Common use of Waivers, Modifications and Amendments Clause in Contracts

Waivers, Modifications and Amendments. Neither this Agreement nor any term hereof may be changed, waived, discharged or terminated except by a writing signed by the party against whom enforcement of such change, waiver, discharge or termination is sought. If the foregoing is in accordance with your understanding of our agreement, please sign and return to the undersigned a counterpart hereof, whereupon this instrument, along with all counterparts, and your acceptance shall represent a binding agreement between the Company, the Underwriters and the Mortgage Loan Sellers signing this Agreement for purposes of Section 4(k), Section 5(g) and, except in the case of LBHI, Section 7. Very truly yours, STRUCTURED ASSET SECURITIES CORPORATION II By: /s/ David Nass --------------------------------- Name: David Nass Title: Senior Vice President Confirmed and accepted as of the date first above written: LEHMAN BROTHERS INC. Xx: /s/ Charlene Thomas -------------------------- Name: Charlene Thomas Title: Xxxxxx Xxxx Xresident UBS SECURITIES LLC By: /s/ Brian E. O'Hara -------------------------- Name: Brian E. O'Hara Title: Xxxxxxxx Xx: /s/ Jeffrey N. Lavine -------------------------- Name: Jeffrey N. Lavine Titxx: Xxxxxxxx Xxxxctor BANC OF AMERICA SECURITIES LLC By: /s/ Stephen L. Hogue -------------------------- Name: Stephen L. Hogue Titlx: Xxxxxxxxx Confirmed and accepted as of the date first above written, solely for purposes of Sections 4(k), 5(g) and 7: UBS REAL ESTATE SECURITIES INC. By: /s/ Brian E. O'Hara -------------------------- Name: Brian E. O'Hara Title: Xxxxxxxx Xx: /s/ Jeffrey N. Lavine -------------------------- Name: Jeffrey N. Lavine Titxx: Xxxxxxxx Xxxxctor Confirmed and accepted as of the date first above written, solely for purposes of Section 4(k) and 5(g): LEHMAN BROTHERS HOLDIXXX XXC. By: /s/ Charlene Thomas -------------------------- Name: Charlene Thomas Title: Xxxxxx Xxxx Xresident SCHEDULE I Underwriting Agreement, dated as of August 24, 2007 Title and Description of the LB-UBS Commercial Mortgage Trust 2007-C6, Certificates: Commercial Mortgage Pass-Through Certificates, Series 2007-C6, Class A-1, Class A-2, Class X-0, Xxxxx X-XX, Xxxxx X-4, Class A-1A, Class A-M, Class A-J, Class B, Class C, Class D, Class E Class F and Class X Certificates

Waivers, Modifications and Amendments. Neither this Agreement nor any term hereof may be changed, waived, discharged or terminated except by a writing signed by the party against whom enforcement of such change, waiver, discharge or termination is sought. If the foregoing is in accordance with your understanding of our agreement, please sign and return to the undersigned a counterpart hereof, whereupon this instrument, along with all counterparts, and your acceptance shall represent a binding agreement between the Company, the Underwriters and the Mortgage Loan Sellers Seller signing this Agreement for purposes of Section 4(k), Section 5(g) and, except in the case of LBHI, and Section 7. Very truly yours, STRUCTURED ASSET SECURITIES CORPORATION II By: /s/ David Nass --------------------------------- ------------------------------------ Name: David Nass Title: Senior Vice President Seniox Xxxx Xxxsident Confirmed and accepted as of the date first above written: LEHMAN BROTHERS INC. XxBy: /s/ Charlene Thomas -------------------------- ------------------------------------ Name: Charlene Thomas Xxxxxxxx Xxxxxx Title: Xxxxxx Xxxx Xresident UBS SECURITIES LLC Senior Vice President MORGAN STANLEY & XX XXXXXXXXXXXD By: /s/ Brian E. O'Hara -------------------------- Warren H. Friend ------------------------------------ Name: Brian E. O'Hara Xxxxxx X. Friend Title: Xxxxxxxx Xx: /s/ Jeffrey N. Lavine -------------------------- Name: Jeffrey N. Lavine Titxx: Xxxxxxxx Xxxxctor BANC OF AMERICA SECURITIES LLC By: /s/ Stephen L. Hogue -------------------------- Name: Stephen L. Hogue Titlx: Xxxxxxxxx Managing Director Confirmed and accepted as of the date first above written, solely for purposes of Sections 4(k), 5(g) and 7: UBS REAL ESTATE SECURITIES INC. By: /s/ Brian E. O'Hara -------------------------- Name: Brian E. O'Hara Title: Xxxxxxxx Xx: /s/ Jeffrey N. Lavine -------------------------- Name: Jeffrey N. Lavine Titxx: Xxxxxxxx Xxxxctor Confirmed and accepted as of the date acceptxx xx xx xxx xxxe first above written, solely for purposes of Section 2, Section 3, Section 4(k), Section 5(g) and 5(g): LEHMAN BROTHERS HOLDIXXX XXC. Section 7: TEACHERS INSURANCE AND ANNUITY ASSOCIATION OF AMERICA By: /s/ Charlene Thomas -------------------------- NameRosemary J. Wagner ------------------------------------ Namx: Charlene Thomas Xxxxxxxxx X. Xxgner Title: Xxxxxx Xxxx Xresident SCHEDULE Director XXXXXXXX I Underwriting Agreement, dated as of August 242, 2007 Title and Description of the LB-UBS Certificates: TIAA Seasoned Commercial Mortgage Trust 2007-C6C4, Certificates: Commercial Mortgage Pass-Through Certificates, Series 2007-C6C4, Class A-1, Class A-2, Class X-0, Xxxxx X-XX, Xxxxx X-4A-3, Class A-1A, Class A-M, Class A-J, Class B, Class C, Class D, Class E and Class F and Class X Certificates

Waivers, Modifications and Amendments. Neither this Agreement nor any term hereof may be changed, waived, discharged or terminated except by a writing signed by the party against whom enforcement of such change, waiver, discharge or termination is sought. If the foregoing is in accordance with your understanding of our agreement, please sign and return to the undersigned a counterpart hereof, whereupon this instrument, along with all counterparts, and your acceptance shall represent a binding agreement between the Company, the Underwriters Company and the Mortgage Loan Sellers signing this Agreement for purposes of Section 4(k), Section 5(g) and, except in the case of LBHI, Section 7Underwriters. Very truly yours, STRUCTURED ASSET SECURITIES CORPORATION II By: /s/ David Nass --------------------------------- Xxxx Xxxxxxx ------------------------------------ Name: David Nass Xxxx Xxxxxxx Title: Senior Vice President Confirmed and accepted as of the date first above written: LEHMAN XXXXXX BROTHERS INC. Xx: /s/ Charlene Thomas -------------------------- Name: Charlene Thomas Title: Xxxxxx Xxxx Xresident UBS DEUTSCHE BANK SECURITIES LLC INC. By: /s/ Brian E. O'Hara -------------------------- Name: Brian E. O'Hara Title: Xxxxxxxx Xx: /s/ Jeffrey N. Lavine -------------------------- Name: Jeffrey N. Lavine Titxx: Xxxxxxxx Xxxxctor BANC OF AMERICA SECURITIES LLC Xxxx Xxx Xxxxxx By: /s/ Stephen L. Hogue -------------------------- Xxx X. Xxxxxxx --------------------------------- ----------------------------------- Name: Stephen L. Hogue TitlxXxxx Xxx Xxxxxx Name: Xxxxxxxxx Xxx X. Xxxxxxx Title: Managing Director Title: Director XXXXXX XXXXXXX & CO. INCORPORATED By: /s/ Xxx XxXxxxxxx ----------------------------------- Name: Xxx XxXxxxxxx Title: Director By: /s/ Xxxxxx X. Friend --------------------------------- Name: Xxxxxx X. Friend Title: Managing Director Confirmed and accepted as of the date first above written, solely for purposes of Sections 4(k), SECTIONS 5(g) and 7: UBS REAL ESTATE SECURITIES INC. PRINCIPAL FINANCE LLC By: /s/ Brian E. O'Hara -------------------------- Xxxxx X. Xxxxxx --------------------------------- Name: Brian E. O'Hara Xxxxx X. Xxxxxx Title: Xxxxxxxx Xx: /s/ Jeffrey N. Lavine -------------------------- Name: Jeffrey N. Lavine Titxx: Xxxxxxxx Xxxxctor Confirmed and accepted as of the date first above written, solely for purposes of Section 4(k) and 5(g): LEHMAN BROTHERS HOLDIXXX XXC. Executive Director By: /s/ Charlene Thomas -------------------------- Xxxxx Xxxxx --------------------------------- Name: Charlene Thomas Xxxxx Xxxxx Title: Xxxxxx Xxxx Xresident Director SCHEDULE I Underwriting Agreement, dated as of August 24May 9, 2007 2000. Title and Description of the Certificates: LB-UBS Commercial Mortgage Trust 20072000-C6C3, Certificates: Commercial Mortgage Pass-Through Certificates, Series 20072000-C6C3, Class A-1, Class A-2, Class X-0, Xxxxx X-XX, Xxxxx X-4, Class A-1A, Class A-M, Class A-J, Class B, Class C, Class D, Class E E, Class F F, Class G and Class X. Cut-off Date: May 11, 2000 Expected Closing Date: May 18, 2000 CERTIFICATES ---------------------------------------------------------------------------------------------------------------------------- CLASS A-1 CLASS A-2 CLASS B CLASS C CLASS D CLASS E CLASS F ---------------------------------------------------------------------------------------------------------------------------- Initial Aggregate Principal or Notional Amount $400,000,000 $641,288,000 $71,813,000 $48,964,000 $19,585,000 $13,057,000 $13,057,000 ---------------------------- -------------- ------------- ------------ ------------ ------------- ------------ ------------ Initial Pass-Through Rate 7.950% 7.950% 7.950% 7.950% 7.950% 7.950% 7.950% ---------------------------- -------------- ------------- ------------ ------------ ------------- ------------ ------------ Rating(2) Aaa/AAA Aaa/AAA Xx0/XX X0/X CertificatesX0/X- Xxx0/XXX+ Xxx0/XXX ---------------------------- -------------- ------------- ------------ ------------ ------------- ------------ ------------ Purchase Price(3) 100.08773% 98.97495% 98.07151% 97.31586% 96.69600% 94.44960% 93.96522% ---------------------------------------------------------------------------------------------------------------------------- ---------------------------------------------------------------------------------------------------------------------------- ---------------------------------------------------------------- CLASS G CLASS X ---------------------------------------------------------------- Initial Aggregate Principal or Notional Amount $11,751,000 $1,305,691,486(1) ---------------------------- ------------ --------------------- Initial Pass-Through Rate 7.950% 0.594% ---------------------------- ------------ --------------------- Rating(2) Baa3/BBB- Aaa/AAA ---------------------------- ------------ --------------------- Purchase Price(3) 91.18551% 2.57526% ---------------------------------------------------------------- ---------------------------------------------------------------- ----------

Waivers, Modifications and Amendments. Neither this Agreement nor any term hereof may be changed, waived, discharged or terminated except by a writing signed by the party against whom enforcement of such change, waiver, discharge or termination is sought. If the foregoing is in accordance with your understanding of our agreement, please sign and return to the undersigned a counterpart hereof, whereupon this instrument, along with all counterparts, and your acceptance shall represent a binding agreement between the Company, the Underwriters and the Mortgage Loan Sellers signing this Agreement for purposes of Section 4(k), Section 5(g) and, except in the case of LBHI, Section and 7. Very truly yours, STRUCTURED ASSET SECURITIES CORPORATION II By: /s/ David Nass --------------------------------- Xxxxx Xxxx ----------------------------------- Name: David Nass Xxxxx Xxxx Title: Senior Vice President Confirmed and accepted as of the date first above written: LEHMAN XXXXXX BROTHERS INC. XxBy: /s/ Charlene Thomas -------------------------- Xxxxxx X. Xxxxxxxx ---------------------------------- Name: Charlene Thomas Xxxxxx X. Xxxxxxxx Title: Xxxxxx Xxxx Xresident Vice President UBS SECURITIES LLC By: /s/ Brian E. O'Hara -------------------------- Xxxxxx Xxxxxxxxx ---------------------------------- Name: Brian E. O'Hara Xxxxxx Xxxxxxxxx Title: Xxxxxxxx Xx: /s/ Jeffrey N. Lavine -------------------------- Name: Jeffrey N. Lavine Titxx: Xxxxxxxx Xxxxctor BANC OF AMERICA SECURITIES LLC Executive Director By: /s/ Stephen L. Hogue -------------------------- Xxxx X. Xxxxx ---------------------------------- Name: Stephen L. Hogue TitlxXxxx X. Xxxxx Title: Xxxxxxxxx Executive Director Confirmed and accepted as of the date first above written, solely for purposes of Sections 4(k), 5(g) and 7: UBS REAL ESTATE SECURITIES INVESTMENTS INC. By: /s/ Brian E. O'Hara -------------------------- Xxxxxx X. Xxxxxxxxx ---------------------------------- Name: Brian E. O'Hara Xxxxxx X. Xxxxxxxxx Title: Xxxxxxxx XxExecutive Director By: /s/ Jeffrey N. Lavine -------------------------- Xxxx X. Xxxxx ---------------------------------- Name: Jeffrey N. Lavine TitxxXxxx X. Xxxxx Title: Xxxxxxxx Xxxxctor Executive Director Confirmed and accepted as of the date first above written, solely for purposes of Section 4(k) and 5(g): LEHMAN XXXXXX BROTHERS HOLDIXXX XXCHOLDINGS INC. By: /s/ Charlene Thomas -------------------------- Xxxxxxxxx Xxxxxxx ---------------------------------- Name: Charlene Thomas Xxxxxxxxx Xxxxxxx Title: Xxxxxx Xxxx Xresident Authorized Signatory SCHEDULE I Underwriting Agreement, dated as of August 2415, 2007 2005 Title and Description of the Certificates: LB-UBS Commercial Mortgage Trust 20072005-C6C5, Certificates: Commercial Mortgage Pass-Through Certificates, Series 20072005-C6C5, Class A-1, Class A-2, Class X-0A-3, Xxxxx XClass A-XXAB, Xxxxx X-4Class A-4, Class A-1A, Class A-M, Class A-J, Class B, Class C, Class D, Class E E, Class F and Class X X-CP Certificates

Waivers, Modifications and Amendments. Neither this Agreement nor any term hereof may be changed, waived, discharged or terminated except by a writing signed by the party against whom enforcement of such change, waiver, discharge or termination is sought. If the foregoing is in accordance with your understanding of our agreement, please sign and return to the undersigned a counterpart hereof, whereupon this instrument, along with all counterparts, and your acceptance shall represent a binding agreement between the Company, the Underwriters and the Mortgage Loan Sellers signing this Agreement for purposes of Section 4(k), Section 5(g) and, except in the case of LBHI, Section and 7. Very truly yours, STRUCTURED ASSET SECURITIES CORPORATION II By: /s/ David Nass --------------------------------- Xxxxx Xxxx -------------------------------------- Name: David Nass Xxxxx Xxxx Title: Senior Vice President Confirmed and accepted as of the date first above written: LEHMAN XXXXXX BROTHERS INC. XxBy: /s/ Charlene Thomas -------------------------- Xxxxxx X. Xxxxxxxx ------------------------------- Name: Charlene Thomas Xxxxxx X. Xxxxxxxx Title: Xxxxxx Xxxx Xresident Vice President UBS SECURITIES LLC By: /s/ Brian E. O'Hara -------------------------- Xxxxxx X. Xxxxxxxxx ------------------------------- Name: Brian E. O'Hara Xxxxxx X. Xxxxxxxxx Title: Xxxxxxxx Xx: /s/ Jeffrey N. Lavine -------------------------- Name: Jeffrey N. Lavine Titxx: Xxxxxxxx Xxxxctor BANC OF AMERICA SECURITIES LLC Executive Director By: /s/ Stephen L. Hogue -------------------------- Xxxx X. Xxxxx ------------------------------- Name: Stephen L. Hogue TitlxXxxx X. Xxxxx Title: Xxxxxxxxx Executive Director Confirmed and accepted as of the date first above written, solely for purposes of Sections 4(k), 5(g) and 7: UBS REAL ESTATE SECURITIES INVESTMENTS INC. /s/ Xxxxxx X. Xxxxxxxxx By: ------------------------------- Name: Xxxxxx X. Xxxxxxxxx Title: Executive Director By: /s/ Brian E. O'Hara -------------------------- Xxxx X. Xxxxx ------------------------------- Name: Brian E. O'Hara Xxxx X. Xxxxx Title: Xxxxxxxx Xx: /s/ Jeffrey N. Lavine -------------------------- Name: Jeffrey N. Lavine Titxx: Xxxxxxxx Xxxxctor Executive Director Confirmed and accepted as of the date first above written, solely for purposes of Section 4(k) and 5(g): LEHMAN XXXXXX BROTHERS HOLDIXXX XXCHOLDINGS INC. By: /s/ Charlene Thomas -------------------------- Xxxxxxxx Xxxxxx ------------------------------- Name: Charlene Thomas Xxxxxxxx Xxxxxx Title: Xxxxxx Xxxx Xresident Authorized Signatory SCHEDULE I Underwriting Agreement, dated as of August 24April 3, 2007 2006 Title and Description of the LB-UBS Commercial Mortgage Trust 20072006-C6C3, Certificates: Commercial Mortgage Pass-Through Certificates, Series 20072006-C6C3, Class A-1, Class A-2, Class X-0, Xxxxx X-XX, Xxxxx X-4A-3, Class A-1AA-AB, Class A-4, Class A- 1A, Class A-M, Class A-J, Class B, Class C, Class D, Class E E, Class F and Class X X-CP Certificates

Waivers, Modifications and Amendments. Neither this Agreement nor any term hereof may be changed, waived, discharged or terminated except by a writing signed by the party against whom enforcement of such change, waiver, discharge or termination is sought. If the foregoing is in accordance with your understanding of our agreement, please sign and return to the undersigned a counterpart hereof, whereupon this instrument, along with all counterparts, and your acceptance shall represent a binding agreement between the Company, the Underwriters Company and the Mortgage Loan Sellers signing this Agreement for purposes of Section 4(k), Section 5(g) and, except in the case of LBHI, Section 7Underwriters. Very truly yours, STRUCTURED ASSET SECURITIES CORPORATION II By: /s/ David Nass --------------------------------- Name: David Nass Title: Senior Vice President Confirmed and accepted as of the date first above written: LEHMAN XXXXXX BROTHERS INC. Xx: /s/ Charlene Thomas -------------------------- Name: Charlene Thomas Title: Xxxxxx Xxxx Xresident UBS SECURITIES WARBURG LLC By: /s/ Brian E. O'Hara -------------------------- By: ----------------------------------- -------------------------------- Name: Brian E. O'Hara Name: Title: Xxxxxxxx XxTitle: /s/ Jeffrey N. Lavine -------------------------- XXXXXXX XXXXX XXXXXX INC. By: -------------------------------- Name: Jeffrey N. Lavine TitxxTitle: Xxxxxxxx Xxxxctor BANC OF AMERICA SECURITIES LLC By: /s/ Stephen L. Hogue -------------------------- ----------------------------------- Name: Stephen L. Hogue TitlxTitle: Xxxxxxxxx Confirmed and accepted as of the date first above written, solely for purposes of Sections 4(k), 5(g) and 7: UBS WARBURG REAL ESTATE SECURITIES INVESTMENTS INC. By: /s/ Brian E. O'Hara -------------------------- --------------------------------------- Name: Brian E. O'Hara Title: Xxxxxxxx XxBy: /s/ Jeffrey N. Lavine -------------------------- --------------------------------------- Name: Jeffrey N. Lavine TitxxTitle: Xxxxxxxx Xxxxctor Confirmed and accepted as of the date first above written, solely for purposes of Section 4(k) and Sections 5(g): XXXXXX BROTHERS HOLDINGS INC., DOING BUSINESS AS LEHMAN CAPITAL, A DIVISION OF XXXXXX BROTHERS HOLDIXXX XXC. HOLDINGS INC By: /s/ Charlene Thomas -------------------------- --------------------------------------- Name: Charlene Thomas Title: Xxxxxx Xxxx Xresident SCHEDULE I Underwriting Agreement, dated as of August 24May 15, 2007 2001. Title and Description of the Certificates: LB-UBS Commercial Mortgage Trust 20072001-C6C2, Certificates: Commercial Mortgage Pass-Through Certificates, Series 20072001-C6C2, Class A-1, Class A-2, Class X-0, Xxxxx X-XX, Xxxxx X-4, Class A-1A, Class A-M, Class A-J, Class B, Class C, Class D, Class E Class F C and Class X CertificatesD Cut-off Date: May 11, 2001 Expected Closing Date: May 24, 2001 CERTIFICATES

