STRUCTURED ASSET MORTGAGE INVESTMENTS II INC., DEPOSITOR

STRUCTURED ASSET MORTGAGE INVESTMENTS II INC.,
DEPOSITOR

DEUTsCHE BANK NATIONAL TRUST COMPANY
TRUSTEE

XXXXX FARGO BANK, NATIONAL ASSOCIATION,
MASTER SERVICER AND SECURITIES ADMINISTRATOR

and

MORTGAGEIT, INC.
SELLER AND COMPANY

POOLING AND SERVICING AGREEMENT

Dated as of November 1, 2005

Structured Asset Mortgage Investments II Inc.
MortgageIT Trust 2005-AR1,

Mortgage Pass-Through Certificates, Series 2005-AR1

ARTICLE I
Definitions

ARTICLE II
Conveyance of Mortgage Loans; Original Issuance of Certificates

Section 2.01	Conveyance of Mortgage Loans to Trustee	38
Section 2.02	Acceptance of Mortgage Loans by Trustee	40
Section 2.03	Assignment of Interest in the Mortgage Loan Purchase Agreement	42
Section 2.04	Substitution of Mortgage Loans	43
Section 2.05	Issuance of Certificates	44
Section 2.06	Representations and Warranties Concerning the Depositor	44
Section 2.07	[Reserved]	44
Section 2.08	Permitted Activities of the Trust	44

ARTICLE III
Administration and Servicing of Mortgage Loans

Section 3.01	Master Servicer	46
Section 3.02	REMIC-Related Covenants	47
Section 3.03	Monitoring of Servicer	47
Section 3.04	Fidelity Bond	48
Section 3.05	Power to Act; Procedures	48
Section 3.06	Due-on-Sale Clauses; Assumption Agreements	49
Section 3.07	Release of Mortgage Files	49
Section 3.08	Documents, Records and Funds in Possession of Master Servicer To Be Held for Trustee	50
Section 3.09	Standard Hazard Insurance and Flood Insurance Policies	51
Section 3.10	Presentment of Claims and Collection of Proceeds	51
Section 3.11	Maintenance of the Primary Mortgage Insurance Policies	52
Section 3.12	Trustee to Retain Possession of Certain Insurance Policies and Documents	52
Section 3.13	Realization Upon Defaulted Mortgage Loans	52
Section 3.14	Compensation for the Master Servicer	53
Section 3.15	REO Property	53
Section 3.16	Annual Officer’s Certificate as to Compliance	54
Section 3.17	Annual Independent Accountant’s Servicing Report	54
Section 3.18	Reports Filed with Securities and Exchange Commission	55
Section 3.19	The Company	55
Section 3.20	UCC	55
Section 3.21	Optional Purchase of Defaulted Mortgage Loans	56

ARTICLE IV
Accounts

Section 4.01	Protected Account	57
Section 4.02	[Reserved]	58
Section 4.03	[Reserved]	59
Section 4.04	Distribution Account	60
Section 4.05	Permitted Withdrawals and Transfers from the Distribution Account	60
Section 4.06	Class A/B Reserve Fund	60
Section 4.07	[Reserved]	60
Section 4.08	Corridor Contract Reserve Account	60
Section 4.09	Class XP Reserve Account	60

ARTICLE V
Certificates

Section 5.01	Certificates	63
Section 5.02	Registration of Transfer and Exchange of Certificates	69
Section 5.03	Mutilated, Destroyed, Lost or Stolen Certificates	72
Section 5.04	Persons Deemed Owners	73
Section 5.05	Transfer Restrictions on Residual Certificates	73
Section 5.06	Restrictions on Transferability of Certificates	74
Section 5.07	ERISA Restrictions	75
Section 5.08	Rule 144A Information	76

ARTICLE VI
Payments to Certificateholders

Section 6.01	Distributions on the Certificates	77
Section 6.02	Allocation of Losses and Subsequent Recoveries	82
Section 6.03	Payments	84
Section 6.04	Statements to Certificateholders	85
Section 6.05	Monthly Advances	87
Section 6.06	Compensating Interest Payments	87
Section 6.07	Distributions on REMIC I Regular Interests and REMIC II Regular Interests	88

ARTICLE VII
The Master Servicer

Section 7.01	Liabilities of the Master Servicer	89
Section 7.02	Merger or Consolidation of the Master Servicer	89
Section 7.03	Indemnification of the Trustee, the Master Servicer and the Securities Administrator	89
Section 7.04	Limitations on Liability of the Master Servicer and Others	90
Section 7.05	Master Servicer Not to Resign	91

Section 7.06	Successor Master Servicer	91
Section 7.07	Sale and Assignment of Master Servicing	91

ARTICLE VIII
Default

Section 8.01	Events of Default	93
Section 8.02	Trustee to Act; Appointment of Successor	94
Section 8.03	Notification to Certificateholders	95
Section 8.04	Waiver of Defaults	95
Section 8.05	List of Certificateholders	96


ARTICLE IX
Concerning the Trustee and the Securities Administrator

Section 9.01	Duties of Trustee	97
Section 9.02	Certain Matters Affecting the Trustee and the Securities Administrator	99
Section 9.03	Trustee and Securities Administrator Not Liable for Certificates or Mortgage Loans	100
Section 9.04	Trustee and Securities Administrator May Own Certificates	101
Section 9.05	Trustee’s and Securities Administrator’s Fees and Expenses	101
Section 9.06	Eligibility Requirements for Trustee and Securities Administrator	101
Section 9.07	Insurance	102
Section 9.08	Resignation and Removal of the Trustee and Securities Administrator	102
Section 9.09	Successor Trustee and Successor Securities Administrator	103
Section 9.10	Merger or Consolidation of Trustee or Securities Administrator	104
Section 9.11	Appointment of Co-Trustee or Separate Trustee	104
Section 9.12	Federal Information Returns and Reports to Certificateholders; REMIC Administration	105

ARTICLE X
Termination

Xxxxxxx 00.00	Xxxxxxxxxxx Xxxx Xxxxxxxxxx or Liquidation of the Mortgage Loans	108
Section 10.02	Additional Termination Requirements	110

ARTICLE XI
Miscellaneous Provisions

Section 11.01	Intent of Parties	112
Section 11.02	Amendment	112
Section 11.03	Recordation of Agreement	113
Section 11.04	Limitation on Rights of Certificateholders	113

Section 11.05	Acts of Certificateholders	114
Section 11.06	Governing Law	115
Section 11.07	Notices	115
Section 11.08	Severability of Provisions	116
Section 11.09	Successors and Assigns	116
Section 11.10	Article and Section Headings	116
Section 11.11	Counterparts	116
Section 11.12	Notice to Rating Agencies	116

EXHIBITS

Exhibit A-1	-	Form of Class I-A Certificates
Exhibit A-2	-	Form of Class I-X Certificates
Exhibit A-3	-	Form of Class I-M-X Certificates
Exhibit A-4	-	Form of Class I-B-[1][2][3] Certificates
Exhibit A-5	-	Form of Class R Certificates
Exhibit A-6	-	Form of Class I-B-[4][5][6] Certificates
Exhibit A-7	-	Form of Class XP Certificates
Exhibit B	-	Mortgage Loan Schedule
Exhibit C	-	[Reserved]
Exhibit D	-	Request for Release of Documents
Exhibit E	-	Form of Affidavit pursuant to Section 860E(e)(4)
Exhibit F-1	-	Form of Investment Letter
Exhibit F-2	-	Form of Rule 144A and Related Matters Certificate
Exhibit G	-	Form of Custodial Agreement
Exhibit H-1	-	Servicing Agreement
Exhibit H-2	-	Subservicing Agreement
Exhibit I	-	[Reserved]
Exhibit J	-	Mortgage Loan Purchase Agreement
Exhibit K	-	Form of Trustee Limited Power of Attorney
Exhibit L	-	[Reserved]
Exhibit M	-	[Reserved]

POOLING AND SERVICING AGREEMENT

Pooling and Servicing Agreement dated as of November 1, 2005, among Structured Asset Mortgage Investments II Inc., a Delaware corporation, as depositor (the “Depositor”), Deutsche Bank National Trust Company, not in its individual capacity but solely as trustee (the “Trustee”), Xxxxx Fargo Bank, National Association, as master servicer (in such capacity, the “Master Servicer”) and as securities administrator (in such capacity, the “Securities Administrator”), and MortgageIT, Inc., as seller (in such capacity, the “Seller”) and as company (in such capacity, the “Company”).

PRELIMINARY STATEMENT

On or prior to the Closing Date, the Depositor acquired the Mortgage Loans from the Seller. On the Closing Date, the Depositor will sell the Mortgage Loans and certain other property to the Trust Fund and receive in consideration therefor Certificates evidencing the entire beneficial ownership interest in the Trust Fund.

The Securities Administrator on behalf of the Trust shall make an election for the assets constituting REMIC I to be treated for federal income tax purposes as a REMIC. On the Startup Day, the REMIC I Regular Interests will be designated “regular interests” in such REMIC.

The Securities Administrator on behalf of the Trust shall make an election for the assets constituting REMIC II to be treated for federal income tax purposes as a REMIC. On the Startup Day, the REMIC II Regular Interests will be designated “regular interests” in such REMIC.

The Class R Certificates will evidence ownership of the “residual interest” in each REMIC.

The Mortgage Loans will have an Outstanding Principal Balance as of the Cut-off Date, after deducting all Scheduled Principal due on or before the Cut-off Date, of approximately $396,760,983.

In consideration of the mutual agreements herein contained, the Depositor, the Master Servicer, the Securities Administrator, the Seller, the Company and the Trustee agree as follows:

ARTICLE I

DEFINITIONS

Whenever used in this Agreement, the following words and phrases, unless otherwise expressly provided or unless the context otherwise requires, shall have the meanings specified in this Article.

Accepted Master Servicing Practices: With respect to any Mortgage Loan, as applicable, either (x) those customary mortgage servicing practices of prudent mortgage servicing institutions that master service mortgage loans of the same type and quality as such Mortgage Loan in the jurisdiction where the related Mortgaged Property is located, to the extent applicable to the Master Servicer (except in its capacity as successor to the Servicer), or (y) as provided in

the Servicing Agreement, to the extent applicable to the Servicer, but in no event below the standard set forth in clause (x).

Account: The Distribution Account, the Class A/B Reserve Fund, the Class XP Reserve Account, the Corridor Contract Reserve Account and the Protected Account as the context may require.

Accrued Certificate Interest: With respect to the Certificates of any Class (other than the Class R Certificates and the Class XP Certificates) on any Distribution Date, is equal to the amount of interest accrued during the related Interest Accrual Period at the applicable Pass-Through Rate on the Current Principal Amount or Notional Amount, as applicable, of such Certificate immediately prior to such Distribution Date, less (1) in the case of a Senior Certificate, such Certificate’s share of (a) Prepayment Interest Shortfalls on the Mortgage Loans, to the extent not covered by Compensating Interest Payments made by the Servicer or the Master Servicer, (b) interest shortfalls on the Mortgage Loans resulting from the application of the Relief Act or similar state law, (c) after the Cross-Over Date, the interest portion of any Realized Losses on the Mortgage Loans, in each case, allocated thereto in accordance with Section 6.02(g) and (d) any shortfalls resulting from Net Deferred Interest on the Mortgage Loans allocated thereto in accordance with Section 6.01(e), (2) in the case of a Subordinate Certificate, such Certificate’s share of (a) Prepayment Interest Shortfalls on the Mortgage Loans, to the extent not covered by Compensating Interest Payments made by the Servicer or the Master Servicer, (b) interest shortfalls on the Mortgage Loans resulting from the application of the Relief Act or similar state law, (c) the interest portion of any Realized Losses on the Mortgage Loans allocated thereto in accordance with Section 6.02(g) and (d) any shortfalls resulting from Net Deferred Interest on the Mortgage Loans allocated thereto in accordance with Section 6.01(e) and (3) in the case of the Class X Certificates, the Accrued Certificate Interest for each Class on any Distribution Date will be reduced by the amount of any Carryover Shortfall Amount for the Class I-A Certificates (in the case of the Class I-X-1 Certificates) and any Carryover Shortfall Amount for the Class I-B Certificates (in the case of the Class I-M-X Certificates and, with respect to the initial Distribution Date only and the Class I-B-1 Certificates and the Class I-B-2 Certificates, the Class I-X-1 Certificates). Accrued Certificate Interest is calculated on the basis of (i) a 360-day year consisting of twelve 30-day months for the Class X Certificates and (ii) a 360-day year and the actual number of days elapsed in the Interest Accrual Period for the Class I-A and Class I-B Certificates. No Accrued Certificate Interest will be payable with respect to any Class of Certificates after the Distribution Date on which the outstanding Current Principal Amount of such Certificate (other than the Class X Certificates) has been reduced to zero.

Affiliate: As to any Person, any other Person controlling, controlled by or under common control with such Person. “Control” means the power to direct the management and policies of a Person, directly or indirectly, whether through ownership of voting securities, by contract or otherwise. “Controlled” and “Controlling” have meanings correlative to the foregoing. The Trustee may conclusively presume that a Person is not an Affiliate of another Person unless a Responsible Officer of the Trustee has actual knowledge to the contrary.

Agreement: This Pooling and Servicing Agreement and all amendments hereof and supplements hereto.

Allocable Share: With respect to any Class of Subordinate Certificates (other than the Class I-M-X Certificates) and any Distribution Date, an amount equal to the product of (i) the Subordinate Optimal Principal Amount and (ii) the fraction, the numerator of which is the Current Principal Amount of such Class and the denominator of which is the aggregate Current Principal Amount of all Classes of the Subordinate Certificates; provided, however, that no Class of Subordinate Certificates (other than the Class of Class I-B Certificates with the lowest numerical designation) shall be entitled on any Distribution Date to receive distributions pursuant to clauses (ii), (iii) and (v) of the definition of Subordinate Optimal Principal Amount unless the Class Prepayment Distribution Trigger for such Distribution Date has been satisfied (any amount distributable pursuant to clauses (ii), (iii) and (v) of the definition of Subordinate Optimal Principal Amount shall be distributed among the Classes entitled thereto, pro rata based on their respective Current Principal Amounts); provided, further, that if on a Distribution Date, the Current Principal Amount of any Class of Subordinate Certificates for which the Class Prepayment Distribution Trigger has been satisfied is reduced to zero, such Class’s remaining Allocable Share shall be distributed to the remaining Classes of Subordinate Certificates which satisfy the Class Prepayment Distribution Trigger in reduction of their respective Current Principal Amounts, sequentially to Class I-B Certificates in the order of their numerical Class designations.

Applicable Credit Rating: For any long-term deposit or security, a credit rating of AAA in the case of S&P or Aaa in the case of Moody’s (or with respect to investments in money market funds, a credit rating of “AAAm” or “AAAm-G” in the case of S&P and the highest rating given by Moody’s for money market funds in the case of Moody’s). For any short-term deposit or security, or a rating of A-l+ in the case of S&P or Prime-1 in the case of Moody’s.

Applicable State Law: For purposes of Section 9.12(d), the Applicable State Law shall be (a) the law of the State of New York and (b) such other state law whose applicability shall have been brought to the attention of the Securities Administrator and the Trustee by either (i) an Opinion of Counsel reasonably acceptable to the Securities Administrator and the Trustee delivered to it by the Master Servicer or the Depositor, or (ii) written notice from the appropriate taxing authority as to the applicability of such state law.

Appraised Value: For any Mortgaged Property related to a Mortgage Loan, the amount set forth as the appraised value of such Mortgaged Property in an appraisal made for the mortgage originator in connection with its origination of the related Mortgage Loan.

Assumed Final Distribution Date: The Distribution Date occurring in November 2035.

Available Funds: With respect to any Distribution Date, an amount equal to the aggregate of the following amounts: (a) all previously undistributed payments on account of principal (including the principal portion of Scheduled Payments, Principal Prepayments and the principal portion of Net Liquidation Proceeds) and all previously undistributed payments on account of interest received after the Cut-off Date and on or prior to the related Determination Date, (b) any Monthly Advances and Compensating Interest Payments by the Servicer with respect to such Distribution Date and (c) any reimbursed amount in connection with losses on investments of deposits in an account, except:

(i)	all payments that were received before the Cut-off Date;

(ii) all Principal Prepayments and Liquidation Proceeds received after the applicable Prepayment Period;

(iii) all payments, other than Principal Prepayments, that represent early receipt of Scheduled Payments due on a date or dates subsequent to the related Due Date;

(iv) amounts received on particular Mortgage Loans as late payments of principal or interest and respecting which, and to the extent that, there are any unreimbursed Monthly Advances;

(v) amounts representing Monthly Advances determined to be Nonrecoverable Advances;

(vi) any investment earnings on amounts on deposit in the Distribution Account and the Class A/B Reserve Fund and amounts permitted to be withdrawn from the Distribution Account pursuant to this Agreement;

(vii) amounts needed to pay the Servicing Fees or the Master Servicer Fee or to reimburse the Servicer or the Master Servicer for amounts due under the Servicing Agreement and the Agreement to the extent such amounts have not been retained by, or paid previously to, the Servicer or the Master Servicer;

(viii) amounts applied to pay any fees with respect to any lender-paid primary mortgage insurance policy (if any); and

(ix) any expenses or other amounts reimbursable to the Trustee, the Securities Administrator, the Master Servicer and the Custodian pursuant to Section 7.04(c) or Section 9.05.

Average Loss Severity Percentage: With respect to any Distribution Date, the percentage equivalent of a fraction, the numerator of which is the sum of the Loss Severity Percentages for each Mortgage Loan which had a Realized Loss and the denominator of which is the number of Mortgage Loans that had Realized Losses.

Bankruptcy Code: The United States Bankruptcy Code, as amended as codified in 11 U.S.C. §§ 101-1330.

Bankruptcy Loss: With respect to any Mortgage Loan, any Deficient Valuation or Debt Service Reduction related to such Mortgage Loan as reported by the Servicer to the Master Servicer.

Book-Entry Certificates: Initially, all Classes of Certificates other than the Private Certificates and the Residual Certificates.

Business Day: Any day other than (i) a Saturday or a Sunday, or (ii) a day on which the New York Stock Exchange or Federal Reserve is closed or on which banking institutions in the jurisdiction in which the Trustee, the Master Servicer, Custodian, the Servicer or the Securities Administrator are authorized or obligated by law or executive order to be closed.

Carryover Shortfall Amount: For any Distribution Date and for the Class I-A Certificates and the Class I-B Certificates, an amount equal to the sum of: (i) the excess, if any, of (a) the amount of Accrued Certificate Interest that would have accrued on such Class at a Pass-Through Rate equal to the lesser of (I) One-Month LIBOR plus the related Margin and (II) 10.50%, over (b) the amount of Accrued Certificate Interest on such Class for such Distribution Date less the amount of any Net Deferred Interest added to the Current Principal Amount of such Class on that Distribution Date; (ii) the portion of the amount described in clause (i) above remaining unpaid from prior Distribution Dates; and (iii) one month’s interest at the rate described in clause (i)(a) above on the amount described in clause (ii) above.

Certificate: Any mortgage pass-through certificate evidencing a beneficial ownership interest in the Trust Fund signed and countersigned by the Securities Administrator in substantially the forms annexed hereto as Exhibits X-0, X-0, X-0, X-0, X-0, A-6 and A-7 with the blanks therein appropriately completed.

Certificate Owner: Any Person who is the beneficial owner of a Certificate registered in the name of the Depository or its nominee.

Certificate Register: The register maintained pursuant to Section 5.02.

Certificateholder: A Holder of a Certificate.

Class: With respect to the Certificates, any of Class I-A-1, Class I-A-2, Class I-A-3, Class I-X-1, Class I-M-X, Class I-B-1, Class I-B-2, Class I-B-3, Class I-B-4, Class I-B-5, Class I-B-6, Class XP and Class R Certificates.

Class A/B Reserve Fund: As described in Section 4.06 herein.

Class I-A Certificates: The Class I-A-1, Class I-A-2 and Class I-A-3 Certificates.

Class I-A Corridor Contract: With respect to the Class I-A Certificates, the corridor contract, dated as of November 21, 2005, between the Securities Administrator, on behalf of the Trust for the benefit of the Class I-A Certificateholders, and the Counterparty.

Class I-A Corridor Contract Payment Amount: With respect to any Distribution Date and the Class I-A Corridor Contract, the amounts received from such Class I-A Corridor Contract, if any, on such Distribution Date.

Class I-B Certificates: The Class I-B-1, Class I-B-2, Class I-B-3, Class I-B-4, Class I-B-5 and Class I-B-6 Certificates.

Class I-B Corridor Contract: With respect to the Class I-B-1 Certificates and the Class I-B-2 Certificates, the corridor contract, dated as of November 21, 2005, between the Securities

Administrator, on behalf of the Trust for the benefit of the Class I-B-1 Certificateholders and Class I-B-2 Certificateholders, and the Counterparty.

Class I-B Corridor Contract Payment Amount: With respect to any Distribution Date and the Class I-B Corridor Contract, the amounts received from such Class I-B Corridor Contract, if any, on such Distribution Date.

Class I-M-X Notional Amount: With respect to any Distribution Date and the Class I-M-X Certificates, the aggregate Current Principal Amount of the Class I-M-X Certificates and the Class I-B Certificates (before taking into account the payment of principal on such Certificates on such Distribution Date).

Class I-X-1 Notional Amount: With respect to any Distribution Date and the Class I-X-1 Certificates, the aggregate Current Principal Amount of the Class I-A Certificates and the Class I-X-1 Certificates (before taking into account the payment of principal on such Certificates on such Distribution Date).

Class Prepayment Distribution Trigger: For a Class of Subordinate Certificates (other than the Class I-M-X Certificates) for any Distribution Date, the Class Prepayment Distribution Trigger is satisfied if the fraction (expressed as a percentage), the numerator of which is the aggregate Current Principal Amount of such Class and each Class of Subordinate Certificates, respectively, subordinate thereto, if any, and the denominator of which is the Scheduled Principal Balance of all of the Mortgage Loans as of the related Due Date, equals or exceeds such percentage calculated as of the Closing Date.

Class R Certificate: Any one of the Class R Certificates substantially in the form annexed hereto as Exhibit A-5 and evidencing ownership of interests designated as “residual interests” in REMIC I and REMIC II for purposes of the REMIC Provisions. Component I of the Class R Certificates is designated as the sole class of “residual interest” in REMIC I and Component II of the Class R Certificates is designated as the sole class of “residual interest” in REMIC II.

Class R Deposit: The $100 deposit into the Distribution Account by the Depositor on the Closing Date to pay the Class R Certificates in accordance with Section 6.01(a) on the Distribution Date occurring in December 2005.

Class X Certificates: The Class I-X-1 Certificates and the Class I-M-X Certificates.

Class XP Reserve Account: The account established and maintained by the Securities Administrator pursuant to Section 4.09 hereof.

Closing Date: November 21, 2005.

Code: The Internal Revenue Code of 1986, as amended.

Company: MortgageIT.

Compensating Interest Payment: As defined in Section 6.06.

Corporate Trust Office: The designated office of the Trustee or Securities Administrator, as applicable, where at any particular time its respective corporate trust business with respect to this Agreement shall be administered. The Corporate Trust Office of the Trustee at the date of the execution of this Agreement is located at 0000 Xx. Xxxxxx Xxxxx, Xxxxx Xxx, Xxxxxxxxxx 00000, Attention: Trust Administration – MG05A1. The Corporate Trust Office of the Securities Administrator at the date of the execution of this Agreement is located at 0000 Xxx Xxxxxxxxx Xxxx, Xxxxxxxx, Xxxxxxxx 00000, Attention: Corporate Trust Group, MortgageIT 2005-AR1. For the purpose of registration and transfer and exchange only, the Corporate Trust Office of the Securities Administrator shall be located at Xxxxx Xxxxxx xxx Xxxxxxxxx Xxxxxx, Xxxxxxxxxxx, Xxxxxxxxx 00000, Attention: Corporate Trust Group, MortgageIT 2005-AR1.

Corridor Contract: The Class I-A Corridor Contract or the Class I-B Corridor Contract, as applicable.

Corridor Contract Payment Amount: The Class I-A Corridor Contract Payment Amount or the Class I-B Corridor Contract Payment Amount, as applicable.

Corridor Contract Reserve Account: The trust account or accounts created and maintained by the Securities Administrator pursuant to Section 4.08 hereof, which shall be denominated “Xxxxx Fargo Bank, National Association, as Securities Administrator on behalf of the Trustee f/b/o holders of Structured Asset Mortgage Investments II Inc., MortgageIT Trust 2005-AR1, Mortgage Pass-Through Certificates, Series 2005-AR1 – Corridor Contract Reserve Account.” For purposes of the REMIC Provisions, the Corridor Contract Reserve Account will be an outside reserve fund. For federal income tax purposes, the Depositor shall be treated as the owner of the Corridor Contract Reserve Account and shall include any investment earnings on the Corridor Contract Reserve Account in income for such purposes. Any amounts distributed to the Corridor Contract Reserve Account from any REMIC created hereunder shall be treated as having been distributed to the Depositor from such REMIC.

Counterparty: Bear Xxxxxxx Financial Products Inc., and any successor thereto, or any successor counterparty under each Corridor Contract.

Cross-Over Date: The first Distribution Date on which the aggregate Current Principal Amount of the Subordinate Certificates has been reduced to zero.

Current Principal Amount: With respect to each Class of Certificates as of any Distribution Date, the initial principal amount of such Certificate plus the amount of any Net Deferred Interest allocated thereto on the related Distribution Date and all previous Distribution Dates plus, in the case of the Subordinate Certificates, any Subsequent Recoveries added to the Current Principal Amount of such Certificates pursuant to Section 6.02(h) hereof, and reduced by (i) all amounts distributed on previous Distribution Dates on such Certificate with respect to principal, (ii) the principal portion of all Realized Losses (other than Realized Losses resulting from Debt Service Reductions) allocated prior to such Distribution Date to such Certificate, taking account of the Loss Allocation Limitation, and (iii) in the case of a Subordinate Certificate, such Certificate’s pro rata share, if any, of the applicable Subordinate Certificate Writedown Amount for previous Distribution Dates. With respect to any Class of Certificates, the Current Principal Amount thereof will equal the sum of the Current Principal Amounts of all

Certificates in such Class. The initial Current Principal Amount for each Class of Certificates is set forth in Section 5.01(c)(iv). Notwithstanding the foregoing, solely for purposes of giving consents, directions, waivers, approvals, requests and notices, the Class R Certificates after the Distribution Date on which the principal thereof has been paid in full shall be deemed to have a Current Principal Amount equal to the Current Principal Amount thereof on the day immediately preceding such Distribution Date.

Custodial Agreement: An agreement, dated as of the Closing Date among the Depositor, the Master Servicer, the Trustee and the Custodian in substantially the form of Exhibit G hereto.

Custodian: Deutsche Bank National Trust Company, or any successor custodian appointed pursuant to the provisions hereof and of the Custodial Agreement.

Cut-off Date: November 1, 2005.

Cut-off Date Balance: $387,566,313.36.

Debt Service Reduction: Any reduction of the Scheduled Payments which a Mortgagor is obligated to pay with respect to a Mortgage Loan as a result of any proceeding under the Bankruptcy Code or any other similar state law or other proceeding.

Deferred Interest: The amount of interest which is deferred and added to the Principal Balance of a Mortgage Loan due to negative amortization on such Mortgage Loan.

Deficient Valuation: With respect to any Mortgage Loan, a valuation of the Mortgaged Property by a court of competent jurisdiction in an amount less than the then outstanding indebtedness under the Mortgage Loan, which valuation results from a proceeding initiated under the Bankruptcy Code or any other similar state law or other proceeding.

Depositor: Structured Asset Mortgage Investments II Inc., a Delaware corporation, or its successors in interest.

Depository: The Depository Trust Company, the nominee of which is Cede & Co., or any successor thereto.

Depository Agreement: The meaning specified in Section 5.01(a) hereof.

Depository Participant: A broker, dealer, bank or other financial institution or other Person for whom from time to time the Depository effects book-entry transfers and pledges of securities deposited with the Depository.

Designated Depository Institution: A depository institution (commercial bank, federal savings bank, mutual savings bank or savings and loan association) or trust company (which may include the Trustee and the Securities Administrator), the deposits of which are fully insured by the FDIC to the extent provided by law.

Determination Date: With respect to each Mortgage Loan, the Determination Date as defined in the Servicing Agreement.

Disqualified Organization: Any of the following: (i) the United States, any State or political subdivision thereof, any possession of the United States, or any agency or instrumentality of any of the foregoing (other than an instrumentality which is a corporation if all of its activities are subject to tax and, except for the Xxxxxxx Mac or any successor thereto, a majority of its board of directors is not selected by such governmental unit), (ii) any foreign government, any international organization, or any agency or instrumentality of any of the foregoing, (iii) any organization (other than certain farmers’ cooperatives described in Section 521 of the Code) which is exempt from the tax imposed by Chapter 1 of the Code (including the tax imposed by Section 511 of the Code on unrelated business taxable income), (iv) rural electric and telephone cooperatives described in Section 1381(a)(2)(C) of the Code or (v) any other Person so designated based upon an Opinion of Counsel that the holding of an ownership interest in a Residual Certificate by such Person may cause any 2005-AR1 REMIC contained in the Trust or any Person having an ownership interest in the Residual Certificate (other than such Person) to incur a liability for any federal tax imposed under the Code that would not otherwise be imposed but for the transfer of an ownership interest in a Residual Certificate to such Person. The terms “United States,” “State” and “international organization” shall have the meanings set forth in Section 7701 of the Code or successor provisions.

Distribution Account: The trust account or accounts created and maintained by the Securities Administrator pursuant to Section 4.04, which shall be denominated in the name of the Securities Administrator on behalf of the Trustee f/b/o holders of Structured Asset Mortgage Investments II Inc., MortgageIT Trust 2005-AR1, Mortgage Pass-Through Certificates, Series 2005-AR1 - Distribution Account.” The Distribution Account shall be an Eligible Account.

Distribution Account Deposit Date: The Business Day prior to each Distribution Date.

Distribution Date: The 25th day of any month, beginning in the month immediately following the month of the Closing Date, or, if such 25th day is not a Business Day, the Business Day immediately following.

DTC Custodian: Xxxxx Fargo Bank, National Association, or its successors in interest as custodian for the Depository.

Due Date: With respect to each Mortgage Loan, the date in each month on which its Scheduled Payment is due if such due date is the first day of a month and otherwise is deemed to be the first day of the following month or such other date specified in the Servicing Agreement.

Due Period: With respect to any Distribution Date and each Mortgage Loan, the period commencing on the second day of the month preceding the calendar month in which the Distribution Date occurs and ending at the close of business on the first day of the month in which the Distribution Date occurs.

Eligible Account: Any of (i) a segregated account maintained with a federal or state chartered depository institution (A) the short-term obligations of which are rated A-1 or better by Standard & Poor’s and P-1 by Moody’s at the time of any deposit therein or (B) insured by the FDIC (to the limits established by such Corporation), the uninsured deposits in which account are otherwise secured such that, as evidenced by an Opinion of Counsel (obtained by the Person

requesting that the account be held pursuant to this clause (i)) delivered to the Securities Administrator prior to the establishment of such account, the Certificateholders will have a claim with respect to the funds in such account and a perfected first priority security interest against any collateral (which shall be limited to Permitted Investments, each of which shall mature not later than the Business Day immediately preceding the Distribution Date next following the date of investment in such collateral or the Distribution Date if such Permitted Investment is an obligation of the institution that maintains the Distribution Account) securing such funds that is superior to claims of any other depositors or general creditors of the depository institution with which such account is maintained and will not cause a downgrade of the current ratings, (ii) a segregated trust account or accounts maintained with a federal or state chartered depository institution or trust company with trust powers acting in its fiduciary capacity or (iii) a segregated account or accounts of a depository institution acceptable to the Rating Agencies (as evidenced in writing by the Rating Agencies that use of any such account as the Distribution Account will not have an adverse effect on the then-current ratings assigned to the Classes of Certificates then rated by the Rating Agencies). Eligible Accounts may bear interest.

ERISA: The Employee Retirement Income Security Act of 1974, as amended.

Event of Default: As defined in Section 8.01.

Excess Liquidation Proceeds: To the extent that such amount is not required by law to be paid to the related Mortgagor, the amount, if any, by which Liquidation Proceeds with respect to a Liquidated Mortgage Loan exceed the sum of (i) the Outstanding Principal Balance of such Mortgage Loan and accrued but unpaid interest at the related Mortgage Interest Rate through the last day of the month in which the related Liquidation Date occurs, plus (ii) related Liquidation Expenses.

Xxxxxx Xxx: Federal National Mortgage Association and any successor thereto.

FDIC: Federal Deposit Insurance Corporation and any successor thereto.

Final Certification: The certification substantially in the form of Exhibit Three to the Custodial Agreement.

Fiscal Quarter: December 1 through the last day of February, March 1 through May 31, June 1 through August 31, or September 1 through November 30, as applicable.

Fractional Undivided Interest: With respect to any Class of Certificates (other than the Class XP Certificates), the fractional undivided interest evidenced by any Certificate of such Class the numerator of which is the Current Principal Amount of such Certificate and the denominator of which is the Current Principal Amount of such Class. With respect to the Class XP Certificates, the percentage interest stated thereon. With respect to the Certificates in the aggregate, the fractional undivided interest evidenced by (i) a Residual Certificate will be deemed to equal 1.0% and (ii) a Certificate of any other Class will be deemed to equal 99.0% multiplied by a fraction, the numerator of which is the Current Principal Amount of such Certificate and the denominator of which is the aggregate Current Principal Amount of all the Certificates.

Xxxxxxx Mac: Xxxxxxx Mac, formerly the Federal Home Loan Mortgage Corporation, and any successor thereto.

Global Certificate: Any Private Certificate registered in the name of the Depository or its nominee, beneficial interests in which are reflected on the books of the Depository or on the books of a Person maintaining an account with such Depository (directly or as an indirect participant in accordance with the rules of such depository).

GMACM: GMAC Mortgage Corporation and any successor thereto.

Gross Margin: As to each Mortgage Loan, the fixed percentage set forth in the related Mortgage Note and indicated on the Mortgage Loan Schedule which percentage is added to the related Index on each Interest Adjustment Date to determine (subject to rounding, the minimum and maximum Mortgage Interest Rate and the Periodic Rate Cap) the Mortgage Interest Rate until the next Interest Adjustment Date.

Holder: The Person in whose name a Certificate is registered in the Certificate Register, except that, subject to Sections 11.02(b) and 11.05(e), solely for the purpose of giving any consent pursuant to this Agreement, any Certificate registered in the name of the Depositor, the Master Servicer, the Securities Administrator or the Trustee or any Affiliate thereof shall be deemed not to be outstanding and the Fractional Undivided Interest evidenced thereby shall not be taken into account in determining whether the requisite percentage of Fractional Undivided Interests necessary to effect any such consent has been obtained.

Indemnified Persons: The Trustee, the Master Servicer, the Custodian and the Securities Administrator and their officers, directors, agents and employees and, with respect to the Trustee, any separate co-trustee and its officers, directors, agents and employees.

Independent: When used with respect to any specified Person, this term means that such Person (a) is in fact independent of the Depositor or the Master Servicer and of any Affiliate of the Depositor or the Master Servicer, (b) does not have any direct financial interest or any material indirect financial interest in the Depositor or the Master Servicer or any Affiliate of the Depositor or the Master Servicer and (c) is not connected with the Depositor or the Master Servicer or any Affiliate as an officer, employee, promoter, underwriter, trustee, partner, director or person performing similar functions.

Index: The index, if any, specified in a Mortgage Note by reference to which the related Mortgage Interest Rate will be adjusted from time to time.

Individual Certificate: Any Private Certificate registered in the name of the Holder other than the Depository or its nominee.

Initial Certification: The certification substantially in the form of Exhibit One to the Custodial Agreement.

Institutional Accredited Investor: Any Person meeting the requirements of Rule 501(a)(l), (2), (3) or (7) of Regulation D under the Securities Act or any entity all of the equity holders in which come within such paragraphs.

Insurance Policy: With respect to any Mortgage Loan, any standard hazard insurance policy, flood insurance policy or title insurance policy.

Insurance Proceeds: Amounts paid by the insurer under any Insurance Policy covering any Mortgage Loan or Mortgaged Property other than amounts required to be paid over to the Mortgagor pursuant to law or the related Mortgage Note or Security Instrument and other than amounts used to repair or restore the Mortgaged Property or to reimburse insured expenses, including the Servicer's costs and expenses incurred in connection with presenting claims under the related Insurance Policies.

Interest Accrual Period: For each Class of Class I-A Certificates and Class I-B Certificates and for any Distribution Date, the period commencing on the Distribution Date in the month preceding the month in which a Distribution Date occurs (or the Closing Date, in the case of the first Interest Accrual Period) and ending on the day immediately prior to such Distribution Date. For each Class of Class X Certificates and for any Distribution Date, the one-month period preceding the month in which such Distribution Date occurs.

Interest Adjustment Date: With respect to a Mortgage Loan, the date, if any, specified in the related Mortgage Note on which the Mortgage Interest Rate is subject to adjustment.

Interest Shortfall: With respect to any Distribution Date and each Mortgage Loan that during the related Prepayment Period was the subject of a Principal Prepayment or constitutes a Relief Act Mortgage Loan, an amount determined as follows:

(a) Partial principal prepayments received during the relevant Prepayment Period: The difference between (i) one month’s interest at the applicable Net Rate on the amount of such prepayment and (ii) the amount of interest for the calendar month of such prepayment (adjusted to the applicable Net Rate) received at the time of such prepayment;

(b) Principal prepayments in full received during the relevant Prepayment Period: The difference between (i) one month’s interest at the applicable Net Rate on the Scheduled Principal Balance of such Mortgage Loan immediately prior to such prepayment and (ii) the amount of interest for the calendar month of such prepayment (adjusted to the applicable Net Rate) received at the time of such prepayment; and

(c) Relief Act Mortgage Loans: As to any Relief Act Mortgage Loan, the excess of (i) 30 days’ interest (or, in the case of a principal prepayment in full, interest to the date of prepayment) on the Scheduled Principal Balance thereof (or, in the case of a principal prepayment in part, on the amount so prepaid) at the Net Rate over (ii) 30 days’ interest (or, in the case of a principal prepayment in full, interest to the date of prepayment) on such Scheduled Principal Balance (or, in the case of a Principal Prepayment in part, on the amount so prepaid) at the annual interest rate required to be paid by the Mortgagor as limited by application of the Relief Act.

Interest-Only Certificates: The Class I-X-1 Certificates and the Class I-M-X Certificates.

Interim Certification: The certification substantially in the form of Exhibit Two to the Custodial Agreement.

Investment Letter: The letter to be furnished by each Institutional Accredited Investor which purchases any of the Private Certificates in connection with such purchase, substantially in the form set forth as Exhibit F-1 hereto.

LIBOR Business Day: Any day other than a Saturday or a Sunday or a day on which banking institutions in the city of London, England are required or authorized by law to be closed.

LIBOR Determination Date: With respect to each Class of Offered Certificates and for the first Interest Accrual Period, November 17, 2005. With respect to each Class of Offered Certificates and any Interest Accrual Period thereafter, the second LIBOR Business Day preceding the commencement of such Interest Accrual Period.

Liquidated Mortgage Loan: Any defaulted Mortgage Loan as to which the Servicer or the Master Servicer has determined that all amounts it expects to recover from or on account of such Mortgage Loan have been recovered.

Liquidation Date: With respect to any Liquidated Mortgage Loan, the date on which the Master Servicer or the Servicer has certified that such Mortgage Loan has become a Liquidated Mortgage Loan.

Liquidation Expenses: With respect to a Mortgage Loan in liquidation, unreimbursed expenses paid or incurred by or for the account of the Master Servicer or the Servicer in connection with the liquidation of such Mortgage Loan and the related Mortgage Property, such expenses including (a) property protection expenses, (b) property sales expenses, (c) foreclosure and sale costs, including court costs and reasonable attorneys’ fees, and (d) similar expenses reasonably paid or incurred in connection with liquidation.

Liquidation Proceeds: Cash received in connection with the liquidation of a defaulted Mortgage Loan, whether through trustee’s sale, foreclosure sale, Insurance Proceeds, condemnation proceeds or otherwise and Subsequent Recoveries.

Loan-to-Value Ratio: With respect to any Mortgage Loan, the fraction, expressed as a percentage, the numerator of which is the original principal balance of the related Mortgage Loan and the denominator of which is the Original Value of the related Mortgaged Property.

Loss Allocation Limitation: The meaning specified in Section 6.02(c) hereof.

Loss Severity Percentage: With respect to any Distribution Date, the percentage equivalent of a fraction, the numerator of which is the amount of Realized Losses incurred on a Mortgage Loan and the denominator of which is the Scheduled Principal Balance of such Mortgage Loan immediately prior to the liquidation of such Mortgage Loan.

Lost Notes: The original Mortgage Notes that have been lost, as indicated on the Mortgage Loan Schedule.

Margin: With respect to any Distribution Date on or prior to the first possible Optional Termination Date and (i) the Class I-A-1 Certificates, 0.250% per annum, (ii) the Class I-A-2

Certificates, 0.370% per annum, (iii) the Class I-A-3 Certificates, 0.450% per annum, (iv) the Class I-B-1 Certificates, 0.750% per annum; (v) the Class I-B-2 Certificates, 1.250% per annum; (vi) the Class I-B-3 Certificates, 2.100% per annum; (vii) the Class I-B-4 Certificates, 2.100% per annum; (viii) the Class I-B-5 Certificates, 2.100% per annum; (ix) the Class I-B-6 Certificates, 2.100% per annum; and with respect to any Distribution Date after the first possible Optional Termination Date and (i) the Class I-A-1 Certificates, 0.500% per annum, (ii) the Class I-A-2 Certificates, 0.740% per annum, (iii) the Class I-A-3 Certificates, 0.900% per annum, (iv) the Class I-B-1 Certificates, 1.125% per annum; (v) the Class I-B-2 Certificates, 1.875% per annum; (vi) the Class I-B-3 Certificates, 3.150% per annum; (vii) the Class I-B-4 Certificates, 3.150% per annum; (viii) the Class I-B-5 Certificates, 3.150% per annum; (ix) the Class I-B-6 Certificates, 3.150% per annum.

Marker Rate: With respect to the Class I-X-1 Certificates or REMIC II Regular Interest I-X-1 and any Distribution Date, in relation to the REMIC I Regular Interests, a per annum rate equal to two (2) times the weighted average of the Uncertificated REMIC I Pass Through Rates for REMIC I Regular Interest LT2 and REMIC I Regular Interest LT3. With respect to the Class I-M-X Certificates or REMIC II Regular Interest I-M-X and any Distribution Date, in relation to the REMIC I Regular Interests, a per annum rate equal to two (2) times the weighted average of the Uncertificated REMIC I Pass-Through Rates for REMIC I Regular Interest LT6 and REMIC I Regular Interest LT7.

Master Servicer: As of the Closing Date, Xxxxx Fargo Bank, National Association and, thereafter, its respective successors in interest that meet the qualifications of the Servicing Agreement and this Agreement.

Master Servicer Certification: A written certification covering servicing of the Mortgage Loans by the Servicer and signed by an officer of the Master Servicer that complies with (i) the Xxxxxxxx-Xxxxx Act of 2002, as amended from time to time, and (ii) the February 21, 2003 Statement by the Staff of the Division of Corporation Finance of the Securities and Exchange Commission Regarding Compliance by Asset-Backed Issuers with Exchange Act Rules 13a-14 and 15d-14, as in effect from time to time; provided that if, after the Closing Date (a) the Xxxxxxxx-Xxxxx Act of 2002 is amended, (b) the Statement referred to in clause (ii) is modified or superceded by any subsequent statement, rule or regulation of the Securities and Exchange Commission or any statement of a division thereof, or (c) any future releases, rules and regulations are published by the Securities and Exchange Commission from time to time pursuant to the Xxxxxxxx-Xxxxx Act of 2002, which in any such case affects the form or substance of the required certification and results in the required certification being, in the reasonable judgment of the Master Servicer, materially more onerous than the form of the required certification as of the Closing Date, the Master Servicer Certification shall be as agreed to by the Master Servicer and the Depositor following a negotiation in good faith to determine how to comply with any such new requirements.

Master Servicing Compensation: The meaning specified in Section 3.14.

Material Defect: The meaning specified in Section 2.02(a).

Maximum Lifetime Mortgage Rate: The maximum level to which a Mortgage Interest Rate can adjust in accordance with its terms, regardless of changes in the applicable Index.

MERS: Mortgage Electronic Registration Systems, Inc., a corporation organized and existing under the laws of the State of Delaware, or any successor thereto.

MERS® System: The system of recording transfers of Mortgage Loans electronically maintained by MERS.

MIN: The Mortgage Identification Number for Mortgage Loans registered with MERS on the MERS® System.

Minimum Lifetime Mortgage Rate: The minimum level to which a Mortgage Interest Rate can adjust in accordance with its terms, regardless of changes in the applicable Index.

MOM Loan: With respect to any Mortgage Loan, MERS acting as the mortgagee of such Mortgage Loan, solely as nominee for the originator of such Mortgage Loan and its successors and assigns, at the origination thereof.

Monthly Advance: An advance of interest required to be made by the Servicer pursuant to the Servicing Agreement or the Master Servicer pursuant to Section 6.05.

Moody’s: Xxxxx’x Investors Service, Inc. or its successor in interest.

Mortgage: The mortgage, deed of trust or other instrument creating a first priority lien on an estate in fee simple or leasehold interest in real property securing a Mortgage Loan.

Mortgage File: The mortgage documents listed in Section 2.01(b) pertaining to a particular Mortgage Loan and any additional documents required to be added to the Mortgage File pursuant to this Agreement.

Mortgage Interest Rate: The annual rate at which interest accrues from time to time on any Mortgage Loan pursuant to the related Mortgage Note, which rate is initially equal to the “Mortgage Interest Rate” set forth with respect thereto on the Mortgage Loan Schedule.

Mortgage Loans: A mortgage loan transferred and assigned to the Trust pursuant to Section 2.01 and held as a part of the Trust Fund, as identified in the Mortgage Loan Schedule (which shall include, without limitation, with respect to each Mortgage Loan, each related Mortgage Note, Mortgage and Mortgage File and all rights appertaining thereto), including a mortgage loan the property securing which has become an REO Property.

Mortgage Loan Purchase Agreement: The Mortgage Loan Purchase Agreement dated as of November 21, 2005, between MortgageIT, as seller, and Structured Asset Mortgage Investments II Inc., as purchaser, and all amendments thereof and supplements thereto, attached as Exhibit J.

Mortgage Loan Schedule: The schedule, attached hereto as Exhibit B with respect to the Mortgage Loans, as amended from time to time to reflect the repurchase or substitution of

Mortgage Loans pursuant to this Agreement or the Mortgage Loan Purchase Agreement, as the case may be.

Mortgage Note: The originally executed note or other evidence of the indebtedness of a Mortgagor under the related Mortgage Loan.

Mortgaged Property: Land and improvements securing the indebtedness of a Mortgagor under the related Mortgage Loan or, in the case of REO Property, such REO Property.

MortgageIT: MortgageIT, Inc. and any successor thereto.

Mortgagor: The obligor on a Mortgage Note.

Net Deferred Interest: On any Distribution Date, the aggregate Deferred Interest on the Mortgage Loans during the related Due Period net of Principal Prepayments in full, partial Principal Prepayments, Net Liquidation Proceeds, Repurchase Proceeds and Scheduled Principal, in that order included in Available Funds for such Distribution Date and available to make principal distributions on the Certificates on that Distribution Date.

Net Interest Shortfall: With respect to any Distribution Date, the Interest Shortfall, if any, for such Distribution Date net of Compensating Interest Payments made with respect to such Distribution Date.

Net Liquidation Proceeds: As to any Liquidated Mortgage Loan, Liquidation Proceeds net of (i) Liquidation Expenses which are payable therefrom to the Servicer or the Master Servicer in accordance with the Servicing Agreement or this Agreement and (ii) unreimbursed advances by the Servicer or the Master Servicer and Monthly Advances.

Net Rate: With respect to each Mortgage Loan, the Mortgage Interest Rate in effect from time to time less the Servicing Fee Rate, expressed as a per annum rate.

Net Rate Cap: For any Distribution Date, the weighted average of the Net Rates of the Mortgage Loans, weighted on the basis of the Scheduled Principal Balances thereof as of the preceding Distribution Date, as adjusted to an effective rate reflecting the accrual of interest on the basis of a 360-day year and the actual number of days elapsed in the related Interest Accrual Period.

Non-Offered Subordinate Certificates: The Class XP, Class I-B-4, Class I-B-5 and Class I-B-6 Certificates.

Nonrecoverable Advance: Any advance or Monthly Advance (i) which was previously made or is proposed to be made by the Master Servicer, the Trustee (as successor Master Servicer) or the Servicer and (ii) which, in the good faith judgment of the Master Servicer, the Trustee or the Servicer, will not or, in the case of a proposed advance or Monthly Advance, would not, be ultimately recoverable by the Master Servicer, the Trustee (as successor Master Servicer) or the Servicer from Liquidation Proceeds, Insurance Proceeds or future payments on the Mortgage Loan for which such advance or Monthly Advance was made or is proposed to be made.

Notional Amount: The Class I-X-1 Notional Amount and the Class I-M-X Notional Amount, as applicable.

Offered Certificates: The Senior Certificates, the Offered Subordinate Certificates and the Class R Certificates.

Offered Subordinate Certificates: The Class I-M-X, Class I-B-1, Class I-B-2 and Class I-B-3 Certificates.

Officer’s Certificate: A certificate signed by the Chairman of the Board, the Vice Chairman of the Board, the President or a Vice President or Assistant Vice President or other authorized officer of the Master Servicer or the Depositor, as applicable, and delivered to the Trustee or the Securities Administrator, as required by this Agreement.

One-Month LIBOR: With respect to any Interest Accrual Period, the rate determined by the Securities Administrator on the related LIBOR Determination Date on the basis of the rate for U.S. dollar deposits for one month that appears on Telerate Screen Page 3750 as of 11:00 a.m. (London time) on such LIBOR Determination Date; provided that the parties hereto acknowledge that One-Month LIBOR for the first Interest Accrual Period shall equal 3.064% per annum. If such rate does not appear on such page (or such other page as may replace that page on that service, or if such service is no longer offered, such other service for displaying One-Month LIBOR or comparable rates as may be reasonably selected by the Securities Administrator), One-Month LIBOR for the applicable Interest Accrual Period will be the Reference Bank Rate. If no such quotations can be obtained by the Securities Administrator and no Reference Bank Rate is available, One-Month LIBOR will be One-Month LIBOR applicable to the preceding Interest Accrual Period. The Securities Administrator’s determination of One-Month LIBOR and the Pass-Through Rate for each Class of Certificates (other than the Class R Certificates and the Class XP Certificates) for any Interest Accrual Period shall, in the absence of manifest error, be final and binding.

Opinion of Counsel: A written opinion of counsel who is or are acceptable to the Trustee (and, if delivered to the Securities Administrator, acceptable to the Securities Administrator) and who, unless required to be Independent (an “Opinion of Independent Counsel”), may be internal counsel for the Company, the Master Servicer or the Depositor.

Optional Termination Date: With respect to the Servicer, the Distribution Date on which the aggregate Scheduled Principal Balance of the Mortgage Loans is less than 10% of the Cut-off Date Balance, and with respect to the Master Servicer, the Distribution Date on which the aggregate Scheduled Principal Balance of the Mortgage Loans is less than 1% of the Cut-off Date Balance.

Original Subordinate Principal Balance: The sum of the aggregate Current Principal Amounts of each Class of Subordinate Certificates as of the Closing Date.

Original Value: The lesser of (i) the Appraised Value or (ii) the sales price of a Mortgaged Property at the time of origination of a Mortgage Loan, except in instances where either clauses (i) or (ii) is unavailable, the other may be used to determine the Original Value, or

if both clauses (i) and (ii) are unavailable, Original Value may be determined from other sources reasonably acceptable to the Depositor.

Outstanding Mortgage Loan: With respect to any Due Date, a Mortgage Loan which, prior to such Due Date, was not the subject of a Principal Prepayment in full, did not become a Liquidated Mortgage Loan and was not purchased or replaced.

Outstanding Principal Balance: As of the time of any determination, the principal balance of a Mortgage Loan remaining to be paid by the Mortgagor, or, in the case of an REO Property, the principal balance of the related Mortgage Loan remaining to be paid by the Mortgagor at the time such property was acquired by the Trust Fund less any Net Liquidation Proceeds with respect thereto to the extent applied to principal.

Pass-Through Rate: As to each Class of Certificates and the REMIC I and REMIC II Regular Interests, the rate of interest determined as provided with respect thereto, in Section 5.01(c). Any monthly calculation of interest at a stated rate for the REMIC I Regular Interests, REMIC II Regular Interest I-X-1, REMIC II Regular Interest I-M-X, the Class I-X-1 Certificates and the Class I-M-X Certificates shall be based upon annual interest at such rate divided by twelve. Any monthly calculation of interest at a stated rate for the Class I-A Certificates or Class I-B Certificates shall be based on a year of 360 days and the actual number of days in the accrual period for which the calculation is being performed.

Paying Agent: The Securities Administrator.

Periodic Rate Cap: With respect to each Mortgage Loan, the maximum adjustment that can be made to the Mortgage Interest Rate on each Interest Adjustment Date in accordance with its terms, regardless of changes in the applicable Index.

Permitted Investments: Any one or more of the following obligations or securities held in the name of the Securities Administrator on behalf of the Trustee for the benefit of the Certificateholders:

(i) direct obligations of, and obligations the timely payment of which are fully guaranteed by the United States of America or any agency or instrumentality of the United States of America the obligations of which are backed by the full faith and credit of the United States of America;

(ii) (a) demand or time deposits, federal funds or bankers’ acceptances issued by any depository institution or trust company incorporated under the laws of the United States of America or any state thereof (including the Trustee or the Master Servicer or their Affiliates acting in its commercial banking capacity) and subject to supervision and examination by federal and/or state banking authorities, provided that the commercial paper and/or the short-term debt rating and/or the long-term unsecured debt obligations of such depository institution or trust company at the time of such investment or contractual commitment providing for such investment have the Applicable Credit Rating or better from each Rating Agency and (b) any other demand or time deposit or certificate of deposit that is fully insured by the Federal Deposit Insurance Corporation;

(iii) repurchase obligations with respect to (a) any security described in clause (i) above or (b) any other security issued or guaranteed by an agency or instrumentality of the United States of America, the obligations of which are backed by the full faith and credit of the United States of America, in either case entered into with a depository institution or trust company (acting as principal) described in clause (ii)(a) above where the Securities Administrator on behalf of the Trustee holds the security therefor;

(iv) securities bearing interest or sold at a discount issued by any corporation (including the Trustee or the Master Servicer or their Affiliates) incorporated under the laws of the United States of America or any state thereof that have the Applicable Credit Rating or better from each Rating Agency at the time of such investment or contractual commitment providing for such investment; provided, however, that securities issued by any particular corporation will not be Permitted Investments to the extent that investments therein will cause the then outstanding principal amount of securities issued by such corporation and held as part of the Trust to exceed 10% of the aggregate Outstanding Principal Balances of all the Mortgage Loans and Permitted Investments held as part of the Trust;

(v) commercial paper (including both non-interest-bearing discount obligations and interest-bearing obligations payable on demand or on a specified date not more than one year after the date of issuance thereof) having the Applicable Credit Rating or better from each Rating Agency at the time of such investment;

(vi) a Reinvestment Agreement issued by any bank, insurance company or other corporation or entity;

(vii) any other demand, money market or time deposit, obligation, security or investment as may be acceptable to each Rating Agency as evidenced in writing by each Rating Agency to the Securities Administrator; and

(viii) any money market or common trust fund having the Applicable Credit Rating or better from each Rating Agency, including any such fund for which the Trustee or the Master Servicer or any affiliate of the Trustee or the Master Servicer acts as a manager or an advisor; provided, however, that no instrument or security shall be a Permitted Investment if such instrument or security evidences a right to receive only interest payments with respect to the obligations underlying such instrument or if such security provides for payment of both principal and interest with a yield to maturity in excess of 120% of the yield to maturity at par or if such instrument or security is purchased at a price greater than par.

Permitted Transferee: Any Person other than a Disqualified Organization or an “electing large partnership” (as defined by Section 775 of the Code).

Person: Any individual, corporation, partnership, joint venture, association, limited liability company, joint-stock company, trust, unincorporated organization or government or any agency or political subdivision thereof.

Physical Certificates: The Residual Certificates and the Private Certificates.

Plan: The meaning specified in Section 5.07(a).

Prepayment Charge: With respect to any Mortgage Loan, the charges or premiums, if any, due in connection with a full or partial prepayment of such Mortgage Loan in accordance with the terms thereof.

Prepayment Charge Loan: Any Mortgage Loan for which a Prepayment Charge may be assessed and to which such Prepayment Charge the Class XP Certificates are entitled, as indicated on the Mortgage Loan Schedule.

Prepayment Interest Shortfalls: With respect to any Distribution Date, for each Mortgage Loan that was the subject of a partial Principal Prepayment or a Principal Prepayment in full during the related Prepayment Period, the amount, if any, by which (i) one month’s interest at the applicable Net Rate on the Scheduled Principal Balance immediately prior to such prepayment or in the case of a partial Principal Prepayment on the amount of such prepayment exceeds (ii) the amount of interest paid or collected in connection with such Principal Prepayment less the sum of (a) any Prepayment Charges and (b) the Servicing Fee.

Prepayment Period: With respect to any Distribution Date, the period that is provided in the Servicing Agreement.

Primary Mortgage Insurance Policy: Any primary mortgage guaranty insurance policy issued in connection with a Mortgage Loan which provides compensation to a Mortgage Note holder in the event of default by the obligor under such Mortgage Note or the related Security Instrument, if any or any replacement policy therefor through the related Interest Accrual Period for such Class relating to a Distribution Date.

Principal Prepayment: Any payment (whether partial or full) or other recovery of principal on a Mortgage Loan which is received in advance of its scheduled Due Date to the extent that it is not accompanied by an amount as to interest representing scheduled interest due on any date or dates in any month or months subsequent to the month of prepayment, including Insurance Proceeds and Repurchase Proceeds, but excluding the principal portion of Net Liquidation Proceeds.

Private Certificates: The Class XP, Class I-B-4, Class I-B-5 and Class I-B-6 Certificates.

Prospectus: The prospectus, dated December 20, 2004, as supplemented by the prospectus supplement dated November 18, 2005, relating to the offering of the Offered Certificates.

Protected Account: An account established and maintained for the benefit of Certificateholders by the Servicer with respect to the Mortgage Loans and with respect to REO Property pursuant to the Servicing Agreement.

QIB: A Qualified Institutional Buyer as defined in Rule 144A promulgated under the Securities Act.

Qualified Insurer: Any insurance company duly qualified as such under the laws of the state or states in which the related Mortgaged Property or Mortgaged Properties is or are located, duly authorized and licensed in such state or states to transact the type of insurance business in which it is engaged and approved as an insurer by the Master Servicer, so long as the claims

paying ability of which is acceptable to the Rating Agencies for pass-through certificates having the same rating as the Certificates rated by the Rating Agencies as of the Closing Date.

Rating Agencies:	Xxxxx’x and S&P.

Realized Loss: Any (i) Bankruptcy Loss or (ii) as to any Liquidated Mortgage Loan, (x) the Outstanding Principal Balance of such Liquidated Mortgage Loan plus accrued and unpaid interest thereon at the Mortgage Interest Rate through the last day of the month of such liquidation, less (y) the related Net Liquidation Proceeds with respect to such Mortgage Loan and the related Mortgage Property. In addition, to the extent the Master Servicer receives Subsequent Recoveries with respect to any Mortgage Loan, the amount of the Realized Loss with respect to that Mortgage Loan will be reduced to the extent such recoveries are applied to reduce the Current Principal Amount of any Class of Certificates on any Distribution Date.

Record Date: For each Class of Offered Certificates (other than the Class X Certificates), and for any Distribution Date, the close of business on the Business Day prior to such Distribution Date. For the Class X Certificates and for any Distribution Date, the close of business on the last Business Day of the month immediately preceding the month in which such Distribution Date occurs.

Reference Bank: A leading bank selected by the Securities Administrator that is engaged in transactions in Eurodollar deposits in the international Eurocurrency market.

Reference Bank Rate: With respect to any Interest Accrual Period, the arithmetic mean, rounded upwards, if necessary, to the nearest whole multiple of 0.03125%, of the offered rates for United States dollar deposits for one month that are quoted by the Reference Banks as of 11:00 a.m., New York City time, on the related interest determination date to prime banks in the London interbank market for a period of one month in amounts approximately equal to the aggregate Current Principal Amount of the Offered Certificates (other than the Class R Certificates) for such Interest Accrual Period, provided that at least two such Reference Banks provide such rate. If fewer than two offered rates appear, the Reference Bank Rate will be the arithmetic mean, rounded upwards, if necessary, to the nearest whole multiple of 0.03125%, of the rates quoted by one or more major banks in New York City, selected by the Securities Administrator, as of 11:00 a.m., New York City time, on such date for loans in U.S. dollars to leading European banks for a period of one month in amounts approximately equal to the aggregate Current Principal Amount of the Offered Certificates (other than the Class R Certificates).

Reinvestment Agreements: One or more reinvestment agreements, acceptable to the Rating Agencies, from a bank, insurance company or other corporation or entity (including the Securities Administrator).

Relief Act: The Servicemembers Civil Relief Act, as amended, or similar state law.

Relief Act Mortgage Loan: Any Mortgage Loan as to which the Scheduled Payment thereof has been reduced due to the application of the Relief Act.

REMIC: A “real estate mortgage investment conduit” within the meaning of Section 860D of the Code.

REMIC Administrator: The Securities Administrator; provided that if the REMIC Administrator is found by a court of competent jurisdiction to no longer be able to fulfill its obligations as REMIC Administrator under this Agreement the Servicer shall appoint a successor REMIC Administrator, subject to assumption of the REMIC Administrator obligations under this Agreement.

REMIC Interest:	Any of the REMIC I Interests and the REMIC II Interests.

REMIC Opinion: An Opinion of Independent Counsel, to the effect that the proposed action described therein would not, under the REMIC Provisions, (i) cause any 2005-AR1 REMIC to fail to qualify as a REMIC while any regular interest in such 2005-AR1 REMIC is outstanding, (ii) result in a tax on prohibited transactions with respect to any 2005-AR1 REMIC or (iii) constitute a taxable contribution to any 2005-AR1 REMIC after the Startup Day.

REMIC Provisions: The provisions of the federal income tax law relating to REMICs, which appear at Sections 860A through 860G of the Code, and related provisions and regulations promulgated thereunder, as the foregoing may be in effect from time to time.

REMIC Regular Interest: Any of the REMIC I Regular Interests and the REMIC II Regular Interests.

REMIC I: The segregated pool of assets, with respect to which a REMIC election is made pursuant to this Agreement, consisting of:

(a) the Mortgage Loans and the related Mortgage Files and collateral securing such Mortgage Loans,

(b) all payments on and collections in respect of the Mortgage Loans due after the Cut-off Date as shall be on deposit in the Distribution Account (other than amounts representing Prepayment Charges in respect of Prepayment Charge Loans) and identified as belonging to the Trust Fund,

(c) property that secured a Mortgage Loan and that has been acquired for the benefit of the Certificateholders by foreclosure or deed in lieu of foreclosure,

(d) the hazard insurance policies and Primary Mortgage Insurance Policy, if any, and

(e) all proceeds of clauses (a) through (d) above.

REMIC I Available Distribution Amount: For any Distribution Date, the Available Funds.

REMIC I Distribution Amount: For any Distribution Date, the REMIC I Available Distribution Amount shall be deemed distributed to REMIC II, as the holder of the REMIC I

Regular Interests, and to Holders of the Class R Certificates in respect of Component I thereof, in the following amounts and priority:

(i) to the extent of the REMIC I Available Distribution Amount, to REMIC II as the holder of REMIC I Regular Interests, pro rata, in an amount equal to (A) the Uncertificated Accrued Interest for each such REMC I Regular Interest for such Distribution Date reduced, in each case, by any Net Deferred Interest allocated to such REMIC I Regular Interest for such Distribution Date, plus (B) any amounts in respect thereof remaining unpaid from previous Distribution Dates; and

(ii) on each Distribution Date, to REMIC II as the holder of the REMIC I Regular Interests, in an amount equal to the remainder of the REMIC I Available Distribution Amount after the distributions made pursuant to clause (i) above, allocated as follows (except as provided below):

(A) in respect of each of the REMIC I Regular Interests, their respective Principal Distribution Amounts;

(B) in respect of REMIC I Regular Interest LT1 any remainder until the Uncertificated Principal Balance thereof is reduced to zero;

(C) any remainder in respect of each of the REMIC I Regular Interests (other than REMIC I Regular Interest LT1), pro rata according to their respective Uncertificated Principal Balances as reduced by the distributions deemed made pursuant to (A) above, until their respective Uncertificated Principal Balances are reduced to zero; and

(iii) any remaining amounts to the Holders of the Class R Certificates in respect of Component I thereof.

REMIC I Interest: The REMIC I Regular Interests and Component I of the Class R Certificates.

REMIC I Net Deferred Interest: REMIC I Net Deferred Interest for any Distribution Date for which Net Deferred Interest is a positive amount shall be an amount equal the sum of Net Deferred Interest for such Distribution Date and the Principal Reduction Amounts for the REMIC I Regular Interests LT2, LT3, LT4, LT6, LT7 and LT8 reduced in each case by Realized Losses to be allocated to such REMIC I Regular Interest on such Distribution Date. REMIC I Net Deferred Interest shall be allocated(A) to REMIC I Regular Interest LT1 in an amount equal to the sum of (i) the amount of Net Deferred Interest allocated to the Senior Certificates and (ii) the excess, if any, of the aggregate of the REMIC I Principal Reduction Amounts for the REMIC I Regular Interests LT2, LT3 and LT4 over the REMIC I Realized Losses allocated to such REMIC I Regular Interests and (B) to REMIC I Regular Interest LT5 in an amount equal to the sum of (i) the amount of Net Deferred Interest allocated to the Subordinate Certificates and (ii) the excess, if any, of the aggregate of the REMIC I Principal Reduction Amounts for the REMIC I Regular Interests LT6, LT7 and LT8 over the REMIC I Realized Losses allocated to such REMIC I Regular Interests.

REMIC I Principal Reduction Amounts: For any Distribution Date, the amounts by which the Uncertificated Principal Balances of the REMIC I Regular Interests will be reduced on such Distribution Date by the allocation of Realized Losses and the distribution of principal, determined as follows:

For purposes of the succeeding formulas the following symbols shall have the meanings set forth below:

Y₁ = the principal balance of REMIC I Regular Interest LT1 after distributions on the prior Distribution Date.

Y₂ = the principal balance of REMIC I Regular Interest LT2 after distributions on the prior Distribution Date.

Y₃ = the principal balance of REMIC I Regular Interest LT3 after distributions on the prior Distribution Date.

Y₄ = the principal balance of REMIC I Regular Interest LT4 after distributions on the prior Distribution Date (note: Y₃ = Y₄).

ΔY₁ = the REMIC I Regular Interest LT1 Principal Reduction Amount.

