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POOLING AND SERVICING AGREEMENT

Pooling and Servicing Agreement

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Title: POOLING AND SERVICING AGREEMENT
Governing Law: Delaware     Date: 5/12/2006

POOLING AND SERVICING AGREEMENT, Parties: bcap llc
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                                                                     Exhibit 4.1

================================================================================


                                    BCAP LLC,

                                   Depositor,



                 _____________________________________________,

                                    Servicer,


                 _____________________________________________,

                                Responsible Party


                 _____________________________________________,

                            Loan Performance Advisor,


                 _____________________________________________,

                                     Trustee


                                       and


                 _____________________________________________,

                     Securities Administrator and Custodian



                ------------------------------------------------
                         POOLING AND SERVICING AGREEMENT

                          Dated as of _____________, 200_
                ------------------------------------------------





                             BCAP LLC TRUST 200_-___


                       MORTGAGE PASS-THROUGH CERTIFICATES,
                                  SERIES 200_-___

================================================================================
<PAGE>


                                TABLE OF CONTENTS

                                                                            Page


                                     ARTICLE I

                                   DEFINITIONS


                                   ARTICLE II

                          CONVEYANCE OF MORTGAGE LOANS;
                         REPRESENTATIONS AND WARRANTIES

Section 2.01     Conveyance of Mortgage Loans..................................63
Section 2.02     Acceptance by the Trustee of the Mortgage Loans...............66
Section 2.03     Representations, Warranties and Covenants of the
                  Responsible Party and the Servicer; Remedies for
                  Breaches of Representations and Warranties with
                  Respect to the Mortgage Loans...............................67
Section 2.04     [Reserved]....................................................70
Section 2.05     Execution and Delivery of Certificates........................70
Section 2.06     REMIC Matters.................................................70
Section 2.07     Representations and Warranties of the Depositor...............71


                                    ARTICLE III

                          ADMINISTRATION AND SERVICING
                                OF MORTGAGE LOANS

Section 3.01     Servicer to Service Mortgage Loans............................72
Section 3.02     Subservicing Agreements between the Servicer and
                  Subservicers................................................74
Section 3.03     Successor Subservicers........................................75
Section 3.04     Liability of the Servicer.....................................76
Section 3.05     No Contractual Relationship between Subservicers
                  and the Trustee.............................................76
Section 3.06     Assumption or Termination of Subservicing Agreements
                   by Trustee..................................................76
Section 3.07     Collection of Certain Mortgage Loan Payments..................77
Section 3.08     Subservicing Accounts.........................................79
Section 3.09     Collection of Taxes, Assessments and Similar Items;
                  Escrow Accounts.............................................79
Section 3.10     Collection Account............................................80
Section 3.11     Withdrawals from the Collection Account.......................82
Section 3.12     Investment of Funds in the Collection Account, Escrow
                  Accounts and the Distribution Account.......................83
Section 3.13     Maintenance of Hazard Insurance and Errors and
                   Omissions and Fidelity Coverage.............................84
Section 3.14     Enforcement of Due-On-Sale Clauses; Assumption
                  Agreements..................................................85
Section 3.15     Realization upon Defaulted Mortgage Loans.....................86
Section 3.16     Release of Mortgage Files.....................................88


                                      -i-

<PAGE>

Section 3.17     Title, Conservation and Disposition of REO
                  Property....................................................89
Section 3.18     Notification of Adjustments...................................90
Section 3.19     Access to Certain Documentation and Information
                  Regarding the Mortgage Loans................................91
Section 3.20     Documents, Records and Funds in Possession of the
                  Servicer to Be Held for the Securities Administrator........91
Section 3.21     Servicing Compensation........................................91
Section 3.22     Annual Statement as to Compliance.............................92
Section 3.23     Annual Reports on Assessment of Compliance with
                  Servicing Criteria; Annual Independent Public
                  Accountants' Attestation Report.............................93
Section 3.24     Trustee to Act as Servicer....................................94
Section 3.25     Compensating Interest.........................................95
Section 3.26     Credit Reporting; Gramm-Leach-Bliley Act......................95


                                   ARTICLE IV

                                DISTRIBUTIONS AND
                            ADVANCES BY THE SERVICER

Section 4.01     Advances......................................................95
Section 4.02     Priorities of Distribution....................................97
Section 4.03     Monthly Statements to Certificateholders.....................103
Section 4.04     Certain Matters Relating to the Determination of LIBOR.......108
Section 4.05     Allocation of Applied Realized Loss Amounts..................108
Section 4.06     Swap Account.................................................108