Waivers, Modifications and Amendments. Neither this Agreement nor any term hereof may be changed, waived, discharged or terminated except by a writing signed by the party against whom enforcement of such change, waiver, discharge or termination is sought. If the foregoing is in accordance with your understanding of our agreement, please sign and return to the undersigned a counterpart hereof, whereupon this instrument, along with all counterparts, and your acceptance shall represent a binding agreement between the Company, the Underwriters and the Mortgage Loan Sellers signing this Agreement for purposes of Section 4(k), Section 5(g) and, except in the case of LBHI, Section and 7. Very truly yours, STRUCTURED ASSET SECURITIES CORPORATION II By: /s/ David Nass --------------------------------- Xxxxxxxx X. Xxxxxx ----------------------------------------- Name: David Nass Xxxxxxxx X. Xxxxxx Title: Senior Vice President Confirmed and accepted as of the date first above written: LEHMAN XXXXXX BROTHERS INC. Xx: /s/ Charlene Thomas -------------------------- Name: Charlene Thomas Title: Xxxxxx Xxxx Xresident UBS SECURITIES WARBURG LLC By: /s/ Brian E. O'Hara -------------------------- Name: Brian E. O'Hara Title: Xxxxxxxx Xx: /s/ Jeffrey N. Lavine -------------------------- Name: Jeffrey N. Lavine Titxx: Xxxxxxxx Xxxxctor BANC OF AMERICA SECURITIES LLC Xxxxxxx Xxxxx By: /s/ Stephen L. Hogue -------------------------- Xxxxxx Xxxxxxxxx ------------------------------ -------------------------------- Name: Stephen L. Hogue TitlxXxxxxxx Xxxxx Name: Xxxxxx Xxxxxxxxx Title: Senior Vice President Title: Director By: /s/ Xxxxxx Xxxxx -------------------------------- Name: Xxxxxx Xxxxx Title: Director Confirmed and accepted as of the date first above written, solely for purposes of Sections 4(k), 5(g) and 7: UBS WARBURG REAL ESTATE SECURITIES INVESTMENTS INC. By: /s/ Brian E. O'Hara -------------------------- Xxxxxx Xxxxxxxxx ------------------------------------- Name: Brian E. O'Hara Xxxxxx Xxxxxxxxx Title: Xxxxxxxx XxDirector By: /s/ Jeffrey N. Lavine -------------------------- Xxxxxx Xxxxx ------------------------------------- Name: Jeffrey N. Lavine TitxxXxxxxx Xxxxx Title: Xxxxxxxx Xxxxctor Director Confirmed and accepted as of the date first above written, solely for purposes of Section 4(k) and 5(g): LEHMAN XXXXXX BROTHERS HOLDIXXX XXCHOLDINGS INC., DOING BUSINESS AS XXXXXX CAPITAL, A DIVISION OF XXXXXX BROTHERS HOLDINGS INC. By: /s/ Charlene Thomas -------------------------- Xxxxxxxx Xxxxxx ---------------------------------------- Name: Charlene Thomas Xxxxxxxx Xxxxxx Title: Xxxxxx Xxxx Xresident Authorized Signatory SCHEDULE I Underwriting Agreement, dated as of August 24March 11, 2007 2003. Title and Description of the Certificates: LB-UBS Commercial Mortgage Trust 20072003-C6C1, Certificates: Commercial Mortgage Pass-Through Certificates, Series 20072003-C6C1, Class A-1, Class A-2, Class X-0, Xxxxx X-XX, Xxxxx X-4X-0, Class A-1A, Class A-M, Class A-JA-4, Class B, Class C, Class D, Class E E, Class F and Class X CertificatesG Certificates Cut-off Date: March 11, 2003 Expected Closing Date: March 20, 2003 CERTIFICATES ------------ ----------------------------------------------------------------------------------------------------------------------------- Class A-1 Class A-2 Class A-3 Class A-4 Class B Class C Class D --------- --------- --------- --------- ------- ------- ------- ----------------------------------------------------------------------------------------------------------------------------- Initial Aggregate Principal Amount $110,000,000 $180,000,000 $105,000,000 $537,549,000 $25,714,000 $25,713,000 $20,571,000 ----------------------------------------------------------------------------------------------------------------------------- Initial Pass-Through Rate 2.720% 3.323% 4.095% 4.394% 4.479% 4.499% 4.538% ----------------------------------------------------------------------------------------------------------------------------- Rating(1) AAA/AAA AAA/AAA AAA/AAA AAA/AAA AA+/AA+ AA/AA AA-/AA- ----------------------------------------------------------------------------------------------------------------------------- Purchase Price(2) 100.49689% 100.49752% 100.49827% 100.49826% 100.49476% 100.49696% 100.49340% ----------------------------------------------------------------------------------------------------------------------------- ------------------------------------------------------------------- Class E Class F Class G ------- ------- ------- ------------------------------------------------------------------- Initial Aggregate Principal Amount $18,856,000 $17,143,000 $18,856,000 ------------------------------------------------------------------- Initial Pass-Through Rate 4.568% 4.588% 4.647% -------------------------------------------------------------------

Waivers, Modifications and Amendments. Neither this Agreement nor any term hereof may be changed, waived, discharged or terminated except by a writing signed by the party against whom enforcement of such change, waiver, discharge or termination is sought. If the foregoing is in accordance with your understanding of our agreement, please sign and return to the undersigned a counterpart hereof, whereupon this instrument, along with all counterparts, and your acceptance shall represent a binding agreement between the Company, the Underwriters and the Mortgage Loan Sellers signing this Agreement for purposes of Section 4(k), Section 5(g) and, except in the case of LBHI, Section and 7. Very truly yours, STRUCTURED ASSET SECURITIES CORPORATION II By: /s/ David Nass --------------------------------- ________________________________________ Name: David Nass Title: Senior Vice President Confirmed and accepted as of the date first above written: LEHMAN BROTHERS INC. XxBy: /s/ Charlene Thomas -------------------------- _________________________ Name: Charlene Thomas Titxx: [INSERT NAME OF UNDERWRITER] By: _________________________ Name: Title: Xxxxxx Xxxx Xresident UBS SECURITIES LLC By: /s/ Brian E. O'Hara -------------------------- _________________________ Name: Brian E. O'Hara Title: Xxxxxxxx Xx[INSERT NAME OF UNDERWRITER] By: /s/ Jeffrey N. Lavine -------------------------- _________________________ Name: Jeffrey N. Lavine TitxxTitle: Xxxxxxxx Xxxxctor BANC OF AMERICA SECURITIES LLC By: /s/ Stephen L. Hogue -------------------------- _________________________ Name: Stephen L. Hogue TitlxTitle: Xxxxxxxxx Confirmed and accepted as of the date first above written, solely for purposes of Sections 4(k), 5(g) and 7: UBS REAL ESTATE SECURITIES INC. [INSERT NAME OF SELLER] By: /s/ Brian E. O'Hara -------------------------- _________________________ Name: Brian E. O'Hara Title: Xxxxxxxx XxBy: /s/ Jeffrey N. Lavine -------------------------- _________________________ Name: Jeffrey N. Lavine TitxxTitle: Xxxxxxxx Xxxxctor Confirmed and accepted as of the date first above written, solely for purposes of Section 4(k) and 5(g): LEHMAN BROTHERS HOLDIXXX XXCHOLDINGS INC. By: /s/ Charlene Thomas -------------------------- _________________________ Name: Charlene Thomas Title: Xxxxxx Xxxx Xresident SCHEDULE I Underwriting Agreement, dated as of August 24__________, 2007 200_ Title and Description of the LB-UBS Certificates: LB-[___] Commercial Mortgage Trust 2007-C6200_-C_, Certificates: Commercial Mortgage Pass-Through Certificates, Series 2007-C6200_-C_, [Class A-1, Class A-2, Class X-0A-3, Xxxxx XClass A-XXAB, Xxxxx X-4Class A-4, Class A-1A, Class A-M, Class A-J, Class B, Class C, Class D, Class E Class F and Class X X-CP] Certificates

Waivers, Modifications and Amendments. Neither this Agreement nor any term hereof may be changed, waived, discharged or terminated except by a writing signed by the party against whom enforcement of such change, waiver, discharge or termination is sought. If the foregoing is in accordance with your understanding of our agreement, please sign and return to the undersigned a counterpart hereof, whereupon this instrument, along with all counterparts, and your acceptance shall represent a binding agreement between the Company, the Underwriters and the Mortgage Loan Sellers signing this Agreement for purposes of Section 4(k), Section 5(g) and, except in the case of LBHI, Section and 7. Very truly yours, STRUCTURED ASSET SECURITIES CORPORATION II By: /s/ David Nass --------------------------------- Xxxxx Xxxx --------------------------------------- Name: David Nass Xxxxx Xxxx Title: Senior Vice President Authorized Signatory Confirmed and accepted as of the date first above written: LEHMAN XXXXXX BROTHERS INC. XxBy: /s/ Charlene Thomas -------------------------- Xxxxxxxxx Xxxxxxx --------------------------------- Name: Charlene Thomas Xxxxxxxxx Xxxxxxx Title: Xxxxxx Xxxx Xresident VP UBS SECURITIES LLC By: /s/ Brian E. O'Hara -------------------------- Xxxxxx Xxxxxxxxx --------------------------------- Name: Brian E. O'Hara Xxxxxx Xxxxxxxxx Title: Xxxxxxxx Xx: /s/ Jeffrey N. Lavine -------------------------- Name: Jeffrey N. Lavine Titxx: Xxxxxxxx Xxxxctor BANC OF AMERICA SECURITIES LLC Director By: /s/ Stephen L. Hogue -------------------------- Xxxx Xxxxx --------------------------------- Name: Stephen L. Hogue TitlxXxxx Xxxxx Title: Xxxxxxxxx Director Confirmed and accepted as of the date first above written, solely for purposes of Sections 4(k), 5(g) and 7: UBS REAL ESTATE SECURITIES INVESTMENTS INC. By: /s/ Brian E. O'Hara -------------------------- Xxxxxx Xxxxxxxxx --------------------------------- Name: Brian E. O'Hara Xxxxxx Xxxxxxxxx Title: Xxxxxxxx XxDirector By: /s/ Jeffrey N. Lavine -------------------------- Xxxx Xxxxx --------------------------------- Name: Jeffrey N. Lavine TitxxXxxx Xxxxx Title: Xxxxxxxx Xxxxctor Director Confirmed and accepted as of the date first above written, solely for purposes of Section 4(k) and 5(g): LEHMAN XXXXXX BROTHERS HOLDIXXX XXCHOLDINGS INC. By: /s/ Charlene Thomas -------------------------- Xxxxxxxx Xxxxxx --------------------------------- Name: Charlene Thomas Xxxxxxxx Xxxxxx Title: Xxxxxx Xxxx Xresident Authorized Signatory SCHEDULE I Underwriting Agreement, dated as of August 2410, 2007 2004 Title and Description of the Certificates: LB-UBS Commercial Mortgage Trust 20072004-C6, Certificates: Commercial Mortgage Pass-Through Certificates, Series 20072004-C6, Class A-1, Class A-2, Class X-0, Xxxxx X-XXX-0, Xxxxx X-4Class A-4, Class A-5, Class A-6, Class A-1A, Class A-M, Class A-J, Class B, Class C, Class D, Class E and Class F and Class X CertificatesCertificates Cut-off Date: August 11, 2004 Expected Closing Date: August 24, 2004 CERTIFICATES ------------------------------------------------------------------------------------------------------------------------------------ CLASS A-1 CLASS A-2 CLASS A-3 CLASS A-4 CLASS A-5 CLASS A-6 --------- --------- --------- --------- --------- --------- ------------------------------------------------------------------------------------------------------------------------------------ Initial Aggregate Principal $78,000,000 $222,000,000 $109,000,000 $60,000,000 $54,000,000 $470,130,000 Amount ------------------------------------------------------------------------------------------------------------------------------------ Initial Pass-Through Rate 3.881% 4.187% 4.547% 4.583% 4.826%(3) 5.020%(3) ------------------------------------------------------------------------------------------------------------------------------------ Rating(1) AAA/AAA AAA/AAA AAA/AAA AAA/AAA AAA/AAA AAA/AAA ------------------------------------------------------------------------------------------------------------------------------------ Purchase Price(2) 100.49730% 100.49776% 100.49541% 100.49766% 100.49715% 100.49335% ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ CLASS A-1A CLASS B CLASS C CLASS D CLASS E CLASS F ---------- ------- ------- ------- ------- ------- ------------------------------------------------------------------------------------------------------------------------------------ Initial Aggregate Principal $188,441,000 $13,465,000 $23,564,000 $15,148,000 $13,466,000 $15,148,000 Amount ------------------------------------------------------------------------------------------------------------------------------------ Initial Pass-Through Rate 4.627%(3) 5.088%(3) 5.108%(3) 5.147%(3) 5.177%(3) 5.206%(3) ------------------------------------------------------------------------------------------------------------------------------------ Rating(1) AAA/AAA AA+/AA+ AA/AA AA-/AA- A+/A+ A/A ------------------------------------------------------------------------------------------------------------------------------------ Purchase Price(2) 100.49448% 100.49615% 100.49867% 100.49592% 100.49974% 100.49580% ------------------------------------------------------------------------------------------------------------------------------------ ---------------

Waivers, Modifications and Amendments. Neither this Agreement nor any term hereof may be changed, waived, discharged or terminated except by a writing signed by the party against whom enforcement of such change, waiver, discharge or termination is sought. If the foregoing is in accordance with your understanding of our agreement, please sign and return to the undersigned a counterpart hereof, whereupon this instrument, along with all counterparts, and your acceptance shall represent a binding agreement between the Company, the Underwriters and the Mortgage Loan Sellers signing this Agreement for purposes of Section 4(k), Section 5(g) and, except in the case of LBHI, Section and 7. Very truly yours, STRUCTURED ASSET SECURITIES CORPORATION II By: /s/ David Nass --------------------------------- ------------------------------------ Name: David Nass Title: Senior Vice President Vixx Xxxxxxxnt Confirmed and accepted as of the date first above written: LEHMAN BROTHERS INC. By: /s/ Justin E. Driscoll --------------------------------- Name: Justxx X. Xxxxxxxx Xxxle: Vice President UBS GLOBAL ASSET MANAGEMXXX (XX) XXX. Xx: /s/ Charlene Thomas -------------------------- Robert W. Pettinato --------------------------------- Name: Charlene Thomas TitleRobxxx X. Xxxxxxxxx Xxtle: Xxxxxx Xxxx Xresident UBS SECURITIES LLC Executive Director By: /s/ Brian E. O'Hara -------------------------- Brad A. Cohxx --------------------------------- Name: Brian E. O'Hara TitleBrad A. Cxxxx Xxxxx: Xxxxxxxx Xxecutive Director CITIGROUP GLOBAL MARKETS XXX. Xx: /s/ Jeffrey N. Lavine -------------------------- Angela J. Vleck -------------------------------- Name: Jeffrey N. Lavine TitxxAngela X. Xxxxx Xxxxx: Xxxxxxxx Xxxxctor BANC OF AMERICA SECURITIES LLC ByManaging Director MCDONALD INVESTMENTS INC. Xx: /s/ Stephen L. Hogue -------------------------- /x/ Xxseph A. Chinnici -------------------------------- Name: Stephen L. Hogue TitlxJosexx X. Xxxxxxxx Xxxle: Xxxxxxxxx Managing Director Confirmed and accepted as of the date acceptxx xx xx xxx xxxx first above written, solely for purposes of Sections 4(k), 5(g) and 7: UBS REAL ESTATE SECURITIES INVESTMENTS INC. By: /s/ Brian E. O'Hara -------------------------- Tessa L. Peters --------------------------------- Name: Brian E. O'Hara TitleTessa L. Xxxxxx Xxxxx: Xxxxxxxx XxDirector By: /s/ Jeffrey N. Lavine -------------------------- Pamela McCormack --------------------------------- Name: Jeffrey N. Lavine TitxxPamela XxXxxxxxx Xxxxx: Xxxxxxxx Xxxxctor Executive Director Confirmed and accepted as of the date first xx xx xxx xxxx xirst above written, solely for purposes of Section 4(k) and 5(g): LEHMAN BROTHERS HOLDIXXX XXCHOLDINGS INC. By: /s/ Charlene Thomas -------------------------- Catherine Harnett --------------------------------- Name: Charlene Thomas TitleCathexxxx Xxxxxxx Xxxxe: Xxxxxx Xxxx Xresident SCHEDULE Authorized Signatory Confirmed and acceptxx xx xx xxx xxxx first above written, solely for purposes of Section 4(k) and 5(g) and 7: KEYBANK NATIONAL ASSOCIATION By: /s/ Clay M. Sublett --------------------------------- Name: Clay M. Xxxxxxx Xxxxx: Authorized Official XCHEDULE I Underwriting Agreement, dated as of August 24November 21, 2007 2006 Title and Description of the Certificates: LB-UBS Commercial Mortgage Trust 20072006-C6C7, Certificates: Commercial Mortgage Pass-Through Certificates, Series 20072006-C6C7, Class A-1, Class A-2, Class X-0A-AB, Xxxxx X-XX, Xxxxx X-4Class A-3, Class A-1A, Class A-M, Class A-J, Class B, Class C, Class D, Class E Class F and Class X X-CP Certificates