ΔY₂ = the REMIC I Regular Interest LT2 Principal Reduction Amount.

ΔY₃ = the REMIC I Regular Interest LT3 Principal Reduction Amount.

ΔY₄ = the REMIC I Regular Interest LT4 Principal Reduction Amount.

P₀ = the aggregate principal balance of REMIC I Regular Interests LT1, LT2, LT3 and LT4 after distributions and the allocation of Realized Losses and REMIC I Net Deferred Interest on the prior Distribution Date.

P₁ = the aggregate principal balance of REMIC I Regular Interests LT1, LT2, LT3 and LT4 after distributions and the allocation of Realized Losses and REMIC I Net Deferred Interest to be made on such Distribution Date.

ΔP = P₀ - P₁ = the aggregate of the REMIC I Principal Reduction Amounts for REMIC I Regular Interests LT1, LT2, LT3 and LT4.

= the aggregate of the principal portions of Realized Losses to be allocated to, and the principal distributions to be made on, the Senior Certificates on such Distribution Date (including distributions of accrued and unpaid interest on the Class 1-X-1 Certificates for prior Distributions Dates) minus the portion of Net Deferred Interest for such Distribution Date to be allocated to the Senior Certificates.

R₀ = the Net Rate Cap (stated as a monthly rate) after giving effect to amounts distributed and Realized Losses and Net Deferred Interest allocated on the prior Distribution Date.

R₁ = the Net Rate Cap (stated as a monthly rate) after giving effect to amounts to be distributed and Realized Losses and Net Deferred Interest to be allocated on such Distribution Date.

α = (Y₂ + Y₃)/P₀. The initial value of α on the Closing Date for use on the first Distribution Date shall be 0.0001.

γ₀ = the lesser of (A) the sum for all Classes of Senior Certificates, other than the Class 1-X-1 Certificates, of the product for each Class of (i) the monthly interest rate (as limited by the Net Rate Cap, if applicable) for such Class applicable for distributions to be made on such Distribution Date and (ii) the aggregate Current Principal Amount for such Class after distributions and the allocation of Realized Losses and Net Deferred Interest on the prior Distribution Date and (B) R₀*P₀.

γ₁ = the lesser of (A) the sum for all Classes of Senior Certificates, other than the Class 1-X-1 Certificates, of the product for each Class of (i) the monthly interest rate (as limited by the Net Rate Cap, if applicable) for such Class applicable for distributions to be made on the next succeeding Distribution Date and (ii) the aggregate Current Principal Amount for such Class after distributions and the allocation of Realized Losses and Net Deferred Interest to be made on such Distribution Date and (B) R₁*P₁.

Then, based on the foregoing definitions:

ΔY₁ = ΔP - ΔY₂ - ΔY₃ - ΔY₄;

ΔY₂ = (α/2){( γ₀R₁ - γ₁R₀)/R₀R₁};

ΔY₃ = αΔP - ΔY₂; and

ΔY₄ = ΔY₃.

if both ΔY₂ and ΔY₃, as so determined, are non-negative numbers. Otherwise:

(1) If ΔY₂, as so determined, is negative, then

ΔY₂ = 0;

ΔY₃ = α{γ₁R₀P₀ - γ₀R₁P₁}/{γ₁R₀};

ΔY₄ = ΔY₃; and

ΔY₁ = ΔP - ΔY₂ - ΔY₃ - ΔY₄.

(2) If ΔY₃, as so determined, is negative, then

ΔY₃ = 0;

ΔY₂ = α{γ₀R₁P₁ - γ₁R₀P₀}/{2R₁R₀P₁ - γ₁R₀};

ΔY₄ = ΔY₃; and

ΔY₁ = ΔP - ΔY₂ - ΔY₃ - ΔY₄.

For purposes of the succeeding formulas the following symbols shall have the meanings set forth below:

Y₅ = the principal balance of REMIC I Regular Interest LT5 after distributions on the prior Distribution Date.

Y₆ = the principal balance of REMIC I Regular Interest LT6 after distributions on the prior Distribution Date.

Y₇ = the principal balance of REMIC I Regular Interest LT7 after distributions on the prior Distribution Date.

Y₈ = the principal balance of REMIC I Regular Interest LT8 after distributions on the prior Distribution Date (note: Y₇ = Y₈).

ΔY₅ = the REMIC I Regular Interest LT5 Principal Reduction Amount.

ΔY₆ = the REMIC I Regular Interest LT6 Principal Reduction Amount.

ΔY₇ = the REMIC I Regular Interest LT7 Principal Reduction Amount.

ΔY₈ = the REMIC I Regular Interest LT8 Principal Reduction Amount.

Q₀ = the aggregate principal balance of REMIC I Regular Interests LT5, LT6, LT7 and LT8 after distributions and the allocation of Realized Losses and REMIC I Net Deferred Interest on the prior Distribution Date.

Q₁ = the aggregate principal balance of REMIC I Regular Interests LT5, LT6, LT7 and LT8 after distributions and the allocation of Realized Losses and REMIC I Net Deferred Interest to be made on such Distribution Date.

ΔQ = Q₀ - Q₁ = the aggregate of the REMIC I Principal Reduction Amounts for REMIC I Regular Interests LT5, LT6, LT7 and LT8.

= the aggregate of the principal portions of Realized Losses to be allocated to, and the principal distributions to be made on, the Subordinate Certificates on such Distribution Date (including distributions of accrued and unpaid interest on the Class I-M-X Certificates for prior Distribution Dates) minus the portion of Net Deferred Interest for such Distribution Date to be allocated to the Subordinate Certificates.


S₀ = the Net Rate Cap (stated as a monthly rate) after giving effect to amounts distributed and Realized Losses and Net Deferred Interest allocated on the prior Distribution Date.

S₁ = the Net Rate Cap (stated as a monthly rate) after giving effect to amounts to be distributed and Realized Losses and Net Deferred Interest to be allocated on such Distribution Date.

β = (Y₆ + Y₇)/Q₀. The initial value of β on the Closing Date for use on the first Distribution Date shall be 0.0001.

Γ₀ = the lesser of (A) the sum for all Classes of Subordinate Certificates, other than the Class I-M-X Certificates, of the product for each Class of (i) the monthly interest rate (as limited by the Net Rate Cap, if applicable) for such Class applicable for distributions to be made on such Distribution Date and (ii) the aggregate Current Principal Amount for such Class after distributions and the allocation of Realized Losses and Net Deferred Interest on the prior Distribution Date and (B) S₀*Q₀.

Γ₁ = the lesser of (A) the sum for all Classes of Subordinate Certificates, other than the Class I-M-X Certificates, of the product for each Class of (i) the monthly interest rate (as limited by the Net Rate Cap, if applicable) for such Class applicable for distributions to be made on the next succeeding Distribution Date and (ii) the aggregate Current Principal Amount for such Class after distributions and the allocation of Realized Losses and Net Deferred Interest to be made on such Distribution Date and (B) S₁*Q₁.

Then, based on the foregoing definitions:

ΔY₅ = ΔQ - ΔY₆ - ΔY₇ - ΔY₈;

ΔY₆= (β/2){(Γ₀S₁ - Γ₁S₀)/S₀S₁};

ΔY₇= βΔQ - ΔY₆; and

ΔY₈= ΔY₇.

if both ΔY₆ and ΔY₇, as so determined, are non-negative numbers. Otherwise:

(1) If ΔY₆, as so determined, is negative, then

ΔY₆ = 0;

ΔY₇ = β{Γ₁S₀Q₀ - Γ₀S₁Q₁}/{Γ₁S₀};

ΔY₈ = ΔY₇; and

ΔY₅ = ΔQ - ΔY₆ - ΔY₇ - ΔY₈.

(2) If ΔY₇, as so determined, is negative, then

ΔY₇= 0;

ΔY₆= β{ Γ₀S₁Q₁ - Γ₁S₀Q₀}/{2S₁S₀Q₁ - Γ₁S₀};

ΔY₈= ΔY₇; and

ΔY₅= ΔQ - ΔY₆ – ΔY₇ - ΔY₈.

REMIC I Realized Losses: Realized Losses on Mortgage Loans shall be allocated to the REMIC I Regular Interests as follows: The interest portion of Realized Losses on Mortgage Loans, if any, shall be allocated among each of the REMIC I Regular Interests, pro rata according to the amount of interest accrued but unpaid thereon, in reduction thereof. Any interest portion of such Realized Losses in excess of the amount allocated pursuant to the preceding sentence shall be treated as a principal portion of Realized Losses not attributable to any specific Mortgage Loan and allocated pursuant to the succeeding sentences. The principal portion of Realized Losses that are allocated to the Senior Certificates shall be allocated to the REMIC I Regular Interests as follows: (1) The principal portion of such Realized Losses shall be allocated, first, to each of the REMIC I Regular Interests LT2, LT3 and LT4 pro-rata according to their respective REMIC I Principal Reduction Amounts to the extent thereof in reduction of the Uncertificated Principal Balance of such REMIC I Regular Interests and, second, the remainder, if any, of such principal portion of such Realized Losses shall be allocated to REMIC I Regular Interest LT1 in reduction of the Uncertificated Principal Balance thereof. The principal portion of Realized Losses that are allocated to the Subordinate Certificates shall be allocated to the REMIC I Regular Interests as follows: (1) The principal portion of such Realized Losses shall be allocated, first, to each of the REMIC I Regular Interests LT6, LT7 and LT8 pro-rata according to their respective REMIC I Principal Reduction Amounts to the extent thereof in reduction of the Uncertificated Principal Balance of such REMIC I Regular Interests and, second, the remainder, if any, of such principal portion of such Realized Losses shall be allocated to REMIC I Regular Interest LT5 in reduction of the Uncertificated Principal Balance thereof.

REMIC I Regular Interest: Any of the separate non-certificated beneficial ownership interests in REMIC I set forth in Section 5.01(c) and issued hereunder and designated as a “regular interest” in REMIC I. Each REMIC I Regular Interest shall accrue interest at the Uncertificated Pass-Through Rate specified for such REMIC I Regular Interest in Section 5.01(c), and shall be entitled to distributions of principal, subject to the terms and conditions hereof, in an aggregate amount equal to its initial Uncertificated Principal Balance as set forth in Section 5.01(c). The designations for the respective REMIC I Regular Interests are set forth in Section 5.01(c).

REMIC I Regular Interest LT1 Principal Distribution Amount: For any Distribution Date, the excess, if any, of the REMIC I Regular Interest LT1 Principal Reduction Amount for such Distribution Date over the Realized Losses allocated to the REMIC I Regular Interest LT1 on such Distribution Date.

REMIC I Regular Interest LT2 Principal Distribution Amount: For any Distribution Date, the excess, if any, of the REMIC I Regular Interest LT2 Principal Reduction Amount for such Distribution Date over the Realized Losses allocated to the REMIC I Regular Interest LT2 on such Distribution Date.

REMIC I Regular Interest LT3 Principal Distribution Amount: For any Distribution Date, the excess, if any, of the REMIC I Regular Interest LT3 Principal Reduction Amount for such Distribution Date over the Realized Losses allocated to the REMIC I Regular Interest LT3 on such Distribution Date.

REMIC I Regular Interest LT4 Principal Distribution Amount: For any Distribution Date, the excess, if any, of the REMIC I Regular Interest LT4 Principal Reduction Amount for such Distribution Date over the Realized Losses allocated to the REMIC I Regular Interest LT4 on such Distribution Date.

REMIC I Regular Interest LT5 Principal Distribution Amount: For any Distribution Date, the excess, if any, of the REMIC I Regular Interest LT5 Principal Reduction Amount for such Distribution Date over the Realized Losses allocated to the REMIC I Regular Interest LT5 on such Distribution Date.

REMIC I Regular Interest LT6 Principal Distribution Amount: For any Distribution Date, the excess, if any, of the REMIC I Regular Interest LT6 Principal Reduction Amount for such Distribution Date over the Realized Losses allocated to the REMIC I Regular Interest LT6 on such Distribution Date.

REMIC I Regular Interest LT7 Principal Distribution Amount: For any Distribution Date, the excess, if any, of the REMIC I Regular Interest LT7 Principal Reduction Amount for such Distribution Date over the Realized Losses allocated to the REMIC I Regular Interest LT7 on such Distribution Date.

REMIC I Regular Interest LT8 Principal Distribution Amount: For any Distribution Date, the excess, if any, of the REMIC I Regular Interest LT8 Principal Reduction Amount for such Distribution Date over the Realized Losses allocated to the REMIC I Regular Interest LT8 on such Distribution Date.

REMIC II: That group of assets contained in the Trust Fund designated as a REMIC consisting of the REMIC I Regular Interests and any proceeds thereof.

REMIC II Interests: The REMIC II Regular Interests and Component II of the Class R Certificates.

REMIC II Net Deferred Interest: Net Deferred Interest for any Distribution Date shall be allocated to REMIC II Regular Interests to the same extent that Net Deferred Interest is allocated to the related Class of Certificates.

REMIC II Regular Interest I-X-1: A regular interest in REMIC II that has an initial principal balance equal to zero, that bears interest at the related Uncertificated REMIC II Pass-Through Rate on its Uncertificated Notional Amount, and that has such other terms as are described herein.

REMIC II Regular Interest I-M-X: A regular interest in REMIC II that has an initial principal balance equal to zero, that bears interest at the related Uncertificated REMIC II Pass-Through Rate on its Uncertificated Notional Amount, and that has such other terms as are described herein.

REMIC II Regular Interest: Any of the separate beneficial ownership interests in REMIC II set forth in Section 5.01(c) and issued hereunder and designated as a “regular interest” in REMIC II. Each REMIC II Regular Interest shall accrue interest at the Pass-Through Rate or Uncertificated REMIC II Pass-Through Rate specified for such REMIC II Regular Interest in Section 5.01(c), and shall be entitled to distributions of principal, subject to the terms and conditions hereof, in an aggregate amount equal to its initial Uncertificated Principal Balance as set forth in Section 5.01(c). The designations for the respective REMIC II Regular Interests are set forth in Section 5.01(c).

REO Property: A Mortgaged Property acquired in the name of the Trust, for the benefit of Certificateholders, by foreclosure or deed-in-lieu of foreclosure in connection with a defaulted Mortgage Loan.

Repurchase Price: With respect to any Mortgage Loan (or any property acquired with respect thereto) required to be repurchased by the Seller pursuant to the Mortgage Loan Purchase Agreement or Article II of this Agreement, an amount equal to the sum of, without duplication, (i)(a) 100% of the Outstanding Principal Balance of such Mortgage Loan as of the date of repurchase (or if the related Mortgaged Property was acquired with respect thereto, 100% of the Outstanding Principal Balance at the date of the acquisition), plus (b) accrued but unpaid interest on the Outstanding Principal Balance at the related Mortgage Interest Rate, through and including the last day of the month of repurchase, plus (c) any unreimbursed Monthly Advances and servicing advances payable to the Servicer of the Mortgage Loan or to the Master Servicer and (ii) any costs and damages (if any) incurred by the Trust in connection with any violation of such Mortgage Loan of any predatory or abusive lending laws.

Repurchase Proceeds: The Repurchase Price in connection with any repurchase of a Mortgage Loan by the Seller and any cash deposit in connection with the substitution of a Mortgage Loan.

Request for Release: A request for release in the form attached hereto as Exhibit D.

Required Insurance Policy: With respect to any Mortgage Loan, any insurance policy which is required to be maintained from time to time under this Agreement with respect to such Mortgage Loan.

Residual Certificates: The Class R Certificates.

Responsible Officer: Any officer assigned to the Corporate Trust Office of the Trustee or the Securities Administrator, as the case may be, (or any successor thereto), including any Vice President, Assistant Vice President, Trust Officer, any Assistant Secretary, any trust officer or, with respect to the Trustee, any other officer of the Trustee or the Securities Administrator, as the case may be, customarily performing functions similar to those performed by any of the above designated officers and having direct responsibility for the administration of this Agreement, and any other officer of the Trustee or the Securities Administrator, as the case may be, to whom a matter arising hereunder may be referred.

Rule 144A Certificate: The certificate to be furnished by each purchaser of a Private Certificate (which is also a Physical Certificate) which is a Qualified Institutional Buyer as defined under Rule 144A promulgated under the Securities Act, substantially in the form set forth as Exhibit F-2 hereto.

S&P: Standard & Poor’s, a division of The XxXxxx-Xxxx Companies, Inc., and its successors in interest.

Scheduled Payment: With respect to any Mortgage Loan and any Due Period, the scheduled payment or payments of principal and interest due during such Due Period on such Mortgage Loan which either is payable by a Mortgagor in such Due Period under the related Mortgage Note or, in the case of REO Property, would otherwise have been payable under the related Mortgage Note.

Scheduled Principal: The principal portion of any Scheduled Payment.

Scheduled Principal Balance: With respect to any Mortgage Loan on any Distribution Date, (i) the unpaid principal balance of such Mortgage Loan as of the close of business on the related Due Date (taking account of the principal payment to be made on such Due Date and irrespective of any delinquency in its payment), as specified in the amortization schedule at the time relating thereto (before any adjustment to such amortization schedule by reason of any bankruptcy or similar proceeding occurring after the Cut-off Date (other than a Deficient Valuation) or any moratorium or similar waiver or grace period) including any Deferred Interest thereon and less (ii) any Principal Prepayments (including the principal portion of Net Liquidation Proceeds) received during or prior to the related Prepayment Period; provided that the Scheduled Principal Balance of a Liquidated Mortgage Loan is zero.

Securities Act: The Securities Act of 1933, as amended.

Securities Administrator: Xxxxx Fargo Bank, National Association, in its capacity as paying agent or securities administrator (as applicable) hereunder, or its successor in interest, or any successor securities administrator or paying agent appointed as herein provided.

SECURITIES LEGEND: "THIS CERTIFICATE HAS NOT BEEN AND WILL NOT BE REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE "SECURITIES ACT"), OR UNDER ANY STATE SECURITIES LAWS. THE HOLDER HEREOF, BY PURCHASING THIS CERTIFICATE, AGREES THAT THIS CERTIFICATE

MAY BE REOFFERED, RESOLD, PLEDGED OR OTHERWISE TRANSFERRED ONLY IN COMPLIANCE WITH THE SECURITIES ACT AND OTHER APPLICABLE LAWS AND ONLY (1) PURSUANT TO RULE 144A UNDER THE SECURITIES ACT ("RULE 144A") TO A PERSON THAT THE HOLDER REASONABLY BELIEVES IS A QUALIFIED INSTITUTIONAL BUYER WITHIN THE MEANING OF RULE 144A (A "QIB"), PURCHASING FOR ITS OWN ACCOUNT OR A QIB PURCHASING FOR THE ACCOUNT OF A QIB, WHOM THE HOLDER HAS INFORMED, IN EACH CASE, THAT THE REOFFER, RESALE, PLEDGE OR OTHER TRANSFER IS BEING MADE IN RELIANCE ON RULE 144A OR (2) IN CERTIFICATED FORM TO AN "INSTITUTIONAL ACCREDITED INVESTOR" WITHIN THE MEANING THEREOF IN RULE 501(A)(1), (2), (3) OR (7) OF REGULATION D UNDER THE ACT OR ANY ENTITY IN WHICH ALL OF THE EQUITY OWNERS COME WITHIN SUCH PARAGRAPHS PURCHASING NOT FOR DISTRIBUTION IN VIOLATION OF THE SECURITIES ACT, SUBJECT TO (A) THE RECEIPT BY THE SECURITIES ADMINISTRATOR OF A LETTER SUBSTANTIALLY IN THE FORM PROVIDED IN THE AGREEMENT AND (B) THE RECEIPT BY THE SECURITIES ADMINISTRATOR OF SUCH OTHER EVIDENCE ACCEPTABLE TO THE SECURITIES ADMINISTRATOR THAT SUCH REOFFER, RESALE, PLEDGE OR TRANSFER IS IN COMPLIANCE WITH THE SECURITIES ACT AND OTHER APPLICABLE LAWS OR IN EACH CASE IN ACCORDANCE WITH ALL APPLICABLE SECURITIES LAWS OF THE UNITED STATES AND ANY OTHER APPLICABLE JURISDICTION. THIS CERTIFICATE MAY NOT BE ACQUIRED DIRECTLY OR INDIRECTLY BY, OR ON BEHALF OF, AN EMPLOYEE BENEFIT PLAN OR OTHER RETIREMENT ARRANGEMENT (A "PLAN") THAT IS SUBJECT TO TITLE I OF THE EMPLOYEE RETIREMENT INCOME SECURITY ACT OF 1974, AS AMENDED, AND/OR SECTION 4975 OF THE INTERNAL REVENUE CODE OF 1986, AS AMENDED (THE "CODE"), OR BY A PERSON USING "PLAN ASSETS" OF A PLAN, UNLESS THE PROPOSED TRANSFEREE PROVIDES THE SECURITIES ADMINISTRATOR WITH AN OPINION OF COUNSEL FOR THE BENEFIT OF THE TRUSTEE, MASTER SERVICER AND THE SECURITIES ADMINISTRATOR AND ON WHICH THEY MAY RELY WHICH IS SATISFACTORY TO THE SECURITIES ADMINISTRATOR THAT THE PURCHASE OF THIS CERTIFICATE IS PERMISSIBLE UNDER APPLICABLE LAW, WILL NOT CONSTITUTE OR RESULT IN A NON-EXEMPT PROHIBITED TRANSACTION UNDER SECTION 406 OF THE EMPLOYEE RETIREMENT INCOME SECURITY ACT OF 1974, AS AMENDED, OR SECTION 4975 OF THE CODE AND WILL NOT SUBJECT THE MASTER SERVICER, THE TRUSTEE OR THE SECURITIES ADMINISTRATOR TO ANY OBLIGATION OR LIABILITY IN ADDITION TO THOSE UNDERTAKEN IN THE AGREEMENT.

Security Instrument: A written instrument creating a valid first lien on a Mortgaged Property securing a Mortgage Note, which may be any applicable form of mortgage, deed of trust, deed to secure debt or security deed, including any riders or addenda thereto.

Seller: MortgageIT, as mortgage loan seller under the Mortgage Loan Purchase Agreement.

Senior Certificates: The Class I-A Certificates and the Class I-X-1 Certificates.

Senior Optimal Principal Amount: With respect to each Distribution Date, an amount equal to the sum, without duplication, of the following (after giving effect to the application of such amounts to cover Deferred Interest on the Mortgage Loans on such Distribution Date in accordance with the definition of Net Deferred Interest but in no event greater than the aggregate Current Principal Amounts immediately prior to such Distribution Date):

(i) the Senior Percentage of the principal portion of all Scheduled Payments due on each Outstanding Mortgage Loan on the related Due Date as specified in the amortization schedule at the time applicable thereto (after adjustments for previous Principal Prepayments but before any adjustment to such amortization schedule by reason of any bankruptcy or similar proceeding or any moratorium or similar waiver or grace period if the related Distribution Date occurs prior to the Cross-Over Date);

(ii) the Senior Prepayment Percentage of the Scheduled Principal Balance of Mortgage Loan which was the subject of a Principal Prepayment in full received by the Master Servicer during the related Prepayment Period;

(iii) the Senior Prepayment Percentage of amount of all Principal Prepayments in part allocated to principal received by the Master Servicer during the related Prepayment Period in respect to each Mortgage Loan;

(iv) the lesser of (a) the Senior Prepayment Percentage of the sum of (A) all Net Liquidation Proceeds allocable to principal received in respect of each Mortgage Loan that became a Liquidated Mortgage Loan during the related Prepayment Period (other than Mortgage Loans described in the immediately following clause (B)) and all Subsequent Recoveries received in respect of each Liquidated Mortgage Loan during the related Due Period and (B) the Scheduled Principal Balance of each such Mortgage Loan purchased by an insurer from the Trust during the related Prepayment Period pursuant to the related Primary Mortgage Insurance Policy, if any, or otherwise and (b) the Senior Percentage of the sum of (A) the Scheduled Principal Balance of each Mortgage Loan which became a Liquidated Mortgage Loan during the related Prepayment Period (other than the Mortgage Loans described in the immediately following clause (B)) and all Subsequent Recoveries received in respect of each Liquidated Mortgage Loan during the related Due Period and (B) the Scheduled Principal Balance of each such Mortgage Loan that was purchased by an insurer from the Trust during the related Prepayment Period pursuant to the related Primary Mortgage Insurance Policy, if any or otherwise; and

(v) the Senior Prepayment Percentage of the sum of (a) the Scheduled Principal Balance of each Mortgage Loan that was repurchased by the Seller in connection with such Distribution Date and (b) the excess, if any, of the Scheduled Principal Balance of a Mortgage Loan that has been replaced by the Seller with a substitute Mortgage Loan pursuant to the Mortgage Loan Purchase Agreement in connection with such Distribution Date over the Scheduled Principal Balance of such substitute Mortgage Loan.

Senior Percentage: Initially 90.95%. With respect to any Distribution Date, the lesser of (i) 100% and (ii) the percentage obtained by dividing the aggregate Current Principal Amount of the Senior Certificates immediately preceding such Distribution Date by the aggregate Scheduled Principal Balance of the Mortgage Loans as of the beginning of the related Due Period.

Senior Prepayment Percentage: With respect to any Distribution Date occurring during the periods set forth below, as follows:

Period (dates inclusive)	Senior Prepayment Percentage

December 2005 - November 2015	100%

December 2015 – November 2016	Senior Percentage plus 70% of the Subordinate Percentage.
December 2016 - November 2017	Senior Percentage plus 60% of the Subordinate Percentage.
December 2017 - November 2018	Senior Percentage plus 40% of the Subordinate Percentage.
December 2018 - November 2019	Senior Percentage plus 20% of the Subordinate Percentage.
December 2019 and thereafter	Senior Percentage.

In addition, no reduction of the Senior Prepayment Percentage shall occur on any Distribution Date unless, as of the last day of the month preceding such Distribution Date, (A) the aggregate Scheduled Principal Balance of the Mortgage Loans delinquent 60 days or more (including for this purpose any such Mortgage Loans in foreclosure and Mortgage Loans with respect to which the related Mortgaged Property has been acquired by the Trust), averaged over the last six months, as a percentage of the sum of the aggregate Current Principal Amount of the Subordinate Certificates does not exceed 50%; and (B) cumulative Realized Losses on the Mortgage Loans do not exceed (a) 30% of the Original Subordinate Principal Balance if such Distribution Date occurs between and including December 2015 and November 2016, (b) 35% of the Original Subordinate Principal Balance if such Distribution Date occurs between and including December 2016 and November 2017, (c) 40% of the Original Subordinate Principal Balance if such Distribution Date occurs between and including December 2017 and November 2018, (d) 45% of the Original Subordinate Principal Balance if such Distribution Date occurs between and including December 2018 and November 2019, and (e) 50% of the Original Subordinate Principal Balance if such Distribution Date occurs during or after December 2019.

In addition, if on any Distribution Date the Subordinate Percentage for such Distribution Date is equal to or greater than two times the initial Subordinate Percentage, and (a) the aggregate Scheduled Principal Balance of the Mortgage Loans delinquent 60 days or more (including for this purpose any such Mortgage Loans in foreclosure and such Mortgage Loans with respect to which the related Mortgaged Property has been acquired by the Trust), averaged over the last six months, as a percentage of the aggregate Current Principal Amount of the Subordinate Certificates does not exceed 50% and (b)(i) on or prior to the Distribution Date in November 2008, cumulative Realized Losses on the Mortgage Loans as of the end of the related Prepayment Period do not exceed 20% of the Original Subordinate Principal Balance and (ii) after the Distribution Date in November 2008 cumulative Realized Losses on the Mortgage Loans as of the end of the related Prepayment Period do not exceed 30% of the Original Subordinate Principal Balance, then, the Senior Prepayment Percentage for such Distribution Date will equal the Senior Percentage; provided, however, if on such Distribution Date the Subordinate Percentage is equal to or greater than two times the initial Subordinate Percentage

on or prior to the Distribution Date occurring in November 2008 and the above delinquency and loss tests are met, then the Senior Prepayment Percentage for such Distribution Date will equal the Senior Percentage plus 50% of the Subordinate Percentage.

Notwithstanding the foregoing, if on any Distribution Date the percentage, the numerator of which is the aggregate Current Principal Amount of the Senior Certificates immediately preceding such Distribution Date, and the denominator of which is the Scheduled Principal Balance of the Mortgage Loans as of the beginning of the related Due Period, exceeds such percentage as of the Cut-Off Date, the Senior Prepayment Percentage with respect to all Senior Certificates for such Distribution Date will equal 100%.

Servicer: MortgageIT, in its capacity as servicer under the Servicing Agreement.

Servicer Remittance Date: With respect to each Mortgage Loan, the date set forth in the Servicing Agreement.

Servicing Agreement: The Servicing Agreement, dated November 1, 2005 among the Master Servicer, the Trustee, the Seller and the Servicer, attached hereto as Exhibit H-1.

Servicing Fee: As to any Mortgage Loan and Distribution Date, an amount equal to the product of (i) the Scheduled Principal Balance of such Mortgage Loan as of the Due Date in the preceding calendar month and (ii) the Servicing Fee Rate.

Servicing Fee Rate: As to any Mortgage Loan, a per annum rate as set forth in the Mortgage Loan Schedule.

Servicing Officer: The President or a Vice President or Assistant Vice President or other authorized officer of the Master Servicer having direct responsibility for the administration of this Agreement, and any other authorized officer of the Master Servicer to whom a matter arising hereunder may be referred.

Startup Day: November 21, 2005.

Subordinate Certificate Writedown Amount: With respect to the Subordinate Certificates and as to any Distribution Date, the amount by which (i) the sum of the Current Principal Amounts of the Certificates (after giving effect to the distribution of principal and the allocation of applicable Realized Losses in reduction of the Current Principal Amounts of the Certificates on such Distribution Date in accordance with the definition of Net Deferred Interest) exceeds (y) the aggregate Scheduled Principal Balances of the Mortgage Loans on the Due Date related to such Distribution Date.

Subordinate Certificates: The Non-Offered Subordinate Certificates (other than the Class XP Certificates) and the Offered Subordinate Certificates.

Subordinate Optimal Principal Amount: With respect to the Subordinate Certificates and any Distribution Date, an amount equal to the sum, without duplication, of the following (after giving effect to the application of such amounts to cover Deferred Interest on the Mortgage

Loans on such Distribution Date but in no event greater than the aggregate Current Principal Amount of the Subordinate Certificates immediately prior to such Distribution Date):

(i) the Subordinate Percentage of the principal portion of all Scheduled Payments due on each Outstanding Mortgage Loan on the related Due Date as specified in the amortization schedule at the time applicable thereto (after adjustment for previous Principal Prepayments but before any adjustment to such amortization schedule by reason of any bankruptcy or similar proceeding or any moratorium or similar waiver or grace period);

(ii) the Subordinate Prepayment Percentage of the Scheduled Principal Balance of each Mortgage Loan that was the subject of a Principal Prepayment in full received by the Master Servicer during the related Prepayment Period;

(iii) the Subordinate Prepayment Percentage of the amount of all Principal Prepayments in part received by the Master Servicer in respect to the Mortgage Loan during the related Prepayment Period;

(iv) the excess, if any, of (a) all Net Liquidation Proceeds allocable to principal received during the related Prepayment Period in respect of each Liquidated Mortgage Loan and all Subsequent Recoveries received in respect of each Liquidated Mortgage Loan during the related Due Period over (b) the sum of the amounts distributable to the Senior Certificates pursuant to clause (iv) of the definition of Senior Optimal Principal Amount on such Distribution Date;

(v) the Subordinate Prepayment Percentage of the sum of (a) the Scheduled Principal Balance of each Mortgage Loan that was purchased by the Seller in connection with such Distribution Date and (b) the difference, if any, between the Scheduled Principal Balance of a Mortgage Loan that has been replaced by the Seller with a Substitute Mortgage Loan pursuant to the Mortgage Loan Purchase Agreement in connection with such Distribution Date over the Scheduled Principal Balance of such Substitute Mortgage Loan; and

(vi) on the Distribution Date on which the Current Principal Amounts of the Senior Certificates have all been reduced to zero, 100% of the Senior Optimal Principal Amount. After the aggregate Current Principal Amount of the Subordinate Certificates has been reduced to zero, the Subordinate Optimal Principal Amount shall be zero.

Subordinate Percentage: With respect to any Distribution Date, 100% minus the Senior Percentage as of such Distribution Date.

Subordinate Prepayment Percentage: With respect to any Distribution Date, 100% minus the Senior Prepayment Percentage as of such Distribution Date.

Subsequent Recoveries: As of any Distribution Date, amounts received during the related Due Period by the Master Servicer (net of any related expenses permitted to be reimbursed pursuant to Section 4.03) or surplus amounts held by the Master Servicer to cover estimated expenses (including, but not limited to, recoveries in respect of the representations and warranties made by the Seller pursuant to the Mortgage Loan Purchase Agreement) specifically related to a Liquidated Mortgage Loan or the disposition of an REO Property prior to the related Prepayment Period that resulted in a Realized Loss, after liquidation or disposition of such Mortgage Loan.

Subservicer: GMACM, it is capacity as subservicer under the Subservicing Agreement.

Subservicing Agreement: The Subservicing Agreement, dated November 1, 2005 between the Servicer and the Subservicer, attached hereto as Exhibit H-2.

Substitute Mortgage Loan: A mortgage loan tendered to the Trust pursuant to the Servicing Agreement, the Mortgage Loan Purchase Agreement or Section 2.04 of this Agreement, as applicable, in each case, (i) which has an Outstanding Principal Balance not greater nor materially less than the Mortgage Loan for which it is to be substituted; (ii) which has a Mortgage Interest Rate and Net Rate not less than, and not materially greater than, such Mortgage Loan; (iii) other than with respect to the Mortgage Loans listed on Exhibit C attached hereto,] which has a maturity date not materially earlier or later than such Mortgage Loan and not later than the latest maturity date of any Mortgage Loan; (iv) which is of the same property type and occupancy type as such Mortgage Loan; (v) which has a Loan-to-Value Ratio not greater than the Loan-to-Value Ratio of such Mortgage Loan; (vi) which is current in

payment of principal and interest as of the date of substitution; (vii) as to which the payment terms do not vary in any material respect from the payment terms of the Mortgage Loan for which it is to be substituted, (viii) which has a Gross Margin, Periodic Rate Cap and Maximum Lifetime Mortgage Rate no less than those of such Mortgage Loan, has the same Index and interval between Interest Adjustment Dates as such Mortgage Loan, and a Minimum Lifetime Mortgage Rate no lower than that of such Mortgage Loan and (ix) has a negative amortization cap that is no higher than the negative amortization cap of the Mortgage Loan for which it is to be substituted.

Substitution Adjustment Amount: The amount, if any, required to be paid by the Seller to the Securities Administrator for deposit in the Distribution Account pursuant to Section 2.04 in connection with the substitution of a Mortgage Loan.

Tax Administration and Tax Matters Person: The Securities Administrator and any successor thereto or assignee thereof shall serve as tax administrator hereunder and as agent for the Tax Matters Person. The Holder of the largest percentage interest of each Class of Residual Certificates shall be the Tax Matters Person for the related REMIC, as more particularly set forth in Section 9.12 hereof.

Termination Purchase Price: The price, calculated as set forth in Section 10.01, to be paid in connection with the repurchase of the Mortgage Loans pursuant to Section 10.01.

Trust Fund or Trust: The corpus of the trust created by this Agreement, consisting of the Mortgage Loans and the other assets described in Section 2.01(a).

Trustee: Deutsche Bank National Trust Company, or its successor in interest, or any successor trustee appointed as herein provided.

2005-AR1 REMIC: Either of REMIC I and REMIC II.

Uncertificated Accrued Interest: With respect to any Uncertificated Regular Interest for any Distribution Date, one month’s interest at the related Uncertificated Pass-Through Rate for such Distribution Date, accrued on the Uncertificated Principal Balance or Uncertificated Notional Amount, as applicable, immediately prior to such Distribution Date. Uncertificated Accrued Interest for the Uncertificated Regular Interests shall accrue on the basis of a 360-day year consisting of twelve 30-day months. For purposes of calculating the amount of Uncertificated Accrued Interest for the REMIC I Regular Interests for any Distribution Date, any Prepayment Interest Shortfalls and Relief Act Shortfalls (to the extent not covered by Compensating Interest Payments) shall be allocated among each of the REMIC I Regular Interests, pro rata, based on, and to the extent of, Uncertificated Accrued Interest, as calculated without application of this sentence. For purposes of calculating the amount of Uncertificated Accrued Interest for the REMIC II Regular Interests for any Distribution Date, any Prepayment Interest Shortfalls and Relief Act Shortfalls (to the extent not covered by Compensating Interest Payments) shall be allocated among REMIC II Regular Interests to the same extent such amounts are allocated to the related Class of Certificates.

Uncertificated Notional Amount: With respect to REMIC II Regular Interest I-X-1, the aggregate principal balance of REMIC I Regular Interests LT1, LT2, LT3 and LT4. With

respect to REMIC II Regular Interest I-M-X, the aggregate principal balance of REMIC I Regular Interests LT5, LT6, LT7 and LT8.

Uncertificated Pass-Through Rate: The Uncertificated REMIC I Pass-Through Rate or the Uncertificated REMIC II Pass-Through Rate, as applicable.

Uncertificated Principal Balance: The principal amount of any Uncertificated Regular Interest outstanding as of any date of determination. The Uncertificated Principal Balance of each REMIC Regular Interest shall never be less than zero.

Uncertificated Regular Interests: The REMIC I Regular Interests, REMIC II Regular Interest I-X-1 and REMIC II Regular Interest I-M-X.

Uncertificated REMIC I Pass-Through Rate: With respect to any Distribution Date and: (A) (i) REMIC I Regular Interests LT1 and LT2, the Net Rate Cap, (ii) REMIC I Regular Interest LT3, zero (0.00%), (iii) REMIC I Regular Interest LT4, twice the Net Rate Cap; and (B) (i) REMIC I Regular Interests LT5 and LT6, the Net Rate Cap, (ii) REMIC I Regular Interest LT7, zero (0.00%), and (iii) REMIC I Regular Interest LT8, twice the Net Rate Cap.

Uncertificated REMIC II Pass-Through Rate: The Pass-Through Rate for REMIC II Regular Interest I-X-1 or REMIC II Regular Interest I-M-X, as applicable.

Uninsured Cause: Any cause of damage to a Mortgaged Property or related REO Property such that the complete restoration of such Mortgaged Property or related REO Property is not fully reimbursable by the hazard insurance policies required to be maintained pursuant the Servicing Agreement, without regard to whether or not such policy is maintained.

United States Person: A citizen or resident of the United States, a corporation or partnership (including an entity treated as a corporation or partnership for federal income tax purposes) created or organized in, or under the laws of, the United States or any state thereof or the District of Columbia (except, in the case of a partnership, to the extent provided in regulations), provided that, for purposes solely of the Class R Certificates, no partnership or other entity treated as a partnership for United States federal income tax purposes shall be treated as a United States Person unless all persons that own an interest in such partnership either directly or through any entity that is not a corporation for United States federal income tax purposes are United States Persons, or an estate whose income is subject to United States federal income tax regardless of its source, or a trust if a court within the United States is able to exercise primary supervision over the administration of the trust and one or more such United States Persons have the authority to control all substantial decisions of the trust. To the extent prescribed in regulations by the Secretary of the Treasury, which have not yet been issued, a trust which was in existence on August 20, 1996 (other than a trust treated as owned by the grantor under subpart E of part I of subchapter J of chapter 1 of the Code), and which was treated as a United States person on August 20, 1996 may elect to continue to be treated as a United States person notwithstanding the previous sentence.

ARTICLE II

CONVEYANCE OF MORTGAGE LOANS;

ORIGINAL ISSUANCE OF CERTIFICATES

Section 2.01 Conveyance of Mortgage Loans to Trustee. (a) The Depositor concurrently with the execution and delivery of this Agreement sells, transfers and assigns to the Trust without recourse all its right, title and interest in and to (i) the Mortgage Loans identified in the Mortgage Loan Schedule, including all interest due and principal received with respect to the Mortgage Loans after the Cut-off Date, but excluding any payments of interest due on or prior to the Cut-off Date; (ii) such assets relating to the Mortgage Loans as from time to time may be held by the Servicer in the Protected Account and the Securities Administrator in the Distribution Account, (iii) any REO Property, (iv) the Required Insurance Policies and any amounts paid or payable by the insurer under any Insurance Policy (to the extent the mortgagee has a claim thereto), (v) the Mortgage Loan Purchase Agreement to the extent provided in Section 2.03(a), (vi) the rights with respect to the Servicing Agreement as assigned to the Trustee on behalf of the Certificateholders herein, (vii) the Class R Deposit, (viii) such assets as shall from time to time be credited or are required by the terms of this Agreement to be credited to any of the Accounts and (ix) any proceeds of the foregoing. Although it is the intent of the parties to this Agreement that the conveyance of the Depositor’s right, title and interest in and to the Mortgage Loans and other assets in the Trust Fund pursuant to this Agreement shall constitute a purchase and sale and not a loan, in the event that such conveyance is deemed to be a loan, it is the intent of the parties to this Agreement that the Depositor shall be deemed to have granted to the Trustee a first priority perfected security interest in all of the Depositor’s right, title and interest in, to and under the Mortgage Loans and other assets in the Trust Fund, and that this Agreement shall constitute a security agreement under applicable law.

(b) In connection with the above transfer and assignment, the Seller hereby deposits with the Trustee or the Custodian, as its agent, with respect to each Mortgage Loan:

(i) the original Mortgage Note, endorsed without recourse (A) to the order of the Trustee or (B) in blank, and in each case showing an unbroken chain of endorsements from the originator thereof to the Person endorsing it to the Trustee, or lost note affidavit together with a copy of the related Mortgage Note,

(ii) the original Mortgage and, if the related Mortgage Loan is a MOM Loan, noting the presence of the MIN and language indicating that such Mortgage Loan is a MOM Loan, which shall have been recorded (or if the original is not available, a copy), with evidence of such recording indicated thereon (or if clause (w) in the proviso below applies, shall be in recordable form),

(iii) unless the Mortgage Loan is a MOM Loan, a certified copy of the assignment (which may be in the form of a blanket assignment if permitted in the jurisdiction in which the Mortgaged Property is located) to “Deutsche Bank National Trust Company, as Trustee”, with evidence of recording with respect to each Mortgage Loan or in blank (or if clause (w) in the proviso below applies or for Mortgage Loans with respect to which the related Mortgaged Property is located in a state other than Maryland, Tennessee, South Carolina,

Mississippi and Florida, or an Opinion of Counsel has been provided as set forth in this Section 2.01(b), shall be in recordable form),

(iv) all intervening assignments of the Security Instrument, if applicable and only to the extent available to the Depositor with evidence of recording thereon,

(v) the original or a copy of the policy or certificate of primary mortgage guaranty insurance, to the extent available, if any,

(vi) the original policy of title insurance or mortgagee’s certificate of title insurance or commitment or binder for title insurance, and

(vii) originals of all modification agreements, if applicable and available.

provided, however, that in lieu of the foregoing, the Depositor may deliver the following documents, under the circumstances set forth below: (w) in lieu of the original Security Instrument, assignments to the Trustee or intervening assignments thereof which have been delivered, are being delivered or will, upon receipt of recording information relating to the Security Instrument required to be included thereon, be delivered to recording offices for recording and have not been returned to the Depositor in time to permit their delivery as specified above, the Depositor may deliver a true copy thereof; (x) in lieu of the Security Instrument, assignment to the Trustee or intervening assignments thereof, if the applicable jurisdiction retains the originals of such documents (as evidenced by a certification from the Depositor to such effect) the Depositor may deliver photocopies of such documents containing an original certification by the judicial or other governmental authority of the jurisdiction where such documents were recorded; and (y) the Depositor shall not be required to deliver intervening assignments or Mortgage Note endorsements between the Seller and the Depositor, and between the Depositor and the Trustee; and provided, further, however, that in the case of Mortgage Loans which have been prepaid in full after the Cut-off Date and prior to the Closing Date, the Depositor, in lieu of delivering the above documents, may deliver to the Trustee or the Custodian, as its agent, a certification to such effect and shall deposit all amounts paid in respect of such Mortgage Loans in the Distribution Account on the Closing Date. The Depositor shall deliver such original documents (including any original documents as to which certified copies had previously been delivered) to the Trustee or the Custodian promptly after they are received. The Depositor shall cause the Seller, at its expense, to cause each assignment of the Security Instrument to the Trustee to be recorded not later than 180 days after the Closing Date, unless (a) such recordation is not required by the Rating Agencies or an Opinion of Counsel addressed to the Trustee has been provided to the Trustee (with a copy to the Custodian) which states that recordation of such Security Instrument is not required to protect the interests of the Certificateholders in the related Mortgage Loans or (b) MERS is identified on the Mortgage or on a properly recorded assignment of the Mortgage as the mortgagee of record solely as nominee for the Seller and its successor and assigns; provided, however, that each assignment shall be submitted for recording by the Seller in the manner described above, at no expense to the Trust or the Trustee or the Custodian upon the earliest to occur of: (i) reasonable direction by the Holders of Certificates evidencing Fractional Undivided Interests aggregating not less than 25% of the Trust, (ii) the occurrence of an Event of Default, (iii) the occurrence of a bankruptcy,

insolvency or foreclosure relating to the Seller and (iv) the occurrence of a servicing transfer as described in Section 8.02 hereof. Notwithstanding the foregoing, if the Seller fails to pay the cost of recording the assignments, such expense will be paid by the Securities Administrator from the Trust Fund.

(c) The Depositor hereby directs the Securities Administrator to enter into and execute the Corridor Contract and Servicing Agreement and make all representations and warranties contained therein and perform all obligations of the Securities Administrator thereunder. The Securities Administrator hereby acknowledges receipt by it of the Corridor Contract and Servicing Agreement.

Section 2.02 Acceptance of Mortgage Loans by Trustee. (a) The Trustee (on behalf of the Trust) acknowledges the sale, transfer and assignment of the Trust Fund to it by the Depositor and receipt of, subject to further review and the exceptions which may be noted pursuant to the procedures described below, and declares that it holds, the documents (or certified copies thereof) delivered to it or the Custodian pursuant to Section 2.01, and declares that it will continue to hold those documents and any amendments, replacements or supplements thereto and all other assets of the Trust Fund delivered to it as Trustee in trust for the use and benefit of all present and future Holders of the Certificates. On the Closing Date, with respect to the Mortgage Loans, the Custodian shall acknowledge with respect to each Mortgage Loan by delivery to the Depositor and the Trustee of an Initial Certification receipt of the Mortgage File, but without review of such Mortgage File, except to the extent necessary to confirm that such Mortgage File contains the related Mortgage Note or lost note affidavit. No later than 90 days after the Closing Date (or with respect to any Substitute Mortgage Loan, within five Business Days after the receipt by the Trustee or Custodian thereof), the Trustee agrees, for the benefit of the Certificateholders, to review or cause to be reviewed by the Custodian on its behalf (under the Custodial Agreement), each Mortgage File delivered to it and to execute and deliver, or cause to be executed and delivered, to the Depositor and the Trustee an Interim Certification. In conducting such review, the Trustee or Custodian will ascertain whether all required documents under Section 2.01(b)(i) through (iii) and (vi) have been executed and received, and based on the Mortgage Loan Schedule, whether those documents relate, determined on the basis of the Mortgagor name, original principal balance and loan number, to the Mortgage Loans it has received, as identified in the Mortgage Loan Schedule. In performing any such review, the Trustee or the Custodian may conclusively rely on the purported due execution and genuineness of any such document and on the purported genuineness of any signature thereon. If the Trustee or the Custodian finds any document constituting part of the Mortgage File has not been executed or received, or to be unrelated, determined on the basis of the Mortgagor name, original principal balance and loan number, to the Mortgage Loans identified in Exhibit B, or does not conform with the review criteria set forth in this Section 2.02 (a “Material Defect”), the Trustee or the Custodian, as its agent, shall promptly notify the Seller. In accordance with the Mortgage Loan Purchase Agreement, the Seller shall correct or cure any such defect within ninety (90) days from the date of notice from the Trustee or the Custodian, as its agent, of the defect and if the Seller fails to correct or cure the defect within such period, and such defect materially and adversely affects the interests of the Certificateholders in the related Mortgage Loan, the Trustee or the Custodian, as its agent, shall enforce the Seller’s obligation pursuant to the Mortgage Loan Purchase Agreement within 90 days from the Trustee’s or the Custodian’s notification, to purchase such Mortgage Loan at the Repurchase Price; provided that, if such defect would cause

the Mortgage Loan to be other than a “qualified mortgage” as defined in Section 860G(a)(3)(A) of the Code and Treasury Regulation Section 1.860G-2(a)(1), (2), (4), (5), (6), (7) and (9), without reliance on the provisions of Treasury Regulation Section 1.860G-2(a)(3) or Treasury Regulation Section 1.860G-2(f)(2) or any other provision that would allow a Mortgage Loan to be treated as a "qualified mortgage" notwithstanding its failure to meet the requirements of Section 860G(a)(3)(A) of the Code and Treasury Regulation Section 1.860G-2(a)(1), (2), (4), (5), (6), (7) and (9), any such cure or repurchase must occur within 90 days from the date such breach was discovered; provided, however, that if such defect relates solely to the inability of the Seller to deliver the original Security Instrument or intervening assignments thereof, or a certified copy because the originals of such documents, or a certified copy have not been returned by the applicable jurisdiction, the Seller shall not be required to purchase such Mortgage Loan if the Seller delivers such original documents or certified copy promptly upon receipt, but in no event later than 360 days after the Closing Date. The foregoing repurchase obligation shall not apply in the event that the Seller cannot deliver such original or copy of any document submitted for recording to the appropriate recording office in the applicable jurisdiction because such document has not been returned by such office; provided that the Seller shall instead deliver a recording receipt of such recording office or, if such receipt is not available, a certificate confirming that such documents have been accepted for recording, and delivery to the Trustee or the Custodian shall be effected by the Seller within thirty days of its receipt of the original recorded document.

(b) No later than 180 days after the Closing Date (or with respect to any Substitute Mortgage Loan, within five Business Days after the receipt by the Trustee or the Custodian thereof), the Trustee or the Custodian will review, for the benefit of the Certificateholders, the Mortgage Files delivered to it and will execute and deliver or cause to be executed and delivered to the Depositor and the Trustee a Final Certification. In conducting such review, the Trustee or the Custodian will ascertain whether an original of each document required to be recorded has been returned from the recording office with evidence of recording thereon or a certified copy has been obtained from the recording office. If the Trustee or the Custodian, as its agent, finds a Material Defect, the Trustee or the Custodian shall promptly notify the Seller (provided, however, that with respect to those documents described in Sections 2.01(b)(iv), (v) and (vii), the Trustee’s and Custodian’s obligations shall extend only to the documents actually delivered to the Trustee or the Custodian pursuant to such Sections). In accordance with the Mortgage Loan Purchase Agreement, the Seller shall correct or cure any such defect within 90 days from the date of notice from the Trustee or the Custodian of the Material Defect and if the Seller is unable to cure such defect within such period, and if such defect materially and adversely affects the interests of the Certificateholders in the related Mortgage Loan, the Trustee shall enforce the Seller’s obligation under the Mortgage Loan Purchase Agreement to provide a Substitute Mortgage Loan (if within two years of the Closing Date) or purchase such Mortgage Loan at the Repurchase Price; provided, however, that if such defect would cause the Mortgage Loan to be other than a “qualified mortgage” as defined in Section 860G(a)(3)(A) of the Code and Treasury Regulation Section 1.860G-2(a)(1), (2), (4), (5), (6), (7) and (9), without reliance on the provisions of Treasury Regulation Section 1.860G-2(a)(3) or Treasury Regulation Section 1.860G-2(f)(2) or any other provision that would allow a Mortgage Loan to be treated as a "qualified mortgage" notwithstanding its failure to meet the requirements of Section 860G(a)(3)(A) of the Code and Treasury Regulation Section 1.860G-2(a)(1), (2), (4), (5), (6), (7) and (9), any such cure, repurchase or substitution must occur within 90 days from the date such breach was discovered; provided, further, that if such defect relates solely to the inability of the Seller to deliver the original Security Instrument or intervening

assignments thereof, or a certified copy, because the originals of such documents or a certified copy, have not been returned by the applicable jurisdiction, the Seller shall not be required to purchase such Mortgage Loan, if the Seller delivers such original documents or certified copy promptly upon receipt, but in no event later than 360 days after the Closing Date. The foregoing repurchase obligation shall not apply in the event that the Seller cannot deliver such original or copy of any document submitted for recording to the appropriate recording office in the applicable jurisdiction because such document has not been returned by such office; provided that the Seller shall instead deliver a recording receipt of such recording office or, if such receipt is not available, a certificate confirming that such documents have been accepted for recording, and delivery to the Trustee or the Custodian shall be effected by the Seller within thirty days of its receipt of the original recorded document.

(c) In the event that a Mortgage Loan is purchased by the Seller in accordance with Sections 2.02(a) or (b) above, the Seller shall remit to the Master Servicer the Repurchase Price for deposit in the Distribution Account and the Seller shall provide to the Securities Administrator written notification detailing the components of the Repurchase Price. Upon deposit of the Repurchase Price in the Distribution Account, the Depositor shall notify the Trustee and the Custodian (upon receipt of a Request for Release in the form of Exhibit D attached hereto with respect to such Mortgage Loan certifying that the Repurchase Price has been remitted to the Master Servicer for deposit in the Distribution Account), shall release to the Seller the related Mortgage File and the Trustee shall execute and deliver all instruments of transfer or assignment, without recourse, representation or warranty, furnished to it by the Seller, as are necessary to vest in the Seller title to and rights under the Mortgage Loan. Such purchase shall be deemed to have occurred on the date on which the Repurchase Price in available funds is received by the Securities Administrator. The Master Servicer shall amend the Mortgage Loan Schedule, which was previously delivered to it by the Depositor in a form agreed to between the Depositor and the Master Servicer, to reflect such repurchase and shall promptly notify the Trustee and the Rating Agencies of such amendment. The obligation of the Seller to repurchase any Mortgage Loan as to which such a defect in a constituent document exists shall be the sole remedy respecting such defect available to the Certificateholders or to the Trustee on their behalf.

Section 2.03 Assignment of Interest in the Mortgage Loan Purchase Agreement. (a) The Depositor hereby assigns to the Trustee, on behalf of Trust for the benefit of the Certificateholders, all of its right, title and interest in the Mortgage Loan Purchase Agreement, including but not limited to the Depositor’s rights and obligations pursuant to the Servicing Agreement (noting that the Seller has retained the right in the event of breach of the representations, warranties and covenants, if any, with respect to the Mortgage Loans of the Servicer under the Servicing Agreement to enforce the provisions thereof and to seek all or any available remedies). The obligations of the Seller to substitute or repurchase, as applicable, a Mortgage Loan shall be the Trustee’s and the Certificateholders’ sole remedy for any breach thereof. At the request of the Trustee, the Depositor shall take such actions as may be necessary to enforce the above right, title and interest on behalf of the Trust and the Certificateholders or shall execute such further documents as the Trustee may reasonably require in order to enable the Trustee to carry out such enforcement.

(b) If the Depositor, the Master Servicer, or the Trustee discovers a breach of any of the representations and warranties set forth in the Mortgage Loan Purchase Agreement, which breach materially and adversely affects the value of the interests of Certificateholders or the Trustee in the related Mortgage Loan, the party discovering the breach shall give prompt written notice of the breach to the other parties. The Seller, within 90 days of its discovery or receipt of notice that such breach has occurred (whichever occurs earlier), shall cure the breach in all material respects or, subject to the Mortgage Loan Purchase Agreement or Section 2.04 of this Agreement, as applicable, shall purchase the Mortgage Loan or any property acquired with respect thereto from the Trust; provided, however, that if there is a breach of any representation set forth in the Mortgage Loan Purchase Agreement or Section 2.04 of this Agreement, as applicable, and the Mortgage Loan or the related property acquired with respect thereto has been sold, then the Seller shall pay, in lieu of the Repurchase Price, any excess of the Repurchase Price over the Net Liquidation Proceeds received upon such sale. (If the Net Liquidation Proceeds exceed the Repurchase Price, any excess shall be paid to the Seller to the extent not required by law to be paid to the borrower.) Any such purchase by the Seller shall be made by providing an amount equal to the Repurchase Price to the Master Servicer for deposit in the Distribution Account and written notification detailing the components of such Repurchase Price. The Depositor shall notify the Trustee and submit to the Trustee or the Custodian a Request for Release certifying that the Repurchase Price has been remitted to the Master Servicer for deposit in the Distribution Account, and the Trustee shall release, or the Custodian shall release, to the Seller the related Mortgage File and the Trustee shall execute and deliver all instruments of transfer or assignment furnished to it by the Seller, without recourse, representation or warranty as are necessary to vest in the Seller title to and rights under the Mortgage Loan or any property acquired with respect thereto. Such purchase shall be deemed to have occurred on the date on which the Repurchase Price in available funds is received by the Securities Administrator. The Master Servicer shall amend the Mortgage Loan Schedule to reflect such repurchase and shall promptly notify the Trustee and the Rating Agencies of such amendment. Enforcement of the obligation of the Seller to purchase (or substitute a Substitute Mortgage Loan for) any Mortgage Loan or any property acquired with respect thereto (or pay the Repurchase Price as set forth in the above proviso) as to which a breach has occurred and is continuing shall constitute the sole remedy respecting such breach available to the Certificateholders or the Trustee on their behalf.

Section 2.04 Substitution of Mortgage Loans. Notwithstanding anything to the contrary in this Agreement, in lieu of purchasing a Mortgage Loan pursuant to the Mortgage Loan Purchase Agreement or Sections 2.02 or 2.03 of this Agreement, the Seller may, no later than the date by which such purchase by the Seller would otherwise be required, tender to the Trustee (on behalf of the Trust) a Substitute Mortgage Loan accompanied by a certificate of an authorized officer of the Seller that such Substitute Mortgage Loan conforms to the requirements set forth in the definition of “Substitute Mortgage Loan” in the Mortgage Loan Purchase Agreement or this Agreement, as applicable; provided, however, that substitution pursuant to the Mortgage Loan Purchase Agreement or Section 2.04 of this Agreement, as applicable, in lieu of purchase shall not be permitted after the termination of the two-year period beginning on the Startup Day; provided, further, that if the breach would cause the Mortgage Loan to be other than a “qualified mortgage” as defined in Section 860G(a)(3)(A) of the Code and Treasury Regulation Section 1.860G-2(a)(1), (2), (4), (5), (6), (7) and (9), without reliance on the provisions of Treasury Regulation Section 1.860G-2(a)(3) or Treasury Regulation Section 1.860G-2(f)(2) or any other provision that would allow a

Mortgage Loan to be treated as a "qualified mortgage" notwithstanding its failure to meet the requirements of Section 860G(a)(3)(A) of the Code and Treasury Regulation Section 1.860G-2(a)(1), (2), (4), (5), (6), (7) and (9), any such cure or substitution must occur within 90 days from the date the breach was discovered. The Trustee or the Custodian shall examine the Mortgage File for any Substitute Mortgage Loan in the manner set forth in Section 2.02(a) and the Trustee or the Custodian shall notify the Seller, in writing, within five Business Days after receipt, whether or not the documents relating to the Substitute Mortgage Loan satisfy the requirements of the fourth sentence of Section 2.02(a). Within two Business Days after such notification, the Seller shall provide to the Securities Administrator for deposit in the Distribution Account the amount, if any, by which the Outstanding Principal Balance as of the next preceding Due Date of the Mortgage Loan for which substitution is being made, after giving effect to the Scheduled Principal due on such date, exceeds the Outstanding Principal Balance as of such date of the Substitute Mortgage Loan, after giving effect to Scheduled Principal due on such date, which amount shall be treated for the purposes of this Agreement as if it were the payment by the Seller of the Repurchase Price for the purchase of a Mortgage Loan by the Seller. After such notification to the Seller and, if any such excess exists, upon notice from the Securities Administrator to the Trustee of receipt of such deposit, the Trustee shall accept such Substitute Mortgage Loan which shall thereafter be deemed to be a Mortgage Loan hereunder. In the event of such a substitution, accrued interest on the Substitute Mortgage Loan for the month in which the substitution occurs and any Principal Prepayments made thereon during such month shall be the property of the Trust Fund and accrued interest for such month on the Mortgage Loan for which the substitution is made and any Principal Prepayments made thereon during such month shall be the property of the Seller. The Scheduled Principal on a Substitute Mortgage Loan due on the Due Date in the month of substitution shall be the property of the Seller and the Scheduled Principal on the Mortgage Loan for which the substitution is made due on such Due Date shall be the property of the Trust Fund. Upon acceptance of the Substitute Mortgage Loan (and delivery to the Trustee or the Custodian, as applicable, of a Request for Release for such Mortgage Loan), the Trustee or the Custodian shall release to the Seller the related Mortgage File related to any Mortgage Loan released pursuant to the Mortgage Loan Purchase Agreement or Section 2.04 of this Agreement, as applicable, and shall execute and deliver all instruments of transfer or assignment, without recourse, representation or warranty in form as provided to it as are necessary to vest in the Seller title to and rights under any Mortgage Loan released pursuant to the Mortgage Loan Purchase Agreement or Section 2.04 of this Agreement, as applicable. The Seller shall deliver the documents related to the Substitute Mortgage Loan in accordance with the provisions of the Mortgage Loan Purchase Agreement or Sections 2.01(b) and 2.02(b) of this Agreement, as applicable, with the date of acceptance of the Substitute Mortgage Loan deemed to be the Closing Date for purposes of the time periods set forth in those Sections. The representations and warranties set forth in the Mortgage Loan Purchase Agreement shall be deemed to have been made by the Seller with respect to each Substitute Mortgage Loan as of the date of acceptance of such Mortgage Loan by the Trustee (on behalf of the Trust). The Master Servicer shall amend the Mortgage Loan Schedule to reflect such substitution and shall provide a copy of such amended Mortgage Loan Schedule to the Trustee, who shall then deliver such amended Mortgage Loan Schedule to the Rating Agencies.

Section 2.05 Issuance of Certificates.

(a) The Trustee acknowledges the assignment to it (on behalf of the Trust) of the Mortgage Loans and the other assets comprising the Trust Fund and, concurrently therewith, the Securities Administrator has signed, and countersigned and delivered to the Depositor, in exchange therefor, Certificates in such authorized denominations representing such Fractional Undivided Interests as the Depositor has requested. The Trustee agrees that it will hold the Mortgage Loans, and the Securities Administrator agrees it will hold such other assets, as may from time to time be delivered to it segregated on its books in trust for the benefit of the Certificateholders.

(b) The Depositor, concurrently with the execution and delivery hereof, does hereby transfer, assign, set over and otherwise convey in trust to the Trustee without recourse all the right, title and interest of the Depositor in and to the REMIC I Regular Interests, and the other assets of REMIC II for the benefit of the holders of the REMIC II Certificates. The Trustee acknowledges receipt of the REMIC I Regular Interests (which are uncertificated) and the other assets of REMIC II and declares that it holds and will hold the same in trust for the exclusive use and benefit of the holders of the REMIC II Certificates.

Section 2.06 Representations and Warranties Concerning the Depositor. The Depositor hereby represents and warrants to the Trustee, the Master Servicer and the Securities Administrator as follows:

(i) the Depositor (a) is a corporation duly organized, validly existing and in good standing under the laws of the State of Delaware and (b) is qualified and in good standing as a foreign corporation to do business in each jurisdiction where such qualification is necessary, except where the failure so to qualify would not reasonably be expected to have a material adverse effect on the Depositor’s business as presently conducted or on the Depositor’s ability to enter into this Agreement and to consummate the transactions contemplated hereby;

(ii) the Depositor has full corporate power to own its property, to carry on its business as presently conducted and to enter into and perform its obligations under this Agreement;

(iii) the execution and delivery by the Depositor of this Agreement have been duly authorized by all necessary corporate action on the part of the Depositor; and neither the execution and delivery of this Agreement, nor the consummation of the transactions herein contemplated, nor compliance with the provisions hereof, will conflict with or result in a breach of, or constitute a default under, any of the provisions of any law, governmental rule, regulation, judgment, decree or order binding on the Depositor or its properties or the articles of incorporation or by-laws of the Depositor, except those conflicts, breaches or defaults which would not reasonably be expected to have a material adverse effect on the Depositor’s ability to enter into this Agreement and to consummate the transactions contemplated hereby;

(iv) the execution, delivery and performance by the Depositor of this Agreement and the consummation of the transactions contemplated hereby do not require the consent or approval of, the giving of notice to, the registration with, or the taking of any other action in respect of, any state, federal or other governmental authority or agency, except those

consents, approvals, notices, registrations or other actions as have already been obtained, given or made;

(v) this Agreement has been duly executed and delivered by the Depositor and, assuming due authorization, execution and delivery by the other parties hereto, constitutes a valid and binding obligation of the Depositor enforceable against it in accordance with its terms (subject to applicable bankruptcy and insolvency laws and other similar laws affecting the enforcement of the rights of creditors generally);

(vi) there are no actions, suits or proceedings pending or, to the knowledge of the Depositor, threatened against the Depositor, before or by any court, administrative agency, arbitrator or governmental body (i) with respect to any of the transactions contemplated by this Agreement or (ii) with respect to any other matter which in the judgment of the Depositor will be determined adversely to the Depositor and will if determined adversely to the Depositor materially and adversely affect the Depositor’s ability to enter into this Agreement or perform its obligations under this Agreement; and the Depositor is not in default with respect to any order of any court, administrative agency, arbitrator or governmental body so as to materially and adversely affect the transactions contemplated by this Agreement; and

(vii) immediately prior to the transfer and assignment to the Trust, each Mortgage Note and each Mortgage were not subject to an assignment or pledge, and the Depositor had good and marketable title to and was the sole owner thereof and had full right to transfer and sell such Mortgage Loan to the Trustee free and clear of any encumbrance, equity, lien, pledge, charge, claim or security interest.

Section 2.07.	[Reserved].

Section 2.08. Permitted Activities of the Trust. The permitted activities of the Trust shall be limited to the foregoing:

(i) to issue the Certificates pursuant to this Agreement and to sell the Certificates;

(ii) to pay the organizational, start-up and transactional expenses of the Trust;

(iii) to assign, grant, transfer, pledge and convey the Mortgage Loans pursuant to this Agreement;

(iv) to enter into and perform its obligations under this Agreement;

(v) to engage in those activities, including entering into agreements, that are necessary, suitable or convenient to accomplish the foregoing or are incidental thereto or connected therewith; and

(vi) subject to compliance with this Agreement, to engage in such other activities as may be required in connection with conservation of the Trust Fund and the making of distributions to the Certificateholders.

The Trust is hereby authorized to engage in the foregoing activities. The Trust shall not engage in any activity other than in connection with the foregoing or other than as required or authorized by the terms of this Agreement.

