Common use of Lower-Tier REMIC Clause in Contracts

Lower-Tier REMIC. The Lower Tier REMIC shall issue the following interests, and each such interest, other than the Class LT-R Interest, is hereby designated as a regular interest in the Lower Tier REMIC. The Class LT-R Interest is hereby designated as the sole class of residual interest in the Lower Tier REMIC and shall be represented by the Class R-II Certificates. Lower Tier Corresponding Lower Tier REMIC REMIC Interest Initial Lower Tier Upper Tier REMIC Class Designation Rate REMIC Principal Amount Regular Interest ----------------- -------------- ---------------------------------- ---------------- Class LT-A-1 (1) 1/2 Corresponding Upper Tier REMIC A-1 Regular Interest initial Class Principal Balance Class LT-A-2 (1) 1/2 Corresponding Upper Tier REMIC A-2 egular Interest initial lass Principal Balance Class LT-A-3 (1) 1/2 Corresponding Upper Tier REMIC A-3 Regular Interest initial Class Principal Balance Class LT-M-1 (1) 1/2 Corresponding Upper Tier REMIC M-1 Regular Interest initial Class Principal Balance Class LT-M-2 (1) 1/2 Corresponding Upper Tier REMIC M-2 Regular Interest initial Class Principal Balance Class LT-M-3 (1) 1/2 Corresponding Upper Tier REMIC M-3 Regular Interest initial Class Principal Balance Class LT-M-4 (1) 1/2 Corresponding Upper Tier REMIC M-4 Regular Interest initial Class Principal Balance Class LT-M-5 (1) 1/2 Corresponding Upper Tier REMIC M-5 Regular Interest initial Class Principal Balance Class LT-B-1 (1) 1/2 Corresponding Upper Tier REMIC B-1 Regular Interest initial Class Principal Balance Class LT-B-2 (1) 1/2 Corresponding Upper Tier REMIC B-2 Regular Interest initial Class Principal Balance Class LT-B-3 (1) 1/2 Corresponding Upper Tier REMIC B-3 Regular Interest initial Class Principal Balance Class LT-B-4 (1) 1/2 Corresponding Upper Tier REMIC B-4 Regular Interest initial Class Principal Balance Class LT-Accrual (1) 1/2 Pool Stated Principal Balance N/A plus 1/2 Subordinated Amount Class LT-IO (4) (4) N/A Class LT-R (5) (5) N/A

Lower-Tier REMIC. The Lower Tier REMIC shall issue the following interests, and each such interest, other than the Class LT-R Interest, is hereby designated as a regular interest in the Lower Tier REMIC. The Class LT-R Interest is hereby designated as the sole class of residual interest in the Lower Tier REMIC and shall be represented by the Class R-II R Certificates. Lower Tier Corresponding Lower Tier REMIC REMIC Interest Initial Lower Tier Upper Tier REMIC Class Designation Rate REMIC Principal Amount Regular Interest ----------------- -------------- ---------------------------------- ---------------- Class LT-A-1 (1) 1/2 Corresponding Upper Tier REMIC A-1 Regular Interest initial Class Principal Balance Class LT-A-2 (1) 1/2 Corresponding Upper Tier REMIC A-2 egular Regular Interest initial lass Class Principal Balance Class LT-A-3 (1) 1/2 Corresponding Upper Tier REMIC A-3 Regular Interest initial Class Principal Balance Class LT-M-1 (1) 1/2 Corresponding Upper Tier REMIC M-1 Regular Interest initial Class Principal Balance Class LT-M-2 (1) 1/2 Corresponding Upper Tier REMIC M-2 Regular Interest initial Class Principal Balance Class LT-M-3 (1) 1/2 Corresponding Upper Tier REMIC M-3 Regular Interest initial Class Principal Balance Class LT-M-4 (1) 1/2 Corresponding Upper Tier REMIC M-4 Regular Interest initial Class Principal Balance Class LT-M-5 (1) 1/2 Corresponding Upper Tier REMIC M-5 Regular Interest initial Class Principal Balance Class LT-B-1 (1) 1/2 Corresponding Upper Tier REMIC B-1 Regular Interest initial Class Principal Balance Class LT-B-2 (1) 1/2 Corresponding Upper Tier REMIC B-2 Regular Interest initial Class Principal Balance Class LT-B-3 (1) 1/2 Corresponding Upper Tier REMIC B-3 Regular Interest initial Class Principal Balance Class LT-B-4 (1) 1/2 Corresponding Upper Tier REMIC B-4 Regular Interest initial Class Principal Balance Class LT-Accrual (1) 1/2 Pool Stated Principal Balance N/A plus 1/2 Subordinated Amount Class LT-IO (42) (42) N/A Class LT-R (53) (53) N/AA ------------------------------