Waivers, Modifications and Amendments. Neither this Agreement nor any term hereof may be changed, waived, discharged or terminated except by a writing signed by the party against whom enforcement of such change, waiver, discharge or termination is sought. If the foregoing is in accordance with your understanding of our agreement, please sign and return to the undersigned a counterpart hereof, whereupon this instrument, along with all counterparts, and your acceptance shall represent a binding agreement between the Company, the Underwriters Company and the Mortgage Loan Sellers signing this Agreement for purposes of Section 4(k), Section 5(g) and, except in the case of LBHI, Section 7Underwriters. Very truly yours, STRUCTURED ASSET SECURITIES CORPORATION II By: /s/ David Nass --------------------------------- -------------------------------- Name: David Nass Title: Senior Vice President Confirmed and accepted as of the date first above written: LEHMAN XXXXXX BROTHERS INC. Xx: /s/ Charlene Thomas -------------------------- Name: Charlene Thomas Title: Xxxxxx Xxxx Xresident UBS SECURITIES WARBURG LLC By: /s/ Brian E. O'Hara -------------------------- By: ----------------------------- ------------------------------ Name: Brian E. O'Hara Name: Title: Xxxxxxxx XxTitle By: /s/ Jeffrey N. Lavine -------------------------- ------------------------------ Name: Jeffrey N. Lavine TitxxTitle: Xxxxxxxx Xxxxctor BANC OF AMERICA SECURITIES LLC BEAR, XXXXXXX & CO. INC. By: /s/ Stephen L. Hogue -------------------------- ----------------------------- Name: Stephen L. Hogue TitlxTitle: Xxxxxxxxx Confirmed and accepted as of the date first above written, solely for purposes of Sections 4(k), 5(g) and 7: UBS WARBURG REAL ESTATE SECURITIES INVESTMENTS INC. By: /s/ Brian E. O'Hara -------------------------- ---------------------------- Name: Brian E. O'Hara Title: Xxxxxxxx XxBy: /s/ Jeffrey N. Lavine -------------------------- ---------------------------- Name: Jeffrey N. Lavine TitxxTitle: Xxxxxxxx Xxxxctor Confirmed and accepted as of the date first above written, solely for purposes of Section 4(k) and 5(g): LEHMAN XXXXXX BROTHERS HOLDIXXX XXCHOLDINGS INC., DOING BUSINESS AS XXXXXX CAPITAL, A DIVISION OF XXXXXX BROTHERS HOLDINGS INC. By: /s/ Charlene Thomas -------------------------- ------------------------------ Name: Charlene Thomas Title: Xxxxxx Xxxx Xresident SCHEDULE I Underwriting Agreement, dated as of August 24July 20, 2007 2001. Title and Description of the Certificates: LB-UBS Commercial Mortgage Trust 20072001-C6C3, Certificates: Commercial Mortgage Pass-Through Certificates, Series 20072001-C6C3, Class A-1, Class A-2, Class X-0, Xxxxx X-XX, Xxxxx X-4, Class A-1A, Class A-M, Class A-J, Class B, Class C, Class D, Class E Class F C and Class X CertificatesD Cut-off Date: July 11, 2001 Expected Closing Date: July 30, 2001 CERTIFICATES ----------------------------------------------------------------------------------------------------------------------------------- CLASS A-1 CLASS A-2 CLASS A-2 CLASS B CLASS C CLASS D ----------------------------------------------------------------------------------------------------------------------------------- Initial Aggregate Principal Amount $351,200,000 $756,013,000 $25,000,000 $55,230,000 $44,653,000 $16,000,000 ----------------------------------------------------------------------------------------------------------------------------------- Initial Pass-Through Rate 6.05800% 6.36500% 6.36500% 6.51200% 6.65300% 6.73100% ----------------------------------------------------------------------------------------------------------------------------------- Rating(1) AAA/AAA AAA/AAA AAA/AAA AA/AA A/A A-/A- ----------------------------------------------------------------------------------------------------------------------------------- Purchase Price(2) 100.49592% 100.49574% 100.37115% 100.49654% 100.49958% 100.49794% ----------------------------------------------------------------------------------------------------------------------------------- ---------------

Waivers, Modifications and Amendments. Neither this Agreement nor any term hereof may be changed, waived, discharged or terminated except by a writing signed by the party against whom enforcement of such change, waiver, discharge or termination is sought. If the foregoing is in accordance with your understanding of our agreement, please sign and return to the undersigned a counterpart hereof, whereupon this instrument, along with all counterparts, and your acceptance shall represent a binding agreement between the Company, the Underwriters and the Mortgage Loan Sellers signing this Agreement for purposes of Section 4(k), and Section 5(g) and, except in the case of LBHI, Section 7. Very truly yours, STRUCTURED ASSET SECURITIES CORPORATION II By: /s/ David Nass --------------------------------- Tracy Dembicer -------------------------------------- Name: David Nass Tracy Dembicer Title: Senior Vice President Confirmed and accepted as of the date first above written: LEHMAN BROTHERS INC. Xx: /s/ Charlene Thomas -------------------------- /x/ Douglas D. Fitton ---------------------------------- Name: Charlene Thomas Douglas D. Fitton Title: Xxxxxx Xxxx Xresident UBS SECURITIES LLC By: /s/ Brian E. O'Hara -------------------------- Name: Brian E. O'Hara Title: Xxxxxxxx Xx: /s/ Jeffrey N. Lavine -------------------------- Name: Jeffrey N. Lavine Titxx: Xxxxxxxx Xxxxctor BANC OF AMERICA SECURITIES LLC By: /s/ Stephen L. Hogue -------------------------- Name: Stephen L. Hogue Titlx: Xxxxxxxxx Confirmed and accepted as of the date first above written, solely for purposes of Sections 4(k), 5(g) and 7: UBS REAL ESTATE SECURITIES CITIGROUP GLOBAL MARKETS INC. By: /s/ Brian E. O'Hara -------------------------- Angela J. Vleck ---------------------------------- Name: Brian E. O'Hara Angela J. Vleck Title: Xxxxxxxx Xx: /s/ Jeffrey N. Lavine -------------------------- Name: Jeffrey N. Lavine Titxx: Xxxxxxxx Xxxxctor Xxxxxxor Confirmed and accepted as of the date first above written, solely for purposes of Section 4(k) and 5(g): LEHMAN BROTHERS HOLDIXXX XXCHOLDINGX XXX. By: /s/ Charlene Thomas -------------------------- Douglas D. Fitton ---------------------------------- Name: Charlene Thomas Douglas D. Fitton Title: Xxxxxx Xxxx Xresident Xxxxxxxxx SCHEDULE I Underwriting Agreement, dated as of August 24July 19, 2007 Title and Description of the LB-UBS Certificates: LB Commercial Mortgage Trust 2007-C6C3, Certificates: Commercial Mortgage Pass-Through Certificates, Series 2007-C6C3, Class A-1, Class A-2, Class X-0A-3, Xxxxx XClass A-XXAB, Xxxxx X-4Class-A4, Class A-4B, Class A-1A, Class A-M, Class A-MB Class A-J, Class B, Class C, Class D, Class E Class F F, Class X-CP and Class X X-W Certificates

Waivers, Modifications and Amendments. Neither this Agreement nor any term hereof may be changed, waived, discharged or terminated except by a writing signed by the party against whom enforcement of such change, waiver, discharge or termination is sought. If the foregoing is in accordance with your understanding of our agreement, please sign and return to the undersigned a counterpart hereof, whereupon this instrument, along with all counterparts, and your acceptance shall represent a binding agreement between the Company, the Underwriters and the Mortgage Loan Sellers signing this Agreement for purposes of Section 4(k), Section 5(g) and, except in the case of LBHI, Section and 7. Very truly yours, STRUCTURED ASSET SECURITIES CORPORATION II By: /s/ David Nass --------------------------------- Xxxxx Xxxx ------------------------------------ Name: David Nass Xxxxx Xxxx Title: Senior Vice President Confirmed and accepted as of the date first above written: LEHMAN XXXXXX BROTHERS INC. XxBy: /s/ Charlene Thomas -------------------------- Xxxxxx X. Xxxxxxxx ------------------------------------ Name: Charlene Thomas Xxxxxx X. Xxxxxxxx Title: Xxxxxx Xxxx Xresident Vice President UBS SECURITIES LLC By: /s/ Brian E. O'Hara -------------------------- Xxxxxx X. Xxxxxxxxx ------------------------------------ Name: Brian E. O'Hara Xxxxxx X. Xxxxxxxxx Title: Xxxxxxxx Xx: /s/ Jeffrey N. Lavine -------------------------- Name: Jeffrey N. Lavine Titxx: Xxxxxxxx Xxxxctor BANC OF AMERICA SECURITIES LLC Executive Director By: /s/ Stephen L. Hogue -------------------------- Xxxx X. Xxxxx ------------------------------------ Name: Stephen L. Hogue TitlxXxxx X. Xxxxx Title: Xxxxxxxxx Executive Director Confirmed and accepted as of the date first above written, solely for purposes of Sections 4(k), 5(g) and 7: UBS REAL ESTATE SECURITIES INVESTMENTS INC. By: /s/ Brian E. O'Hara -------------------------- Xxxxxx X. Xxxxxxxxx ------------------------------------ Name: Brian E. O'Hara Xxxxxx X. Xxxxxxxxx Title: Xxxxxxxx XxExecutive Director By: /s/ Jeffrey N. Lavine -------------------------- Xxxx X. Xxxxx ------------------------------------ Name: Jeffrey N. Lavine TitxxXxxx X. Xxxxx Title: Xxxxxxxx Xxxxctor Executive Director Confirmed and accepted as of the date first above written, solely for purposes of Section 4(k) and 5(g): LEHMAN XXXXXX BROTHERS HOLDIXXX XXCHOLDINGS INC. By: /s/ Charlene Thomas -------------------------- Xxxxxxxxx Xxxxxxx ------------------------------------ Name: Charlene Thomas Xxxxxxxxx Xxxxxxx Title: Xxxxxx Xxxx Xresident Authorized Signatory SCHEDULE I Underwriting Agreement, dated as of August 24January 20, 2007 2006 Title and Description of the LB-UBS Commercial Mortgage Trust 20072006-C6C1, Certificates: Commercial Mortgage Pass-Through Certificates, Series 20072006-C6C1, Class A-1, Class A-2, Class X-0, Xxxxx X-XX, Xxxxx X-4X-0, Class A-1AA-AB, Class A-4, Class A-M, Class A-J, Class B, Class C, Class D, Class E E, Class F and Class X X-CP Certificates

Waivers, Modifications and Amendments. Neither this Agreement nor any term hereof may be changed, waived, discharged or terminated except by a writing signed by the party against whom enforcement of such change, waiver, discharge or termination is sought. If the foregoing is in accordance with your understanding of our agreement, please sign and return to the undersigned a counterpart hereof, whereupon this instrument, along with all counterparts, and your acceptance shall represent a binding agreement between the Company, the Underwriters and the Mortgage Loan Sellers signing this Agreement for purposes of Section 4(k), Section 5(g) and, except in the case of LBHI, Section and 7. Very truly yours, STRUCTURED ASSET SECURITIES CORPORATION II By: /s/ David Nass --------------------------------- Xxxxx Xxxx --------------------------- Name: David Nass Xxxxx Xxxx Title: Senior Vice President Authorized Signatory Confirmed and accepted as of the date first above written: LEHMAN XXXXXX BROTHERS INC. XxBy: /s/ Charlene Thomas -------------------------- Xxxxxxxxx Xxxxxxx -------------------------------- Name: Charlene Thomas Xxxxxxxxx Xxxxxxx Title: Xxxxxx Xxxx Xresident Vice President UBS SECURITIES LLC By: /s/ Brian E. O'Hara -------------------------- Xxxxxx Xxxxxxxxx -------------------------------- Name: Brian E. O'Hara Xxxxxx Xxxxxxxxx Title: Xxxxxxxx Xx: /s/ Jeffrey N. Lavine -------------------------- Name: Jeffrey N. Lavine Titxx: Xxxxxxxx Xxxxctor BANC OF AMERICA SECURITIES LLC Director By: /s/ Stephen L. Hogue -------------------------- Xxxx Xxxxx -------------------------------- Name: Stephen L. Hogue TitlxXxxx Xxxxx Title: Xxxxxxxxx Director Confirmed and accepted as of the date first above written, solely for purposes of Sections 4(k), 5(g) and 7: UBS REAL ESTATE SECURITIES INVESTMENTS INC. By: /s/ Brian E. O'Hara -------------------------- Xxxxxx Xxxxxxxxx -------------------------------- Name: Brian E. O'Hara Xxxxxx Xxxxxxxxx Title: Xxxxxxxx XxDirector By: /s/ Jeffrey N. Lavine -------------------------- Xxxx Xxxxx -------------------------------- Name: Jeffrey N. Lavine TitxxXxxx Xxxxx Title: Xxxxxxxx Xxxxctor Director Confirmed and accepted as of the date first above written, solely for purposes of Section 4(k) and 5(g): LEHMAN XXXXXX BROTHERS HOLDIXXX XXCHOLDINGS INC. By: /s/ Charlene Thomas -------------------------- Xxxxxxxx Xxxxxx -------------------------------- Name: Charlene Thomas Xxxxxxxx Xxxxxx Title: Xxxxxx Xxxx Xresident Authorized Signatory SCHEDULE I Underwriting Agreement, dated as of August 24November 23, 2007 2004 Title and Description of the Certificates: LB-UBS Commercial Mortgage Trust 20072004-C6C8, Certificates: Commercial Mortgage Pass-Through Certificates, Series 20072004-C6C8, Class A-1, Class A-2, Class X-0, Xxxxx X-XX, Xxxxx X-4X-0, Class A-1AA-4, Class A-MA-5, Class A-6, Class A-J, Class B, Class C, Class D, Class E and Class F and Class X CertificatesCertificates Cut-off Date: November 12, 2004 Expected Closing Date: December 2, 2004 CERTIFICATES ------------ --------------------------------------------------------------------------------------------------------------------------------- CLASS A-1 CLASS A-2 CLASS A-3 CLASS A-4 CLASS A-5 CLASS A-6 --------- --------- --------- --------- --------- --------- --------------------------------------------------------------------------------------------------------------------------------- Initial Aggregate Principal Amount $53,000,000 $383,000,000 $44,000,000 $150,000,000 $36,000,000 $383,027,000 --------------------------------------------------------------------------------------------------------------------------------- Initial Pass-Through Rate 3.936% 4.201% 4.435% 4.510% 4.720% 4.799% --------------------------------------------------------------------------------------------------------------------------------- Rating(1) AAA/Aaa AAA/Aaa AAA/Aaa AAA/Aaa AAA/Aaa AAA/Aaa --------------------------------------------------------------------------------------------------------------------------------- Purchase Price(2) 100.49730% 100.49849% 100.49733% 100.49661% 100.49388% 100.49351% --------------------------------------------------------------------------------------------------------------------------------- --------------------------------------------------------------------------------------------------------------------------------- CLASS A-J CLASS B CLASS C CLASS D CLASS E CLASS F --------- ------- ------- ------- ------- ------- ---------------------------------------------------------------------------------------------------------------------------------

Waivers, Modifications and Amendments. Neither this Agreement nor any term hereof may be changed, waived, discharged or terminated except by a writing signed by the party against whom enforcement of such change, waiver, discharge or termination is sought. If the foregoing is in accordance with your understanding of our agreement, please sign and return to the undersigned a counterpart hereof, whereupon this instrument, along with all counterparts, and your acceptance shall represent a binding agreement between the Company, the Underwriters and the Mortgage Loan Sellers signing this Agreement for purposes of Section 4(k), Section 5(g) and, except in the case of LBHI, Section and 7. Very truly yours, STRUCTURED ASSET SECURITIES CORPORATION II By: /s/ David Nass --------------------------------- Xxxxxxxx X. Xxxxxx ------------------------------- Name: David Nass Xxxxxxxx X. Xxxxxx Title: Senior Vice President Confirmed and accepted as of the date first above written: LEHMAN XXXXXX BROTHERS INC. Xx: /s/ Charlene Thomas -------------------------- Name: Charlene Thomas Title: Xxxxxx Xxxx Xresident UBS SECURITIES LLC By: /s/ Brian E. O'Hara -------------------------- Name: Brian E. O'Hara Title: Xxxxxxxx Xx: /s/ Jeffrey N. Lavine -------------------------- Name: Jeffrey N. Lavine Titxx: Xxxxxxxx Xxxxctor BANC OF AMERICA SECURITIES LLC Xxxx Xxxxxxx By: /s/ Stephen L. Hogue -------------------------- Xxxxxx Xxxxxxxxx ---------------------------------- ------------------------------- Name: Stephen L. Hogue TitlxXxxx Xxxxxxx Name: Xxxxxx Xxxxxxxxx Title: Managing Director Title: Director By: /s/ Xxxx Xxxxx ------------------------------ Name: Xxxx Xxxxx Title: Director XXXXXX XXXXXXX & CO. INCORPORATED By: /s/ Xxxxxx X. Friend ---------------------------------- Name: Xxxxxx X. Friend Title: Managing Director Confirmed and accepted as of the date first above written, solely for purposes of Sections 4(k), 5(g) and 7: UBS REAL ESTATE SECURITIES INVESTMENT INC. By: /s/ Brian E. O'Hara -------------------------- Xxxxxx Xxxxxxxxx -------------------------------------- Name: Brian E. O'Hara Xxxxxx Xxxxxxxxx Title: Xxxxxxxx XxDirector By: /s/ Jeffrey N. Lavine -------------------------- Xxxx Xxxxx -------------------------------------- Name: Jeffrey N. Lavine TitxxXxxx Xxxxx Title: Xxxxxxxx Xxxxctor Director Confirmed and accepted as of the date first above written, solely for purposes of Section 4(k) and 5(g): XXXXXX BROTHERS HOLDINGS INC., DOING BUSINESS AS LEHMAN CAPITAL, A DIVISION OF XXXXXX BROTHERS HOLDIXXX XXCHOLDINGS INC. By: /s/ Charlene Thomas -------------------------- Xxxxxxxx Xxxxxx --------------------------------------- Name: Charlene Thomas Xxxxxxxx Xxxxxx Title: Xxxxxx Xxxx Xresident Authorized Signatory SCHEDULE I Underwriting Agreement, dated as of August 24July 16, 2007 2003. Title and Description of the Certificates: LB-UBS Commercial Mortgage Trust 20072003-C6C5, Certificates: Commercial Mortgage Pass-Through Certificates, Series 20072003-C6C5, Class A-1, Class A-2, Class X-0, Xxxxx X-XX, Xxxxx X-4A-3, Class A-1A, Class A-M, Class A-JA-4, Class B, Class C, Class D, Class E E, Class F and Class X CertificatesG Certificates Cut-off Date: July 11, 2003 Expected Closing Date: July 30, 200 CERTIFICATES -------------------------------------------------------------------------------------------------------------------------- CLASS A-1 CLASS A-2 CLASS A-3 CLASS A-4 CLASS B CLASS C CLASS D --------- --------- --------- --------- ------- ------- ------- -------------------------------------------------------------------------------------------------------------------------- Initial Aggregate Principal Amount $145,000,000 $503,000,000 $220,000,000 $328,064,000 $22,833,000 $24,588,000 $15,807,000 -------------------------------------------------------------------------------------------------------------------------- Initial Pass-Through Rate 2.786% 3.478% 4.254% 4.685% 4.742% 4.762% 4.792% -------------------------------------------------------------------------------------------------------------------------- Rating(1) AAA/AAA AAA/AAA AAA/AAA AAA/AAA AA+/AA+ AA/AA AA-/AA- -------------------------------------------------------------------------------------------------------------------------- Purchase Price(2) 100.49703% 100.49981% 100.49543% 100.49358% 100.49319% 100.49552% 100.49903% -------------------------------------------------------------------------------------------------------------------------- CERTIFICATES ---------------------------------------------------------------- CLASS E CLASS F CLASS G ------- ------- ------- ---------------------------------------------------------------- Initial Aggregate Principal Amount $15,807,000 $22,833,000 $17,563,000 ---------------------------------------------------------------- Initial Pass-Through Rate 4.811% 4.843% 4.893% ----------------------------------------------------------------