ARTICLE III

ADMINISTRATION AND SERVICING OF MORTGAGE LOANS

Section 3.01 Master Servicer. The Master Servicer shall supervise, monitor and oversee the obligation of the Servicer to service and administer their respective Mortgage Loans in accordance with the terms of the Servicing Agreement and shall have full power and authority to do any and all things which it may deem necessary or desirable in connection with such master servicing and administration. In performing its obligations hereunder, the Master Servicer shall act in a manner consistent with Accepted Master Servicing Practices. Furthermore, the Master Servicer shall oversee and consult with the Servicer as necessary from time-to-time to carry out the Master Servicer’s obligations hereunder, shall receive, review and evaluate all reports, information and other data provided to the Master Servicer by the Servicer and shall cause the Servicer to perform and observe the covenants, obligations and conditions to be performed or observed by the Servicer under the Servicing Agreement. The Master Servicer shall independently and separately monitor the Servicer’s servicing activities with respect to each related Mortgage Loan, reconcile the results of such monitoring with such information provided in the previous sentence on a monthly basis and coordinate corrective adjustments to the Servicer’s and Master Servicer’s records, and based on such reconciled and corrected information, the Master Servicer shall provide such information to the Securities Administrator as shall be necessary in order for it to prepare the statements specified in Section 6.04, and prepare any other information and statements required to be forwarded by the Master Servicer hereunder. The Master Servicer shall reconcile the results of its Mortgage Loan monitoring with the actual remittances of the Servicer as reported to the Master Servicer; provided, however, that the Master Servicer will not be required to recompute the calculation of any Prepayment Charge.

The Trustee shall furnish the Servicer and the Master Servicer with any powers of attorney, in substantially the form attached hereto as Exhibit K, and other documents in form as provided to it necessary or appropriate to enable the Servicer and the Master Servicer to service and administer the Mortgage Loans and REO Property. The Trustee shall have no liability for the use by the Servicer or the Master Servicer of any such powers of attorney.

The Trustee shall provide access to the records and documentation in possession of the Trustee regarding the Mortgage Loans and REO Property to the Certificateholders, the FDIC, and the supervisory agents and examiners of the FDIC, such access being afforded only upon reasonable prior written request and during normal business hours at the office of the Trustee; provided, however, that, unless otherwise required by law, the Trustee shall not be required to provide access to such records and documentation if the provision thereof would violate the legal right to privacy of any Mortgagor. The Trustee shall allow representatives of the above entities to photocopy any of the records and documentation and shall provide equipment for that purpose at a charge that covers the Trustee’s actual costs.

The Trustee shall execute and deliver to the Servicer and the Master Servicer any court pleadings, requests for trustee’s sale or other documents necessary or desirable to (i) the foreclosure or trustee’s sale with respect to a Mortgaged Property; (ii) any legal action brought to obtain judgment against any Mortgagor on the Mortgage Note or Security Instrument; (iii) obtain a deficiency judgment against the Mortgagor; or (iv) enforce any other rights or remedies provided by the Mortgage Note or Security Instrument or otherwise available at law or equity.

Section 3.02 REMIC-Related Covenants. For as long as each 2005-AR1 REMIC shall exist, the Securities Administrator shall act in accordance herewith to assure continuing treatment of such 2005-AR1 REMIC as a REMIC, and the Securities Administrator shall comply with any directions of the Depositor, the Servicer or the Master Servicer to assure such continuing treatment. In particular, the Securities Administrator shall not (a) sell or permit the sale of all or any portion of the Mortgage Loans or of any investment of deposits in an Account unless such sale is as a result of a repurchase of the Mortgage Loans pursuant to this Agreement or the Trustee has received a REMIC Opinion addressed to the Trustee prepared at the expense of the Trust Fund; and (b) other than with respect to a substitution pursuant to the Mortgage Loan Purchase Agreement or Section 2.04 of this Agreement, as applicable, accept any contribution to any 2005-AR1 REMIC after the Startup Day without receipt of a REMIC Opinion addressed to the Trustee.

Section 3.03 Monitoring of Servicer. (a) The Master Servicer shall be responsible for reporting to the Depositor the compliance by the Servicer with its duties under the Servicing Agreement. In the review of the Servicer’s activities, the Master Servicer may rely upon an officer’s certificate of the Servicer (or similar document signed by an officer of the Servicer) with regard to the Servicer’s compliance with the terms of the Servicing Agreement. In the event that the Master Servicer, in its judgment, determines that the Servicer should be terminated in accordance with the Servicing Agreement, or that a notice should be sent pursuant to the Servicing Agreement with respect to the occurrence of an event that, unless cured, would constitute grounds for such termination, the Master Servicer shall notify the Depositor thereof and the Master Servicer shall issue such notice or take such other action as it deems appropriate.

(b) The Master Servicer, for the benefit of the Trustee and the Certificateholders, shall enforce the obligations of the Servicer under the Servicing Agreement, and shall, in the event that the Servicer fails to perform its obligations in accordance with the Servicing Agreement, subject to the preceding paragraph, terminate the rights and obligations of the Servicer thereunder and act as servicer of the Mortgage Loans or cause the Trustee to enter into a new Servicing Agreement with a successor Servicer selected by the Master Servicer; provided, however, it is understood and acknowledged by the parties hereto that there will be a period of transition (not to exceed 90 days) before the actual servicing functions can be fully transferred to such successor Servicer. Such enforcement, including, without limitation, the legal prosecution of claims, termination of Servicing Agreement and the pursuit of other appropriate remedies, shall be in such form and carried out to such an extent and at such time as the Master Servicer, in its good faith business judgment, would require were it the owner of the Mortgage Loans. The Master Servicer shall pay the costs of such enforcement at its own expense, provided that the Master Servicer shall not be required to prosecute or defend any legal action except to the extent that the Master Servicer shall have received reasonable indemnity for its costs and expenses in pursuing such action.

(c) To the extent that the costs and expenses of the Master Servicer related to any termination of the Servicer, appointment of a successor Servicer or the transfer and assumption of servicing by the Master Servicer with respect to the Servicing Agreement (including, without limitation, (i) all legal costs and expenses and all due diligence costs and expenses associated with an evaluation of the potential termination of the Servicer as a result of an event of default by the Servicer and (ii) all costs and expenses associated with the complete transfer of servicing, including, but not limited to, all servicing files and all servicing data and the completion, correction or manipulation of such servicing data as may be required by the successor servicer to correct any errors or insufficiencies in the servicing data or otherwise to enable the successor service to service the Mortgage Loans in accordance with the Servicing Agreement) are not fully and timely reimbursed by the terminated Servicer, the Master Servicer shall be entitled to reimbursement of such costs and expenses from the Distribution Account.

(d) The Master Servicer shall require the Servicer to comply with the remittance requirements and other obligations set forth in the Servicing Agreement.

(e) If the Master Servicer acts as Servicer, it will not assume liability for the representations and warranties of the Servicer, if any, that it replaces.

Section 3.04 Fidelity Bond. The Master Servicer, at its expense, shall maintain in effect a blanket fidelity bond and an errors and omissions insurance policy, affording coverage with respect to all directors, officers, employees and other Persons acting on such Master Servicer’s behalf, and covering errors and omissions in the performance of the Master Servicer’s obligations hereunder. The errors and omissions insurance policy and the fidelity bond shall be in such form and amount generally acceptable for entities serving as master servicers or trustees.

Section 3.05 Power to Act; Procedures. The Master Servicer shall master service the Mortgage Loans and shall have full power and authority, subject to the REMIC Provisions and the provisions of Article X hereof, to do any and all things that it may deem necessary or desirable in connection with the master servicing and administration of the Mortgage Loans, including but not limited to the power and authority (i) to execute and deliver, on behalf of the Certificateholders and the Trustee, customary consents or waivers and other instruments and documents, (ii) to consent to transfers of any Mortgaged Property and assumptions of the Mortgage Notes and related Mortgages, (iii) to collect any Insurance Proceeds and Liquidation Proceeds, and (iv) to effectuate foreclosure or other conversion of the ownership of the Mortgaged Property securing any Mortgage Loan, in each case, in accordance with the provisions of this Agreement and the Servicing Agreement, as applicable; provided, however, that the Master Servicer shall not (and, consistent with its responsibilities under Section 3.03, shall not permit the Servicer to) knowingly or intentionally take any action, or fail to take (or fail to cause to be taken) any action reasonably within its control and the scope of duties more specifically set forth herein, that, under the REMIC Provisions, if taken or not taken, as the case may be, would cause any 2005-AR1 REMIC to fail to qualify as a REMIC or result in the imposition of a tax upon the Trust Fund (including but not limited to the tax on prohibited transactions as defined in Section 860F(a)(2) of the Code and the tax on contributions to a REMIC set forth in Section 860G(d) of the Code) unless the Master Servicer has received an Opinion of Counsel (but not at the expense of the Master Servicer) to the effect that the contemplated action would not cause any 2005-AR1 REMIC to fail to qualify as a REMIC or

result in the imposition of a tax upon any 2005-AR1 REMIC. The Trustee shall furnish the Master Servicer, upon written request from a Servicing Officer, with any powers of attorney in the form of Exhibit K empowering the Master Servicer or the Servicer to execute and deliver instruments of satisfaction or cancellation, or of partial or full release or discharge, and to foreclose upon or otherwise liquidate Mortgaged Property, and to appeal, prosecute or defend in any court action relating to the Mortgage Loans or the Mortgaged Property, in accordance with the Servicing Agreement and this Agreement, and the Trustee shall execute and deliver such other documents, as the Master Servicer may request, to enable the Master Servicer to master service and administer the Mortgage Loans and carry out its duties hereunder, in each case in accordance with Accepted Master Servicing Practices (and the Trustee shall have no liability for the use of any such powers of attorney by the Master Servicer or the Servicer). If the Master Servicer or the Trustee has been advised that it is likely that the laws of the state in which action is to be taken prohibit such action if taken in the name of the Trustee or that the Trustee would be adversely affected under the “doing business” or tax laws of such state if such action is taken in its name, the Master Servicer shall join with the Trustee in the appointment of a co-trustee pursuant to Section 9.11 hereof. In the performance of its duties hereunder, the Master Servicer shall be an independent contractor and shall not be deemed to be the agent of the Trustee.

Section 3.06 Due-on-Sale Clauses; Assumption Agreements. To the extent provided in the Servicing Agreement, to the extent Mortgage Loans contain enforceable due-on-sale clauses, the Master Servicer shall cause the Servicer to enforce such clauses in accordance with the Servicing Agreement. If applicable law prohibits the enforcement of a due-on-sale clause or such clause is otherwise not enforced in accordance with the Servicing Agreement, and, as a consequence, a Mortgage Loan is assumed, the original Mortgagor may be released from liability in accordance with the Servicing Agreement.

Section 3.07 Release of Mortgage Files. (a) Upon becoming aware of the payment in full of any Mortgage Loan, or the receipt by the Servicer of a notification that payment in full has been escrowed in a manner customary for such purposes for payment to Certificateholders on the next Distribution Date, the Servicer will, if required under the Servicing Agreement (or if the Servicer does not, the Master Servicer may), promptly furnish to the Custodian, on behalf of the Trustee, a certification substantially in the form of Exhibit D hereto signed by a Servicing Officer or in a mutually agreeable electronic format which will, in lieu of a signature on its face, originate from a Servicing Officer (which certification shall include a statement to the effect that all amounts received in connection with such payment that are required to be deposited in the Protected Account maintained by the Servicer pursuant to Section 4.01, or by the Servicer pursuant to the Servicing Agreement, have been or will be so deposited) and shall request that the Custodian, on behalf of the Trustee, deliver to the Servicer the related Mortgage File. Upon receipt of such certification and request, the Custodian, on behalf of the Trustee, and at the expense of the Servicer, shall promptly release the related Mortgage File to the Servicer and the Trustee and Custodian shall have no further responsibility with regard to such Mortgage File. Upon any such payment in full, the Servicer is authorized to give, as the mortgagee under the Mortgage that secured the Mortgage Loan, an instrument of satisfaction (or assignment of mortgage without recourse) regarding the Mortgaged Property subject to the Mortgage, which instrument of satisfaction or assignment, as the case may be, shall be delivered to the Person or Persons entitled thereto against receipt therefor of such payment, it being understood and agreed

that no expenses incurred in connection with such instrument of satisfaction or assignment, as the case may be, shall be chargeable to the Protected Account.

(b) From time to time and as appropriate for the servicing or foreclosure of any Mortgage Loan and in accordance with the Servicing Agreement, the Trustee shall execute such documents as shall be prepared and furnished to the Trustee by the Servicer or the Master Servicer and as are necessary to the prosecution of any such proceedings. The Custodian, on behalf of the Trustee, shall, upon the request of the Servicer or the Master Servicer, and delivery to the Custodian, on behalf of the Trustee, of a Request for Release signed by a Servicing Officer substantially in the form of Exhibit D (or in a mutually agreeable electronic format which will, in lieu of a signature on its face, originate from a Servicing Officer), release the related Mortgage File held in its possession or control to the Servicer or the Master Servicer, as applicable. Such Request for Release shall obligate the Servicer or the Master Servicer to return the Mortgage File to the Custodian on behalf of the Trustee, when the need therefor by the Servicer or the Master Servicer no longer exists unless the Mortgage Loan shall be liquidated, in which case, upon receipt of a certificate of a Servicing Officer similar to that hereinabove specified, the Mortgage File shall be released by the Custodian, on behalf of the Trustee, to the Servicer or the Master Servicer.

Section 3.08 Documents, Records and Funds in Possession of Master Servicer To Be Held for Trustee.

(a) The Master Servicer shall transmit and the Servicer (to the extent required by the Servicing Agreement) shall transmit to the Trustee or Custodian such documents and instruments coming into the possession of the Master Servicer or the Servicer from time to time as are required by the terms hereof, or in the case of the Servicer, the Servicing Agreement, to be delivered to the Trustee or Custodian. Any funds received by the Master Servicer or by the Servicer in respect of any Mortgage Loan or which otherwise are collected by the Master Servicer or by the Servicer as Liquidation Proceeds or Insurance Proceeds in respect of any Mortgage Loan shall be held for the benefit of the Trustee and the Certificateholders subject to the Master Servicer’s right to retain or withdraw from the Distribution Account the Master Servicing Compensation and other amounts provided in this Agreement, and to the right of the Servicer to retain its Servicing Fee and other amounts as provided in the Servicing Agreement. The Master Servicer shall, and (to the extent provided in the Servicing Agreement) shall cause the Servicer to, provide access to information and documentation regarding the Mortgage Loans to the Trustee, its agents and accountants at any time upon reasonable request and during normal business hours, and to Certificateholders that are savings and loan associations, banks or insurance companies, the Office of Thrift Supervision, the FDIC and the supervisory agents and examiners of such Office and Corporation or examiners of any other federal or state banking or insurance regulatory authority if so required by applicable regulations of the Office of Thrift Supervision or other regulatory authority, such access to be afforded without charge but only upon reasonable request in writing and during normal business hours at the offices of the Master Servicer designated by it. In fulfilling such a request the Master Servicer shall not be responsible for determining the sufficiency of such information.

(b) All Mortgage Files and funds collected or held by, or under the control of, the Master Servicer, in respect of any Mortgage Loans, whether from the collection of principal and

interest payments or from Liquidation Proceeds or Insurance Proceeds, shall be held by the Master Servicer for and on behalf of the Trustee and the Certificateholders and shall be and remain the sole and exclusive property of the Trust; provided, however, that the Master Servicer and the Servicer shall be entitled to setoff against, and deduct from, any such funds any amounts that are properly due and payable to the Master Servicer or the Servicer under this Agreement or the Servicing Agreement.

Section 3.09 Standard Hazard Insurance and Flood Insurance Policies.

(a) For each Mortgage Loan, the Master Servicer shall enforce any obligation of the Servicer under the Servicing Agreement to maintain or cause to be maintained standard fire and casualty insurance and, where applicable, flood insurance, all in accordance with the provisions of the Servicing Agreement. It is understood and agreed that such insurance shall be with insurers meeting the eligibility requirements set forth in the Servicing Agreement and that no earthquake or other additional insurance is to be required of any Mortgagor or to be maintained on property acquired in respect of a defaulted loan, other than pursuant to such applicable laws and regulations as shall at any time be in force and as shall require such additional insurance.

(b) Pursuant to Section 4.01 and 4.02, any amounts collected by the Servicer or the Master Servicer, under any insurance policies (other than amounts to be applied to the restoration or repair of the property subject to the related Mortgage or released to the Mortgagor in accordance with the Servicing Agreement) shall be deposited into the Distribution Account. Any cost incurred by the Master Servicer or the Servicer in maintaining any such insurance if the Mortgagor defaults in its obligation to do so shall be added to the amount owing under the Mortgage Loan where the terms of the Mortgage Loan so permit; provided, however, that the addition of any such cost shall not be taken into account for purposes of calculating the distributions to be made to Certificateholders and shall be recoverable by the Master Servicer or the Servicer pursuant to Section 4.02 and 4.03.

Section 3.10 Presentment of Claims and Collection of Proceeds. The Master Servicer shall (to the extent provided in the Servicing Agreement) cause the Servicer to, prepare and present on behalf of the Trustee and the Certificateholders all claims under the Insurance Policies and take such actions (including the negotiation, settlement, compromise or enforcement of the insured’s claim) as shall be necessary to realize recovery under such policies. Any proceeds disbursed to the Master Servicer (or disbursed to the Servicer and remitted to the Master Servicer) in respect of such policies, bonds or contracts shall be promptly deposited in the Distribution Account upon receipt, except that any amounts realized that are to be applied to the repair or restoration of the related Mortgaged Property as a condition precedent to the presentation of claims on the related Mortgage Loan to the insurer under any applicable Insurance Policy need not be so deposited (or remitted).

Section 3.11 Maintenance of the Primary Mortgage Insurance Policies.

(a) The Master Servicer shall not take, or permit the Servicer (to the extent such action is prohibited under the Servicing Agreement) to take, any action that would result in noncoverage under any applicable Primary Mortgage Insurance Policy of any loss which, but for the actions of the Master Servicer or the Servicer, would have been covered thereunder. The

Master Servicer shall use its best reasonable efforts to cause the Servicer (to the extent required under the Servicing Agreement) to keep in force and effect (to the extent that the Mortgage Loan requires the Mortgagor to maintain such insurance), primary mortgage insurance applicable to each Mortgage Loan in accordance with the provisions of this Agreement and the Servicing Agreement, as applicable. The Master Servicer shall not, and shall not permit the Servicer (to the extent required under the Servicing Agreement) to, cancel or refuse to renew any such Primary Mortgage Insurance Policy that is in effect at the date of the initial issuance of the Mortgage Note and is required to be kept in force hereunder except in accordance with the provisions of this Agreement and the Servicing Agreement, as applicable.

(b) The Master Servicer agrees to present, or to cause the Servicer (to the extent required under the Servicing Agreement) to present, on behalf of the Trustee and the Certificateholders, claims to the insurer under any Primary Mortgage Insurance Policies and, in this regard, to take such reasonable action as shall be necessary to permit recovery under any Primary Mortgage Insurance Policies respecting defaulted Mortgage Loans.

Section 3.12 Trustee to Retain Possession of Certain Insurance Policies and Documents.

The Trustee (or the Custodian, as directed by the Trustee), shall retain possession and custody of the originals (to the extent available) of any Primary Mortgage Insurance Policies, or certificate of insurance if applicable, and any certificates of renewal as to the foregoing as may be issued from time to time as contemplated by this Agreement. Until all amounts distributable in respect of the Certificates have been distributed in full and the Master Servicer otherwise has fulfilled its obligations under this Agreement, the Trustee (or its Custodian, if any, as directed by the Trustee) shall also retain possession and custody of each Mortgage File in accordance with and subject to the terms and conditions of this Agreement. The Master Servicer shall promptly deliver or cause to be delivered to the Trustee (or the Custodian, as directed by the Trustee), upon the execution or receipt thereof the originals of any Primary Mortgage Insurance Policies, any certificates of renewal, and such other documents or instruments that constitute portions of the Mortgage File that come into the possession of the Master Servicer from time to time.

Section 3.13 Realization Upon Defaulted Mortgage Loans. The Master Servicer shall cause the Servicer (to the extent required under the Servicing Agreement) to foreclose upon, repossess or otherwise comparably convert the ownership of Mortgaged Properties securing such of the Mortgage Loans as come into and continue in default and as to which no satisfactory arrangements can be made for collection of delinquent payments, all in accordance with the Servicing Agreement.

Section 3.14 Compensation for the Master Servicer.

The Master Servicer will be entitled to all income and gain realized from any investment of funds in the Distribution Account, pursuant to Article IV, for the performance of its activities hereunder. Servicing compensation in the form of assumption fees, if any, late payment charges, as collected, if any, or otherwise (but not including any prepayment premium or penalty) shall be retained by the Servicer and shall not be deposited in the Protected Account. The Master Servicer will be entitled to retain, as additional compensation, any interest remitted by the

Servicer in connection with a Principal Prepayment in full or otherwise in excess of amounts required to be remitted to the Distribution Account (such amounts together with the amounts specified in the first sentence of this Section 3.14, the “Master Servicing Compensation”). The Master Servicer shall be required to pay all expenses incurred by it in connection with its activities hereunder and shall not be entitled to reimbursement therefor except as provided in this Agreement.

Section 3.15 REO Property.

(a) In the event the Trust Fund acquires ownership of any REO Property in respect of any related Mortgage Loan, the deed or certificate of sale shall be issued to the Trustee, or to its nominee, on behalf of the related Certificateholders. The Master Servicer shall, to the extent provided in the Servicing Agreement, cause the Servicer to sell, any REO Property as expeditiously as possible and in accordance with the provisions of this Agreement and the Servicing Agreement, as applicable. Pursuant to its efforts to sell such REO Property, the Master Servicer shall cause the Servicer to protect and conserve, such REO Property in the manner and to the extent required by the Servicing Agreement, in accordance with the REMIC Provisions and in a manner that does not result in a tax on “net income from foreclosure property” (unless such result would maximize the Trust Fund’s after-tax return on such property) or cause such REO Property to fail to qualify as “foreclosure property” within the meaning of Section 860G(a)(8) of the Code.

(b) The Master Servicer shall, to the extent required by the Servicing Agreement, cause the Servicer to deposit all funds collected and received in connection with the operation of any REO Property in the Protected Account.

(c) The Master Servicer and the Servicer, upon the final disposition of any REO Property, shall be entitled to reimbursement for any related unreimbursed Monthly Advances and other unreimbursed advances as well as any unpaid Servicing Fees from Liquidation Proceeds received in connection with the final disposition of such REO Property; provided, that any such unreimbursed Monthly Advances as well as any unpaid Servicing Fees may be reimbursed or paid, as the case may be, prior to final disposition, out of any net rental income or other net amounts derived from such REO Property.

(d) To the extent provided in the Servicing Agreement, the Liquidation Proceeds from the final disposition of the REO Property, net of any payment to the Master Servicer and the Servicer as provided above shall be deposited in the Protected Account on or prior to the Determination Date in the month following receipt thereof and be remitted by wire transfer in immediately available funds to the Master Servicer for deposit into the Distribution Account on the next succeeding Servicer Remittance Date.

Section 3.16 Annual Officer’s Certificate as to Compliance.

(a) The Master Servicer shall deliver to the Trustee and the Rating Agencies on or before March 1 of each year, commencing on March 1, 2006, an Officer’s Certificate, certifying that with respect to the period ending December 31 of the prior year: (i) such Servicing Officer has reviewed the activities of such Master Servicer during the preceding calendar year or portion thereof and its performance under this Agreement, (ii) to the best of such Servicing Officer’s knowledge, based on such review, such Master Servicer has performed and fulfilled its duties, responsibilities and obligations under this Agreement in all material respects throughout such

year, or, if there has been a default in the fulfillment of any such duties, responsibilities or obligations, specifying each such default known to such Servicing Officer and the nature and status thereof, (iii) nothing has come to the attention of such Servicing Officer to lead such Servicing Officer to believe that the Servicer has failed to perform any of its duties, responsibilities and obligations under the Servicing Agreement in all material respects throughout such year, or, if there has been a material default in the performance or fulfillment of any such duties, responsibilities or obligations, specifying each such default known to such Servicing Officer and the nature and status thereof.

(b) Copies of such statements shall be provided to any Certificateholder upon request, by the Master Servicer or by the Trustee at the Master Servicer’s expense if the Master Servicer failed to provide such copies (unless (i) the Master Servicer shall have failed to provide the Trustee with such statement or (ii) the Trustee shall be unaware of the Master Servicer’s failure to provide such statement).

Section 3.17 Annual Independent Accountant’s Servicing Report. If the Master Servicer has, during the course of any fiscal year, directly serviced any of the Mortgage Loans, then the Master Servicer at its expense shall cause a nationally recognized firm of independent certified public accountants to furnish a statement to the Trustee, the Rating Agencies and the Depositor on or before March 1 of each year, commencing on March 1, 2006 to the effect that, with respect to the most recently ended fiscal year, such firm has examined certain records and documents relating to the Master Servicer’s performance of its servicing obligations under this Agreement and pooling and servicing and trust agreements in material respects similar to this Agreement and to each other and that, on the basis of such examination conducted substantially in compliance with the audit program for mortgages serviced for Xxxxxxx Mac or the Uniform Single Attestation Program for Mortgage Bankers, such firm is of the opinion that the Master Servicer’s activities have been conducted in compliance with this Agreement, or that such examination has disclosed no material items of noncompliance except for (i) such exceptions as such firm believes to be immaterial, (ii) such other exceptions as are set forth in such statement and (iii) such exceptions that the Uniform Single Attestation Program for Mortgage Bankers or the Audit Program for Mortgages Serviced by Xxxxxxx Mac requires it to report. Copies of such statements shall be provided to any Certificateholder upon request by the Master Servicer, or by the Trustee at the expense of the Master Servicer if the Master Servicer shall fail to provide such copies. If such report discloses exceptions that are material, the Master Servicer shall advise the Trustee whether such exceptions have been or are susceptible of cure, and will take prompt action to do so.

Section 3.18 Reports Filed with Securities and Exchange Commission. Within 15 days after each Distribution Date, the Securities Administrator shall, in accordance with industry standards, file with the Commission via the Electronic Data Gathering and Retrieval System (“XXXXX”), a Form 8-K (or other comparable form containing the same or comparable information or other information mutually agreed upon) with a copy of the statement to the Certificateholders for such Distribution Date as an exhibit thereto. Prior to January 30 of each year, the Securities Administrator shall, in accordance with industry standards, file a Form 15 Suspension Notice with respect to the Trust Fund, if applicable. Prior to (i) March 15, 2006 and (ii) unless and until a Form 15 Suspension Notice shall have been filed, prior to March 15 of each year thereafter, the Master Servicer shall provide the Securities Administrator with a Master

Servicer Certification, together with a copy of the annual independent accountant’s servicing report and annual statement of compliance of the Servicer required to be delivered pursuant to the Servicing Agreement, and, if applicable, the annual independent accountant’s servicing report and annual statement of compliance to be delivered by the Master Servicer pursuant to Sections 3.16 and 3.17. Prior to (i) March 31, 2006, or such earlier filing date as may be required by the Commission, and (ii) unless and until a Form 15 Suspension Notice shall have been filed, March 31 of each year thereafter, or such earlier filing date as may be required by the Commission, the Securities Administrator shall prepare and file a Form 10-K, in substance conforming to industry standards, with respect to the Trust. Such Form 10-K shall include the Master Servicer Certification and other documentation provided by the Master Servicer pursuant to the second preceding sentence. The Depositor hereby grants to the Securities Administrator a limited power of attorney to execute and file each such document on behalf of the Depositor. Such power of attorney shall continue until either the earlier of (i) receipt by the Securities Administrator from the Depositor of written termination of such power of attorney and (ii) the termination of the Trust Fund. The Depositor agrees to promptly furnish to the Securities Administrator, from time to time upon request, such further information, reports and financial statements within its control related to this Agreement and the Mortgage Loans as the Securities Administrator reasonably deems appropriate to prepare and file all necessary reports with the Commission. The Securities Administrator shall have no responsibility to file any items other than those specified in this Section 3.18; provided, however, the Securities Administrator will cooperate with the Depositor in connection with any additional filings with respect to the Trust Fund as the Depositor deems necessary under the Securities Exchange Act of 1934, as amended (the “Exchange Act”). Fees and expenses incurred by the Securities Administrator in connection with this Section 3.18 shall not be reimbursable from the Trust Fund.

Section 3.19 The Company. On the Closing Date, the Company will receive from the Depositor a payment of $5,000.

Section 3.20 UCC. The Depositor shall inform the Trustee in writing of any Uniform Commercial Code financing statements that were filed on the Closing Date in connection with the Trust with stamped recorded copies of such financing statements to be delivered to the Trustee promptly upon receipt by the Depositor. The Depositor shall file any financing statements or amendments thereto required by any change in the Uniform Commercial Code.

Section 3.21 Optional Purchase of Defaulted Mortgage Loans.

(a) With respect to any Mortgage Loan which as of the first day of a Fiscal Quarter is delinquent in payment by 120 days or more or is an REO Property, the Company shall have the right to purchase such Mortgage Loan from the Trust at a price equal to the Repurchase Price; provided however (i) that such Mortgage Loan is still 120 days or more delinquent or is an REO Property as of the date of such purchase and (ii) this purchase option, if not theretofore exercised, shall terminate on the date prior to the last day of the related Fiscal Quarter. This purchase option, if not exercised, shall not be thereafter reinstated unless the delinquency is cured and the Mortgage Loan thereafter again becomes 120 days or more delinquent or becomes an REO Property, in which case the option shall again become exercisable as of the first day of the related Fiscal Quarter.

(b) If at any time the Company remits to the Master Servicer a payment for deposit in the Distribution Account covering the amount of the Repurchase Price for such a Mortgage Loan, and the Company provides to the Trustee a certification signed by a Servicing Officer stating that the amount of such payment has been deposited in the Distribution Account, then the Trustee shall execute the assignment of such Mortgage Loan to the Company at the request of the Company without recourse, representation or warranty and the Company shall succeed to all of the Trustee’s right, title and interest in and to such Mortgage Loan, and all security and documents relative thereto. Such assignment shall be an assignment outright and not for security. The Company will thereupon own such Mortgage, and all such security and documents, free of any further obligation to the Trustee or the Certificateholders with respect thereto.

ARTICLE IV

ACCOUNTS

Section 4.01 Protected Account. (a) The Master Servicer shall enforce the obligation of the Servicer to establish and maintain a Protected Account in accordance with the Servicing Agreement, with records to be kept with respect thereto on a Mortgage Loan by Mortgage Loan basis, into which accounts shall be deposited within 48 hours (or as of such other time specified in the Servicing Agreement) of receipt, all collections of principal and interest on any Mortgage Loan and with respect to any REO Property received by the Servicer, including Principal Prepayments, Insurance Proceeds, Liquidation Proceeds and advances made from the Servicer’s own funds (less servicing compensation as permitted by the Servicing Agreement in the case of the Servicer) and all other amounts to be deposited in the Protected Account. The Servicer is hereby authorized to make withdrawals from and deposits to the related Protected Account for purposes required or permitted by this Agreement. To the extent provided in the Servicing Agreement, the Protected Account shall be held by a Designated Depository Institution and segregated on the books of such institution in the name of the Securities Administrator on behalf of the Trustee for the benefit of Certificateholders.

(b) To the extent provided in the Servicing Agreement, amounts on deposit in a Protected Account may be invested in Permitted Investments in the name of the Securities Administrator on behalf of the Trustee for the benefit of Certificateholders and, except as provided in the preceding paragraph, not commingled with any other funds. Such Permitted Investments shall mature, or shall be subject to redemption or withdrawal, no later than the date on which such funds are required to be withdrawn for deposit in the Distribution Account, and shall be held until required for such deposit. The income earned from Permitted Investments made pursuant to this Section 4.01 shall be paid to the Servicer under the Servicing Agreement, and the risk of loss of moneys required to be distributed to the Certificateholders resulting from such investments shall be borne by and be the risk of the Servicer. The Servicer (to the extent provided in the Servicing Agreement) shall deposit the amount of any such loss in the Protected Account within two Business Days of receipt of notification of such loss but not later than the second Business Day prior to the Distribution Date on which the moneys so invested are required to be distributed to the Certificateholders.

(c) To the extent provided in the Servicing Agreement and subject to this Article IV, on or before each Servicer Remittance Date, the Servicer shall withdraw or shall cause to be withdrawn from the Protected Account and shall immediately deposit or cause to be deposited in the Distribution Account amounts representing the following collections and payments (other than with respect to principal of or interest on the Mortgage Loans due on or before the Cut-off Date):

(i) Scheduled Payments on the Mortgage Loans received or any related portion thereof advanced by the Servicer pursuant to the Servicing Agreement which were due during or before the related Due Period, net of the amount thereof comprising its Servicing Fee;

(ii) Full Principal Prepayments and any Liquidation Proceeds received by the Servicer with respect to the Mortgage Loans in the related Prepayment Period (or, in the case of Subsequent Recoveries, during the related Due Period), with interest to the date of prepayment or liquidation, net of the amount thereof comprising its Servicing Fee;

(iii) Partial Principal Prepayments received by the Servicer for the Mortgage Loans in the related Prepayment Period; and

(iv) Any amount to be used as a Monthly Advance.

(d) Withdrawals may be made from an Account only to make remittances as provided in Section 4.01(c); to reimburse the Master Servicer or the Servicer for Monthly Advances which have been recovered by subsequent collections from the related Mortgagor; to remove amounts deposited in error; to remove fees, charges or other such amounts deposited on a temporary basis; or to clear and terminate the account at the termination of this Agreement in accordance with Section 10.01. As provided in Sections 4.01(c) certain amounts otherwise due to the Servicer may be retained by them and need not be deposited in the Distribution Account.

Section 4.02 [Reserved].

Section 4.03 [Reserved].

Section 4.04 Distribution Account. (a) The Securities Administrator shall establish and maintain in the name of the Securities Administrator on behalf of the Trustee, for the benefit of the Certificateholders, the Distribution Account as a segregated trust account or accounts. The Securities Administrator shall deposit into the Distribution Account all amounts in respect to Available Funds received by it from the Master Servicer or from EMC. The Securities Administrator will promptly notify the Master Servicer in the event that the Securities Adminstrator does not receive a remittance from the Servicer on any Distribution Account Deposit Date.

(b) All amounts deposited to the Distribution Account shall be held by the Securities Administrator in the name of the Securities Administrator on behalf of the Trustee in trust for the benefit of the Certificateholders in accordance with the terms and provisions of this Agreement.

(c) The Distribution Account shall constitute a trust account of the Trust Fund segregated on the books of the Securities Administrator and held by the Securities Administrator in trust in its Corporate Trust Office, and the Distribution Account and the funds deposited therein shall not be subject to, and shall be protected from, all claims, liens, and encumbrances of any creditors or depositors of the Securities Administrator or the Master Servicer (whether made directly, or indirectly through a liquidator or receiver of the Securities Administrator or the Master Servicer). The Distribution Account shall be an Eligible Account. The amount at any time credited to the Distribution Account shall be (i) held in cash and fully insured by the FDIC to the maximum coverage provided thereby or (ii) invested in the name of the Securities Administrator on behalf of the Trustee, in such Permitted Investments selected by the Securities Administrator or deposited in demand deposits with such depository institutions as selected by

the Securities Administrator, provided that time deposits of such depository institutions would be a Permitted Investment. All Permitted Investments shall mature or be subject to redemption or withdrawal on or before, and shall be held until, the next succeeding Distribution Date if the obligor for such Permitted Investment is the Securities Administrator or, if such obligor is any other Person, the Business Day preceding such Distribution Date. All investment earnings on amounts on deposit in the Distribution Account or benefit from funds uninvested therein from time to time shall be for the account of the Master Servicer. The Master Servicer shall be permitted to withdraw or receive distribution of any and all investment earnings from the Distribution Account on each Distribution Date. If there is any loss on a Permitted Investment or demand deposit, the Master Servicer shall remit the amount of such loss to the Securities Administrator for deposit in the Distribution Account. With respect to the Distribution Account and the funds deposited therein, the Securities Administrator shall take such action as may be necessary to ensure that the Certificateholders shall be entitled to the priorities afforded to such a trust account (in addition to a claim against the estate of the Trustee) as provided by 12 U.S.C. § 92a(e), and applicable regulations pursuant thereto, if applicable, or any applicable comparable state statute applicable to state chartered banking corporations.

Section 4.05 Permitted Withdrawals and Transfers from the Distribution Account. (a) The Securities Administrator will, from time to time on demand of the Master Servicer, make or cause to be made such withdrawals or transfers from the Distribution Account as the Master Servicer has designated for such transfer or withdrawal pursuant to this Agreement and the Servicing Agreement or as the Securities Administrator deems necessary for the following purposes:

(i) to reimburse the Master Servicer or the Servicer for any Monthly Advance of its own funds, the right of the Master Servicer or the Servicer to reimbursement pursuant to this subclause (i) being limited to amounts received on a particular Mortgage Loan (including, for this purpose, the Repurchase Price therefor, Insurance Proceeds and Liquidation Proceeds) which represent late payments or recoveries of the principal of or interest on such Mortgage Loan with respect to which such Monthly Advance was made;

(ii) to reimburse the Master Servicer or the Servicer from Insurance Proceeds or Liquidation Proceeds relating to a particular Mortgage Loan for amounts expended by the Master Servicer or the Servicer in good faith in connection with the restoration of the related Mortgaged Property which was damaged by an Uninsured Cause or in connection with the liquidation of such Mortgage Loan;

(iii) to reimburse the Master Servicer or the Servicer from Insurance Proceeds relating to a particular Mortgage Loan for insured expenses incurred with respect to such Mortgage Loan and to reimburse the Master Servicer or the Servicer from Liquidation Proceeds from a particular Mortgage Loan for Liquidation Expenses incurred with respect to such Mortgage Loan; provided that the Master Servicer shall not be entitled to reimbursement for Liquidation Expenses with respect to a Mortgage Loan to the extent that (i) any amounts with respect to such Mortgage Loan were paid as Excess Liquidation Proceeds pursuant to clause (xi) of this Section 4.05(a) to the Master Servicer; and (ii) such Liquidation Expenses were not included in the computation of such Excess Liquidation Proceeds;

(iv) to pay the Master Servicer or the Servicer, as appropriate, from Liquidation Proceeds or Insurance Proceeds received in connection with the liquidation of any Mortgage Loan, the amount which the Master Servicer or the Servicer would have been entitled to receive under clause (ix) of this Section 4.05(a) as servicing compensation on account of each defaulted scheduled payment on such Mortgage Loan if paid in a timely manner by the related Mortgagor;

(v) to pay the Master Servicer or the Servicer from the Repurchase Price for any Mortgage Loan, the amount which the Master Servicer or the Servicer would have been entitled to receive under clause (ix) of this Section 4.05(a) as servicing compensation;

(vi) to reimburse the Master Servicer or the Servicer for advances of funds (other than Monthly Advances) made with respect to the Mortgage Loans, and the right to reimbursement pursuant to this clause being limited to amounts received on the related Mortgage Loan (including, for this purpose, the Repurchase Price therefor, Insurance Proceeds and Liquidation Proceeds) which represent late recoveries of the payments for which such advances were made;

(vii) to reimburse the Master Servicer or the Servicer for any Monthly Advance or advance, after a Realized Loss has been allocated with respect to the related Mortgage Loan if the Monthly Advance or advance has not been reimbursed pursuant to clauses (i) and (vi);

(viii) to pay the Master Servicer as set forth in Section 3.14;

(ix) to reimburse the Master Servicer for expenses, costs and liabilities incurred by and reimbursable to it pursuant to Sections 3.03, 7.04(c) and (d);

(x) to pay to the Master Servicer, as additional servicing compensation, any Excess Liquidation Proceeds to the extent not retained by the Servicer;

(xi) to reimburse or pay the Servicer any such amounts as are due thereto under the Servicing Agreement and have not been retained by or paid to the Servicer, to the extent provided in the Servicing Agreement;

(xii) to reimburse the Trustee, the Securities Administrator or the Custodian for expenses, costs and liabilities incurred by or reimbursable to it pursuant to this Agreement;

(xiii) to remove amounts deposited in error; and

(xiv) to clear and terminate the Distribution Account pursuant to Section 10.01.

(b) The Master Servicer shall keep and maintain separate accounting, on a Mortgage Loan by Mortgage Loan basis and shall provide a copy to the Securities Administrator, for the purpose of accounting for any reimbursement from the Distribution Account pursuant to clauses

(i) through (vi) and (viii) or with respect to any such amounts which would have been covered by such clauses had the amounts not been retained by the Master Servicer without being deposited in the Distribution Account under Section 4.02(b).

(c) On each Distribution Date, the Securities Administrator shall distribute the Available Funds to the extent on deposit in the Distribution Account to the Holders of the Certificates in accordance with Section 6.01.

Section 4.06 Class A/B Reserve Fund. [TO BE CONFIRMED] (a) No later than the Closing Date, the Paying Agent shall establish and maintain a segregated trust account or sub-account of a trust account, which shall be titled “Class A/B Reserve Fund, Xxxxx Fargo Bank, National Association, as trustee for the benefit of holders of Structured Asset Mortgage Investments II Inc., MortgageIT Trust 2005-AR1, Mortgage Pass-Through Certificates, Series 2005-AR1” (the “Class A/B Reserve Fund”). The Class A/B Reserve Fund shall be an Eligible Account or a sub-account of an Eligible Account. On the Closing Date, the Depositor shall pay to the Paying Agent an amount equal to $[________] which shall be deposited by the Paying Agent into the Class A/B Reserve Fund. Pursuant to Section 6.01, for each of the first three Distribution Dates, amounts on deposit in the Class A/B Reserve Fund will be withdrawn from the Class A/B Reserve Fund, to the extent available, and deposited into the Distribution Account for payment to the Class I-A Certificates and the Class I-B Certificates to the extent that Accrued Certificate Interest on such Classes of Certificates is reduced by application of the Net Rate Cap on such Distribution Dates. The Class A/B Reserve Fund will not be entitled to be replenished and will be closed when the amounts on deposit have been reduced to zero. On the third Distribution Date, any remaining amounts in the Class A/B Reserve Fund will be distributed to the Depositor or its designee, and following such withdrawal the Class A/B Reserve Fund will be closed.

(b) The Paying Agent will invest funds deposited in the Class A/B Reserve Fund as directed by the Depositor or its designee in writing in Permitted Investments with a maturity date (i) no later than the Business Day immediately preceding the date on which such funds are required to be withdrawn from such account pursuant to this Agreement, if a Person other than the Paying Agent or an Affiliate of the Paying Agent is the obligor for the Permitted Investment, or (ii) no later than the date on which such funds are required to be withdrawn from such account or sub account of a trust account pursuant to this Agreement, if the Paying Agent or an affiliate of the Paying Agent is the obligor for the Permitted Investment (or, if no written direction is received by the Paying Agent from the Depositor, then funds in such account shall remain uninvested). For federal income tax purposes, the Depositor shall be the owner of the Class A/B Reserve Fund and shall report all items of income, deduction, gain or loss arising therefrom. At no time will the Class A/B Reserve Fund be an asset of any REMIC created hereunder. All income and gain realized from investment of funds deposited in the Class A/B Reserve Fund, which investment shall be made solely upon the written direction of the Depositor, shall be for the sole and exclusive benefit of the Depositor and shall be remitted by the Paying Agent to the Depositor within one Business Day from the closing of the Class A/B Reserve Fund. The Depositor shall deposit in the Class A/B Reserve Fund the amount of any net loss incurred in respect of any such Permitted Investment immediately upon realization of such loss.

Section 4.07 [Reserved].

Section 4.08 Corridor Contract Reserve Account. (a) The Securities Administrator shall establish and maintain in its name on behalf of the Trustee, for the benefit of the Class I-A, Class I-B-1 and Class I-B-2 Certificateholders of the Class I-A, Class I-B-1 and Class I-B-2 Certificates, the Corridor Contract Reserve Account as a segregated trust account or accounts.

(b) All amounts deposited to the Corridor Contract Reserve Account pursuant to Section 6.01(f) shall be held by the Securities Administrator in its name on behalf of the Trustee, in trust for the benefit of the Certificateholders of the Class I-A, Class I-B-1 and Class I-B-2 Certificates in accordance with the terms and provisions of this Agreement. No other Class of Certificates will be entitled to any payments under the Corridor Contracts.

(c) The Corridor Contract Reserve Account is an “outside reserve fund” within the meaning of Treasury Regulation '1.860G-2(h) and shall be an asset of the Trust Fund but not an asset of any 2005-1 REMIC. The Securities Administrator on behalf of the Trust shall be the nominal owner of the Corridor Contract Reserve Account. Amounts in the Corridor Contract Reserve Account shall, at the direction of the Depositor, be held either uninvested in a trust or deposit account of the Securities Administrator with no liability for interest or other compensation thereon or invested in Permitted Investments in the name of the Securities Administrator on behalf of the Trustee as selected by the Depositor that mature no later than the Business Day prior to the next succeeding Distribution Date. Any losses on such investments shall be deposited in the Corridor Contract Reserve Account by the Depositor out of its own funds immediately as realized.

(d) On each Distribution Date, the Securities Administrator shall distribute amounts on deposit in the Corridor Contract Reserve Account to the Holders of the Class I-A, Class I-B-1 and Class I-B-2 Certificates, as applicable, no later than one Business Day prior to such Distribution Date in accordance with Section 6.01(f).

Section 4.09 Class XP Reserve Account. (a) The Master Servicer shall establish and maintain with itself a separate, segregated trust account, which shall be an Eligible Account, titled “Reserve Account in the name of the Securities Administrator on behalf of the Trustee for the benefit of holders of Structured Asset Mortgage Investments II Inc., MortgageIT Trust 2005-AR1, Mortgage Pass-Through Certificates, Series 2005-AR1, Class XP." Funds on deposit in the Class XP Reserve Account shall be held in trust by the Securities Administrator for the holder of the Class XP Certificates. The Class XP Reserve Account will not represent an interest in any REMIC.

(b) Any amount on deposit in the Class XP Reserve Account shall be held uninvested. On the Business Day prior to each Distribution Date, the Securities Administrator shall withdraw the amount then on deposit in the Class XP Reserve Account and deposit such amount into the Distribution Account to be distributed to the Holders of the Class XP Certificates in accordance with Section 6.01(h). In addition, on the earlier of (x) the Business Day prior to the Distribution Date on which all the assets of the Trust Fund are repurchased as described in Section 10.01(a), and (y) the Business Day prior to the Distribution Date occurring in November 2011, the Securities Administrator shall withdraw the amount on deposit in the Class XP Reserve Account and deposit such amount into the Distribution Account and pay such amount to the Class XP Certificates in accordance with Section 6.01(h), and following such

withdrawal the Class XP Reserve Account shall be closed.

ARTICLE V

CERTIFICATES

Section 5.01 Certificates. (a) The Depository, the Depositor and the Securities Administrator have entered into a Depository Agreement dated as of the Closing Date (the “Depository Agreement”). Except for the Residual Certificates, the Private Certificates and the Individual Certificates and as provided in Section 5.01(b), the Certificates shall at all times remain registered in the name of the Depository or its nominee and at all times: (i) registration of such Certificates may not be transferred by the Securities Administrator except to a successor to the Depository; (ii) ownership and transfers of registration of such Certificates on the books of the Depository shall be governed by applicable rules established by the Depository; (iii) the Depository may collect its usual and customary fees, charges and expenses from its Depository Participants; (iv) the Securities Administrator shall deal with the Depository as representative of such Certificate Owners of the respective Class of Certificates for purposes of exercising the rights of Certificateholders under this Agreement, and requests and directions for and votes of such representative shall not be deemed to be inconsistent if they are made with respect to different Certificate Owners; and (v) the Trustee and the Securities Administrator may rely and shall be fully protected in relying upon information furnished by the Depository with respect to its Depository Participants.

The Residual Certificates and the Private Certificates are initially Physical Certificates. If at any time the Holders of all of the Certificates of one or more such Classes request that the Securities Administrator cause such Class to become Global Certificates, the Securities Administrator and the Depositor will take such action as may be reasonably required to cause the Depository to accept such Class or Classes for trading if it may legally be so traded.

All transfers by Certificate Owners of such respective Classes of Book-Entry Certificates and any Global Certificates shall be made in accordance with the procedures established by the Depository Participant or brokerage firm representing such Certificate Owners. Each Depository Participant shall only transfer Book-Entry Certificates of Certificate Owners it represents or of brokerage firms for which it acts as agent in accordance with the Depository’s normal procedures.

(b) If (i)(A) the Depositor advises the Securities Administrator in writing that the Depository is no longer willing or able to properly discharge its responsibilities as Depository and (B) the Depositor is unable to locate a qualified successor within 30 days or (ii) the Depositor at its option advises the Securities Administrator in writing that it elects to terminate the book-entry system through the Depository, the Securities Administrator shall request that the Depository notify all Certificate Owners of the occurrence of any such event and of the availability of definitive, fully registered Certificates to Certificate Owners requesting the same. Upon surrender to the Securities Administrator of the Certificates by the Depository, accompanied by registration instructions from the Depository for registration, the Securities Administrator shall issue the definitive Certificates.

In addition, if an Event of Default has occurred and is continuing, each Certificate Owner materially adversely affected thereby may at its option request a definitive Certificate evidencing such Certificate Owner’s interest in the related Class of Certificates. In order to make such

request, such Certificate Owner shall, subject to the rules and procedures of the Depository, provide the Depository or the related Depository Participant with directions for the Securities Administrator to exchange or cause the exchange of the Certificate Owner’s interest in such Class of Certificates for an equivalent interest in fully registered definitive form. Upon receipt by the Securities Administrator of instructions from the Depository directing the Securities Administrator to effect such exchange (such instructions to contain information regarding the Class of Certificates and the Current Principal Balance being exchanged, the Depository Participant account to be debited with the decrease, the registered holder of and delivery instructions for the definitive Certificate, and any other information reasonably required by the Securities Administrator), (i) the Securities Administrator shall instruct the Depository to reduce the related Depository Participant’s account by the aggregate Current Principal Balance of the definitive Certificate, (ii) the Securities Administrator shall execute and deliver, in accordance with the registration and delivery instructions provided by the Depository, a Definitive Certificate evidencing such Certificate Owner’s interest in such Class of Certificates and (iii) the Securities Administrator shall execute a new Book-Entry Certificate reflecting the reduction in the aggregate Current Principal Balance of such Class of Certificates by the amount of the definitive Certificates.

Neither the Depositor nor the Securities Administrator shall be liable for any delay in the delivery of any instructions required pursuant to this Section 5.01(b) and may conclusively rely on, and shall be protected in relying on, such instructions.

(c) (i) As provided herein, the REMIC Administrator will make an election to treat the segregated pool of assets consisting of the Mortgage Loans and certain other related assets subject to this Agreement as a REMIC for federal income tax purposes, and such segregated pool of assets will be designated as “REMIC I.” Component I of the Class R Certificates will represent the sole Class of “residual interests” in REMIC I for purposes of the REMIC Provisions (as defined herein) under federal income tax law. The following table irrevocably sets forth the designation, pass-through rate (the “Uncertificated Pass-Through Rate”) and initial Uncertificated Principal Balance for each of the “regular interests” in REMIC I (the “REMIC I Regular Interests”). The “latest possible maturity date” (determined solely for purposes of satisfying Treasury regulation Section 1.860G-1(a)(4)(iii)) for each REMIC I Regular Interest shall be the Maturity Date. None of the REMIC I Regular Interests will be certificated.

Designation s	Uncertificated REMIC I Pass-Through Rate	Initial Uncertificated Principal Balance	Latest Possible Maturity Date*
LT1	Variable(1)	$[___________]	November 25
LT2	Variable(1)	$[___________]	November 25
LT3	0.00%	$[___________]	November 25
LT4	Variable(1)	$[___________]	November 25
LT5	Variable(1)	$[___________]	November 25
LT6	Variable(1)	$[___________]	November 25
LT7	0.00%	$[___________]	November 25
LT8	Variable(1)	$[___________]	November 25
XP	(2)	$100	November 25

* The Distribution Date in the specified month, which is the month following the month the latest maturing Mortgage Loan matures. For federal income tax purposes, for each REMIC I Regeular Interest, the “latest possible maturity date” shall be the Final Maturity Date.

(1) Calculated as provided in the definition of Uncertificated REMIC I Pass-Through Rate.

(2) REMIC I Regular Interest XP will not bear interest.

(ii) REMIC II will be evidenced by (x) the REMIC II Regular Interests (designated below), which will be uncertificated and non-transferable and are hereby designated as the “regular interests” in REMIC II and have the principal balances and accrue interest at the Pass-Through Rates equal to those set forth in this Section 5.01(c)(ii) and (y) an interest in the Class R Certificates designated as Component II thereof, which is hereby designated as the single “residual interest” in REMIC II. For federal income tax purposes, payment of any Carryover Shortfall Amount to any Class of Certificates shall be treated as paid outside of any REMIC formed under this Agreement and shall not be part of the entitlement of the REMIC II Regular Interest related to the Class of Certificates receiving such payment.

The Classes of the Certificates shall have the following designations, initial principal amounts and Pass-Through Rates:

Designation	Initial Principal	Pass-Through Rate
I-A-1	$211,495,000	(1)
I-A-2	$105,748,000	(2)
I-A-3	$35,249,000	(3)
I-X-1	$0	(4)
I-M-X	$0	(5)
I-B-1	$11,239,000	(6)
I-B-2	$8,333,000	(7)
I-B-3	$5,813,000	(8)
I-B-4	$3,876,000	(9)
I-B-5	$3,294,000	(9)
I-B-6	$2,519,313	(9)
R	$100	(10)
XP	$100	(11)

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(1)	The Class I-A-1 Certificates will bear interest at a Pass-Through Rate equal to the least of (i) One-Month LIBOR plus the related Margin, (ii) 10.50% per annum and (iii) the Net Rate Cap.

(2)	The Class I-A-2 Certificates will bear interest at a Pass-Through Rate equal to the least of (i) One-Month LIBOR plus the related Margin, (ii) 10.50% per annum and (iii) the Net Rate Cap.

(3)	The Class I-A-3 Certificates will bear interest at a Pass-Through Rate equal to the least of (i) One-Month LIBOR plus the related Margin, (ii) 10.50% per annum and (iii) the Net Rate Cap.

(4)	The Class I-X-1 Certificates will bear interest in an amount equal to the excess, if any, of interest accruing for that Interest Accrual Period at the Net Rate Cap on the Class I-X-1 Notional Amount, calculated on the basis of a year of 360 days with twelve 30 day months, over the amount of Accrued Certificate Interest on the Class I-A Certificates for the related Distribution Date, without giving effect to any reduction for interest shortfalls on the Mortgage Loans.

For federal income tax purposes the combination of the foregoing rates,which represents the rate for the entire REMIC II Regular Interest I-X-1 is expressed as: a rate per annum equal to the percentage equivalent of a fraction, the numerator of which is the sum of the amounts calculated pursuant to clauses (i) through (iii) below, and the denominator of which is the aggregate principal balance of REMIC I Regular Interests LT1, LT2, LT3 and LT4. For purposes of calculating the Pass-Through Rate for the Class I-X-1 Certificates or REMIC II Regular Interest I-X-1, the numerator is equal to the sum of the following components:

(i) the Uncertificated Pass-Through Rate for REMIC I Regular Interest LT1 minus the related Marker Rate, applied to a notional amount equal to the Uncertificated Principal Balance of REMIC I Regular Interest LT1;

(ii) the Uncertificated Pass-Through Rate for REMIC I Regular Interest LT2 minus the related Marker Rate, applied to a notional amount equal to the Uncertificated Principal Balance of REMIC I Regular Interest LT2; and

(iii) the Uncertificated Pass-Through Rate for REMIC I Regular Interest LT4 minus twice the related Marker Rate, applied to a notional amount equal to the Uncertificated Principal Balance of REMIC I Regular Interest LT4.

(5)

The Class I-M-X Certificates will bear interest in an amount equal to the excess, if any, of interest accruing for that Interest Accrual Period at the Net Rate Cap on the Class I-M-X Notional Amount, calculated on the basis of a year of 360 days with twelve 30 day months, over the amount of Accrued Certificate Interest on the Class I-B Certificates for the related Distribution Date, without giving effect to any reduction for interest shortfalls on the Mortgage Loans.

For federal income tax purposes the foregoing rate is expressed as a rate per annum equal to the percentage equivalent of a fraction, the numerator of which is the sum of the amounts calculated pursuant to clauses (i) through (iii) below, and the denominator of which is the aggregate principal balance of REMIC I Regular Interests LT5, LT6, LT7 and LT8. For purposes of calculating the Pass-Through Rate for the Class I-M-X Certificates or REMIC II Regular Interest I-M-X, the numerator is equal to the sum of the following components:

(i) the Uncertificated Pass-Through Rate for REMIC I Regular Interest LT5 minus the related Marker Rate, applied to a notional amount equal to the Uncertificated Principal Balance of REMIC I Regular Interest LT5;

(ii) the Uncertificated Pass-Through Rate for REMIC I Regular Interest LT6 minus the related Marker Rate, applied to a notional amount equal to the Uncertificated Principal Balance of REMIC I Regular Interest LT6; and

(iii) the Uncertificated Pass-Through Rate for REMIC I Regular Interest LT8 minus twice the related Marker Rate, applied to a notional amount equal to the Uncertificated Principal Balance of REMIC I Regular Interest LT8.

(6)	The Class I-B-1 Certificates will bear interest at a Pass-Through Rate equal to the least of (i) One-Month LIBOR plus the related Margin, (ii) 10.50% per annum and (iii) the Net Rate Cap.

(7)	The Class I-B-2 Certificates will bear interest at a Pass-Through Rate equal to the least of (i) One-Month LIBOR plus the related Margin, (ii) 10.50% per annum and (iii) the Net Rate Cap.

(8)	The Class I-B-3 Certificates will bear interest at a Pass-Through Rate equal to the least of (i) One-Month LIBOR plus the related Margin, (ii) 10.50% per annum and (iii) the Net Rate Cap.

(9)	The Class I-B-4, Class I-B-5 and Class I-B-6 Certificates will bear interest at a Pass-Through Rate equal to the least of (i) One-Month LIBOR plus the related Margin, (ii) 10.50% per annum and (iii) the Net Rate Cap.

(10)	The Class R Certificates will not bear interest.

(11)	The Class XP Certificates will not bear any interest. The Class XP Certificates will be entitled to receive Prepayment Charges collected with respect to the Prepayment Charge Loans.

(d) Solely for purposes of Section 1.860G-1(a)(4)(iii) of the Treasury regulations, the Distribution Date immediately following the maturity date for the Mortgage Loan with the latest maturity date in the Trust Fund has been designated as the “latest possible maturity date” for the REMIC I Regular Interests, the REMIC II Regular Interests and the Certificates.

(e) With respect to each Distribution Date, each Class of Certificates shall accrue interest during the related Interest Accrual Period. With respect to each Distribution Date and (i) each Class of Class X Certificates, interest shall be calculated on the basis of a 360-day year comprised of twelve 30-day months and (ii) each Class of Class I-A Certificates and Class I-B Certificates, interest shall be calculated on the basis of a 360-day year and the actual number of days elapsed, in each case, based upon the respective Pass-Through Rate set forth, or determined as provided, above and the Current Principal Amount of such Class applicable to such Distribution Date.

(f) The Certificates shall be substantially in the forms set forth in Exhibits X-0, X-0, X-0, X-0 and A-5. On original issuance, the Securities Administrator shall sign, countersign and shall deliver them at the direction of the Depositor. Pending the preparation of definitive Certificates of any Class, the Securities Administrator may sign and countersign temporary Certificates that are printed, lithographed or typewritten, in authorized denominations for Certificates of such Class, substantially of the tenor of the definitive Certificates in lieu of which they are issued and with such appropriate insertions, omissions, substitutions and other variations as the officers or authorized signatories executing such Certificates may determine, as evidenced by their execution of such Certificates. If temporary Certificates are issued, the Depositor will cause definitive Certificates to be prepared without unreasonable delay. After the preparation of definitive Certificates, the temporary Certificates shall be exchangeable for definitive Certificates upon surrender of the temporary Certificates at the office of the Securities Administrator, without charge to the Holder. Upon surrender for cancellation of any one or more temporary Certificates, the Securities Administrator shall sign and countersign and deliver in exchange therefor a like aggregate principal amount, in authorized denominations for such Class, of definitive Certificates of the same Class. Until so exchanged, such temporary Certificates shall in all respects be entitled to the same benefits as definitive Certificates.

(g) Each Class of Book-Entry Certificates will be registered as a single Certificate of such Class held by a nominee of the Depository or the DTC Custodian, and beneficial interests will be held by investors through the book-entry facilities of the Depository in minimum denominations of, in the case of the Offered Certificates (other than the Residual Certificates), $25,000 and in each case increments of $1,000 in excess thereof, except that one Certificate of

each such Class may be issued in a different amount so that the sum of the denominations of all outstanding Certificates of such Class shall equal the Current Principal Amount of such Class on the Closing Date. On the Closing Date, the Securities Administrator shall execute and countersign Physical Certificates all in an aggregate principal amount that shall equal the Current Principal Amount of such Class on the Closing Date. The Private Certificates shall be issued in certificated fully-registered form in minimum dollar denominations of $25,000 and integral multiples of $1,000 in excess thereof, except that one Private Certificate of each Class may be issued in a different amount so that the sum of the denominations of all outstanding Private Certificates of such Class shall equal the Current Principal Amount of such Class on the Closing Date. The Residual Certificates shall each be issued in certificated fully-registered form in the denomination of $100. Each Class of Global Certificates, if any, shall be issued in fully registered form in minimum dollar denominations of $25,000 and integral multiples of $1,000 in excess thereof, except that one Certificate of each Class may be in a different denomination so that the sum of the denominations of all outstanding Certificates of such Class shall equal the Current Principal Amount of such Class on the Closing Date. On the Closing Date, the Securities Administrator shall execute and countersign (i) in the case of each Class of Offered Certificates, the Certificate in the entire Current Principal Amount of the respective Class and (ii) in the case of each Class of Private Certificates, Individual Certificates all in an aggregate principal amount that shall equal the Current Principal Amount of each such respective Class on the Closing Date. The Certificates referred to in clause (i) and if at any time there are to be Global Certificates, the Global Certificates shall be delivered by the Depositor to the Depository or pursuant to the Depository’s instructions, shall be delivered by the Depositor on behalf of the Depository to and deposited with the DTC Custodian. The Securities Administrator shall sign the Certificates by facsimile or manual signature and countersign them by manual signature on behalf of the Securities Administrator by one or more authorized signatories, each of whom shall be Responsible Officers of the Securities Administrator or its agent. A Certificate bearing the manual and facsimile signatures of individuals who were the authorized signatories of the Securities Administrator or its agent at the time of issuance shall bind the Securities Administrator, notwithstanding that such individuals or any of them have ceased to hold such positions prior to the delivery of such Certificate.

(h) No Certificate shall be entitled to any benefit under this Agreement, or be valid for any purpose, unless there appears on such Certificate the manually executed countersignature of the Securities Administrator or its agent, and such countersignature upon any Certificate shall be conclusive evidence, and the only evidence, that such Certificate has been duly executed and delivered hereunder. All Certificates issued on the Closing Date shall be dated the Closing Date. All Certificates issued thereafter shall be dated the date of their countersignature.

(i) The Closing Date is hereby designated as the “startup” day of each 2005-AR1 REMIC within the meaning of Section 860G(a)(9) of the Code.

(j) For federal income tax purposes, each 2005-AR1 REMIC shall have a tax year that is a calendar year and shall report income on an accrual basis.

(k) The Securities Administrator on behalf of the Trust shall cause each 2005-AR1 REMIC to timely elect to be treated as a REMIC under Section 860D of the Code. Any

inconsistencies or ambiguities in this Agreement or in the administration of any Trust established hereby shall be resolved in a manner that preserves the validity of such elections.

(l) The following legend shall be placed on the Residual Certificates, whether upon original issuance or upon issuance of any other Certificate of any such Class in exchange therefor or upon transfer thereof:

ANY RESALE, TRANSFER OR OTHER DISPOSITION OF THIS CERTIFICATE MAY BE MADE ONLY IF THE PROPOSED TRANSFEREE PROVIDES A TRANSFER AFFIDAVIT TO THE MASTER SERVICER AND THE SECURITIES ADMINISTRATOR THAT (1) SUCH TRANSFEREE IS NOT (A) THE UNITED STATES, ANY STATE OR POLITICAL SUBDIVISION THEREOF, ANY POSSESSION OF THE UNITED STATES, OR ANY AGENCY OR INSTRUMENTALITY OF ANY OF THE FOREGOING (OTHER THAN AN INSTRUMENTALITY WHICH IS A CORPORATION IF ALL OF ITS ACTIVITIES ARE SUBJECT TO TAX AND EXCEPT FOR XXXXXXX MAC, A MAJORITY OF ITS BOARD OF DIRECTORS IS NOT SELECTED BY SUCH GOVERNMENTAL UNIT), (B) A FOREIGN GOVERNMENT, ANY INTERNATIONAL ORGANIZATION, OR ANY AGENCY OR INSTRUMENTALITY OF EITHER OF THE FOREGOING, (C) ANY ORGANIZATION (OTHER THAN CERTAIN FARMERS’ COOPERATIVES DESCRIBED IN SECTION 521 OF THE CODE) WHICH IS EXEMPT FROM THE TAX IMPOSED BY CHAPTER 1 OF THE CODE UNLESS SUCH ORGANIZATION IS SUBJECT TO THE TAX IMPOSED BY SECTION 511 OF THE CODE (INCLUDING THE TAX IMPOSED BY SECTION 511 OF THE CODE ON UNRELATED BUSINESS TAXABLE INCOME), (D) RURAL ELECTRIC AND TELEPHONE COOPERATIVES DESCRIBED IN SECTION 1381(a)(2)(C) OF THE CODE, (E) AN ELECTING LARGE PARTNERSHIP UNDER SECTION 775(a) OF THE CODE (ANY SUCH PERSON DESCRIBED IN THE FOREGOING CLAUSES (A), (B), (C), (D) OR (E) BEING HEREIN REFERRED TO AS A “DISQUALIFIED ORGANIZATION”), OR (F) AN AGENT OF A DISQUALIFIED ORGANIZATION, (2) NO PURPOSE OF SUCH TRANSFER IS TO IMPEDE THE ASSESSMENT OR COLLECTION OF TAX AND (3) SUCH TRANSFEREE SATISFIES CERTAIN ADDITIONAL CONDITIONS RELATING TO THE FINANCIAL CONDITION OF THE PROPOSED TRANSFEREE. NOTWITHSTANDING THE REGISTRATION IN THE CERTIFICATE REGISTER OR ANY TRANSFER, SALE OR OTHER DISPOSITION OF THIS CERTIFICATE TO A DISQUALIFIED ORGANIZATION OR AN AGENT OF A DISQUALIFIED ORGANIZATION, SUCH REGISTRATION SHALL BE DEEMED TO BE OF NO LEGAL FORCE OR EFFECT WHATSOEVER AND SUCH PERSON SHALL NOT BE DEEMED TO BE A CERTIFICATEHOLDER FOR ANY PURPOSE HEREUNDER, INCLUDING, BUT NOT LIMITED TO, THE RECEIPT OF DISTRIBUTIONS ON THIS CERTIFICATE. EACH HOLDER OF THIS CERTIFICATE BY ACCEPTANCE OF THIS CERTIFICATE SHALL BE DEEMED TO HAVE CONSENTED TO THE PROVISIONS OF THIS PARAGRAPH.

Section 5.02 Registration of Transfer and Exchange of Certificates. (a) The Securities Administrator shall maintain at its Corporate Trust Office a Certificate Register in which, subject

to such reasonable regulations as it may prescribe, the Securities Administrator shall provide for the registration of Certificates and of transfers and exchanges of Certificates as herein provided.