                                    ARTICLE V

                                THE CERTIFICATES

Section 5.01     The Certificates.............................................110
Section 5.02     Certificate Register; Registration of Transfer and
                  Exchange of Certificates...................................111
Section 5.03     Mutilated, Destroyed, Lost or Stolen Certificates............117
Section 5.04     Persons Deemed Owners........................................117
Section 5.05     Access to List of Certificateholders' Names and Addresses....117
Section 5.06     Maintenance of Office or Agency..............................118


                                   ARTICLE VI

                           THE DEPOSITOR, THE SERVICER
                        AND THE LOAN PERFORMANCE ADVISOR

Section 6.01     Respective Liabilities of the Depositor and the Servicer.....118
Section 6.02     Merger or Consolidation of the Depositor or the Servicer.....118
Section 6.03     Limitation on Liability of the Depositor, the
                  Servicer and Others........................................119


                                       -ii-

<PAGE>

Section 6.04     Limitation on Resignation of the Servicer....................120
Section 6.05     Additional Indemnification by the Servicer; Third
                  Party Claims...............................................120
Section 6.06     Duties of the Loan Performance Advisor.......................121
Section 6.07     Loan Performance Advisor's Fees..............................121


                                   ARTICLE VII

                                      DEFAULT

Section 7.01     Events of Default............................................121
Section 7.02     Trustee to Act; Appointment of Successor.....................123
Section 7.03     Notification to Certificateholders...........................125


                                  ARTICLE VIII

                             CONCERNING THE TRUSTEE

Section 8.01     Duties of the Trustee........................................125
Section 8.02     Certain Matters Affecting the Trustee........................126
Section 8.03     Trustee Not Liable for Certificates or Mortgage Loans........127
Section 8.04     Trustee May Own Certificates.................................128
Section 8.05     Trustee's Fees and Expenses..................................128
Section 8.06     Eligibility Requirements for the Trustee.....................129
Section 8.07     Resignation and Removal of the Trustee.......................129
Section 8.08     Successor Trustee............................................130
Section 8.09     Merger or Consolidation of the Trustee.......................130
Section 8.10     Appointment of Co-Trustee or Separate Trustee................130
Section 8.11     Tax Matters..................................................132
Section 8.12     Periodic Filings.............................................135
Section 8.13     Tax Classification of the Excess Reserve Fund
                  Account, the Swap Account, the Interest Rate
                  Swap Agreement and the Cap Agreements......................141


                                   ARTICLE IX
                     CONCERNING THE SECURITIES ADMINISTRATOR

Section 9.01     Duties of Securities Administrator...........................142
Section 9.02     Certain Matters Affecting the Securities Administrator.......143
Section 9.03     Securities Administrator Not Liable for Certificates
                  or Mortgage Loans..........................................145
Section 9.04     Securities Administrator May Own Certificates................145
Section 9.05     Securities Administrator's Fees and Expenses.................146
Section 9.06     Eligibility Requirements for Securities Administrator........146
Section 9.07     Resignation and Removal of Securities Administrator..........147
Section 9.08     Successor Securities Administrator...........................148
Section 9.09     Merger or Consolidation of Securities Administrator..........148
Section 9.10     Assignment or Delegation of Duties by the Securities
                  Administrator..............................................148


                                      -iii-

<PAGE>

                                    ARTICLE X

                                   TERMINATION

Section 10.01    Termination upon Liquidation or Purchase of the
                   Mortgage Loans.............................................149
Section 10.02    Final Distribution on the Certificates.......................150
Section 10.03    Additional Termination Requirements..........................151


                                    ARTICLE XI

                            MISCELLANEOUS PROVISIONS

Section 11.01    Amendment....................................................152
Section 11.02    Recordation of Agreement; Counterparts.......................153
Section 11.03    Governing Law................................................154
Section 11.04    Intention of Parties.........................................154
Section 11.05    Notices......................................................154
Section 11.06    Severability of Provisions...................................155
Section 11.07    Assignment...................................................155
Section 11.08    Limitation on Rights of Certificateholders...................155
Section 11.09    Inspection and Audit Rights..................................156
Section 11.10    Certificates Nonassessable and Fully Paid....................156
Section 11.11    Assignment; Sales; Advance Facilities........................157
Section 11.12    Rule of Construction.........................................158
Section 11.13    Waiver of Jury Trial.........................................158
Section 11.14    Rights of the Swap Provider..................................158
Section 11.15    Regulation AB Compliance; Intent of the Parties;
                  Reasonableness.............................................158


                                      -iv-

<PAGE>


SCHEDULES

Schedule I       Mortgage Loan Schedule

Schedule II      Representations and Warranties of ___________

Schedule III     Representations and Warranties of the Responsible Party as to
                the Mortgage Loans

Schedule IV      Representations and Warranties as to the Responsible Party

Schedule V       Representations and Warranties of the Depositor as to the
                Mortgage Loans