Waivers, Modifications and Amendments. Neither this Agreement nor any term hereof may be changed, waived, discharged or terminated except by a writing signed by the party against whom enforcement of such change, waiver, discharge or termination is sought. If the foregoing is in accordance with your understanding of our agreement, please sign and return to the undersigned a counterpart hereof, whereupon this instrument, along with all counterparts, and your acceptance shall represent a binding agreement between the Company, the Underwriters and the Mortgage Loan Sellers signing this Agreement for purposes of Section 4(k), Section 5(g) and, except in the case of LBHI, Section and 7. Very truly yours, STRUCTURED ASSET SECURITIES CORPORATION II By: /s/ David Nass --------------------------------- Xxxxxxxx Xxxxxx --------------------------------------- Name: David Nass Xxxxxxxx Xxxxxx Title: Senior Vice President Confirmed and accepted as of the date first above written: LEHMAN XXXXXX BROTHERS INC. XxBy: /s/ Charlene Thomas -------------------------- Xxxxx X. Xxxxxxx ------------------------------------ Name: Charlene Thomas Xxxxx X. Xxxxxxx Title: Xxxxxx Xxxx Xresident Authorized Signatory UBS SECURITIES WARBURG LLC By: /s/ Brian E. O'Hara -------------------------- Xxxxxx Xxxxxxxxx ------------------------------------ Name: Brian E. O'Hara Xxxxxx Xxxxxxxxx Title: Xxxxxxxx Xx: /s/ Jeffrey N. Lavine -------------------------- Name: Jeffrey N. Lavine Titxx: Xxxxxxxx Xxxxctor BANC OF AMERICA SECURITIES LLC Director By: /s/ Stephen L. Hogue -------------------------- Xxxx Xxxxx ------------------------------------ Name: Stephen L. Hogue TitlxXxxx Xxxxx Title: Xxxxxxxxx Director Confirmed and accepted as of the date first above written, solely for purposes of Sections 4(k), 5(g) and 7: UBS WARBURG REAL ESTATE SECURITIES INVESTMENTS INC. By: /s/ Brian E. O'Hara -------------------------- Xxxxxx Xxxxxxxxx ------------------------------------ Name: Brian E. O'Hara Xxxxxx Xxxxxxxxx Title: Xxxxxxxx XxDirector By: /s/ Jeffrey N. Lavine -------------------------- Xxxx Xxxxx ------------------------------------ Name: Jeffrey N. Lavine TitxxXxxx Xxxxx Title: Xxxxxxxx Xxxxctor Director Confirmed and accepted as of the date first above written, solely for purposes of Section 4(k) and 5(g): XXXXXX BROTHERS HOLDINGS INC., DOING BUSINESS AS LEHMAN CAPITAL, A DIVISION OF XXXXXX BROTHERS HOLDIXXX XXCHOLDINGS INC. By: /s/ Charlene Thomas -------------------------- Xxxxxxxx Xxxxxx ------------------------------------ Name: Charlene Thomas Xxxxxxxx Xxxxxx Title: Xxxxxx Xxxx Xresident Authorized Signatory SCHEDULE I Underwriting Agreement, dated as of August 24May 20, 2007 2003. Title and Description of the Certificates: LB-UBS Commercial Mortgage Trust 20072003-C6C3, Certificates: Commercial Mortgage Pass-Pass- Through Certificates, Series 20072003-C6C3, Class A-1, Class A-2, Class X-0, Xxxxx X-XX, Xxxxx X-4A-3, Class A-1A, Class A-M, Class A-JA-4, Class B, Class C, Class D, Class E E, Class F and Class X CertificatesG Certificates Cut-off Date: May 12, 2003 Expected Closing Date: June 5, 2003 CERTIFICATES ----------------------------------------------------------------------------------------------------------------------------- CLASS A-1 CLASS A-2 CLASS A-3 CLASS A-4 CLASS B CLASS C CLASS D --------- --------- --------- --------- ------- ------- ------- ----------------------------------------------------------------------------------------------------------------------------- Initial Aggregate Principal Amount $160,000,000 $275,000,000 $150,000,000 $550,837,000 $20,044,000 $20,044,000 $13,363,000 ----------------------------------------------------------------------------------------------------------------------------- Initial Pass-Through Rate 2.599% 3.086% 3.850% 4.166% 4.225% 4.244% 4.274% ----------------------------------------------------------------------------------------------------------------------------- Rating(1) AAA/Aaa AAA/Aaa AAA/Aaa AAA/Aaa AA+/Aa1 AA/Aa2 AA-/Aa3 ----------------------------------------------------------------------------------------------------------------------------- Purchase Price(2) 100.49681% 100.49821% 100.49476% 100.49616% 100.49996% 100.49395% 100.49706% ----------------------------------------------------------------------------------------------------------------------------- -------------------------------------------------------------------- CLASS E CLASS F CLASS G ------- ------- ------- -------------------------------------------------------------------- Initial Aggregate Principal Amount $13,363,000 $23,384,000 $10,023,000 -------------------------------------------------------------------- Initial Pass-Through Rate 4.303% 4.333% 4.392% --------------------------------------------------------------------

Waivers, Modifications and Amendments. Neither this Agreement nor any term hereof may be changed, waived, discharged or terminated except by a writing signed by the party against whom enforcement of such change, waiver, discharge or termination is sought. If the foregoing is in accordance with your understanding of our agreement, please sign and return to the undersigned a counterpart hereof, whereupon this instrument, along with all counterparts, and your acceptance shall represent a binding agreement between the Company, the Underwriters Company and the Mortgage Loan Sellers signing this Agreement for purposes of Section 4(k), Section 5(g) and, except in the case of LBHI, Section 7Underwriters. Very truly yours, STRUCTURED ASSET SECURITIES CORPORATION II By: /s/ David Nass --------------------------------- --------------------------------------- Name: David Nass Title: Senior Vice President Confirmed and accepted as of the date first above written: LEHMAN XXXXXX BROTHERS INC. XxUBS WARBURG LLC By: /s/ Charlene Thomas By: ------------------------- ----------------------------- Name: Name: Title: Title By: ----------------------------- Name: Title: CREDIT SUISSE FIRST BOSTON CORPORATION By: -------------------------- Name: Charlene Thomas Title: Xxxxxx Xxxx Xresident UBS SECURITIES LLC By: /s/ Brian E. O'Hara -------------------------- Name: Brian E. O'Hara Title: Xxxxxxxx Xx: /s/ Jeffrey N. Lavine -------------------------- Name: Jeffrey N. Lavine Titxx: Xxxxxxxx Xxxxctor BANC OF AMERICA SECURITIES LLC By: /s/ Stephen L. Hogue -------------------------- Name: Stephen L. Hogue Titlx: Xxxxxxxxx Confirmed and accepted as of the date first above written, solely for purposes of Sections 4(k), 5(g) and 7: UBS WARBURG REAL ESTATE SECURITIES INVESTMENTS INC. By: /s/ Brian E. O'Hara -------------------------- Name: Brian E. O'Hara Title: Xxxxxxxx XxBy: /s/ Jeffrey N. Lavine -------------------------- Name: Jeffrey N. Lavine TitxxTitle: Xxxxxxxx Xxxxctor Confirmed and accepted as of the date first above written, solely for purposes of Section 4(k) and 5(g): LEHMAN XXXXXX BROTHERS HOLDIXXX XXCHOLDINGS INC., DOING BUSINESS AS XXXXXX CAPITAL, A DIVISION OF XXXXXX BROTHERS HOLDINGS INC. By: /s/ Charlene Thomas -------------------------- Name: Charlene Thomas Title: Xxxxxx Xxxx Xresident SCHEDULE I Underwriting Agreement, dated as of August 24December 5, 2007 2001. Title and Description of the Certificates: LB-UBS Commercial Mortgage Trust 20072001-C6C7, Certificates: Commercial Mortgage Pass-Through Certificates, Series 20072001-C6C7, Class A-1, Class A-2, Class X-0, Xxxxx X-XX, Xxxxx X-4X-0, Class A-1AA-4, Class A-M, Class A-JA-5, Class B, Class C, Class D, D and Class E Class F and Class X CertificatesCertificates Cut-off Date: December 11, 2001 Expected Closing Date: December 18, 2001 CERTIFICATES -------------------- ----------- ----------- ------------ ----------- ------------ ----------- ----------- ----------- ------------ CLASS A-1 CLASS A-2 CLASS A-3 CLASS A-4 CLASS A-5 CLASS B CLASS C CLASS D CLASS E --------- --------- --------- --------- --------- ------- ------- ------- ------- Initial Aggregate $33,020,000 $60,674,000 $300,000,000 $57,722,000 $540,708,000 $49,909,000 $16,636,000 $39,300,000 $12,100,000 Principal Amount -------------------- ----------- ----------- ------------ ----------- ------------ ----------- ----------- ----------- ------------ Initial Pass-Through 4.87200% 5.53300% 5.64200% 5.93400% 6.13300% 6.29900% 6.37700% 6.51400% 6.63200% Rate -------------------- ----------- ----------- ------------ ----------- ------------ ----------- ----------- ----------- ------------ Rating(1) AAA/Aaa AAA/Aaa AAA/Aaa AAA/Aaa AAA/Aaa AA/Aa2 AA-/Aa3 A/A2 A-/A3 -------------------- ----------- ----------- ------------ ----------- ------------ ----------- ----------- ----------- ------------ % % % % % % % % % -------------------- ----------- ----------- ------------ ----------- ------------ ----------- ----------- ----------- ------------

Waivers, Modifications and Amendments. Neither this Agreement nor any term hereof may be changed, waived, discharged or terminated except by a writing signed by the party against whom enforcement of such change, waiver, discharge or termination is sought. If the foregoing is in accordance with your understanding of our agreement, please sign and return to the undersigned a counterpart hereof, whereupon this instrument, along with all counterparts, and your acceptance shall represent a binding agreement between the Company, the Underwriters and the Mortgage Loan Sellers signing this Agreement for purposes of Section 4(k), Section 5(g) and, except in the case of LBHI, Section and 7. Very truly yours, STRUCTURED ASSET SECURITIES CORPORATION II By: /s/ David Nass --------------------------------- Xxxxxxxx X. Xxxxxx ----------------------------------- Name: David Nass Xxxxxxxx X. Xxxxxx Title: Senior Vice President Confirmed and accepted as of the date first above written: LEHMAN XXXXXX BROTHERS INC. Xx: /s/ Charlene Thomas -------------------------- Name: Charlene Thomas Title: Xxxxxx Xxxx Xresident UBS SECURITIES WARBURG LLC By: /s/ Brian E. O'Hara -------------------------- Name: Brian E. O'Hara Title: Xxxxxxxx Xx: /s/ Jeffrey N. Lavine -------------------------- Name: Jeffrey N. Lavine Titxx: Xxxxxxxx Xxxxctor BANC OF AMERICA SECURITIES LLC Xxxx Xxx Xxxxxx By: /s/ Stephen L. Hogue -------------------------- Xxxxxx X. Xxxxxxxxx -------------------- ---------------------------- Name: Stephen L. Hogue TitlxXxxx Xxx Xxxxxx Name: Xxxxxx X. Xxxxxxxxx Title: Authorized Signatory Title: Director By: /s/ Xxxx Xxxxx ----------------------------- Name: Xxxx Xxxxx Title: Director DEUTSCHE BANK SECURITIES INC. By: /s/ Xxxxxx X. Xxxxxxxx ----------------------- Name: Xxxxxx X. Xxxxxxxx Title: Managing Director By: /S/ Xxxxxx X. Xxxxxxx ---------------------- Name: Xxxxxx X. Xxxxxxx Title: Vice President Confirmed and accepted as of the date first above written, solely for purposes of Sections 4(k), 5(g) and 7: UBS WARBURG REAL ESTATE SECURITIES INVESTMENTS INC. By: /s/ Brian E. O'Hara -------------------------- Xxxxxx X. Xxxxxxxxx ---------------------------- Name: Brian E. O'Hara Xxxxxx X. Xxxxxxxxx Title: Xxxxxxxx XxDirector By: /s/ Jeffrey N. Lavine -------------------------- Xxxx Xxxxx ---------------------------- Name: Jeffrey N. Lavine TitxxXxxx Xxxxx Title: Xxxxxxxx Xxxxctor Director Confirmed and accepted as of the date first above written, solely for purposes of Section 4(k) and 5(g): LEHMAN XXXXXX BROTHERS HOLDIXXX XXCHOLDINGS INC., DOING BUSINESS AS XXXXXX CAPITAL, A DIVISION OF XXXXXX BROTHERS HOLDINGS INC. By: /s/ Charlene Thomas -------------------------- /S/ Xxxxxxxx X. Xxxxxx ----------------------------------- Name: Charlene Thomas Xxxxxxxx X. Xxxxxx Title: Xxxxxx Xxxx Xresident Authorized Signatory SCHEDULE I Underwriting Agreement, dated as of August 24June 26, 2007 Title 2002. itle and Description of the Certificates: LB-UBS Commercial Mortgage Trust 20072002-C6C2, Certificates: Commercial Mortgage Pass-Through Certificates, Series 20072002-C6C2, Class A-1, Class A-2, Class X-0, Xxxxx X-XX, Xxxxx X-4X-0, Class A-1A, Class A-M, Class A-JA-4, Class B, Class C, Class D, Class E E, Class F and Class X CertificatesG Certificates Cut-off Date: June 11, 2002 Expected Closing Date: July 9, 2002

Waivers, Modifications and Amendments. Neither this Agreement nor any term hereof may be changed, waived, discharged or terminated except by a writing signed by the party against whom enforcement of such change, waiver, discharge or termination is sought. If the foregoing is in accordance with your understanding of our agreement, please sign and return to the undersigned a counterpart hereof, whereupon this instrument, along with all counterparts, and your acceptance shall represent a binding agreement between the Company, the Underwriters and the Mortgage Loan Sellers signing this Agreement for purposes of Section 4(k), Section 5(g) and, except in the case of LBHI, Section 7. Very truly yours, STRUCTURED ASSET SECURITIES CORPORATION II By: /s/ David Nass --------------------------------- Xxxxx Xxxx -------------------------------------- Name: David Nass Xxxxx Xxxx ------------------------------------ Title: Senior Vice President ----------------------------------- Confirmed and accepted as of the date first above written: LEHMAN XXXXXX BROTHERS INC. XxBy: /s/ Charlene Thomas -------------------------- Xxxxx Xxxx -------------------------------- Name: Charlene Thomas Xxxxx Xxxx Title: Xxxxxx Xxxx Xresident Managing Director UBS SECURITIES LLC By: /s/ Brian E. O'Hara -------------------------- Xxxx Xxxxx -------------------------------- Name: Brian E. O'Hara Xxxx Xxxxx Title: Xxxxxxxx XxManaging Director By: /s/ Jeffrey N. Lavine -------------------------- Xxxxxxx Xxxxxx -------------------------------- Name: Jeffrey N. Lavine TitxxXxxxxxx X. Xxxxxx Title: Xxxxxxxx Xxxxctor Managing Director BANC OF AMERICA SECURITIES LLC By: /s/ Stephen L. Hogue -------------------------- Xxxxxxx Xxxxx -------------------------------- Name: Stephen L. Hogue TitlxXxxxxxx X. Xxxxx Title: Xxxxxxxxx Principal LB-UBS 2008-C1 UNDERWRITING AGREEMENT Confirmed and accepted as of the date first above written, solely for purposes of Sections Section 3, Section 4(k), Section 5(g) and Section 7: UBS REAL ESTATE SECURITIES INC. By: /s/ Brian E. O'Hara -------------------------- Xxxxxxxx Xxxxxxx -------------------------------- Name: Brian E. O'Hara - Xxxxxxxx Xxxxxxx Title: Xxxxxxxx Xx- Director By: /s/ Jeffrey N. Lavine -------------------------- Xxxxx Xxxxx -------------------------------- Name: Jeffrey N. Lavine Titxx- Xxxxx Xxxxx Title: Xxxxxxxx Xxxxctor - Executive Director Confirmed and accepted as of the date first above written, solely for purposes of Section 4(k) and 5(g): LEHMAN XXXXXX BROTHERS HOLDIXXX XXCHOLDINGS INC. By: /s/ Charlene Thomas -------------------------- Xxxxx Xxxx -------------------------------- Name: Charlene Thomas - Xxxxx Xxxx Title: Xxxxxx Xxxx Xresident - Authorized Signatory LB-UBS 2008-C1 UNDERWRITING AGREEMENT SCHEDULE I Underwriting Agreement, dated as of August 24April 17, 2007 2008 Title and Description of the Certificates: LB-UBS Commercial Mortgage Trust 20072008-C6C1, Certificates: Commercial Mortgage Pass-Through Certificates, Series 20072008-C6C1, Class A-1, Class A-2A-AB, Class X-0, Xxxxx X-XX, Xxxxx X-4, Class A-1AA-2, Class A-M, M and Class A-J, Class B, Class C, Class D, Class E Class F and Class X J Certificates

Waivers, Modifications and Amendments. Neither this Agreement nor any term hereof may be changed, waived, discharged or terminated except by a writing signed by the party against whom enforcement of such change, waiver, discharge or termination is sought. If the foregoing is in accordance with your understanding of our agreement, please sign and return to the undersigned a counterpart hereof, whereupon this instrument, along with all counterparts, and your acceptance shall represent a binding agreement between the Company, the Underwriters and the Mortgage Loan Sellers signing this Agreement for purposes of Section 4(k), Section 5(g) and, except in the case of LBHI, Section and 7. Very truly yours, STRUCTURED ASSET SECURITIES CORPORATION II By: /s/ David Nass --------------------------------- -------------------------------- Name: David Nass Title: Senior Vice President Confirmed and accepted as of the date first above written: LEHMAN BROTHERS INC. Xx: /s/ Charlene Thomas -------------------------- Justin E. Driscoll ---------------------------- Name: Charlene Thomas TitleJustin E. Driscoll Xxxxx: Xxxxxx Xxxx Xresident Xxxxident UBS SECURITIES GLOBAL ASSET MANAGEMENT (US) INC. By: /s/ Robert W. Pettinato ---------------------------- Name: Robert W. Pettinato Xxxxx: Xxxxxxxxx Director By: /s/ Brad A. Cohen ---------------------------- Name: Brad A. Cohen Titxx: Xxxxxxxxx Director WACHOVIA CAPITAL MARKETS, LLC By: /s/ Brian E. O'Hara -------------------------- H. Royer Culp Jr. ---------------------------- Name: Brian E. O'Hara TitleH. Royer Culp Jr. Xxxxx: Xxxxxxxx Xx: /s/ Jeffrey N. Lavine -------------------------- Name: Jeffrey N. Lavine Titxx: Xxxxxxxx Xxxxctor BANC OF AMERICA SECURITIES LLC By: /s/ Stephen L. Hogue -------------------------- Name: Stephen L. Hogue Titlx: Xxxxxxxxx Vxxx President Confirmed and accepted as of the date first above written, solely for purposes of Sections 4(k), 5(g) and 7: UBS REAL ESTATE SECURITIES INVESTMENTS INC. By: /s/ Brian E. O'Hara -------------------------- Robert W. Pettinato --------------------------------- Name: Brian E. O'Hara TitleRobert W. Pettinato Xxxxx: Xxxxxxxx XxXxxxxxxxx Director By: /s/ Jeffrey N. Lavine -------------------------- Brad A. Cohen --------------------------------- Name: Jeffrey N. Lavine Brad A. Cohen Titxx: Xxxxxxxx Xxxxctor Xxxxxxxxx Director Confirmed and accepted as of the date first above written, solely for purposes of Section 4(k) and 5(g): LEHMAN BROTHERS HOLDIXXX XXC. By: /s/ Charlene Thomas -------------------------- Catherine Harnett --------------------------------- Name: Charlene Thomas TitleCatherine Harnett Xxxxx: Xxxxxx Xxxx Xresident Xxxxxxxxxd Signatory Confirmed and accepted as of the date first above written, solely for purposes of Section 4(k) and 5(g) and 7: WACHOVIA BANK, NATIONAL ASSOCIATION By: /s/ H. Royer Culp Jr. --------------------------------- Name: H. Royer Culp Jr. Xxxxx: Vxxx President SCHEDULE I Underwriting Agreement, dated as of August 24February 15, 2007 Title and Description of the LB-UBS Commercial Mortgage Trust 2007-C6C1, the Certificates: Commercial Mortgage Pass-Through Certificates, Series 2007-C6C1, Class A-1, Class A-2, Class X-0A-3, Xxxxx XClass A-XXAB, Xxxxx X-4Class A-4, Class A-1A, Class A-M, Class A-J, Class B, Class C, Class D, Class E Class F F, Class X-CP, and Class X X-W Certificates