(b) Subject to Section 5.01(a) and, in the case of any Global Certificate or Physical Certificate upon the satisfaction of the conditions set forth below, upon surrender for registration of transfer of any Certificate at any office or agency of the Securities Administrator maintained for such purpose, the Securities Administrator shall sign, countersign and shall deliver, in the name of the designated transferee or transferees, a new Certificate of a like Class and aggregate Fractional Undivided Interest, but bearing a different number.

(c) By acceptance of a Private Certificate or a Residual Certificate, whether upon original issuance or subsequent transfer, each holder of such Certificate acknowledges the restrictions on the transfer of such Certificate set forth in the Securities Legend and agrees that it will transfer such a Certificate only as provided herein. In addition to the provisions of Section 5.02(h), the following restrictions shall apply with respect to the transfer and registration of transfer of an Private Certificate or a Residual Certificate to a transferee that takes delivery in the form of an Individual Certificate:

(i) The Securities Administrator shall register the transfer of an Individual Certificate if the requested transfer is being made to a transferee who has provided the Securities Administrator with a Rule 144A Certificate or comparable evidence as to its QIB status.

(ii) The Securities Administrator shall register the transfer of any Individual Certificate if (x) the transferor has advised the Securities Administrator in writing that the Certificate is being transferred to an Institutional Accredited Investor along with facts surrounding the transfer as set forth in Exhibit F-1 hereto; and (y) prior to the transfer the transferee furnishes to the Securities Administrator an Investment Letter (and the Securities Administrator shall be fully protected in so doing), provided that, if based upon an Opinion of Counsel addressed to the Securities Administrator to the effect that the delivery of (x) and (y) above are not sufficient to confirm that the proposed transfer is being made pursuant to an exemption from, or in a transaction not subject to, the registration requirements of the Securities Act and other applicable laws, the Securities Administrator shall as a condition of the registration of any such transfer require the transferor to furnish such other certifications, legal opinions or other information prior to registering the transfer of an Individual Certificate as shall be set forth in such Opinion of Counsel.

(d) So long as a Global Certificate of such Class is outstanding and is held by or on behalf of the Depository, transfers of beneficial interests in such Global Certificate, or transfers by holders of Individual Certificates of such Class to transferees that take delivery in the form of beneficial interests in the Global Certificate, may be made only in accordance with Section 5.02(h), the rules of the Depository and the following:

(i) In the case of a beneficial interest in the Global Certificate being transferred to an Institutional Accredited Investor, such transferee shall be required to take delivery in the form of an Individual Certificate or Certificates and the Securities Administrator shall register such transfer only upon compliance with the provisions of Section 5.02(c)(ii).

(ii) In the case of a beneficial interest in a Class of Global Certificates being transferred to a transferee that takes delivery in the form of an Individual Certificate or Certificates of such Class, except as set forth in clause (i) above, the Securities Administrator shall register such transfer only upon compliance with the provisions of Section 5.02(c)(i).

(iii) In the case of an Individual Certificate of a Class being transferred to a transferee that takes delivery in the form of a beneficial interest in a Global Certificate of such Class, the Securities Administrator shall register such transfer if the transferee has provided the Securities Administrator with a Rule 144A Certificate or comparable evidence as to its QIB status.

(iv) No restrictions shall apply with respect to the transfer or registration of transfer of a beneficial interest in the Global Certificate of a Class to a transferee that takes delivery in the form of a beneficial interest in the Global Certificate of such Class; provided that each such transferee shall be deemed to have made such representations and warranties contained in the Rule 144A Certificate as are sufficient to establish that it is a QIB.

(e) Subject to Section 5.02(h), an exchange of a beneficial interest in a Global Certificate of a Class for an Individual Certificate or Certificates of such Class, an exchange of an Individual Certificate or Certificates of a Class for a beneficial interest in the Global Certificate of such Class and an exchange of an Individual Certificate or Certificates of a Class for another Individual Certificate or Certificates of such Class (in each case, whether or not such exchange is made in anticipation of subsequent transfer, and, in the case of the Global Certificate of such Class, so long as such Certificate is outstanding and is held by or on behalf of the Depository) may be made only in accordance with Section 5.02(h), the rules of the Depository and the following:

(i) A holder of a beneficial interest in a Global Certificate of a Class may at any time exchange such beneficial interest for an Individual Certificate or Certificates of such Class.

(ii) A holder of an Individual Certificate or Certificates of a Class may exchange such Certificate or Certificates for a beneficial interest in the Global Certificate of such Class if such holder furnishes to the Securities Administrator a Rule 144A Certificate or comparable evidence as to its QIB status.

(iii) A holder of an Individual Certificate of a Class may exchange such Certificate for an equal aggregate principal amount of Individual Certificates of such Class in different authorized denominations without any certification.

(f) (i) Upon acceptance for exchange or transfer of an Individual Certificate of a Class for a beneficial interest in a Global Certificate of such Class as provided herein, the Securities Administrator shall cancel such Individual Certificate and shall (or shall request the Depository to) endorse on the schedule affixed to the applicable Global Certificate (or on a continuation of such schedule affixed to the Global Certificate and made a part thereof) or otherwise make in its books and records an appropriate notation evidencing the date of such

exchange or transfer and an increase in the certificate balance of the Global Certificate equal to the certificate balance of such Individual Certificate exchanged or transferred therefor.

(ii) Upon acceptance for exchange or transfer of a beneficial interest in a Global Certificate of a Class for an Individual Certificate of such Class as provided herein, the Securities Administrator shall (or shall request the Depository to) endorse on the schedule affixed to such Global Certificate (or on a continuation of such schedule affixed to such Global Certificate and made a part thereof) or otherwise make in its books and records an appropriate notation evidencing the date of such exchange or transfer and a decrease in the certificate balance of such Global Certificate equal to the certificate balance of such Individual Certificate issued in exchange therefor or upon transfer thereof.

(g) The Securities Legend shall be placed on any Individual Certificate issued in exchange for or upon transfer of another Individual Certificate or of a beneficial interest in a Global Certificate.

(h) Subject to the restrictions on transfer and exchange set forth in this Section 5.02, the holder of any Individual Certificate may transfer or exchange the same in whole or in part (in an initial certificate balance equal to the minimum authorized denomination set forth in Section 5.01(g) or any integral multiple of $1.00 in excess thereof) by surrendering such Certificate at the Corporate Trust Office of the Securities Administrator, or at the office of any transfer agent, together with an executed instrument of assignment and transfer satisfactory in form and substance to the Securities Administrator in the case of transfer and a written request for exchange in the case of exchange. The holder of a beneficial interest in a Global Certificate may, subject to the rules and procedures of the Depository, cause the Depository (or its nominee) to notify the Securities Administrator in writing of a request for transfer or exchange of such beneficial interest for an Individual Certificate or Certificates. Following a proper request for transfer or exchange, the Securities Administrator shall, within five Business Days of such request made at the Corporate Trust Office of the Securities Administrator, sign, countersign and deliver at the Corporate Trust Office of the Securities Administrator, to the transferee (in the case of transfer) or holder (in the case of exchange) or send by first class mail at the risk of the transferee (in the case of transfer) or holder (in the case of exchange) to such address as the transferee or holder, as applicable, may request, an Individual Certificate or Certificates, as the case may require, for a like aggregate Fractional Undivided Interest and in such authorized denomination or denominations as may be requested. The presentation for transfer or exchange of any Individual Certificate shall not be valid unless made at the Corporate Trust Office of the Securities Administrator by the registered holder in person, or by a duly authorized attorney-in-fact.

(i) At the option of the Certificateholders, Certificates may be exchanged for other Certificates of authorized denominations of a like Class and aggregate Fractional Undivided Interest, upon surrender of the Certificates to be exchanged at the Corporate Trust Office of the Securities Administrator; provided, however, that no Certificate may be exchanged for new Certificates unless the original Fractional Undivided Interest represented by each such new Certificate (i) is at least equal to the minimum authorized denomination or (ii) is acceptable to the Depositor as indicated to the Securities Administrator in writing. Whenever any Certificates are so surrendered for exchange, the Securities Administrator shall sign and countersign and the

Securities Administrator shall deliver the Certificates which the Certificateholder making the exchange is entitled to receive.

(j) If the Securities Administrator so requires, every Certificate presented or surrendered for transfer or exchange shall be duly endorsed by, or be accompanied by a written instrument of transfer, with a signature guarantee, in form satisfactory to the Securities Administrator, duly executed by the holder thereof or his or her attorney duly authorized in writing.

(k) No service charge shall be made for any transfer or exchange of Certificates, but the Securities Administrator may require payment of a sum sufficient to cover any tax or governmental charge that may be imposed in connection with any transfer or exchange of Certificates.

(l) The Securities Administrator shall cancel all Certificates surrendered for transfer or exchange but shall retain such Certificates in accordance with its standard retention policy or for such further time as is required by the record retention requirements of the Securities Exchange Act of 1934, as amended, and thereafter may destroy such Certificates.

Section 5.03 Mutilated, Destroyed, Lost or Stolen Certificates. (a) If (i) any mutilated Certificate is surrendered to the Securities Administrator, or the Securities Administrator receives evidence to its satisfaction of the destruction, loss or theft of any Certificate, and (ii) there is delivered to the Securities Administrator such security or indemnity as it may require to save it harmless, and (iii) the Securities Administrator has not received notice that such Certificate has been acquired by a third Person, the Securities Administrator shall sign, countersign and deliver, in exchange for or in lieu of any such mutilated, destroyed, lost or stolen Certificate, a new Certificate of like tenor and Fractional Undivided Interest but in each case bearing a different number. The mutilated, destroyed, lost or stolen Certificate shall thereupon be canceled of record by the Securities Administrator and shall be of no further effect and evidence no rights.

(b) Upon the issuance of any new Certificate under this Section 5.03, the Securities Administrator may require the payment of a sum sufficient to cover any tax or other governmental charge that may be imposed in relation thereto and any other expenses (including the fees and expenses of the Securities Administrator) connected therewith. Any duplicate Certificate issued pursuant to this Section 5.03 shall constitute complete and indefeasible evidence of ownership in the Trust Fund, as if originally issued, whether or not the lost, stolen or destroyed Certificate shall be found at any time.

Section 5.04 Persons Deemed Owners. Prior to due presentation of a Certificate for registration of transfer, the Depositor, the Securities Administrator and any agent of the Depositor or the Securities Administrator may treat the Person in whose name any Certificate is registered as the owner of such Certificate for the purpose of receiving distributions pursuant to Section 6.01 and for all other purposes whatsoever. Neither the Depositor, the Securities Administrator nor any agent of the Depositor or the Securities Administrator shall be affected by notice to the contrary. No Certificate shall be deemed duly presented for a transfer effective on any Record Date unless the Certificate to be transferred is presented no later than the close of business on the third Business Day preceding such Record Date.

Section 5.05 Transfer Restrictions on Residual Certificates. (a) Residual Certificates, or interests therein, may not be transferred without the prior express written consent of the Tax Matters Person and the Seller, which cannot be unreasonably withheld. As a prerequisite to such consent, the proposed transferee must provide the Tax Matters Person, the Seller and the Securities Administrator with an affidavit that the proposed transferee is a Permitted Transferee (and, unless the Tax Matters Person and the Seller consent to the transfer to a person who is not a U.S. Person, an affidavit that it is a U.S. Person) as provided in Section 5.05(b).

(b) No transfer, sale or other disposition of a Residual Certificate (including a beneficial interest therein) may be made unless, prior to the transfer, sale or other disposition of a Residual Certificate, the proposed transferee (including the initial purchasers thereof) delivers to the Tax Matters Person, the Securities Administrator and the Depositor an affidavit in the form attached hereto as Exhibit E stating, among other things, that as of the date of such transfer (i) such transferee is a Permitted Transferee and that (ii) such transferee is not acquiring such

Residual Certificate for the account of any person who is not a Permitted Transferee. The Tax Matters Person shall not consent to a transfer of a Residual Certificate if it has actual knowledge that any statement made in the affidavit issued pursuant to the preceding sentence is not true. Notwithstanding any transfer, sale or other disposition of a Residual Certificate to any Person who is not a Permitted Transferee, such transfer, sale or other disposition shall be deemed to be of no legal force or effect whatsoever and such Person shall not be deemed to be a Holder of a Residual Certificate for any purpose hereunder, including, but not limited to, the receipt of distributions thereon. If any purported transfer shall be in violation of the provisions of this Section 5.05(b), then the prior Holder thereof shall, upon discovery that the transfer of such Residual Certificate was not in fact permitted by this Section 5.05(b), be restored to all rights as a Holder thereof retroactive to the date of the purported transfer. None of the Securities Administrator, the Tax Matters Person or the Depositor shall be under any liability to any Person for any registration or transfer of a Residual Certificate that is not permitted by this Section 5.05(b) or for making payments due on such Residual Certificate to the purported Holder thereof or taking any other action with respect to such purported Holder under the provisions of this Agreement so long as the written affidavit referred to above was received with respect to such transfer, and the Tax Matters Person, the Securities Administrator and the Depositor, as applicable, had no knowledge that it was untrue. The prior Holder shall be entitled to recover from any purported Holder of a Residual Certificate that was in fact not a permitted transferee under this Section 5.05(b) at the time it became a Holder all payments made on such Residual Certificate. Each Holder of a Residual Certificate, by acceptance thereof, shall be deemed for all purposes to have consented to the provisions of this Section 5.05(b) and to any amendment of this Agreement deemed necessary (whether as a result of new legislation or otherwise) by counsel of the Tax Matters Person or the Depositor to ensure that the Residual Certificates are not transferred to any Person who is not a Permitted Transferee and that any transfer of such Residual Certificates will not cause the imposition of a tax upon the Trust or cause any REMIC to fail to qualify as a REMIC.

(c) Unless the Tax Matters Person shall have consented in writing (which consent may be withheld in the Tax Matters Person’s sole discretion), the Residual Certificates (including a beneficial interest therein) may not be purchased by or transferred to any person who is not a United States Person.

(d) By accepting a Residual Certificate, the purchaser thereof agrees to be a Tax Matters Person if it is the Holder of the largest percentage interest of such Certificate, and appoints the Securities Administrator to act as its agent with respect to all matters concerning the tax obligations of the Trust.

Section 5.06 Restrictions on Transferability of Certificates. (a) No offer, sale, transfer or other disposition (including pledge) of any Certificate shall be made by any Holder thereof unless registered under the Securities Act, or an exemption from the registration requirements of the Securities Act and any applicable state securities or “Blue Sky” laws is available and the prospective transferee (other than the Depositor) of such Certificate signs and delivers to the Securities Administrator an Investment Letter, if the transferee is an Institutional Accredited Investor, in the form set forth as Exhibit F-l hereto, or a Rule 144A Certificate, if the transferee is a QIB, in the form set forth as Exhibit F-2 hereto. Notwithstanding the provisions of the immediately preceding sentence, no restrictions shall apply with respect to the transfer or

registration of transfer of a beneficial interest in any Certificate that is a Global Certificate of a Class to a transferee that takes delivery in the form of a beneficial interest in the Global Certificate of such Class provided that each such transferee shall be deemed to have made such representations and warranties contained in the Rule 144A Certificate as are sufficient to establish that it is a QIB. In the case of a proposed transfer of any Certificate to a transferee other than a QIB, the Securities Administrator may require an Opinion of Counsel addressed to the Securities Administrator that such transaction is exempt from the registration requirements of the Securities Act. The cost of such opinion shall not be an expense of the Securities Administrator or the Trust Fund.

(b) The Private Certificates shall each bear a Securities Legend.

Section 5.07 ERISA Restrictions. (a) Subject to the provisions of subsection (b), no Residual Certificates or Private Certificates may be acquired directly or indirectly by, or on behalf of, an employee benefit plan or other retirement arrangement that is subject to Title I of ERISA or Section 4975 of the Code (a “Plan”), or by a person using “plan assets” of a Plan, unless the proposed transferee provides the Securities Administrator, with an Opinion of Counsel addressed to the Master Servicer and the Securities Administrator (upon which they may rely) that is satisfactory to the Securities Administrator, which opinion will not be at the expense of the Master Servicer, the Securities Administrator or the Trustee, that the purchase of such Certificates by or on behalf of such Plan is permissible under applicable law, will not constitute or result in a nonexempt prohibited transaction under ERISA or Section 4975 of the Code and will not subject the Depositor, the Master Servicer, the Securities Administrator or the Trustee to any obligation in addition to those undertaken in the Agreement.

(b) Unless such Person has provided an Opinion of Counsel in accordance with Section 5.07(a), any Person acquiring an interest in a Global Certificate which is a Private Certificate, by acquisition of such Certificate, shall be deemed to have represented to the Securities Administrator, and any Person acquiring an interest in a Private Certificate in definitive form shall represent in writing to the Securities Administrator, that it is not acquiring an interest in such Certificate directly or indirectly by, or on behalf of, or with “plan assets” of a Plan.

(c) Each beneficial owner of a Class I-B-1, Class I-B-2 or Class I-B-3 Certificate or any interest therein shall be deemed to have represented, by virtue of its acquisition or holding of that certificate or any interest therein shall be deemed to have represented, by virtue of its acquisition or holding of that certificate or interest therein, that either (i) such Certificate is rated at least “BBB-” or its equivalent by Fitch, S&P or Xxxxx’x, (ii) such beneficial owner is not a Plan or investing with “plan assets” of any Plan, or (iii) (1) it is an insurance company, (2) the source of funds used to acquire or hold the certificate or interest therein is an “insurance company general account,” as such term is defined in Prohibited Transaction Class Exemption (“PTCE”) 95-60, and (3) the conditions in Sections I and III of PTCE 95-60 have been satisfied.

(d) Neither the Master Servicer nor the Securities Administrator will be required to monitor, determine or inquire as to compliance with the transfer restrictions with respect to the Global Certificates. Any attempted or purported transfer of any Certificate in violation of the provisions of Section s (a), (b) or (c) above shall be void ab initio and such Certificate shall be

considered to have been held continuously by the prior permitted Certificateholder. Any transferor of any Certificate in violation of such provisions, shall indemnify and hold harmless the Securities Administrator, the Master Servicer and the Trustee from and against any and all liabilities, claims, costs or expenses incurred by the Securities Administrator, the Master Servicer and the Trustee as a result of such attempted or purported transfer. The Securities Administrator shall have no liability for transfer of any such Global Certificates in or through book-entry facilities of any Depository or between or among Depository Participants or Certificate Owners made in violation of the transfer restrictions set forth herein.

Section 5.08 Rule 144A Information. For so long as any Private Certificates are outstanding, (1) the Seller will provide or cause to be provided to any holder of such Private Certificates and any prospective purchaser thereof designated by such a holder, upon the request of such holder or prospective purchaser, the information required to be provided to such holder or prospective purchaser by Rule 144A(d)(4) under the Securities Act; and (2) the Seller shall update such information from time to time in order to prevent such information from becoming false and misleading and will take such other actions as are necessary to ensure that the safe harbor exemption from the registration requirements of the Securities Act under Rule 144A is and will be available for resales of such Private Certificates conducted in accordance with Rule 144A.

ARTICLE VI

PAYMENTS TO CERTIFICATEHOLDERS

Section 6.01 Distributions on the Certificates. (a) Interest and principal (as applicable) on the Certificates (other than the Class R Certificates and the Class XP Certificates) will be distributed monthly on each Distribution Date, commencing in December 2005, in an amount equal to the Available Funds on deposit in the Distribution Account for such Distribution Date. In addition, on the Distribution Date occurring in December 2005, the Class R Deposit will be distributed to the Holder of the Class R Certificates in reduction of the Current Principal Amount thereof. On each Distribution Date, the Available Funds on deposit in the Distribution Account shall be distributed as follows:

(A) on each Distribution Date, the Available Funds will be distributed to the Senior Certificates as follows:

first, to the Class I-A Certificates and Class I-X-1 Certificates, the Accrued Certificate Interest on each such Class for such Distribution Date, and with respect to the Class I-A Certificates and the first three Distribution Dates, including amounts withdrawn from the Class A/B Reserve Fund, pro rata, based on the Accrued Certificate Interest owed to each such Class;

second, to the Class I-A Certificates, any Carryover Shortfall Amounts due to such Class I-A Certificates (in accordance with clause (D) below) to the extent such amount was deducted from

the Accrued Certificate Interest on the Class I-X-1 Certificates for such Distribution Date;

third, to the Class I-A Certificates and the Class I-X-1 Certificates, any Accrued Certificate Interest thereon remaining undistributed from previous Distribution Dates, pro rata, based on the undistributed Accrued Certificate Interest owed to each Class, to the extent of remaining Available Funds; and

fourth, to the extent of remaining Available Funds, the Senior Optimal Principal Amount for such Distribution Date, sequentially to: (i) the Class I-A Certificates, on a pro rata basis, based on the Current Principal Amount of each such Class, in reduction of their Current Principal Amounts, until each such Class has been reduced to zero, and then to (ii) the Class I-X-1 Certificates, in reduction of its Current Principal Amount, until such amount has been reduced to zero.

(B) On each Distribution Date on or prior to a Cross-Over Date, an amount equal to the sum of any remaining Available Funds after the distributions in clause (A) above, as applicable, and, with respect to the Class I-B Certificates, including amounts withdrawn from the Class A/B Reserve Fund, will be distributed sequentially, in the following order: to the Class I-M-X, Class I-B-1, Class I-B-2, Class I-B-3, Class I-B-4, Class I-B-5 and Class I-B-6 Certificates, in each case up to an amount equal to and in the following order: (a) the Accrued Certificate Interest thereon for such Distribution Date, (b) except in the case of the Class I-M-X Certificates, the Carryover Shortfall Amount due such Class or Classes of Certificates (in accordance with clause (D) below) to the extent such amount was deducted from the Accrued Certificate Interest on the Class I-M-X Certificates for such Distribution Date (or the Class I-X-1 Certificates with respect to the initial Distribution Date only), (c) any Accrued Certificate Interest thereon remaining undistributed from previous Distribution Dates and (d) first to the Class I-M-X Certificates, until such Class has been paid to zero, and then to the remaining Subordinate Certificates, sequentially, as described herein, such Class’s Allocable Share for such Distribution Date, in each case, to the extent of remaining Available Funds.

(C) If, after distributions have been made pursuant to priorities first, second and third of paragraph (A) above, the remaining Available Funds is less than the Senior Optimal Principal Amount, the Senior Optimal Principal Amount shall be reduced by that amount, and the remaining Available Funds will be distributed as principal among the Classes of Senior Certificates on a pro rata basis in accordance with their respective Current Principal Amounts.

(D) Carryover Shortfall Amounts will be paid (including from amounts in the Class A/B Reserve Fund as described herein) to Holders of the Class I-A Certificates, pro rata, based on unpaid Carryover Shortfall Amounts and with respect to the initial Distribution Date, and then, with respect to the initial Distribution Date only, to the Class I-B-1 Certificates and the Class I-B-2 Certificates, in each case, to the extent of the amounts deducted from the Accrued Certificate Interest on the Class I-X-1 Certificates. Carryover Shortfall Amounts will be paid (including from amounts in the Class A/B Reserve Fund as described herein) to Holders of the Class I-B Certificates, sequentially, in the order of priority described above in paragraph (B), to the extent of the amounts deducted from the Accrued Certificate Interest on the Class I-M-X Certificates.

(E) On each Distribution Date, any Available Funds remaining after payment of interest and principal to the Classes of Certificates entitled thereto, will be distributed to the Class R Certificates; provided that if on any Distribution Date there are any Available Funds remaining after payment of interest and principal to a Class or Classes of Certificates entitled thereto, such amounts will be distributed to the other Classes of Senior Certificates, pro rata, based upon their Current Principal Amounts, until all amounts due to all Classes of Senior Certificates have been paid in full, before any Available Funds are distributed in accordance with this clause to the Class R Certificates.

(b) No Accrued Certificate Interest will be payable with respect to any Class of Certificates after the Distribution Date on which the Current Principal Amount of such Certificate has been reduced to zero.

(c) If on any Distribution Date the Available Funds for the Senior Certificates is less than the Accrued Certificate Interest on the Senior Certificates for such Distribution Date prior to reduction for Net Interest Shortfalls and the interest portion of Realized Losses, the shortfall will be allocated to the holders of the Senior Certificates on a pro rata basis in accordance with the amount of Accrued Certificate Interest for that Distribution Date absent such shortfalls. In addition, the amount of any interest shortfalls will constitute unpaid Accrued Certificate Interest and will be distributable to holders of the Certificates of the related Classes entitled to such amounts on subsequent Distribution Dates, to the extent of the applicable Available Funds after current interest distributions as required herein. Any such amounts so carried forward will not bear interest. Shortfalls in interest payments will not be offset by a reduction in the servicing compensation of the Master Servicer or otherwise, except to the extent of applicable Compensating Interest Payments.

(d) The expenses and fees of the Trust shall be paid by each of the 2005-AR1 REMICs, to the extent that such expenses relate to the assets of each of such respective 2005-AR1 REMICs, and all other expenses and fees of the Trust shall be paid pro rata by each of the 2005-AR1 REMICs.

(e) On any Distribution Date, the Senior Percentage of the Net Deferred Interest will be allocated, on a pro rata basis, in accordance with the amount of interest accrued on such Class at its Pass-Through Rate for the Interest Accrual Period for such Distribution Date. The remainder of the Net Deferred Interest will be allocated to the Class I-B Certificate, on a pro rata basis, in accordance with the amount of interest that accrued on such Class at its Pass-Through Rate for the Interest Accrual Period related to that Distribution Date.

(f) On each Distribution Date, the Class I-A Corridor Contract Payment Amount with respect to such Distribution Date shall be distributed in the following order of priority, in each case to the extent of amounts available:

(A) to pay any Accrued Certificate Interest for the Class I-A Certificates for such Distribution Date, to the extent not covered by Available Funds for such Distribution Date;

(B) from any remaining amounts, to pay any Carryover Shortfall Amount for the Class I-A Certificates, to the extent not covered by amounts otherwise payable to the Class I-X-1 Certificates on such Distribution Date; and

(g) On each Distribution Date, the Class I-B Corridor Contract Payment Amount with respect to such Distribution Date shall be distributed in the following order of priority, in each case to the extent of amounts available:

(A) to pay any Accrued Certificate Interest for the Class I-B-1 Certificates and the Class I-B-2 Certificates for such Distribution Date, to the extent not covered by Available Funds for such Distribution Date;

(B) from any remaining amounts, to pay any Carryover Shortfall Amount for the Class I-B-1 Certificates and the Class I-B-2 Certificates, to the extent not covered by amounts otherwise payable to the Class I-M-X Certificates on such Distribution Date or the Class I-X-1 Certificates on the initial Distribution Date; and

(h) On each Distribution Date, all amounts transferred from the Class XP Reserve Account representing Prepayment Charges in respect of the Prepayment Charge Loans received during the related Prepayment Period will be withdrawn from the Distribution Account and distributed by the Securities Administrator to the Holders of the Class XP Certificates and shall not be available for distribution to the Holders of any other Class of Certificates.

Section 6.02 Allocation of Losses and Subsequent Recoveries. (a) On or prior to each Determination Date, the Master Servicer shall determine the amount of any Realized Loss in

respect of each Mortgage Loan that occurred during the immediately preceding calendar month, based on information provided by the Servicer.

(b) With respect to any Certificates any Distribution Date, the principal portion of each Realized Loss on a Mortgage Loan shall be allocated as follows:

first, to the Class I-B-6 Certificates until the Current Principal Amount thereof has been reduced to zero;

second, to the Class I-B-5 Certificates until the Current Principal Amount thereof has been reduced to zero;

third, to the Class I-B-4 Certificates until the Current Principal Amount thereof has been reduced to zero;

fourth, to the Class I-B-3 Certificates until the Current Principal Amount thereof has been reduced to zero;

fifth, to the Class I-B-2 Certificates until the Current Principal Amount thereof has been reduced to zero;

sixth, to the Class I-B-1 Certificates until the Current Principal Amount thereof has been reduced to zero;

seventh, to the Class I-M-X Certificates until the Current Principal Amount thereof has been reduced to zero; and

eighth, to the Senior Certificates as described in Section 6.02(d) hereof.

(c) Notwithstanding the foregoing clause (b), no such allocation of any Realized Loss shall be made on a Distribution Date to any Class of Certificates to the extent that such allocation would result in the reduction of the aggregate Current Principal Amounts of all Certificates as of such Distribution Date, after giving effect to all distributions and prior allocations of Realized Losses on the Mortgage Loans on such date, to an amount less than the aggregate Scheduled Principal Balance of all of the Mortgage Loans as of the first day of the month of such Distribution Date (such limitation, the “Loss Allocation Limitation”).

(d) The principal portion of any Realized Losses allocated to a Class of Certificates shall be allocated among the Certificates of such Class in proportion to their respective Current Principal Amounts. The principal portion of any allocation of Realized Losses on the Mortgage Loans allocated to the Senior Certificates will be allocated on any Distribution Date concurrently and pro rata, to (i) the Class I-X-1 Certificates until the Current Principal Amount thereof has been reduced to zero and (ii) the Class I-A-3, Class I-A-2 and Class I-A-1 Certificates, sequentially in that order, until the Current Principal Amounts of each such Class has been reduced to zero.

(e) Realized Losses shall be allocated on the Distribution Date in the month following the month in which such loss was incurred and, in the case of the principal portion thereof, after giving effect to distributions made on such Distribution Date.

(f) On each Distribution Date, the Securities Administrator shall determine the Subordinate Certificate Writedown Amount. Any Subordinate Certificate Writedown Amount shall effect a corresponding reduction in the Current Principal Amount of the Subordinate Certificates in the reverse order of their numerical Class designations.

(g) The applicable Senior Percentage of Net Interest Shortfalls will be allocated among the Senior Certificates in proportion to the amount of Accrued Certificate Interest that would have been allocated thereto in the absence of such shortfalls. The applicable Subordinate Percentage of Net Interest Shortfall will be allocated among the Subordinate Certificates sequentially to the Class I-B Certificates, beginning with the Class I-B Certificates with the highest numerical designation, and then to the Class I-M-X Certificates, in proportion to the amount of Accrued Certificate Interest that would have been allocated thereto in the absence of such shortfalls. The interest portion of any Realized Losses with respect to the Mortgage Loans occurring on or prior to the Cross-Over Date will be allocated to the Subordinate Certificates in inverse order of their numerical Class designations. Following the Cross-Over Date, the interest portion of Realized Losses on the Mortgage Loans will be allocated to the Senior Certificates on a pro rata basis in proportion to the amount of Accrued Certificate Interest that would have been allocated thereto in the absence of such Realized Losses.

(h) In addition, in the event that the Master Servicer receives any Subsequent Recoveries from the Servicer, the Master Servicer shall deposit such funds into the Distribution Account pursuant to Section 4.01(c)(ii). If, after taking into account such Subsequent Recoveries, the amount of a Realized Loss is reduced, the amount of such Subsequent Recoveries will be applied to increase the Current Principal Amount of the Class of Subordinate Certificates with the highest payment priority to which Realized Losses have been allocated, but not by more than the amount of Realized Losses previously allocated to that Class of Subordinate Certificates pursuant to this Section 6.02. The amount of any remaining Subsequent Recoveries will be applied to sequentially increase the Current Principal Amount of the Subordinate Certificates, beginning with the Class of Subordinate Certificates with the next highest payment priority, up to the amount of such Realized Losses previously allocated to such Class or Classes of Certificates pursuant to this Section 6.02. Holders of such Certificates will not be entitled to any payments in respect of current interest on the amount of such increases for any Interest Accrual Period preceding the Distribution Date on which such increase occurs. Any such increases shall be applied to the Current Principal Amount of each Subordinate Certificate of such Class in accordance with its respective Fractional Undivided Interest.

Section 6.03 Payments. (a) On each Distribution Date, other than the final Distribution Date, the Securities Administrator shall distribute to each Certificateholder of record as of the immediately preceding Record Date the Certificateholder’s pro rata share of its Class (based on the aggregate Fractional Undivided Interest represented by such Holder’s Certificates) of all amounts required to be distributed on such Distribution Date to such Class. The Securities Administrator shall calculate the amount to be distributed to each Class and, based on such amounts, the Securities Administrator shall determine the amount to be distributed to each

Certificateholder. The Securities Administrator’s calculations of payments shall be based solely on information provided to the Securities Administrator by the Master Servicer. The Securities Administrator shall not be required to confirm, verify or recompute any such information but shall be entitled to rely conclusively on such information.

(b) Payment of the above amounts to each Certificateholder shall be made (i) by check mailed to each Certificateholder entitled thereto at the address appearing in the Certificate Register or (ii) upon receipt by the Securities Administrator on or before the fifth Business Day preceding the Record Date of written instructions from a Certificateholder by wire transfer to a United States dollar account maintained by the payee at any United States depository institution with appropriate facilities for receiving such a wire transfer; provided, however, that the final payment in respect of each Class of Certificates will be made only upon presentation and surrender of such respective Certificates at the office or agency of the Securities Administrator specified in the notice to Certificateholders of such final payment.

Section 6.04 Statements to Certificateholders. (a) On each Distribution Date, concurrently with each distribution to Certificateholders, the Securities Administrator shall make available to the parties hereto and each Certificateholder via the Securities Administrator’s internet website as set forth below, the following information, expressed with respect to clauses (i) through (vii) in the aggregate and as a Fractional Undivided Interest representing an initial Current Principal Amount of $1,000, or in the case of the Residual Certificates, an initial Current Principal Amount of $100:

(i) the Current Principal Amount and/or Notional Amount of each Class of Certificates immediately prior to such Distribution Date;

(ii) the amount of the distribution allocable to principal on each applicable Class of Certificates;

(iii) the aggregate amount of interest accrued at the related Pass-Through Rate with respect to each Class during the related Interest Accrual Period;

(iv) the Net Interest Shortfall and any other adjustments to interest at the related Pass-Through Rate necessary to account for any difference between interest accrued and aggregate interest distributed with respect to each Class of Certificates;

(v) the amount of the distribution allocable to interest on each Class of Certificates for such Distribution Date;

(vi) the Pass-Through Rates for each Class of Certificates with respect to such Distribution Date;

(vii) the Current Principal Amount and/or Notional Amount of each Class of Certificates after such Distribution Date;

(viii) the amount of any Monthly Advances, Compensating Interest Payments and outstanding unreimbursed advances by the Master Servicer or the Servicer included in such distribution;

(ix) the aggregate amount of any Realized Losses (listed separately for each category of Realized Loss) during the related Prepayment Period and cumulatively since the Cut-off Date and the amount and source (separately identified) of any distribution in respect thereof included in such distribution;

(x) with respect to each Mortgage Loan which incurred a Realized Loss during the related Prepayment Period, (i) the loan number, (ii) the Scheduled Principal Balance of such Mortgage Loan as of the Cut-off Date, (ii) the Scheduled Principal Balance of such Mortgage Loan as of the beginning of the related Due Period, (iii) the Net Liquidation Proceeds with respect to such Mortgage Loan and (iv) the amount of the Realized Loss with respect to such Mortgage Loan;

(xi) the amount of Scheduled Principal and Principal Prepayments, (including but separately identifying the principal amount of Principal Prepayments, Insurance Proceeds, the purchase price in connection with the purchase of Mortgage Loans, cash deposits in connection with substitutions of Mortgage Loans and Net Liquidation Proceeds) and the number and principal balance of Mortgage Loans purchased or substituted for during the relevant period and cumulatively since the Cut-off Date;

(xii) the number of Mortgage Loans (excluding REO Property) remaining in the Trust Fund as of the end of the related Prepayment Period;

(xiii) information regarding any Mortgage Loan delinquencies as of the end of the related Prepayment Period, including the aggregate number and aggregate Outstanding Principal Balance of Mortgage Loans (a) delinquent 30 to 59 days on a contractual basis, (b) delinquent 60 to 89 days on a contractual basis, and (c) delinquent 90 or more days on a contractual basis, in each case as of the close of business on the last Business Day of the immediately preceding month;

(xiv) the number of Mortgage Loans in the foreclosure process as of the end of the related Due Period and the aggregate Outstanding Principal Balance of such Mortgage Loans;

(xv) the number and aggregate Outstanding Principal Balance of all Mortgage Loans as to which the Mortgaged Property was REO Property as of the end of the related Due Period;

(xvi) the book value (the sum of (A) the Outstanding Principal Balance of such Mortgage Loan, (B) accrued interest through the date of foreclosure and (C) foreclosure expenses) of any REO Property; provided that, in the event that such information is not available to the Securities Administrator on the Distribution Date, such information shall be furnished promptly after it becomes available;

(xvii) the amount of Net Deferred Interest and Realized Losses allocated to each Class of Certificates since the prior Distribution Date and in the aggregate for all prior Distribution Dates;

(xviii) the amount withdrawn from the Class A/B Reserve Fund (with respect to the first three distribution dates only), on that Distribution Date;

(xix) the Average Loss Severity Percentage; and

(xx) the Senior Percentage, Senior Prepayment Percentage, Subordinate Percentage and Subordinate Prepayment Percentage, in each case, for such Distribution Date.

The information set forth above shall be calculated or reported, as the case may be, by the Securities Administrator, based solely on, and to the extent of, information provided to the Securities Administrator by the Master Servicer. The Securities Administrator may conclusively rely on such information and shall not be required to confirm, verify or recalculate any such information.

The Securities Administrator may make available each month, to any interested party, the monthly statement to Certificateholders via the Securities Administrator’s website initially located at “xxx.xxxxxxx.xxx.” Assistance in using the website can be obtained by calling the Securities Administrator’s customer service desk at (000) 000-0000. Parties that are unable to use the above distribution option are entitled to have a paper copy mailed to them via first class mail by calling the Securities Administrator’s customer service desk and indicating such. The Securities Administrator shall have the right to change the way such reports are distributed in order to make such distribution more convenient and/or more accessible to the parties, and the Securities Administrator shall provide timely and adequate notification to all parties regarding any such change.

(b) Within a reasonable period of time after the end of the preceding calendar year beginning in 2006, the Securities Administrator will, upon request, furnish a report to each Holder of the Certificates of record at any time during the prior calendar year as to the aggregate of amounts reported pursuant to subclauses (a)(ii) and (a)(v) above with respect to the Certificates, plus information with respect to the amount of servicing compensation and such other customary information as the Securities Administrator may determine to be necessary and/or to be required by the Internal Revenue Service or by a federal or state law or rules or regulations to enable such Holders to prepare their tax returns for such calendar year. Such obligations shall be deemed to have been satisfied to the extent that substantially comparable information shall be provided by the Securities Administrator pursuant to the requirements of the Code.

Section 6.05 Monthly Advances. If the interest portion of the Scheduled Payment on a Mortgage Loan that was due on a related Due Date is delinquent other than as a result of application of the Relief Act and for which the Servicer was required to make an advance

pursuant to the Servicing Agreement exceeds the amount deposited in the Distribution Account which will be used for an advance with respect to such Mortgage Loan, the Master Servicer will deposit in the Distribution Account not later than the Distribution Account Deposit Date immediately preceding the related Distribution Date an amount equal to such deficiency, net of the Servicing Fee for such Mortgage Loan, except to the extent the Master Servicer determines any such advance to be a Nonrecoverable Advance. Subject to the foregoing, the Master Servicer shall continue to make such advances through the date that the Servicer is required to do so under the Servicing Agreement. If the Master Servicer deems an advance to be a Nonrecoverable Advance, on the Distribution Account Deposit Date, the Master Servicer shall present an Officer’s Certificate to the Securities Administrator (except in the case where the Master Servicer and the Securities Administrator are the same entity, and in such case no such Officer's Certificate is required) (i) stating that the Master Servicer elects not to make a Monthly Advance in a stated amount and (ii) detailing the reason it deems the advance to be a Nonrecoverable Advance.

Section 6.06 Compensating Interest Payments. The Master Servicer shall deposit in the Distribution Account not later than each Distribution Account Deposit Date an amount equal to the lesser of (i) the sum of the aggregate amounts required to be paid by the Servicer under the Servicing Agreement with respect to subclauses (a) and (b) of the definition of Interest Shortfall with respect to the Mortgage Loans for the related Distribution Date, and not so paid by the Servicer and (ii) the Master Servicer Compensation for such Distribution Date (such amount, the “Compensating Interest Payment”). The Master Servicer shall not be entitled to any reimbursement of any Compensating Interest Payment.

Section 6.07 Distributions on REMIC I Regular Interests and REMIC II Regular Interests

(a) On each Distribution Date, the Securities Administrator shall be deemed to distribute to the Trustee as the holder of the REMIC I Regular Interests, the following to the extent of the Available Funds reduced by distributions made to the Class R Certificateholders pursuant to Section 6.01(a): those portions of the REMIC I Distribution Amount not designated to Component I of the Class R Certificate, in the amounts and in accordance with the priorities set forth in the definition of REMIC I Distribution Amount.

(b) On each Distribution Date the Securities Administrator shall be deemed to distribute from REMIC II, in the priority set forth in Sections 6.01(a), to the Holders of each Class of Certificates (other than the Class R Certificates) the amounts distributable thereon with respect to their interests in REMIC II.

(c) Notwithstanding the deemed distributions on the REMIC I Regular Interests and REMIC II Regular Interests described in this Section 6.07, distributions of funds from the Certificate Account shall be made only in accordance with Section 6.01.

ARTICLE VII

THE MASTER SERVICER

Section 7.01 Liabilities of the Master Servicer. The Master Servicer shall be liable in accordance herewith only to the extent of the obligations specifically imposed upon and undertaken by it herein.

Section 7.02 Merger or Consolidation of the Master Servicer.

(a) The Master Servicer will keep in full force and effect its existence, rights and franchises as a corporation under the laws of the state of its incorporation, and will obtain and preserve its qualification to do business as a foreign corporation in each jurisdiction in which such qualification is or shall be necessary to protect the validity and enforceability of this Agreement, the Certificates or any of the Mortgage Loans and to perform its duties under this Agreement.

(b) Any Person into which the Master Servicer may be merged or consolidated, or any corporation resulting from any merger or consolidation to which the Master Servicer shall be a party, or any Person succeeding to the business of the Master Servicer, shall be the successor of the Master Servicer hereunder, without the execution or filing of any paper or further act on the part of any of the parties hereto, anything herein to the contrary notwithstanding.

Section 7.03 Indemnification of the Trustee and the Master Servicer. (a) The Master Servicer agrees to indemnify the Indemnified Persons for, and to hold them harmless against, any loss, liability or expense (including reasonable legal fees and disbursements of counsel) incurred on their part that may be sustained in connection with, arising out of, or relating to, any claim or legal action (including any pending or threatened claim or legal action) relating to this Agreement, the Servicing Agreement or the Certificates or the powers of attorney delivered by the Trustee hereunder (i) related to the Master Servicer’s failure to perform its duties in compliance with this Agreement (except as any such loss, liability or expense shall be otherwise reimbursable pursuant to this Agreement) or (ii) incurred by reason of the Master Servicer’s willful misfeasance, bad faith or gross negligence in the performance of duties hereunder or by reason of reckless disregard of obligations and duties hereunder, provided, in each case, that with respect to any such claim or legal action (or pending or threatened claim or legal action), the Trustee shall have given the Master Servicer and the Depositor written notice thereof promptly after the Trustee shall have with respect to such claim or legal action knowledge thereof. The Trustee’s failure to give any such notice shall not affect the Trustee’s right to indemnification hereunder, except to the extent the Master Servicer is materially prejudiced by such failure to give notice. This indemnity shall survive the resignation or removal of the Trustee, Master Servicer or the Securities Administrator and the termination of this Agreement.

(a) The Depositor will indemnify any Indemnified Person for any loss, liability or expense of any Indemnified Person not otherwise covered by the Master Servicer’s indemnification pursuant to Section 7.03(a).

Section 7.04 Limitations on Liability of the Master Servicer and Others. Subject to the obligation of the Master Servicer to indemnify the Indemnified Persons pursuant to Section 7.03:

(a) Neither the Master Servicer nor any of the directors, officers, employees or agents of the Master Servicer shall be under any liability to the Indemnified Persons, the Depositor, the Trust Fund or the Certificateholders for taking any action or for refraining from taking any action in good faith pursuant to this Agreement, or for errors in judgment; provided, however, that this provision shall not protect the Master Servicer or any such Person against any breach of warranties or representations made herein or any liability which would otherwise be imposed by reason of such Person’s willful misfeasance, bad faith or gross negligence in the performance of duties or by reason of reckless disregard of obligations and duties hereunder.

(b) The Master Servicer and any director, officer, employee or agent of the Master Servicer may rely in good faith on any document of any kind prima facie properly executed and submitted by any Person respecting any matters arising hereunder.

(c) The Master Servicer, the Custodian and any director, officer, employee or agent of the Master Servicer or the Custodian shall be indemnified by the Trust and held harmless thereby against any loss, liability or expense (including reasonable legal fees and disbursements of counsel) incurred on their part that may be sustained in connection with, arising out of, or related to, any claim or legal action (including any pending or threatened claim or legal action) relating to this Agreement, the Certificates, the Custodial Agreement or the Servicing Agreement (except to the extent that the Master Servicer is indemnified by the Servicer thereunder), other than (i) any such loss, liability or expense related to the Master Servicer’s failure to perform its duties in compliance with this Agreement (except as any such loss, liability or expense shall be otherwise reimbursable pursuant to this Agreement), or to the Custodian’s failure to perform its duties under the Custodial Agreement, respectively, or (ii) any such loss, liability or expense incurred by reason of the Master Servicer’s or the Custodian’s willful misfeasance, bad faith or gross negligence in the performance of duties hereunder or under the Custodial Agreement, as applicable, or by reason of reckless disregard of obligations and duties hereunder or under the Custodial Agreement, as applicable.

(d) The Master Servicer shall not be under any obligation to appear in, prosecute or defend any legal action that is not incidental to its duties under this Agreement and that in its opinion may involve it in any expense or liability; provided, however, the Master Servicer may in its discretion undertake any such action which it may deem necessary or desirable with respect to this Agreement and the rights and duties of the parties hereto and the interests of the Certificateholders hereunder. In such event, the legal expenses and costs of such action and any liability resulting therefrom shall be expenses, costs and liabilities of the Trust Fund, and the Master Servicer shall be entitled to be reimbursed therefor out of the Distribution Account as provided by Section 4.04. Nothing in this Section 7.04(d) shall affect the Master Servicer’s obligation to supervise, or to take such actions as are necessary to ensure, the servicing and administration of the Mortgage Loans pursuant to Section 3.01(a).

(e) In taking or recommending any course of action pursuant to this Agreement, unless specifically required to do so pursuant to this Agreement, the Master Servicer shall not be required to investigate or make recommendations concerning potential liabilities which the Trust

might incur as a result of such course of action by reason of the condition of the Mortgaged Properties but shall give notice to the Trustee if it has notice of such potential liabilities.

(f) The Master Servicer shall not be liable for any acts or omissions of the Servicer, except as otherwise expressly provided herein.

Section 7.05 Master Servicer Not to Resign. Except as provided in Section 7.07, the Master Servicer shall not resign from the obligations and duties hereby imposed on it except upon a determination that any such duties hereunder are no longer permissible under applicable law and such impermissibility cannot be cured. Any such determination permitting the resignation of the Master Servicer shall be evidenced by an Opinion of Independent Counsel addressed to the Trustee to such effect delivered to the Trustee. No such resignation by the Master Servicer shall become effective until the Company or the Trustee as successor Master Servicer or another successor to the Master Servicer reasonably satisfactory to the Trustee shall have assumed the responsibilities and obligations of the Master Servicer in accordance with Section 8.02 hereof. The Trustee shall notify the Rating Agencies upon notice of the resignation of the Master Servicer.

Section 7.06 Successor Master Servicer. In connection with the appointment of any successor master servicer or the assumption of the duties of the Master Servicer, the Company or the Trustee may make such arrangements for the compensation of such successor master servicer out of payments on the Mortgage Loans as the Company or the Trustee and such successor master servicer shall agree. If the successor master servicer does not agree that such market value is a fair price, such successor master servicer shall obtain two quotations of market value from third parties actively engaged in the servicing of single-family mortgage loans. Notwithstanding the foregoing, the compensation payable to a successor master servicer may not exceed the compensation which the Master Servicer would have been entitled to retain if the Master Servicer had continued to act as Master Servicer hereunder.

Section 7.07 Sale and Assignment of Master Servicing. The Master Servicer may sell and assign its rights and delegate its duties and obligations in its entirety as Master Servicer under this Agreement and the Company may terminate the Master Servicer without cause and select a new Master Servicer; provided, however, that: (i) the purchaser or transferee accepting such assignment and delegation (a) shall be a Person which shall be qualified to service mortgage loans for Xxxxxx Xxx or Xxxxxxx Mac; (b) shall have a net worth of not less than $10,000,000 (unless otherwise approved by each Rating Agency pursuant to clause (ii) below); and (c) shall execute and deliver to the Trustee an agreement, in form and substance reasonably satisfactory to the Trustee, which contains an assumption by such Person of the due and punctual performance and observance of each covenant and condition to be performed or observed by it as master servicer under this Agreement, any custodial agreement from and after the effective date of such agreement; (ii) each Rating Agency shall be given prior written notice of the identity of the proposed successor to the Master Servicer and each Rating Agency’s rating of the Certificates in effect immediately prior to such assignment, sale and delegation will not be downgraded, qualified or withdrawn as a result of such assignment, sale and delegation, as evidenced by a letter to such effect delivered to the Master Servicer and the Trustee; (iii) the Master Servicer assigning and selling the master servicing shall deliver to the Trustee an Officer’s Certificate and an Opinion of Independent Counsel addressed to the Trustee, each

stating that all conditions precedent to such action under this Agreement have been completed and such action is permitted by and complies with the terms of this Agreement; and (iv) in the event the Master Servicer is terminated without cause by the Company, the Company shall pay the terminated Master Servicer a termination fee equal to 0.25% of the aggregate Scheduled Principal Balance of the Mortgage Loans at the time the master servicing of the Mortgage Loans is transferred to the successor Master Servicer. No such assignment or delegation shall affect any rights or liability of the Master Servicer arising prior to the effective date thereof.

ARTICLE VIII

DEFAULT

Section 8.01 Events of Default. “Event of Default,” wherever used herein, means any one of the following events (whatever the reason for such Event of Default and whether it shall be voluntary or involuntary or be effected by operation of law or pursuant to any judgment, decree or order of any court or any order, rule or regulation of any administrative or governmental body) and only with respect to the defaulting Master Servicer:

(i) The Master Servicer fails to cause to be deposited in the Distribution Account any amount so required to be deposited pursuant to this Agreement (other than a Monthly Advance), and such failure continues unremedied for a period of three Business Days after the date upon which written notice of such failure, requiring the same to be remedied, shall have been given to the Master Servicer; or

(ii) The Master Servicer fails to observe or perform in any material respect any other material covenants and agreements set forth in this Agreement to be performed by it, which covenants and agreements materially affect the rights of Certificateholders, and such failure continues unremedied for a period of 60 days after the date on which written notice of such failure, properly requiring the same to be remedied, shall have been given to the Master Servicer by the Trustee or to the Master Servicer and the Trustee by the Holders of Certificates evidencing Fractional Undivided Interests aggregating not less than 25% of the Trust Fund; or

(iii) There is entered against the Master Servicer a decree or order by a court or agency or supervisory authority having jurisdiction in the premises for the appointment of a conservator, receiver or liquidator in any insolvency, readjustment of debt, marshaling of assets and liabilities or similar proceedings, or for the winding up or liquidation of its affairs, and the continuance of any such decree or order is unstayed and in effect for a period of 60 consecutive days, or an involuntary case is commenced against the Master Servicer under any applicable insolvency or reorganization statute and the petition is not dismissed within 60 days after the commencement of the case; or

(iv) The Master Servicer consents to the appointment of a conservator or receiver or liquidator in any insolvency, readjustment of debt, marshaling of assets and liabilities or similar proceedings of or relating to the Master Servicer or substantially all of its property; or the Master Servicer admits in writing its inability to pay its debts generally as they become due, files a petition to take advantage of any applicable insolvency or reorganization statute, makes an assignment for the benefit of its creditors, or voluntarily suspends payment of its obligations;

(v) The Master Servicer assigns or delegates its duties or rights under this Agreement in contravention of the provisions permitting such assignment or delegation under Sections 7.05 or 7.07; or

(vi) The Master Servicer fails to cause to be deposited in the Distribution Account any Monthly Advance (other than a Nonrecoverable Advance) by 5:00 p.m. New York City time on the Distribution Account Deposit Date.

In each and every such case, so long as such Event of Default with respect to the Master Servicer shall not have been remedied, either the Trustee or the Holders of Certificates evidencing Fractional Undivided Interests aggregating not less than 51% of the principal of the Trust Fund, by notice in writing to the Master Servicer (and to the Trustee if given by such Certificateholders), with a copy to the Rating Agencies, and with the consent of the Company, may terminate all of the rights and obligations (but not the liabilities) of the Master Servicer under this Agreement and in and to the Mortgage Loans and/or the REO Property serviced by the Master Servicer and the proceeds thereof. Upon the receipt by the Master Servicer of the written notice, all authority and power of the Master Servicer under this Agreement, whether with respect to the Certificates, the Mortgage Loans, REO Property or under any other related agreements (but only to the extent that such other agreements relate to the Mortgage Loans or related REO Property) shall, subject to Section 8.02, automatically and without further action pass to and be vested in the Trustee as successor Master Servicer pursuant to this Section 8.01; and, without limitation, the Trustee is hereby authorized and empowered to execute and deliver, on behalf of the Master Servicer as attorney-in-fact or otherwise, any and all documents and other instruments and to do or accomplish all other acts or things necessary or appropriate to effect the purposes of such notice of termination, whether to complete the transfer and endorsement or assignment of the Mortgage Loans and related documents, or otherwise. The Master Servicer agrees to cooperate with the Trustee in effecting the termination of the Master Servicer’s rights and obligations hereunder, including, without limitation, the transfer to the Trustee of (i) the property and amounts which are then or should be part of the Trust or which thereafter become part of the Trust; and (ii) originals or copies of all documents of the Master Servicer reasonably requested by the Trustee to enable it to assume the Master Servicer’s duties thereunder. In addition to any other amounts which are then, or, notwithstanding the termination of its activities under this Agreement, may become payable to the Master Servicer under this Agreement, the Master Servicer shall be entitled to receive, out of any amount received on account of a Mortgage Loan or related REO Property, that portion of such payments which it would have received as reimbursement under this Agreement if notice of termination had not been given. The termination of the rights and obligations of the Master Servicer shall not affect any obligations incurred by the Master Servicer prior to such termination.

Notwithstanding the foregoing, if an Event of Default described in clause (vi) of this Section 8.01 shall occur (as notified in writing to the Trustee), the Trustee shall, by notice in writing to the Master Servicer, which may be delivered by telecopy, immediately terminate all of the rights and obligations of the Master Servicer thereafter arising under this Agreement, but without prejudice to any rights it may have as a Certificateholder or to reimbursement of Monthly Advances and other advances of its own funds, and the Trustee as successor Master Servicer shall act as provided in Section 8.02 to carry out the duties of the Master Servicer, including the obligation to make any Monthly Advance the nonpayment of which was an Event of Default described in clause (vi) of this Section 8.01. Any such action taken by the Trustee or other successor Master Servicer must be prior to the distribution on the relevant Distribution Date.

Section 8.02 Trustee to Act; Appointment of Successor. (a) Upon the receipt by the Master Servicer of a notice of termination pursuant to Section 8.01 or an Opinion of Independent Counsel pursuant to Section 7.05 to the effect that the Master Servicer is legally unable to act or to delegate its duties to a Person which is legally able to act, the Trustee shall automatically

become the successor in all respects to the Master Servicer in its capacity under this Agreement and the transactions set forth or provided for herein and shall thereafter be subject to all the responsibilities, duties, liabilities and limitations on liabilities relating thereto placed on the Master Servicer by the terms and provisions hereof; provided, however, that the Company shall have the right to either (a) immediately assume the duties of the Master Servicer or (b) within 30 days select a successor Master Servicer; provided further, however, that the Trustee or any other successor shall have no obligation whatsoever with respect to any liability incurred by the Master Servicer at or prior to the time of termination. As compensation therefor, but subject to Section 7.06, the Trustee shall be entitled to compensation which the Master Servicer would have been entitled to retain if the Master Servicer had continued to act hereunder, except for those amounts due the Master Servicer as reimbursement permitted under this Agreement for advances previously made or expenses previously incurred. Notwithstanding the above, the Trustee may, if it shall be unwilling so to act, or shall, if it is legally unable so to act, appoint or petition a court of competent jurisdiction to appoint, any established housing and home finance institution which is a Xxxxxx Mae- or Xxxxxxx Mac-approved servicer, and with respect to a successor to the Master Servicer only, having a net worth of not less than $10,000,000, as the successor to the Master Servicer hereunder in the assumption of all or any part of the responsibilities, duties or liabilities of the Master Servicer hereunder; provided, that the Trustee shall be provided with a letter from each Rating Agency that the ratings, if any, on each of the Certificates will not be lowered as a result of the selection of the successor to the Master Servicer. Pending appointment of another successor to the Master Servicer hereunder, the Trustee shall act in such capacity as hereinabove provided. In connection with such appointment and assumption, the Trustee may make such arrangements for the compensation of such successor out of payments on the Mortgage Loans as it and such successor shall agree; provided, however, that the provisions of Section 7.06 shall apply, the compensation shall not be in excess of that which the Master Servicer would have been entitled to if the Master Servicer had continued to act hereunder, and that such successor shall undertake and assume the obligations of the Trustee to pay compensation to any third Person acting as an agent or independent contractor in the performance of master servicing responsibilities hereunder. The Trustee and such successor shall take such action, consistent with this Agreement, as shall be necessary to effectuate any such succession.

(b) If the Trustee shall succeed to any duties of the Master Servicer respecting the Mortgage Loans as provided herein, it shall do so in a separate capacity and not in its capacity as Trustee and, accordingly, the provisions of Article IX shall be inapplicable to the Trustee in its duties as the successor to the Master Servicer in the servicing of the Mortgage Loans (although such provisions shall continue to apply to the Trustee in its capacity as Trustee); the provisions of Article VII, however, shall apply to it in its capacity as successor master servicer.

Section 8.03 Notification to Certificateholders. Upon any termination or appointment of a successor to the Master Servicer, the Trustee shall give prompt written notice thereof to the Securities Administrator, who shall give prompt written notice thereof to the Certificateholders at their respective addresses appearing in the Certificate Register and to the Rating Agencies.

Section 8.04 Waiver of Defaults. The Trustee shall transmit by mail to the Securities Administrator, who shall give prompt written notice thereof to all Certificateholders, within 60 days after the occurrence of any Event of Default of which a Responsible Officer of the Trustee

has actual knowledge, unless such Event of Default shall have been cured, notice of each such Event of Default. The Holders of Certificates evidencing Fractional Undivided Interests aggregating not less than 51% of the Trust Fund may, on behalf of all Certificateholders, waive any default by the Master Servicer in the performance of its obligations hereunder and the consequences thereof, except a default in the making of or the causing to be made any required distribution on the Certificates, which default may only be waived by Holders of Certificates evidencing Fractional Undivided Interests aggregating 100% of the Trust Fund. Upon any such waiver of a past default, such default shall be deemed to cease to exist, and any Event of Default arising therefrom shall be deemed to have been timely remedied for every purpose of this Agreement. No such waiver shall extend to any subsequent or other default or impair any right consequent thereon except to the extent expressly so waived. The Securities Administrator shall give notice of any such waiver to the Trustee, who shall then give such notice to the Rating Agencies.

Section 8.05 List of Certificateholders. Upon written request of three or more Certificateholders of record, for purposes of communicating with other Certificateholders with respect to their rights under this Agreement, the Securities Administrator will afford such Certificateholders access during business hours to the most recent list of Certificateholders held by the Securities Administrator.

ARTICLE IX

CONCERNING THE TRUSTEE AND THE SECURITIES ADMINISTRATOR

Section 9.01 Duties of Trustee and Securities Administrator.

(a) The Trustee, prior to the occurrence of an Event of Default and after the curing or waiver of all Events of Default which may have occurred, and the Securities Administrator each undertake to perform such duties and only such duties as are specifically set forth in this Agreement as duties of the Trustee and the Securities Administrator, respectively. If an Event of Default has occurred and has not been cured or waived, the Trustee shall exercise such of the rights and powers vested in it by this Agreement, and subject to Section 8.02(b) use the same degree of care and skill in their exercise, as a prudent person would exercise under the circumstances in the conduct of his own affairs.

(b) Upon receipt of all resolutions, certificates, statements, opinions, reports, documents, orders or other instruments which are specifically required to be furnished to the Trustee and the Securities Administrator pursuant to any provision of this Agreement, the Trustee and the Securities Administrator, respectively, shall examine them to determine whether on their face they are in the form required by this Agreement; provided, however, that neither the Trustee nor the Securities Administrator shall be responsible for the accuracy or content of any resolution, certificate, statement, opinion, report, document, order or other instrument furnished hereunder; provided, further, that neither the Trustee nor the Securities Administrator shall be responsible for the accuracy or verification of any calculation provided to it pursuant to this Agreement.

(c) On each Distribution Date, the Securities Administrator shall make monthly distributions and the final distribution to the Certificateholders from funds in the Distribution Account as provided in Sections 6.01 and 10.01 herein based solely on the report of the Securities Administrator.

(d) No provision of this Agreement shall be construed to relieve the Trustee or the Securities Administrator from liability for its own negligent action, its own negligent failure to act or its own willful misconduct; provided, however, that:

(i) Prior to the occurrence of an Event of Default, and after the curing or waiver of all such Events of Default which may have occurred, the duties and obligations of the Trustee and the Securities Administrator shall be determined solely by the express provisions of this Agreement, neither the Trustee nor the Securities Administrator shall be liable except for the performance of their respective duties and obligations as are specifically set forth in this Agreement, no implied covenants or obligations shall be read into this Agreement against the Trustee or the Securities Administrator and, in the absence of bad faith on the part of the Trustee or the Securities Administrator, respectively, the Trustee or the Securities Administrator, respectively, may conclusively rely, as to the truth of the statements and the correctness of the opinions expressed therein, upon any certificates or opinions furnished to the Trustee or the Securities Administrator, respectively, and conforming to the requirements of this Agreement;

(ii) Neither the Trustee nor the Securities Administrator shall be liable in its individual capacity for an error of judgment made in good faith by a Responsible Officer or Responsible Officers of the Trustee or an officer of the Securities Administrator, respectively, unless it shall be proved that the Trustee or the Securities Administrator, respectively, was negligent in ascertaining the pertinent facts;

(iii) Neither the Trustee nor the Securities Administrator shall be liable with respect to any action taken, suffered or omitted to be taken by it in good faith in accordance with the directions of the Holders of Certificates evidencing Fractional Undivided Interests aggregating not less than 25% of the Trust Fund, if such action or non-action relates to the time, method and place of conducting any proceeding for any remedy available to the Trustee or the Securities Administrator, respectively, or exercising any trust or other power conferred upon the Trustee or the Securities Administrator, respectively, under this Agreement;

(iv) The Trustee shall not be required to take notice or be deemed to have notice or knowledge of any default or Event of Default unless a Responsible Officer of the Trustee’s Corporate Trust Office shall have actual knowledge thereof or received written notice. In the absence of such notice, the Trustee may conclusively assume there is no such default or Event of Default;

(v) The Trustee shall not in any way be liable by reason of any insufficiency in any Account held by or in the name of Trustee;

(vi) The Securities Administrator shall not in any way be liable by reason of any insufficiency in any Account held by the Securities Administrator or any Account held in the name of the Trustee unless it is determined by a court of competent jurisdiction that the Securities Administrator’s gross negligence or willful misconduct was the primary cause of such insufficiency (except to the extent that the Securities Administrator is obligor and has defaulted thereon);

(vii) Anything in this Agreement to the contrary notwithstanding, in no event shall the Trustee or the Securities Administrator be liable for special, indirect or consequential loss or damage of any kind whatsoever (including but not limited to lost profits), even if the Trustee or the Securities Administrator, respectively, has been advised of the likelihood of such loss or damage and regardless of the form of action;

(viii) None of the Securities Administrator, the Master Servicer, the Depositor, the Company, the Custodian, the Counterparty, the Servicer, the Subservicer or the Trustee shall be responsible for the acts or omissions of the other, it being understood that this Agreement shall not be construed to render them partners, joint venturers or agents of one another and

(ix) Neither the Trustee nor the Securities Administrator shall be required to expend or risk its own funds or otherwise incur financial liability in the performance of any of its duties hereunder, or in the exercise of any of its rights or powers, if there is reasonable ground for believing that the repayment of such funds or indemnity satisfactory to it against such risk or liability is not reasonably assured to it, and none of the provisions contained in this Agreement shall in any event require the Trustee or the Securities Administrator to perform, or be

responsible for the manner of performance of, any of the obligations of the Master Servicer under this Agreement, except during such time, if any, as the Trustee shall be the successor to, and be vested with the rights, duties, powers and privileges of, the Master Servicer in accordance with the terms of this Agreement.

(e) All funds received by the Master Servicer and the Securities Administrator and required to be deposited in the Distribution Account pursuant to this Agreement will be promptly so deposited by the Master Servicer or the Securities Administrator, as applicable.

(f) Except for those actions that the Trustee or the Securities Administrator is required to take hereunder, neither the Trustee nor the Securities Administrator shall have any obligation or liability to take any action or to refrain from taking any action hereunder in the absence of written direction as provided hereunder.

(g) In order to comply with its duties under the USA Patriot Act of 2001, the Trustee shall obtain and verify certain information and documentation from the other parties to this Agreement including, but not limited to, each such party's name, address, and other identifying information.

Section 9.02 Certain Matters Affecting the Trustee and the Securities Administrator. Except as otherwise provided in Section 9.01:

(a) The Trustee and the Securities Administrator may rely and shall be protected in acting or refraining from acting in reliance on any resolution, certificate of the Securities Administrator (with respect to the Trustee only), the Depositor, the Master Servicer or the Servicer, certificate of auditors or any other certificate, statement, instrument, opinion, report, notice, request, consent, order, appraisal, bond or other paper or document believed by it to be genuine and to have been signed or presented by the proper party or parties;

(b) The Trustee and the Securities Administrator may consult with counsel and any advice of such counsel or any Opinion of Counsel shall be full and complete authorization and protection with respect to any action taken or suffered or omitted by it hereunder in good faith and in accordance with such advice or Opinion of Counsel;

(c) Neither the Trustee nor the Securities Administrator shall be under any obligation to exercise any of the trusts or powers vested in it by this Agreement, other than its obligation to give notices pursuant to this Agreement, or to institute, conduct or defend any litigation hereunder or in relation hereto at the request, order or direction of any of the Certificateholders pursuant to the provisions of this Agreement, unless such Certificateholders shall have offered to the Trustee security or indemnity satisfactory to it against the costs, expenses and liabilities which may be incurred therein or thereby.