EXHIBITS

Exhibit A        Form of Class A, Class M and Class B Certificates

Exhibit B        Form of Class P Certificate

Exhibit C        Form of Class R Certificate

Exhibit D        Form of Class X Certificate

Exhibit E        Form of Initial Certification of Trustee

Exhibit F        Form of Document Certification and Exception Report of Trustee

Exhibit G        Form of Residual Transfer Affidavit

Exhibit H        Form of Transferor Certificate

Exhibit I        Form of Rule 144A Letter

Exhibit J        Form of Request for Release

Exhibit K        Form of Contents for Each Mortgage File

Exhibit L        Form of Certification to be provided with Form 10-K

Exhibit M        Form of Trustee's Certification to be provided to Depositor

Exhibit N        Form of Servicer's Certification to be provided to Depositor

Exhibit O        Servicing Criteria

Exhibit P        Additional Form 10-D Disclosure

Exhibit Q        Additional Form 10-K Disclosure


                                       -v-

<PAGE>


Exhibit R        Form 8-K Disclosure Information

Exhibit S        Interest Rate Swap Agreement

Exhibit T        Class M Cap Agreement

Exhibit U        Class B Cap Agreement

Exhibit V        Servicer Remittance Report Format

Exhibit W         Additional Disclosure Notification

Exhibit X        Sponsor Representation Letter


                                      -vi-

<PAGE>


            THIS POOLING AND SERVICING AGREEMENT, dated as of ________, 200_,
among BCAP LLC, a _______________, as depositor (the "Depositor"),
_____________________, a _________, as servicer (the "Servicer"),
_____________________, a _________, as responsible party (the "Responsible
Party"), _____________________, a _________, as loan performance advisor (the
"Loan Performance Advisor"), _____________________, as trustee (the "Trustee")
and _____________________, a _________, as securities administrator and
custodian.


                              W I T N E S S E T H:
                              - - - - - - - - - -

            In consideration of the mutual agreements herein contained, the
parties hereto agree as follows:

                              PRELIMINARY STATEMENT

            The Trustee shall elect that four segregated asset pools within the
Trust Fund (exclusive of (i) the Prepayment Charges, (ii) the Interest Rate Swap
Agreement and the Cap Agreements, (iii) the Swap Account, (iv) the Excess
Reserve Fund Account, and (v) the right of the LIBOR Certificates to receive
Upper Tier Carry Forward Amounts and, without duplication, Basis Risk Carry
Forward Amounts and the obligation to pay Class IO Shortfalls) be treated for
federal income tax purposes as comprising four REMICs (each, a "Trust REMIC" or,
in the alternative, Pooling Tier REMIC-1, Pooling Tier REMIC-2, the Lower Tier
REMIC and the Upper Tier REMIC, respectively). Each Class of Certificates (other
than the Class P and Class R Certificates), other than the right of each Class
of LIBOR Certificates to receive Upper Tier Carry Forward Amounts and, without
duplication, Basis Risk Carry Forward Amounts and the obligation to pay Class IO
Shortfalls and the right of the Class X Certificates to receive payments from
the Interest Rate Swap Agreement, the Cap Agreements and the Class IO
Shortfalls, represents ownership of a regular interest in the Upper Tier REMIC
for purposes of the REMIC Provisions. The Class R Certificates represent
ownership of the sole class of residual interest in each of Pooling Tier
REMIC-1, Pooling Tier REMIC-2, the Lower Tier REMIC and the Upper Tier REMIC for
purposes of the REMIC Provisions. The Startup Day for each REMIC described
herein is the Closing Date. The latest possible maturity date for each regular
interest is the latest date referenced in Section 2.06.

            The Upper Tier REMIC shall hold as assets the several classes of
uncertificated Lower Tier REMIC Regular Interests, set out below. The Lower Tier
REMIC shall hold as assets the several classes of uncertificated Pooling Tier
REMIC-2 Regular Interests. Pooling Tier REMIC-2 shall hold as assets the several
classes of uncertificated Pooling Tier REMIC-1 Regular Interests. Pooling Tier
REMIC-1 shall hold as assets the assets of the Trust Fund (exclusive of (i) the
Prepayment Premiums, (ii) the Interest Rate Swap Agreement and the Cap
Agreements, (iii) the Swap Account, (iv) the Excess Reserve Fund Account, and
(v) the right of the LIBOR Certificates to receive Upper Tier Carry Forward
Amounts and, without duplication, Basis Risk Carry Forward Amounts and the
obligation to pay Class IO Shortfalls).