Waivers, Modifications and Amendments. Neither this Agreement nor any term hereof may be changed, waived, discharged or terminated except by a writing signed by the party against whom enforcement of such change, waiver, discharge or termination is sought. If the foregoing is in accordance with your understanding of our agreement, please sign and return to the undersigned a counterpart hereof, whereupon this instrument, along with all counterparts, and your acceptance shall represent a binding agreement between the Company, the Underwriters and the Mortgage Loan Sellers signing this Agreement for purposes of Section 4(k), Section 5(g) and, except in the case of LBHI, Section and 7. Very truly yours, STRUCTURED ASSET SECURITIES CORPORATION II By: /s/ David Nass --------------------------------- Xxxxx Xxxx ----------------------------------- Name: David Nass Xxxxx Xxxx Title: Senior Vice President Confirmed and accepted as of the date first above written: LEHMAN XXXXXX BROTHERS INC. XxBy: /s/ Charlene Thomas -------------------------- Xxx Xxx ------------------------------------- Name: Charlene Thomas Xxx Xxx Title: Xxxxxx Xxxx Xresident Authorized Signatory UBS SECURITIES LLC By: /s/ Brian E. O'Hara -------------------------- Xxxxxx Xxxxxxxxx ------------------------------------- Name: Brian E. O'Hara Xxxxxx Xxxxxxxxx Title: Xxxxxxxx Xx: /s/ Jeffrey N. Lavine -------------------------- Name: Jeffrey N. Lavine Titxx: Xxxxxxxx Xxxxctor BANC OF AMERICA SECURITIES LLC Director By: /s/ Stephen L. Hogue -------------------------- Xxxxxx Xxxxx ------------------------------------- Name: Stephen L. Hogue TitlxXxxxxx Xxxxx Title: Xxxxxxxxx Director Confirmed and accepted as of the date first above written, solely for purposes of Sections 4(k), 5(g) and 7: UBS REAL ESTATE SECURITIES INVESTMENTS INC. By: /s/ Brian E. O'Hara -------------------------- Xxxxxx Xxxxxxxxx ------------------------------------- Name: Brian E. O'Hara Xxxxxx Xxxxxxxxx Title: Xxxxxxxx XxDirector By: /s/ Jeffrey N. Lavine -------------------------- Xxxxxx Xxxxx ------------------------------------- Name: Jeffrey N. Lavine TitxxXxxxxx Xxxxx Title: Xxxxxxxx Xxxxctor Director Confirmed and accepted as of the date first above written, solely for purposes of Section 4(k) and 5(g): LEHMAN XXXXXX BROTHERS HOLDIXXX XXCHOLDINGS INC., DOING BUSINESS AS XXXXXX CAPITAL, A DIVISION OF XXXXXX BROTHERS HOLDINGS INC. By: /s/ Charlene Thomas -------------------------- Xxxxxxxx Xxxxxx ------------------------------------- Name: Charlene Thomas Xxxxxxxx Xxxxxx Title: Xxxxxx Xxxx Xresident Authorized Signatory SCHEDULE I Underwriting Agreement, dated as of August 24September 23, 2007 2003. Title and Description of the Certificates: LB-UBS Commercial Mortgage Trust 20072003-C6C7, Certificates: Commercial Mortgage Pass-Through Certificates, Series 20072003-C6C7, Class A-1, Class A-2, Class X-0, Xxxxx X-XX, Xxxxx X-4X-0, Class A-1A, Class A-M, Class A-JA-4, Class B, Class C, Class D, Class E Class F C and Class X CertificatesD Certificates Cut-off Date: September 11, 2003 Expected Closing Date: October 9, 2003 CERTIFICATES -------------------------------------------------------------------------------------------------------------------------------- CLASS A-1 CLASS A-2 CLASS A-3 CLASS A-4 CLASS B --------- --------- --------- --------- ------- -------------------------------------------------------------------------------------------------------------------------------- Initial Aggregate Principal Amount $170,000,000 $239,000,000 $187,000,000 $355,336,000 $18,090,000 -------------------------------------------------------------------------------------------------------------------------------- Initial Pass-Through Rate 3.334% 4.064% 4.559% 4.931% 4.948% -------------------------------------------------------------------------------------------------------------------------------- Rating(1) AAA/Aaa AAA/Aaa AAA/Aaa AAA/Aaa AA+/Aa1 -------------------------------------------------------------------------------------------------------------------------------- Purchase Price(2) 100.49728% 100.49827% 100.49676% 100.18276% 100.47728% -------------------------------------------------------------------------------------------------------------------------------- ------------------------------------------------------------------------ CLASS C CLASS D ------- ------- ------------------------------------------------------------------------ Initial Aggregate Principal Amount $21,707,000 $16,281,000 ------------------------------------------------------------------------ Initial Pass-Through Rate 4.978% 5.018% ------------------------------------------------------------------------ Rating(1) AA/Aa2 AA-/Aa3 ------------------------------------------------------------------------ Purchase Price(2) 100.48066% 100.48519% ------------------------------------------------------------------------ ---------------

Waivers, Modifications and Amendments. Neither this Agreement nor any term hereof may be changed, waived, discharged or terminated except by a writing signed by the party against whom enforcement of such change, waiver, discharge or termination is sought. If the foregoing is in accordance with your understanding of our agreement, please sign and return to the undersigned a counterpart hereof, whereupon this instrument, along with all counterparts, and your acceptance shall represent a binding agreement between the Company, the Underwriters and the Mortgage Loan Sellers signing this Agreement for purposes of Section 4(k), Section 5(g) and, except in the case of LBHI, Section and 7. Very truly yours, STRUCTURED ASSET SECURITIES CORPORATION II By: /s/ David Nass --------------------------------- Xxxxx Xxxx --------------------------- Name: David Nass Xxxxx Xxxx Title: Senior Vice President Confirmed and accepted as of the date first above written: LEHMAN XXXXXX BROTHERS INC. XxBy: /s/ Charlene Thomas -------------------------- Xxx Xxx -------------------------------- Name: Charlene Thomas Xxx Xxx Title: Xxxxxx Xxxx Xresident President UBS SECURITIES LLC By: /s/ Brian E. O'Hara -------------------------- Xxxxxx Xxxxxxxxx -------------------------------- Name: Brian E. O'Hara Xxxxxx Xxxxxxxxx Title: Xxxxxxxx Xx: /s/ Jeffrey N. Lavine -------------------------- Name: Jeffrey N. Lavine Titxx: Xxxxxxxx Xxxxctor BANC OF AMERICA SECURITIES LLC Director By: /s/ Stephen L. Hogue -------------------------- Xxxx Xxxxx -------------------------------- Name: Stephen L. Hogue TitlxXxxx Xxxxx Title: Xxxxxxxxx Director Confirmed and accepted as of the date first above written, solely for purposes of Sections 4(k), 5(g) and 7: UBS REAL ESTATE SECURITIES INVESTMENTS INC. By: /s/ Brian E. O'Hara -------------------------- Xxxxxx Xxxxxxxxx -------------------------------- Name: Brian E. O'Hara Xxxxxx Xxxxxxxxx Title: Xxxxxxxx XxDirector By: /s/ Jeffrey N. Lavine -------------------------- Xxxx Xxxxx -------------------------------- Name: Jeffrey N. Lavine TitxxXxxx Xxxxx Title: Xxxxxxxx Xxxxctor Director Confirmed and accepted as of the date first above written, solely for purposes of Section 4(k) and 5(g): XXXXXX BROTHERS HOLDINGS INC., DOING BUSINESS AS LEHMAN CAPITAL, A DIVISION OF XXXXXX BROTHERS HOLDIXXX XXCHOLDINGS INC. By: /s/ Charlene Thomas -------------------------- Xxxxxxxx Xxxxxx -------------------------------- Name: Charlene Thomas Xxxxxxxx Xxxxxx Title: Xxxxxx Xxxx Xresident Authorized Signatory SCHEDULE I Underwriting Agreement, dated as of August 24November 12, 2007 2003. Title and Description of the Certificates: LB-UBS Commercial Mortgage Trust 20072003-C6C8, Certificates: Commercial Mortgage Pass-Pass- Through Certificates, Series 20072003-C6C8, Class A-1, Class A-2, Class X-0, Xxxxx X-XX, Xxxxx X-4A-3, Class A-1A, Class A-M, Class A-JA-4, Class B, Class C, Class D, Class E Class F C and Class X CertificatesD Certificates Cut-off Date: November 11, 2003 Expected Closing Date: November 25, 2003 CERTIFICATES ------------ ---------------------------------------------------------------------------------------------------------------------------------- CLASS A-1 CLASS A-2 CLASS A-3 CLASS A-4 CLASS B CLASS C CLASS D --------- --------- --------- --------- ------- ------- ------- ---------------------------------------------------------------------------------------------------------------------------------- Initial Aggregate Principal Amount $207,000,000 $280,000,000 $160,000,000 $546,259,000 $14,872,000 $14,872,000 $17,496,000 ---------------------------------------------------------------------------------------------------------------------------------- Initial Pass-Through Rate 3.636% 4.207% 4.830% 5.124% 5.178% 5.207% 5.237% ---------------------------------------------------------------------------------------------------------------------------------- Rating(1) AAA/Aaa AAA/Aaa AAA/Aaa AAA/Aaa AA+/Aa1 AA/Aa2 AA-/Aa3 ---------------------------------------------------------------------------------------------------------------------------------- Purchase Price(2) 100.49748% 100.49582% 100.49563% 100.49696% 100.49651% 100.49260% 100.49644% ---------------------------------------------------------------------------------------------------------------------------------- ---------------

Waivers, Modifications and Amendments. Neither this Agreement nor any term hereof may be changed, waived, discharged or terminated except by a writing signed by the party against whom enforcement of such change, waiver, discharge or termination is sought. If the foregoing is in accordance with your understanding of our agreement, please sign and return to the undersigned a counterpart hereof, whereupon this instrument, along with all counterparts, and your acceptance shall represent a binding agreement between the Company, the Underwriters and the Mortgage Loan Sellers signing this Agreement for purposes of Section 4(k), Section 5(g) and, except in the case of LBHI, Section 7. Very truly yours, STRUCTURED ASSET SECURITIES CORPORATION II By: /s/ David Nass --------------------------------- ------------------------------------ Name: David Nass Title: Senior Vice President Confirmed and accepted as of the date first above written: LEHMAN BROTHERS INC. Xx: /s/ Charlene Thomas -------------------------- Justin Driscoll --------------------------------- Name: Charlene Thomas Justin Driscoll Title: Xxxxxx Xxxx Xresident Xxxxxxxxt UBS SECURITIES LLC GLOBAL ASSET MANAGEMENT (US) INC. By: /s/ Brian E. O'Hara -------------------------- Robert W. Pettinato --------------------------------- Name: Brian E. O'Hara TitleRobert W. Pettinato Txxxx: Xxxxxxxx Xx: /s/ Jeffrey N. Lavine -------------------------- Name: Jeffrey N. Lavine Titxx: Xxxxxxxx Xxxxctor BANC OF AMERICA SECURITIES LLC Xxxxxxxxx Xxxector By: /s/ Stephen L. Hogue -------------------------- Brad A. Cohen --------------------------------- Name: Stephen L. Hogue TitlxBrad A. Cohen Title: Xxxxxxxxx Xxxector COUNTRYWIDE SECURITIES CORPORATION By: /s/ Grant Couch --------------------------------- Name: Grant Couch Title: Maxxxxxx Xxxxctor, COO Confirmed and accepted as of the date first above written, solely for purposes of Sections 4(k), 5(g) and 7: UBS REAL ESTATE SECURITIES INVESTMENTS INC. By: /s/ Brian E. O'Hara -------------------------- Robert W. Pettinato --------------------------------- Name: Brian E. O'Hara Robert W. Pettinato Txxxx: Xxxxxxxxx Xxxector By: /s/ Brad A. Cohen --------------------------------- Name: Brad A. Cohen Title: Xxxxxxxx Xx: /s/ Jeffrey N. Lavine -------------------------- Name: Jeffrey N. Lavine Titxx: Xxxxxxxx Xxxxctor Xxxxxxxxx Xxxector Confirmed and accepted as of the date first above written, solely for purposes of Section 4(k) and 5(g): LEHMAN BROTHERS HOLDIXXX XXC. By: /s/ Charlene Thomas -------------------------- Catherine Harnett --------------------------------- Name: Charlene Thomas Catherina Harnett Titxx: Xxxxxxxxxx Xxgnatory Confirmed and accepted as of the date first above written, solely for purposes of Section 4(k) and 5(g) and 7: GREENWICH CAPITAL FINANCIAL PRODUCTS, INC. By: /s/ Andrew B. Snow --------------------------------- Name: Andrew B. Snow Title: Xxxxxx Xxxx Xresident Confirmed and accepted as of the date first above written, solely for purposes of Section 4(k) and 5(g) and 7: COUNTRYWIDE COMMERCIAL REAL ESTATE FINANCE, INC. By: /s/ Jerry Y. Hirschkorn --------------------------------- Name: Jerry Y. Hirschkorn Txxxx: Xxxxx Xxxx Xxesident SCHEDULE I Underwriting Agreement, dated as of August April 24, 2007 Title and Description of the LB-UBS Commercial Mortgage Trust 2007-C6C2, Certificates: Commercial Mortgage Pass-Through Certificates, Series 2007-C6C2, Class A-1, Class A-2, Class X-0A-AB, Xxxxx X-XX, Xxxxx X-4Class A-3, Class A-1A, Class A-M, Class A-J, Class B, Class C, Class D, Class E Class F F, Class X-CP and Class X X-W Certificates

Waivers, Modifications and Amendments. Neither this Agreement nor any term hereof may be changed, waived, discharged or terminated except by a writing signed by the party against whom enforcement of such change, waiver, discharge or termination is sought. If the foregoing is in accordance with your understanding of our agreement, please sign and return to the undersigned a counterpart hereof, whereupon this instrument, along with all counterparts, and your acceptance shall represent a binding agreement between the Company, the Underwriters and the Mortgage Loan Sellers signing this Agreement for purposes of Section 4(k), Section 5(g) and, except in the case of LBHI, Section and 7. Very truly yours, STRUCTURED ASSET SECURITIES CORPORATION II By: /s/ David Nass --------------------------------- Xxxxx Xxxx -------------------------------------- Name: David Nass Xxxxx Xxxx Title: Senior Vice President Confirmed and accepted as of the date first above written: LEHMAN XXXXXX BROTHERS INC. XxBy: /s/ Charlene Thomas -------------------------- Xxxx X. Xxxxx ---------------------------------- Name: Charlene Thomas Xxxx X. Xxxxx Title: Xxxxxx Xxxx Xresident Vice President UBS SECURITIES LLC By: /s/ Brian E. O'Hara -------------------------- Xxxxxx Xxxxxxxxx ---------------------------------- Name: Brian E. O'Hara Xxxxxx Xxxxxxxxx Title: Xxxxxxxx Xx: /s/ Jeffrey N. Lavine -------------------------- Name: Jeffrey N. Lavine Titxx: Xxxxxxxx Xxxxctor BANC OF AMERICA SECURITIES LLC Director By: /s/ Stephen L. Hogue -------------------------- Xxxx Xxxxx ---------------------------------- Name: Stephen L. Hogue TitlxXxxx Xxxxx Title: Xxxxxxxxx Director Confirmed and accepted as of the date first above written, solely for purposes of Sections 4(k), 5(g) and 7: UBS REAL ESTATE SECURITIES INVESTMENTS INC. By: /s/ Brian E. O'Hara -------------------------- Xxxxxx Xxxxxxxxx ---------------------------------- Name: Brian E. O'Hara Xxxxxx Xxxxxxxxx Title: Xxxxxxxx XxDirector By: /s/ Jeffrey N. Lavine -------------------------- Xxxx Xxxxx ---------------------------------- Name: Jeffrey N. Lavine TitxxXxxx Xxxxx Title: Xxxxxxxx Xxxxctor Executive Director Confirmed and accepted as of the date first above written, solely for purposes of Section 4(k) and 5(g): LEHMAN XXXXXX BROTHERS HOLDIXXX XXCHOLDINGS INC. By: /s/ Charlene Thomas -------------------------- Xxxxxxxx Xxxxxx ---------------------------------- Name: Charlene Thomas Xxxxxxxx Xxxxxx Title: Xxxxxx Xxxx Xresident Authorized Signatory SCHEDULE I Underwriting Agreement, dated as of August 24March 23, 2007 2004 Title and Description of the LB-UBS Commercial Mortgage Trust 20072004-C6C2, Commercial the Certificates: Commercial Mortgage Pass-Through Certificates, Series 20072004-C6C2, Class A-1, Class A-2, Class X-0, Xxxxx X-XX, Xxxxx X-4X-0, Class A-1A, Class A-M, Class A-JA-4, Class B, Class C, Class D, Class E and Class F and Class X CertificatesCertificates Cut-off Date: March 11, 2004 Expected Closing Date: April 7, 2004 CERTIFICATES

Waivers, Modifications and Amendments. Neither this Agreement nor any term hereof may be changed, waived, discharged or terminated except by a writing signed by the party against whom enforcement of such change, waiver, discharge or termination is sought. If the foregoing is in accordance with your understanding of our agreement, please sign and return to the undersigned a counterpart hereof, whereupon this instrument, along with all counterparts, and your acceptance shall represent a binding agreement between the Company, the Underwriters and the Mortgage Loan Sellers signing this Agreement for purposes of Section 4(k), Section 5(g) and, except in the case of LBHI, Section and 7. Very truly yours, STRUCTURED ASSET SECURITIES CORPORATION II By: /s/ David Nass --------------------------------- Xxxxx Xxxx ----------------------------------- Name: David Nass Xxxxx Xxxx Title: Senior Vice President Confirmed and accepted as of the date first above written: LEHMAN XXXXXX BROTHERS INC. XxBy: /s/ Charlene Thomas -------------------------- Xxxxxx X. Xxxxxxxx ----------------------------- Name: Charlene Thomas Xxxxxx X. Xxxxxxxx Title: Vice President UBS GLOBAL ASSET MANAGEMENT (US) INC. By: /s/ Xxxxxx X. Xxxxxxxxx ------------------------------ Name: Xxxxxx X. Xxxxxxxxx Title: Executive Director By: /s/ Xxxx Xresident X. Xxxxx -------------------------------- Name: Xxxx X. Xxxxx Title: Executive Director UBS SECURITIES LLC By: /s/ Brian E. O'Hara -------------------------- Xxxx Xxxxxxxx -------------------------------- Name: Brian E. O'Hara Xxxx Xxxxxxxx Title: Xxxxxxxx Xx: /s/ Jeffrey N. Lavine -------------------------- Name: Jeffrey N. Lavine Titxx: Xxxxxxxx Xxxxctor BANC OF AMERICA SECURITIES LLC Director By: /s/ Stephen L. Hogue -------------------------- Xxxxxxx Xxxxxx -------------------------------- Name: Stephen L. Hogue TitlxXxxxxxx Xxxxxx Title: Xxxxxxxxx Director Confirmed and accepted as of the date first above written, solely for purposes of Sections 4(k), 5(g) and 7: UBS REAL ESTATE SECURITIES INVESTMENTS INC. By: /s/ Brian E. O'Hara -------------------------- Xxxxx X. Xxxxxx -------------------------------- Name: Brian E. O'Hara Xxxxx X. Xxxxxx Title: Xxxxxxxx XxDirector By: /s/ Jeffrey N. Lavine -------------------------- Xxxxxx XxXxxxxxx -------------------------------- Name: Jeffrey N. Lavine TitxxXxxxxx XxXxxxxxx Title: Xxxxxxxx Xxxxctor Executive Director Confirmed and accepted as of the date first above written, solely for purposes of Section 4(k) and 5(g): LEHMAN XXXXXX BROTHERS HOLDIXXX XXCHOLDINGS INC. By: /s/ Charlene Thomas -------------------------- Xxxxxxxxx Xxxxxxx -------------------------------- Name: Charlene Thomas Xxxxxxxxx Xxxxxxx Title: Xxxxxx Xxxx Xresident Authorized Signatory SCHEDULE I Underwriting Agreement, dated as of August 24September 22, 2007 2006 Title and Description of the Certificates: LB-UBS Commercial Mortgage Trust 20072006-C6, Certificates: Commercial Mortgage Pass-Through Certificates, Series 20072006-C6, Class A-1, Class A-2, Class X-0A-3, Xxxxx XClass A-XXAB, Xxxxx X-4Class A-4, Class A-1A, Class A-M, Class A-J, Class B, Class C, Class D, Class E Class F and Class X X-CP Certificates