(d) Nothing contained herein shall, however, relieve the Trustee of the obligation, upon the occurrence of an Event of Default of which a Responsible Officer of the Trustee has actual knowledge (which has not been cured or waived), to exercise such of the rights and powers vested in it by this Agreement, and to use the same degree of care and skill in their exercise, as a prudent person would exercise under the circumstances in the conduct of his own affairs;

(e) Prior to the occurrence of an Event of Default hereunder and after the curing or waiver of all Events of Default which may have occurred, neither the Trustee nor the Securities Administrator shall be liable in its individual capacity for any action taken, suffered or omitted by it in good faith and believed by it to be authorized or within the discretion or rights or powers conferred upon it by this Agreement;

(f) Neither the Trustee nor the Securities Administrator shall be bound to make any investigation into the facts or matters stated in any resolution, certificate, statement, instrument, opinion, report, notice, request, consent, order, approval, bond or other paper or document, unless requested in writing to do so by Holders of Certificates evidencing Fractional Undivided Interests aggregating not less than 25% of the Trust Fund and provided that the payment within a reasonable time to the Trustee or the Securities Administrator, as applicable, of the costs, expenses or liabilities likely to be incurred by it in the making of such investigation is, in the opinion of the Trustee or the Securities Administrator, as applicable, reasonably assured to the Trustee or the Securities Administrator, as applicable, by the security afforded to it by the terms of this Agreement. The Trustee or the Securities Administrator may require reasonable indemnity satisfactory to it against such expense or liability as a condition to taking any such action. The reasonable expense of every such examination shall be paid by the Certificateholders requesting the investigation;

(g) The Trustee and the Securities Administrator may execute any of the trusts or powers hereunder or perform any duties hereunder either directly or through Affiliates, agents or attorneys; provided, however, that the Trustee may not appoint any agent (other than the Custodian) to perform its custodial functions with respect to the Mortgage Files. Neither the Trustee nor the Securities Administrator shall be liable or responsible for the misconduct or negligence of any of the Trustee’s or the Securities Administrator’s agents or attorneys or a custodian or paying agent appointed hereunder by the Trustee or the Securities Administrator with due care and, when required, with the consent of the Master Servicer;

(h) Should the Trustee or the Securities Administrator deem the nature of any action required on its part, other than a payment or transfer by the Securities Administrator under Section 4.01(b) or Section 4.02, to be unclear, the Trustee or the Securities Administrator, respectively, may require prior to such action that it be provided by the Depositor with reasonable further instructions;

(i) The right of the Trustee or the Securities Administrator to perform any discretionary act enumerated in this Agreement shall not be construed as a duty, and neither the Trustee nor the Securities Administrator shall be accountable for other than its negligence or willful misconduct in the performance of any such act;

(j) Neither the Trustee nor the Securities Administrator shall be required to give any bond or surety with respect to the execution of the trust created hereby or the powers granted hereunder, except as provided in Section 9.07; and

(k) None of the Trustee, the Master Servicer nor the Securities Administrator shall have any duty to conduct any affirmative investigation as to the occurrence of any condition requiring the repurchase of any Mortgage Loan by the Seller pursuant to this Agreement or the

Mortgage Loan Purchase Agreement, or the eligibility of any Mortgage Loan for purposes of this Agreement.

Section 9.03 Trustee and Securities Administrator Not Liable for Certificates, Custodial Agreement, Corridor Contract or Mortgage Loans. The recitals contained herein and in the Certificates (other than the signature and countersignature of the Securities Administrator on the Certificates) shall be taken as the statements of the Depositor, and neither the Trustee nor the Securities Administrator shall have any responsibility for their correctness. Neither the Trustee nor the Securities Administrator makes any representation as to the validity or sufficiency of the Certificates (other than with respect to the Securities Administrator only, the signature and countersignature of the Securities Administrator on the Certificates), the Custodial Agreement, the Corridor Contracts or of any Mortgage Loan except as expressly provided in Sections 2.02 and 2.05 hereof; provided, however, that the foregoing shall not relieve the Trustee of the obligation to review the Mortgage Files pursuant to Sections 2.02 and 2.04. The Securities Administrator’s signature and countersignature (or countersignature of its agent) on the Certificates shall be solely in its capacity as Securities Administrator and shall not constitute the Certificates an obligation of the Securities Administrator in any other capacity. Neither the Trustee nor the Securities Administrator shall be accountable for the use or application by the Depositor of any of the Certificates or of the proceeds of such Certificates, or for the use or application of any funds paid to the Depositor with respect to the Mortgage Loans. Neither the Trustee nor, subject to the provisions of Section 2.05, the Securities Administrator shall be responsible for the legality or validity of this Agreement, the Custodial Agreement, the Servicing Agreement, the Corridor Contracts or any document or instrument relating to this Agreement, the validity of the execution of this Agreement or of any supplement hereto or instrument of further assurance, or the validity, priority, perfection or sufficiency of the security for the Certificates issued hereunder or intended to be issued hereunder. Neither the Trustee nor the Securities Administrator shall at any time have any responsibility or liability for or with respect to the legality, validity and enforceability of any Mortgage or any Mortgage Loan, or the perfection and priority of any Mortgage or the maintenance of any such perfection and priority, or for or with respect to the sufficiency of the Trust Fund or its ability to generate the payments to be distributed to Certificateholders, under this Agreement. Neither the Trustee nor the Securities Administrator shall have any responsibility for filing any financing or continuation statement in any public office at any time or to otherwise perfect or maintain the perfection of any security interest or lien granted to it hereunder or to record this Agreement.

Section 9.04 Trustee and Securities Administrator May Own Certificates. The Trustee and the Securities Administrator in their individual capacities or in any capacity other than as Trustee or Securities Administrator hereunder may become the owner or pledgee of any Certificates with the same rights it would have if it were not the Trustee or the Securities Administrator, as applicable, and may otherwise deal with the parties hereto.

Section 9.05 Trustee’s and Securities Administrator’s Fees and Expenses. The fees and expenses of the Trustee and the Securities Administrator shall be paid in accordance with a side letter agreement between the Trustee and the Master Servicer. In addition, the Trustee and the Securities Administrator will be entitled to recover from the Distribution Account all reasonable out-of-pocket expenses, disbursements and advances and the expenses of the Trustee and the Securities Administrator, respectively, in connection with any Event of Default, any breach of

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this Agreement or any claim or legal action (including any pending or threatened claim or legal action) incurred or made by or against the Trustee or the Securities Administrator, respectively, or in the administration of the trusts hereunder (including the reasonable compensation, expenses and disbursements of its counsel) except any such expense, disbursement or advance as may arise from its negligence or intentional misconduct or which is the responsibility of the Certificateholders. If funds in the Distribution Account are insufficient therefor, the Trustee and the Securities Administrator shall recover such expenses from the Depositor. Such compensation and reimbursement obligation shall not be limited by any provision of law in regard to the compensation of a trustee of an express trust.

Section 9.06 Eligibility Requirements for Trustee and Securities Administrator. The Trustee and any successor Trustee and the Securities Administrator and any successor Securities Administrator shall during the entire duration of this Agreement be a state bank or trust company or a national banking association organized and doing business under the laws of such state or the United States of America, authorized under such laws to exercise corporate trust powers, having a combined capital and surplus and undivided profits of at least $40,000,000 or, in the case of a successor Trustee, $50,000,000, subject to supervision or examination by federal or state authority and, in the case of the Trustee, rated "A-1" or higher by S&P with respect to their short-term rating, rated “BBB” or higher by S&P with respect to their long-term rating and rated “BBB” or higher by S&P and “Baa2” or higher by Xxxxx’x with respect to any outstanding long-term unsecured unsubordinated debt, and, in the case of a successor Trustee or successor Securities Administrator other than pursuant to Section 9.10, rated in one of the two highest long-term debt categories of, or otherwise acceptable to, each of the Rating Agencies. If the Trustee publishes reports of condition at least annually, pursuant to law or to the requirements of the aforesaid supervising or examining authority, then for the purposes of this Section 9.06 the combined capital and surplus of such corporation shall be deemed to be its total equity capital (combined capital and surplus) as set forth in its most recent report of condition so published. In case at any time the Trustee or the Securities Administrator shall cease to be eligible in accordance with the provisions of this Section 9.06, the Trustee or the Securities Administrator shall resign immediately in the manner and with the effect specified in Section 9.08.

Section 9.07 Insurance. The Trustee and the Securities Administrator, at their own expense, shall at all times maintain and keep in full force and effect: (i) fidelity insurance, (ii) theft of documents insurance and (iii) forgery insurance (which may be collectively satisfied by a “Financial Institution Bond” and/or a “Bankers’ Blanket Bond”). All such insurance shall be in amounts, with standard coverage and subject to deductibles, as are customary for insurance typically maintained by banks or their affiliates which act as custodians for investor-owned mortgage pools. A certificate of an officer of the Trustee or the Securities Administrator as to the Trustee’s or the Securities Administrator’s, respectively, compliance with this Section 9.07 shall be furnished to any Certificateholder upon reasonable written request.

Section 9.08 Resignation and Removal of the Trustee and Securities Administrator.

(a) The Trustee and the Securities Administrator may at any time resign and be discharged from the Trust hereby created by giving written notice thereof to the Depositor and the Master Servicer, with a copy to the Rating Agencies. Upon receiving such notice of resignation, the Depositor shall promptly appoint a successor Trustee or successor Securities

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Administrator, as applicable, by written instrument, in triplicate, one copy of which instrument shall be delivered to each of the resigning Trustee or Securities Administrator, as applicable, the successor Trustee or Securities Administrator, as applicable. If no successor Trustee or Securities Administrator shall have been so appointed and have accepted appointment within 30 days after the giving of such notice of resignation, the resigning Trustee or Securities Administrator may petition any court of competent jurisdiction for the appointment of a successor Trustee or Securities Administrator.

(b) If at any time the Trustee or the Securities Administrator shall cease to be eligible in accordance with the provisions of Section 9.06 and shall fail to resign after written request therefor by the Depositor or if at any time the Trustee or the Securities Administrator shall become incapable of acting, or shall be adjudged a bankrupt or insolvent, or a receiver of the Trustee or the Securities Administrator, as applicable, or of its property shall be appointed, or any public officer shall take charge or control of the Trustee or the Securities Administrator, as applicable, or of its property or affairs for the purpose of rehabilitation, conservation or liquidation, then the Depositor shall promptly remove the Trustee, or shall be entitled to remove the Securities Administrator, as applicable, and appoint a successor Trustee or Securities Administrator, as applicable, by written instrument, in triplicate, one copy of which instrument shall be delivered to each of the Trustee or Securities Administrator, as applicable, so removed, and the successor Trustee or Securities Administrator, as applicable.

(c) The Holders of Certificates evidencing Fractional Undivided Interests aggregating not less than 51% of the Trust Fund may at any time remove the Trustee or the Securities Administrator and appoint a successor Trustee or Securities Administrator by written instrument or instruments, in quintuplicate, signed by such Holders or their attorneys-in-fact duly authorized, one complete set of which instruments shall be delivered to the Depositor, the Master Servicer, the Securities Administrator (if the Trustee is removed), the Trustee (if the Securities Administrator is removed), and the Trustee or Securities Administrator so removed and the successor so appointed. In the event that the Trustee or Securities Administrator is removed by the Holders of Certificates in accordance with this Section 9.08(c), the Holders of such Certificates shall be responsible for paying any compensation payable hereunder to a successor Trustee or successor Securities Administrator, in excess of the amount paid hereunder to the predecessor Trustee or predecessor Securities Administrator, as applicable.

(d) No resignation or removal of the Trustee or the Securities Administrator and appointment of a successor Trustee or Securities Administrator pursuant to any of the provisions of this Section 9.08 shall become effective except upon appointment of and acceptance of such appointment by the successor Trustee or Securities Administrator as provided in Section 9.09.

Section 9.09 Successor Trustee and Successor Securities Administrator.

(a) Any successor Trustee or Securities Administrator appointed as provided in Section 9.08 shall execute, acknowledge and deliver to the Depositor and to its predecessor Trustee or Securities Administrator an instrument accepting such appointment hereunder. The resignation or removal of the predecessor Trustee or Securities Administrator shall then become effective and such successor Trustee or Securities Administrator, without any further act, deed or conveyance, shall become fully vested with all the rights, powers, duties and obligations of its

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predecessor hereunder, with like effect as if originally named as Trustee or Securities Administrator herein. The predecessor Trustee or Securities Administrator shall, after its receipt of payment in full of its outstanding fees and expenses promptly deliver to the successor Trustee or Securities Administrator, as applicable, all assets and records of the Trust held by it hereunder, and the Depositor and the predecessor Trustee or Securities Administrator, as applicable, shall execute and deliver such instruments and do such other things as may reasonably be required for more fully and certainly vesting and confirming in the successor Trustee or Securities Administrator, as applicable, all such rights, powers, duties and obligations.

(b) No successor Trustee or Securities Administrator shall accept appointment as provided in this Section 9.09 unless at the time of such acceptance such successor Trustee or Securities Administrator shall be eligible under the provisions of Section 9.06.

(c) Upon acceptance of appointment by a successor Trustee or Securities Administrator as provided in this Section 9.09, the successor Trustee or Securities Administrator shall mail notice of the succession of such Trustee or Securities Administrator hereunder to all Certificateholders at their addresses as shown in the Certificate Register and to the Rating Agencies. The Company shall pay the cost of any mailing by the successor Trustee or Securities Administrator.

Section 9.10 Merger or Consolidation of Trustee or Securities Administrator. Any state bank or trust company or national banking association into which the Trustee or the Securities Administrator may be merged or converted or with which it may be consolidated or any state bank or trust company or national banking association resulting from any merger, conversion or consolidation to which the Trustee or the Securities Administrator, respectively, shall be a party, or any state bank or trust company or national banking association succeeding to all or substantially all of the corporate trust business of the Trustee or the Securities Administrator, respectively, shall be the successor of the Trustee or the Securities Administrator, respectively, hereunder, provided such state bank or trust company or national banking association shall be eligible under the provisions of Section 9.06. Such succession shall be valid without the execution, delivery of notice or filing of any paper or any further act on the part of any of the parties hereto, anything herein to the contrary notwithstanding.

Section 9.11 Appointment of Co-Trustee or Separate Trustee.

(a) Notwithstanding any other provisions hereof, at any time, for the purpose of meeting any legal requirements of any jurisdiction in which any part of the Trust or property constituting the same may at the time be located, the Depositor and the Trustee acting jointly shall have the power and shall execute and deliver all instruments to appoint one or more Persons approved by the Trustee and the Depositor to act as co-trustee or co-trustees, jointly with the Trustee, or separate trustee or separate trustees, of all or any part of the Trust, and to vest in such Person or Persons, in such capacity, such title to the Trust, or any part thereof, and, subject to the other provisions of this Section 9.11, such powers, duties, obligations, rights and trusts as the Depositor and the Trustee may consider necessary or desirable.

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(b) If the Depositor shall not have joined in such appointment within 15 days after the receipt by it of a written request so to do, the Trustee shall have the power to make such appointment without the Depositor.

(c) No co-trustee or separate trustee hereunder shall be required to meet the terms of eligibility as a successor Trustee under Section 9.06 hereunder and no notice to Certificateholders of the appointment of co-trustee(s) or separate trustee(s) shall be required under Section 9.08 hereof.

(d) In the case of any appointment of a co-trustee or separate trustee pursuant to this Section 9.11, all rights, powers, duties and obligations conferred or imposed upon the Trustee and required to be conferred on such co-trustee shall be conferred or imposed upon and exercised or performed by the Trustee and such separate trustee or co-trustee jointly, except to the extent that under any law of any jurisdiction in which any particular act or acts are to be performed (whether as Trustee hereunder or as successor to the Master Servicer hereunder), the Trustee shall be incompetent or unqualified to perform such act or acts, in which event such rights, powers, duties and obligations (including the holding of title to the Trust or any portion thereof in any such jurisdiction) shall be exercised and performed by such separate trustee or co-trustee at the direction of the Trustee.

(e) Any notice, request or other writing given to the Trustee shall be deemed to have been given to each of the then separate trustees and co-trustees, as effectively as if given to each of them. Every instrument appointing any separate trustee or co-trustee shall refer to this Agreement and the conditions of this Article IX. Each separate trustee and co-trustee, upon its acceptance of the trusts conferred, shall be vested with the estates or property specified in its instrument of appointment, either jointly with the Trustee or separately, as may be provided therein, subject to all the provisions of this Agreement, specifically including every provision of this Agreement relating to the conduct of, affecting the liability of, or affording protection to, the Trustee. Every such instrument shall be filed with the Trustee.

(f) To the extent not prohibited by law, any separate trustee or co-trustee may, at any time, request the Trustee, its agent or attorney-in-fact, with full power and authority, to do any lawful act under or with respect to this Agreement on its behalf and in its name. If any separate trustee or co-trustee shall die, become incapable of acting, resign or be removed, all of its estates, properties rights, remedies and trusts shall vest in and be exercised by the Trustee, to the extent permitted by law, without the appointment of a new or successor Trustee.

(g) No trustee under this Agreement shall be personally liable by reason of any act or omission of another trustee under this Agreement. The Depositor and the Trustee acting jointly may at any time accept the resignation of or remove any separate trustee or co-trustee.

Section 9.12 Federal Information Returns and Reports to Certificateholders; REMIC Administration.

(a) For federal income tax purposes, the taxable year of each 2005-AR1 REMIC shall be a calendar year and the Securities Administrator shall maintain or cause the maintenance of the books of each such 2005-AR1 REMIC on the accrual method of accounting.

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(b) The Securities Administrator shall prepare and file or cause to be filed with the Internal Revenue Service, and the Trustee shall upon the written instruction of the Securities Administrator sign, Federal tax information returns or elections required to be made hereunder with respect to each 2005-AR1 REMIC, the Trust Fund, if applicable, and the Certificates containing such information and at the times and in the manner as may be required by the Code or applicable Treasury regulations, and the Securities Administrator shall furnish to each Holder of Certificates at any time during the calendar year for which such returns or reports are made such statements or information at the times and in the manner as may be required thereby, including, without limitation, reports relating to mortgaged property that is abandoned or foreclosed, receipt of mortgage interests in kind in a trade or business, a cancellation of indebtedness, interest, original issue discount and market discount or premium (using a constant prepayment assumption of 25% CPR). The Securities Administrator will apply for an Employee Identification Number from the IRS under Form SS-4 or any other acceptable method for all tax entities. In connection with the foregoing, the Securities Administrator shall timely prepare and file, and the Trustee shall upon the written instruction of the Securities Administrator sign, IRS Form 8811, which shall provide the name and address of the person who can be contacted to obtain information required to be reported to the holders of regular interests in each 2005-AR1 REMIC (the “REMIC Reporting Agent”). The Securities Administrator shall make elections to treat each 2005-AR1 REMIC as a REMIC (which elections shall apply to the taxable period ending December 31, 2005 and each calendar year thereafter) in such manner as the Code or applicable Treasury regulations may prescribe, and as described by the Securities Administrator. The Trustee shall upon the written instruction of the Securities Administrator sign all tax information returns filed pursuant to this Section and any other returns as may be required by the Code. The Holder of the largest percentage interest in the Class R Certificates is hereby designated as the “Tax Matters Person” (within the meaning of Treas. Reg. §§1.860F-4(d)) for each 2005-AR1 REMIC. The Securities Administrator is hereby designated and appointed as the agent of each such Tax Matters Person. Any Holder of a Residual Certificate will by acceptance thereof appoint the Securities Administrator as agent and attorney-in-fact for the purpose of acting as Tax Matters Person for each 2005-AR1 REMIC during such time as the Securities Administrator does not own any such Residual Certificate. In the event that the Code or applicable Treasury regulations prohibit the Trustee from signing tax or information returns or other statements, or the Securities Administrator from acting as agent for the Tax Matters Person, the Securities Administrator shall take whatever action that in its sole good faith judgment is necessary for the proper filing of such information returns or for the provision of a tax matters person, including designation of the Holder of the largest percentage interest in a Residual Certificate to sign such returns or act as tax matters person. Each Holder of a Residual Certificate shall be bound by this Section.

(c) The Securities Administrator shall provide upon request and receipt of reasonable compensation, such information as required in Section 860D(a)(6)(B) of the Code to the Internal Revenue Service, to any Person purporting to transfer a Residual Certificate to a Person other than a transferee permitted by Section 5.05(b), and to any regulated investment company, real estate investment trust, common trust fund, partnership, trust, estate, organization described in Section 1381 of the Code, or nominee holding an interest in a pass-through entity described in Section 860E(e)(6) of the Code, any record holder of which is not a transferee permitted by Section 5.05(b) (or which is deemed by statute to be an entity with a disqualified member).

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(d) The Securities Administrator shall prepare and file or cause to be filed, and the Trustee shall upon the written instruction of the Securities Administrator sign, any state income tax returns required under Applicable State Law with respect to each REMIC or the Trust Fund.

(e) Notwithstanding any other provision of this Agreement, the Securities Administrator shall comply with all federal withholding requirements respecting payments to Certificateholders of interest or original issue discount on the Mortgage Loans, that the Securities Administrator reasonably believes are applicable under the Code. The consent of Certificateholders shall not be required for such withholding. In the event the Securities Administrator withholds any amount from interest or original issue discount payments or advances thereof to any Certificateholder pursuant to federal withholding requirements, the Securities Administrator shall, together with its monthly report to such Certificateholders, indicate such amount withheld.

(f) The Securities Administrator agrees to indemnify the Trust Fund and the Depositor for any taxes and costs including, without limitation, any reasonable attorneys fees imposed on or incurred by the Trust Fund, the Depositor or the Master Servicer, as a result of a breach of the Securities Administrator’s covenants set forth in this Section 9.12.

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ARTICLE X

TERMINATION

Xxxxxxx 00.00 Xxxxxxxxxxx Xxxx Xxxxxxxxxx or Liquidation of the Mortgage Loans.

(a) Subject to Section 10.02, the respective obligations and responsibilities of the Depositor, the Trustee, the Master Servicer and the Securities Administrator created hereby, other than the obligation of the Securities Administrator to make payments to Certificateholders as hereinafter set forth shall terminate upon:

(i) the repurchase at the option of the Servicer or its designee, or the Master Servicer, of all of the Mortgage Loans and all related REO Property remaining in the Trust at a price (the “Termination Purchase Price”) equal to the sum of, without duplication, (a) 100% of the Outstanding Principal Balance of each Mortgage Loan (other than a Mortgage Loan related to REO Property) as of the date of repurchase, net of the principal portion of any unreimbursed Monthly Advances on the Mortgage Loans unpaid to, but not including, the first day of the month of repurchase, (b) the appraised value of any related REO Property, less the good faith estimate of the Depositor of liquidation expenses to be incurred in connection with its disposal thereof (but not more than the Outstanding Principal Balance of the related Mortgage Loan, together with interest at the applicable Mortgage Interest Rate accrued on that balance but unpaid to, but not including, the first day of the month of repurchase), such appraisal to be calculated by an appraiser selected by the Depositor and at the expense of the Depositor, (c) unreimbursed out-of pocket costs of the Master Servicer, including unreimbursed servicing advances and the interest portion of any unreimbursed Monthly Advances, made on the Mortgage Loans prior to the exercise of such repurchase right, (d) any costs and damages incurred by the Trust in connection with any violation of any predatory or abusive lending laws with respect to a Mortgage Loan, and (e) any unreimbursed costs and expenses of the Trustee, the Master Servicer, the Custodian and the Securities Administrator payable pursuant to Section 9.05 or Section 7.04(c);

(ii) the later of the making of the final payment or other liquidation, or any advance with respect thereto, of the last Mortgage Loan, remaining in the Trust Fund or the disposition of all property acquired with respect to any Mortgage Loan; provided, however, that in the event that an advance has been made, but not yet recovered, at the time of such termination, the Person having made such advance shall be entitled to receive, notwithstanding such termination, any payments received subsequent thereto with respect to which such advance was made; or

(iii) the payment to the Certificateholders of all amounts required to be paid to them pursuant to this Agreement.

[Auction Procedures / Reserve Account for Exhibit C Loans to be discussed.]

Such designee of the Servicer, if it is not an affiliate of the Servicer, shall be deemed to represent that one of the following will be true and correct: (i) the exercise of the optional termination right set forth in Section 10.01(a)(i) shall not result in a non-exempt prohibited transaction under ERISA or Section 4975 of the Code or (ii) such designee is (A) not a party in interest with respect to any Plan and (B) is not a "benefit plan investor" (other than a

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plan sponsored or maintained by such designee, provided that no assets of such plan are invested or deemed to be invested in the Certificates). If the holder of the option is unable to exercise such option by reason of the preceding sentence, then the Servicer may exercise such option.

(b) In no event, however, shall the Trust created hereby continue beyond the expiration of 21 years from the death of the last survivor of the descendants of Xxxxxx X. Xxxxxxx, the late Ambassador of the United States to the Court of St. James’s, living on the date of this Agreement.

(c) (i) The right of the Servicer or its designee, or the Master Servicer, to repurchase all the assets of the Trust Fund described in Section 10.01(a)(i) above shall be exercisable only if (i) the Scheduled Principal Balance of the Mortgage Loans at the time of any such repurchase is less than 10%, in the case of the Servicer, or 1%, in the case of the Master Servicer, of the Cut-off Date Balance or (ii) the Depositor, based upon an Opinion of Counsel addressed to the Depositor, the Trustee and the Securities Administrator has determined that the REMIC status of any 2005-AR1 REMIC has been lost or that a substantial risk exists that such REMIC status will be lost for the then-current taxable year. At any time thereafter, in the case of (i) or (ii) above, the Depositor may elect to terminate any 2005-AR1 REMIC at any time, and upon such election, the Depositor or its designee, shall purchase in accordance with Section 10.01(a)(i) above all the assets of the Trust Fund.

(d) The Securities Administrator shall give notice of any termination to the Certificateholders, with a copy to the Master Servicer, the Trustee and the Rating Agencies, upon which the Certificateholders shall surrender their Certificates to the Securities Administrator for payment of the final distribution and cancellation. Such notice shall be given by letter, mailed not earlier than the 15th day and not later than the 25th day of the month next preceding the month of such final distribution, and shall specify (i) the Distribution Date upon which final payment of the Certificates will be made upon presentation and surrender of the Certificates at the Corporate Trust Office of the Securities Administrator therein designated, (ii) the amount of any such final payment and (iii) that the Record Date otherwise applicable to such Distribution Date is not applicable, payments being made only upon presentation and surrender of the Certificates at the Corporate Trust Office of the Securities Administrator therein specified.

(e) If the option of the Servicer or its designee, or the Master Servicer, to repurchase or cause the repurchase of all Mortgage Loans and the related assets of the Trust Fund described in Section 10.01(a)(i) above is exercised, Servicer or its designee, or the Master Servicer, as applicable, shall deliver to the Securities Administrator for deposit in the Distribution Account, by the Business Day prior to the applicable Distribution Date, an amount equal to the Termination Purchase Price. Upon presentation and surrender of the Certificates by the Certificateholders, the Securities Administrator shall distribute to the Certificateholders from amounts then on deposit in the Distribution Account an amount determined as follows: with respect to each Certificate (other than the Class R Certificates and the Class XP Certificates), the outstanding Current Principal Amount, plus with respect to each Certificate (other than the Class R Certificates and the Class XP Certificates), one month’s interest thereon at the applicable Pass-Through Rate; and with respect to the Class R Certificates and the Class XP Certificates, the percentage interest evidenced thereby multiplied by the difference, if any, between the above described repurchase price and the aggregate amount to be distributed to the Holders of the

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Certificates (other than the Class R Certificates and the Class XP Certificates). If the proceeds with respect to the Mortgage Loans are not sufficient to pay all of the Certificates in full (other than the Class R Certificates and the Class XP Certificates), any such deficiency will be allocated first, to the Class I-B Certificates, in inverse order of their numerical designation, second, to the Class I-M-X Certificates, and then to the Senior Certificates, on a pro rata basis. Upon deposit of the required repurchase price (as notified to the Trustee) and following such final Distribution Date, the Trustee or the Custodian shall release promptly to the Servicer or its designee, or the Master Servicer, as applicable, the Mortgage Files for the remaining applicable Mortgage Loans, and the Accounts with respect thereto shall terminate, subject to the Securities Administrator’s obligation to hold any amounts payable to the Certificateholders in trust without interest pending final distributions pursuant to Section 10.01(g). Any other amounts remaining in the Accounts will belong to the Depositor.

(f) Upon the presentation and surrender of the Certificates, the Securities Administrator shall distribute to the remaining Certificateholders, in accordance with their respective interests, all distributable amounts remaining in the Distribution Account. Upon deposit by the Master Servicer of such distributable amounts (as notified to the Trustee), and following such final Distribution Date, the Trustee shall release promptly to the Depositor or its designee the Mortgage Files for the remaining Mortgage Loans, and the Distribution Account shall terminate, subject to the Securities Administrator’s obligation to hold any amounts payable to the Certificateholders in trust without interest pending final distributions pursuant to this Section 10.01(f).

(g) If not all of the Certificateholders shall surrender their Certificates for cancellation within six months after the time specified in the above-mentioned written notice, the Securities Administrator shall give a second written notice to the remaining Certificateholders to surrender their Certificates for cancellation and receive the final distribution with respect thereto. If within six months after the second notice, not all the Certificates shall have been surrendered for cancellation, the Securities Administrator may take appropriate steps, or appoint any agent to take appropriate steps, to contact the remaining Certificateholders concerning surrender of their Certificates, and the cost thereof shall be paid out of the funds and other assets which remain subject to this Agreement.

Section 10.02 Additional Termination Requirements. (a) If the option of the Depositor to repurchase all the Mortgage Loans under Section 10.01(a)(i) above is exercised, the Trust Fund and each 2005-AR1 REMIC shall be terminated in accordance with the following additional requirements, unless the Securities Administrator and the Trustee has been furnished with an Opinion of Counsel addressed to the Securities Administrator and the Trustee to the effect that the failure of the Trust to comply with the requirements of this Section 10.02 will not (i) result in the imposition of taxes on “prohibited transactions” as defined in Section 860F of the Code on each 2005-AR1 REMIC or (ii) cause any 2005-AR1 REMIC to fail to qualify as a 2005-AR1 REMIC at any time that any Regular Certificates are outstanding:

(i) within 90 days prior to the final Distribution Date, at the written direction of Depositor, the Securities Administrator, as agent for the respective Tax Matters Persons, shall adopt a plan of complete liquidation of each 2005-AR1 REMIC in the case of a termination under Section 10.01(a)(i). Such plan, which shall be provided to the

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Securities Administrator by Depositor, shall meet the requirements of a “qualified liquidation” under Section 860F of the Code and any regulations thereunder.

(ii) the Depositor shall notify the Trustee and the Securities Administrator at the commencement of such 90-day liquidation period and, at or prior to the time of making of the final payment on the Certificates, the Trustee shall, as directed, sell or otherwise dispose of all of the remaining assets of the Trust Fund in accordance with the terms hereof; and

(iii) at or after the time of adoption of such a plan of complete liquidation of any 2005-AR1 REMIC and at or prior to the final Distribution Date, the Trustee shall sell for cash all of the assets of the Trust to or at the direction of the Depositor, and each 2005-AR1 REMIC, shall terminate at such time.

(b) By their acceptance of the Residual Certificates, the Holders thereof hereby (i) agree to adopt such a plan of complete liquidation of the related 2005-AR1 REMIC upon the written request of the Depositor, and to take such action in connection therewith as may be reasonably requested by the Depositor and (ii) appoint the Depositor as their attorney-in-fact, with full power of substitution, for purposes of adopting such a plan of complete liquidation. The Securities Administrator on behalf of the Trustee shall adopt such plan of liquidation by filing the appropriate statement on the final tax return of each 2005-AR1 REMIC. Upon complete liquidation or final distribution of all of the assets of the Trust Fund, the Trust Fund and each 2005-AR1 REMIC shall terminate.

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ARTICLE XI

MISCELLANEOUS PROVISIONS

Section 11.01 Intent of Parties. The parties intend that each 2005-AR1 REMIC shall be treated as a REMIC for federal income tax purposes and that the provisions of this Agreement should be construed in furtherance of this intent. Notwithstanding any other express or implied agreement to the contrary, the Seller, the Master Servicer, the Securities Administrator, the Depositor, the Trustee, each recipient of the related Prospectus Supplement and, by its acceptance thereof, each holder of a Certificate, agrees and acknowledges that each party hereto has agreed that each of them and their employees, representatives and other agents may disclose, immediately upon commencement of discussions, to any and all persons the tax treatment and tax structure of the Certificates and the 2005-AR1 REMICs, the transactions described herein and all materials of any kind (including opinions and other tax analyses) that are provided to any of them relating to such tax treatment and tax structure except where confidentiality is reasonably necessary to comply with the securities laws of any applicable jurisdiction. For purposes of this paragraph, the terms “tax treatment” and “tax structure” have the meanings set forth in Treasury Regulation Sections 1.6011-4(c), 301.6111-2(c) and 301.6112-1(d).

Section 11.02 Amendment.

(a) This Agreement may be amended from time to time by the Company, the Depositor, the Master Servicer, the Securities Administrator and the Trustee, without notice to or the consent of any of the Certificateholders, to (i) cure any ambiguity, (ii) correct or supplement any provisions herein that may be defective or inconsistent with any other provisions herein, (iii) conform any provisions herein to the provisions in the Prospectus, (iv) comply with any changes in the Code or (v) make any other provisions with respect to matters or questions arising under this Agreement which shall not be inconsistent with the provisions of this Agreement; provided, however, that with respect to clauses (iv) and (v) of this Section 11.02(a), such action shall not, as evidenced by an Opinion of Independent Counsel, addressed to the Trustee, adversely affect in any material respect the interests of any Certificateholder.

(b) This Agreement may also be amended from time to time by the Company, the Master Servicer, the Depositor, the Securities Administrator and the Trustee, with the consent of the Holders of Certificates evidencing Fractional Undivided Interests aggregating not less than 51% of the Trust Fund or of the applicable Class or Classes, if such amendment affects only such Class or Classes, for the purpose of adding any provisions to or changing in any manner or eliminating any of the provisions of this Agreement or of modifying in any manner the rights of the Certificateholders; provided, however, that no such amendment shall (i) reduce in any manner the amount of, or delay the timing of, payments received on Mortgage Loans which are required to be distributed on any Certificate without the consent of the Holder of such Certificate, (ii) reduce the aforesaid percentage of Certificates the Holders of which are required to consent to any such amendment, without the consent of the Holders of all Certificates then outstanding, or (iii) cause any 2005-AR1 REMIC to fail to qualify as a REMIC for federal income tax purposes, as evidenced by an Opinion of Independent Counsel addressed to the Trustee which shall be provided to the Trustee other than at the Trustee’s expense. Notwithstanding any other provision of this Agreement, for purposes of the giving or

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withholding of consents pursuant to this Section 11.02(b), Certificates registered in the name of or held for the benefit of the Depositor, the Securities Administrator, the Master Servicer, or the Trustee or any Affiliate thereof shall be entitled to vote their Fractional Undivided Interests with respect to matters affecting such Certificates.

(c) Promptly after the execution of any such amendment, the Securities Administrator shall furnish a copy of such amendment or written notification of the substance of such amendment to each Certificateholder and the Trustee, and the Trustee shall then provide a copy of such amendment or notice to the Rating Agencies.

(d) In the case of an amendment under Section 11.02(b) above, it shall not be necessary for the Certificateholders to approve the particular form of such an amendment. Rather, it shall be sufficient if the Certificateholders approve the substance of the amendment. The manner of obtaining such consents and of evidencing the authorization of the execution thereof by Certificateholders shall be subject to such reasonable regulations as the Securities Administrator may prescribe.

(e) Prior to the execution of any amendment to this Agreement, the Trustee and the Securities Administrator shall be entitled to receive and rely upon an Opinion of Counsel addressed to the Trustee and the Securities Administrator stating that the execution of such amendment is authorized or permitted by this Agreement. The Trustee and the Securities Administrator may, but shall not be obligated to, enter into any such amendment which affects the Trustee’s or the Securities Administrator’s own respective rights, duties or immunities under this Agreement.

(f) Notwithstanding the foregoing, no amendment shall be made to the Agreement which shall change the permitted activities of the Trust as described in Section 2.08 hereof.

Section 11.03 Recordation of Agreement. To the extent permitted by applicable law, this Agreement is subject to recordation in all appropriate public offices for real property records in all the counties or other comparable jurisdictions in which any or all of the Mortgaged Properties are situated, and in any other appropriate public recording office or elsewhere. The Depositor shall effect such recordation, at the expense of the Trust upon the request in writing of a Certificateholder, but only if such direction is accompanied by an Opinion of Counsel (provided at the expense of the Certificateholder requesting recordation) to the effect that such recordation would materially and beneficially affect the interests of the Certificateholders or is required by law.

Section 11.04 Limitation on Rights of Certificateholders.

(a) The death or incapacity of any Certificateholder shall not terminate this Agreement or the Trust, nor entitle such Certificateholder’s legal representatives or heirs to claim an accounting or to take any action or proceeding in any court for a partition or winding up of the Trust, nor otherwise affect the rights, obligations and liabilities of the parties hereto or any of them.

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(b) Except as expressly provided in this Agreement, no Certificateholders shall have any right to vote or in any manner otherwise control the operation and management of the Trust, or the obligations of the parties hereto, nor shall anything herein set forth, or contained in the terms of the Certificates, be construed so as to establish the Certificateholders from time to time as partners or members of an association; nor shall any Certificateholders be under any liability to any third Person by reason of any action taken by the parties to this Agreement pursuant to any provision hereof.

(c) No Certificateholder shall have any right by virtue of any provision of this Agreement to institute any suit, action or proceeding in equity or at law upon, under or with respect to this Agreement against the Depositor, the Securities Administrator, the Master Servicer or any successor to any such parties unless (i) such Certificateholder previously shall have given to the Securities Administrator a written notice of a continuing default, as herein provided, (ii) the Holders of Certificates evidencing Fractional Undivided Interests aggregating not less than 51% of the Trust Fund shall have made written request upon the Trustee to institute such action, suit or proceeding in its own name as Trustee hereunder and shall have offered to the Trustee such indemnity as it may require against the costs and expenses and liabilities to be incurred therein or thereby, and (iii) the Trustee, for 60 days after its receipt of such notice, request and offer of indemnity, shall have neglected or refused to institute any such action, suit or proceeding.

(d) No one or more Certificateholders shall have any right by virtue of any provision of this Agreement to affect the rights of any other Certificateholders or to obtain or seek to obtain priority or preference over any other such Certificateholder, or to enforce any right under this Agreement, except in the manner herein provided and for the equal, ratable and common benefit of all Certificateholders. For the protection and enforcement of the provisions of this Section 11.04, each and every Certificateholder and the Trustee shall be entitled to such relief as can be given either at law or in equity.

Section 11.05 Acts of Certificateholders.

(a) Any request, demand, authorization, direction, notice, consent, waiver or other action provided by this Agreement to be given or taken by Certificateholders may be embodied in and evidenced by one or more instruments of substantially similar tenor signed by such Certificateholders in person or by an agent duly appointed in writing. Except as herein otherwise expressly provided, such action shall become effective when such instrument or instruments are delivered to the Securities Administrator and, where it is expressly required, to the Depositor. Proof of execution of any such instrument or of a writing appointing any such agent shall be sufficient for any purpose of this Agreement and conclusive in favor of the Securities Administrator and the Depositor, if made in the manner provided in this Section 11.05.

(b) The fact and date of the execution by any Person of any such instrument or writing may be proved by the affidavit of a witness of such execution or by a certificate of a notary public or other officer authorized by law to take acknowledgments of deeds, certifying that the individual signing such instrument or writing acknowledged to him the execution thereof. Where such execution is by a signer acting in a capacity other than his or her individual capacity, such certificate or affidavit shall also constitute sufficient proof of his or her authority.

113

The fact and date of the execution of any such instrument or writing, or the authority of the individual executing the same, may also be proved in any other manner which the Securities Administrator deems sufficient.

(c) The ownership of Certificates (notwithstanding any notation of ownership or other writing on such Certificates, except an endorsement in accordance with Section 5.02 made on a Certificate presented in accordance with Section 5.04) shall be proved by the Certificate Register, and neither the Trustee, the Securities Administrator, the Depositor, the Master Servicer nor any successor to any such parties shall be affected by any notice to the contrary.

(d) Any request, demand, authorization, direction, notice, consent, waiver or other action of the holder of any Certificate shall bind every future holder of the same Certificate and the holder of every Certificate issued upon the registration of transfer or exchange thereof, if applicable, or in lieu thereof with respect to anything done, omitted or suffered to be done by the Trustee, the Securities Administrator, the Depositor, the Master Servicer or any successor to any such party in reliance thereon, whether or not notation of such action is made upon such Certificates.

(e) In determining whether the Holders of the requisite percentage of Certificates evidencing Fractional Undivided Interests have given any request, demand, authorization, direction, notice, consent or waiver hereunder, Certificates owned by the Trustee, the Securities Administrator, the Depositor, the Master Servicer or any Affiliate thereof shall be disregarded, except as otherwise provided in Section 11.02(b) and except that, in determining whether the Securities Administrator shall be protected in relying upon any such request, demand, authorization, direction, notice, consent or waiver, only Certificates of which a Responsible Officer of the Securities Administrator has actual knowledge to be so owned shall be so disregarded. Certificates which have been pledged in good faith to the Trustee, the Securities Administrator, the Depositor, the Master Servicer or any Affiliate thereof may be regarded as outstanding if the pledgor establishes to the satisfaction of the Securities Administrator the pledgor’s right to act with respect to such Certificates and that the pledgor is not an Affiliate of the Trustee, the Securities Administrator, the Depositor, or the Master Servicer, as the case may be.

Section 11.06 Governing Law. THIS AGREEMENT AND THE CERTIFICATES SHALL BE CONSTRUED IN ACCORDANCE WITH THE LAWS OF THE STATE OF NEW YORK WITHOUT REFERENCE TO ITS CONFLICT OF LAWS RULES (OTHER THAN SECTION 5-1401 OF THE GENERAL OBLIGATIONS LAW, WHICH THE PARTIES HERETO EXPRESSLY RELY UPON IN THE CHOICE OF SUCH LAW AS THE GOVERNING LAW HEREUNDER) AND THE OBLIGATIONS, RIGHTS AND REMEDIES OF THE PARTIES HEREUNDER SHALL BE DETERMINED IN ACCORDANCE WITH SUCH LAWS.

Section 11.07 Notices. All demands and notices hereunder shall be in writing and shall be deemed given when delivered at (including delivery by facsimile) or mailed by registered mail, return receipt requested, postage prepaid, or by recognized overnight courier, to (i) in the case of the Depositor, 000 Xxxxxxx Xxxxxx, Xxx Xxxx, Xxx Xxxx 00000, Attention: Vice President-Servicing, telecopier number: (000) 000-0000, or to such other address as may

114

hereafter be furnished to the other parties hereto in writing; (ii) in the case of the Trustee, at its Corporate Trust Office, or such other address as may hereafter be furnished to the other parties hereto in writing; (iii) in the case of the Company, 000 Xxxxxxx Xxxxxx, Xxx Xxxx, Xxx Xxxx 00000, Attention: Vice President-Servicing, telecopier number: (000) 000-0000, or to such other address as may hereafter be furnished to the other parties hereto in writing; (iv) in the case of the Master Servicer or Securities Administrator, Xxxxx Fargo Bank, National Association, X.X. Xxx 00, Xxxxxxxx Xxxxxxxx 00000 (or, in the case of overnight deliveries, 0000 Xxx Xxxxxxxxx Xxxx, Xxxxxxxx, Xxxxxxxx 21045) (Attention: Corporate Trust Services – MortgageIT 2005-AR1), facsimile no.: (000) 000-0000, or such other address as may hereafter be furnished to the other parties hereto in writing; or (v) in the case of the Rating Agencies, Xxxxx’x Investors Service, Inc., 00 Xxxxxx Xxxxxx, Xxx Xxxx, Xxx Xxxx 00000 and Standard & Poor’s, a division of The XxXxxx-Xxxx Companies, Inc., 00 Xxxxx Xxxxxx, Xxx Xxxx, Xxx Xxxx 00000. Any notice delivered to the Depositor, the Master Servicer, the Securities Administrator or the Trustee under this Agreement shall be effective only upon receipt. Any notice required or permitted to be mailed to a Certificateholder, unless otherwise provided herein, shall be given by first-class mail, postage prepaid, at the address of such Certificateholder as shown in the Certificate Register. Any notice so mailed within the time prescribed in this Agreement shall be conclusively presumed to have been duly given when mailed, whether or not the Certificateholder receives such notice.

Section 11.08 Severability of Provisions. If any one or more of the covenants, agreements, provisions or terms of this Agreement shall be for any reason whatsoever held invalid, then such covenants, agreements, provisions or terms shall be deemed severed from the remaining covenants, agreements, provisions or terms of this Agreement and shall in no way affect the validity or enforceability of the other provisions of this Agreement or of the Certificates or the rights of the holders thereof.

Section 11.09 Successors and Assigns. The provisions of this Agreement shall be binding upon and inure to the benefit of the respective successors and assigns of the parties hereto.

Section 11.10 Article and Section Headings. The article and section headings herein are for convenience of reference only, and shall not limit or otherwise affect the meaning hereof.

Section 11.11 Counterparts. This Agreement may be executed in two or more counterparts each of which when so executed and delivered shall be an original but all of which together shall constitute one and the same instrument.

Section 11.12 Notice to Rating Agencies. The article and section headings herein are for convenience of reference only, and shall not limited or otherwise affect the meaning hereof. The Securities Administrator shall promptly provide notice to each Rating Agency with respect to each of the following of which a Responsible Officer of the Securities Administrator has actual knowledge:

1.	Any material change or amendment to this Agreement or the Servicing Agreement;

2.	The occurrence of any Event of Default that has not been cured;

115

3.	The resignation or termination of the Master Servicer, the Trustee or the Securities Administrator;

4.	The repurchase or substitution of any Mortgage Loans;

5.	The final payment to Certificateholders; and

6.	Any change in the location of the Distribution Account.

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IN WITNESS WHEREOF, the Depositor, the Trustee, the Master Servicer and the Securities Administrator have caused their names to be signed hereto by their respective officers thereunto duly authorized as of the day and year first above written.

STRUCTURED ASSET MORTGAGE INVESTMENTS II INC., as Depositor

By: /s/ Xxxxx Xxxxxxxxxxx
Name: Xxxxx Xxxxxxxxxxx
Title: Senior Managing Director

DEUTSCHE BANK NATIONAL TRUST COMPANY, as Trustee

By: /s/ Xxxxxxx Xxxxxxxx
Name: Xxxxxxx Xxxxxxxx
Title: Vice President

By: /s/ Xxxxx Xxxxxx
Name: Xxxxx Xxxxxx
Title: Associate

XXXXX FARGO BANK, NATIONAL ASSOCIATION, as Master Servicer

By: /s/ Xxxxxx Xxxxxx
Name: Xxxxxx Xxxxxx
Title: Vice President

XXXXX FARGO BANK, NATIONAL ASSOCIATION, as Securities Administrator

By: /s/ Xxxxxx Xxxxxx
Name: Xxxxxx Xxxxxx
Title: Vice President

MORTGAGEIT, INC.

By: /s/ Xxxxxx Xxxx
Name: Xxxxxx X. Xxxx
Title: Chief Financial Officer

Accepted and Agreed as to
Sections 2.01, 2.02, 2.03, 2.04, 2.07 and 9.09(c)
in its capacity as Seller

MORTGAGEIT, INC.

By: /s/ Xxxxx Xxxxxxx

Name: Xxxxx X. Xxxxxxx
Title: Executive Vice President

STATE OF NEW YORK	)
	) ss.:
COUNTY OF NEW YORK	)

On the 21st day of November, 2005 before me, a notary public in and for said State, personally appeared Xxxxx Xxxxxxxxxxx, known to me to be a Vice President of Structured Asset Mortgage Investments II Inc., the corporation that executed the within instrument, and also known to me to be the person who executed it on behalf of said corporation, and acknowledged to me that such corporation executed the within instrument.

IN WITNESS WHEREOF, I have hereunto set my hand and affixed my official seal the day and year in this certificate first above written.

/s/ Xxxxxxxx Xxxxxxxx
Notary Public

[Notarial Seal]

STATE OF CALIFORNIA	)
	) ss.:
COUNTY OF ORANGE	)

On the 16th day of November, 2005 before me, a notary public in and for said State, personally appeared Xxxxxxx Xxxxxxxx, known to me to be a Vice President of Deutsche Bank National Trust Company, the entity that executed the within instrument, and also known to me to be the person who executed it on behalf of said entity, and acknowledged to me that such entity executed the within instrument.

IN WITNESS WHEREOF, I have hereunto set my hand and affixed my official seal the

day and year in this certificate first above written.

/s/ Xxx Xxxx Xxxxxxxx
Notary Public

[Notarial Seal]

STATE OF CALIFORNIA	)
	) ss.:
COUNTY OF ORANGE	)

On the 16th day of November, 2005 before me, a notary public in and for said State, personally appeared Xxxxx Xxxxxx, known to me to be a Associate of Deutsche Bank National Trust Company, the entity that executed the within instrument, and also known to me to be the person who executed it on behalf of said entity, and acknowledged to me that such entity executed the within instrument.

IN WITNESS WHEREOF, I have hereunto set my hand and affixed my official seal the

day and year in this certificate first above written.

/s/ Xxx Xxxx Xxxxxxxx
Notary Public

[Notarial Seal]

STATE OF NEW YORK	)
	) ss.:
COUNTY OF NEW YORK	)

On the 18th day of November, 2005, before me, a notary public in and for said State, personally appeared Xxxxxx Xxxxxx, known to me to be an Vice President of Xxxxx Fargo Bank, National Association, the entity that executed the within instrument, and also known to me to be the person who executed it on behalf of said entity, and acknowledged to me that such entity executed the within instrument.

IN WITNESS WHEREOF, I have hereunto set my hand and affixed my official seal the

day and year in this certificate first above written.

/s/ Xxxxx X. Xxxxxx
Notary Public

[Notarial Seal]

STATE OF NEW YORK	)
	) ss.:
COUNTY OF NEW YORK	)

On the 18th day of November, 2005 before me, a notary public in and for said State, personally appeared Xxxxxx X. Xxxx, known to me to be Chief Financial Officer of MortgageIT, Inc., the corporation that executed the within instrument, and also known to me to be the person who executed it on behalf of said corporation, and acknowledged to me that such corporation executed the within instrument.

IN WITNESS WHEREOF, I have hereunto set my hand and affixed my official seal the day and year in this certificate first above written.

/s/ Xxxx Xxxxxxx
Notary Public

[Notarial Seal]

STATE OF NEW YORK	)
	) ss.:
COUNTY OF NEW YORK	)

On the 18th day of November, 2005 before me, a notary public in and for said State, personally appeared Xxxxx X. Xxxxxxx, known to me to be Executive Vice President of MortgageIT, Inc., the corporation that executed the within instrument, and also known to me to be the person who executed it on behalf of said corporation, and acknowledged to me that such corporation executed the within instrument.

IN WITNESS WHEREOF, I have hereunto set my hand and affixed my official seal the day and year in this certificate first above written.

/s/ Xxxx Xxxxxxx
Notary Public

[Notarial Seal]

EXHIBIT A-1

FORM OF CLASS I-A CERTIFICATE

SOLELY FOR U.S. FEDERAL INCOME TAX PURPOSES, THIS CERTIFICATE IS A “REGULAR INTEREST” IN A “REAL ESTATE MORTGAGE INVESTMENT CONDUIT,” AS THOSE TERMS ARE DEFINED, RESPECTIVELY, IN SECTIONS 860G AND 860D OF THE INTERNAL REVENUE CODE OF 1986, AS AMENDED (THE “CODE”).

THE CURRENT PRINCIPAL AMOUNT OF THIS CERTIFICATE WILL BE DECREASED BY THE PRINCIPAL PAYMENTS HEREON AND REALIZED LOSSES ALLOCATED HERETO AND INCREASED TO THE EXTENT OF NET DEFERRED INTEREST ALLOCATED HERETO AS SET FORTH IN THE AGREEMENT. ACCORDINGLY, FOLLOWING THE INITIAL ISSUANCE OF THE CERTIFICATES, THE CURRENT PRINCIPAL AMOUNT OF THIS CERTIFICATE WILL BE DIFFERENT FROM THE DENOMINATION SHOWN BELOW. ANYONE ACQUIRING THIS CERTIFICATE MAY ASCERTAIN ITS CURRENT PRINCIPAL AMOUNT BY INQUIRY OF THE SECURITIES ADMINISTRATOR NAMED HEREIN.

UNLESS THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY TO THE SELLER OR ITS AGENT FOR REGISTRATION OF TRANSFER, EXCHANGE OR PAYMENT, AND ANY CERTIFICATE ISSUED IS REGISTERED IN THE NAME OF CEDE & CO. OR SUCH OTHER NAME AS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY AND ANY PAYMENT IS MADE TO CEDE & CO., ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR OTHERWISE BY OR TO ANY PERSON IS WRONGFUL SINCE THE REGISTERED OWNER HEREOF, CEDE & CO., HAS AN INTEREST HEREIN.

Certificate No. 1	Adjustable Pass-Through Rate

Class I-A Senior

Date of Pooling and Servicing Agreement and Cut-off Date: November 1, 2005	Aggregate Initial Current Principal Amount of this Certificate as of the Cut-off Date: $___________

First Distribution Date: December 25, 2005	Initial Current Principal Amount of this Certificate as of the Cut-off Date: $____________

Master Servicer: Xxxxx Fargo Bank, National Association	CUSIP: _____________
Servicer: MortgageIT, Inc.
Assumed Final Distribution Date: November 25, 2035

MORTGAGEIT TRUST 2005-AR1

MORTGAGE PASS-THROUGH CERTIFICATE

SERIES 2005-AR1

evidencing a fractional undivided interest in the distributions allocable to the Class I-A Certificates with respect to a Trust Fund consisting primarily of a pool of adjustable interest rate mortgage loans secured by first liens on one-to-four family residential properties (the “Mortgage Loans”) and sold by STRUCTURED ASSET MORTGAGE INVESTMENTS II INC.

This Certificate is payable solely from the assets of the Trust Fund, and does not represent an obligation of or interest in Structured Asset Mortgage Investments II Inc. ("XXXX XX"), the Master Servicer, the Securities Administrator, the Servicer or the Trustee referred to below or any of their affiliates or any other person. Neither this Certificate nor the underlying Mortgage Loans are guaranteed or insured by any governmental entity or by XXXX XX, the Master

Servicer or the Trustee or any of their affiliates or any other person. None of XXXX XX, the Master Servicer or any of their affiliates will have any obligation with respect to any certificate or other obligation secured by or payable from payments on the Certificates.

This certifies that Cede & Co. is the registered owner of the Fractional Undivided Interest evidenced hereby in the beneficial ownership interest of Certificates of the same Class as this Certificate in a trust (the “Trust Fund”) primarily consisting of the Mortgage Loans sold by XXXX XX. The Mortgage Loans were sold by MortgageIT, Inc. (“MIT”) to XXXX XX. MIT will act as servicer of the Mortgage Loans (the “Servicer,” which term includes any successors thereto under the Agreement referred to below). The Trust Fund was created pursuant to the Pooling and Servicing Agreement dated as of the Cut-off Date specified above (the “Agreement”), among XXXX XX, as depositor (the “Seller”), the Master Servicer, Xxxxx Fargo, as securities administrator (the "Securities Administrator") MIT and Deutsche Bank National Trust Company, as trustee (the “Trustee”), a summary of certain of the pertinent provisions of which is set forth hereafter. To the extent not defined herein, capitalized terms used herein shall have the meaning ascribed to them in the Agreement. This Certificate is issued under and is subject to the terms, provisions and conditions of the Agreement, to which Agreement the Holder of this Certificate by virtue of its acceptance hereof assents and by which such Holder is bound.

Interest on this Certificate will accrue during the period from and including the preceding Distribution Date (as hereinafter defined) (or in the case of the first Distribution Date, from the Closing Date) to and including the day prior to the current Distribution Date on the Current Principal Amount hereof at a per annum rate equal to the Pass-Through Rate set forth in the Agreement. The Securities Administrator will distribute on the 25th day of each month, or, if such 25th day is not a Business Day, the immediately following Business Day (each, a “Distribution Date”), commencing on the first Distribution Date specified above, to the Person in whose name this Certificate is registered at the close of business on the Business Day immediately preceding the related Distribution Date so long as such Certificate remains in book-entry form (and otherwise, the close of business on the last Business Day of the month immediately preceding the month of such Distribution Date), an amount equal to the product of the Fractional Undivided Interest evidenced by this Certificate and the amount (of interest, if any) required to be distributed to the Holders of Certificates of the same Class as this Certificate. The Assumed Final Distribution Date is the Distribution Date in the month following the latest scheduled maturity date of any Mortgage Loan and is not likely to be the date on which the Current Principal Amount of this Class of Certificates will be reduced to zero.

Distributions on this Certificate will be made by the Securities Administrator by check mailed to the address of the Person entitled thereto as such name and address shall appear on the Certificate Register or, if such Person so requests by notifying the Securities Administrator in writing as specified in the Agreement, by wire transfer. Notwithstanding the above, the final distribution on this Certificate will be made after due notice by the Securities Administrator of the pendency of such distribution and only upon presentation and surrender of this Certificate at the office or agency appointed by the Securities Administrator for that purpose and designated in such notice. The initial Current Principal Amount of this Certificate is set forth above. The Current Principal Amount hereof will be reduced to the extent of distributions allocable to principal hereon and Realized Losses allocated hereto and will be increased to the extent of Net Deferred Interest allocated thereto, in each case, as set forth in the Agreement.

This Certificate is one of a duly authorized issue of Certificates designated as set forth on the face hereof (the “Certificates”). The Certificates, in the aggregate, evidence the entire beneficial ownership interest in the Trust Fund formed pursuant to the Agreement.

The Certificateholder, by its acceptance of this Certificate, agrees that it will look solely to the Trust Fund for payment hereunder and that neither the Securities Administrator nor the Trustee is liable to the Certificateholders for any amount payable under this Certificate or the Agreement or, except as expressly provided in the Agreement, subject to any liability under the Agreement.

This Certificate does not purport to summarize the Agreement and reference is made to the Agreement for the interests, rights and limitations of rights, benefits, obligations and duties evidenced hereby, and the rights, duties and immunities of the Securities Administrator.

The Agreement permits, with certain exceptions therein provided: (i) the amendment thereof and of the Servicing Agreement and the modification of the rights and obligations of the Seller, the Master Servicer, the Securities Administrator and the Trustee and the rights of the Certificateholders under the Agreement from time to time by the Seller, the Master Servicer, the Securities Administrator and the Trustee, and (ii) the amendment thereof and of the Servicing Agreement by the Master Servicer and the Trustee with the consent of the Holders of Certificates, evidencing Fractional Undivided Interests aggregating not less than 51% of the Trust Fund (or in certain cases, Holders of Certificates of affected Classes evidencing such percentage of the Fractional Undivided Interests thereof). Any such consent by the Holder of this Certificate shall be conclusive and binding on such Holder and upon all future Holders of this Certificate and of any Certificate issued upon the transfer hereof or in lieu hereof whether or not notation of such consent is made upon this Certificate. The Agreement also permits the amendment thereof and of the Servicing Agreement in certain limited circumstances, without the consent of the Holders of any of the Certificates.

As provided in the Agreement and subject to certain limitations therein set forth, the transfer of this Certificate is registrable with the Securities Administrator upon surrender of this Certificate for registration of transfer at the offices or agencies maintained by the Securities Administrator for such purposes, duly endorsed by, or accompanied by a written instrument of transfer in form satisfactory to the Securities Administrator duly executed by the Holder hereof or such Holder’s attorney duly authorized in writing, and thereupon one or more new Certificates in authorized denominations representing a like aggregate Fractional Undivided Interest will be issued to the designated transferee.

The Certificates are issuable only as registered Certificates without coupons in the Classes and denominations specified in the Agreement. As provided in the Agreement and subject to certain limitations therein set forth, this Certificate is exchangeable for one or more new Certificates evidencing the same Class and in the same aggregate Fractional Undivided Interest, as requested by the Holder surrendering the same.

No service charge will be made to the Certificateholders for any such registration of transfer, but the Securities Administrator may require payment of a sum sufficient to cover any tax or other governmental charge payable in connection therewith. The Seller, the Master Servicer, the Trustee, the Securities Administrator and any agent of any of them may treat the Person in whose name this Certificate is registered as the owner hereof for all purposes, and none

of the Seller, the Master Servicer, the Trustee, the Securities Administrator or any such agent shall be affected by notice to the contrary.

The obligations created by the Agreement and the Trust Fund created thereby (other than the obligations to make payments to Certificateholders with respect to the termination of the Agreement) shall terminate upon the earlier of (i) the later of (A) the maturity or other liquidation (or Advance with respect thereto) of the last Mortgage Loan remaining in the Trust Fund and disposition of all property acquired upon foreclosure or deed in lieu of foreclosure of any Mortgage Loan and (B) the remittance of all funds due under the Agreement, or (ii) the optional repurchase by the party named in the Agreement of all the Mortgage Loans and other assets of the Trust Fund in accordance with the terms of the Agreement. Such optional repurchase may be made by the Servicer or its designee or the Master Servicer only if (i) the Scheduled Principal Balance of the Mortgage Loans at the time of any such repurchase is less than 10%, in the case of the Servicer, or 1%, in the case of the Master Servicer, of the Cut-off Date Balance or (ii) the Depositor, based upon an Opinion of Counsel addressed to the Depositor and the Trustee has determined that the REMIC status of any REMIC under the Agreement has been lost or that a substantial risk exists that such REMIC status will be lost for the then-current taxable year. The exercise of such right will effect the early retirement of the Certificates. In no event, however, will the Trust Fund created by the Agreement continue beyond the expiration of 21 years after the death of certain persons identified in the Agreement.

Unless this Certificate has been countersigned by an authorized signatory of the Securities Administrator by manual signature, this Certificate shall not be entitled to any benefit under the Agreement, or be valid for any purpose.

IN WITNESS WHEREOF, the Securities Administrator has caused this Certificate to be duly executed.

Dated: November 21, 2005	XXXXX FARGO BANK, NATIONAL ASSOCIATION
	not in its individual capacity but solely as Securities Administrator
	By:
	Authorized Signatory

CERTIFICATE OF AUTHENTICATION

This is one of the Class I-A Certificates referred to in the within-mentioned Agreement.

XXXXX FARGO BANK, NATIONAL ASSOCIATION
Authorized signatory of Xxxxx Fargo Bank, National Association, not in its individual capacity but solely as Securities Administrator

By:

Authorized Signatory

ASSIGNMENT

FOR VALUE RECEIVED, the undersigned hereby sell(s), assign(s) and transfer(s) unto __________________________________ (Please print or typewrite name and address including postal zip code of assignee) a Fractional Undivided Interest evidenced by the within Mortgage Pass-Through Certificate and hereby authorizes the transfer of registration of such interest to assignee on the Certificate Register of the Trust Fund.

I (We) further direct the Certificate Registrar to issue a new Certificate of a like denomination and Class, to the above named assignee and deliver such Certificate to the following address:

Dated:

Signature by or on behalf of assignor

Signature Guaranteed

DISTRIBUTION INSTRUCTIONS

The assignee should include the following for purposes of distribution:

Distributions shall be made, by wire transfer or otherwise, in immediately available funds to _________________________________ for the account of _________________________ account number _____________, or, if mailed by check, to ______________________________. Applicable statements should be mailed to _____________________________________________.

This information is provided by __________________, the assignee named above, or ________________________, as its agent.

EXHIBIT A-2

FORM OF CLASS I-X CERTIFICATE

THE CURRENT PRINCIPAL AMOUNT OF THIS CERTIFICATE WILL BE DECREASED BY THE PRINCIPAL PAYMENTS HEREON AND REALIZED LOSSES ALLOCATED HERETO AND INCREASED TO THE EXTENT OF NET DEFERRED INTEREST ALLOCATED HERETO AS SET FORTH IN THE AGREEMENT. ACCORDINGLY, FOLLOWING THE INITIAL ISSUANCE OF THE CERTIFICATES, THE NOTIONAL AMOUNT AND CURRENT PRINCIPAL AMOUNT OF THIS CERTIFICATE WILL BE DIFFERENT FROM THE DENOMINATION SHOWN BELOW. ANYONE ACQUIRING THIS CERTIFICATE MAY ASCERTAIN ITS NOTIONAL AMOUNT AND CURRENT PRINCIPAL AMOUNT BY INQUIRY OF THE SECURITIES ADMINISTRATOR NAMED HEREIN.

EACH BENEFICIAL OWNER OF A CLASS I-X CERTIFICATE OR ANY INTEREST THEREIN SHALL BE DEEMED TO HAVE REPRESENTED, BY VIRTUE OF ITS ACQUISITION OR HOLDING OF THAT CERTIFICATE OR INTEREST THEREIN, THAT EITHER (I) SUCH CERTIFICATE IS RATED AT LEAST "BBB-" OR ITS EQUIVALENT BY FITCH, S&P AND MOODY'S, (II) IT IS NOT A PLAN OR INVESTING WITH “PLAN ASSETS”?OF ANY PLAN, (III) (1) IT IS AN INSURANCE COMPANY, (2) THE SOURCE OF FUNDS USED TO ACQUIRE OR HOLD THE CERTIFICATE OR INTEREST THEREIN IS AN "INSURANCE COMPANY GENERAL ACCOUNT," AS SUCH TERM IS DEFINED IN PROHIBITED TRANSACTION CLASS EXEMPTION (“PTCE”) 95-60, AND (3) THE CONDITIONS IN SECTIONS I AND III OF PTCE 95-60 HAVE BEEN SATISFIED.

Certificate No.1	Adjustable Pass-Through Rate

Class I-X Senior	Aggregate Initial Notional Amount of the Certificates as of the Cut-off Date: $__________

Date of Pooling and Servicing Agreement and Cut-off Date: November 1, 2005	Initial Notional Amount of the Certificates as of the Cut-off Date: $__________

First Distribution Date: December 25, 2005	Initial Current Principal Amount of this Certificate as of the Cut-off Date: $0

Master Servicer: Xxxxx Fargo Bank, National Association	CUSIP: ___________
Servicer: MortgageIT, Inc.
Assumed Final Distribution Date: November 25, 2035

MORTGAGEIT TRUST 2005-AR1

MORTGAGE PASS-THROUGH CERTIFICATE

SERIES 2005-AR1

evidencing a fractional undivided interest in the distributions allocable to the Class I-X Certificates with respect to a Trust Fund consisting primarily of a pool of adjustable interest rate mortgage loans secured by first liens on one-to-four family residential properties (the “Mortgage Loans”) and sold by STRUCTURED ASSET MORTGAGE INVESTMENTS II INC.

This Certificate is payable solely from the assets of the Trust Fund, and does not represent an obligation of or interest in Structured Asset Mortgage Investments II Inc. ("XXXX

XX"), the Master Servicer, the Securities Administrator, the Servicer or the Trustee referred to below or any of their affiliates or any other person. Neither this Certificate nor the underlying Mortgage Loans are guaranteed or insured by any governmental entity or by XXXX XX, the Master Servicer or the Trustee or any of their affiliates or any other person. None of XXXX XX, the Master Servicer or any of their affiliates will have any obligation with respect to any certificate or other obligation secured by or payable from payments on the Certificates.