Lower-Tier REMIC. The Lower Tier REMIC shall issue the following interests, and each such interest, other than the Class LT-R Interest, is hereby designated as a regular interest in the Lower Tier REMIC. The Class LT-R Interest is hereby designated as the sole class of residual interest in the Lower Tier REMIC and shall be represented by the Class R-II R Certificates. Corresponding Lower Tier Corresponding Upper Tier Lower Tier REMIC REMIC Interest Initial Lower Tier Upper Tier REMIC Regular Class Designation Interest Rate REMIC Principal Amount Regular Interest ----------------- -------------- ---------------------------------- ---------------- ------------- ---------------------- ------------- Class LT-A-1 (1) 1/2 1/4 initial Corresponding Upper Tier REMIC A-1 Regular Interest initial Class Certificate's Certificate Principal Balance Class LT-A-2 A-2A (1) 1/2 1/4 initial Corresponding Upper Tier REMIC A-2 egular Interest initial lass A-2A Certificate's Certificate Principal Balance Class LT-A-3 A-2B (1) 1/2 1/4 initial Corresponding Upper Tier REMIC A-3 Regular Interest A-2B Certificate's Certificate Principal Balance Class LT-A-2C (1) 1/4 initial Corresponding A-2C Certificate's Certificate Principal Balance Class LT-A-2D (1) 1/4 initial Corresponding A-2D Certificate's Certificate Principal Balance Class LT-M-1 (1) 1/2 1/4 initial Corresponding Upper Tier REMIC M-1 Regular Interest initial Class Certificate's Certificate Principal Balance Class LT-M-2 (1) 1/2 1/4 initial Corresponding Upper Tier REMIC M-2 Regular Interest initial Class Certificate's Certificate Principal Balance Class LT-M-3 (1) 1/2 1/4 initial Corresponding Upper Tier REMIC M-3 Regular Interest initial Class Certificate's Certificate Principal Balance Class LT-M-4 (1) 1/2 1/4 initial Corresponding Upper Tier REMIC M-4 Regular Interest initial Class Certificate's Certificate Principal Balance Class LT-M-5 (1) 1/2 1/4 initial Corresponding Upper Tier REMIC M-5 Regular Interest initial Class Certificate's Certificate Principal Balance Class LT-B-1 M-6 (1) 1/2 1/4 initial Corresponding Upper Tier REMIC B-1 Regular Interest initial Class M-6 Certificate's Certificate Principal Balance Class LT-B-2 M-7 (1) 1/2 1/4 initial Corresponding Upper Tier REMIC B-2 Regular Interest initial Class M-7 Certificate's Certificate Principal Balance Class LT-B-3 M-8 (1) 1/2 1/4 initial Corresponding Upper Tier REMIC B-3 Regular Interest initial Class M-8 Certificate's Certificate Principal Balance Class LT-B-4 M-9 (1) 1/2 1/4 initial Corresponding Upper Tier REMIC B-4 Regular Interest M-9 Certificate's Certificate Principal Balance Class LT-M-10 (1) 1/4 initial Corresponding M-10 Certificate's Certificate Principal Balance Class LT-M-11 (1) 1/4 initial Corresponding M-11 Certificate's Certificate Principal Balance Class LT-Accrual (1) 1/2 Pool 1/4 Stated Principal Balance N/A of the Mortgage Loans plus 1/2 Subordinated 1/4 Overcollateralization Amount Class LT-IO Group (1) 0.0001% initial Group N/A I(SUB) Subordinate Amount of the Group I Mortgage Loans Class LT-Group I (2) 0.0001% initial aggregate N/A Stated Principal Balance of the Group I Mortgage Loans Class LT-Group (1) 0.0001% initial Group N/A II(SUB) Subordinate Amount of the Group II Mortgage Loans Class LT-Group II (3) 0.0001% initial aggregate N/A Stated Principal Balance of the Group II Mortgage Loans Class LT-XX (1) 1/2 initial aggregate Stated N/A Principal Balance of the Mortgage Loans, less aggregate Initial Lower Tier REMIC Principal Amounts of Class LT-Group I(SUB), Class LT-Group I, Class LT-Group II(SUB) and Class LT-Group II Interests and less $75 Class LT-P (1) $100.00 P Class LT-R (4) (4) N/A Class LTUT-R (5) (5) N/AR

Lower-Tier REMIC. The Lower Lower-Tier REMIC shall issue the following interests, and each such interest, other than the Class LT-R Interest, is hereby designated as a regular interest in the Lower Lower-Tier REMIC. The Class LT-R Interest is hereby designated as the sole class of residual interest in the Lower Lower-Tier REMIC and shall be represented by the Class R-II R Certificates. Lower Tier Corresponding REMIC Lower Tier REMIC REMIC Interest Initial Lower Tier Corresponding Upper Tier REMIC Class Designation Interest Rate REMIC Principal Amount REMIC Regular Interest ----------------- -------------- ---------------------------------- ---------------- ------------------------------------------------------------------------------------------------------------------------------------ Class LT-A-1 A-1A (1) 1/2 1/4 Corresponding Upper Tier REMIC A-1 Regular Interest A-1A initial Class Principal Balance Class LT-A-2 A-1B (1) 1/2 1/4 Corresponding Upper Tier REMIC A-2 egular Regular Interest A-1B initial lass Class Principal Balance Class LT-A-3 A-2A (1) 1/2 1/4 Corresponding Upper Tier REMIC A-3 Regular Interest A-2A initial Class Principal Balance Class LT-A-2B (1) 1/4 Corresponding Upper Tier REMIC Regular Interest A-2B initial Class Principal Balance Class LT-A-2C (1) 1/4 Corresponding Upper Tier REMIC Regular Interest A-2C initial Class Principal Balance Class LT-M-1 (1) 1/2 1/4 Corresponding Upper Tier REMIC M-1 Regular Interest M-1 initial Class Principal Balance Class LT-M-2 (1) 1/2 1/4 Corresponding Upper Tier REMIC M-2 Regular Interest M-2 initial Class Principal Balance Class LT-M-3 (1) 1/2 1/4 Corresponding Upper Tier REMIC M-3 Regular Interest initial Class Principal Balance Class LT-M-4 (1) 1/2 Corresponding Upper Tier REMIC M-4 Regular Interest initial Class Principal Balance Class LT-M-5 (1) 1/2 Corresponding Upper Tier REMIC M-5 Regular Interest M-3 initial Class Principal Balance Class LT-B-1 (1) 1/2 1/4 Corresponding Upper Tier REMIC B-1 Regular Interest B-1 initial Class Principal Balance Class LT-B-2 (1) 1/2 1/4 Corresponding Upper Tier REMIC B-2 Regular Interest B-2 initial Class Principal Balance Class LT-B-3 (1) 1/2 1/4 Corresponding Upper Tier REMIC B-3 Regular Interest B-3 initial Class Principal Balance Class LT-B-4 (1) 1/2 1/4 Corresponding Upper Tier REMIC B-4 Regular Interest B-4 initial Class Principal Balance Class LT-Accrual (1) 1/2 1/4 Pool Stated Principal Balance plus 1/4 N/A Subordinated Amount Class LT- (1) 0.01% initial Group Subordinate Amount of the N/A Group I(SUB) Group I Mortgage Loans Class LT- (2) 0.01% initial aggregate Stated Principal Balance N/A plus Group I of the Group I Mortgage Loans Class LT- (1) 0.01% initial Group Subordinate Amount of the N/A Group II(SUB) Group II Mortgage Loans Class LT- (3) 0.01% initial aggregate Stated Principal Balance N/A Group II of the Group II Mortgage Loans Class LT-XX (1) 1/2 Subordinated Amount initial aggregate Stated Principal N/A Balance of the Mortgage Loans, less aggregate Initial Lower Tier REMIC Principal Amounts of Class LT-Group I(SUB), Class LT-Group I, Class LT-Group II(SUB) and Class LT-Group II Interests Class LT-IO (4) (4) N/A Class LT-R (5) (5) N/A