Waivers, Modifications and Amendments. Neither this Agreement nor any term hereof may be changed, waived, discharged or terminated except by a writing signed by the party against whom enforcement of such change, waiver, discharge or termination is sought. If the foregoing is in accordance with your understanding of our agreement, please sign and return to the undersigned a counterpart hereof, whereupon this instrument, along with all counterparts, and your acceptance shall represent a binding agreement between the Company, the Underwriters and the Mortgage Loan Sellers signing this Agreement for purposes of Section 4(k), Section 5(g) and, except in the case of LBHI, Section and 7. Very truly yours, STRUCTURED ASSET SECURITIES CORPORATION II By: /s/ David Nass --------------------------------- -------------------------------------- Name: David Nass Title: Senior Vice President Confirmed and accepted as of the date first above written: LEHMAN BROTHERS INC. Xx-------------------- -------------------- By: /s/ Charlene Thomas -------------------------- By: ----------------------- ------------------------- Name: Charlene Thomas Name: Title: Xxxxxx Xxxx Xresident UBS SECURITIES LLC Title: By: /s/ Brian E. O'Hara -------------------------- ------------------------- Name: Brian E. O'Hara Title: Xxxxxxxx Xx-------------------- -------------------- By: /s/ Jeffrey N. Lavine -------------------------- By: ----------------------- ------------------------- Name: Jeffrey N. Lavine Titxx: Xxxxxxxx Xxxxctor BANC OF AMERICA SECURITIES LLC By: /s/ Stephen L. Hogue -------------------------- Name: Stephen L. Hogue TitlxTitle: Xxxxxxxxx Title: Confirmed and accepted as of the date first above written, solely for purposes of Sections 4(k), 5(g) and 7: UBS REAL ESTATE SECURITIES INC. --------------------------------- By: /s/ Brian E. O'Hara -------------------------- ----------------------------- Name: Brian E. O'Hara Title: Xxxxxxxx XxBy: /s/ Jeffrey N. Lavine -------------------------- ----------------------------- Name: Jeffrey N. Lavine TitxxTitle: Xxxxxxxx Xxxxctor Confirmed and accepted as of the date first above written, solely for purposes of Section 4(k) and 5(g): LEHMAN BROTHERS HOLDIXXX XXC. -----------------------------, DOING BUSINESS AS ______________, A DIVISION OF _____________________________ By: /s/ Charlene Thomas -------------------------- ----------------------------- Name: Charlene Thomas Title: Xxxxxx Xxxx Xresident SCHEDULE I Underwriting Agreement, dated as of August 24_________ __, 2007 ____. Title and Description of the LB-UBS Certificates: LB Commercial Mortgage Trust 2007____-C6__, Certificates: Commercial Mortgage Pass-Through Certificates, Series 2007____-C6__, Class A-1, Class A-2, Class X-0, Xxxxx X-XX, Xxxxx X-4A-3, Class A-1AA-4, Class A-M, Class A-JA-5, Class B, Class C, Class D, Class E E, Class F and Class X CertificatesG Certificates Cut-off Date: ___________ __, ____ Expected Closing Date: __________ __, ____ CERTIFICATES ------------------------------------------------------------------------------------------------ CLASS A-1 CLASS A-2 CLASS A-3 CLASS A-4 CLASS A-5 ------------------------------------------------------------------------------------------------ Initial Aggregate Principal Amount $ $ $ $ $ ------------------------------------------------------------------------------------------------ Initial Pass-Through Rate % % % % % ------------------------------------------------------------------------------------------------

Waivers, Modifications and Amendments. Neither this Agreement nor any term hereof may be changed, waived, discharged or terminated except by a writing signed by the party against whom enforcement of such change, waiver, discharge or termination is sought. If the foregoing is in accordance with your understanding of our agreement, please sign and return to the undersigned a counterpart hereof, whereupon this instrument, along with all counterparts, and your acceptance shall represent a binding agreement between the Company, the Underwriters Company and the Mortgage Loan Sellers signing this Agreement for purposes of Section 4(k), Section 5(g) and, except in the case of LBHI, Section 7Underwriters. Very truly yours, STRUCTURED ASSET SECURITIES CORPORATION II By: /s/ David Nass --------------------------------- ------------------------------------- Name: David Nass Title: Senior Vice President Confirmed and accepted as of the date first above written: LEHMAN XXXXXX BROTHERS INC. Xx: /s/ Charlene Thomas -------------------------- Name: Charlene Thomas Title: Xxxxxx Xxxx Xresident UBS SECURITIES WARBURG LLC By: /s/ Brian E. O'Hara -------------------------- By: ------------------------------- ---------------------------------- Name: Brian E. O'Hara Name: Title: Xxxxxxxx XxTitle: /s/ Jeffrey N. Lavine -------------------------- DEUTSCHE BANK SECURITIES INC. By: ---------------------------------- Name: Jeffrey N. Lavine TitxxTitle: Xxxxxxxx Xxxxctor BANC OF AMERICA SECURITIES LLC By: /s/ Stephen L. Hogue -------------------------- ------------------------------- Name: Stephen L. Hogue TitlxTitle: Xxxxxxxxx By: ------------------------------- Name: Title: Confirmed and accepted as of the date first above written, solely for purposes of Sections 4(k), 5(g) and 7: UBS WARBURG REAL ESTATE SECURITIES INVESTMENTS INC. By: /s/ Brian E. O'Hara -------------------------- -------------------------------- Name: Brian E. O'Hara Title: Xxxxxxxx XxBy: /s/ Jeffrey N. Lavine -------------------------- -------------------------------- Name: Jeffrey N. Lavine Titxx: Xxxxxxxx Xxxxctor Confirmed and accepted as of the date first above written, solely for purposes of Section 4(k) and 5(g): LEHMAN BROTHERS HOLDIXXX XXC. By: /s/ Charlene Thomas -------------------------- Name: Charlene Thomas Title: Xxxxxx Xxxx Xresident SCHEDULE I Underwriting Agreement, dated as of August 24December 14, 2007 2000. Title and Description of the Certificates: LB-UBS Commercial Mortgage Trust 20072000-C6C5, Certificates: Commercial Mortgage Pass-Through Certificates, Series 20072000-C6C5, Class A-1, Class A-2, Class X-0, Xxxxx X-XX, Xxxxx X-4, Class A-1A, Class A-M, Class A-J, Class B, Class C, Class D, Class E E, Class F F, and Class X CertificatesG. Cut-off Date: December 11, 2000 Expected Closing Date: December 21, 2000 CERTIFICATES ------------------------------------------------------------------------------------------------------------------------------------ CLASS A-1 CLASS A-2 CLASS B CLASS C CLASS D CLASS E CLASS F CLASS G --------- --------- ------- ------- ------- ------- ------- ------- ------------------------------------------------------------------------------------------------------------------------------------ Initial Aggregate Actual or Notional Principal Amount $352,757,000 $440,000,000 $44,873,000 $44,873,000 $14,958,000 $7,479,000 $12,464,000 $9,972,000 ------------------------------------------------------------------------------------------------------------------------------------ Initial Pass-Through Rate 6.41% 6.51% 6.61% 6.76% 6.87% 7.29% 7.31% 7.80% ------------------------------------------------------------------------------------------------------------------------------------ Rating(1) AAA/Aaa AAA/Aaa AA/a2 A/A2 A-/A3 BBB+/Baa1 BBB/Baa2 BBB-/Baa3 ------------------------------------------------------------------------------------------------------------------------------------ Purchase Price(2) 100.46792% 100.44920% 99.95592% 99.98364% 99.93442% 99.94682% 99.95078% 99.94201% ------------------------------------------------------------------------------------------------------------------------------------ ---------------

Waivers, Modifications and Amendments. Neither this Agreement nor any term hereof may be changed, waived, discharged or terminated except by a writing signed by the party against whom enforcement of such change, waiver, discharge or termination is sought. If the foregoing is in accordance with your understanding of our agreement, please sign and return to the undersigned a counterpart hereof, whereupon this instrument, along with all counterparts, and your acceptance shall represent a binding agreement between the Company, the Underwriters and the Mortgage Loan Sellers signing this Agreement for purposes of Section 4(k), Section 5(g) and, except in the case of LBHI, Section and 7. Very truly yours, STRUCTURED ASSET SECURITIES CORPORATION II By: /s/ David Nass --------------------------------- ------------------------------------ Name: David Nass Title: Senior Vice President Vicx Xxxxxxxxt Confirmed and accepted as of the date first above written: LEHMAN BROTHERS INC. XxBy: /s/ Charlene Thomas -------------------------- Catherine Harnett --------------------------------- Name: Charlene Thomas Cathxxxxx Xxxxxxx Title: Xxxxxx Xxxx Xresident Authorized Signatory UBS SECURITIES LLC Xx: /x/ Xxxxxx W. Pettinato --------------------------------- Name: Roxxxx X. Xxxxxxxxx Title: Executive Director By: /s/ Brian E. O'Hara -------------------------- Brad A. Coxxx --------------------------------- Name: Brian E. O'Hara TitleBrad A. Xxxxx Xxxle: Xxxxxxxx Xx: /s/ Jeffrey N. Lavine -------------------------- Name: Jeffrey N. Lavine Titxx: Xxxxxxxx Xxxxctor BANC OF AMERICA SECURITIES LLC By: /s/ Stephen L. Hogue -------------------------- Name: Stephen L. Hogue Titlx: Xxxxxxxxx Executive Director Confirmed and accepted as of the date xx xx xxx xxxe first above written, solely for purposes of Sections 4(k), 5(g) and 7: UBS REAL ESTATE SECURITIES INVESTMENTS INC. By: /s/ Brian E. O'Hara -------------------------- Robert W. Pettinato --------------------------------- Name: Brian E. O'Hara Roxxxx X. Xxxxxxxxx Title: Xxxxxxxx XxExecutive Director By: /s/ Jeffrey N. Lavine -------------------------- Brad A. Coxxx --------------------------------- Name: Jeffrey N. Lavine TitxxBrad A. Xxxxx Xxxle: Xxxxxxxx Xxxxctor Executive Director Confirmed and accepted as of the date xx xxx xxxx first above written, solely for purposes of Section 4(k) and 5(g): LEHMAN BROTHERS HOLDIXXX XXCHOLDINGS INC. By: /s/ Charlene Thomas -------------------------- --------------------------------- Name: Charlene Thomas TitleCharlexx Xxxxxx Xitle: Xxxxxx Xxxx Xresident Authorized Signatory SCHEDULE I Underwriting Agreement, dated as of August 24October 25, 2007 2005 Title and Description of the Certificates: LB-UBS Commercial Mortgage Trust 20072005-C6C7, Certificates: Commercial Mortgage Pass-Through Certificates, Series 20072005-C6C7, Class A-1, Class A-2, Class X-0A-3, Xxxxx XClass A-XXAB, Xxxxx X-4Class A-4, Class A-1A, Class A-M, Class A-J, Class B, Class C, Class D, Class E E, Class F and Class X X-CP Certificates

Waivers, Modifications and Amendments. Neither this Agreement nor any term hereof may be changed, waived, discharged or terminated except by a writing signed by the party against whom enforcement of such change, waiver, discharge or termination is sought. If the foregoing is in accordance with your understanding of our agreement, please sign and return to the undersigned a counterpart hereof, whereupon this instrument, along with all counterparts, and your acceptance shall represent a binding agreement between the Company, the Underwriters and the Mortgage Loan Sellers signing this Agreement for purposes of Section 4(k), Section 5(g) and, except in the case of LBHI, Section and 7. Very truly yours, STRUCTURED ASSET SECURITIES CORPORATION II By: /s/ David Nass --------------------------------- Xxxxx Xxxxxxxx ----------------------------------- Name: David Nass Xxxxx Xxxxxxxx Title: Senior Vice President Confirmed and accepted as of the date first above written: LEHMAN XXXXXX BROTHERS INC. XxBy: /s/ Charlene Thomas -------------------------- Xxxxxx X. Xxxxxxxx ---------------------------------- Name: Charlene Thomas Xxxxxx X. Xxxxxxxx Title: Xxxxxx Xxxx Xresident Vice President UBS SECURITIES LLC By: /s/ Brian E. O'Hara -------------------------- Xxxxx X. Xxxxx ---------------------------------- Name: Brian E. O'Hara Xxxxx X. Xxxxx Title: Xxxxxxxx Xx: /s/ Jeffrey N. Lavine -------------------------- Name: Jeffrey N. Lavine Titxx: Xxxxxxxx Xxxxctor BANC OF AMERICA SECURITIES LLC Managing Director By: /s/ Stephen L. Hogue -------------------------- Xxxxx X. Xxxx ---------------------------------- Name: Stephen L. Hogue TitlxXxxxx X. Xxxx Title: Xxxxxxxxx Managing Director Confirmed and accepted as of the date first above written, solely for purposes of Sections 4(k), 5(g) and 7: UBS REAL ESTATE SECURITIES INVESTMENTS INC. By: /s/ Brian E. O'Hara -------------------------- Xxxxxx X. Xxxxxxxxx ---------------------------------- Name: Brian E. O'Hara Xxxxxx X. Xxxxxxxxx Title: Xxxxxxxx XxExecutive Director By: /s/ Jeffrey N. Lavine -------------------------- Xxxx X. Xxxxx ---------------------------------- Name: Jeffrey N. Lavine TitxxXxxx X. Xxxxx Title: Xxxxxxxx Xxxxctor Executive Director Confirmed and accepted as of the date first above written, solely for purposes of Section 4(k) and 5(g): LEHMAN XXXXXX BROTHERS HOLDIXXX XXCHOLDINGS INC. By: /s/ Charlene Thomas -------------------------- Xxxxxxxxx Xxxxxxx ---------------------------------- Name: Charlene Thomas Xxxxxxxxx Xxxxxxx Title: Xxxxxx Xxxx Xresident Authorized Signatory SCHEDULE I Underwriting Agreement, dated as of August 24June 20, 2007 2006 Title and Description of the Certificates: LB-UBS Commercial Mortgage Trust 20072006-C6C4, Certificates: Commercial Mortgage Pass-Through Certificates, Series 20072006-C6C4, Class A-1, Class A-2, Class X-0A-3, Xxxxx XClass A-XXAB, Xxxxx X-4Class A-4, Class A-1A, Class A-M, Class A-J, Class B, Class C, Class D, Class E and Class F and Class X Certificates

Waivers, Modifications and Amendments. Neither this Agreement nor any term hereof may be changed, waived, discharged or terminated except by a writing signed by the party against whom enforcement of such change, waiver, discharge or termination is sought. If the foregoing is in accordance with your understanding of our agreement, please sign and return to the undersigned a counterpart hereof, whereupon this instrument, along with all counterparts, and your acceptance shall represent a binding agreement between the Company, the Underwriters and the Mortgage Loan Sellers signing this Agreement for purposes of Section 4(k), Section 5(g) and, except in the case of LBHI, Section and 7. Very truly yours, STRUCTURED ASSET SECURITIES CORPORATION II By: /s/ David Nass --------------------------------- Xxxxx Xxxx --------------------------------------- Name: David Nass Xxxxx Xxxx Title: Senior Vice President Confirmed and accepted as of the date first above written: LEHMAN XXXXXX BROTHERS INC. XxBy: /s/ Charlene Thomas -------------------------- Xxxxxx X. Xxxxxxxx ----------------------------------- Name: Charlene Thomas Xxxxxx X. Xxxxxxxx Title: Xxxxxx Xxxx Xresident Vice President UBS SECURITIES LLC By: /s/ Brian E. O'Hara -------------------------- Xxxxxx X. Xxxxxxxxx ----------------------------------- Name: Brian E. O'Hara Xxxxxx X. Xxxxxxxxx Title: Xxxxxxxx Xx: /s/ Jeffrey N. Lavine -------------------------- Name: Jeffrey N. Lavine Titxx: Xxxxxxxx Xxxxctor BANC OF AMERICA SECURITIES LLC Executive Director By: /s/ Stephen L. Hogue -------------------------- Xxxxxx X. Xxxxx ----------------------------------- Name: Stephen L. Hogue TitlxXxxxxx X. Xxxxx Title: Xxxxxxxxx Executive Director Confirmed and accepted as of the date first above written, solely for purposes of Sections 4(k), 5(g) and 7: UBS REAL ESTATE SECURITIES INVESTMENTS INC. By: /s/ Brian E. O'Hara -------------------------- Xxxxxx X. Xxxxxxxxx ----------------------------------- Name: Brian E. O'Hara Xxxxxx X. Xxxxxxxxx Title: Xxxxxxxx XxExecutive Director By: /s/ Jeffrey N. Lavine -------------------------- Xxxxxx X. Xxxxx ----------------------------------- Name: Jeffrey N. Lavine TitxxXxxxxx X. Xxxxx Title: Xxxxxxxx Xxxxctor Executive Director Confirmed and accepted as of the date first above written, solely for purposes of Section 4(k) and 5(g): LEHMAN XXXXXX BROTHERS HOLDIXXX XXCHOLDINGS INC. By: /s/ Charlene Thomas -------------------------- Xxxxxxxx Xxxxxx ----------------------------------- Name: Charlene Thomas Xxxxxxxx Xxxxxx Title: Xxxxxx Xxxx Xresident Authorized Signatory SCHEDULE I Underwriting Agreement, dated as of August 24April 11, 2007 2005 Title and Description of the Certificates: LB-UBS Commercial Mortgage Trust 20072005-C6C2, Certificates: Commercial Mortgage Pass-Through Certificates, Series 20072005-C6C2, Class A-1, Class A-2, Class X-0, Xxxxx X-XX, Xxxxx X-4A-3, Class A-1AA-4, Class A-MAB, Class A-5, Class A-J, Class B, Class C, Class D, Class E Class F and Class X CertificatesX-CP Certificates Cut-off Date: April 11, 2005. Expected Closing Date: April 20, 2005 CERTIFICATES ------------ ----------------------------------------------------------------------------------------------------------------------- CLASS A-1 CLASS A-2 CLASS A-3 CLASS A-4 CLASS A-AB CLASS A-5 --------- --------- --------- --------- ---------- --------- ----------------------------------------------------------------------------------------------------------------------- Initial Aggregate Principal Amount $70,000,000 $551,000,000 $81,000,000 $304,700,000 $76,000,000 $470,704,000 ----------------------------------------------------------------------------------------------------------------------- Initial Pass-Through Rate 4.590% 4.821% 4.912% 4.998% 5.007% 5.150% ----------------------------------------------------------------------------------------------------------------------- Rating(1) Aaa/AAA Aaa/AAA Aaa/AAA Aaa/AAA Aaa/AAA Aaa/AAA ----------------------------------------------------------------------------------------------------------------------- Purchase Price(2) 100.49922% 100.49734% 100.49549% 100.49798% 100.49714% 100.49835% ----------------------------------------------------------------------------------------------------------------------- ------------------------------------------------------------------------------------------------------------------------ CLASS A-J CLASS B CLASS C CLASS D CLASS E CLASS X-CP --------- ------- ------- ------- ------- ---------- ------------------------------------------------------------------------------------------------------------------------