This certifies that Cede & Co. is the registered owner of the Fractional Undivided Interest evidenced hereby in the beneficial ownership interest of Certificates of the same Class as this Certificate in a trust (the “Trust Fund”) primarily consisting of the Mortgage Loans sold by XXXX XX. The Mortgage Loans were sold by MortgageIT, Inc. (“MIT”) to XXXX XX. MIT will act as servicer of the Mortgage Loans (the “Servicer,” which term includes any successors thereto under the Agreement referred to below). The Trust Fund was created pursuant to the Pooling and Servicing Agreement dated as of the Cut-off Date specified above (the “Agreement”), among XXXX XX, as depositor (the “Seller”), the Master Servicer, Xxxxx Fargo, as securities administrator (the "Securities Administrator"), MIT and Deutsche Bank National Trust Company, as trustee (the “Trustee”), a summary of certain of the pertinent provisions of which is set forth hereafter. To the extent not defined herein, capitalized terms used herein shall have the meaning ascribed to them in the Agreement. This Certificate is issued under and is subject to the terms, provisions and conditions of the Agreement, to which Agreement the Holder of this Certificate by virtue of its acceptance hereof assents and by which such Holder is bound.

Interest on this Certificate will accrue during the period from and including the preceding Distribution Date (as hereinafter defined) (or in the case of the first Distribution Date, from the Closing Date) to and including the day prior to the current Distribution Date on the Current Principal Amount hereof at a per annum rate equal to the Pass-Through Rate set forth in the Agreement. The Securities Administrator will distribute on the 25th day of each month, or, if such 25th day is not a Business Day, the immediately following Business Day (each, a “Distribution Date”), commencing on the first Distribution Date specified above, to the Person in whose name this Certificate is registered at the close of business on the Business Day immediately preceding the related Distribution Date so long as such Certificate remains in book-entry form (and otherwise, the close of business on the last Business Day of the month immediately preceding the month of such Distribution Date), an amount equal to the product of the Fractional Undivided Interest evidenced by this Certificate and the amount required to be distributed to the Holders of Certificates of the same Class as this Certificate. The Assumed Final Distribution Date is the Distribution Date in the month following the latest scheduled maturity date of any Mortgage Loan and is not likely to be the date on which the Notional Amount or Current Principal Amount of this Class of Certificates will be reduced to zero.

Distributions on this Certificate will be made by the Securities Administrator by check mailed to the address of the Person entitled thereto as such name and address shall appear on the Certificate Register or, if such Person so requests by notifying the Securities Administrator in writing as specified in the Agreement, by wire transfer. Notwithstanding the above, the final distribution on this Certificate will be made after due notice by the Securities Administrator of the pendency of such distribution and only upon presentation and surrender of this Certificate at the office or agency appointed by the Securities Administrator for that purpose and designated in such notice. Each of the initial Notional Amount of this Certificate and the Current Principal Amount of this Certificate is set forth above. The Current Principal Amount of

this Certificate will be reduced to the extent of distributions allocable to principal hereon and any Realized Losses allocable hereto. In the event that interest accrued on the Notional Amount of this Certificate is reduced as a result of the allocation of Net Deferred Interest on the related Mortgage Loans, as described in the Agreement, the Current Principal Amount of this Certificate will increase by the amount of such reduction.

Each beneficial owner of a Class I-X Certificate or any interest therein shall be deemed to have represented, by virtue of its acquisition or holding of that Certificate or interest therein, that either (i) such Certificate is rated at least "BBB-" or its equivalent by Fitch, S&P and Xxxxx'x, (ii) it is not a Plan or investing with "plan assets" of any Plan ,(iii)(1) it is an insurance company, (2) the source of funds used to acquire or hold the Certificate or interest therein is an “insurance company general account,” as such term is defined in Prohibited Transaction Class Exemption (“PTCE”) 95-60, and (3) the conditions in Sections I and III of PTCE 95-60 have been satisfied.

The Agreement permits, with certain exceptions therein provided: (i) the amendment thereof and of the Servicing Agreement and the modification of the rights and obligations of the Seller, the Master Servicer, the Securities Administrator and the Trustee and the rights of the Certificateholders under the Agreement from time to time by MIT, the Seller, the Master Servicer, the Securities Administrator and the Trustee, and (ii) the amendment thereof and of the Servicing Agreement by the Master Servicer and the Trustee with the consent of the Holders of Certificates, evidencing Fractional Undivided Interests aggregating not less than 51% of the Trust Fund (or in certain cases, Holders of Certificates of affected Classes evidencing such percentage of the Fractional Undivided Interests thereof). Any such consent by the Holder of this Certificate shall be conclusive and binding on such Holder and upon all future Holders of this Certificate and of any Certificate issued upon the transfer hereof or in lieu hereof whether or not notation of such consent is made upon this Certificate. The Agreement also permits the amendment thereof and of the Servicing Agreement in certain limited circumstances, without the consent of the Holders of any of the Certificates.

transfer in form satisfactory to the Securities Administrator duly executed by the Holder hereof or such Holder’s attorney duly authorized in writing, and thereupon one or more new Certificates in authorized denominations representing a like aggregate Fractional Undivided Interest will be issued to the designated transferee.

The obligations created by the Agreement and the Trust Fund created thereby (other than the obligations to make payments to Certificateholders with respect to the termination of the Agreement) shall terminate upon the earlier of (i) the later of (A) the maturity or other liquidation (or Advance with respect thereto) of the last Mortgage Loan remaining in the Trust Fund and disposition of all property acquired upon foreclosure or deed in lieu of foreclosure of any Mortgage Loan and (B) the remittance of all funds due under the Agreement, or (ii) the optional repurchase by the party named in the Agreement of all the Mortgage Loans and other assets of the Trust Fund in accordance with the terms of the Agreement. Such optional repurchase may be made only if (i) the Scheduled Principal Balance of the Mortgage Loans at the time of any such repurchase is less than 10%, in the case of the Servicer, or 1%, in the case of the Master Servicer, of the Cut-off Date Balance or (ii) the Depositor, based upon an Opinion of Counsel addressed to the Depositor and the Trustee has determined that the REMIC status of any REMIC under the Agreement has been lost or that a substantial risk exists that such REMIC status will be lost for the then-current taxable year. The exercise of such right will effect the early retirement of the Certificates. In no event, however, will the Trust Fund created by the Agreement continue beyond the expiration of 21 years after the death of certain persons identified in the Agreement.

IN WITNESS WHEREOF, the Securities Administrator has caused this Certificate to be duly executed.

Dated: November 21, 2005	XXXXX FARGO BANK, NATIONAL ASSOCIATION
	Not in its individual capacity but solely as Securities Administrator
	By:
	Authorized Signatory

CERTIFICATE OF AUTHENTICATION

This is one of the Class I-X-1 Certificates referred to in the within-mentioned Agreement.

XXXXX FARGO BANK, NATIONAL ASSOCIATION

Authorized signatory of Xxxxx Fargo Bank, National Association, not in its individual capacity but solely as Securities Administrator

By:

Authorized Signatory

ASSIGNMENT

I (We) further direct the Certificate Registrar to issue a new Certificate of a like denomination and Class, to the above named assignee and deliver such Certificate to the following address:

Dated:

Signature by or on behalf of assignor

Signature Guaranteed

DISTRIBUTION INSTRUCTIONS

The assignee should include the following for purposes of distribution:

This information is provided by __________________, the assignee named above, or ________________________, as its agent.

EXHIBIT A-3

FORM OF CLASS I-M-X CERTIFICATE

THIS CERTIFICATE IS SUBORDINATED IN RIGHT OF PAYMENT TO THE CLASS A CERTIFICATES AND THE CLASS I-X-1 CERTIFICATES AS DESCRIBED IN THE AGREEMENT (AS DEFINED BELOW).

THE CURRENT PRINCIPAL AMOUNT OF THIS CERTIFICATE WILL BE DECREASED BY THE PRINCIPAL PAYMENTS HEREON AND REALIZED LOSSES ALLOCATED HERETO AND INCREASED TO THE EXTENT OF NET DEFERRED INTEREST ALLOCATED HERETO AS SET FORTH IN THE AGREEMENT. ACCORDINGLY, FOLLOWING THE INITIAL ISSUANCE OF THE CERTIFICATES, THE NOTIONAL AMOUNT AND THE CURRENT PRINCIPAL AMOUNT OF THIS CERTIFICATE WILL BE DIFFERENT FROM THE DENOMINATION SHOWN BELOW. ANYONE ACQUIRING THIS CERTIFICATE MAY ASCERTAIN ITS NOTIONAL AMOUNT AND CURRENT PRINCIPAL AMOUNT BY INQUIRY OF THE SECURITIES ADMINISTRATOR NAMED HEREIN.

EACH BENEFICIAL OWNER OF A CLASS I-M-X CERTIFICATE OR ANY INTEREST THEREIN SHALL BE DEEMED TO HAVE REPRESENTED, BY VIRTUE OF ITS ACQUISITION OR HOLDING OF THAT CERTIFICATE OR INTEREST THEREIN, THAT EITHER (I) SUCH CERTIFICATE IS RATED AT LEAST "BBB-" OR ITS EQUIVALENT BY FITCH, S&P AND XXXXX'X, (II) IT IS NOT A PLAN OR INVESTING WITH “PLAN ASSETS”? OF ANY PLAN, (III) (1) IT IS AN INSURANCE COMPANY, (2) THE SOURCE OF FUNDS USED TO ACQUIRE OR HOLD THE CERTIFICATE OR INTEREST THEREIN IS AN "INSURANCE COMPANY GENERAL ACCOUNT," AS SUCH TERM IS DEFINED IN PROHIBITED TRANSACTION CLASS EXEMPTION (“PTCE”) 95-60, AND (3) THE CONDITIONS IN SECTIONS I AND III OF PTCE 95-60 HAVE BEEN SATISFIED.

Certificate No.1	Adjustable Pass-Through Rate

Class I-M-X Subordinate	Aggregate Initial Notional Amount of the Certificates as of the Cut-off Date: $__________

Date of Pooling and Servicing Agreement and Cut-off Date: November 1, 2005	Initial Notional Amount of the Certificates as of the Cut-off Date: $__________

First Distribution Date: December 25, 2005	Initial Current Principal Amount of this Certificate as of the Cut-off Date: $0

Master Servicer: Xxxxx Fargo Bank, National Association	CUSIP: ___________
Servicer: MortgageIT, Inc.
Assumed Final Distribution Date: November 25, 2035

MORTGAGEIT TRUST 2005-AR1

MORTGAGE PASS-THROUGH CERTIFICATE

SERIES 2005-AR1

evidencing a fractional undivided interest in the distributions allocable to the Class I-M-X Certificates with respect to a Trust Fund consisting primarily of a pool of adjustable interest rate mortgage loans secured by first liens on one-to-four family residential properties (the “Mortgage Loans”) and sold by STRUCTURED ASSET MORTGAGE INVESTMENTS II INC.

This Certificate is payable solely from the assets of the Trust Fund, and does not represent an obligation of or interest in Structured Asset Mortgage Investments II Inc. ("XXXX

This certifies that Cede & Co. is the registered owner of the Fractional Undivided Interest evidenced hereby in the beneficial ownership interest of Certificates of the same Class as this Certificate in a trust (the “Trust Fund”) primarily consisting of the Mortgage Loans sold by XXXX XX. The Mortgage Loans were sold by MortgageIT, Inc. (“MIT”) to XXXX XX. MIT will act as servicer of the Mortgage Loans (the “Servicer,” which term includes any successors thereto under the Agreement referred to below). The Trust Fund was created pursuant to the Pooling and Servicing Agreement dated as of the Cut-off Date specified above (the “Agreement”), among XXXX XX, as depositor (the “Seller”), the Master Servicer, Xxxxx Fargo, as securities administrator (the "Securities Administrator"), MIT and Deutsche Bank National Trust Company, as trustee (the “Trustee”), a summary of certain of the pertinent provisions of which is set forth hereafter. To the extent not defined herein, capitalized terms used herein shall have the meaning ascribed to them in the Agreement. This Certificate is issued under and is subject to the terms, provisions and conditions of the Agreement, to which Agreement the Holder of this Certificate by virtue of its acceptance hereof assents and by which such Holder is bound.

Interest on this Certificate will accrue during the period from and including the preceding Distribution Date (as hereinafter defined) (or in the case of the first Distribution Date, from the Closing Date) to and including the day prior to the current Distribution Date on the Current Principal Amount hereof at a per annum rate equal to the Pass-Through Rate set forth in the Agreement. The Securities Administrator will distribute on the 25th day of each month, or, if such 25th day is not a Business Day, the immediately following Business Day (each, a “Distribution Date”), commencing on the first Distribution Date specified above, to the Person in whose name this Certificate is registered at the close of business on the Business Day immediately preceding the related Distribution Date so long as such Certificate remains in book-entry form (and otherwise, the close of business on the last Business Day of the month immediately preceding the month of such Distribution Date), an amount equal to the product of the Fractional Undivided Interest evidenced by this Certificate and the amount required to be distributed to the Holders of Certificates of the same Class as this Certificate. The Assumed Final Distribution Date is the Distribution Date in the month following the latest scheduled maturity date of any Mortgage Loan and is not likely to be the date on which the Notional Amount or Current Principal Amount of this Class of Certificates will be reduced to zero.

Distributions on this Certificate will be made by the Securities Administrator by check mailed to the address of the Person entitled thereto as such name and address shall appear on the Certificate Register or, if such Person so requests by notifying the Securities Administrator in writing as specified in the Agreement, by wire transfer. Notwithstanding the above, the final distribution on this Certificate will be made after due notice by the Securities Administrator of the pendency of such distribution and only upon presentation and surrender of this Certificate at the office or agency appointed by the Securities Administrator for that purpose and designated in such notice. Each of the initial Notional Amount of this Certificate and the Current Principal Amount of this Certificate is set forth above. The Current Principal Amount of

Each beneficial owner of a Class I-M-X Certificate or any interest therein shall be deemed to have represented, by virtue of its acquisition or holding of that Certificate or interest therein, that either (i) such Certificate is rated at least "BBB-" or its equivalent by Fitch, S&P and Xxxxx'x, (ii) it is not a Plan or investing with "plan assets" of any Plan ,(iii)(1) it is an insurance company, (2) the source of funds used to acquire or hold the Certificate or interest therein is an “insurance company general account,” as such term is defined in Prohibited Transaction Class Exemption (“PTCE”) 95-60, and (3) the conditions in Sections I and III of PTCE 95-60 have been satisfied.

The Agreement permits, with certain exceptions therein provided: (i) the amendment thereof and of the Servicing Agreement and the modification of the rights and obligations of the Seller, the Master Servicer, the Securities Administrator and the Trustee and the rights of the Certificateholders under the Agreement from time to time by MIT, the Seller, the Master Servicer, the Securities Administrator and the Trustee, and (ii) the amendment thereof and of the Servicing Agreement by the Master Servicer and the Trustee with the consent of the Holders of Certificates, evidencing Fractional Undivided Interests aggregating not less than 51% of the Trust Fund (or in certain cases, Holders of Certificates of affected Classes evidencing such percentage of the Fractional Undivided Interests thereof). Any such consent by the Holder of this Certificate shall be conclusive and binding on such Holder and upon all future Holders of this Certificate and of any Certificate issued upon the transfer hereof or in lieu hereof whether or not notation of such consent is made upon this Certificate. The Agreement also permits the amendment thereof and of the Servicing Agreement in certain limited circumstances, without the consent of the Holders of any of the Certificates.

The obligations created by the Agreement and the Trust Fund created thereby (other than the obligations to make payments to Certificateholders with respect to the termination of the Agreement) shall terminate upon the earlier of (i) the later of (A) the maturity or other liquidation (or Advance with respect thereto) of the last Mortgage Loan remaining in the Trust Fund and disposition of all property acquired upon foreclosure or deed in lieu of foreclosure of any Mortgage Loan and (B) the remittance of all funds due under the Agreement, or (ii) the optional repurchase by the party named in the Agreement of all the Mortgage Loans and other assets of the Trust Fund in accordance with the terms of the Agreement. Such optional repurchase may be made only if (i) the Scheduled Principal Balance of the Mortgage Loans at the time of any such repurchase is less than 10%, in the case of the Servicer, or 1%, in the case of the Master Servicer, of the Cut-off Date Balance or (ii) the Depositor, based upon an Opinion of Counsel addressed to the Depositor and the Trustee has determined that the REMIC status of any REMIC under the Agreement has been lost or that a substantial risk exists that such REMIC status will be lost for the then-current taxable year. The exercise of such right will effect the early retirement of the Certificates. In no event, however, will the Trust Fund created by the Agreement continue beyond the expiration of 21 years after the death of certain persons identified in the Agreement.

IN WITNESS WHEREOF, the Securities Administrator has caused this Certificate to be duly executed.

Dated: November 21, 2005	XXXXX FARGO BANK, NATIONAL ASSOCIATION
	not in its individual capacity but solely as Securities Administrator
	By:
	Authorized Signatory

CERTIFICATE OF AUTHENTICATION

This is one of the Class I-M-X Certificates referred to in the within-mentioned Agreement.

XXXXX FARGO BANK, NATIONAL ASSOCIATION

Authorized signatory of Xxxxx Fargo Bank, National Association, not in its individual capacity but solely as Securities Administrator

By:

Authorized Signatory

ASSIGNMENT

I (We) further direct the Certificate Registrar to issue a new Certificate of a like denomination and Class, to the above named assignee and deliver such Certificate to the following address:

Dated:

Signature by or on behalf of assignor

Signature Guaranteed

DISTRIBUTION INSTRUCTIONS

The assignee should include the following for purposes of distribution:

This information is provided by __________________, the assignee named above, or ________________________, as its agent.

EXHIBIT A-4

FORM OF CLASS I-B-[1][2][3] CERTIFICATE

THIS CERTIFICATE IS SUBORDINATED IN RIGHT OF PAYMENT TO THE CLASS I-A, THE CLASS I-X-1 AND THE CLASS I-M-X CERTIFICATES AS DESCRIBED IN THE AGREEMENT (AS DEFINED BELOW).

EACH BENEFICIAL OWNER OF A CLASS I-B-[1][2][3] CERTIFICATE OR ANY INTEREST THEREIN SHALL BE DEEMED TO HAVE REPRESENTED, BY VIRTUE OF ITS ACQUISITION OR HOLDING OF THAT CERTIFICATE OR INTEREST THEREIN, THAT EITHER (I) SUCH CERTIFICATE IS RATED AT LEAST "BBB-" OR ITS EQUIVALENT BY FITCH, S&P AND XXXXX'X, (II) IT IS NOT A PLAN OR INVESTING WITH “PLAN ASSETS”? OF ANY PLAN, (III) (1) IT IS AN INSURANCE COMPANY, (2) THE SOURCE OF FUNDS USED TO ACQUIRE OR HOLD THE CERTIFICATE OR INTEREST THEREIN IS AN "INSURANCE COMPANY GENERAL ACCOUNT," AS SUCH TERM IS DEFINED IN PROHIBITED TRANSACTION CLASS EXEMPTION (“PTCE”) 95-60, AND (3) THE CONDITIONS IN SECTIONS I AND III OF PTCE 95-60 HAVE BEEN SATISFIED.

Certificate No.1	Adjustable Pass-Through Rate

Class I-B-[1][2][3] Subordinate

Date of Pooling and Servicing Agreement and Cut-off Date: November 1, 2005	Aggregate Initial Current Principal Amount of this Certificate as of the Cut-off Date: $______________

First Distribution Date: December 25, 2005	Initial Current Principal Amount of this Certificate as of the Cut-off Date: $_____________

Master Servicer: Xxxxx Fargo Bank, National Association	CUSIP: ___________
Servicer: MortgageIT, Inc.
Assumed Final Distribution Date: November 25, 2035

MORTGAGEIT TRUST 2005-AR1

MORTGAGE PASS-THROUGH CERTIFICATE

SERIES 2005-AR1

evidencing a fractional undivided interest in the distributions allocable to the Class I-B-[1][2][3] Certificates with respect to a Trust Fund consisting primarily of a pool of adjustable interest rate mortgage loans secured by first liens on one-to-four family residential properties (the “Mortgage Loans”) and sold by STRUCTURED ASSET MORTGAGE INVESTMENTS II INC.

below or any of their affiliates or any other person. Neither this Certificate nor the underlying Mortgage Loans are guaranteed or insured by any governmental entity or by XXXX XX, the Master Servicer or the Trustee or any of their affiliates or any other person. None of XXXX XX, the Master Servicer or any of their affiliates will have any obligation with respect to any certificate or other obligation secured by or payable from payments on the Certificates.

This certifies that Cede & Co. is the registered owner of the Fractional Undivided Interest evidenced hereby in the beneficial ownership interest of Certificates of the same Class as this Certificate in a trust (the “Trust Fund”) primarily consisting of the Mortgage Loans sold by XXXX XX. The Mortgage Loans were sold by MortgageIT, Inc. (“MIT”) to XXXX XX. MIT will act as servicer of the Mortgage Loans (the “Servicer,” which term includes any successors thereto under the Agreement referred to below). The Trust Fund was created pursuant to the Pooling and Servicing Agreement dated as of the Cut-off Date specified above (the “Agreement”), among XXXX XX, as depositor (the “Seller”), the Master Servicer, Xxxxx Fargo, as securities administrator (the "Securities Administrator"), MIT and Deutsche Bank National Trust Company, as trustee (the “Trustee”), a summary of certain of the pertinent provisions of which is set forth hereafter. To the extent not defined herein, capitalized terms used herein shall have the meaning ascribed to them in the Agreement. This Certificate is issued under and is subject to the terms, provisions and conditions of the Agreement, to which Agreement the Holder of this Certificate by virtue of its acceptance hereof assents and by which such Holder is bound.

Interest on this Certificate will accrue during the period from and including the preceding Distribution Date (as hereinafter defined) (or in the case of the first Distribution Date, from the Closing Date) to and including the day prior to the current Distribution Date on the Current Principal Amount hereof at a per annum rate equal to the Pass-Through Rate set forth in the Agreement. The Securities Administrator will distribute on the 25th day of each month, or, if such 25th day is not a Business Day, the immediately following Business Day (each, a “Distribution Date”), commencing on the first Distribution Date specified above, to the Person in whose name this Certificate is registered at the close of business on the Business Day immediately preceding the related Distribution Date so long as such Certificate remains in book-entry form (and otherwise, the close of business on the last Business Day of the month immediately preceding the month of such Distribution Date), an amount equal to the product of the Fractional Undivided Interest evidenced by this Certificate and the amount required to be distributed to the Holders of Certificates of the same Class as this Certificate. The Assumed Final Distribution Date is the Distribution Date in the month following the latest scheduled maturity date of any Mortgage Loan and is not likely to be the date on which the Current Principal Amount of this Class of Certificates will be reduced to zero.

Distributions on this Certificate will be made by the Securities Administrator by check mailed to the address of the Person entitled thereto as such name and address shall appear on the Certificate Register or, if such Person so requests by notifying the Securities Administrator in writing as specified in the Agreement, by wire transfer. Notwithstanding the above, the final distribution on this Certificate will be made after due notice by the Securities Administrator of the pendency of such distribution and only upon presentation and surrender of this Certificate at the office or agency appointed by the Securities Administrator for that purpose and designated in such notice. The initial Current Principal Amount of this Certificate is set forth above. The Current Principal Amount hereof will be reduced to the extent of distributions allocable to principal hereon and any Realized Losses allocable hereto and Realized Losses

allocated hereto and will be increased to the extent of Net Deferred Interest allocated thereto, in each case, as set forth in the Agreement.

Each beneficial owner of a Class I-B-[1][2][3] Certificate or any interest therein shall be deemed to have represented, by virtue of its acquisition or holding of that Certificate or interest therein, that either (i) such Certificate is rated at least "BBB-" or its equivalent by Fitch, S&P and Xxxxx'x, (ii) it is not a Plan or investing with "plan assets" of any Plan ,(iii)(1) it is an insurance company, (2) the source of funds used to acquire or hold the Certificate or interest therein is an “insurance company general account,” as such term is defined in Prohibited Transaction Class Exemption (“PTCE”) 95-60, and (3) the conditions in Sections I and III of PTCE 95-60 have been satisfied.

The Agreement permits, with certain exceptions therein provided: (i) the amendment thereof and of the Servicing Agreement and the modification of the rights and obligations of the Seller, the Master Servicer, the Securities Administrator and the Trustee and the rights of the Certificateholders under the Agreement from time to time by MIT, the Seller, the Master Servicer, the Securities Administrator and the Trustee, and (ii) the amendment thereof and of the Servicing Agreement by the Master Servicer and the Trustee with the consent of the Holders of Certificates, evidencing Fractional Undivided Interests aggregating not less than 51% of the Trust Fund (or in certain cases, Holders of Certificates of affected Classes evidencing such percentage of the Fractional Undivided Interests thereof). Any such consent by the Holder of this Certificate shall be conclusive and binding on such Holder and upon all future Holders of this Certificate and of any Certificate issued upon the transfer hereof or in lieu hereof whether or not notation of such consent is made upon this Certificate. The Agreement also permits the amendment thereof and of the Servicing Agreement in certain limited circumstances, without the consent of the Holders of any of the Certificates.

in authorized denominations representing a like aggregate Fractional Undivided Interest will be issued to the designated transferee.

The obligations created by the Agreement and the Trust Fund created thereby (other than the obligations to make payments to Certificateholders with respect to the termination of the Agreement) shall terminate upon the earlier of (i) the later of (A) the maturity or other liquidation (or Advance with respect thereto) of the last Mortgage Loan remaining in the Trust Fund and disposition of all property acquired upon foreclosure or deed in lieu of foreclosure of any Mortgage Loan and (B) the remittance of all funds due under the Agreement, or (ii) the optional repurchase by the party named in the Agreement of all the Mortgage Loans and other assets of the Trust Fund in accordance with the terms of the Agreement. Such optional repurchase may be made only if (i) the Scheduled Principal Balance of the Mortgage Loans at the time of any such repurchase is less than 10%, in the case of the Servicer, or 1%, in the case of the Master Servicer, of the Cut-off Date Balance or (ii) the Depositor, based upon an Opinion of Counsel addressed to the Depositor and the Trustee has determined that the REMIC status of any REMIC under the Agreement has been lost or that a substantial risk exists that such REMIC status will be lost for the then-current taxable year. The exercise of such right will effect the early retirement of the Certificates. In no event, however, will the Trust Fund created by the Agreement continue beyond the expiration of 21 years after the death of certain persons identified in the Agreement.

IN WITNESS WHEREOF, the Securities Administrator has caused this Certificate to be duly executed.

Dated: November 21, 2005	XXXXX FARGO BANK, NATIONAL ASSOCIATION
	not in its individual capacity but solely as Securities Administrator
	By:
	Authorized Signatory

CERTIFICATE OF AUTHENTICATION

This is one of the Class I-B-[1][2][3] Certificates referred to in the within-mentioned Agreement.

XXXXX FARGO BANK, NATIONAL ASSOCIATION

Authorized signatory of Xxxxx Fargo Bank, National Association, not in its individual capacity but solely as Securities Administrator

By:

Authorized Signatory

ASSIGNMENT

I (We) further direct the Certificate Registrar to issue a new Certificate of a like denomination and Class, to the above named assignee and deliver such Certificate to the following address:

Dated:

Signature by or on behalf of assignor

Signature Guaranteed

DISTRIBUTION INSTRUCTIONS

The assignee should include the following for purposes of distribution:

This information is provided by __________________, the assignee named above, or ________________________, as its agent.

EXHIBIT A-5

FORM OF CLASS R CERTIFICATE

THIS CERTIFICATE MAY NOT BE HELD BY OR TRANSFERRED TO A NON-UNITED STATES PERSON OR A DISQUALIFIED ORGANIZATION (AS DEFINED BELOW).

SOLELY FOR U.S. FEDERAL INCOME TAX PURPOSES, THIS CERTIFICATE IS A “RESIDUAL INTEREST” IN A “REAL ESTATE MORTGAGE INVESTMENT CONDUIT” AS THOSE TERMS ARE DEFINED, RESPECTIVELY, IN SECTIONS 860G AND 860D OF THE INTERNAL REVENUE CODE OF 1986, AS AMENDED (THE “CODE”).

THIS CERTIFICATE HAS NOT BEEN AND WILL NOT BE REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE “SECURITIES ACT”), OR UNDER ANY STATE SECURITIES LAWS. THE HOLDER HEREOF, BY PURCHASING THIS CERTIFICATE, AGREES THAT THIS CERTIFICATE MAY BE REOFFERED, RESOLD, PLEDGED OR OTHERWISE TRANSFERRED ONLY IN COMPLIANCE WITH THE SECURITIES ACT AND OTHER APPLICABLE LAWS AND ONLY (1) PURSUANT TO RULE 144A UNDER THE SECURITIES ACT (“RULE 144A”) TO A PERSON THAT THE HOLDER REASONABLY BELIEVES IS A QUALIFIED INSTITUTIONAL BUYER WITHIN THE MEANING OF RULE 144A (A “QIB”), PURCHASING FOR ITS OWN ACCOUNT OR A QIB PURCHASING FOR THE ACCOUNT OF A QIB, WHOM THE HOLDER HAS INFORMED, IN EACH CASE, THAT THE REOFFER, RESALE, PLEDGE OR OTHER TRANSFER IS BEING MADE IN RELIANCE ON RULE 144A OR (2) IN CERTIFICATED FORM TO AN “INSTITUTIONAL ACCREDITED INVESTOR” WITHIN THE MEANING THEREOF IN RULE 501(a)(1), (2), (3) or (7) OF REGULATION D UNDER THE ACT OR ANY ENTITY IN WHICH ALL OF THE EQUITY OWNERS COME WITHIN SUCH PARAGRAPHS PURCHASING NOT FOR DISTRIBUTION IN VIOLATION OF THE SECURITIES ACT, SUBJECT TO (A) THE RECEIPT BY THE TRUSTEE OF A LETTER SUBSTANTIALLY IN THE FORM PROVIDED IN THE AGREEMENT AND (B) THE RECEIPT BY THE TRUSTEE OF SUCH OTHER EVIDENCE ACCEPTABLE TO THE TRUSTEE THAT SUCH REOFFER, RESALE, PLEDGE OR TRANSFER IS IN COMPLIANCE WITH THE SECURITIES ACT AND OTHER APPLICABLE LAWS OR IN EACH CASE IN ACCORDANCE WITH ALL APPLICABLE SECURITIES LAWS OF THE UNITED STATES AND ANY OTHER APPLICABLE JURISDICTION.

OPINION OF COUNSEL FOR THE BENEFIT OF THE TRUSTEE AND THE SERVICER AND ON WHICH THEY MAY RELY WHICH IS SATISFACTORY TO THE TRUSTEE THAT THE PURCHASE OF THIS CERTIFICATE IS PERMISSIBLE UNDER APPLICABLE LAW, WILL NOT CONSTITUTE OR RESULT IN A NON-EXEMPT PROHIBITED TRANSACTION UNDER SECTION 406 OF THE EMPLOYEE RETIREMENT INCOME SECURITY ACT OF 1974, AS AMENDED, OR SECTION 4975 OF THE CODE AND WILL NOT SUBJECT THE SERVICER OR THE TRUSTEE TO ANY OBLIGATION OR LIABILITY IN ADDITION TO THOSE UNDERTAKEN IN THE AGREEMENT.

ANY RESALE, TRANSFER OR OTHER DISPOSITION OF THIS CERTIFICATE MAY BE MADE ONLY IF THE PROPOSED TRANSFEREE PROVIDES A TRANSFER AFFIDAVIT TO THE SERVICER AND THE TRUSTEE THAT (1) SUCH TRANSFEREE IS NOT (A) THE UNITED STATES, ANY STATE OR POLITICAL SUBDIVISION THEREOF, ANY POSSESSION OF THE UNITED STATES, OR ANY AGENCY OR INSTRUMENTALITY OF ANY OF THE FOREGOING (OTHER THAN AN INSTRUMENTALITY WHICH IS A CORPORATION IF ALL OF ITS ACTIVITIES ARE SUBJECT TO TAX AND EXCEPT FOR XXXXXXX MAC, A MAJORITY OF ITS BOARD OF DIRECTORS IS NOT SELECTED BY SUCH GOVERNMENTAL UNIT), (B) A FOREIGN GOVERNMENT, ANY INTERNATIONAL ORGANIZATION, OR ANY AGENCY OR INSTRUMENTALITY OF EITHER OF THE FOREGOING, (C) ANY ORGANIZATION (OTHER THAN CERTAIN FARMERS’ COOPERATIVES DESCRIBED IN SECTION 521 OF THE CODE) WHICH IS EXEMPT FROM THE TAX IMPOSED BY CHAPTER 1 OF THE CODE UNLESS SUCH ORGANIZATION IS SUBJECT TO THE TAX IMPOSED BY SECTION 511 OF THE CODE (INCLUDING THE TAX IMPOSED BY SECTION 511 OF THE CODE ON UNRELATED BUSINESS TAXABLE INCOME), (D) RURAL ELECTRIC AND TELEPHONE COOPERATIVES DESCRIBED IN SECTION 1381(a)(2)(C) OF THE CODE, (E) AN ELECTING LARGE PARTNERSHIP UNDER SECTION 775(a) OF THE CODE (ANY SUCH PERSON DESCRIBED IN THE FOREGOING CLAUSES (A), (B), (C), (D) OR (E) BEING HEREIN REFERRED TO AS A “DISQUALIFIED ORGANIZATION”), OR (F) AN AGENT OF A DISQUALIFIED ORGANIZATION, (2) NO PURPOSE OF SUCH TRANSFER IS TO IMPEDE THE ASSESSMENT OR COLLECTION OF TAX AND (3) SUCH TRANSFEREE SATISFIES CERTAIN ADDITIONAL CONDITIONS RELATING TO THE FINANCIAL CONDITION OF THE PROPOSED TRANSFEREE. NOTWITHSTANDING THE REGISTRATION IN THE CERTIFICATE REGISTER OR ANY TRANSFER, SALE OR OTHER DISPOSITION OF THIS CERTIFICATE TO A DISQUALIFIED ORGANIZATION OR AN AGENT OF A DISQUALIFIED ORGANIZATION, SUCH REGISTRATION SHALL BE DEEMED TO BE OF NO LEGAL FORCE OR EFFECT WHATSOEVER AND SUCH PERSON SHALL NOT BE DEEMED TO BE A CERTIFICATEHOLDER FOR ANY PURPOSE HEREUNDER, INCLUDING, BUT NOT LIMITED TO, THE RECEIPT OF DISTRIBUTIONS ON THIS CERTIFICATE.

Certificate No.1	Percentage Interest: 100%

Class R

Date of Pooling and Servicing Agreement and Cut-off Date: November 1, 2005	Aggregate Initial Current Principal Amount of this Certificate as of the Cut-off Date: $_______

First Distribution Date: December 25, 2005	Initial Current Principal Amount of this Certificate as of the Cut-off Date: $_______

Master Servicer: Xxxxx Fargo Bank, National Association	CUSIP: ___________
Servicer: MortgageIT, Inc.
Assumed Final Distribution Date: November 25, 2035

MORTGAGEIT TRUST 2005-AR1

MORTGAGE PASS-THROUGH CERTIFICATE

SERIES 2005-AR1

evidencing a fractional undivided interest in the distributions allocable to the Class R Certificates with respect to a Trust Fund consisting primarily of a pool of adjustable interest rate mortgage loans secured by first liens on one-to-four family residential properties (the “Mortgage Loans”) and sold by STRUCTURED ASSET MORTGAGE INVESTMENTS II INC.

This certifies that Bear, Xxxxxxx Securities Corp. is the registered owner of the Fractional Undivided Interest evidenced hereby in the beneficial ownership interest of Certificates of the same Class as this Certificate in a trust (the “Trust Fund”) primarily consisting of the Mortgage Loans sold by XXXX XX. The Mortgage Loans were sold by MortgageIT, Inc. (“MIT”) to XXXX XX. MIT will act as servicer of the Mortgage Loans (the “Servicer,” which term includes any successors thereto under the Agreement referred to below). The Trust Fund was created pursuant to the Pooling and Servicing Agreement dated as of the Cut-off Date specified above (the “Agreement”), among XXXX XX, as depositor (the “Seller”), the Master Servicer, Xxxxx Fargo, as securities administrator (the "Securities Administrator"), MIT and Deutsche Bank National Trust Company, as trustee (the “Trustee”), a summary of certain of the pertinent provisions of which is set forth hereafter. To the extent not defined herein, capitalized terms used herein shall have the meaning ascribed to them in the Agreement. This Certificate is issued under and is subject to the terms, provisions and conditions of the Agreement, to which Agreement the Holder of this Certificate by virtue of its acceptance hereof assents and by which such Holder is bound.

Each Holder of this Certificate will be deemed to have agreed to be bound by the restrictions set forth in the Agreement to the effect that (i) each person holding or acquiring any ownership interest in this Certificate must be a United States Person and a Permitted Transferee, (ii) the transfer of any ownership interest in this Certificate will be conditioned upon the delivery to the Securities Administrator of, among other things, an affidavit to the effect that it is a United States Person and Permitted Transferee, (iii) any attempted or purported transfer of any ownership interest in this Certificate in violation of such restrictions will be absolutely null and void and will vest no rights in the purported transferee, and (iv) if any person other than a United States Person and a Permitted Transferee acquires any ownership interest in this Certificate in violation of such restrictions, then the Seller will have the right, in its sole discretion and without notice to the Holder of this Certificate, to sell this Certificate to a purchaser selected by the Seller, which purchaser may be the Seller, or any affiliate of the Seller, on such terms and conditions as the Seller may choose.

The Securities Administrator will distribute on the 25th day of each month, or, if such 25th day is not a Business Day, the immediately following Business Day (each, a “Distribution Date”), commencing on the first Distribution Date specified above, to the Person in whose name this Certificate is registered at the close of business on the last Business Day of the month immediately preceding the month of the related Distribution Date, an amount equal to the product of the Fractional Undivided Interest evidenced by this Certificate and the balances required to be distributed to the Holders of Certificates of the same Class as this Certificate. The Assumed Final Distribution Date is the Distribution Date in the month following the latest scheduled maturity date of any Mortgage Loan.

Distributions on this Certificate will be made by the Securities Administrator by check mailed to the address of the Person entitled thereto as such name and address shall appear

on the Certificate Register or, if such Person so requests by notifying the Securities Administrator in writing as specified in the Agreement, by wire transfer. Notwithstanding the above, the final distribution on this Certificate will be made after due notice by the Securities Administrator of the pendency of such distribution and only upon presentation and surrender of this Certificate at the office or agency appointed by the Securities Administrator for that purpose and designated in such notice.

No transfer of this Certificate shall be made unless the transfer is made pursuant to an effective registration statement under the Securities Act of 1933, as amended (the “1933 Act”), and an effective registration or qualification under applicable state securities laws, or is made in a transaction that does not require such registration or qualification. In the event that such a transfer of this Certificate is to be made without registration or qualification, the Trustee shall require receipt of (i) if such transfer is purportedly being made (a) in reliance upon Rule 144A under the 1933 Act or (b) to a transferee that is an “Institutional Accredited Investor” within the meaning of Rule 501(a)(1), (2), (3) or (7) of Regulation D under the 1933 Act, written certifications from the Holder of the Certificate desiring to effect the transfer, and from such Holder’s prospective transferee, substantially in the forms attached to the Agreement as Exhibit F-1 or F-2, as applicable, and (ii) if requested by the Securities Administrator, an Opinion of Counsel satisfactory to it that such transfer may be made without such registration or qualification (which Opinion of Counsel shall not be an expense of the Trust Fund or of the Seller, the Trustee, the Securities Administrator or the Master Servicer in their respective capacities as such), together with copies of the written certification(s) of the Holder of the Certificate desiring to effect the transfer and/or such Holder’s prospective transferee upon which such Opinion of Counsel is based. None of the Seller, the Securities Administrator or the Trustee is obligated to register or qualify the Class of Certificates specified on the face hereof under the 1933 Act or any other securities law or to take any action not otherwise required under the Agreement to permit the transfer of such Certificates without registration or qualification. Any Holder desiring to effect a transfer of this Certificate shall be required to indemnify the Trustee, the Securities Administrator, the Seller, the Seller and the Master Servicer against any liability that may result if the transfer is not so exempt or is not made in accordance with such federal and state laws.

No transfer of this Class R Certificate will be made unless the Trustee and the Securities Administrator have received either (i) opinion of counsel for the benefit of the Trustee, Master Servicer and the Securities Administrator and which they may rely which is satisfactory to the Securities Administrator that the purchase of this certificate is permissible under local law, will not constitute or result in a non-exempt prohibited transaction under Section 406 of the Employee Retirement Income Security Act of 1974, as amended (“ERISA”), and Section 4975 of the Internal Revenue Code, as amended (the “Code”) and will not subject the Master Servicer, the Trustee or the Securities Administrator to any obligation or liability in addition to those undertaken in the Agreement or (ii) a representation letter stating that the transferee is not acquiring directly or indirectly by, or on behalf of, an employee benefit plan or other retirement arrangement (a "Plan") that is subject to Title I of ERISA, and/or Section 4975 of the Code, or by a person using "plan assets" of a Plan.

The Agreement permits, with certain exceptions therein provided: (i) the amendment thereof and of the Servicing Agreement and the modification of the rights and obligations of the Seller, the Master Servicer, the Securities Administrator and the Trustee and the rights of the Certificateholders under the Agreement from time to time by MIT, the Seller, the Master Servicer, the Securities Administrator and the Trustee, and (ii) the amendment thereof and of the Servicing Agreement by the Master Servicer and the Trustee with the consent of the Holders of Certificates, evidencing Fractional Undivided Interests aggregating not less than 51% of the Trust Fund (or in certain cases, Holders of Certificates of affected Classes evidencing such percentage of the Fractional Undivided Interests thereof). Any such consent by the Holder of this Certificate shall be conclusive and binding on such Holder and upon all future Holders of this Certificate and of any Certificate issued upon the transfer hereof or in lieu hereof whether or not notation of such consent is made upon this Certificate. The Agreement also permits the amendment thereof and of the Servicing Agreement in certain limited circumstances, without the consent of the Holders of any of the Certificates.

Person in whose name this Certificate is registered as the owner hereof for all purposes, and none of the Seller, the Master Servicer, the Trustee, the Securities Administrator or any such agent shall be affected by notice to the contrary.

The obligations created by the Agreement and the Trust Fund created thereby (other than the obligations to make payments to Certificateholders with respect to the termination of the Agreement) shall terminate upon the earlier of (i) the later of (A) the maturity or other liquidation (or Advance with respect thereto) of the last Mortgage Loan remaining in the Trust Fund and disposition of all property acquired upon foreclosure or deed in lieu of foreclosure of any Mortgage Loan and (B) the remittance of all funds due under the Agreement, or (ii) the optional repurchase by the party named in the Agreement of all the Mortgage Loans and other assets of the Trust Fund in accordance with the terms of the Agreement. Such optional repurchase may be made only if (i) the Scheduled Principal Balance of the Mortgage Loans at the time of any such repurchase is less than 10%, in the case of the Servicer, or 1%, in the case of the Master Servicer, of the Cut-off Date Balance or (ii) the Depositor, based upon an Opinion of Counsel addressed to the Depositor and the Trustee has determined that the REMIC status of any REMIC under the Agreement has been lost or that a substantial risk exists that such REMIC status will be lost for the then-current taxable year. The exercise of such right will effect the early retirement of the Certificates. In no event, however, will the Trust Fund created by the Agreement continue beyond the expiration of 21 years after the death of certain persons identified in the Agreement.

IN WITNESS WHEREOF, the Securities Administrator has caused this Certificate to be duly executed.

Dated: November 21, 2005	XXXXX FARGO BANK, NATIONAL ASSOCIATION
	not in its individual capacity but solely as Securities Administrator
	By:
	Authorized Signatory

CERTIFICATE OF AUTHENTICATION

This is one of the Class R Certificates referred to in the within-mentioned Agreement.

XXXXX FARGO BANK, NATIONAL ASSOCIATION

Authorized signatory of Xxxxx Fargo Bank, National Association, not in its individual capacity but solely as Securities Administrator

By:

Authorized Signatory

ASSIGNMENT

I (We) further direct the Certificate Registrar to issue a new Certificate of a like denomination and Class, to the above named assignee and deliver such Certificate to the following address:

Dated:

Signature by or on behalf of assignor

Signature Guaranteed

DISTRIBUTION INSTRUCTIONS

The assignee should include the following for purposes of distribution:

This information is provided by __________________, the assignee named above, or ________________________, as its agent.

EXHIBIT A-6

FORM OF CLASS I-B-[4][5][6] CERTIFICATE

THIS CERTIFICATE IS SUBORDINATED IN RIGHT OF PAYMENT TO THE CLASS I-A, CLASS I-X, CLASS I-M-X, CLASS I-B-1, CLASS I-B-2 AND CLASS I-B-3 CERTIFICATES AS DESCRIBED IN THE AGREEMENT (AS DEFINED BELOW).

THE CURRENT PRINCIPAL AMOUNT OF THIS CERTIFICATE WILL BE DECREASED BY THE PRINCIPAL PAYMENTS AND REALIZED LOSSES HEREON AND INCREASED TO THE EXTENT OF NET DEFERRED INTEREST ALLOCATED THERETO AS SET FORTH IN THE AGREEMENT. ACCORDINGLY, FOLLOWING THE INITIAL ISSUANCE OF THE CERTIFICATES, THE CURRENT PRINCIPAL AMOUNT OF THIS CERTIFICATE WILL BE DIFFERENT FROM THE DENOMINATION SHOWN BELOW. ANYONE ACQUIRING THIS CERTIFICATE MAY ASCERTAIN ITS CURRENT PRINCIPAL AMOUNT BY INQUIRY OF THE SECURITIES ADMINISTRATOR NAMED HEREIN.

THIS CERTIFICATE HAS NOT BEEN AND WILL NOT BE REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE “SECURITIES ACT”), OR UNDER ANY STATE SECURITIES LAWS. THE HOLDER HEREOF, BY PURCHASING THIS CERTIFICATE, AGREES THAT THIS CERTIFICATE MAY BE REOFFERED, RESOLD, PLEDGED OR OTHERWISE TRANSFERRED ONLY IN COMPLIANCE WITH THE SECURITIES ACT AND OTHER APPLICABLE LAWS AND ONLY (1) PURSUANT TO RULE 144A UNDER THE SECURITIES ACT (“RULE 144A”) TO A PERSON THAT THE HOLDER REASONABLY BELIEVES IS A QUALIFIED INSTITUTIONAL BUYER WITHIN THE MEANING OF RULE 144A (A “QIB”), PURCHASING FOR ITS OWN ACCOUNT OR A QIB PURCHASING FOR THE ACCOUNT OF A QIB, WHOM THE HOLDER HAS INFORMED, IN EACH CASE, THAT THE REOFFER, RESALE, PLEDGE OR OTHER TRANSFER IS BEING MADE IN RELIANCE ON RULE 144A OR (2) IN CERTIFICATED FORM TO AN “INSTITUTIONAL ACCREDITED INVESTOR” WITHIN THE MEANING THEREOF IN RULE 501(a)(1), (2), (3) or (7) OF REGULATION D UNDER THE ACT OR ANY ENTITY IN WHICH ALL OF THE EQUITY OWNERS COME WITHIN SUCH PARAGRAPHS PURCHASING NOT FOR DISTRIBUTION IN VIOLATION OF THE SECURITIES ACT, SUBJECT TO (A) THE RECEIPT BY THE SECURITIES ADMINISTRATOR OF A LETTER SUBSTANTIALLY IN THE FORM PROVIDED IN THE AGREEMENT AND (B) THE RECEIPT BY THE SECURITIES ADMINISTRATOR OF SUCH OTHER EVIDENCE ACCEPTABLE TO THE SECURITIES ADMINISTRATOR THAT SUCH REOFFER, RESALE, PLEDGE OR TRANSFER IS IN COMPLIANCE WITH THE SECURITIES ACT AND OTHER APPLICABLE LAWS OR IN EACH CASE IN ACCORDANCE WITH ALL APPLICABLE SECURITIES LAWS OF THE UNITED STATES AND ANY OTHER APPLICABLE JURISDICTION.

THIS CERTIFICATE MAY NOT BE ACQUIRED DIRECTLY OR INDIRECTLY BY, OR ON BEHALF OF, AN EMPLOYEE BENEFIT PLAN OR OTHER RETIREMENT ARRANGEMENT (A "PLAN") THAT IS SUBJECT TO TITLE I OF THE EMPLOYEE RETIREMENT INCOME SECURITY ACT OF 1974, AS AMENDED, AND/OR SECTION 4975 OF THE INTERNAL REVENUE CODE OF 1986, AS AMENDED (THE "CODE"), OR BY A PERSON USING "PLAN ASSETS" OF A PLAN, UNLESS THE PROPOSED TRANSFEREE PROVIDES THE SECURITIES ADMINISTRATOR WITH AN OPINION OF COUNSEL FOR THE BENEFIT OF THE TRUSTEE, MASTER SERVICER AND THE SECURITIES ADMINISTRATOR AND ON WHICH THEY MAY RELY WHICH IS SATISFACTORY TO THE SECURITIES ADMINISTRATOR THAT THE PURCHASE OF THIS CERTIFICATE IS PERMISSIBLE UNDER APPLICABLE LAW, WILL NOT CONSTITUTE OR RESULT IN A NON-EXEMPT PROHIBITED TRANSACTION UNDER SECTION 406 OF THE EMPLOYEE RETIREMENT INCOME SECURITY ACT OF 1974, AS AMENDED, OR SECTION 4975 OF THE CODE AND WILL NOT SUBJECT THE MASTER SERVICER, THE TRUSTEE OR THE SECURITIES ADMINISTRATOR TO ANY OBLIGATION OR LIABILITY IN ADDITION TO THOSE UNDERTAKEN IN THE AGREEMENT.

Certificate No.1	Adjustable Pass-Through Rate

Class I-B-[4][5][6] Crossed Subordinate

Date of Pooling and Servicing Agreement and Cut-off Date: November 1, 2005	Aggregate Initial Current Principal Amount of this Certificate as of the Cut-off Date: $__________

First Distribution Date: December 25, 2005	Initial Current Principal Amount of this Certificate as of the Cut-off Date: $__________

Master Servicer: Xxxxx Fargo Bank, National Association	CUSIP: ___________
Servicer: MortgageIT, Inc.
Assumed Final Distribution Date: November 25, 2035

MORTGAGEIT TRUST 2005-AR1

MORTGAGE PASS-THROUGH CERTIFICATE

SERIES 2005-AR1

evidencing a fractional undivided interest in the distributions allocable to the Class I-B-[4][5][6] Certificates with respect to a Trust Fund consisting primarily of a pool of adjustable interest rate mortgage loans secured by first liens on one-to-four family residential properties (the “Mortgage Loans”) and sold by STRUCTURED ASSET MORTGAGE INVESTMENTS II INC.

This Certificate is payable solely from the assets of the Trust Fund, and does not represent an obligation of or interest in Structured Asset Mortgage Investments II Inc. (“XXXX XX”), the Servicer or the Trustee referred to below or any of their affiliates or any other person. Neither this Certificate nor the underlying Mortgage Loans are guaranteed or insured by any

governmental entity or by XXXX XX, the Servicer or the Trustee or any of their affiliates or any other person. None of XXXX XX, the Servicer or any of their affiliates will have any obligation with respect to any certificate or other obligation secured by or payable from payments on the Certificates.

This certifies that Bear, Xxxxxxx Securities Corp. is the registered owner of the Fractional Undivided Interest evidenced hereby in the beneficial ownership interest of Certificates of the same Class as this Certificate in a trust (the “Trust Fund”) primarily consisting of the Mortgage Loans sold by XXXX XX. The Mortgage Loans were sold by MortgageIT, Inc. (“MIT”) to XXXX XX. MIT will act as servicer of the Mortgage Loans (the “Servicer,” which term includes any successors thereto under the Agreement referred to below). The Trust Fund was created pursuant to the Pooling and Servicing Agreement dated as of the Cut-off Date specified above (the “Agreement”), among XXXX XX, as depositor (the “Seller”), MIT and Deutsche Bank National Trust Company, as trustee (the “Trustee”), a summary of certain of the pertinent provisions of which is set forth hereafter. To the extent not defined herein, capitalized terms used herein shall have the meaning ascribed to them in the Agreement. This Certificate is issued under and is subject to the terms, provisions and conditions of the Agreement, to which Agreement the Holder of this Certificate by virtue of its acceptance hereof assents and by which such Holder is bound.

Interest on this Certificate will accrue during the period from and including the preceding Distribution Date (as hereinafter defined) (or in the case of the first Distribution Date, from the Closing Date) to and including the day prior to the current Distribution Date on the Current Principal Amount hereof at a per annum rate equal to the Pass-Through Rate set forth in the Agreement. The Securities Administrator will distribute on the 25th day of each month, or, if such 25th day is not a Business Day, the immediately following Business Day (each, a “Distribution Date”), commencing on the first Distribution Date specified above, to the Person in whose name this Certificate is registered at the close of business on the last Business Day of the month immediately preceding the month of the related Distribution Date, an amount equal to the product of the Fractional Undivided Interest evidenced by this Certificate and the balance required to be distributed to the Holders of Certificates of the same Class as this Certificate. The Assumed Final Distribution Date is the Distribution Date in the month following the latest scheduled maturity date of any Mortgage Loan and is not likely to be the date on which the Current Principal Amount of this Class of Certificates will be reduced to zero.

No transfer of this Certificate shall be made unless the transfer is made pursuant to an effective registration statement under the Securities Act of 1933, as amended (the “1933

Act”), and an effective registration or qualification under applicable state securities laws, or is made in a transaction that does not require such registration or qualification. In the event that such a transfer of this Certificate is to be made without registration or qualification, the Trustee shall require receipt of (i) if such transfer is purportedly being made (a) in reliance upon Rule 144A under the 1933 Act or (b) to a transferee that is an “Institutional Accredited Investor” within the meaning of Rule 501(a)(1), (2), (3) or (7) of Regulation D under the 1933 Act, written certifications from the Holder of the Certificate desiring to effect the transfer, and from such Holder’s prospective transferee, substantially in the forms attached to the Agreement as Exhibit F-1 or F-2, as applicable, and (ii) if requested by the Securities Administrator, an Opinion of Counsel satisfactory to it that such transfer may be made without such registration or qualification (which Opinion of Counsel shall not be an expense of the Trust Fund or of the Seller, the Trustee, the Securities Administrator or the Master Servicer in their respective capacities as such), together with copies of the written certification(s) of the Holder of the Certificate desiring to effect the transfer and/or such Holder’s prospective transferee upon which such Opinion of Counsel is based. None of the Seller, the Securities Administrator or the Trustee is obligated to register or qualify the Class of Certificates specified on the face hereof under the 1933 Act or any other securities law or to take any action not otherwise required under the Agreement to permit the transfer of such Certificates without registration or qualification. Any Holder desiring to effect a transfer of this Certificate shall be required to indemnify the Trustee, the Securities Administrator, the Seller, the Seller and the Master Servicer against any liability that may result if the transfer is not so exempt or is not made in accordance with such federal and state laws.

No transfer of this Class I-B-[4][5][6] Certificate will be made unless the Trustee and the Securities Administrator have received either (i) opinion of counsel for the benefit of the Trustee, Master Servicer and the Securities Administrator and which they may rely which is satisfactory to the Securities Administrator that the purchase of this certificate is permissible under local law, will not constitute or result in a non-exempt prohibited transaction under Section 406 of the Employee Retirement Income Security Act of 1974, as amended (“ERISA”), and Section 4975 of the Internal Revenue Code, as amended (the “Code”) and will not subject the Master Servicer, the Trustee or the Securities Administrator to any obligation or liability in addition to those undertaken in the Agreement or (ii) a representation letter stating that the transferee is not acquiring directly or indirectly by, or on behalf of, an employee benefit plan or other retirement arrangement (a "Plan") that is subject to Title I of ERISA, and/or Section 4975 of the Code, or by a person using "plan assets" of a Plan.

The Agreement permits, with certain exceptions therein provided: (i) the amendment thereof and of the Servicing Agreement and the modification of the rights and obligations of the Seller, the Master Servicer, the Securities Administrator and the Trustee and the rights of the Certificateholders under the Agreement from time to time by MortgageIT, Inc., the Seller, the Master Servicer, the Securities Administrator and the Trustee, and (ii) the amendment thereof and of the Servicing Agreement by the Master Servicer and the Trustee with the consent of the Holders of Certificates, evidencing Fractional Undivided Interests aggregating not less than 51% of the Trust Fund (or in certain cases, Holders of Certificates of affected Classes evidencing such percentage of the Fractional Undivided Interests thereof). Any such consent by the Holder of this Certificate shall be conclusive and binding on such Holder and upon all future Holders of this Certificate and of any Certificate issued upon the transfer hereof or in lieu hereof whether or not notation of such consent is made upon this Certificate. The Agreement also permits the amendment thereof and of the Servicing Agreement in certain limited circumstances, without the consent of the Holders of any of the Certificates.

Counsel addressed to the Depositor and the Trustee has determined that the REMIC status of any REMIC under the Agreement has been lost or that a substantial risk exists that such REMIC status will be lost for the then-current taxable year. The exercise of such right will effect the early retirement of the Certificates. In no event, however, will the Trust Fund created by the Agreement continue beyond the expiration of 21 years after the death of certain persons identified in the Agreement.

Unless this Certificate has been countersigned by an authorized signatory of the Trustee by manual signature, this Certificate shall not be entitled to any benefit under the Agreement, or be valid for any purpose.

IN WITNESS WHEREOF, the Securities Administrator has caused this Certificate to be duly executed.

Dated: November 21, 2005	XXXXX FARGO BANK, NATIONAL ASSOCIATION
	Not in its individual capacity but solely as Trustee
	By:
	Authorized Signatory

CERTIFICATE OF AUTHENTICATION

This is one of the Class I-B-[4][5][6] Certificates referred to in the within-mentioned Agreement.

XXXXX FARGO BANK, NATIONAL ASSOCIATION
Authorized signatory of Xxxxx Fargo Bank, National Association, not in its individual capacity but solely as Securities Administrator

By:

Authorized Signatory

ASSIGNMENT

I (We) further direct the Certificate Registrar to issue a new Certificate of a like denomination and Class, to the above named assignee and deliver such Certificate to the following address:

Dated:

Signature by or on behalf of assignor

Signature Guaranteed

DISTRIBUTION INSTRUCTIONS

The assignee should include the following for purposes of distribution:

This information is provided by __________________, the assignee named above, or ________________________, as its agent.

EXHIBIT A-7

FORM OF CLASS XP CERTIFICATE

THIS CERTIFICATE HAS NOT BEEN AND WILL NOT BE REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE “SECURITIES ACT”), OR UNDER ANY STATE SECURITIES LAWS. THE HOLDER HEREOF, BY PURCHASING THIS CERTIFICATE, AGREES THAT THIS CERTIFICATE MAY BE REOFFERED, RESOLD, PLEDGED OR OTHERWISE TRANSFERRED ONLY IN COMPLIANCE WITH THE SECURITIES ACT AND OTHER APPLICABLE LAWS AND ONLY (1) PURSUANT TO RULE 144A UNDER THE SECURITIES ACT (“RULE 144A”) TO A PERSON THAT THE HOLDER REASONABLY BELIEVES IS A QUALIFIED INSTITUTIONAL BUYER WITHIN THE MEANING OF RULE 144A (A “QIB”), PURCHASING FOR ITS OWN ACCOUNT OR A QIB PURCHASING FOR THE ACCOUNT OF A QIB, WHOM THE HOLDER HAS INFORMED, IN EACH CASE, THAT THE REOFFER, RESALE, PLEDGE OR OTHER TRANSFER IS BEING MADE IN RELIANCE ON RULE 144A OR (2) IN CERTIFICATED FORM TO AN “INSTITUTIONAL ACCREDITED INVESTOR” WITHIN THE MEANING THEREOF IN RULE 501(a)(1), (2), (3) or (7) OF REGULATION D UNDER THE ACT OR ANY ENTITY IN WHICH ALL OF THE EQUITY OWNERS COME WITHIN SUCH PARAGRAPHS PURCHASING NOT FOR DISTRIBUTION IN VIOLATION OF THE SECURITIES ACT, SUBJECT TO (A) THE RECEIPT BY THE SECURITIES ADMINISTRATOR OF A LETTER SUBSTANTIALLY IN THE FORM PROVIDED IN THE AGREEMENT AND (B) THE RECEIPT BY THE SECURITIES ADMINISTRATOR OF SUCH OTHER EVIDENCE ACCEPTABLE TO THE SECURITIES ADMINISTRATOR THAT SUCH REOFFER, RESALE, PLEDGE OR TRANSFER IS IN COMPLIANCE WITH THE SECURITIES ACT AND OTHER APPLICABLE LAWS OR IN EACH CASE IN ACCORDANCE WITH ALL APPLICABLE SECURITIES LAWS OF THE UNITED STATES AND ANY OTHER APPLICABLE JURISDICTION.

Certificate No.1	Aggregate Initial Notional Amount of the Class XP Certificates as of the Cut-off Date: $100

Class XP Certificate

Date of Pooling and Servicing Agreement and Cut-off Date: November 1, 2005	Percentage Interest of this Certificate: 100%

First Distribution Date: December 25, 2005	CUSIP: ___________
Master Servicer: Xxxxx Fargo Bank, National Association

Servicer: MortgageIT, Inc.
Assumed Final Distribution Date: November 25, 2035

MORTGAGEIT TRUST 2005-AR1

MORTGAGE PASS-THROUGH CERTIFICATE

SERIES 2005-AR1

evidencing a fractional undivided interest in the distributions allocable to the Class XP Certificates with respect to a Trust Fund consisting primarily of a pool of adjustable interest rate mortgage loans secured by first liens on one-to-four family residential properties (the “Mortgage Loans”) and sold by STRUCTURED ASSET MORTGAGE INVESTMENTS II INC.

Mortgage Loans are guaranteed or insured by any governmental entity or by XXXX XX, the Master Servicer or the Trustee or any of their affiliates or any other person. None of XXXX XX, the Master Servicer or any of their affiliates will have any obligation with respect to any certificate or other obligation secured by or payable from payments on the Certificates.

The Securities Administrator will distribute on the 25th day of each month, or, if such 25th day is not a Business Day, the immediately following Business Day (each, a “Distribution Date”), commencing on the first Distribution Date specified above, to the Person in whose name this Certificate is registered at the close of business on the last Business Day of the month immediately preceding the month of the related Distribution Date, an amount equal to the product of the Fractional Undivided Interest evidenced by this Certificate and the balance required to be distributed to the Holders of Certificates of the same Class as this Certificate. The Assumed Final Distribution Date is the Distribution Date in the month following the latest scheduled maturity date of any Mortgage Loan and is not likely to be the date on which the Current Principal Amount of this Class of Certificates will be reduced to zero.

144A under the 1933 Act or (b) to a transferee that is an “Institutional Accredited Investor” within the meaning of Rule 501(a)(1), (2), (3) or (7) of Regulation D under the 1933 Act, written certifications from the Holder of the Certificate desiring to effect the transfer, and from such Holder’s prospective transferee, substantially in the forms attached to the Agreement as Exhibit F-1 or F-2, as applicable, and (ii) if requested by the Securities Administrator, an Opinion of Counsel satisfactory to it that such transfer may be made without such registration or qualification (which Opinion of Counsel shall not be an expense of the Trust Fund or of the Seller, the Trustee, the Securities Administrator or the Master Servicer in their respective capacities as such), together with copies of the written certification(s) of the Holder of the Certificate desiring to effect the transfer and/or such Holder’s prospective transferee upon which such Opinion of Counsel is based. None of the Seller, the Securities Administrator or the Trustee is obligated to register or qualify the Class of Certificates specified on the face hereof under the 1933 Act or any other securities law or to take any action not otherwise required under the Agreement to permit the transfer of such Certificates without registration or qualification. Any Holder desiring to effect a transfer of this Certificate shall be required to indemnify the Trustee, the Securities Administrator, the Seller, the Seller and the Master Servicer against any liability that may result if the transfer is not so exempt or is not made in accordance with such federal and state laws.

No transfer of this Class XP Certificate will be made unless the Trustee and the Securities Administrator have received either (i) opinion of counsel for the benefit of the Trustee, Master Servicer and the Securities Administrator and which they may rely which is satisfactory to the Securities Administrator that the purchase of this certificate is permissible under local law, will not constitute or result in a non-exempt prohibited transaction under Section 406 of the Employee Retirement Income Security Act of 1974, as amended (“ERISA”), and Section 4975 of the Internal Revenue Code, as amended (the “Code”) and will not subject the Master Servicer, the Trustee or the Securities Administrator to any obligation or liability in addition to those undertaken in the Agreement or (ii) a representation letter stating that the transferee is not acquiring directly or indirectly by, or on behalf of, an employee benefit plan or other retirement arrangement (a "Plan") that is subject to Title I of ERISA, and/or Section 4975 of the Code, or by a person using "plan assets" of a Plan.

the Seller, the Master Servicer, the Securities Administrator and the Trustee, and (ii) the amendment thereof and of the Servicing Agreement by the Master Servicer and the Trustee with the consent of the Holders of Certificates, evidencing Fractional Undivided Interests aggregating not less than 51% of the Trust Fund (or in certain cases, Holders of Certificates of affected Classes evidencing such percentage of the Fractional Undivided Interests thereof). Any such consent by the Holder of this Certificate shall be conclusive and binding on such Holder and upon all future Holders of this Certificate and of any Certificate issued upon the transfer hereof or in lieu hereof whether or not notation of such consent is made upon this Certificate. The Agreement also permits the amendment thereof and of the Servicing Agreement in certain limited circumstances, without the consent of the Holders of any of the Certificates.

The obligations created by the Agreement and the Trust Fund created thereby (other than the obligations to make payments to Certificateholders with respect to the termination of the Agreement) shall terminate upon the earlier of (i) the later of (A) the maturity or other liquidation (or Advance with respect thereto) of the last Mortgage Loan remaining in the Trust Fund and disposition of all property acquired upon foreclosure or deed in lieu of foreclosure of any Mortgage Loan and (B) the remittance of all funds due under the Agreement, or (ii) the optional repurchase by the party named in the Agreement of all the Mortgage Loans and other assets of the Trust Fund in accordance with the terms of the Agreement. Such optional repurchase may be made only if (i) the Scheduled Principal Balance of the Mortgage Loans at the time of any such repurchase is less than 10%, in the case of the Servicer, or 1%, in the case of the Master Servicer, of the Cut-off Date Balance or (ii) the Depositor, based upon an Opinion of Counsel addressed to the Depositor and the Trustee has determined that the REMIC status of any REMIC under the Agreement has been lost or that a substantial risk exists that such REMIC status will be lost for the then-current taxable year. The exercise of such right will effect the early retirement of the Certificates. In no event, however, will the Trust Fund created by the

Agreement continue beyond the expiration of 21 years after the death of certain persons identified in the Agreement.

IN WITNESS WHEREOF, the Securities Administrator has caused this Certificate to be duly executed.

Dated: November 21, 2005	XXXXX FARGO BANK, NATIONAL ASSOCIATION
	Not in its individual capacity but solely as Securities Administrator
	By:
	Authorized Signatory

CERTIFICATE OF AUTHENTICATION

This is one of the Class XP Certificates referred to in the within-mentioned Agreement.