Lower-Tier REMIC. The Lower Tier REMIC shall issue the following interests, and each such interest, other than the Class LT-R Interest, is hereby designated as a regular interest in the Lower Tier REMIC. The Class LT-R Interest is hereby designated as the sole class of residual interest in the Lower Tier REMIC and shall be represented by the Class R-II Certificates. Corresponding Lower Tier Corresponding Upper Tier Lower Tier REMIC REMIC Interest Initial Lower Tier Upper Tier REMIC Regular Class Designation Interest Rate REMIC Principal Amount Regular Interest ----------------- ------------------- -------------- ---------------------------------- ---------------- ------------------------------ -------------- Class LT-A-1 (1) 1/2 1/4 Corresponding Upper Tier A-1 REMIC A-1 Regular Interest initial Class Principal Balance Class LT-A-2 A-2A (1) 1/2 1/4 Corresponding Upper Tier A-2A REMIC A-2 egular Regular Interest initial lass Class Principal Balance Class LT-A-3 A-2B (1) 1/2 1/4 Corresponding Upper Tier A-2B REMIC A-3 Regular Interest initial Class Principal Balance Class LT-A-2C (1) 1/4 Corresponding Upper Tier A-2C REMIC Regular Interest initial Class Principal Balance Class LT-A-2D (1) 1/4 Corresponding Upper Tier A-2D REMIC Regular Interest initial Class Principal Balance Class LT-M-1 (1) 1/2 1/4 Corresponding Upper Tier M-1 REMIC M-1 Regular Interest initial Class Principal Balance Class LT-M-2 (1) 1/2 1/4 Corresponding Upper Tier M-2 REMIC M-2 Regular Interest initial Class Principal Balance Class LT-M-3 (1) 1/2 1/4 Corresponding Upper Tier M-3 REMIC M-3 Regular Interest initial Class Principal Balance Class LT-M-4 (1) 1/2 1/4 Corresponding Upper Tier M-4 REMIC M-4 Regular Interest initial Class Principal Balance Class LT-M-5 (1) 1/2 1/4 Corresponding Upper Tier M-5 REMIC M-5 Regular Interest initial Class Principal Balance Class LT-M-6 (1) 1/4 Corresponding Upper Tier M-6 REMIC Regular Interest initial Class Principal Balance Class LT-B-1 (1) 1/2 1/4 Corresponding Upper Tier B-1 REMIC B-1 Regular Interest initial Class Principal Balance Class LT-B-2 (1) 1/2 1/4 Corresponding Upper Tier B-2 REMIC B-2 Regular Interest initial Class Principal Balance Class LT-B-3 (1) 1/2 1/4 Corresponding Upper Tier B-3 REMIC B-3 Regular Interest initial Class Principal Balance Class LT-B-4 (1) 1/2 Corresponding Upper Tier REMIC B-4 Regular Interest initial Class Principal Balance Class LT-Accrual (1) 1/2 1/4 Pool Stated Principal Balance N/A Balance plus 1/2 1/4 Subordinated Amount Class LT- (1) 0.01% initial Group N/A Group I(SUB) Subordinated Amount of the Group I Mortgage Loans (6) Class LT- (2) 0.01% initial aggregate N/A Group I Stated Principal Balance of the Group I Mortgage Loans (6) Class LT- (1) 0.01% initial Group N/A Group II(SUB) Subordinated Amount of the Group II Mortgage Loans (6) Class LT- (3) 0.01% initial aggregate N/A Group II Stated Principal Balance of the Group II Mortgage Loans (6) Class LT-XX (1) 1/2 initial Pool Stated N/A Principal Balance, less aggregate Initial Lower Tier REMIC Principal Amounts of Class LT-Group I(SUB), Class LT-Group I, Class LT-Group II(SUB) and Class LT-Group II Interests Class LT-IO (4) (4) N/A Class LT-R (5) (5) N/A

Lower-Tier REMIC. The Lower Tier REMIC shall issue the following interests, and each such interest, other than the Class LT-R Interest, is hereby designated as a regular interest in the Lower Tier REMIC. The Class LT-R Interest is hereby designated as the sole class of residual interest in the Lower Tier REMIC and shall be represented by the Class R-II Certificates. Corresponding Lower Tier Corresponding Upper Tier Lower Tier REMIC REMIC Interest Initial Lower Tier Upper Tier REMIC Regular Class Designation Interest Rate REMIC Principal Amount Regular Interest ----------------- -------------- ---------------------------------- ---------------- ------------- ---------------------------- ------------- Class LT-A-1 (1) 1/2 Corresponding Upper Tier A-1 REMIC A-1 Regular Interest initial Class Principal Balance Class LT-A-2 (1) 1/2 Corresponding Upper Tier A-2 REMIC A-2 egular Regular Interest initial lass Class Principal Balance Class LT-A-3 (1) 1/2 Corresponding Upper Tier A-3 REMIC A-3 Regular Interest initial Class Principal Balance Class LT-M-1 (1) 1/2 Corresponding Upper Tier M-1 REMIC M-1 Regular Interest initial Class Principal Balance Class LT-M-2 (1) 1/2 Corresponding Upper Tier M-2 REMIC M-2 Regular Interest initial Class Principal Balance Class LT-M-3 (1) 1/2 Corresponding Upper Tier M-3 REMIC M-3 Regular Interest initial Class Principal Balance Class LT-M-4 (1) 1/2 Corresponding Upper Tier REMIC M-4 Regular Interest initial Class Principal Balance Class LT-M-5 (1) 1/2 Corresponding Upper Tier REMIC M-5 Regular Interest initial Class Principal Balance Class LT-B-1 (1) 1/2 Corresponding Upper Tier B-1 REMIC B-1 Regular Interest initial Class Principal Balance Class LT-B-2 (1) 1/2 Corresponding Upper Tier B-2 REMIC B-2 Regular Interest initial Class Principal Balance Class LT-B-3 (1) 1/2 Corresponding Upper Tier B-3 REMIC B-3 Regular Interest initial Class Principal Balance Class LT-B-4 (1) 1/2 Corresponding Upper Tier B-4 REMIC B-4 Regular Interest initial Class Principal Balance Class LT-B-5 (1) 1/2 Corresponding Upper Tier B-5 REMIC Regular Interest initial Class Principal Balance Class LT-Accrual (1) 1/2 Pool Stated Principal Balance N/A Balance plus 1/2 Subordinated Amount Class LT-IO (42) (42) N/A Class LT-R (53) (53) N/A