Waivers, Modifications and Amendments. Neither this Agreement nor any term hereof may be changed, waived, discharged or terminated except by a writing signed by the party against whom enforcement of such change, waiver, discharge or termination is sought. If the foregoing is in accordance with your understanding of our agreement, please sign and return to the undersigned a counterpart hereof, whereupon this instrument, along with all counterparts, and your acceptance shall represent a binding agreement between the Company, the Underwriters and the Mortgage Loan Sellers signing this Agreement for purposes of Section 4(k), Section 5(g) and, except in the case of LBHI, Section and 7. Very truly yours, STRUCTURED ASSET SECURITIES CORPORATION II By: /s/ David Nass --------------------------------- Xxxxxxxx Xxxxxx ------------------------------- Name: David Nass Xxxxxxxx Xxxxxx Title: Senior Vice President Confirmed and accepted as of the date first above written: LEHMAN XXXXXX BROTHERS INC. Xx: /s/ Charlene Thomas -------------------------- Name: Charlene Thomas Title: Xxxxxx Xxxx Xresident UBS SECURITIES WARBURG LLC By: /s/ Brian E. O'Hara -------------------------- Name: Brian E. O'Hara Title: Xxxxxxxx Xx: /s/ Jeffrey N. Lavine -------------------------- Name: Jeffrey N. Lavine Titxx: Xxxxxxxx Xxxxctor BANC OF AMERICA SECURITIES LLC Xxxx Xxx Xxxxxx By: /s/ Stephen L. Hogue -------------------------- Xxxxxx Xxxxxxxxx ------------------------------- -------------------------------- Name: Stephen L. Hogue TitlxXxxx Xxx Xxxxxx Name: Xxxxxx Xxxxxxxxx Title: Authorized Signatory Title: Director By: /s/ Xxxxxx X. Xxxxx -------------------------------- Name: Xxxxxx X. Xxxxx Title: Director XXXXXXX XXXXX XXXXXX INC. By:/s/ Xxxxx Xxxxxxx -------------------------------- Name: Xxxxx Xxxxxxx Title: Director Confirmed and accepted as of the date first above written, solely for purposes of Sections 4(k), 5(g) and 7: UBS WARBURG REAL ESTATE SECURITIES INVESTMENTS INC. By: /s/ Brian E. O'Hara -------------------------- Xxxxxx Xxxxxxxxx --------------------------------- Name: Brian E. O'Hara Xxxxxx Xxxxxxxxx Title: Xxxxxxxx XxDirector By: /s/ Jeffrey N. Lavine -------------------------- Xxxxxx X. Xxxxx --------------------------------- Name: Jeffrey N. Lavine TitxxXxxxxx X. Xxxxx Title: Xxxxxxxx Xxxxctor Director Confirmed and accepted as of the date first above written, solely for purposes of Section 4(k) and 5(g): XXXXXX BROTHERS HOLDINGS INC., DOING BUSINESS AS LEHMAN CAPITAL, A DIVISION OF XXXXXX BROTHERS HOLDIXXX XXCHOLDINGS INC. By: /s/ Charlene Thomas -------------------------- Xxxxxxxx X. Xxxxxx --------------------------------- Name: Charlene Thomas Xxxxxxxx X. Xxxxxx Title: Xxxxxx Xxxx Xresident Authorized Signatory SCHEDULE I Underwriting Agreement, dated as of August 24March 22, 2007 2002. Title and Description of the Certificates: LB-UBS Commercial Mortgage Trust 20072002-C6C1, Certificates: Commercial Mortgage Pass-Pass- Through Certificates, Series 20072002-C6C1, Class A-1, Class A-2, Class X-0, Xxxxx X-XX, Xxxxx X-4A-3, Class A-1A, Class A-M, Class A-JA-4, Class B, Class C, Class D, Class E and Class F and Class X CertificatesCertificates Cut-off Date: March 11, 2002 Expected Closing Date: April 2, 2002 CERTIFICATES

Waivers, Modifications and Amendments. Neither this Agreement nor any term hereof may be changed, waived, discharged or terminated except by a writing signed by the party against whom enforcement of such change, waiver, discharge or termination is sought. If the foregoing is in accordance with your understanding of our agreement, please sign and return to the undersigned a counterpart hereof, whereupon this instrument, along with all counterparts, and your acceptance shall represent a binding agreement between the Company, the Underwriters Company and the Mortgage Loan Sellers signing this Agreement for purposes of Section 4(k), Section 5(g) and, except in the case of LBHI, Section 7Underwriters. Very truly yours, STRUCTURED ASSET SECURITIES CORPORATION II By: /s/ David Nass --------------------------------- ------------------------------- Name: David Nass Title: Senior Vice President Confirmed and accepted as of the date first above written: LEHMAN XXXXXX BROTHERS INC. Xx: /s/ Charlene Thomas -------------------------- Name: Charlene Thomas Title: Xxxxxx Xxxx Xresident UBS SECURITIES WARBURG LLC By: /s/ Brian E. O'Hara -------------------------- _________________________________ By: ______________________________ Name: Brian E. O'Hara Name: Title: Xxxxxxxx XxTitle: /s/ Jeffrey N. Lavine -------------------------- DEUTSCHE BANK SECURITIES INC. By: ______________________________ Name: Jeffrey N. Lavine TitxxTitle: Xxxxxxxx Xxxxctor BANC OF AMERICA SECURITIES LLC By: /s/ Stephen L. Hogue -------------------------- _________________________________ Name: Stephen L. Hogue TitlxTitle: Xxxxxxxxx By: _________________________________ Name: Title: Confirmed and accepted as of the date first above written, solely for purposes of Sections 4(k), 5(g) and 7: UBS REAL ESTATE SECURITIES INC. PRINCIPAL FINANCE LLC By: /s/ Brian E. O'Hara -------------------------- _________________________________ Name: Brian E. O'Hara Title: Xxxxxxxx XxBy: /s/ Jeffrey N. Lavine -------------------------- _________________________________ Name: Jeffrey N. Lavine Titxx: Xxxxxxxx Xxxxctor Confirmed and accepted as of the date first above written, solely for purposes of Section 4(k) and 5(g): LEHMAN BROTHERS HOLDIXXX XXC. By: /s/ Charlene Thomas -------------------------- Name: Charlene Thomas Title: Xxxxxx Xxxx Xresident SCHEDULE I Underwriting Agreement, dated as of August 24September 21, 2007 2000. Title and Description of the Certificates: LB-UBS Commercial Mortgage Trust 20072000-C6C4, Certificates: Commercial Mortgage Pass-Through Certificates, Series 20072000-C6C4, Class A-1, Class A-2, Class X-0, Xxxxx X-XX, Xxxxx X-4, Class A-1A, Class A-M, Class A-J, Class B, Class C, Class D, Class E E, Class F and Class X CertificatesG. Cut-off Date: September 11, 2000 Expected Closing Date: September 28, 2000 CERTIFICATES

Waivers, Modifications and Amendments. Neither this Agreement nor any term hereof may be changed, waived, discharged or terminated except by a writing signed by the party against whom enforcement of such change, waiver, discharge or termination is sought. If the foregoing is in accordance with your understanding of our agreement, please sign and return to the undersigned a counterpart hereof, whereupon this instrument, along with all counterparts, and your acceptance shall represent a binding agreement between the Company, the Underwriters and the Mortgage Loan Sellers signing this Agreement for purposes of Section 4(k), Section 5(g) and, except in the case of LBHI, Section and 7. Very truly yours, STRUCTURED ASSET SECURITIES CORPORATION II By: /s/ David Nass --------------------------------- Xxxxx Xxxx --------------------------------------- Name: David Nass Xxxxx Xxxx Title: Senior Vice President Confirmed and accepted as of the date first above written: LEHMAN XXXXXX BROTHERS INC. XxBy: /s/ Charlene Thomas -------------------------- Xxxxxx Xxxxxxxx --------------------------------- Name: Charlene Thomas Xxxxxx Xxxxxxxx Title: Xxxxxx Xxxx Xresident Vice President UBS SECURITIES LLC By: /s/ Brian E. O'Hara -------------------------- Xxxxxx Xxxxxxxxx --------------------------------- Name: Brian E. O'Hara Xxxxxx Xxxxxxxxx Title: Xxxxxxxx Xx: /s/ Jeffrey N. Lavine -------------------------- Name: Jeffrey N. Lavine Titxx: Xxxxxxxx Xxxxctor BANC OF AMERICA SECURITIES LLC Director By: /s/ Stephen L. Hogue -------------------------- Xxxx Xxxxx --------------------------------- Name: Stephen L. Hogue TitlxXxxx Xxxxx Title: Xxxxxxxxx Director Confirmed and accepted as of the date first above written, solely for purposes of Sections 4(k), 5(g) and 7: UBS REAL ESTATE SECURITIES INVESTMENTS INC. By: /s/ Brian E. O'Hara -------------------------- Xxxxxx Xxxxxxxxx --------------------------------- Name: Brian E. O'Hara Xxxxxx Xxxxxxxxx Title: Xxxxxxxx XxDirector By: /s/ Jeffrey N. Lavine -------------------------- Xxxx Xxxxx --------------------------------- Name: Jeffrey N. Lavine TitxxXxxx Xxxxx Title: Xxxxxxxx Xxxxctor Director Confirmed and accepted as of the date first above written, solely for purposes of Section 4(k) and 5(g): LEHMAN XXXXXX BROTHERS HOLDIXXX XXCHOLDINGS INC. By: /s/ Charlene Thomas -------------------------- Xxxxxxxx Xxxxxx --------------------------------- Name: Charlene Thomas Xxxxxxxx Xxxxxx Title: Xxxxxx Xxxx Xresident Authorized Signatory SCHEDULE I Underwriting Agreement, dated as of August 24January 31, 2007 2005 Title and Description of the Certificates: LB-UBS Commercial Mortgage Trust 20072005-C6C1, Certificates: Commercial Mortgage Pass-Through Certificates, Series 20072005-C6C1, Class A-1, Class A-2, Class X-0, Xxxxx X-XX, Xxxxx X-4, Class A-1AA-3, Class A-MAB, Class A-4, Class A-1A, Class A-J, Class B, Class C, Class D, Class E Class F and Class X CertificatesX-CP Certificates Cut-off Date: January 11, 2005 Expected Closing Date: February 10, 2005 CERTIFICATES ------------ ------------------------------------------------------------------------------------------------------------------------------------ CLASS A-1 CLASS A-2 CLASS A-3 CLASS A-AB CLASS A-4 CLASS A-1A --------- --------- --------- ---------- --------- ---------- ------------------------------------------------------------------------------------------------------------------------------------ Initial Aggregate $53,000,000 $232,000,000 $162,000,000 $54,000,000 $531,842,000 $186,798,000 Principal Amount ------------------------------------------------------------------------------------------------------------------------------------ Initial Pass-Through Rate 4.063% 4.310% 4.545% 4.568% 4.742% 4.581% ------------------------------------------------------------------------------------------------------------------------------------ Rating(1) AAA/Aaa AAA/Aaa AAA/Aaa AAA/Aaa AAA/Aaa AAA/Aaa ------------------------------------------------------------------------------------------------------------------------------------ Purchase Price(2) 100.49742% 100.49883% 100.49524% 100.49808% 100.49956% 100.49650% ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ CLASS A-J CLASS B CLASS C CLASS D CLASS E CLASS X-CP --------- ------- ------- ------- ------- ---------- ------------------------------------------------------------------------------------------------------------------------------------ Initial Aggregate $102,769,000 $13,351,000 $26,704,000 $19,073,000 $24,796,000 $1,419,314,000(3) Principal Amount ------------------------------------------------------------------------------------------------------------------------------------ Initial Pass-Through Rate 4.806% 4.816% 4.836% 4.856% 4.924% 0.794%(4) ------------------------------------------------------------------------------------------------------------------------------------ Rating(1) AAA/Aaa AA+/Aa1 AA/Aa2 AA-/Aa3 A/A2 AAA/Aaa ------------------------------------------------------------------------------------------------------------------------------------ Purchase Price(2) 100.49352% 100.49469% 100.49707% 100.49945% 100.49215% 3.99148% ------------------------------------------------------------------------------------------------------------------------------------ ---------------

Waivers, Modifications and Amendments. Neither this Agreement nor any term hereof may be changed, waived, discharged or terminated except by a writing signed by the party against whom enforcement of such change, waiver, discharge or termination is sought. If the foregoing is in accordance with your understanding of our agreement, please sign and return to the undersigned a counterpart hereof, whereupon this instrument, along with all counterparts, and your acceptance shall represent a binding agreement between the Company, the Underwriters and the Mortgage Loan Sellers signing this Agreement for purposes of Section 4(k), Section 5(g) and, except in the case of LBHI, Section and 7. Very truly yours, STRUCTURED ASSET SECURITIES CORPORATION II By: /s/ David Nass --------------------------------- Xxxxx Xxxxxxxx ------------------------------------ Name: David Nass Xxxxx Xxxxxxxx Title: Senior Vice President Confirmed and accepted as of the date first above written: LEHMAN XXXXXX BROTHERS INC. Xx: /s/ Charlene Thomas -------------------------- Name: Charlene Thomas Title: Xxxxxx Xxxx Xresident UBS SECURITIES WARBURG LLC By: /s/ Brian E. O'Hara -------------------------- Name: Brian E. O'Hara Title: Xxxxxxxx Xx: /s/ Jeffrey N. Lavine -------------------------- Name: Jeffrey N. Lavine Titxx: Xxxxxxxx Xxxxctor BANC OF AMERICA SECURITIES LLC Xxxx X. Xxxxxxx By: /s/ Stephen L. Hogue -------------------------- Xxxxxx Xxxxxxxxx ----------------------------------- --------------------------- Name: Stephen L. Hogue TitlxXxxx X. Xxxxxxx Name: Xxxxxx Xxxxxxxxx Title: Authorized Signatory Title: Director By: /s/ Xxxx Xxxxx --------------------------- Name: Xxxx Xxxxx Title: Director Confirmed and accepted as of the date first above written, solely for purposes of Sections 4(k), 5(g) and 7: UBS WARBURG REAL ESTATE SECURITIES INVESTMENTS INC. By: /s/ Brian E. O'Hara -------------------------- Xxxx Xxxxx ---------------------------- Name: Brian E. O'Hara Xxxx Xxxxx Title: Xxxxxxxx XxDirector By: /s/ Jeffrey N. Lavine -------------------------- Xxxxxx Xxxxxxxxx ---------------------------- Name: Jeffrey N. Lavine TitxxXxxxxx Xxxxxxxxx Title: Xxxxxxxx Xxxxctor Director Confirmed and accepted as of the date first above written, solely for purposes of Section 4(k) and 5(g): LEHMAN XXXXXX BROTHERS HOLDIXXX XXCHOLDINGS INC., DOING BUSINESS AS XXXXXX CAPITAL, A DIVISION OF XXXXXX BROTHERS HOLDINGS INC. By: /s/ Charlene Thomas -------------------------- Xxx Xxx ---------------------------- Name: Charlene Thomas Xxx Xxx Title: Xxxxxx Xxxx Xresident Authorized Signatory SCHEDULE I Underwriting Agreement, dated as of August 24December 18, 2007 2002. Title and Description of the Certificates: LB-UBS Commercial Mortgage Trust 20072002-C6C7, Certificates: Commercial Mortgage Pass-Through Certificates, Series 20072002-C6C7, Class A-1, Class A-2, Class X-0, Xxxxx X-XX, Xxxxx X-4X-0, Class A-1A, Class A-M, Class A-JA-4, Class B, Class C, Class D, Class E E, Class F and Class X CertificatesG Certificates Cut-off Date: December 11, 2002 Expected Closing Date: December 27, 2002 CERTIFICATES ------------ -------------------------------------------------------------------------------------------------------------------------- CLASS A-1 CLASS A-2 CLASS A-3 CLASS A-4 CLASS B --------- --------- --------- --------- ------- -------------------------------------------------------------------------------------------------------------------------- Initial Aggregate Principal Amount $63,000,000 $190,000,000 $100,000,000 $394,367,000 $20,779,000 -------------------------------------------------------------------------------------------------------------------------- Initial Pass-Through Rate 3.170% 3.899% 4.659% 4.960% 5.081% -------------------------------------------------------------------------------------------------------------------------- Rating(1) AAA/AAA AAA/AAA AAA/AAA AAA/AAA AA+/AA+ -------------------------------------------------------------------------------------------------------------------------- Purchase Price(2) 100.49787% 100.49573% 100.49456% 100.49647% 100.49612% -------------------------------------------------------------------------------------------------------------------------- ------------------------------------------------------------------------------------------------------------------------- CLASS C CLASS D CLASS E CLASS F CLASS G ------- ------- ------- ------- ------- ------------------------------------------------------------------------------------------------------------------------- Initial Aggregate Principal Amount $17,811,000 $17,811,000 $14,843,000 $14,843,000 $14,842,000 ------------------------------------------------------------------------------------------------------------------------- Initial Pass-Through Rate 5.101% 5.160% 5.209% 5.248% 5.333% ------------------------------------------------------------------------------------------------------------------------- Rating(1) AA/AA AA-/AA- A+/A+ A/A A-/A- ------------------------------------------------------------------------------------------------------------------------- Purchase Price(2) 100.49863% 100.49842% 100.49702% 100.49442% 100.49452% ------------------------------------------------------------------------------------------------------------------------- ---------------