XXXXX FARGO BANK, NATIONAL ASSOCIATION
Authorized signatory of Xxxxx Fargo Bank, National Association, not in its individual capacity but solely as Securities Administrator

By:

Authorized Signatory

ASSIGNMENT

I (We) further direct the Certificate Registrar to issue a new Certificate of a like denomination and Class, to the above named assignee and deliver such Certificate to the following address:

Dated:

Signature by or on behalf of assignor

Signature Guaranteed

DISTRIBUTION INSTRUCTIONS

The assignee should include the following for purposes of distribution:

This information is provided by __________________, the assignee named above, or ________________________, as its agent.

EXHIBIT B

MORTGAGE LOAN SCHEDULE

[On File With Trustee]

EXHIBIT C

[Closing Date Substitute Loans]

EXHIBIT D

REQUEST FOR RELEASE OF DOCUMENTS

To:	Deutsche Bank National Trust Company
	0000 X. Xx. Xxxxxx Xxxxx
	Xxxxx Xxx, Xxxxxxxxxx 00000
RE:	Pooling and Servicing Agreement, dated as of November 1, 2005 among Structured Asset Mortgage Investments II Inc., as depositor, Deutsche Bank National Trust Company, as trustee and MortgageIT, Inc., as servicer and seller, issuing MortgageIT Trust 2005-AR1, Mortgage Pass-Through Certificates, Series 2005-AR1

In connection with the administration of the Mortgage Loans held by you pursuant to the above-captioned Pooling and Servicing Agreement, we request the release, and hereby acknowledge receipt, of the Mortgage File for the Mortgage Loan described below, for the reason indicated.

Mortgage Loan Number:

Mortgagor Name, Address & Zip Code:

Reason for Requesting Documents (check one):

_____	1.	Mortgage Paid in Full and proceeds have been deposited into the Custodial Account
_____	2.	Foreclosure
_____	3.	Substitution
_____	4.	Other Liquidation
_____	5.	Nonliquidation	Reason:
_____	6.	California Mortgage Loan paid in full

By:

(authorized signer)

Issuer:

Address:

Date:

EXHIBIT E

FORM OF TRANSFER AFFIDAVIT

Affidavit pursuant to Section 860E(e)(4) of the Internal Revenue Code of 1986, as amended, and for other purposes

STATE OF			)
			)ss:
COUNTY OF			)

[NAME OF OFFICER], being first duly sworn, deposes and says:

1. That he is [Title of Officer] of [Name of Investor] (record or beneficial owner of the G MortgageIT Trust 2005-AR1, Mortgage Pass-Through Certificates, Series 2005-AR1, Class R Certificates) (the “Class R Certificates”) (the A Owner@), a [savings institution] [corporation] duly organized and existing under the laws of [the State of _____] [the United States], on behalf of which he makes this affidavit.

2. That the Owner (i) is not and will not be as of [Closing Date][date of purchase] a “disqualified organization” within the meaning of Section 860E(e)(5) of the Internal Revenue Code of 1986, as amended (the “Code”) or an “electing large partnership” within the meaning of Section 775 of the Code, (ii) will endeavor to remain other than a disqualified organization and an electing large partnership for so long as it retains its ownership in the Class R Certificates and (iii) is acquiring the Class R Certificates for its own account or for the account of another Owner from which it has received an affidavit and agreement in substantially the same form as this affidavit and agreement. (For this purpose, a “disqualified organization” means an electing large partnership under Section 775 of the Code, the United States, any state or political subdivision thereof, any agency or instrumentality of any of the foregoing (other than an instrumentality all of the activities of which are subject to tax and, except for the Federal Home Loan Mortgage Corporation, a majority of whose board of directors is not selected by any such governmental entity) or any foreign government, international organization or any agency or instrumentality of such foreign government or organization, any rural electric or telephone cooperative, or any organization (other than certain farmers’ cooperatives) that is generally exempt from federal income tax unless such organization is subject to the tax on unrelated business taxable income).

3. That the Owner is aware (i) of the tax that would be imposed on transfers of Class R Certificates to disqualified organizations or electing large partnerships under the Code, that applies to all transfers of Class R Certificates after March 31, 1988; (ii) that such tax would be on the transferor (or, with respect to transfers to electing large partnerships, on each such partnership), or, if such transfer is through an agent (which person includes a broker, nominee or middleman) for a disqualified organization, on the agent; (iii) that the person (other than with respect to transfers to electing large partnerships) otherwise liable for the tax shall be relieved of liability for the tax if the transferee furnishes to such person an affidavit that the transferee is not a disqualified organization and, at the time of transfer, such person does not have actual knowledge that the affidavit is false; and (iv) that the Class R Certificates may be “noneconomic residual interests” within the meaning of Treasury regulations promulgated pursuant to the Code and that the transferor of a noneconomic residual interest will remain liable for any taxes due

with respect to the income on such residual interest, unless no significant purpose of the transfer was to impede the assessment or collection of tax.

4. That the Owner is aware of the tax imposed on a “pass-through entity” holding Class R Certificates if either the pass-through entity is an electing large partnership under Section 775 of the Code or if at any time during the taxable year of the pass-through entity a disqualified organization is the record holder of an interest in such entity. (For this purpose, a “pass through entity” includes a regulated investment company, a real estate investment trust or common trust fund, a partnership, trust or estate, and certain cooperatives.)

5. That the Owner is aware that the Trustee will not register the transfer of any Class R Certificates unless the transferee, or the transferee’s agent, delivers to it an affidavit and agreement, among other things, in substantially the same form as this affidavit and agreement. The Owner expressly agrees that it will not consummate any such transfer if it knows or believes that any of the representations contained in such affidavit and agreement are false.

6. That the Owner has reviewed the restrictions set forth on the face of the Class R Certificates and the provisions of Section 5.05 of the Pooling and Servicing Agreement under which the Class R Certificates were issued. The Owner expressly agrees to be bound by and to comply with such restrictions and provisions.

7. That the Owner consents to any additional restrictions or arrangements that shall be deemed necessary upon advice of counsel to constitute a reasonable arrangement to ensure that the Class R Certificates will only be owned, directly or indirectly, by an Owner that is not a disqualified organization.

The Owner’s Taxpayer Identification Number is # _______________.

9. This affidavit and agreement relates only to the Class R Certificates held by the Owner and not to any other holder of the Class R Certificates. The Owner understands that the liabilities described herein relate only to the Class R Certificates.

10. That no purpose of the Owner relating to the transfer of any of the Class R Certificates by the Owner is or will be to impede the assessment or collection of any tax; in making this representation, the Owner warrants that the Owner is familiar with (i) Treasury Regulation Section 1.860E-1 (c) and recent amendments thereto, effective as of August 19, 2002, and (ii) the preamble describing the adoption of the amendments to such regulation, which is attached hereto as Exhibit 1.

11. That the Owner has no present knowledge or expectation that it will be unable to pay any United States taxes owed by it so long as any of the Certificates remain outstanding. In this regard, the Owner hereby represents to and for the benefit of the person from whom it acquired the Class R Certificates that the Owner intends to pay taxes associated with holding such Class R Certificates as they become due, fully understanding that it may incur tax liabilities in excess of any cash flows generated by the Class R Certificates.

12. That the Owner has no present knowledge or expectation that it will become insolvent or subject to a bankruptcy proceeding for so long as any of the Class R Certificates remain outstanding.

13. The Owner is a citizen or resident of the United States, a corporation, partnership or other entity created or organized in, or under the laws of, the United States or any political subdivision thereof, or an estate or trust whose income from sources without the United States is includable in gross income for United States federal income tax purposes regardless of its connection with the conduct of a trade or business within the United States.

14. The Owner hereby agrees that it will not cause income from the Class R Certificates to be attributable to a foreign permanent establishment or fixed base (within the meaning of an applicable income tax treaty) of the Owner or another United States taxpayer.

15. (a) The Purchaser hereby certifies, represents and warrants to, and covenants with the Company and the Trustee that the following statements in (1) or (2) are accurate:

(1) The Certificates (i) are not being acquired by, and will not be transferred to, any employee benefit plan within the meaning of section 3(3) of the Employee Retirement Income Security Act of 1974, as amended (“ERISA”) or other retirement arrangement, including individual retirement accounts and annuities, Xxxxx plans and bank collective investment funds and insurance company general or separate accounts in which such plans, accounts or arrangements are invested, that is subject to Section 406 of ERISA or Section 4975 of the Internal Revenue Code of 1986 (the “Code”) (any of the foregoing, a “Plan”), (ii) are not being acquired with “plan assets” of a Plan within the meaning of the Department of Labor (“DOL”) regulation, 29 C.F.R. ? 2510.3-101 or otherwise under ERISA, and (iii) will not be transferred to any entity that is deemed to be investing plan assets within the meaning of the DOL regulation, 29 C.F.R. ? 2510.3-101 or otherwise under ERISA;

(2) The purchase of Certificates is permissible under applicable law, will not constitute or result in any prohibited transaction under ERISA or Section 4975 of the Code, will not subject the Company or the Trustee to any obligation in addition to those undertaken in the Pooling and Servicing Agreement and, with respect to each source of funds (“Source”) being used by the Purchaser to acquire the Certificates, each of the following statements is accurate: (a) the Purchaser is an insurance company; (b) the Source is assets of the Purchaser’s “general account;” (c) the conditions set forth in Prohibited Transaction Class Exemption (“PTCE”) 95-60 issued by the DOL have been satisfied and the purchase, holding and transfer of Certificates by or on behalf of the Purchaser are exempt under PTCE 95-60; and (d) the balance of reserves and liabilities for such general account contracts held by or on behalf of any Plan does not exceed 10% of the total reserves and liabilities of such general account plus surplus as of the date hereof (for purposes of this clause, all Plans maintained by the same employer (or affiliate thereof) or employee organization are deemed to be a single Plan) in connection with its purchase and holding of such Certificates; or

(b) The Owner will provide the Trustee and the Company with an opinion of counsel acceptable to and in form and substance satisfactory to the Trustee and the Company to

the effect that the purchase of Certificates is permissible under applicable law, will not constitute or result in any non-exempt prohibited transaction under ERISA or Section 4975 of the Code and will not subject the Trustee or the Company to any obligation or liability (including obligations or liabilities under ERISA or Section 4975 of the Code) in addition to those undertaken in the Pooling and Servicing Agreement.

In addition, the Owner hereby certifies, represents and warrants to, and covenants with, the Company and the Trustee that the Owner will not transfer such Certificates to any Plan or person unless either such Plan or person meets the requirements set forth in either (a) or (b) above.

Capitalized terms used but not defined herein shall have the meanings assigned in the Pooling and Servicing Agreement.

IN WITNESS WHEREOF, the Investor has caused this instrument to be executed on its behalf, pursuant to authority of its Board of Directors, by its [Title of Officer] this ____ day of _________, 20__.

[NAME OF INVESTOR]

By:

[Name of Officer]

[Title of Officer]

[Address of Investor for receipt of distributions]

Address of Investor for receipt of tax information:

Personally appeared before me the above-named [Name of Officer], known or proved to me to be the same person who executed the foregoing instrument and to be the [Title of Officer] of the Investor, and acknowledged to me that he executed the same as his free act and deed and the free act and deed of the Investor.

Subscribed and sworn before me this ___ day of _________, 20___.

NOTARY PUBLIC

COUNTY OF

STATE OF

My commission expires the ___ day of ___________________, 20___.

EXHIBIT F-1

FORM OF INVESTMENT LETTER (NON-RULE 144A)

______________,200___

Structured Asset Mortgage Investments II Inc.

000 Xxxxxxx Xxxxxx

Xxx Xxxx, Xxx Xxxx 00000

Deutsche Bank National Trust Company

0000 X. Xx. Xxxxxx Xxxxx

Xxxxx Xxx, Xxxxxxxxxx 00000

Attention: MortgageIT Trust 2005-AR1

Re:	MortgageIT Trust 2005-AR1
	Mortgage Pass-Through Certificates, Series 2005-AR1

Ladies and Gentlemen:

______________ (the “Purchaser”) intends to purchase from ______________ (the “Seller”) $_________ initial Current Principal Amount of Mortgage Pass-Through Certificates, Series 2005-AR, Class _____ (the “Certificates”), issued pursuant to the Pooling and Servicing Agreement (the “Pooling and Servicing Agreement”), dated as of November 1, 2005 among Structured Asset Mortgage Investments II Inc., as depositor (the “Seller”), MortgageIT, Inc., as servicer and seller and Deutsche Bank National Trust Company, as trustee (the “Trustee”). All terms used herein and not otherwise defined shall have the meanings set forth in the Pooling and Servicing Agreement. The Purchaser hereby certifies, represents and warrants to, and covenants with, the Seller and the Trustee that:

1. The Purchaser understands that (a) the Certificates have not been and will not be registered or qualified under the Securities Act of 1933, as amended (the “Act”) or any state securities law, (b) the Seller is not required to so register or qualify the Certificates, (c) the Certificates may be resold only if registered and qualified pursuant to the provisions of the Act or any state securities law, or if an exemption from such registration and qualification is available, (d) the Pooling and Servicing Agreement contains restrictions regarding the transfer of the Certificates and (e) the Certificates will bear a legend to the foregoing effect.

2. The Purchaser is acquiring the Certificates for its own account for investment only and not with a view to or for sale in connection with any distribution thereof in any manner that would violate the Act or any applicable state securities laws.

3. The Purchaser is (a) a substantial, sophisticated institutional investor having such knowledge and experience in financial and business

matters, and, in particular, in such matters related to securities similar to the Certificates, such that it is capable of evaluating the merits and risks of investment in the Certificates, (b) able to bear the economic risks of such an investment and (c) an “accredited investor” within the meaning of Rule 501 (a) promulgated pursuant to the Act.

4. The Purchaser has been furnished with, and has had an opportunity to review (a) a copy of the Pooling and Servicing Agreement and (b) such other information concerning the Certificates, the Mortgage Loans and the Seller as has been requested by the Purchaser from the Seller or the Seller and is relevant to the Purchaser’s decision to purchase the Certificates. The Purchaser has had any questions arising from such review answered by the Seller or the Seller to the satisfaction of the Purchaser.

5. The Purchaser has not and will not nor has it authorized or will it authorize any person to (a) offer, pledge, sell, dispose of or otherwise transfer any Certificate, any interest in any Certificate or any other similar security to any person in any manner, (b) solicit any offer to buy or to accept a pledge, disposition of other transfer of any Certificate, any interest in any Certificate or any other similar security from any person in any manner, (c) otherwise approach or negotiate with respect to any Certificate, any interest in any Certificate or any other similar security with any person in any manner, (d) make any general solicitation by means of general advertising or in any other manner or (e) take any other action, that (as to any of (a) through (e) above) would constitute a distribution of any Certificate under the Act, that would render the disposition of any Certificate a violation of Section 5 of the Act or any state securities law, or that would require registration or qualification pursuant thereto. The Purchaser will not sell or otherwise transfer any of the Certificates, except in compliance with the provisions of the Pooling and Servicing Agreement.

6. The Purchaser (if the Certificate is not rated at least “BBB-” or its equivalent by Fitch, S&P or Moody’s):

(a) is not an employee benefit or other plan subject to the prohibited transaction provisions of the Employee Retirement Income Security Act of 1974, as amended ("ERISA"), or Section 4975 of the Internal Revenue Code of 1986, as amended (a "Plan"), or any other person (including an investment manager, a named fiduciary or a trustee of any Plan) acting, directly or indirectly, on behalf of or purchasing any Certificate with "plan assets" of any Plan within the meaning of the Department of Labor ("DOL") regulation at 29 C.F.R. §2510.3-101; or

(b) is an insurance company, the source of funds to be used by it to purchase the Certificates is an “insurance company general account” (within the meaning of DOL Prohibited Transaction Class Exemption (“PTCE”) 95-60), and the purchase is being made in reliance upon the availability of the exemptive relief afforded under Sections I and III of PTCE 95-60.]

In addition, the Purchaser hereby certifies, represents and warrants to, and covenants with, the Company and the Trustee that the Purchaser will not transfer such Certificates to any Plan or person unless such Plan or person meets the requirements set forth in either 6(a) or (b) above.

	Very truly yours, [PURCHASER]

	By: Name: Title:

EXHIBIT F-2

[FORM OF RULE 144A INVESTMENT REPRESENTATION]

Description of Rule 144A Securities, including numbers:

The undersigned seller, as registered holder (the “Seller”), intends to transfer the Rule 144A Securities described above to the undersigned buyer (the “Buyer”).

In connection with such transfer and in accordance with the agreements pursuant to which the Rule 144A Securities were issued, the Seller hereby certifies the following facts: Neither the Seller nor anyone acting on its behalf has offered, transferred, pledged, sold or otherwise disposed of the Rule 144A Securities, any interest in the Rule 144A Securities or any other similar security to, or solicited any offer to buy or accept a transfer, pledge or other disposition of the Rule 144A Securities, any interest in the Rule 144A Securities or any other similar security from, or otherwise approached or negotiated with respect to the Rule 144A Securities, any interest in the Rule 144A Securities or any other similar security with, any person in any manner, or made any general solicitation by means of general advertising or in any other manner, or taken any other action, that would constitute a distribution of the Rule 144A Securities under the Securities Act of 1933, as amended (the “1933 Act”), or that would render the disposition of the Rule 144A Securities a violation of Section 5 of the 1933 Act or require registration pursuant thereto, and that the Seller has not offered the Rule 144A Securities to any person other than the Buyer or another “qualified institutional buyer” as defined in Rule 144A under the 1933 Act.

The Buyer warrants and represents to, and covenants with, the Seller, the Trustee and the Servicer (as defined to the Pooling and Servicing Agreement, dated as of November 1, 2005 (the “Agreement”), among the Company, MortgageIT, Inc. and Deutsche Bank National Trust Company, as trustee (the “Trustee”)) as follows:

The Buyer understands that the Rule 144A Securities have not been registered under the 1933 Act or the securities laws of any state.

The Buyer considers itself a substantial, sophisticated institutional investor having such knowledge and experience in financial and business matters that it is capable of evaluating the merits and risks of investment in the Rule 144A Securities.

The Buyer has been furnished with all information regarding the Rule 144A Securities that it

has requested from the Seller, the Trustee or the Servicer.

Neither the Buyer nor anyone acting on its behalf has offered, transferred, pledged, sold or otherwise disposed of the Rule 144A Securities, any interest in the Rule 144A Securities or any other similar security to, or solicited any offer to buy or accept a transfer, pledge or other disposition of the Rule 144A Securities, any interest in the Rule 144A Securities or any other similar security from, or otherwise approached or negotiated with respect to the Rule 144A Securities, any interest in the Rule 144A Securities or any other similar security with, any person in any manner, or made any general solicitation by means of general advertising or in any other manner, or taken any other action, that would constitute a distribution of the Rule 144A Securities under the 1933 Act or that would render the disposition of the Rule 144A Securities a violation of Section 5 of the 1933 Act or require registration pursuant thereto, nor will it act, nor has it authorized or will it authorize any person to act, in such manner with respect to the Rule 144A Securities.

The Buyer is a “qualified institutional buyer” as that term is defined in Rule 144A under the 1933 Act and has completed either of the forms of certification to that effect attached hereto as Annex 1 or Annex 2. The Buyer is aware that the sale to it is being made in reliance on Rule 144A. The Buyer is acquiring the Rule 144A Securities for its own account or the accounts of other qualified institutional buyers, understands that such Rule 144A Securities may be resold, pledged or transferred only (i) to a person reasonably believed to be a qualified institutional buyer that purchases for its own account or for the account of a qualified institutional buyer to whom notice is given that the resale, pledge or transfer is being made in reliance on Rule 144A, or (ii) pursuant to another exemption from registration under the 1933 Act.

[3. The Buyer (if the Rule 144A Securities are not rated at least “BBB-” or its equivalent by Fitch, S&P or Xxxxx’x):

is not an employee benefit or other plan subject to the prohibited transaction provisions of the Employee Retirement Income Security Act of 1974, as amended (“ERISA”), or Section 4975 of the Internal Revenue Code of 1986, as amended (a “Plan”), or any other person (including an investment manager, a named fiduciary or a trustee of any Plan) acting, directly or indirectly, on behalf of or purchasing any Certificate with “plan assets” of any Plan within the meaning of the Department of Labor (“DOL”) regulation at 29 C.F.R. § 2510.3-101; or

is an insurance company, the source of funds to be used by it to purchase the Certificates is an “insurance company general account” (within the meaning of DOL Prohibited Transaction Class Exemption (“PTCE”) 95-60), and the purchase is being made in reliance upon the availability of the exemptive relief afforded under Sections I and III of PTCE 95-60.]

4. This document may be executed in one or more counterparts and by the different parties hereto on separate counterparts, each of which, when so executed, shall be deemed to be an original; such counterparts, together, shall constitute one and the same document.

IN WITNESS WHEREOF, each of the parties has executed this document as of the date set forth below.

Print Name of Seller	Print Name of Buyer
By: Name: Title:	By: Name: Title:
Taxpayer Identification	Taxpayer Identification:
No.	No.
Date:	Date:

ANNEX 1 TO EXHIBIT F

QUALIFIED INSTITUTIONAL BUYER STATUS UNDER SEC RULE 144A

[For Buyers Other Than Registered Investment Companies]

The undersigned hereby certifies as follows in connection with the Rule 144A Investment Representation to which this Certification is attached:

As indicated below, the undersigned is the President, Chief Financial Officer, Senior Vice President or other executive officer of the Buyer.

In connection with purchases by the Buyer, the Buyer is a “qualified institutional buyer” as that term is defined in Rule 144A under the Securities Act of 1933 (“Rule 144A”) because (i) the Buyer owned and/or invested on a discretionary basis $ in securities (except for the excluded securities referred to below) as of the end of the Buyer’s most recent fiscal year (such balance being calculated in accordance with Rule 144A) and (ii) the Buyer satisfies the criteria in the category marked below.

Corporation, etc. The Buyer is a corporation (other than a bank, savings and loan association or similar institution), Massachusetts or similar business trust, partnership, or charitable organization described in Section 501(c)(3) of the Internal Revenue Code.

Bank. The Buyer (a) is a national bank or banking institution organized under the laws of any State, territory or the District of Columbia, the business of which is substantially confined to banking and is supervised by the State or territorial banking commission or similar official or is a foreign bank or equivalent institution, and (b) has an audited net worth of at least $25,000,000 as demonstrated in its latest annual financial statements, a copy of which is attached hereto.

Savings and Loan. The Buyer (a) is a savings and loan association, building and loan association, cooperative bank, homestead association or similar institution, which is supervised and examined by a State or Federal authority having supervision over any such institutions or is a foreign savings and loan association or equivalent institution and (b) has an audited net worth of at least $25,000,000 as demonstrated in its latest annual financial statements.

Broker-Dealer. The Buyer is a dealer registered pursuant to Section 15 of the Securities Exchange Act of 1934.

Insurance Company. The Buyer is an insurance company whose primary and predominant business activity is the writing of insurance or the reinsuring of risks underwritten by insurance companies and which is subject to supervision by the insurance commissioner or a similar official or agency of a State or territory or the District of Columbia.

State or Local Plan. The Buyer is a plan established and maintained by a State, its political subdivisions, or any agency or instrumentality of the State or its political subdivisions, for the benefit of its employees.

ERISA Plan. The Buyer is an employee benefit plan within the meaning of Title I of the Employee Retirement Income Security Act of 1974.

Investment Adviser. The Buyer is an investment adviser registered under the Investment Advisers Act of 1940.

SBIC. The Buyer is a Small Business Investment Company licensed by the U.S. Small Business Administration under Section 301(c) or (d) of the Small Business Investment Act of 1958.

Business Development Company. The Buyer is a business development company as defined in Section 202(a)(22) of the Investment Advisers Act of 1940.

Trust Fund. The Buyer is a trust fund whose trustee is a bank or trust company and whose participants are exclusively (a) plans established and maintained by a State, its political subdivisions, or any agency or instrumentality of the State or its political subdivisions, for the benefit of its employees, or (b) employee benefit plans within the meaning of Title I of the Employee Retirement Income Security Act of 1974, but is not a trust fund that includes as participants individual retirement accounts or H.R. 10 plans.

The term “securities” as used herein does not include (i) securities of issuers that are affiliated with the Buyer, (ii) securities that are part of an unsold allotment to or subscription by the Buyer, if the Buyer is a dealer, (iii) bank deposit notes and certificates of deposit, (iv) loan participations, (v) repurchase agreements, (vi) securities owned but subject to a repurchase agreement and (vii) currency, interest rate and commodity swaps.

For purposes of determining the aggregate balance of securities owned and/or invested on a discretionary basis by the Buyer, the Buyer used the cost of such securities to the Buyer and did not include any of the securities referred to in the preceding paragraph. Further, in determining such aggregate balance, the Buyer may have included securities owned by subsidiaries of the Buyer, but only if such subsidiaries are consolidated with the Buyer in its financial statements prepared in accordance with generally accepted accounting principles and if the investments of such subsidiaries are managed under the Buyer’s direction. However, such securities were not included if the Buyer is a majority-owned, consolidated subsidiary of another enterprise and the Buyer is not itself a reporting company under the Securities Exchange Act of 1934.

The Buyer acknowledges that it is familiar with Rule 144A and understands that the seller to it and other parties related to the Certificates are relying and will continue to rely on the statements made herein because one or more sales to the Buyer may be in reliance on Rule 144A.

		Will the Buyer be purchasing the Rule 144A
Yes	No	Securities only for the Buyer’s own account?

If the answer to the foregoing question is “no”, the Buyer agrees that, in connection with any purchase of securities sold to the Buyer for the account of a third party (including any separate account) in reliance on Rule 144A, the Buyer will only purchase for the account of a third party that at the time is a “qualified institutional buyer” within the meaning of Rule 144A. In addition, the Buyer agrees that the Buyer will not purchase securities for a third party unless the Buyer has obtained a current representation letter from such third party or taken other appropriate steps contemplated by Rule 144A to conclude that such third party independently meets the definition of “qualified institutional buyer” set forth in Rule 144A.

The Buyer will notify each of the parties to which this certification is made of any changes in the information and conclusions herein. Until such notice is given, the Buyer’s purchase of Rule 144A Securities will constitute a reaffirmation of this certification as of the date of such purchase.

Print Name of Buyer

By:
     Name:
     Title:

Date:

EXHIBIT G

FORM OF CUSTODIAL AGREEMENT

THIS CUSTODIAL AGREEMENT (as amended and supplemented from time to time, the “Agreement”), dated as of November 21, 2005, by and among DEUTSCHE BANK NATIONAL TRUST COMPANY, not individually but solely as trustee under the Pooling and Servicing Agreement defined below (including its successors under the Pooling and Servicing Agreement defined below, the “Trustee”), STRUCTURED ASSET MORTGAGE INVESTMENTS II INC., as company (together with any successor in interest, the “Company”), XXXXX FARGO BANK, NATIONAL ASSOCIATION, as master servicer and securities administrator (together with any successor in interest or successor under the Pooling and Servicing Agreement referred to below, the “Master Servicer”) and DEUTSCHE BANK NATIONAL TRUST COMPANY, as custodian (together with any successor in interest or any successor appointed hereunder, the “Custodian”).

WITNESSETH THAT:

WHEREAS, the Company, MortgageIT, Inc., the Master Servicer and the Trustee have entered into a Pooling and Servicing Agreement, dated as of November 1, 2005, relating to the issuance of MortgageIT Trust 2005-AR1, Mortgage Pass-Through Certificates, Series 2005-AR1 (as in effect on the date of this agreement and as amended and supplemented from time to time, the "Pooling and Servicing Agreement"); and

WHEREAS, the Custodian has agreed to act as agent for the Trustee for the purposes of receiving and holding certain documents and other instruments delivered by the Company or the Master Servicer under the Pooling and Servicing Agreement and the Servicer under the Servicing Agreement, all upon the terms and conditions and subject to the limitations hereinafter set forth;

NOW, THEREFORE, in consideration of the premises and the mutual covenants and agreements hereinafter set forth, the Trustee, the Company, the Master Servicer and the Custodian hereby agree as follows:

ARTICLE I.

DEFINITIONS

Capitalized terms used in this Agreement and not defined herein shall have the meanings assigned in the Pooling and Servicing Agreement, unless otherwise required by the context herein.

ARTICLE II.

CUSTODY OF MORTGAGE DOCUMENTS

Section 2.1. Custodian to Act as Agent: Acceptance of Mortgage Files. The Custodian, as the duly appointed agent of the Trustee for these purposes, acknowledges (subject to any exceptions noted in the Initial Certification referred to in Section 2.3(a)) receipt of the

Mortgage Files relating to the Mortgage Loans identified on the schedule attached hereto (the “Mortgage Files”) and declares that it holds and will hold such Mortgage Files as agent for the Trustee, in trust, for the use and benefit of all present and future Certificateholders.

Section 2.2. Recordation of Assignments. If any Mortgage File includes one or more assignments of Mortgage to the Trustee in a state which is specifically excluded from the Opinion of Counsel delivered by the Seller to the Trustee (with a copy to the Custodian) pursuant to the provisions of Section 2.01 of the Pooling and Servicing Agreement, each such assignment shall be delivered by the Custodian to the Company for the purpose of recording it in the appropriate public office for real property records, and the Company, at no expense to the Custodian, shall promptly cause to be recorded in the appropriate public office for real property records each such assignment of Mortgage and, upon receipt thereof from such public office, shall return each such assignment of Mortgage to the Custodian.

Section 2.3.

Review of Mortgage Files.

(1) On or prior to the Closing Date, in accordance with Section 2.02 of the Pooling and Servicing Agreement, the Custodian shall deliver to the Trustee an Initial Certification in the form annexed hereto as Exhibit One evidencing receipt (subject to any exceptions noted therein) of a Mortgage File for each of the Mortgage Loans listed on the Schedule attached hereto (the A Mortgage Loan Schedule@).

(2) Within 90 days of the Closing Date, the Custodian agrees, for the benefit of Certificateholders, to review, in accordance with the provisions of Section 2.02 of the Pooling and Servicing Agreement, each such document, and shall deliver to the Seller and the Trustee an Interim Certification in the form annexed hereto as Exhibit Two to the effect that all such documents have been executed and received and that such documents relate to the Mortgage Loans identified on the Mortgage Loan Schedule, except for any exceptions listed on Schedule A attached to such Interim Certification. The Custodian shall be under no duty or obligation to inspect, review or examine said documents, instruments, certificates or other papers to determine that the same are genuine, enforceable, or appropriate for the represented purpose or that they have actually been recorded or that they are other than what they purport to be on their face.

(3) Not later than 180 days after the Closing Date, the Custodian shall review the Mortgage Files as provided in Section 2.02 of the Pooling and Servicing Agreement and deliver to the Seller and the Trustee a Final Certification in the form annexed hereto as Exhibit Three evidencing the completeness of the Mortgage Files.

(4) In reviewing the Mortgage Files as provided herein and in the Pooling and Servicing Agreement, the Custodian shall make no representation as to and shall not be responsible to verify (i) the validity, legality, enforceability, due authorization, recordability, sufficiency or genuineness of any of the documents included in any Mortgage File or (ii) the collectibility, insurability, effectiveness or suitability of any of the documents in any Mortgage File.

Upon receipt of written request from the Trustee, the Custodian shall as soon as

practicable supply the Trustee with a list of all of the documents relating to the Mortgage Loans missing from the Mortgage Files.

Section 2.4. Notification of Breaches of Representations and Warranties. Upon discovery by the Custodian of a breach of any representation or warranty made by the Company as set forth in the Pooling and Servicing Agreement with respect to a Mortgage Loan relating to a Mortgage File, the Custodian shall give prompt written notice to the Company, the Servicer and the Trustee.

Section 2.5. Custodian to Cooperate: Release of Mortgage Files. Upon receipt of notice from the Trustee that the Mortgage Loan Seller has repurchased a Mortgage Loan pursuant to Article II of the Pooling and Servicing Agreement, and a Request for Release certifying that the purchase price therefore has been deposited in the Master Servicer Collection Account or the Distribution Account, then the Custodian agrees to promptly release to the Mortgage Loan Seller the related Mortgage File.

Upon the Custodian=s receipt of a request for release (a A Request for Release@) substantially in the form of Exhibit D to the Pooling and Servicing Agreement signed by a Servicing Officer of the Servicer stating that it has received payment in full of a Mortgage Loan or that payment in full will be escrowed in a manner customary for such purposes, the Custodian agrees promptly to release to the Servicer the related Mortgage File. The Company shall deliver to the Custodian and the Custodian agrees to accept the Mortgage Note and other documents constituting the Mortgage File with respect to any Substitute Mortgage Loan.

From time to time as is appropriate for the servicing or foreclosure of any Mortgage Loan, including, for this purpose, collection under any Primary Mortgage Insurance Policy, the Servicer shall deliver to the Custodian a Request for Release signed by a Servicing Officer requesting that possession of all of the Mortgage File be released to the Servicer and certifying as to the reason for such release and that such release will not invalidate any insurance coverage provided in respect of the Mortgage Loan under any of the Insurance Policies. Upon receipt of the foregoing, the Custodian shall deliver the Mortgage File to the Servicer. The Servicer shall cause each Mortgage File or any document therein so released to be returned to the Custodian when the need therefore by the Servicer no longer exists, unless (i) the Mortgage Loan has been liquidated and the Liquidation Proceeds relating to the Mortgage Loan have been deposited in the Distribution Account or (ii) the Mortgage File or such document has been delivered to an attorney, or to a public trustee or other public official as required by law, for purposes of initiating or pursuing legal action or other proceedings for the foreclosure of the Mortgaged Property either judicially or non-judicially, and the Servicer has delivered to the Custodian a certificate of a Servicing Officer certifying as to the name and address of the Person to which such Mortgage File or such document was delivered and the purpose or purposes of such delivery.

At any time that the Servicer is required to deliver to the Custodian a Request for Release, the Servicer shall deliver two copies of the Request for Release if delivered in hard copy or the Servicer may furnish such Request for Release electronically to the Custodian, in which event the Servicing Officer transmitting the same shall be deemed to have signed the

Request for Release. In connection with any Request for Release of a Mortgage File because of a repurchase of a Mortgage Loan, such Request for Release shall be accompanied by an assignment of mortgage, without recourse, representation or warranty from the Trustee to the Mortgage Loan Seller and the related Mortgage Note shall be endorsed without recourse, representation or warranty by the Trustee (unless such Mortgage Note was a MERS Loan and not endorsed to the Trustee) and be returned to the Mortgage Loan Seller. In connection with any Request for Release of a Mortgage File because of the payment in full of a Mortgage Loan, such Request for Release shall be accompanied by a certificate of satisfaction or other similar instrument to be executed by or on behalf of the Trustee and returned to the Servicer.

Section 2.6. Assumption Agreements. In the event that any assumption agreement, substitution of liability agreement or sale of servicing agreement is entered into with respect to any Mortgage Loan subject to this Agreement in accordance with the terms and provisions of the Pooling and Servicing Agreement, the Master Servicer, to the extent provided in the Servicing Agreement, shall cause the Servicer to notify the Custodian that such assumption or substitution agreement has been completed by forwarding to the Custodian the original of such assumption or substitution agreement, which shall be added to the related Mortgage File and, for all purposes, shall be considered a part of such Mortgage File to the same extent as all other documents and instruments constituting parts thereof.

ARTICLE III.

CONCERNING THE CUSTODIAN

Section 3.1. Custodian as Bailee and Agent of the Trustee. With respect to each Mortgage Note, Mortgage and other documents constituting each Mortgage File which are delivered to the Custodian, the Custodian is exclusively the bailee and agent of the Trustee and has no instructions to hold any Mortgage Note or Mortgage for the benefit of any person other than the Trustee and the Certificateholders and undertakes to perform such duties and only such duties as are specifically set forth in this Agreement. Except upon compliance with the provisions of Section 2.5 of this Agreement, no Mortgage Note, Mortgage or Mortgage File shall be delivered by the Custodian to the Company, the Servicer or the Master Servicer or otherwise released from the possession of the Custodian.

Section 3.2.

Reserved.

Section 3.3. Custodian May Own Certificates. The Custodian in its individual or any other capacity may become the owner or pledgee of Certificates with the same rights it would have if it were not Custodian.

Section 3.4. Master Servicer to Pay Custodian's Fees and Expenses; Indemnification. The Custodian and its directors, affiliates, officers, agents and employees shall be indemnified by the Trust and held harmless against any and all liabilities, obligations, losses, damages, suits, costs and expenses that may be imposed on, incurred by, or asserted against it or them in any way arising out of this Custodial Agreement or any action taken or not taken by then hereunder, unless such liabilities, obligations, losses, damages, suits, costs and expenses were imposed on, incurred by, or asserted against the Custodian because a breach by the Custodian of its obligations hereunder, which breach was caused by negligence, lack of

good faith or willful misconduct on the part of the Custodian or any of its directors, affiliates, officers, agents and employees. The right to indemnity under this Section 3.4 shall survive the termination of this Agreement or the earlier resignation or removal of the Custodian.

Section 3.5. Custodian May Resign; Trustee May Remove Custodian. The Custodian may resign from the obligations and duties hereby imposed upon it as such obligations and duties relate to its acting as Custodian of the Mortgage Loans. Upon receiving such notice of resignation, the Trustee shall either take custody of the Mortgage Files itself and give prompt notice thereof to the Company, the Master Servicer and the Custodian, or promptly appoint a successor Custodian by written instrument, in duplicate, one copy of which instrument shall be delivered to the resigning Custodian and one copy to the successor Custodian. If the Trustee shall not have taken custody of the Mortgage Files and no successor Custodian shall have been so appointed and have accepted appointment within 30 days after the giving of such notice of resignation, the resigning Custodian may petition any court of competent jurisdiction for the appointment of a successor Custodian.

The Trustee may remove the Custodian at any time with the consent of the Master Servicer. In such event, the Trustee shall appoint, or petition a court of competent jurisdiction to appoint, a successor Custodian hereunder. Any successor Custodian shall be a depository institution subject to supervision or examination by federal or state authority, shall be able to satisfy the other requirements contained in Section 3.7 and shall be unaffiliated with the Servicer or the Company.

Any resignation or removal of the Custodian and appointment of a successor Custodian pursuant to any of the provisions of this Section 3.5 shall become effective upon acceptance of appointment by the successor Custodian. The Trustee shall give prompt notice to the Company and the Master Servicer of the appointment of any successor Custodian. No successor Custodian shall be appointed by the Trustee without the prior approval of the Company and the Master Servicer.

Section 3.6. Merger or Consolidation of Custodian. Any Person into which the Custodian may be merged or converted or with which it may be consolidated, or any Person resulting from any merger, conversion or consolidation to which the Custodian shall be a party, or any Person succeeding to the business of the Custodian, shall be the successor of the Custodian hereunder, without the execution or filing of any paper or any further act on the part of any of the parties hereto, anything herein to the contrary notwithstanding.

Section 3.7. Representations of the Custodian. The Custodian hereby represents that it is a depository institution subject to supervision or examination by a federal or state authority, has a combined capital and surplus of at least $15,000,000 and is qualified to do business in the jurisdictions in which it will hold any Mortgage File.

Section 3.8.

Rights of the Custodian.

(1) The Custodian shall be under no duty or obligation to inspect, review or examine the Mortgage Files to determine that the contents thereof are appropriate for the

represented purpose or that they have been actually recorded or that they are other than what they purport to be on their face.

(2) The Custodian shall not be responsible for preparing or filing any reports or returns relating to federal, state or local income taxes with respect to this Agreement, other than for the Custodian’s compensation or for reimbursement of its expenses.

(3) The Custodian shall not be responsible or liable for, and makes no representation or warranty with respect to, the validity, adequacy, perfection or priority or any lien upon or security interest in any Mortgage File.

(4) Any other provision of this Agreement to the contrary notwithstanding, the Custodian shall have no notice, and shall not be bound by any of the terms and conditions of any other document or agreement executed or delivered in connection with, or intended to control any part of, the transactions anticipated by or referred to in this Agreement unless the Custodian is a signatory party to that document or agreement.

(5) The duties and obligations of the Custodian shall only be such as are expressly set forth in this Agreement or as set forth in a written amendment to this Agreement executed by the parties hereto or their successors and assigns. In the event that any provision of this Agreement implies or requires that action or forbearance be taken by a party, but is silent as to which party has the duty to act or refrain from acting, the parties agree that the Custodian shall not be the party required to take the action or refrain from acting. In no event shall the Custodian have any responsibility to ascertain or take action except as expressly provided herein.

(6) The Custodian may consult with counsel selected by the Custodian with regard to legal questions arising out of or in connection with this Agreement, and the written opinion of such counsel shall be full and complete authorization and protection in respect of any action reasonably taken, omitted or suffered by the Custodian in good faith and in accordance therewith.

(7) No provision of this Agreement shall require the Custodian to expend or risk its own funds, to take any legal action hereunder or to otherwise incur any financial liability in the performance of any of its duties hereunder or in the exercise of any of its rights and powers, if, in its sole judgment, it shall believe that repayment of such funds or indemnity reasonably satisfactory to it against such risk or liability is not assured to it.

(8) The Custodian will be regarded as making no representations and having no responsibilities (except as expressly set forth herein) as to the validity, sufficiency, value, genuineness, ownership or transferability of any of the Mortgage Loans, and will not be required to and will not make any representations as to the validity, value or genuineness of Mortgage Loans.

(9) The Custodian may rely on and shall be protected in acting in good faith upon any certificate, instrument, opinion, notice, magnetic tape, letter, telegram or other document, or any security, delivered to it and in good faith believed by it to be genuine and to

have been signed by the proper party or parties; but in the case of any request, instruction, document or certificate which by any provision hereof is specifically required to be furnished to the Custodian, the Custodian shall be under a duty to examine the same to determine whether or not it conforms prima facie to the requirements of this Custodial Agreement. The Custodian may rely on and shall be protected in acting in good faith upon the written instructions of the Indenture trustee, the Master Servicer and the Servicer.

(10) The Custodian shall not be liable for any error of judgment, or for any act done or step taken or omitted by it, in good faith, or for any mistake of fact or law, or for anything that it may do or refrain from doing in connection therewith, except in the case of negligent performance or omission.

(11) The Custodian shall have no obligation to verify the receipt of any such documents the existence of which was not made known in writing to the Custodian.

(12) The Custodian shall have no obligation to determine whether the recordation of any document is necessary.

In no event shall the Custodian or its directors, affiliates, officers, agents, and employees be held liable for any special, indirect or consequential damages resulting from any action taken or omitted to be taken by it or them hereunder or in connection herewith even if advised of the possibility of such damages

ARTICLE IV.

MISCELLANEOUS PROVISIONS

Section 4.1. Notices. All notices, requests, consents and demands and other communications required under this Agreement or pursuant to any other instrument or document delivered hereunder shall be in writing and, unless otherwise specifically provided, may be delivered personally, by telegram or telex, or by registered or certified mail, postage prepaid, return receipt requested, at the addresses specified on the signature page hereof (unless changed by the particular party whose address is stated herein by similar notice in writing), in which case the notice will be deemed delivered when received.

Section 4.2. Amendments. No modification or amendment of or supplement to this Agreement shall be valid or effective unless the same is in writing and signed by all parties hereto; provided, however, an Opinion of Counsel is provided to the Trustee, at the expense of the requesting party, that such modification, amendment or supplement has no adverse effect on the Noteholders. Neither the Company, the Master Servicer nor the Trustee shall enter into any amendment hereof except as permitted by the Pooling and Servicing Agreement. The Trustee shall give prompt notice to the Custodian of any amendment or supplement to the Pooling and Servicing Agreement and furnish the Custodian with written copies thereof.

Section 4.3. GOVERNING LAW. THIS AGREEMENT SHALL BE DEEMED A CONTRACT MADE UNDER THE LAWS OF THE STATE OF NEW YORK AND SHALL BE CONSTRUED AND ENFORCED IN ACCORDANCE WITH AND

GOVERNED BY THE LAWS OF THE STATE OF NEW YORK.

Section 4.4. Recordation of Agreement. To the extent permitted by applicable law, this Agreement is subject to recordation in all appropriate public offices for real property records in all the counties or other comparable jurisdictions in which any or all of the properties subject to the Mortgages are situated, and in any other appropriate public recording office or elsewhere, such recordation to be effected by the Company and at the Trust's expense, but only upon direction accompanied by an Opinion of Counsel reasonably satisfactory to the Company to the effect that the failure to effect such recordation is likely to materially and adversely affect the interests of the Certificateholders.

For the purpose of facilitating the recordation of this Agreement as herein provided and for other purposes, this Agreement may be executed simultaneously in any number of counterparts, each of which counterparts shall be deemed to be an original, and such counterparts shall constitute but one and the same instrument.

Section 4.5. Severability of Provisions. If any one or more of the covenants, agreements, provisions or terms of this Agreement shall be for any reason whatsoever held invalid, then such covenants, agreements, provisions or terms shall be deemed severable from the remaining covenants, agreements, provisions or terms of this Agreement and shall in no way affect the validity or enforceability of the other provisions of this Agreement or of the Certificates or the rights of the holders thereof.

Section 4.6. Additional Terms Regarding Trustee. The Trustee shall have only such duties and obligations under this Agreement as are expressly set forth herein, and no implied duties on its part shall be read into this Agreement. In entering into and acting under this Agreement, the Trustee shall be entitled to all of the rights, immunities, indemnities and other protections set forth in Article IX of the Pooling and Servicing Agreement.

IN WITNESS WHEREOF, this Agreement is executed as of the date first above written.

Address:

0000 X. Xx. Xxxxxx Xxxxx

Xxxxx Xxx, Xxxxxxxxxx 00000
Attention: Trust Administration - MG05A1

DEUTSCHE BANK NATIONAL TRUST COMPANY, as Trustee

By:

Name:

Title:

Address:

000 Xxxxxxx Xxxxxx

Xxx Xxxx, Xxx Xxxx 00000

STRUCTURED ASSET MORTGAGE INVESTMENTS II INC.

By:

Name: Xxxxx Xxxxxxxxxxx

Title: Vice President

Address:

0000 Xxx Xxxxxxxxx

Xxxxxxxx, Xxxxxxxx 00000

Attention: MortgageIT Trust 2005-AR1

XXXXX FARGO BANK, NATIONAL ASSOCIATION, as Master Servicer

By:

Name:

Title:

Address:

0000 X. Xx. Xxxxxx Xxxxx

Xxxxx Xxx, Xxxxxxxxxx 00000
Attention: Trust Administration - MG05A1

DEUTSCHE BANK NATIONAL TRUST COMPANY, as Custodian

By:

Name:

Title:

By:

Name:

Title:

STATE OF CALIFORNIA	)
	)ss.:
COUNTY OF ORANGE	)

On the __th day of November, 2005, before me, a notary public in and for said State, personally appeared _______________, known to me to be a _________________of Deutsche Bank National Trust Company, a national banking association that executed the within instrument, and also known to me to be the person who executed it on behalf of said association and acknowledged to me that such association executed the within instrument.

IN WITNESS WHEREOF, I have hereunto set my hand and affixed my official seal the day and year in this certificate first above written.

____________________________________

Notary Public

[SEAL]

STATE OF TEXAS	)
	)ss.:
COUNTY OF __________	)

On the __th day of November, 2005, before me, a notary public in and for said State, personally appeared __________________, known to me to be a/an _____________________ of Deutsche Bank National Trust Company, a national banking association that executed the within instrument, and also known to me to be the person who executed it on behalf of said national banking association, and acknowledged to me that such national banking association executed the within instrument.

IN WITNESS WHEREOF, I have hereunto set my hand and affixed my official seal the day and year in this certificate first above written.

____________________________________

Notary Public

[SEAL]

STATE OF NEW YORK	)
	)ss.:
COUNTY OF NEW YORK	)

On the __th day of November, 2005, before me, a notary public in and for said State, personally appeared Xxxxx Xxxxxxxxxxx, known to me to be a Vice President of Structured Asset Mortgage Investments II Inc., one of the corporations that executed the within instrument, and also known to me to be the person who executed it on behalf of said corporation, and acknowledged to me that such corporation executed the within instrument.

IN WITNESS WHEREOF, I have hereunto set my hand and affixed my official seal the day and year in this certificate first above written.

____________________________________

Notary Public

[Notarial Seal]

STATE OF NEW YORK	)
	)ss.:
COUNTY OF NEW YORK	)

On the ___ day of November, 2005, before me, a notary public in and for said State, personally appeared __________________, known to me to be a/an _____________________ of Xxxxx Fargo Bank, National Association, a national banking association that executed the within instrument, and also known to me to be the person who executed it on behalf of said national banking association, and acknowledged to me that such national banking association executed the within instrument.

IN WITNESS WHEREOF, I have hereunto set my hand and affixed my official seal the day and year in this certificate first above written.

____________________________________

Notary Public

[Notarial Seal]

EXHIBIT ONE

FORM OF CUSTODIAN INITIAL CERTIFICATION

__, 20__

Deutsche Bank National Trust Company

0000 X. Xx. Xxxxxx Xxxxx

Xxxxx Xxx, Xxxxxxxxxx 00000

Structured Asset Mortgage Investments II Inc.

000 Xxxxxxx Xxxxxx

Xxx Xxxx, Xxx Xxxx 00000

Attention: Structured Asset Mortgage Investments II Inc.

MortgageIT Trust 2005-AR1, Mortgage Pass-Through Certificates, Series 2005-AR1

Re:	Custodial Agreement, dated as of November 21, 2005, by and among Deutsche Bank National Trust Company, Structured Asset Mortgage Investments II Inc. and Xxxxx Fargo Bank, National Association relating to MortgageIT Trust 2005-AR1, Mortgage Pass-Through Certificates, Series 2005-AR1

Ladies and Gentlemen:

In accordance with Section 2.3 of the above-captioned Custodial Agreement, and subject to Section 2.02 of the Pooling and Servicing Agreement, the undersigned, as Custodian, hereby certifies that it has received a Mortgage File (which contains an original Mortgage Note or lost note affidavit) to the extent required in Section 2.01 of the Pooling and Servicing Agreement with respect to each Mortgage Loan listed in the Mortgage Loan Schedule, with any exceptions listed on Schedule A attached hereto. The Custodian has made no independent examination of any documents contained in each Mortgage File beyond the review specifically required in the Custodial Agreement. The Custodian makes no representations as to: (i) the validity, legality, enforceability, due authorization, recordability, sufficiency or genuineness of any of the documents contained in each Mortgage File of any of the Mortgage Loans identified on the Mortgage Loan Schedule, or (ii) the collectability, perfection, priority, insurability, effectiveness or suitability of any such documents. Notwithstanding anything herein to the contrary, the Custodian has made no determination and makes no representations as to whether (i) any endorsement is sufficient to transfer all right, title and interest of the party so endorsing in and to the Mortgage Note or other document or (ii) any assignment is in recordable form or sufficient to effect the assignment of and transfer to the assignee thereof, under the Mortgage to which the assignment relates.

Capitalized words and phrases used herein shall have the respective meanings assigned to them in the above-captioned Custodial Agreement.

DEUTSCHE BANK NATIONAL TRUST COMPANY

By: _______________________________

Name:

Title:

EXHIBIT TWO

FORM OF CUSTODIAN INTERIM CERTIFICATION

_________, 20__

Deutsche Bank National Trust Company

0000 X. Xx. Xxxxxx Xxxxx

Xxxxx Xxx, Xxxxxxxxxx 00000

Structured Asset Mortgage Investments II Inc.

000 Xxxxxxx Xxxxxx

Xxx Xxxx, Xxx Xxxx 00000

Attention: Structured Asset Mortgage Investments II Inc.

MortgageIT Trust 2005-AR1, Mortgage Pass-Through Certificates, Series 2005-AR1

Re:	Custodial Agreement, dated as of November 21, 2005, by and among Deutsche Bank National Trust Company, Structured Asset Mortgage Investments II Inc. and Xxxxx Fargo Bank, National Association relating to MortgageIT Trust 2005-AR1, Mortgage Pass-Through Certificates, Series 2005-AR1

Ladies and Gentlemen:

In accordance with Section 2.3 of the above-captioned Custodial Agreement, the undersigned, as Custodian, hereby certifies that it has received a Mortgage File to the extent required pursuant to Section 2.01 of the Pooling and Servicing Agreement with respect to each Mortgage Loan listed in the Mortgage Loan Schedule, and it has reviewed the Mortgage File and the Mortgage Loan Schedule and has determined that: all required documents have been executed and received and that such documents related to the Mortgage Loans identified on the Mortgage Loan Schedule, with any exceptions listed on Schedule A attached hereto. The Custodian has made no independent examination of any documents contained in each Mortgage File beyond the review specifically required in the Custodial Agreement. The Custodian makes no representations as to: (i) the validity, legality, enforceability, due authorization, recordability, sufficiency or genuineness of any of the documents contained in each Mortgage File of any of the Mortgage Loans identified on the Mortgage Loan Schedule, or (ii) the collectability, perfection, priority, insurability, effectiveness or suitability of any such documents. Notwithstanding anything herein to the contrary, the Custodian has made no determination and makes no representations as to whether (i) any endorsement is sufficient to transfer all right, title and interest of the party so endorsing in and to the Mortgage Note or other document or (ii) any assignment is in recordable form or sufficient to effect the assignment of and transfer to the assignee thereof, under the Mortgage to which the assignment relates.

Capitalized words and phrases used herein shall have the respective meanings assigned to them in the above-captioned Custodial Agreement.

DEUTSCHE BANK NATIONAL TRUST COMPANY

By:

Name:

Title:

EXHIBIT THREE

FORM OF CUSTODIAN FINAL CERTIFICATION

__________, 20__

Deutsche Bank National Trust Company

0000 X. Xx. Xxxxxx Xxxxx

Xxxxx Xxx, Xxxxxxxxxx 00000

Structured Asset Mortgage Investments II Inc.

000 Xxxxxxx Xxxxxx

Xxx Xxxx, Xxx Xxxx 00000

Attention: Structured Asset Mortgage Investments II Inc.

MortgageIT Trust 2005-AR1, Mortgage Pass-Through Certificates, Series 2005-AR1

Re:	Custodial Agreement, dated as of November 21, 2005, by and among Deutsche Bank National Trust Company, Structured Asset Mortgage Investments II Inc. and Xxxxx Fargo Bank, National Association relating to MortgageIT Trust 2005-AR1, Mortgage Pass-Through Certificates, Series 2005-AR1

Ladies and Gentlemen:

In accordance with Section 2.3 of the above-captioned Custodial Agreement and subject to Section 2.02(b) of the Pooling and Servicing Agreement, the undersigned, as Custodian, hereby certifies that, subject to any exceptions listed on Schedule A attached hereto, it has received a Mortgage File with respect to each Mortgage Loan listed in the Mortgage Loan Schedule containing with respect to each such Mortgage Loan:

(i) The original Mortgage Note, endorsed without recourse (A) to the order of the Trustee or (B) in the case of a Mortgage Loan in the MERS System, in blank, and in each case showing an unbroken chain of endorsements from the originator thereof to the Person endorsing it in blank or to the Trustee or a lost note affidavit together with a copy of the related Mortgage Note;

Company, as Trustee@, with evidence of recording with respect to each Mortgage Loan in the name of the Trustee thereon;

(iv) all intervening assignments of the Security Instrument, if applicable and only to the extent available to the Seller with evidence of recording thereon;

(v) the original or a copy of the policy or certificate of primary mortgage guaranty insurance, to the extent available, if any,

(vi) the original policy of title insurance or mortgagee=s certificate of title insurance or commitment or binder for title insurance, and

(vii) originals of all modification agreements, if applicable and available.

The Custodian has made no independent examination of any documents contained in each Mortgage File beyond the review specifically required in the Custodial Agreement. The Custodian makes no representations as to: (i) the validity, legality, enforceability, due authorization, recordability, sufficiency or genuineness of any of the documents contained in each Mortgage File of any of the Mortgage Loans identified on the Mortgage Loan Schedule, or (ii) the collectability, perfection, priority, insurability, effectiveness or suitability of any such documents. Notwithstanding anything herein to the contrary, the Custodian has made no determination and makes no representations as to whether (i) any endorsement is sufficient to transfer all right, title and interest of the party so endorsing in and to the Mortgage Note or other document or (ii) any assignment is in recordable form or sufficient to effect the assignment of and transfer to the assignee thereof, under the Mortgage to which the assignment relates.

Capitalized words and phrases used herein shall have the respective meanings assigned to them in the above-captioned Custodial Agreement or in the Pooling and Servicing Agreement, as applicable.

DEUTSCHE BANK NATIONAL TRUST COMPANY

By:

Name:

Title:

EXHIBIT H-1

SERVICING AGREEMENT

(Provided Upon Request)

EXHIBIT H-2

SUBSERVICING AGREEMENT

(Provided Upon Request)

EXHIBIT I

[RESERVED]

EXHIBIT J

FORM OF MORTGAGE LOAN PURCHASE AGREEMENT

between

MORTGAGEIT, INC.

as Mortgage Loan Seller

and

STRUCTURED ASSET MORTGAGE INVESTMENTS II INC.

as Purchaser

Dated as of

November 21, 2005

Structured Asset Mortgage Investments II Inc.

MortgageIT Trust 2005-AR1

Mortgage Pass-Through Certificates, Series 2005-AR1

TABLE OF CONTENTS

	Page
SECTION 1. Definitions.	1
SECTION 2. Purchase and Sale of the Mortgage Loans and Related Rights.	3
SECTION 3. Mortgage Loan Schedules.	4
SECTION 4. Mortgage Loan Transfer.	3
SECTION 5. Examination of Mortgage Files.	3
SECTION 6. Recordation of Assignments of Mortgage.	7
SECTION 7. Representations and Warranties of Mortgage Loan Seller Concerning the
Mortgage Loans.	3
SECTION 8. Representations and Warranties Concerning the Mortgage Loan Seller.	12
SECTION 9. Representations and Warranties Concerning the Purchaser.	13
SECTION 10. Conditions to Closing.	14
SECTION 11. Fees and Expenses.	16
SECTION 12. Accountants' Letters.	17
SECTION 13. Indemnification.	17
SECTION 14. Notices.	19
SECTION 15. Transfer of Mortgage Loans.	19
SECTION 16. Termination.	3
SECTION 17. Representations, Warranties and Agreements to Survive Delivery	20
SECTION 18. Severability.	20
SECTION 19. Counterparts.	20
SECTION 20. Amendment.	3
SECTION 21. Governing Law.	20
SECTION 22. Further Assurances.	20
SECTION 23. Successors and Assigns.	20
SECTION 24. The Mortgage Loan Seller and the Purchaser.	21
SECTION 25. Entire Agreement.	21
SECTION 26. No Partnership.	21
EXHIBIT 1 CONTENTS OF MORTGAGE FILE	E-3
EXHIBIT 2 MORTGAGE LOAN SCHEDULE INFORMATION	E-2-1
EXHIBIT 3 MORTGAGE LOAN SELLER'S INFORMATION	E-3
EXHIBIT 4 PURCHASER'S INFORMATION	E-3
EXHIBIT 5 SCHEDULE OF LOST NOTES	X-0
XXXXXXX 0 Xxxxxxxx & Xxxx’s LEVELS® Glossary, Version 5.6b Revised,
Appendix E	E-6-1
SCHEDULE A REQUIRED RATINGS FOR EACH CLASS OF CERTIFICATES	A-1
SCHEDULE B MORTGAGE LOAN SCHEDULE	B-3

EXHIBITS AND SCHEDULE TO

MORTGAGE LOAN PURCHASE AGREEMENT

Exhibit 1

Contents of Mortgage File

Exhibit 2

Mortgage Loan Schedule Information

Exhibit 3

Mortgage Loan Seller's Information

Exhibit 4

Purchaser's Information

Exhibit 5

Schedule of Lost Notes

Exhibit 6

Standard & Poor’s LEVELS® Glossary, Version 5.6b Revised, Appendix E

Schedule A

Required Ratings for Each Class of Certificates

Schedule B

Mortgage Loan Schedule

MORTGAGE LOAN PURCHASE AGREEMENT

MORTGAGE LOAN PURCHASE AGREEMENT, dated as of November 21, 2005, as amended and supplemented by any and all amendments hereto (collectively, the "Agreement"), by and between MORTGAGEIT, INC., a New York corporation (the "Mortgage Loan Seller"), and STRUCTURED ASSET MORTGAGE INVESTMENTS II INC., a Delaware corporation (the "Purchaser").

Upon the terms and subject to the conditions of this Agreement, the Mortgage Loan Seller agrees to sell, and the Purchaser agrees to purchase, certain conventional, adjustable rate, negative amortization mortgage loans secured by first liens on one- to four-family residential properties (collectively, the "Mortgage Loans") as described herein. The Purchaser intends to deposit the Mortgage Loans into a trust fund (the "Trust Fund") and create MortgageIT Trust 2005-AR1, Mortgage Pass-Through Certificates, Series 2005-AR1 (the "Certificates"), under a pooling and servicing agreement, to be dated as of November 1, 2005 (the "Pooling and Servicing Agreement"), among the Purchaser, as depositor, Xxxxx Fargo Bank, National Association, as master servicer and securities administrator, Deutsche Bank National Trust Company, as trustee (the "Trustee") and the Mortgage Loan Seller, as seller.

The Purchaser has filed with the Securities and Exchange Commission (the "Commission") a registration statement on Form S-3 (Number 333-120916) relating to its Mortgage Pass-Through Certificates and the offering of certain series thereof (including certain classes of the Certificates) from time to time in accordance with Rule 415 under the Securities Act of 1933, as amended, and the rules and regulations of the Commission promulgated thereunder (the "Securities Act"). Such registration statement, when it became effective under the Securities Act, and the prospectus relating to the public offering of certain classes of the Certificates by the Purchaser (the "Public Offering"), as from time to time each is amended or supplemented pursuant to the Securities Act or otherwise, are referred to herein as the "Registration Statement" and the "Prospectus," respectively. The "Prospectus Supplement" shall mean that supplement, dated November 18, 2005 to the Prospectus, dated December 20, 2004, relating to certain classes of the Certificates. With respect to the Public Offering of certain classes of the Certificates, the Purchaser, Bear, Xxxxxxx & Co. Inc. ("Bear Xxxxxxx"), RBS Greenwich Capital ("RBS") and Credit Suisse First Boston ("CSFB"; together with RBS and Bear Xxxxxxx, the "Underwriters") have entered into a terms agreement dated as of November 18, 2005 to an underwriting agreement dated December 30, 2003, between the Purchaser and Bear Xxxxxxx (collectively, the "Underwriting Agreement").

Now, therefore, in consideration of the premises and the mutual agreements set forth herein, the parties hereto agree as follows:

SECTION 1. Definitions. Certain terms are defined herein. Capitalized terms used herein but not defined herein shall have the meanings specified in the Pooling and Servicing Agreement. The following other terms are defined as follows:

Acquisition Price: Cash in amount agreed upon by the Mortgage Loan Seller and the Purchaser.

Bear Xxxxxxx: Bear, Xxxxxxx & Co. Inc.

Closing Date: November 21, 2005.

Cut-off Date: November 1, 2005.

Cut-off Date Balance: Approximately $396,760,983.

Deleted Mortgage Loan: A Mortgage Loan replaced or to be replaced by a Substitute Mortgage Loan.

Due Date: With respect to each Mortgage Loan, the date in each month on which its Scheduled Payment is due, if such due date is the first day of a month, and otherwise is deemed to be the first day of the following month or such other date specified in the related Servicing Agreement.

Master Servicer: Xxxxx Fargo Bank, National Association.

Moody's: Xxxxx'x Investors Service, Inc., or its successors in interest.

Mortgage: The mortgage or deed of trust creating a first lien on an interest in real property securing a Mortgage Note.

Mortgage File: The items referred to in Exhibit 1 pertaining to a particular Mortgage Loan and any additional documents required to be added to such documents pursuant to this Agreement or the Pooling and Servicing Agreement.

Mortgage Interest Rate: The annual rate of interest borne by a Mortgage Note as stated therein.

Mortgagor: The obligor(s) on a Mortgage Note.

Opinion of Counsel: A written opinion of counsel, who may be counsel for the Mortgage Loan Seller or the Purchaser, reasonably acceptable to the Trustee.

Person: Any legal person, including any individual, corporation, partnership, joint venture, association, joint stock company, trust, unincorporated organization or government or any agency or political subdivision thereof.

_________________________

[1]	Please contact Bear, Xxxxxxx & Co. Inc. for Acquisition Price.

Purchase Price: With respect to any Mortgage Loan (or any property acquired with respect thereto) required to be purchased by the Mortgage Loan Seller pursuant to this Agreement or Article II of the Pooling and Servicing Agreement, an amount equal to the sum of (i)(a) 100% of the Outstanding Principal Balance of such Mortgage Loan as of the date of repurchase (or if the related Mortgaged Property was acquired with respect thereto, 100% of the Outstanding Principal Balance at the date of the acquisition), plus (b) accrued but unpaid interest on the Outstanding Principal Balance at the related Mortgage Interest Rate, through and including the last day of the month of repurchase, and reduced by (c) any portion of the Master Servicing Compensation, Monthly Advances and advances payable to the purchaser of the Mortgage Loan and (ii) any costs and damages (if any) incurred by the Trust in connection with any violation of such Mortgage Loan of any anti-predatory lending laws.

Rating Agencies: Standard & Poor's and Moody's, each a "Rating Agency."

Securities Act: The Securities Act of 1933, as amended.

Standard & Poor's: Standard & Poor's Ratings Services, a division of The XxXxxx-Xxxx Companies, Inc. or its successors in interest.

Substitute Mortgage Loan: A mortgage loan substituted for a Deleted Mortgage Loan which must meet on the date of such substitution the requirements stated herein and in the Pooling and Servicing Agreement; upon such substitution, such mortgage loan shall be a "Mortgage Loan" hereunder.

Value: The value of the Mortgaged Property at the time of origination of the related Mortgage Loan, such value being the lesser of (i) the value of such property set forth in an appraisal accepted by the applicable originator of the Mortgage Loan or (ii) the sales price of such property at the time of origination.

SECTION 2.Purchase and Sale of the Mortgage Loans and Related Rights.

(i) Upon satisfaction of the conditions set forth in Section 10 hereof, the Mortgage Loan Seller agrees to sell, and the Purchaser agrees to purchase Mortgage Loans having an aggregate outstanding principal balance as of the Cut-off Date equal to the Cut-off Date Balance.

(ii) The closing for the purchase and sale of the Mortgage Loans and the closing for the issuance of the Certificates will take place on the Closing Date at the office of the Purchaser's counsel in New York, New York or such other place as the parties shall agree.

(iii) Upon the satisfaction of the conditions set forth in Section 10 hereof, on the Closing Date, the Purchaser shall pay to the Mortgage Loan Seller the Acquisition Price for the Mortgage Loans in immediately available funds by wire transfer to such account or accounts as shall be designated by the Mortgage Loan Seller.

SECTION 3. Mortgage Loan Schedules. The Mortgage Loan Seller agrees to provide to the Purchaser as of the date hereof a preliminary listing of the Mortgage Loans (the “Preliminary Mortgage Loan Schedule”) setting forth the information listed on Exhibit 2 to this Agreement with respect to each of the Mortgage Loans being sold by the Mortgage Loan Seller. If there are changes to the Preliminary Mortgage Loan Schedule, the Mortgage Loan Seller shall provide to the Purchaser as of the Closing Date a final schedule (the "Final Mortgage Loan Schedule") setting forth the information listed on Exhibit 2 to this Agreement with respect to each of the Mortgage Loans being sold by the Mortgage Loan Seller to the Purchaser. The Final Mortgage Loan Schedule shall be delivered to the Purchaser on the Closing Date, shall be attached to an amendment to this Agreement to be executed on the Closing Date by the parties hereto and shall be in form and substance mutually agreed to by the Mortgage Loan Seller and the Purchaser (the "Amendment"). If there are no changes to the Preliminary Mortgage Loan Schedule, the Preliminary Mortgage Loan Schedule shall be the Final Mortgage Loan Schedule for all purposes hereof.