Lower-Tier REMIC. The Lower Lower-Tier REMIC shall issue the following interests, and each such interest, other than the Class LT-R Interest, is hereby designated as a regular interest in the Lower Lower-Tier REMIC. The Class LT-R Interest is hereby designated as the sole class of residual interest in the Lower Lower-Tier REMIC and shall be represented by the Class R-II R Certificates. Lower Tier Corresponding Lower Tier REMIC REMIC Interest Initial Lower Tier Upper Tier REMIC Class Designation Rate REMIC Principal Amount Regular Interest ----------------- -------------- ---------------------------------- ------------------------------- ---------------- Class LT-A-1 A-1A (1) 1/2 1/4 Corresponding Upper Tier A-1A REMIC A-1 Regular Interest initial Class Principal Balance Class LT-A-2 A-1B (1) 1/2 1/4 Corresponding Upper Tier A-1B REMIC A-2 egular Regular Interest initial lass Class Principal Balance Class LT-A-3 A-2A (1) 1/2 1/4 Corresponding Upper Tier A-2A REMIC A-3 Regular Interest initial Class Principal Balance Class LT-A-2B (1) 1/4 Corresponding Upper Tier A-2B REMIC Regular Interest initial Class Principal Balance Class LT-A-2C (1) 1/4 Corresponding Upper Tier A-2C REMIC Regular Interest initial Class Principal Balance Class LT-M-1 (1) 1/2 1/4 Corresponding Upper Tier M-1 REMIC M-1 Regular Interest initial Class Principal Balance Class LT-M-2 (1) 1/2 1/4 Corresponding Upper Tier M-2 REMIC M-2 Regular Interest initial Class Principal Balance Class LT-M-3 (1) 1/2 1/4 Corresponding Upper Tier M-3 REMIC M-3 Regular Interest initial Class Principal Balance Class LT-M-4 (1) 1/2 Corresponding Upper Tier REMIC M-4 Regular Interest initial Class Principal Balance Class LT-M-5 (1) 1/2 Corresponding Upper Tier REMIC M-5 Regular Interest initial Class Principal Balance Class LT-B-1 (1) 1/2 1/4 Corresponding Upper Tier B-1 REMIC B-1 Regular Interest initial Class Principal Balance Class LT-B-2 (1) 1/2 1/4 Corresponding Upper Tier B-2 REMIC B-2 Regular Interest initial Class Principal Balance Class LT-B-3 (1) 1/2 1/4 Corresponding Upper Tier REMIC B-3 Regular Interest initial Class Principal Balance Class LT-B-4 (1) 1/2 1/4 Corresponding Upper Tier B-4 REMIC B-4 Regular Interest initial Class Principal Balance Lower Tier Corresponding Lower Tier REMIC REMIC Interest Initial Lower Tier Upper Tier REMIC Class LT-Accrual (1) 1/2 Pool Stated Designation Rate REMIC Principal Balance N/A plus 1/2 Subordinated Amount Class LT-IO (4) (4) N/A Class LT-R (5) (5) N/ARegular Interest ----------------- -------------- ------------------------------- ----------------

Lower-Tier REMIC. The Lower Lower-Tier REMIC shall issue the following interests, and each such interest, other than the Class LT-R Interest, is hereby designated as a regular interest in the Lower Lower-Tier REMIC. The Class LT-R Interest is hereby designated as the sole class of residual interest in the Lower Lower-Tier REMIC and shall be represented by the Class R-II R Certificates. Lower Corresponding Upper-Tier Corresponding Lower Lower-Tier REMIC Lower-Tier Initial Lower-Tier Principal REMIC Interest Initial Lower Tier Upper Tier REMIC Class Designation Rate REMIC Principal Amount Regular Interest ----------------- -------------- ---------------------------------- ---------------- Interest Rate Amount Interest ------------------ --------------- ---------------------------- --------------- Class LT-A-1 (1) 1/2 initial Class Certificate A-1 Balance of Corresponding Upper Upper-Tier REMIC A-1 Regular Interest initial Class Principal Balance Class LT-A-2 (1) 1/2 initial Class Certificate A-2 Balance of Corresponding Upper Upper-Tier REMIC A-2 egular Regular Interest initial lass Principal Balance Class LT-A-3 (1) 1/2 initial Class Certificate A-3 Balance of Corresponding Upper Upper-Tier REMIC A-3 Regular Interest Class LT-A-4 (1) 1/2 initial Class Principal Certificate A-4 Balance of Corresponding Upper-Tier Regular Interest Class LT-M-1 (1) 1/2 initial Class Certificate M-1 Balance of Corresponding Upper Upper-Tier REMIC M-1 Regular Interest initial Class Principal Balance Class LT-M-2 (1) 1/2 initial Class Certificate M-2 Balance of Corresponding Upper Upper-Tier REMIC M-2 Regular Interest initial Class Principal Balance Class LT-M-3 (1) 1/2 initial Class Certificate M-3 Balance of Corresponding Upper Upper-Tier REMIC M-3 Regular Interest initial Class Principal Balance Class LT-M-4 (1) 1/2 initial Class Certificate M-4 Balance of Corresponding Upper Upper-Tier REMIC M-4 Regular Interest initial Class Principal Balance Class LT-M-5 (1) 1/2 initial Class Certificate M-5 Balance of Corresponding Upper Upper-Tier REMIC M-5 Regular Interest Class LT-M-6 (1) 1/2 initial Class Principal Certificate M-6 Balance of Corresponding Upper-Tier Regular Interest Class LT-B-1 (1) 1/2 initial Class Certificate B-1 Balance of Corresponding Upper Upper-Tier REMIC B-1 Regular Interest initial Class Principal Balance Class LT-B-2 (1) 1/2 initial Class Certificate B-2 Balance of Corresponding Upper Upper-Tier REMIC B-2 Regular Interest initial Class Principal Balance Class LT-B-3 (1) 1/2 initial Class Certificate B-3 Balance of Corresponding Upper Upper-Tier Regular Interest Corresponding Upper-Tier Lower-Tier REMIC B-3 Lower-Tier Initial Lower-Tier Principal REMIC Regular Interest initial Class Principal Balance Class LT-B-4 (1) 1/2 Corresponding Upper Tier REMIC B-4 Regular Interest initial Class Principal Balance Rate Amount Interest ------------------ --------------- ---------------------------- --------------- Class LT-Accrual (1) 1/2 Pool Stated Principal Balance N/A Balance plus 1/2 Subordinated Amount Class LT-IO (42) (42) N/A Class LT-R (53) (53) N/AA --------------------------