Waivers, Modifications and Amendments. Neither this Agreement nor any term hereof may be changed, waived, discharged or terminated except by a writing signed by the party against whom enforcement of such change, waiver, discharge or termination is sought. If the foregoing is in accordance with your understanding of our agreement, please sign and return to the undersigned a counterpart hereof, whereupon this instrument, along with all counterparts, and your acceptance shall represent a binding agreement between the Company, the Underwriters and the Mortgage Loan Sellers signing this Agreement for purposes of Section 4(k), Section 5(g) and, except in the case of LBHI, Section 7. Very truly yours, STRUCTURED ASSET SECURITIES CORPORATION II By: /s/ David Nass --------------------------------- Xxxxx Xxxx ------------------------------------ Name: David Nass Xxxxx Xxxx Title: Senior Vice President Confirmed and accepted as of the date first above written: LEHMAN XXXXXX BROTHERS INC. XxBy: /s/ Charlene Thomas -------------------------- Xxxxxxxx Xxxxxx --------------------------------- Name: Charlene Thomas Xxxxxxxx Xxxxxx Title: Xxxxxx Xxxx Xresident Senior Vice President UBS SECURITIES LLC By: /s/ Brian E. O'Hara -------------------------- Xxxxx X. X'Xxxx --------------------------------- Name: Brian E. O'Hara Xxxxx X. X'Xxxx Title: Xxxxxxxx XxManaging Director By: /s/ Jeffrey N. Lavine -------------------------- Xxxx X. Xxxxx --------------------------------- Name: Jeffrey N. Lavine TitxxXxxx X. Xxxxx Title: Xxxxxxxx Xxxxctor BANC OF AMERICA SECURITIES Managing Director WACHOVIA CAPITAL MARKETS, LLC By: /s/ Stephen L. Hogue -------------------------- Xxxxxx Xxxxxx --------------------------------- Name: Stephen L. Hogue TitlxXxxxxx Xxxxxx Title: Xxxxxxxxx Vice President LB-UBS 2007-C7 UNDERWRITING AGREEMENT Confirmed and accepted as of the date first above written, solely for purposes of Sections Section 3, Section 4(k), Section 5(g) and Section 7: UBS REAL ESTATE SECURITIES INC. By: /s/ Brian E. O'Hara -------------------------- Xxxxx X. X'Xxxx --------------------------------- Name: Brian E. O'Hara Xxxxx X. X'Xxxx Title: Xxxxxxxx XxManaging Director By: /s/ Jeffrey N. Lavine -------------------------- Xxxx X. Xxxxx --------------------------------- Name: Jeffrey N. Lavine TitxxXxxx X. Xxxxx Title: Xxxxxxxx Xxxxctor Managing Director Confirmed and accepted as of the date first above written, solely for purposes of Section 2, Section 3, Section 4(k), Section 5(g) and Section 7: KEYBANK NATIONAL ASSOCIATION By: /s/ Xxxx X. Xxxxxxx --------------------------------- Name: Xxxx X. Xxxxxxx Title: Authorized Official Confirmed and accepted as of the date first above written, solely for purposes of Section 4(k) and 5(g): LEHMAN XXXXXX BROTHERS HOLDIXXX XXCHOLDINGS INC. By: /s/ Charlene Thomas -------------------------- Xxxxxxxx Xxxxxx --------------------------------- Name: Charlene Thomas Xxxxxxxx Xxxxxx Title: Xxxxxx Xxxx Xresident Authorized Signatory LB-UBS 2007-C7 UNDERWRITING AGREEMENT SCHEDULE I Underwriting Agreement, dated as of August 24November 20, 2007 Title and Description of the Certificates: LB-UBS Commercial Mortgage Trust 2007-C6C7, Certificates: Commercial Mortgage Pass-Through Certificates, Series 2007-C6, Class A-1, Class A-2C7, Class X-0, Xxxxx XX-0, Class A-XXAB, Xxxxx X-4Class A-3, Class A-1A, Class A-M, Class A-J, Class B, Class C, Class D, Class E Class F F, Class X-CP and Class X X-W Certificates

Waivers, Modifications and Amendments. Neither this Agreement nor any term hereof may be changed, waived, discharged or terminated except by a writing signed by the party against whom enforcement of such change, waiver, discharge or termination is sought. If the foregoing is in accordance with your understanding of our agreement, please sign and return to the undersigned a counterpart hereof, whereupon this instrument, along with all counterparts, and your acceptance shall represent a binding agreement between the Company, the Underwriters and the Mortgage Loan Sellers signing this Agreement for purposes of Section 4(k), Section 5(g) and, except in the case of LBHI, Section and 7. Very truly yours, STRUCTURED ASSET SECURITIES CORPORATION II By: /s/ David Nass --------------------------------- ------------------------------ Name: David Nass Title: Senior Vice President Confirmed and accepted as of the date first above written: LEHMAN XXXXXX BROTHERS INC. XxBy: /s/ Charlene Thomas -------------------------- ------------------------------ Name: Charlene Thomas Title: Xxxxxx Xxxx Xresident UBS SECURITIES LLC By: /s/ Brian E. O'Hara -------------------------- ------------------------------ Name: Brian E. O'Hara Title: Xxxxxxxx XxBy: /s/ Jeffrey N. Lavine -------------------------- ------------------------------ Name: Jeffrey N. Lavine TitxxTitle: Xxxxxxxx Xxxxctor BANC OF AMERICA SECURITIES LLC By: /s/ Stephen L. Hogue -------------------------- Name: Stephen L. Hogue Titlx: Xxxxxxxxx Confirmed and accepted as of the date first above written, solely for purposes of Sections 4(k), 5(g) and 7: UBS REAL ESTATE SECURITIES INVESTMENTS INC. By: /s/ Brian E. O'Hara -------------------------- ------------------------------ Name: Brian E. O'Hara Title: Xxxxxxxx XxBy: /s/ Jeffrey N. Lavine -------------------------- ------------------------------ Name: Jeffrey N. Lavine TitxxTitle: Xxxxxxxx Xxxxctor Confirmed and accepted as of the date first above written, solely for purposes of Section 4(k) and 5(g): LEHMAN XXXXXX BROTHERS HOLDIXXX XXCHOLDINGS INC. By: /s/ Charlene Thomas -------------------------- ------------------------------ Name: Charlene Thomas Title: Xxxxxx Xxxx Xresident SCHEDULE I Underwriting Agreement, dated as of August 24___________, 2007 200_ Title and Description of the Certificates: LB-UBS Commercial Mortgage Trust 2007-C6200_-C_, Certificates: Commercial Mortgage Pass-Through Certificates, Series 2007-C6200_-C_, [Class A-1, Class A-2, Class X-0, Xxxxx XX-0, Class A-XXAB, Xxxxx X-4Class A-4, Class A-1A, Class A-M, Class A-J, Class B, Class C, Class D, Class E E, Class F and Class X X-CP] Certificates

Waivers, Modifications and Amendments. Neither this Agreement nor any term hereof may be changed, waived, discharged or terminated except by a writing signed by the party against whom enforcement of such change, waiver, discharge or termination is sought. If the foregoing is in accordance with your understanding of our agreement, please sign and return to the undersigned a counterpart hereof, whereupon this instrument, along with all counterparts, and your acceptance shall represent a binding agreement between the Company, the Underwriters and the Mortgage Loan Sellers signing this Agreement for purposes of Section 4(k), Section 5(g) and, except in the case of LBHI, Section and 7. Very truly yours, STRUCTURED ASSET SECURITIES CORPORATION II By: /s/ David Nass --------------------------------- Xxxxx Xxxx ----------------------------------- Name: David Nass Xxxxx Xxxx Title: Senior Vice President Confirmed and accepted as of the date first above written: LEHMAN XXXXXX BROTHERS INC. XxBy: /s/ Charlene Thomas -------------------------- Xxxxxx X. Xxxxxxxx ----------------------------------- Name: Charlene Thomas Xxxxxx X. Xxxxxxxx Title: Xxxxxx Xxxx Xresident Vice President UBS SECURITIES LLC By: /s/ Brian E. O'Hara -------------------------- Xxxxxx Xxxxxxxxx ----------------------------------- Name: Brian E. O'Hara Xxxxxx Xxxxxxxxx Title: Xxxxxxxx Xx: /s/ Jeffrey N. Lavine -------------------------- Name: Jeffrey N. Lavine Titxx: Xxxxxxxx Xxxxctor BANC OF AMERICA SECURITIES LLC Director By: /s/ Stephen L. Hogue -------------------------- Xxxx Xxxxx ----------------------------------- Name: Stephen L. Hogue TitlxXxxx Xxxxx Title: Xxxxxxxxx Director Confirmed and accepted as of the date first above written, solely for purposes of Sections 4(k), 5(g) and 7: UBS REAL ESTATE SECURITIES INVESTMENTS INC. By: /s/ Brian E. O'Hara -------------------------- Xxxxxx Xxxxxxxxx ----------------------------------- Name: Brian E. O'Hara Xxxxxx Xxxxxxxxx Title: Xxxxxxxx XxDirector By: /s/ Jeffrey N. Lavine -------------------------- Xxxx Xxxxx ----------------------------------- Name: Jeffrey N. Lavine TitxxXxxx Xxxxx Title: Xxxxxxxx Xxxxctor Executive Director Confirmed and accepted as of the date first above written, solely for purposes of Section 4(k) and 5(g): LEHMAN XXXXXX BROTHERS HOLDIXXX XXCHOLDINGS INC. By: /s/ Charlene Thomas -------------------------- Xxxxxxxx Xxxxxx ----------------------------------- Name: Charlene Thomas Xxxxxxxx Xxxxxx Title: Xxxxxx Xxxx Xresident Authorized Signatory SCHEDULE I Underwriting Agreement, dated as of August 24January 23, 2007 2004 Title and Description of the Certificates: LB-UBS Commercial Mortgage Trust 20072004-C6C1, Certificates: Commercial Mortgage Pass-Pass- Through Certificates, Series 20072004-C6C1, Class A-1, Class A-2, Class X-0, Xxxxx X-XX, Xxxxx X-4X-0, Class A-1A, Class A-M, Class A-JA-4, Class B, Class C, Class D, Class E and Class F and Class X CertificatesCertificates Cut-off Date: January 12, 2004 Expected Closing Date: February 4, 2004 CERTIFICATES ------------ ------------------------------------------------------------------------------------------------- CLASS A-1 CLASS A-2 CLASS A-3 CLASS A-4 CLASS B --------- --------- --------- --------- ------- ------------------------------------------------------------------------------------------------- Initial Aggregate Principal Amount $153,000,000 $213,000,000 $113,000,000 $751,262,000 $12,463,000 ------------------------------------------------------------------------------------------------- Initial Pass-Through Rate 2.964% 3.624% 4.361% 4.568% 4.810% ------------------------------------------------------------------------------------------------- Rating(1) AAA/Aaa AAA/Aaa AAA/Aaa AAA/Aaa AA+/Aa1 ------------------------------------------------------------------------------------------------- Purchase Price(2) 100.49778% 98.75994% 100.49976% 100.49330% 100.49304% ------------------------------------------------------------------------------------------------- ----------------------------------------------------------------------------- CLASS C CLASS D CLASS E CLASS F ------- ------- ------- ------- ----------------------------------------------------------------------------- Initial Aggregate Principal Amount $12,463,000 $16,023,000 $21,365,000 $12,463,000 ----------------------------------------------------------------------------- Initial Pass-Through Rate 4.846% 4.945% 4.979% 4.999% ----------------------------------------------------------------------------- Rating(1) XX/Xx0 XX-/Xx0 X+/X0 X/X0 ----------------------------------------------------------------------------- Purchase Price(2) 100.49499% 100.49918% 100.49427% 100.49726% ----------------------------------------------------------------------------- ---------------

Waivers, Modifications and Amendments. Neither this Agreement nor any term hereof may be changed, waived, discharged or terminated except by a writing signed by the party against whom enforcement of such change, waiver, discharge or termination is sought. If the foregoing is in accordance with your understanding of our agreement, please sign and return to the undersigned a counterpart hereof, whereupon this instrument, along with all counterparts, and your acceptance shall represent a binding agreement between the Company, the Underwriters and the Mortgage Loan Sellers signing this Agreement for purposes of Section 4(k), Section 5(g) and, except in the case of LBHI, Section and 7. Very truly yours, STRUCTURED ASSET SECURITIES CORPORATION II By: /s/ David Nass --------------------------------- Xxxxxxxx Xxxxxx ------------------------------------- Name: David Nass Xxxxxxxx Xxxxxx Title: Senior Vice President Confirmed and accepted as of the date first above written: LEHMAN XXXXXX BROTHERS INC. Xx: /s/ Charlene Thomas -------------------------- Name: Charlene Thomas Title: Xxxxxx Xxxx Xresident UBS SECURITIES WARBURG LLC By: /s/ Brian E. O'Hara -------------------------- Name: Brian E. O'Hara Title: Xxxxxxxx Xx: /s/ Jeffrey N. Lavine -------------------------- Name: Jeffrey N. Lavine Titxx: Xxxxxxxx Xxxxctor BANC OF AMERICA SECURITIES LLC Xxxxxxx Xxxxx By: /s/ Stephen L. Hogue -------------------------- Xxxxxx Xxxxxxxxx ----------------------------- ---------------------------- Name: Stephen L. Hogue TitlxXxxxxxx Xxxxx Name: Xxxxxx Xxxxxxxxx Title: Title: Director By: /s/ Xxxx Xxxxx ---------------------------- Name: Xxxx Xxxxx Title: Director CREDIT SUISSE FIRST BOSTON XXXXXXX XXXXX XXXXXX INC. CORPORATION By: /s/ Xxxxxxx Xxxxxxxxxx By: /s/ Xxxxx Xxxxxxx ------------------------------ ---------------------------- Name: Xxxxxxx Xxxxxxxxxx Name: Xxxxx Xxxxxxx Title: Vice President Title: Managing Director Confirmed and accepted as of the date first above written, solely for purposes of Sections 4(k), 5(g) and 7: UBS WARBURG REAL ESTATE SECURITIES INVESTMENTS INC. By: /s/ Brian E. O'Hara -------------------------- Xxxxxx Xxxxxxxxx ----------------------------------- Name: Brian E. O'Hara Xxxxxx Xxxxxxxxx Title: Xxxxxxxx XxDirector By: /s/ Jeffrey N. Lavine -------------------------- Xxxx Xxxxx ----------------------------------- Name: Jeffrey N. Lavine TitxxXxxx Xxxxx Title: Xxxxxxxx Xxxxctor Director Confirmed and accepted as of the date first above written, solely for purposes of Section 4(k) and 5(g): LEHMAN XXXXXX BROTHERS HOLDIXXX XXCHOLDINGS INC., DOING BUSINESS AS XXXXXX CAPITAL, A DIVISION OF XXXXXX BROTHERS HOLDINGS INC. By: /s/ Charlene Thomas -------------------------- Xxxxx X. Xxxxxxx ----------------------------------- Name: Charlene Thomas Xxxxx X. Xxxxxxx Title: Xxxxxx Xxxx Xresident Authorized Signatory SCHEDULE I Underwriting Agreement, dated as of August 24September 26, 2007 2002. Title and Description of the Certificates: LB-UBS Commercial Mortgage Trust 20072002-C6C4, Certificates: Commercial Mortgage Pass-Through Certificates, Series 20072002-C6C4, Class A-1, Class A-2, Class X-0, Xxxxx X-XX, Xxxxx X-4X-0, Class A-1AA-4, Class A-M, Class A-JA-5, Class B, Class C, Class D, Class E E, Class F and Class X CertificatesG Certificates Cut-off Date: September 11, 2002 Expected Closing Date: October 8, 2002 CERTIFICATES ------------------------------------------------------------------------------------------------------------------------------ CLASS A-1 CLASS A-2 CLASS A-3 CLASS A-4 CLASS A-5 CLASS B CLASS C --------- --------- --------- --------- --------- ------- ------- ------------------------------------------------------------------------------------------------------------------------------ Initial Aggregate Principal Amount $75,000,000 $90,000,000 $150,000,000 $86,000,000 $850,504,000 $18,191,000 $20,009,000 ------------------------------------------------------------------------------------------------------------------------------ Initial Pass-Through Rate 3.268% 4.023% 4.071% 4.563% 4.853% 4.899% 4.938% ------------------------------------------------------------------------------------------------------------------------------ Rating(1) AAA/AAA AAA/AAA AAA/AAA AAA/AAA AAA/AAA AA+/AA+ AA/AA ------------------------------------------------------------------------------------------------------------------------------ Purchase Price(2) 100.49886% 100.49892% 99.80077% 100.49597% 100.49328% 100.49890% 100.49588% ------------------------------------------------------------------------------------------------------------------------------ ----------------------------------------------------------------------------- CLASS D CLASS E CLASS F CLASS G ------- ------- ------- ------- ----------------------------------------------------------------------------- Initial Aggregate Principal Amount $20,010,000 $12,733,000 $16,372,000 $10,914,000 ----------------------------------------------------------------------------- Initial Pass-Through Rate 4.987% 5.007% 5.036% 5.125% ----------------------------------------------------------------------------- Rating(1) AA-/AA- A+/A+ A/A A-/A- ----------------------------------------------------------------------------- Purchase Price(2) 100.49415% 100.49661% 100.49250% 100.49597% ----------------------------------------------------------------------------- ---------------

Waivers, Modifications and Amendments. Neither this Agreement nor any term hereof may be changed, waived, discharged or terminated except by a writing signed by the party against whom enforcement of such change, waiver, discharge or termination is sought. If the foregoing is in accordance with your understanding of our agreement, please sign and return to the undersigned a counterpart hereof, whereupon this instrument, along with all counterparts, and your acceptance shall represent a binding agreement between the Company, the Underwriters and the Mortgage Loan Sellers signing this Agreement for purposes of Section 4(k), Section 5(g) and, except in the case of LBHI, Section and 7. Very truly yours, STRUCTURED ASSET SECURITIES CORPORATION II By: /s/ David Nass --------------------------------- Xxxxx Xxxx ----------------------------- Name: David Nass Xxxxx Xxxx Title: Senior Vice President Confirmed and accepted as of the date first above written: LEHMAN XXXXXX BROTHERS INC. XxBy: /s/ Charlene Thomas -------------------------- Xxxxxx X. Xxxxxxxx --------------------------------- Name: Charlene Thomas Xxxxxx X. Xxxxxxxx Title: Xxxxxx Xxxx Xresident Vice President UBS SECURITIES LLC By: /s/ Brian E. O'Hara -------------------------- Xxxxxx Xxxxxxxxx --------------------------------- Name: Brian E. O'Hara Xxxxxx Xxxxxxxxx Title: Xxxxxxxx Xx: /s/ Jeffrey N. Lavine -------------------------- Name: Jeffrey N. Lavine Titxx: Xxxxxxxx Xxxxctor BANC OF AMERICA SECURITIES LLC Director By: /s/ Stephen L. Hogue -------------------------- Xxxx Xxxxx --------------------------------- Name: Stephen L. Hogue TitlxXxxx Xxxxx Title: Xxxxxxxxx Executive Director Confirmed and accepted as of the date first above written, solely for purposes of Sections 4(k), 5(g) and 7: UBS REAL ESTATE SECURITIES INVESTMENTS INC. By: /s/ Brian E. O'Hara -------------------------- Xxxxxx Xxxxxxxxx --------------------------------- Name: Brian E. O'Hara Xxxxxx Xxxxxxxxx Title: Xxxxxxxx XxDirector By: /s/ Jeffrey N. Lavine -------------------------- Xxxx Xxxxx --------------------------------- Name: Jeffrey N. Lavine TitxxXxxx Xxxxx Title: Xxxxxxxx Xxxxctor Executive Director Confirmed and accepted as of the date first above written, solely for purposes of Section 4(k) and 5(g): LEHMAN XXXXXX BROTHERS HOLDIXXX XXCHOLDINGS INC. By: /s/ Charlene Thomas -------------------------- Xxxxxxxx Xxxxxx --------------------------------- Name: Charlene Thomas Xxxxxxxx Xxxxxx Title: Xxxxxx Xxxx Xresident Authorized Signatory SCHEDULE I Underwriting Agreement, dated as of August 24May 25, 2007 2004 Title and Description of the Certificates: LB-UBS Commercial Mortgage Trust 20072004-C6C4, Certificates: Commercial Mortgage Pass-Through Certificates, Series 20072004-C6C4, Class A-1, Class A-2, Class X-0, Xxxxx X-XX, Xxxxx X-4X-0, Class A-1A, Class A-M, Class A-JA-4, Class B, Class C, Class D, Class E and Class F and Class X CertificatesCertificates Cut-off Date: May 11, 2004 Expected Closing Date: June 7, 2004 CERTIFICATES