SECTION 4. Mortgage Loan Transfer.

(i) The Purchaser will be entitled to all scheduled payments of principal and interest on the Mortgage Loans due after the Cut-off Date (regardless of when actually collected) and all payments thereon, other than scheduled principal and interest due on or before the Cut-off Date but received after the Cut-off Date. The Mortgage Loan Seller will be entitled to all scheduled payments of principal and interest on the Mortgage Loans due on or before the Cut-off Date (including payments collected after the Cut-off Date) and all payments thereon, other than scheduled principal and interest due after the Cut-off Date but received on or before the Cut-off Date. Such principal amounts and any interest thereon belonging to the Mortgage Loan Seller as described above will not be included in the aggregate outstanding principal balance of the Mortgage Loans as of the Cut-off Date as set forth on the Final Mortgage Loan Schedule.

(ii) Pursuant to various conveyance documents to be executed on the Closing Date and pursuant to the Pooling and Servicing Agreement, the Purchaser will assign on the Closing Date all of its right, title and interest in and to the Mortgage Loans to the Trustee for the benefit of the Certificateholders. In connection with the transfer and assignment of the Mortgage Loans, the Mortgage Loan Seller has delivered or will deliver or cause to be delivered to the Trustee by the Closing Date or such later date as is agreed to by the Purchaser and the Mortgage Loan Seller (each of the Closing Date and such later date is referred to as a "Mortgage File Delivery Date"), the items of each Mortgage File, provided, however, that in lieu of the foregoing, the Mortgage Loan Seller may deliver the following documents, under the circumstances set forth below: (x) in lieu of the original Security Instrument (including the Mortgage), assignments to the Trustee or intervening assignments thereof which have been delivered, are being delivered or will, upon receipt of recording information relating to the Security Instrument required to be included thereon, be delivered to recording offices for recording and have not been returned to the Mortgage Loan Seller in time to permit their delivery as specified above, the Mortgage Loan Seller may deliver a true copy thereof with a certification by the Mortgage Loan Seller, on the face of such copy, substantially as follows: "Certified to be a true and correct copy of the original, which has been transmitted for recording" (y) in lieu of the Security Instrument, assignments to the Trustee or intervening assignments thereof, if the applicable jurisdiction retains the originals of such documents (as evidenced by a certification from the Mortgage Loan Seller to such effect) the Mortgage Loan Seller may deliver photocopies of such documents containing an original certification by the judicial or other governmental

authority of the jurisdiction where such documents were recorded; and (z) in lieu of the Mortgage Notes relating to the Mortgage Loans, each identified in the list delivered by the Purchaser to the Trustee on the Closing Date and attached hereto as Exhibit 5, the Mortgage Loan Seller may deliver lost note affidavits and indemnities of the Mortgage Loan Seller; and provided further, however, that in the case of Mortgage Loans which have been prepaid in full after the Cut-off Date and prior to the Closing Date, the Mortgage Loan Seller, in lieu of delivering the above documents, may deliver to the Trustee a certification by the Mortgage Loan Seller or the Master Servicer to such effect. The Mortgage Loan Seller shall deliver such original documents (including any original documents as to which certified copies had previously been delivered) or such certified copies to the Trustee promptly after they are received. The Mortgage Loan Seller shall cause the Mortgage and intervening assignments, if any, and the assignment of the Security Instrument to be recorded not later than 180 days after the Closing Date, unless such assignment is not required to be recorded under the terms set forth in Section 6(i) hereof.

(iii) The Mortgage Loan Seller and the Purchaser acknowledge hereunder that all of the Mortgage Loans and the related servicing will ultimately be assigned to Deutsche Bank National Trust Company, as Trustee for the benefit of the Certificateholders, on the date hereof.

SECTION 5. Examination of Mortgage Files.

(i) On or before the Mortgage File Delivery Date (as defined in Section 4(ii) herein), the Mortgage Loan Seller will have made the Mortgage Files available to the Purchaser or its agent for examination which may be at the offices of the Trustee or the Mortgage Loan Seller and/or the Mortgage Loan Seller's custodian. The fact that the Purchaser or its agent has conducted or has failed to conduct any partial or complete examination of the Mortgage Files shall not affect the Purchaser's rights to demand cure, repurchase, substitution or other relief as provided in this Agreement. In furtherance of the foregoing, the Mortgage Loan Seller shall make the Mortgage Files available to the Purchaser or its agent from time to time so as to permit the Purchaser to confirm the Mortgage Loan Seller's compliance with the delivery and recordation requirements of this Agreement and the Pooling and Servicing Agreement. In addition, upon request of the Purchaser, the Mortgage Loan Seller agrees to provide to the Purchaser, the Underwriters and to any investors or prospective investors in the Certificates information regarding the Mortgage Loans and their servicing, to make the Mortgage Files available to the Purchaser, the Underwriters and to such investors or prospective investors (which may be at the offices of the Mortgage Loan Seller and/or the Mortgage Loan Seller's custodian) and to make available personnel knowledgeable about the Mortgage Loans for discussions with the Purchaser, the Underwriters and such investors or prospective investors, upon reasonable request during regular business hours, sufficient to permit the Purchaser, the Underwriters and such investors or potential investors to conduct such due diligence as any such party reasonably believes is appropriate.

(ii) Pursuant to the Pooling and Servicing Agreement, on the Closing Date the Trustee, for the benefit of the Certificateholders, will review or cause the Custodian to review items of the Mortgage Files as set forth on Exhibit 1 and will deliver or cause the Custodian to deliver to the Mortgage Loan Seller an initial certification in the form attached as Exhibit One to the Custodial Agreement.

(iii) Pursuant to the Pooling and Servicing Agreement, within 90 days of the Closing Date, the Trustee will review or shall cause the Custodian to review items of the Mortgage Files as set forth on Exhibit 1 and will deliver to the Mortgage Loan Seller and the Master Servicer an interim certification substantially in the form of Exhibit Two to the Custodial Agreement.

(iv) Pursuant to the Pooling and Servicing Agreement, within 180 days of the Closing Date (or, with respect to any Substitute Mortgage Loan, within five Business Days after the receipt by the Trustee or Custodian thereof) the Trustee will review or cause the Custodian to review items of the Mortgage Files as set forth on Exhibit 1 and will deliver to the Mortgage Loan Seller and the Master Servicer a final certification substantially in the form of Exhibit Three to the Custodial Agreement. If the Trustee is unable to deliver a final certification with respect to the items listed in Exhibit 1 due to any document that is missing, has not been executed, is unrelated, determined on the basis of the Mortgagor name, original principal balance and loan number, to the Mortgage Loans identified in the Final Mortgage Loan Schedule (a "Material Defect"), the Trustee or the Custodian, as its agent, shall promptly notify the Mortgage Loan Seller of such Material Defect. The Mortgage Loan Seller shall correct or cure any such Material Defect within 90 days from the date of notice from the Trustee or the Custodian, as its agent, of the Material Defect and if the Mortgage Loan Seller does not correct or cure such Material Defect within such period and such defect materially and adversely affects the interests of the Certificateholders in the related Mortgage Loan, the Mortgage Loan Seller will, in accordance with the terms of the Pooling and Servicing Agreement, within 90 days of the date of notice, provide the Trustee with a Substitute Mortgage Loan (if within two years of the Closing Date) or purchase the related Mortgage Loan at the applicable Purchase Price; provided that, if such defect would cause the Mortgage Loan to be other than a "qualified mortgage" as defined in Section 860G(a)(3) of the Code, any such cure, repurchase or substitution must occur within 90 days from the date such breach was discovered; provided, however, that if such defect relates solely to the inability of the Mortgage Loan Seller to deliver the original security instrument or intervening assignments thereof, or a certified copy because the originals of such documents, or a certified copy, have not been returned by the applicable jurisdiction, the Mortgage Loan Seller shall not be required to purchase such Mortgage Loan if the Mortgage Loan Seller delivers such original documents or certified copy promptly upon receipt, but in no event later than 360 days after the Closing Date. The foregoing repurchase obligation shall not apply in the event that the Mortgage Loan Seller cannot deliver such original or copy of any document submitted for recording to the appropriate recording office in the applicable jurisdiction because such document has not been returned by such office; provided that the Mortgage Loan Seller shall instead deliver a recording receipt of such recording office or, if such receipt is not available, a certificate of Mortgage Loan Seller or a Servicing Officer confirming that such documents have been accepted for recording, and delivery to the Trustee or the Custodian, as its agent, shall be effected by the Mortgage Loan Seller within thirty days of its receipt of the original recorded document.

(v) At the time of any substitution, the Mortgage Loan Seller shall deliver or cause to be delivered the Substitute Mortgage Loan, the related Mortgage File and any other documents and payments required to be delivered in connection with a substitution pursuant to the Pooling and Servicing Agreement. At the time of any purchase or substitution, the Trustee shall (i) assign to the Mortgage Loan Seller and release or cause the Custodian to release the

documents (including, but not limited to, the Mortgage, Mortgage Note and other contents of the Mortgage File) in its possession or in the possession of the Custodian relating to the Deleted Mortgage Loan and (ii) execute and deliver such instruments of transfer or assignment, in each case without recourse, as shall be necessary to vest in the Mortgage Loan Seller title to such Deleted Mortgage Loan.

SECTION 6. Recordation of Assignments of Mortgage.

(i) The Mortgage Loan Seller shall, promptly after the Closing Date, cause each Mortgage and each assignment of Mortgage from the Mortgage Loan Seller to the Trustee, and all unrecorded intervening assignments, if any, delivered on or prior to the Closing Date, to be recorded in all recording offices in the jurisdictions where the related Mortgaged Properties are located; provided, however, the Mortgage Loan Seller need not cause to be recorded any assignment which relates to a Mortgage Loan if (a) such recordation is not required by the Rating Agencies or an Opinion of Counsel has been provided to the Trustee which states that the recordation of such assignment is not necessary to protect the Trustee's interest in the related Mortgage Loan or (b) MERS is identified on the Mortgage or a properly recorded assignment of the Mortgage, as the Mortgagee of record solely as nominee for the Mortgage Loan Seller and its successors and assigns; provided, however, notwithstanding the delivery of any Opinion of Counsel, each assignment of Mortgage shall be submitted for recording by the Mortgage Loan Seller in the manner described above, at no expense to the Trust Fund or Trustee, upon the earliest to occur of (i) reasonable direction by the Holders of Certificates evidencing Fractional Undivided Interests aggregating not less than 25% of the Trust, (ii) the occurrence of an Event of Default, (iii) the occurrence of a bankruptcy, insolvency or foreclosure relating to the Mortgage Loan Seller and (iv) the occurrence of a servicing transfer as described in Section 8.02 of the Pooling and Servicing Agreement.

While each such Mortgage or assignment is being recorded, if necessary, the Mortgage Loan Seller shall leave or cause to be left with the Trustee a certified copy of such Mortgage or assignment. In the event that, within 180 days of the Closing Date, the Trustee has not been provided an Opinion of Counsel as described above or received evidence of recording with respect to each Mortgage Loan delivered to the Purchaser pursuant to the terms hereof or as set forth above, the failure to provide evidence of recording or such Opinion of Counsel (in the alternative, if required) shall be considered a Material Defect, and the provisions of Section 5(iii) and (iv) shall apply. All customary recording fees and reasonable expenses relating to the recordation of the assignments of mortgage to the Trustee or the Opinion of Counsel, as the case may be, shall be borne by the Mortgage Loan Seller.

(ii) It is the express intent of the parties hereto that the conveyance of the Mortgage Loans by the Mortgage Loan Seller to the Purchaser, as contemplated by this Agreement be, and be treated as, a sale. It is, further, not the intention of the parties that such conveyance be deemed a pledge of the Mortgage Loans by the Mortgage Loan Seller to the Purchaser to secure a debt or other obligation of the Mortgage Loan Seller. However, in the event that, notwithstanding the intent of the parties, the Mortgage Loans are held by a court to continue to be property of the Mortgage Loan Seller, then (a) this Agreement shall also be deemed to be a security agreement within the meaning of Articles 9 of the applicable Uniform Commercial Code; (b) the transfer of the Mortgage Loans provided for herein shall be deemed to

be a grant by the Mortgage Loan Seller to the Purchaser of a security interest in all of the Mortgage Loan Seller's right, title and interest in and to the Mortgage Loans and all amounts payable to the holders of the Mortgage Loans in accordance with the terms thereof and all proceeds of the conversion, voluntary or involuntary, of the foregoing into cash, instruments, securities or other property, to the extent the Purchaser would otherwise be entitled to own such Mortgage Loans and proceeds pursuant to Section 4 hereof, including all amounts, other than investment earnings, from time to time held or invested in any accounts created pursuant to the Pooling and Servicing Agreement, whether in the form of cash, instruments, securities or other property; (c) the possession by the Purchaser or the Trustee of Mortgage Notes and such other items of property as constitute instruments, money, negotiable documents or chattel paper shall be deemed to be "possession by the secured party" for purposes of perfecting the security interest pursuant to Section 9-313 (or comparable provision) of the applicable Uniform Commercial Code; and (d) notifications to persons holding such property, and acknowledgments, receipts or confirmations from persons holding such property, shall be deemed notifications to, or acknowledgments, receipts or confirmations from, financial intermediaries, bailees or agents (as applicable) of the Purchaser for the purpose of perfecting such security interest under applicable law. Any assignment of the interest of the Purchaser pursuant to any provision hereof or pursuant to the Pooling and Servicing Agreement shall also be deemed to be an assignment of any security interest created hereby. The Mortgage Loan Seller and the Purchaser shall, to the extent consistent with this Agreement, take such actions as may be reasonably necessary to ensure that, if this Agreement were deemed to create a security interest in the Mortgage Loans, such security interest would be deemed to be a perfected security interest of first priority under applicable law and will be maintained as such throughout the term of the Pooling and Servicing Agreement.

SECTION 7. Representations and Warranties of Mortgage Loan Seller Concerning the Mortgage Loans. The Mortgage Loan Seller hereby represents and warrants to the Purchaser as of the Closing Date or such other date as may be specified below with respect to each Mortgage Loan being sold by it:

(i) the information set forth in the Mortgage Loan Schedule hereto is true and correct in all material respects and the information provided to the Rating Agencies, including the Mortgage Loan level detail, is true and correct according to the Rating Agency requirements;

(ii) immediately prior to the transfer to the Purchaser, the Mortgage Loan Seller was the sole owner of beneficial title and holder of each Mortgage and Mortgage Note relating to the Mortgage Loans and is conveying the same to the Purchaser free and clear of any and all liens, claims, encumbrances, participation interests, equities, pledges, charges or security interests of any nature and the Mortgage Loan Seller has full right and authority to sell or assign the same pursuant to this Agreement;

(iii) each Mortgage Loan at the time it was made complied in all material respects with all applicable laws and regulations, including, without limitation, usury, equal credit opportunity, disclosure and recording laws and all predatory lending laws; and each Mortgage Loan has been serviced in all material respects in accordance with all applicable laws and regulations, including, without limitation, usury, equal credit opportunity, disclosure and recording laws and all predatory lending laws and the terms of the related Mortgage Note, the Mortgage and other loan documents;

(iv) there is no monetary default existing under any Mortgage or the related Mortgage Note and there is no material event which, with the passage of time or with notice and the expiration of any grace or cure period, would constitute a default, breach or event of acceleration; and neither the Mortgage Loan Seller, any of its affiliates nor any servicer of any related Mortgage Loan has taken any action to waive any default, breach or event of acceleration; no foreclosure action is threatened or has been commenced with respect to the Mortgage Loan;

(v) the terms of the Mortgage Note and the Mortgage have not been impaired, waived, altered or modified in any respect, except by written instruments, (i) if required by law in the jurisdiction where the Mortgaged Property is located, or (ii) to protect the interests of the Trustee on behalf of the Certificateholders;

(vi) no selection procedure reasonably believed by the Mortgage Loan Seller to be adverse to the interests of the Certificateholders was utilized in selecting the Mortgage Loans;

(vii) each Mortgage is a valid and enforceable first lien on the property securing the related Mortgage Note and each Mortgaged Property is owned by the Mortgagor in fee simple (except with respect to common areas in the case of condominiums, PUDs and de minimis PUDs) or by leasehold for a term longer than the term of the related Mortgage, subject only to (i) the lien of current real property taxes and assessments, (ii) covenants, conditions and restrictions, rights of way, easements and other matters of public record as of the date of recording of such Mortgage, such exceptions being acceptable to mortgage lending institutions generally or specifically reflected in the appraisal obtained in connection with the origination of the related Mortgage Loan or referred to in the lender's title insurance policy delivered to the originator of the related Mortgage Loan and (iii) other matters to which like properties are commonly subject which do not materially interfere with the benefits of the security intended to be provided by such Mortgage;

(viii) there is no mechanics' lien or claim for work, labor or material affecting the premises subject to any Mortgage which is or may be a lien prior to, or equal with, the lien of such Mortgage except those which are insured against by the title insurance policy referred to in (xiii) below;

(ix) there was no delinquent tax or assessment lien against the property subject to any Mortgage, except where such lien was being contested in good faith and a stay had been granted against levying on the property;

(x) there is no valid offset, defense or counterclaim to any Mortgage Note or Mortgage, including the obligation of the Mortgagor to pay the unpaid principal and interest on such Mortgage Note;

(xi) to the best of the Mortgage Loan Seller’s knowledge, except to the extent insurance is in place which will cover such damage, the physical property subject to any

Mortgage is free of material damage and is in good repair and there is no proceeding pending or threatened for the total or partial condemnation of any Mortgaged Property;

(xii) the Mortgaged Property and all improvements thereon comply with all requirements of any applicable zoning and subdivision laws and ordinances;

(xiii) a lender's title insurance policy (on an ALTA or CLTA form) or binder, or other assurance of title customary in the relevant jurisdiction therefor in a form acceptable to Xxxxxx Xxx or Xxxxxxx Mac, was issued on the date that each Mortgage Loan was created by a title insurance company which was qualified to do business in the jurisdiction where the related Mortgaged Property is located, insuring the Mortgage Loan Seller and its successors and assigns that the Mortgage is a first priority lien on the related Mortgaged Property in the original principal amount of the Mortgage Loan. The Mortgage Loan Seller is the sole insured under such lender's title insurance policy, and such policy, binder or assurance is valid and remains in full force and effect, and each such policy, binder or assurance shall contain all applicable endorsements including a negative amortization endorsement, if applicable;

(xiv) at the time of origination, each Mortgaged Property was the subject of an appraisal which conformed to the underwriting requirements of the originator of the Mortgage Loan;

(xv) the improvements on each Mortgaged Property securing a Mortgage Loan are insured (by an insurer which is acceptable to the Mortgage Loan Seller) against loss by fire and such hazards as are covered under a standard extended coverage endorsement in the locale in which the Mortgaged Property is located, in an amount which is not less than the lesser of the maximum insurable value of the improvements securing such Mortgage Loan or the outstanding principal balance of the Mortgage Loan, but in no event in an amount less than an amount that is required to prevent the Mortgagor from being deemed to be a co-insurer thereunder; if the improvement on the Mortgaged Property is a condominium unit, it is included under the coverage afforded by a blanket policy for the condominium project; if upon origination of the related Mortgage Loan, the improvements on the Mortgaged Property were in an area identified as a federally designated flood area, a flood insurance policy is in effect in an amount representing coverage not less than the least of (i) the outstanding principal balance of the Mortgage Loan, (ii) the restorable cost of improvements located on such Mortgaged Property or (iii) the maximum coverage available under federal law; and each Mortgage obligates the Mortgagor thereunder to maintain the insurance referred to above at the Mortgagor's cost and expense;

(xvi) each Mortgage Loan constitutes a "qualified mortgage" under Section 860G(a)(3)(A) of the Code and Treasury Regulations Section 1.860G-2(a)(1), (2), (4), (5), (6), (7) and (9) without reliance on the provisions of Treasury Regulation Section 1.860G-2(a)(3) or Treasury Regulation Section 1.860G-2(f)(2) or any other provision that would allow a Mortgage Loan to be treated as a “qualified mortgage” notwithstanding its failure to meet the requirements of Section 860G(a)(3)(A) of the Code and Treasury Regulation Section 1.860G-2(a)(1), (2), (4), (5), (6), (7) and (9);

(xvii) each Mortgage Loan was originated (a) by a savings and loan association, savings bank, commercial bank, credit union, insurance company or similar institution that is supervised and examined by a federal or state authority, (b) by a mortgagee approved by the Secretary of HUD pursuant to Sections 203 and 211 of the National Housing Act, as amended, or (c) by a mortgage broker or correspondent lender in a manner such that the related Mortgage Loan would be regarded for purposes of Section 3(a)(41) of the Securities Exchange Act of 1934, as amended, as having been originated by an entity described in clauses (a) or (b) above;

(xviii) none of the Mortgage Loans are (a) loans subject to 12 CFR Part 226.31, 12 CFR Part 226.32 or 12 CFR Part 226.34 of Regulation Z, the regulation implementing TILA, which implements the Home Ownership and Equity Protection Act of 1994, as amended or (b) “high cost home,” “covered” (excluding home loans defined as “covered home loans” in the New Jersey Home Ownership Security Act of 2002 that were originated between November 26, 2003 and July 7, 2004), “high risk home” or “predatory” loans under any applicable state, federal or local law (or a similarly classified loan using different terminology under a law imposing heightened regulatory scrutiny or additional legal liability for residential mortgage loans having high interest rates, points and/or fees);

(xix) no Mortgage Loan (a) is a “high cost loan” or “covered loan” as applicable (as such terms are defined in Standard & Poor’s LEVELS® Glossary, Version 5.6c, Appendix E, attached hereto as Exhibit 6 or (b) was originated on or after October 1, 2002 through March 6, 2003 and is governed by the Georgia Fair Lending Act; and

(xx) the information set forth in Schedule A of the Prospectus Supplement with respect to the Mortgage Loans is true and correct in all material respects.

It is understood and agreed that the representations and warranties set forth in this Section 7 will inure to the benefit of the Purchaser, its successors and assigns, notwithstanding any restrictive or qualified endorsement on any Mortgage Note or assignment of Mortgage or the examination of any Mortgage File. Upon any substitution for a Mortgage Loan, the representations and warranties set forth above shall be deemed to be made by the Mortgage Loan Seller as to any Substitute Mortgage Loan as of the date of substitution.

Upon discovery or receipt of notice by the Mortgage Loan Seller, the Purchaser or the Trustee of a breach of any representation or warranty of the Mortgage Loan Seller set forth in this Section 7 which materially and adversely affects the value of the interests of the Purchaser, the Certificateholders or the Trustee in any of the Mortgage Loans delivered to the Purchaser pursuant to this Agreement, the party discovering or receiving notice of such breach shall give prompt written notice to the others. In the case of any such breach of a representation or warranty set forth in this Section 7, within 90 days from the date of discovery by the Mortgage Loan Seller, or the date the Mortgage Loan Seller is notified by the party discovering or receiving notice of such breach (whichever occurs earlier), the Mortgage Loan Seller will (i) cure such breach in all material respects, (ii) purchase the affected Mortgage Loan at the applicable Purchase Price or (iii) if within two years of the Closing Date, substitute a qualifying Substitute Mortgage Loan in exchange for such Mortgage Loan. The obligations of the Mortgage Loan Seller to cure, purchase or substitute a qualifying Substitute Mortgage Loan shall constitute the Purchaser's, the Trustee's and the Certificateholder's sole and exclusive remedies under this

Agreement or otherwise respecting a breach of representations or warranties hereunder with respect to the Mortgage Loans, except for the obligation of the Mortgage Loan Seller to indemnify the Purchaser for such breach as set forth in and limited by Section 13 hereof. It is understood by the parties hereto that a breach of the representations and warranties made in any of clause (xviii) or (xix) of this Section 7 will be deemed to materially and adversely affect the value of the interests of the Certificateholders in the related Mortgage Loan.

Any cause of action against the Mortgage Loan Seller relating to or arising out of a breach by the Mortgage Loan Seller of any representations and warranties made in this Section 7 shall accrue as to any Mortgage Loan upon (i) discovery of such breach by the Mortgage Loan Seller or notice thereof by the party discovering such breach and (ii) failure by the Mortgage Loan Seller to cure such breach, purchase such Mortgage Loan or substitute a qualifying Substitute Mortgage Loan pursuant to the terms hereof.

SECTION 8. Representations and Warranties Concerning the Mortgage Loan Seller. As of the date hereof and as of the Closing Date, the Mortgage Loan Seller represents and warrants to the Purchaser as to itself in the capacity indicated as follows:

(i) the Mortgage Loan Seller (i) is a corporation duly organized, validly existing and in good standing under the laws of the State of New York and (ii) is qualified and in good standing to do business in each jurisdiction where such qualification is necessary, except where the failure so to qualify would not reasonably be expected to have a material adverse effect on the Mortgage Loan Seller's business as presently conducted or on the Mortgage Loan Seller’s ability to enter into this Agreement and to consummate the transactions contemplated hereby;

(ii) the Mortgage Loan Seller has full corporate power to own its property, to carry on its business as presently conducted and to enter into and perform its obligations under this Agreement;

(iii) the execution and delivery by the Mortgage Loan Seller of this Agreement has been duly authorized by all necessary action on the part of the Mortgage Loan Seller; and neither the execution and delivery of this Agreement, nor the consummation of the transactions herein contemplated, nor compliance with the provisions hereof, will conflict with or result in a breach of, or constitute a default under, any of the provisions of any law, governmental rule, regulation, judgment, decree or order binding on the Mortgage Loan Seller or its properties or the charter or by-laws of the Mortgage Loan Seller, except those conflicts, breaches or defaults which would not reasonably be expected to have a material adverse effect on the Mortgage Loan Seller's ability to enter into this Agreement and to consummate the transactions contemplated hereby;

(iv) the execution, delivery and performance by the Mortgage Loan Seller of this Agreement and the consummation of the transactions contemplated hereby do not require the consent or approval of, the giving of notice to, the registration with, or the taking of any other action in respect of, any state, federal or other governmental authority or agency, except those consents, approvals, notices, registrations or other actions as have already been obtained, given or made and, in connection with the recordation of the Mortgages, powers of attorney or assignments of Mortgages not yet completed;

(v) this Agreement has been duly executed and delivered by the Mortgage Loan Seller and, assuming due authorization, execution and delivery by the Purchaser, constitutes a valid and binding obligation of the Mortgage Loan Seller enforceable against it in accordance with its terms (subject to applicable bankruptcy and insolvency laws and other similar laws affecting the enforcement of the rights of creditors generally);

(vi) there are no actions, suits or proceedings pending or, to the knowledge of the Mortgage Loan Seller, threatened against the Mortgage Loan Seller, before or by any court, administrative agency, arbitrator or governmental body (i) with respect to any of the transactions contemplated by this Agreement or (ii) with respect to any other matter which in the judgment of the Mortgage Loan Seller will be determined adversely to the Mortgage Loan Seller and if determined adversely to the Mortgage Loan Seller materially and adversely affect the Mortgage Loan Seller's ability to perform its obligations under this Agreement; and the Mortgage Loan Seller is not in default with respect to any order of any court, administrative agency, arbitrator or governmental body so as to materially and adversely affect the transactions contemplated by this Agreement; and

(vii) the Mortgage Loan Seller's Information (identified in Exhibit 3 hereof) does not include any untrue statement of a material fact or omit to state a material fact necessary in order to make the statements made, in light of the circumstances under which they were made, not misleading.

SECTION 9. Representations and Warranties Concerning the Purchaser. As of the date hereof and as of the Closing Date, the Purchaser represents and warrants to the Mortgage Loan Seller as follows:

(i) the Purchaser (i) is a corporation duly organized, validly existing and in good standing under the laws of the State of Delaware and (ii) is qualified and in good standing as a foreign corporation to do business in each jurisdiction where such qualification is necessary, except where the failure to so qualify would not reasonably be expected to have a material adverse effect on the Purchaser's business as presently conducted or on the Purchaser's ability to enter into this Agreement and to consummate the transactions contemplated hereby;

(ii) the Purchaser has full corporate power to own its property, to carry on its business as presently conducted and to enter into and perform its obligations under this Agreement;

(iii) the execution and delivery by the Purchaser of this Agreement have been duly authorized by all necessary corporate action on the part of the Purchaser; and neither the execution and delivery of this Agreement, nor the consummation of the transactions herein contemplated, nor compliance with the provisions hereof, will conflict with or result in a breach of, or constitute a default under, any of the provisions of any law, governmental rule, regulation, judgment, decree or order binding on the Purchaser or its properties or the articles of incorporation or by-laws of the Purchaser, except those conflicts, breaches or defaults which would not reasonably be expected to have a material adverse effect on the Purchaser's ability to enter into this Agreement and to consummate the transactions contemplated hereby;

(iv) the execution, delivery and performance by the Purchaser of this Agreement and the consummation of the transactions contemplated hereby do not require the consent or approval of, the giving of notice to, the registration with, or the taking of any other action in respect of, any state, federal or other governmental authority or agency, except those consents, approvals, notices, registrations or other actions as have already been obtained, given or made;

(v) this Agreement has been duly executed and delivered by the Purchaser and, assuming due authorization, execution and delivery by the Mortgage Loan Seller, constitutes a valid and binding obligation of the Purchaser enforceable against it in accordance with its terms (subject to applicable bankruptcy and insolvency laws and other similar laws affecting the enforcement of the rights of creditors generally);

(vi) there are no actions, suits or proceedings pending or, to the knowledge of the Purchaser, threatened against the Purchaser, before or by any court, administrative agency, arbitrator or governmental body (i) with respect to any of the transactions contemplated by this Agreement or (ii) with respect to any other matter which in the judgment of the Purchaser will be determined adversely to the Purchaser and will if determined adversely to the Purchaser materially and adversely affect the Purchaser's ability to perform its obligations under this Agreement; and the Purchaser is not in default with respect to any order of any court, administrative agency, arbitrator or governmental body so as to materially and adversely affect the transactions contemplated by this Agreement; and

(vii) the Purchaser's Information (identified in Exhibit 4 hereof) does not include any untrue statement of a material fact or omit to state a material fact necessary in order to make the statements made, in light of the circumstances under which they were made, not misleading.

SECTION 10. Conditions to Closing.

(1) The obligations of the Purchaser under this Agreement will be subject to the satisfaction, on or prior to the Closing Date, of the following conditions:

(a) Each of the obligations of the Mortgage Loan Seller required to be performed at or prior to the Closing Date pursuant to the terms of this Agreement shall have been duly performed and complied with in all material respects; all of the representations and warranties of the Mortgage Loan Seller under this Agreement shall be true and correct as of the date or dates specified in all material respects; and no event shall have occurred which, with notice or the passage of time, would constitute a default under this Agreement, or the Pooling and Servicing Agreement; and the Purchaser shall have received certificates to that effect signed by authorized officers of the Mortgage Loan Seller.

(b) The Purchaser shall have received all of the following closing documents, in such forms as are agreed upon and reasonably acceptable to the Purchaser, duly executed by all signatories other than the Purchaser as required pursuant to the respective terms thereof:

(i) If required pursuant to Section 3 hereof, the Amendment dated as of the Closing Date and any documents referred to therein;

(ii) If required pursuant to Section 3 hereof, the Final Mortgage Loan Schedule containing the information set forth on Exhibit 2 hereto, one copy to be attached to each counterpart of the Amendment;

(iii) The Pooling and Servicing Agreement, in form and substance reasonably satisfactory to the Trustee and the Purchaser, and all documents required thereby duly executed by all signatories;

(iv) A certificate of an officer of the Mortgage Loan Seller dated as of the Closing Date, in a form reasonably acceptable to the Purchaser, and attached thereto copies of the charter and by-laws of the Mortgage Loan Seller and evidence as to the good standing of the Mortgage Loan Seller dated as of a recent date;

(v) One or more opinions of counsel from the Mortgage Loan Seller's counsel otherwise in form and substance reasonably satisfactory to the Purchaser, the Trustee and each Rating Agency;

(vi) A letter from each of the Rating Agencies giving each Class of Certificates set forth on Schedule A hereto the rating set forth therein; and

(vii) Such other documents, certificates (including additional representations and warranties) and opinions as may be reasonably necessary to secure the intended ratings from each Rating Agency for the Certificates.

(c) The Certificates to be sold to the Underwriters pursuant to the Underwriting Agreement and the Purchase Agreement, if applicable, shall have been issued and sold to the Underwriters.

(d) The Mortgage Loan Seller shall have furnished to the Purchaser such other certificates of its officers or others and such other documents and opinions of counsel to evidence fulfillment of the conditions set forth in this Agreement and the transactions contemplated hereby as the Purchaser and its counsel may reasonably request.

(2) The obligations of the Mortgage Loan Seller under this Agreement shall be subject to the satisfaction, on or prior to the Closing Date, of the following conditions:

(a) The obligations of the Purchaser required to be performed by it on or prior to the Closing Date pursuant to the terms of this Agreement shall have been duly performed and complied with in all material respects, and all of the representations and warranties of the Purchaser under this Agreement shall be true and correct in all material respects as of the date hereof and as of the Closing Date, and no event shall have

occurred which would constitute a breach by it of the terms of this Agreement, and the Mortgage Loan Seller shall have received a certificate to that effect signed by an authorized officer of the Purchaser.

(b) The Mortgage Loan Seller shall have received copies of all of the following closing documents, in such forms as are agreed upon and reasonably acceptable to the Mortgage Loan Seller, duly executed by all signatories other than the Mortgage Loan Seller as required pursuant to the respective terms thereof:

(i) If required pursuant to Section 3 hereof, the Amendment dated as of the Closing Date and any documents referred to therein;

(ii) The Pooling and Servicing Agreement, in form and substance reasonably satisfactory to the Mortgage Loan Seller, and all documents required thereby duly executed by all signatories;

(iii) A certificate of an officer of the Purchaser dated as of the Closing Date, in a form reasonably acceptable to the Mortgage Loan Seller, and attached thereto copies of the Purchaser's articles of incorporation and by-laws, and evidence as to the good standing of the Purchaser dated as of a recent date;

(iv) One or more opinions of counsel from the Purchaser's counsel in form and substance reasonably satisfactory to the Mortgage Loan Seller; and

(v) Such other documents, certificates (including additional representations and warranties) and opinions as may be reasonably necessary to secure the intended rating from each Rating Agency for the Certificates.

SECTION 11. Fees and Expenses. Subject to Section 16 hereof, the Mortgage Loan Seller shall pay on the Closing Date or such later date as may be agreed to by the Purchaser (i) the fees and expenses of the Mortgage Loan Seller's attorneys and the reasonable fees and expenses of the Purchaser's attorneys, (ii) the fees and expenses of Deloitte & Touche LLP, (iii) the fee for the use of Purchaser's Registration Statement based on the aggregate original principal amount of the Certificates and the filing fee of the Commission as in effect on the date on which the Registration Statement was declared effective, (iv) the fees and expenses including counsel's fees and expenses in connection with any "blue sky" and legal investment matters, (v) the fees and expenses of the Trustee which shall include without limitation the fees and expenses of the Trustee (and the fees and disbursements of its counsel) with respect to (A) legal and document review of this Agreement, the Pooling and Servicing Agreement, the Certificates and related agreements, (B) attendance at the Closing and (C) review of the Mortgage Loans to be performed by the Trustee, (vi) the expenses for printing or otherwise reproducing the Certificates, the Prospectus and the Prospectus Supplement, (vii) the fees and expenses of each Rating Agency (both initial and ongoing), (viii) the fees and expenses relating to the preparation and recordation of mortgage assignments (including intervening assignments, if any and if available, to evidence a complete chain of title from the originator thereof to the Trustee) from the Mortgage Loan Seller to the Trustee or the expenses relating to the Opinion of Counsel referred to in Section 6(i)

hereof, as the case may be, and (ix) Mortgage File due diligence expenses and other out-of-pocket expenses incurred by the Purchaser in connection with the purchase of the Mortgage Loans and by Bear Xxxxxxx in connection with the sale of the Certificates. The Mortgage Loan Seller additionally agrees to pay directly to any third party on a timely basis the fees provided for above which are charged by such third party and which are billed periodically.

SECTION 12. Accountants' Letters.

(i) Deloitte & Touche LLP will review the characteristics of a sample of the Mortgage Loans described in the Final Mortgage Loan Schedule and will compare those characteristics to the description of the Mortgage Loans contained in the Prospectus Supplement under the captions "Summary of Terms - The Mortgage Pool" and "Description of the Mortgage Loans" and in Schedule A thereto. The Mortgage Loan Seller will cooperate with the Purchaser in making available all information and taking all steps reasonably necessary to permit such accountants to complete the review and to deliver the letters required of them under the Underwriting Agreement. Deloitte & Touche LLP will also confirm certain calculations as set forth under the caption "Yield and Prepayment Considerations" in the Prospectus Supplement.

(ii) To the extent statistical information with respect to the Subservicer's servicing portfolio is included in the Prospectus Supplement under the caption "The Master Servicer," a letter from the certified public accountant for the Subservicer will be delivered to the Purchaser dated the date of the Prospectus Supplement, in the form previously agreed to by the Mortgage Loan Seller and the Purchaser, with respect to such statistical information.

SECTION 13. Indemnification.

(i) The Mortgage Loan Seller shall indemnify and hold harmless the Purchaser and its directors, officers and controlling persons (as defined in Section 15 of the Securities Act) from and against any loss, claim, damage or liability or action in respect thereof, to which they or any of them may become subject, under the Securities Act or otherwise, insofar as such loss, claim, damage, liability or action arises out of, or is based upon (i) any untrue statement of a material fact contained in the Mortgage Loan Seller's Information as identified in Exhibit 3, the omission to state in the Prospectus Supplement or Prospectus (or any amendment thereof or supplement thereto approved by the Mortgage Loan Seller and in which additional Mortgage Loan Seller's Information is identified), in reliance upon and in conformity with Mortgage Loan Seller's Information a material fact required to be stated therein or necessary to make the statements therein in light of the circumstances in which they were made, not misleading, (ii) any representation or warranty assigned or made by the Mortgage Loan Seller in Section 7 or Section 8 hereof being, or alleged to be, untrue or incorrect, or (iii) any failure by the Mortgage Loan Seller to perform its obligations under this Agreement; and the Mortgage Loan Seller shall reimburse the Purchaser and each other indemnified party for any legal and other expenses reasonably incurred by them in connection with investigating or defending or preparing to defend against any such loss, claim, damage, liability or action.

The foregoing indemnity agreement is in addition to any liability which the Mortgage Loan Seller otherwise may have to the Purchaser or any other such indemnified party.

(ii) The Purchaser shall indemnify and hold harmless the Mortgage Loan Seller and its respective directors, officers and controlling persons (as defined in Section 15 of the Securities Act) from and against any loss, claim, damage or liability or action in respect thereof, to which they or any of them may become subject, under the Securities Act or otherwise, insofar as such loss, claim, damage, liability or action arises out of, or is based upon (a) any untrue statement of a material fact contained in the Purchaser's Information as identified in Exhibit 4, the omission to state in the Prospectus Supplement or Prospectus (or any amendment thereof or supplement thereto approved by the Purchaser and in which additional Purchaser's Information is identified), in reliance upon and in conformity with the Purchaser's Information, a material fact required to be stated therein or necessary to make the statements therein in light of the circumstances in which they were made, not misleading, (b) any representation or warranty made by the Purchaser in Section 9 hereof being, or alleged to be, untrue or incorrect, or (c) any failure by the Purchaser to perform its obligations under this Agreement; and the Purchaser shall reimburse the Mortgage Loan Seller, and each other indemnified party for any legal and other expenses reasonably incurred by them in connection with investigating or defending or preparing to defend any such loss, claim, damage, liability or action. The foregoing indemnity agreement is in addition to any liability which the Purchaser otherwise may have to the Mortgage Loan Seller, or any other such indemnified party,

(iii) Promptly after receipt by an indemnified party under subsection (i) or (ii) above of notice of the commencement of any action, such indemnified party shall, if a claim in respect thereof is to be made against the indemnifying party under such subsection, notify each party against whom indemnification is to be sought in writing of the commencement thereof (but the failure so to notify an indemnifying party shall not relieve it from any liability which it may have under this Section 13 except to the extent that it has been prejudiced in any material respect by such failure or from any liability which it may have otherwise). In case any such action is brought against any indemnified party, and it notifies an indemnifying party of the commencement thereof, the indemnifying party will be entitled to participate therein and, to the extent it may elect by written notice delivered to the indemnified party promptly (but, in any event, within 30 days) after receiving the aforesaid notice from such indemnified party, to assume the defense thereof with counsel reasonably satisfactory to such indemnified party. Notwithstanding the foregoing, the indemnified party or parties shall have the right to employ its or their own counsel in any such case, but the fees and expenses of such counsel shall be at the expense of such indemnified party or parties unless (a) the employment of such counsel shall have been authorized in writing by one of the indemnifying parties in connection with the defense of such action, (b) the indemnifying parties shall not have employed counsel to have charge of the defense of such action within a reasonable time after notice of commencement of the action, or (c) such indemnified party or parties shall have reasonably concluded that there is a conflict of interest between itself or themselves and the indemnifying party in the conduct of the defense of any claim or that the interests of the indemnified party or parties are not substantially co-extensive with those of the indemnifying party (in which case the indemnifying parties shall not have the right to direct the defense of such action on behalf of the indemnified party or parties), in any of which events such fees and expenses shall be borne by the indemnifying parties (provided, however, that the indemnifying party shall be liable only for the fees and expenses of one counsel in addition to one local counsel in the jurisdiction involved. Anything in

this subsection to the contrary notwithstanding, an indemnifying party shall not be liable for any

settlement or any claim or action effected without its written consent; provided, however, that such consent was not unreasonably withheld.

(iv) If the indemnification provided for in paragraphs (i) and (ii) of this Section 13 shall for any reason be unavailable to an indemnified party in respect of any loss, claim, damage or liability, or any action in respect thereof, referred to in Section 13, then the indemnifying party shall in lieu of indemnifying the indemnified party contribute to the amount paid or payable by such indemnified party as a result of such loss, claim, damage or liability, or action in respect thereof, in such proportion as shall be appropriate to reflect the relative benefits received by the Mortgage Loan Seller on the one hand and the Purchaser on the other from the purchase and sale of the Mortgage Loans, the offering of the Certificates and the other transactions contemplated hereunder. No person found liable for a fraudulent misrepresentation shall be entitled to contribution from any person who is not also found liable for such fraudulent misrepresentation.

(v) The parties hereto agree that reliance by an indemnified party on any publicly available information or any information or directions furnished by an indemnifying party shall not constitute negligence, bad faith or willful misconduct by such indemnified party.

SECTION 14. Notices. All demands, notices and communications hereunder shall be in writing but may be delivered by facsimile transmission subsequently confirmed in writing. Notices to the Mortgage Loan Seller shall be directed to MortgageIT, Inc., 00 Xxxxxx Xxxx, Xxx Xxxx, Xxx Xxxx 00000 (Telecopy: (212-363-4647)), Attention: Chief Credit Officer, and notices to the Purchaser shall be directed to Structured Asset Mortgage Investments II Inc., 000 Xxxxxxx Xxxxxx, Xxx Xxxx, Xxx Xxxx 00000 (Telecopy: (212-272-7206)), Attention: Xxxxx Xxxxxxxxxxx; or to any other address as may hereafter be furnished by one party to the other party by like notice. Any such demand, notice or communication hereunder shall be deemed to have been received on the date received at the premises of the addressee (as evidenced, in the case of registered or certified mail, by the date noted on the return receipt) provided that it is received on a Business Day during normal business hours and, if received after normal business hours, then it shall be deemed to be received on the next Business Day.

SECTION 15. Transfer of Mortgage Loans. The Purchaser retains the right to assign the Mortgage Loans and any or all of its interest under this Agreement to the Trustee without the consent of the Mortgage Loan Seller, and, upon such assignment, the Trustee shall succeed to the applicable rights and obligations of the Purchaser hereunder; provided, however, the Purchaser shall remain entitled to the benefits set forth in Sections 11, 13 and 17 hereto and as provided in Section 2(i). Notwithstanding the foregoing, the sole and exclusive right and remedy of the Trustee with respect to a breach of a representation or warranty of the Mortgage Loan Seller shall be the cure, purchase or substitution obligations of the Mortgage Loan Seller contained in Sections 5 and 7 hereof.

SECTION 16. Termination. This Agreement may be terminated (a) by the mutual consent of the parties hereto prior to the Closing Date, (b) by the Purchaser, if the conditions to the Purchaser's obligation to close set forth under Section 10(1) hereof are not fulfilled as and when required to be fulfilled or (c) by the Mortgage Loan Seller, if the conditions to the Mortgage Loan Seller's obligation to close set forth under Section 10(2) hereof are not fulfilled as and when required to be fulfilled. In the event of termination pursuant to clause (b), the

Mortgage Loan Seller shall pay, and in the event of termination pursuant to clause (c), the Purchaser shall pay, all reasonable out-of-pocket expenses incurred by the other in connection with the transactions contemplated by this Agreement. In the event of a termination pursuant to clause (a), each party shall be responsible for its own expenses.

SECTION 17. Representations, Warranties and Agreements to Survive Delivery. All representations, warranties and agreements contained in this Agreement, or contained in certificates of officers of the Mortgage Loan Seller submitted pursuant hereto, shall remain operative and in full force and effect and shall survive delivery of the Mortgage Loans to the Purchaser (and by the Purchaser to the Trustee). Subsequent to the delivery of the Mortgage Loans to the Purchaser, the Mortgage Loan Seller's representations and warranties contained herein with respect to the Mortgage Loans shall be deemed to relate to the Mortgage Loans actually delivered to the Purchaser and included in the Final Mortgage Loan Schedule and any Substitute Mortgage Loan and not to those Mortgage Loans deleted from the Preliminary Mortgage Loan Schedule pursuant to Section 3 hereof prior to the Closing or any Deleted Mortgage Loan.

SECTION 18. Severability. If any provision of this Agreement shall be prohibited or invalid under applicable law, this Agreement shall be ineffective only to such extent, without invalidating the remainder of this Agreement.

SECTION 19. Counterparts. This Agreement may be executed in counterparts, each of which will be an original, but which together shall constitute one and the same agreement.

SECTION 20. Amendment. This Agreement cannot be amended or modified in any manner without the prior written consent of each party.

SECTION 21. GOVERNING LAW. THIS AGREEMENT SHALL BE DEEMED TO HAVE BEEN MADE AND PERFORMED IN THE STATE OF NEW YORK AND SHALL BE INTERPRETED IN ACCORDANCE WITH THE LAWS OF SUCH STATE, WITHOUT REGARD TO CONFLICT OF LAWS PRINCIPLES OF SUCH STATE.

SECTION 22. Further Assurances. Each of the parties agrees to execute and deliver such instruments and take such actions as another party may, from time to time, reasonably request in order to effectuate the purpose and to carry out the terms of this Agreement including any amendments hereto which may be required by either Rating Agency.

SECTION 23. Successors and Assigns. This Agreement shall bind and inure to the benefit of and be enforceable by the Mortgage Loan Seller and the Purchaser and their permitted successors and assigns and, to the extent specified in Section 13 hereof, Bear Xxxxxxx, and their directors, officers and controlling persons (within the meaning of federal securities laws). The Mortgage Loan Seller acknowledges and agrees that the Purchaser may assign its rights under this Agreement (including, without limitation, with respect to the Mortgage Loan Seller's representations and warranties respecting the Mortgage Loans) to the Trustee. Any person into which the Mortgage Loan Seller may be merged or consolidated (or any person resulting from any merger or consolidation involving the Mortgage Loan Seller), any person resulting from a change in form of the Mortgage Loan Seller or any person succeeding to the

business of the Mortgage Loan Seller, shall be considered the "successor" of the Mortgage Loan Seller hereunder and shall be considered a party hereto without the execution or filing of any paper or any further act or consent on the part of any party hereto. Except as provided in the two preceding sentences and in Section 15 hereto, this Agreement cannot be assigned, pledged or hypothecated by either party hereto without the written consent of the other parties to this Agreement and any such assignment or purported assignment shall be deemed null and void.

SECTION 24. The Mortgage Loan Seller and the Purchaser. The Mortgage Loan Seller and the Purchaser will keep in full effect all rights as are necessary to perform their respective obligations under this Agreement.

SECTION 25. Entire Agreement. This Agreement contains the entire agreement and understanding between the parties with respect to the subject matter hereof, and supersedes all prior and contemporaneous agreements, understandings, inducements and conditions, express or implied, oral or written, of any nature whatsoever with respect to the subject matter hereof.

SECTION 26. No Partnership. Nothing herein contained shall be deemed or construed to create a partnership or joint venture between the parties hereto.

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IN WITNESS WHEREOF, the parties hereto have caused their names to be signed hereto by their respective duly authorized officers as of the date first above written.

MORTGAGEIT, INC.

By:

Name:

Title:

STRUCTURED ASSET MORTGAGE
INVESTMENTS II INC.

By:

Name: Xxxxx Xxxxxxxxxxx

Title: Vice President

EXHIBIT 1

CONTENTS OF MORTGAGE FILE

With respect to each Mortgage Loan, the Mortgage File shall include each of the following items, which shall be available for inspection by the Purchaser or its designee, and which shall be delivered to the Purchaser or its designee pursuant to the terms of the Agreement:

(i) The original Mortgage Note, endorsed without recourse to the order of the Trustee and showing an unbroken chain of endorsements from the original payee thereof to the Person endorsing it to the Trustee, or lost note affidavit;

(ii) The original Mortgage and, if the related Mortgage Loan is a MOM Loan, noting the presence of the MIN and language indicating that such Mortgage Loan is a MOM Loan, which shall have been recorded (or if the original is not available, a copy), with evidence of such recording indicated thereon (or if the original Security Instrument, assignments to the Trustee or intervening assignments thereof which have been delivered, are being delivered or will, upon receipt of recording information relating to the Security Instrument required to be included thereon, be delivered to recording offices for recording and have not been returned to the Mortgage Loan Seller in time to permit their recording as specified in Section 2.01(b) of the Pooling and Servicing Agreement, shall be in recordable form);

(iii) Unless the Mortgage Loan is a MOM Loan, a certified copy of the assignment (which may be in the form of a blanket assignment if permitted in the jurisdiction in which the Mortgaged Property is located) to "Deutsche Bank National Trust Company, as Trustee", with evidence of recording with respect to each Mortgage Loan in the name of the Trustee thereon (or if the original Security Instrument, assignments to the Trustee or intervening assignments thereof which have been delivered, are being delivered or will, upon receipt of recording information relating to the Security Instrument required to be included thereon, be delivered to recording offices for recording and have not been returned to the Mortgage Loan Seller in time to permit their delivery as specified in Section 2.01(b) of the Pooling and Servicing Agreement, the Mortgage Loan Seller may deliver a true copy thereof with a certification by the Mortgage Loan Seller, on the face of such copy, substantially as follows: "Certified to be a true and correct copy of the original, which has been transmitted for recording");

(iv) All intervening assignments of the Security Instrument, if applicable and only to the extent available to the Mortgage Loan Seller with evidence of recording thereon;

(v) The original or a copy of the policy or certificate of primary mortgage guaranty insurance, to the extent available, if any;

(vi) The original policy of title insurance or mortgagee's certificate of title insurance or commitment or binder for title insurance; and

(vii)

The originals of all modification agreements, if applicable and available.

EXHIBIT 2

MORTGAGE LOAN SCHEDULE INFORMATION

The Preliminary and Final Mortgage Loan Schedules shall set forth the following information with respect to each Mortgage Loan:

(a)	the loan number;

(b)	the Mortgagor's name;

(c)	the city, state and zip code of the Mortgaged Property;

(d)	the property type;

(e)	the Mortgage Interest Rate;

(f)	the Servicing Fee Rate;

(g)	the Net Rate;

(h)	the original term;

(i)	the maturity date;

(j)	the stated remaining term to maturity;

(k)	the original Principal Balance;

(1)	the first payment date;

(m)	the principal and interest payment in effect as of the Cut-off Date;

(n)	the unpaid Principal Balance as of the Cut-off Date;

(o)	the Loan-to-Value Ratio at origination;

(p)	the paid-through date;

(q)	the insurer of any Primary Mortgage Insurance Policy;

(r)	the Gross Margin, if applicable;

(s)	the Maximum Lifetime Mortgage Rate, if applicable;

(t)	the Minimum Lifetime Mortgage Rate, if applicable;

(u)	the Periodic Rate Cap, if applicable;

(v)	the number of days delinquent, if any;

(w)	a code indicating whether the Mortgage Loan is negatively amortizing; and

(x)	which Mortgage Loans adjust after an initial fixed-rate period of one, two, three, five, seven or ten years.

Such schedule also shall set forth for all of the Mortgage Loans, the total number of Mortgage Loans, the total of each of the amounts described under (k) and (n) above, the weighted average by principal balance as of the Cut-off Date of each of the rates described under (e), (f) and (g) above, and the weighted average remaining term to maturity by unpaid principal balance as of the Cut-off Date.

EXHIBIT 3

MORTGAGE LOAN SELLER'S INFORMATION

All information in the Prospectus Supplement relating to the Mortgage Loan Seller, the Servicer, the Originator, the Mortgage Loans and the origination and servicing of the Mortgage Loans, including without limitation as described under the following Sections: "SUMMARY OF TERMS—THE MORTGAGE POOL," "THE MASTER SERVICER, THE SERVICER AND THE SUBSERVICER,” “MORTGAGE LOAN ORIGINATION” and "SCHEDULE A -- CERTAIN CHARACTERISTICS OF THE MORTGAGE LOANS."

EXHIBIT 4

PURCHASER'S INFORMATION

All information in the Prospectus Supplement and the Prospectus, except the Mortgage Loan Seller's Information.

EXHIBIT 5

SCHEDULE OF LOST NOTES

Available Upon Request

EXHIBIT 6

Standard & Poor’s LEVELS® Glossary, Version 5.6b Revised, Appendix E

REVISED July 11, 2005

APPENDIX E – Standard & Poor’s Anti-Predatory Lending Categorization

Standard & Poor’s has categorized loans governed by anti-predatory lending laws in the Jurisdictions listed below into three categories based upon a combination of factors that include (a) the risk exposure associated with the assignee liability and (b) the tests and thresholds set forth in those laws. Note that certain loans classified by the relevant statute as Covered are included in Standard & Poor’s High Cost Loan Category because they included thresholds and tests that are typical of what is generally considered High Cost by the industry.

Standard & Poor’s High Cost Loan Categorization
State/Jurisdiction	Name of Anti-Predatory Lending Law/Effective Date	Category under Applicable Anti-Predatory Lending Law
Arkansas	Arkansas Home Loan Protection Act, Ark. Code Xxx. §§ 00-00-000 et seq. Effective July 16, 2003	High Cost Home Loan
Cleveland Heights, OH	Ordinance No. 72-2003 (PSH), Mun. Code §§ 757.01 et seq. Effective June 2, 2003	Covered Loan
Colorado	Consumer Equity Protection, Colo. Stat. Xxx. §§ 5-3.5-101 et seq. Effective for covered loans offered or entered into on or after January 1, 2003. Other provisions of the Act took effect on June 7, 2002	Covered Loan
Connecticut	Connecticut Abusive Home Loan Lending Practices Act, Conn. Gen. Stat. §§ 36a-746 et seq. Effective October 1, 2001	High Cost Home Loan
District of Columbia	Home Loan Protection Act, D.C. Code §§ 26-1151.01 et seq. Effective for loans closed on or after January 28, 2003	Covered Loan

Florida	Fair Lending Act, Fla. Stat. Xxx. §§ 494.0078 et seq. Effective October 2, 2002	High Cost Home Loan
Georgia (Oct. 1, 2002 – Mar. 6, 2003)	Georgia Fair Lending Act, Ga. Code Xxx. §§ 7-6A-1 et seq. Effective October 1, 2002 – March 6, 2003	High Cost Home Loan
Georgia as amended (Mar. 7, 2003 – current)	Georgia Fair Lending Act, Ga. Code Xxx. §§ 7-6A-1 et seq. Effective for loans closed on or after March 7, 2003	High Cost Home Loan
HOEPA Section 32	Home Ownership and Equity Protection Act of 1994, 15 U.S.C. § 1639, 12 C.F.R. §§ 226.32 and 226.34 Effective October 1, 1995, amendments October 1, 2002	High Cost Loan
Illinois	High Risk Home Loan Act, Ill. Comp. Stat. tit. 815, §§ 137/5 et seq. Effective January 1, 2004 (prior to this date, regulations under Residential Mortgage License Act effective from May 14, 2001)	High Risk Home Loan
Kansas	Consumer Credit Code, Kan. Stat. Xxx. §§ 16a-1-101 et seq. Sections 16a-1-301 and 16a-3-207 became effective April 14, 1999; Section 16a-3-308a became effective July 1, 1999	High Loan to Value Consumer Loan (id. § 16a-3-207) and;
Kansas		High APR Consumer Loan (id. § 16a-3-308a)
Kentucky	2003 KY H.B. 287 – High Cost Home Loan Act, Ky. Rev. Stat. §§ 360.100 et seq. Effective June 24, 2003	High Cost Home Loan
Maine	Truth in Lending, Me. Rev. Stat. tit. 9-A, §§ 8-101 et seq. Effective September 29, 1995 and as amended from time to time	High Rate High Fee Mortgage
Massachusetts	Part 40 and Part 32, 209 C.M.R. §§ 32.00 et seq. and 209 C.M.R. §§ 40.01 et seq. Effective March 22, 2001 and amended from time to time	High Cost Home Loan

Nevada	Assembly Xxxx No. 284, Nev. Rev. Stat. §§ 598D.010 et seq. Effective October 1, 2003	Home Loan
New Jersey	New Jersey Home Ownership Security Act of 2002, N.J. Rev. Stat. §§ 46:10B-22 et seq. Effective for loans closed on or after November 27, 2003	High Cost Home Loan
New Mexico	Home Loan Protection Act, N.M. Rev. Stat. §§ 58-21A-1 et seq. Effective as of January 1, 2004; Revised as of February 26, 2004	High Cost Home Loan
New York	N.Y. Banking Law Article 6-l Effective for applications made on or after April 1, 2003	High Cost Home Loan
North Carolina	Restrictions and Limitations on High Cost Home Loans, N.C. Gen. Stat. §§ 24-1.1E et seq. Effective July 1, 2000; amended October 1, 2003 (adding open-end lines of credit)	High Cost Home Loan
Ohio	H.B. 386 (codified in various sections of the Ohio Code), Ohio Rev. Code Xxx. §§ 1349.25 et seq. Effective May 24, 2002	Covered Loan
Oklahoma	Consumer Credit Code (codified in various sections of Title 14A) Effective July 1, 2000; amended effective January 1, 2004	Subsection 10 Mortgage
South Carolina	South Carolina High Cost and Consumer Home Loans Act, S.C. Code Xxx. §§ 37-23-10 et seq. Effective for loans taken on or after January 1, 2004	High Cost Home Loan
West Virginia	West Virginia Residential Mortgage Lender, Broker and Servicer Act, W. Va. Code Xxx. §§ 31-17-1 et seq. Effective June 5, 0000	Xxxx Xxxxxxxx Mortgage Loan Act Loan

Standard & Poor’s Covered Loan Categorization

State/Jurisdiction

Name of Anti-Predatory Lending Law/Effective Date

Category under Applicable Anti-Predatory Lending Law

Georgia (Oct. 1, 2002 – Mar. 6, 2003)

Georgia Fair Lending Act, Ga. Code Xxx. §§ 7-6A-1 et seq.

Effective October 1, 2002 – March 6, 2003

Covered Loan

New Jersey

New Jersey Home Ownership Security Act of 2002, N.J. Rev. Stat. §§ 46:10B-22 et seq.

Effective November 27, 2003 – July 5, 2004

Covered Home Loan

Standard & Poor’s Home Loan Categorization
State/Jurisdiction	Name of Anti-Predatory Lending Law/Effective Date	Category under Applicable Anti-Predatory Lending Law
Georgia (Oct. 1, 2002 – Mar. 6, 2003)	Georgia Fair Lending Act, Ga. Code Xxx. §§ 7-6A-1 et seq. Effective October 1, 2002 – March 6, 2003	Home Loan
New Jersey	New Jersey Home Ownership Security Act of 2002, N.J. Rev. Stat. §§ 46:10B-22 et seq. Effective for loans closed on or after November 27, 2003	Home Loan
New Mexico	Home Loan Protection Act, N.M. Rev. Stat. §§ 58-21A-1 et seq. Effective as of January 1, 2004; Revised as of February 26, 2004	Home Loan
North Carolina	Restrictions and Limitations on High Cost Home Loans, N.C. Gen. Stat. §§ 24-1.1E et seq. Effective July 1, 2000; amended October 1, 2003 (adding open-end lines of credit)	Consumer Home Loan

South Carolina

South Carolina High Cost and Consumer Home Loans Act, S.C. Code Xxx. §§ 37-23-10 et seq.

Effective for loans taken on or after January 1, 2004

Consumer Home Loan

SCHEDULE A

REQUIRED RATINGS FOR EACH CLASS OF CERTIFICATES

Certificates

Offered Certificates	S&P	Xxxxx’x
Class I-A-1	AAA	Aaa
Class I-A-2	AAA	Aaa
Class I-A-3	AAA	Aaa
Class I-X-1	AAA	Aaa
Class I-M-X	AA	Aa2
Class I-B-1	AA	Aa2
Class I-B-2	A+	A2
Class I-B-3	BBB	Baa2
Class R	AAA	NR

None of the above ratings has been lowered, qualified or withdrawn since the dates of issuance of such ratings by the Rating Agencies.

SCHEDULE B

MORTGAGE LOAN SCHEDULE

(Provided upon request)

EXHIBIT K

FORM OF TRUSTEE LIMITED POWER OF ATTORNEY

KNOW ALL MEN BY THESE PRESENTS, that Deutsche Bank National Trust Company, a banking corporation, having a place of business at 0000 X. Xx. Xxxxxx Xxxxx, Xxxxx Xxx, Xxxxxxxxxx, as Trustee (and in no personal or other representative capacity) under the Pooling and Servicing Agreement, dated as of November 1, 2005, by and among Structured Asset Mortgage Investments II Inc., the Trustee and MortgageIT, Inc. (as amended, restated, supplemented or otherwise modified from time to time, the “Agreement” capitalized terms not defined herein have the definitions assigned to such terms in the Agreement), relating to the MortgageIT Trust 2005-AR1, Mortgage Pass-Through Certificates, Series 2005-AR15, hereby appoints _______________, in its capacity as Servicer under the Agreement, as the Trustee’s true and lawful Special Attorney-in-Fact, in the Trustee’s name, place and stead and for the Trustee’s benefit, but only in its capacity as Trustee aforesaid, to perform all acts and execute all documents as may be customary, necessary and appropriate to effectuate the following enumerated transactions in respect of any mortgage, deed of trust, promissory note or real estate owned from time to time owned (beneficially or in title, whether the Trustee is named therein as mortgagee or beneficiary or has become mortgagee or beneficiary by virtue of endorsement, assignment or other conveyance) or held by or registered to the Trustee (directly or through custodians or nominees), or in respect of which the Trustee has a security interest or other lien, all as provided under the applicable Agreement and only to the extent the respective Trustee has an interest therein under the Agreement, and in respect of which the Servicer is acting as servicer pursuant to the Agreement (the “Mortgage Documents”).

This appointment shall apply to the following enumerated transactions under the Agreement only:

The modification or re-recording of any Mortgage Document for the purpose of correcting it to conform to the original intent of the parties thereto or to correct title errors discovered after title insurance was issued and where such modification or re-recording does not adversely affect the lien under the Mortgage Document as insured.

2. The subordination of the lien under a Mortgage Document to an easement in favor of a public utility company or a state or federal agency or unit with powers of eminent domain including, without limitation, the execution of partial satisfactions/releases, partial reconveyances and the execution of requests to trustees to accomplish same.

3. The conveyance of the properties subject to a Mortgage Document to the applicable mortgage insurer, or the closing of the title to the property to be acquired as real estate so owned, or conveyance of title to real estate so owned.

4. The completion of loan assumption and modification agreements in respect of Mortgage Documents.

5. The full or partial satisfaction/release of a Mortgage Document or full conveyance upon payment and discharge of all sums secured thereby, including, without limitation, cancellation of the related note.

6. The assignment of any Mortgage Document, in connection with the repurchase of the mortgage loan secured and evidenced thereby.

7. The full assignment of a Mortgage Document upon payment and discharge of all sums secured thereby in conjunction with the refinancing thereof, including, without limitation, the assignment of the related note.

8. With respect to a Mortgage Document, the foreclosure, the taking of a deed in lieu of foreclosure, or the completion of judicial or non-judicial foreclosure or termination, cancellation or rescission of any such foreclosure, including, without limitation, any and all of the following acts:

the substitution of trustee(s) serving under a deed of trust, in accordance with state law and the deed of trust;

	b.	the preparation and issuance of statements of breach or non-performance;

	c.	the preparation and filing of notices of default and/or notices of sale;

	d.	the cancellation/rescission of notices of default and/or notices of sale;

	e.	the taking of a deed in lieu of foreclosure; and

	f.	the preparation and execution of such other documents and performance of such other actions as may be necessary under the terms of the Mortgage Document or state law to expeditiously complete said transactions in paragraphs 8(a) through 8(e), above.

9. Demand, xxx for, recover, collection and receive each and every sum of money, debt, account and interest (which now is, or hereafter shall become due and payable) belonging to or claimed by the Trustee under the Mortgage Documents, and to use or take any lawful means for recovery thereof by legal process or otherwise.

10. Endorse on behalf of the Trustee all checks, drafts and/or negotiable instruments made payable to the Trustee in respect of the Mortgage Documents.

The Trustee gives the Special Attorney-in-Fact full power and authority to execute such instruments and to do and perform all and every act and thing necessary and proper to carry into effect the power or powers granted by this Limited Power of Attorney, subject to the terms and conditions set forth in the Agreement including the standard of care applicable to the servicer in the Agreement, and hereby does ratify and confirm what such Special Attorney-in-Fact shall lawfully do or cause to be done by authority hereof.

IN WITNESS WHEREOF, the Trustee has caused its corporate name and seal to be hereto signed and affixed and these presents to be acknowledged by its duly elected and authorized officer this ___ day of ___ , 2005.

Deutsche Bank National Trust Company,

as Trustee

By:

Name:

Title:

WITNESS:		WITNESS:




Name:		Name:
Title:		Title:

STATE OF ___________

Article II.	SS
Article III.	COUNTY OF _________

On ______________, 2005, before me, the undersigned, a Notary Public in and for said state, personally appeared __________________, personally known to me to be the person whose name is subscribed to the within instrument, and such person acknowledged to me that such person executed the within instrument in such person’s authorized capacity as a Senior Vice President of Deutsche Bank Trust Company, National Association, and that by such signature on the within instrument the entity upon behalf of which such person acted executed the instrument.

WITNESS my hand and official seal.

______________________________

Notary Public

EXHIBIT L

[RESERVED]

EXHIBIT M

[RESERVED]

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STRUCTURED ASSET MORTGAGE INVESTMENTS II INC., DEPOSITOR

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