Lower-Tier REMIC. The Lower Lower-Tier REMIC shall issue the following interests, and each such interest, other than the Class LT-R Interest, is hereby designated as a regular interest in the Lower Lower-Tier REMIC. The Class LT-R Interest is hereby designated as the sole class of residual interest in the Lower Lower-Tier REMIC and shall be represented by the Class R-II R Certificates. Corresponding Lower Tier Corresponding Upper Tier Lower Tier REMIC REMIC Interest Initial Lower Tier Upper Tier REMIC Regular Class Designation Interest Rate REMIC Principal Amount Regular Interest ----------------- ------------- ---------------------------- -------------- ---------------------------------- ---------------- Class LT-A-1 (1) 1/2 1/4 Corresponding Upper Tier A-1 REMIC A-1 Regular Interest initial Class Principal Balance Class LT-A-2 A-2A (1) 1/2 1/4 Corresponding Upper Tier A-2A REMIC A-2 egular Regular Interest initial lass Class Principal Balance Class LT-A-3 A-2B (1) 1/2 1/4 Corresponding Upper Tier A-2B REMIC A-3 Regular Interest initial Class Principal Balance Class LT-A-2C (1) 1/4 Corresponding Upper Tier A-2C REMIC Regular Interest initial Class Principal Balance Class LT-M-1 (1) 1/2 1/4 Corresponding Upper Tier M-1 REMIC M-1 Regular Interest initial Class Principal Balance Class LT-M-2 (1) 1/2 1/4 Corresponding Upper Tier M-2 REMIC M-2 Regular Interest initial Class Principal Balance Class LT-M-3 (1) 1/2 1/4 Corresponding Upper Tier M-3 REMIC M-3 Regular Interest initial Class Principal Balance Class LT-M-4 (1) 1/2 1/4 Corresponding Upper Tier M-4 REMIC M-4 Regular Interest initial Class Principal Balance Class LT-M-5 (1) 1/2 1/4 Corresponding Upper Tier M-5 REMIC M-5 Regular Interest initial Class Principal Balance Class LT-M-6 (1) 1/4 Corresponding Upper Tier M-6 REMIC Regular Interest initial Class Principal Balance Class LT-B-1 (1) 1/2 1/4 Corresponding Upper Tier B-1 REMIC B-1 Regular Interest initial Class Principal Balance Class LT-B-2 (1) 1/2 1/4 Corresponding Upper Tier B-2 REMIC B-2 Regular Interest initial Class Principal Balance Class LT-B-3 (1) 1/2 1/4 Corresponding Upper Tier B-3 REMIC B-3 Regular Interest initial Class Principal Balance Class LT-B-4 (1) 1/2 Corresponding Upper Tier REMIC B-4 Regular Interest initial Class Principal Balance Class LT-Accrual (1) 1/2 1/4 Pool Stated Principal Balance N/A Balance plus 1/2 1/4 Subordinated Amount Class LT- (1) 0.01% initial Group N/A Group I(SUB) Subordinate Amount of the Group I Mortgage Loans (6) Class LT- (2) 0.01% initial aggregate N/A Group I Stated Principal Balance of the Group I Mortgage Loans (6) Class LT- (1) 0.01% initial Group N/A Group II(SUB) Subordinate Amount of the Group II Mortgage Loans (6) Class LT- (3) 0.01% initial aggregate N/A Group II Stated Principal Balance of the Group II Mortgage Loans (6) Class LT-XX (1) 1/2 initial aggregate Stated N/A Principal Balance of the Mortgage Loans, less aggregate Initial Lower Tier REMIC Principal Amounts of Class LT-Group I(SUB), Class LT-Group I, Class LT-Group II(SUB) and Class LT-Group II Interests Class LT-IO (4) (4) N/A Class LT-R (5) (5) N/AA ------------

Lower-Tier REMIC. The Lower Tier REMIC will hold as assets the Mortgage Loans. The Lower Tier REMIC shall issue the following interests, and each such interest, other than the Class LT-A-R Interest, is hereby designated as a regular interest in the Lower Tier REMICREMIC (the "Lower Tier REMIC Regular Interests"). The Class LT-A-R Interest is hereby designated as the sole class Class of residual interest in the Lower Tier REMIC and shall be represented by the Class RA-II R Certificates. Lower Tier Corresponding Lower Tier REMIC REMIC Interest Initial Lower Tier Principal Upper Tier REMIC Class Designation Rate REMIC Principal Amount (4) Regular Interest ----------------- -------------- ---------------------------------- --------------------------------- ---------------- Class Class-LT-A-1 (1) 1/2 1% Corresponding Upper Tier REMIC A-1 Regular Interest initial Class Principal Certificate Balance Class Class-LT-A-2 (1) 1/2 1% Corresponding Upper Tier REMIC A-2 egular Interest initial lass Principal Class Certificate Balance Class Class-LT-A-3 (1) 1/2 1% Corresponding Upper Tier REMIC A-3 Regular Interest initial Class Principal Certificate Balance Class LTClass-M-1 (1) 1/2 Corresponding Upper Tier REMIC M-1 Regular Interest initial Class Principal Balance Class LT-M-2 (1) 1/2 Corresponding Upper Tier REMIC M-2 Regular Interest initial Class Principal Balance Class LT-M-3 (1) 1/2 Corresponding Upper Tier REMIC M-3 Regular Interest initial Class Principal Balance Class LT-M-4 (1) 1/2 Corresponding Upper Tier REMIC M-4 Regular Interest initial Class Principal Balance Class LT-M-5 (1) 1/2 Corresponding Upper Tier REMIC M-5 Regular Interest initial Class Principal Balance Class LT-B-1 (1) 1/2 1% Corresponding Upper Tier REMIC B-1 Regular Interest initial Class Principal Certificate Balance Class Class-LT-B-2 (1) 1/2 1% Corresponding Upper Tier REMIC B-2 Regular Interest initial Class Principal Certificate Balance Class Class-LT-B-3 (1) 1/2 1% Corresponding Upper Tier REMIC B-3 Regular Interest initial Class Principal Certificate Balance Class Class-LT-B-4 (1) 1/2 1% Corresponding Upper Tier REMIC B-4 Regular Interest initial Class Principal Certificate Balance Class Class-LT-Accrual B-5 (1) 1/2 Pool Stated Principal 1% Corresponding Upper Tier REMIC B-5 Interest initial Class Certificate Balance N/A plus 1/2 Subordinated Amount Class Class-LT-IO B-6 (41) 1% Corresponding Upper Tier REMIC B-6 Interest initial Class Certificate Balance Class-LT-UTAR (1) 1% Corresponding Upper Tier REMIC UT-AR Interest initial Class Certificate Balance Class-LT-Accrual-1 (1) (42) N/A Class Class-LT-Accrual-2 (1) (2) N/A Class-LT-A-R (53) (53) N/AA _________________________

Lower-Tier REMIC. The Lower Tier REMIC shall issue the following interests, and each such interest, other than the Class LT-R Interest, is hereby designated as a regular interest in the Lower Tier REMIC. The Class LT-R Interest is hereby designated as the sole class of residual interest in the Lower Tier REMIC and shall be represented by the Class R-II Certificates. Lower Tier Corresponding Upper Lower Tier REMIC Lower Tier REMIC Interest Initial Lower Tier Upper Tier REMIC Regular Class Designation Interest Rate REMIC Principal Amount Regular Interest ----------------- -------------- ---------------------------------- ---------------- -------------------------- ---------------------- --------------------------------------------- -------------------- Class LT-A-1 (1) 1/2 Corresponding Upper Tier REMIC Regular A-1 Regular Interest initial Class Principal Balance Class LT-A-2 (1) 1/2 Corresponding Upper Tier REMIC Regular A-2 egular Interest initial lass Class Principal Balance Class LT-A-3 (1) 1/2 Corresponding Upper Tier REMIC Regular A-3 Regular Interest initial Class Principal Balance Class LT-M-1 (1) 1/2 Corresponding Upper Tier REMIC Regular M-1 Regular Interest initial Class Principal Balance Class LT-M-2 (1) 1/2 Corresponding Upper Tier REMIC Regular M-2 Regular Interest initial Class Principal Balance Class LT-M-3 (1) 1/2 Corresponding Upper Tier REMIC Regular M-3 Regular Interest initial Class Principal Balance Class LT-M-4 (1) 1/2 Corresponding Upper Tier REMIC M-4 Regular Interest initial Class Principal Balance Class LT-M-5 (1) 1/2 Corresponding Upper Tier REMIC M-5 Regular Interest initial Class Principal Balance Class LT-B-1 (1) 1/2 Corresponding Upper Tier REMIC Regular B-1 Regular Interest initial Class Principal Balance Class LT-B-2 (1) 1/2 Corresponding Upper Tier REMIC Regular B-2 Regular Interest initial Class Principal Balance Class LT-B-3 (1) 1/2 Corresponding Upper Tier REMIC Regular B-3 Regular Interest initial Class Principal Balance Class LT-B-4 (1) 1/2 Corresponding Upper Tier REMIC Regular B-4 Interest initial Class Principal Balance Class LT-B-5 (1) 1/2 Corresponding Upper Tier REMIC Regular B-5 Interest initial Class Principal Balance Class LT-Accrual (1) 1/2 Pool Stated Principal Balance plus 1/2 N/A plus 1/2 Subordinated Amount Class LT-IO (42) (42) N/A Class LT-R (53) (53) N/A

Lower-Tier REMIC. The Lower Tier REMIC shall issue the following interests, and each such interest, other than the Class LT-R Interest, is hereby designated as a regular interest in the Lower Tier REMIC. The Class LT-R Interest is hereby designated as the sole class of residual interest in the Lower Tier REMIC and shall be represented by the Class R-II R Certificates. Corresponding Lower Tier Corresponding Upper Tier Lower Tier REMIC REMIC Interest Initial Lower Tier Upper Tier REMIC Regular Class Designation Interest Rate REMIC Principal Amount Regular Interest ----------------- ------------------- -------------- ---------------------------------- ---------------- ----------------------------- --------------- Class LT-A-1 (1) 1/2 Corresponding Upper Tier A-1 REMIC A-1 Regular Interest initial Class Principal Balance Class LT-A-2 (1) 1/2 Corresponding Upper Tier A-2 REMIC A-2 egular Interest initial lass Principal Balance Class LT-A-3 (1) 1/2 Corresponding Upper Tier REMIC A-3 Regular Interest initial Class Principal Balance Class LT-M-1 (1) 1/2 Corresponding Upper Tier M-1 REMIC M-1 Regular Interest initial Class Principal Balance Class LT-M-2 (1) 1/2 Corresponding Upper Tier M-2 REMIC M-2 Regular Interest initial Class Principal Balance Class LT-M-3 (1) 1/2 Corresponding Upper Tier M-3 REMIC M-3 Regular Interest initial Class Principal Balance Class LT-M-4 (1) 1/2 Corresponding Upper Tier M-4 REMIC M-4 Regular Interest initial Class Principal Balance Class LT-M-5 (1) 1/2 Corresponding Upper Tier M-5 REMIC M-5 Regular Interest initial Class Principal Balance Class LT-B-1 M-6 (1) 1/2 Corresponding Upper Tier M-6 REMIC B-1 Regular Interest initial Class Principal Balance Class LT-B-2 M-7 (1) 1/2 Corresponding Upper Tier M-7 REMIC B-2 Regular Interest initial Class Principal Balance Class LT-B-3 M-8 (1) 1/2 Corresponding Upper Tier M-8 REMIC B-3 Regular Interest initial Class Principal Balance Class LT-B-4 (1) 1/2 Corresponding Upper Tier REMIC B-4 Regular Interest initial Class Principal Balance Class LT-Accrual (1) 1/2 Pool Stated Principal Balance N/A Balance plus 1/2 Subordinated Amount Class LT-IO (42) (42) N/A Class LT-R (53) (53) N/A

Lower-Tier REMIC. The Lower Tier REMIC shall issue the following interests, and each such interest, other than the Class LT-R Interest, is hereby designated as a regular interest in the Lower Tier REMIC. The Class LT-R Interest is hereby designated as the sole class of residual interest in the Lower Tier REMIC and shall be represented by the Class R-II R Certificates. Lower Tier Corresponding Lower Tier REMIC REMIC Interest Initial Lower Tier Upper Tier REMIC REMIC Initial Lower Tier REMIC Regular Class Designation Interest Rate REMIC Principal Amount Regular Interest ----------------- -------------- ---------------------------------- --------------------- --------------- --------------------------------- ---------------- Class LT-A-1 A-1A (1) 1/2 1/4 Corresponding Upper Tier A-1A REMIC A-1 Regular Interest initial Class Principal Balance Class LT-A-1B (1) 1/4 Corresponding Upper Tier A-1B REMIC Regular Interest initial Class Principal Balance Class LT-A-2 (1) 1/2 1/4 Corresponding Upper Tier A-2 REMIC A-2 egular Regular Interest initial lass Class Principal Balance Class LT-A-3 A-3A (1) 1/2 1/4 Corresponding Upper Tier A-3A REMIC A-3 Regular Interest initial Class Principal Balance Class LT-A-3B (1) 1/4 Corresponding Upper Tier A-3B REMIC Regular Interest initial Class Principal Balance Class LT-A-3C (1) 1/4 Corresponding Upper Tier A-3C REMIC Regular Interest initial Class Principal Balance Class LT-M-1 (1) 1/2 1/4 Corresponding Upper Tier M-1 REMIC M-1 Regular Interest initial Class Principal Balance Class LT-M-2 (1) 1/2 1/4 Corresponding Upper Tier M-2 REMIC M-2 Regular Interest initial Class Principal Balance Class LT-M-3 (1) 1/2 1/4 Corresponding Upper Tier M-3 REMIC M-3 Regular Interest initial Class Principal Balance Class LT-M-4 (1) 1/2 Corresponding Upper Tier REMIC M-4 Regular Interest initial Class Principal Balance Class LT-M-5 (1) 1/2 Corresponding Upper Tier REMIC M-5 Regular Interest initial Class Principal Balance Class LT-B-1 (1) 1/2 1/4 Corresponding Upper Tier B-1 REMIC B-1 Regular Interest initial Class Principal Balance Class LT-B-2 (1) 1/2 1/4 Corresponding Upper Tier B-2 REMIC B-2 Regular Interest initial Class Principal Balance Class LT-B-3 (1) 1/2 1/4 Corresponding Upper Tier B-3 REMIC B-3 Regular Interest initial Class Principal Balance Class LT-B-4 (1) 1/2 1/4 Corresponding Upper Tier B-4 REMIC B-4 Regular Interest initial Class Principal Balance Class LT-Accrual (1) 1/2 1/4 Pool Stated Principal Balance N/A plus 1/2 1/4 Subordinated Amount Class LT- (1) 0.01% initial Group Subordinate N/A Group I(SUB) Amount of the Group I Mortgage Loans (7) Class LT- (2) 0.01% initial aggregate Stated N/A Group I Principal Balance of the Group I Mortgage Loans (7) Class LT- (1) 0.01% initial Group Subordinate N/A Group II(SUB) Amount of the Group II Mortgage Loans (7) Class LT- (3) 0.01% initial aggregate Stated N/A Group II Principal Balance of the Group II Mortgage Loans(7) Class LT- (1) 0.01% initial Group Subordinate N/A Group III(SUB) Amount of the Group III Mortgage Loans (7) Class LT- (4) 0.01% initial aggregate Stated N/A Group III Principal Balance of the Group III Mortgage Loans(7) Class LT-XX (1) 1/2 initial aggregate Stated N/A Principal Balance of the Mortgage Loans, less aggregate Initial Lower Tier REMIC Principal Amounts of Class LT-Group I(SUB), Class LT-Group I, Class LT-Group II(SUB), Class LT-Group II, Class LT-Group III(SUB), and Class LT-Group III, Interests Class LT-IO (45) (45) N/A Class LT-R (56) (56) N/AA -------------

Lower-Tier REMIC. The Lower Tier REMIC shall issue the following interests, and each such interest, other than the Class LT-R Interest, is hereby designated as a regular interest in the Lower Tier REMIC. The Class LT-R Interest is hereby designated as the sole class of residual interest in the Lower Tier REMIC and shall be represented by the Class R-II Certificates. Corresponding Lower Tier Corresponding Upper Tier Lower Tier REMIC REMIC Interest Initial Lower Tier Upper Tier REMIC Regular Class Designation Interest Rate REMIC Principal Amount Regular Interest ----------------- ------------------- -------------- ---------------------------------- ---------------- ------------------------------ -------------- Class LT-A-1 (1) 1/2 1/4 Corresponding Upper Tier A-1 REMIC A-1 Regular Interest initial Class Principal Balance Class LT-A-2 A-2A (1) 1/2 1/4 Corresponding Upper Tier A-2A REMIC A-2 egular Regular Interest initial lass Class Principal Balance Class LT-A-3 A-2B (1) 1/2 1/4 Corresponding Upper Tier A-2B REMIC A-3 Regular Interest initial Class Principal Balance Class LT-A-2C (1) 1/4 Corresponding Upper Tier A-2C REMIC Regular Interest initial Class Principal Balance Class LT-A-2D (1) 1/4 Corresponding Upper Tier A-2D REMIC Regular Interest initial Class Principal Balance Class LT-M-1 (1) 1/2 1/4 Corresponding Upper Tier M-1 REMIC M-1 Regular Interest initial Class Principal Balance Class LT-M-2 (1) 1/2 1/4 Corresponding Upper Tier M-2 REMIC M-2 Regular Interest initial Class Principal Balance Class LT-M-3 (1) 1/2 1/4 Corresponding Upper Tier M-3 REMIC M-3 Regular Interest initial Class Principal Balance Class LT-M-4 (1) 1/2 1/4 Corresponding Upper Tier M-4 REMIC M-4 Regular Interest initial Class Principal Balance Class LT-M-5 (1) 1/2 1/4 Corresponding Upper Tier M-5 REMIC M-5 Regular Interest initial Class Principal Balance Class LT-B-1 (1) 1/2 1/4 Corresponding Upper Tier B-1 REMIC B-1 Regular Interest initial Class Principal Balance Class LT-B-2 (1) 1/2 1/4 Corresponding Upper Tier B-2 REMIC B-2 Regular Interest initial Class Principal Balance Class LT-B-3 (1) 1/2 1/4 Corresponding Upper Tier B-3 REMIC B-3 Regular Interest initial Class Principal Balance Class LT-B-4 (1) 1/2 Corresponding Upper Tier REMIC B-4 Regular Interest initial Class Principal Balance Class LT-Accrual (1) 1/2 1/4 Pool Stated Principal Balance N/A Balance plus 1/2 Subordinated Amount Class LT- (1) 0.01% initial Group N/A Group I(SUB) Subordinate Amount of the Group I Mortgage Loans (6) Class LT- (2) 0.01% initial aggregate N/A Group I Stated Principal Balance of the Group I Mortgage Loans (6) Class LT- (1) 0.01% initial Group N/A Group II(SUB) Subordinate Amount of the Group II Mortgage Loans (6) Class LT- (3) 0.01% initial aggregate N/A Group II Stated Principal Balance of the Group II Mortgage Loans (6) Class LT-XX (1) 1/2 initial aggregate Stated N/A Principal Balance of the Mortgage Loans, less aggregate Initial Lower Tier REMIC Principal Amounts of Class LT-Group I(SUB), Class LT-Group I, Class LT-Group II(SUB) and Class LT-Group II Interests Class LT-IO (4) (4) N/A Class LT-R (5) (5) N/A

Lower-Tier REMIC. The Lower Tier REMIC shall issue the following interests, and each such interest, other than the Class LT-R Interest, is hereby designated as a regular interest in the Lower Tier REMIC. The Class LT-R Interest is hereby designated as the sole class Class of residual interest in the Lower Tier REMIC and shall be represented by the Class R-II R Certificates. Lower Tier Initial Corresponding Lower Tier REMIC REMIC Interest Initial Lower Tier Lower Tier Upper Tier REMIC REMIC REMIC REMIC Class Designation Interest Rate REMIC Principal Amount Regular Interest ----------------- -------------- ---------------------------------- ---------------- ------------------------------------------ ---------------- Class LT-A-1 (1) 1/2 Corresponding Upper Tier REMIC Regular A-1 Regular Interest initial Class Principal Certificate Balance Class LT-A-2 (1) 1/2 Corresponding Upper Tier REMIC Regular A-2 egular Interest initial lass Principal Class Certificate Balance Class LT-A-3 (1) 1/2 Corresponding Upper Tier REMIC Regular A-3 Regular Interest initial Class Principal Certificate Balance Class LT-M-1 (1) 1/2 Corresponding Upper Tier REMIC Regular M-1 Regular Interest initial Class Principal Certificate Balance Class LT-M-2 (1) 1/2 Corresponding Upper Tier REMIC Regular M-2 Regular Interest initial Class Principal Certificate Balance Class LT-M-3 (1) 1/2 Corresponding Upper Tier REMIC Regular M-3 Regular Interest initial Class Principal Certificate Balance Class LT-M-4 (1) 1/2 Corresponding Upper Tier REMIC Regular M-4 Regular Interest initial Class Principal Certificate Balance Class LT-M-5 (1) 1/2 Corresponding Upper Tier REMIC Regular M-5 Regular Interest initial Class Principal Balance Class LT-B-1 (1) 1/2 Corresponding Upper Tier REMIC B-1 Regular Interest initial Class Principal Balance Class LT-B-2 (1) 1/2 Corresponding Upper Tier REMIC B-2 Regular Interest initial Class Principal Balance Class LT-B-3 (1) 1/2 Corresponding Upper Tier REMIC B-3 Regular Interest initial Class Principal Balance Class LT-B-4 (1) 1/2 Corresponding Upper Tier REMIC B-4 Regular Interest initial Class Principal Certificate Balance Class LT-Accrual (1) 1/2 Pool Stated Principal Balance plus 1/2 N/A plus 1/2 Subordinated Amount Class LT-IO (42) (42) N/A Class LT-R (53) (53) N/AA ------------