            For federal income tax purposes, the Class P Certificates represent
beneficial ownership of the Prepayment Charges, each Class of LIBOR Certificates
represents beneficial



<PAGE>


ownership of a regular interest in the Upper Tier REMIC and the right to receive
Upper-Tier Carry Forward Amounts and, without duplication, Basis Risk Carry
Forward Amounts, and the Class X Certificates represent beneficial ownership of
two regular interests in the Upper Tier REMIC and the right to receive payments
from the Class IO Shortfalls, the Excess Reserve Fund Account, the Swap Account,
the Interest Rate Swap Agreement and the Cap Agreements, which portions of the
Trust Fund shall be treated as a grantor trust.

                               Pooling Tier REMIC-1
                              --------------------

            Pooling Tier REMIC-1 shall issue the following interests in Pooling
Tier REMIC-1, and each such interest, other than the Class PT1-R Interest, is
hereby designated as a regular interest in the Pooling Tier REMIC-1. Pooling
Tier REMIC-1 Interests with an "I" in their designation shall relate to the
Group I Mortgage Loans and Pooling Tier REMIC-1 Interests with a "II" in their
designation shall relate to the Group II Mortgage Loans. Pooling Tier REMIC-1
shall also issue the Class PT1-R Interest, which shall be represented by the
Class R Certificates. The Class PT1-R Interest is hereby designated as the sole
class of residual interest in Pooling Tier REMIC-1.

                                                             Initial Pooling Tier
                                   Pooling Tier REMIC-1            REMIC-1
Pooling Tier REMIC-1 Interest           Interest Rate          Principal Amount
-----------------------------       --------------------      --------------------
Class PT1-I-1                                (1)                 $
Class PT1-I-2A                               (2)                 $
Class PT1-I-2B                               (3)                 $
Class PT1-I-3A                               (2)                 $
Class PT1-I-3B                               (3)                 $
Class PT1-I-4A                               (2)                 $
Class PT1-I-4B                               (3)                 $
Class PT1-I-5A                               (2)                 $
Class PT1-I-5B                               (3)                 $
Class PT1-I-6A                               (2)                 $
Class PT1-I-6B                               (3)                  $
Class PT1-I-7A                               (2)                 $
Class PT1-I-7B                               (3)                 $
Class PT1-I-8A                               (2)                 $
Class PT1-I-8B                               (3)                  $
Class PT1-I-9A                               (2)                 $
Class PT1-I-9B                               (3)                 $
Class PT1-I-10A                              (2)                 $
Class PT1-I-10B                              (3)                  $
Class PT1-I-11A                              (2)                 $
Class PT1-I-11B                              (3)                 $
Class PT1-I-12A                              (2)                 $
Class PT1-I-12B                              (3)                  $
Class PT1-I-13A                              (2)                 $
Class PT1-I-13B                              (3)                 $
Class PT1-I-14A                              (2)                 $



                                       -2-

<PAGE>

                                                            Initial Pooling Tier
                                   Pooling Tier REMIC-1            REMIC-1
Pooling Tier REMIC-1 Interest           Interest Rate          Principal Amount
-----------------------------       --------------------      --------------------
Class PT1-I-14B                              (3)                 $
Class PT1-I-15A                              (2)                 $
Class PT1-I-15B                              (3)                  $
Class PT1-I-16A                              (2)                 $
Class PT1-I-16B                              (3)                 $
Class PT1-I-17A                              (2)                 $
Class PT1-I-17B                              (3)                  $
Class PT1-I-18A                              (2)                 $
Class PT1-I-18B                              (3)                 $
Class PT1-I-19A                              (2)                 $
Class PT1-I-19B                              (3)                  $
Class PT1-I-20A                              (2)                 $
Class PT1-I-20B                              (3)                 $
Class PT1-I-21A                              (2)                 $
Class PT1-I-21B                              (3)                 $
Class PT1-I-22A                              (2)                 $
Class PT1-I-22B                              (3)                 $
Class PT1-I-23A                              (2)                 $
Class PT1-I-23B                               (3)                 $
Class PT1-I-24A                              (2)                 $
Class PT1-I-24B                              (3)                 $
Class PT1-I-25A                              (2)                 $
Class PT1-I-25B                               (3)                 $
Class PT1-I-26A                              (2)                 $
Class PT1-I-26B                              (3)                 $
Class PT1-I-27A                              (2)                 $
Class PT1-I-27B                               (3)                 $
Class PT1-I-28A                              (2)                 $
Class PT1-I-28B                              (3)                 $
Class PT1-I-29A                              (2)                 $
Class PT1-I-29B                               (3)                 $
Class PT1-I-30A                              (2)                 $
Class PT1-I-30B                              (3)                 $
Class PT1-I-31A                              (2)                 $
Class PT1-I-31B                               (3)                 $
Class PT1-I-32A                              (2)                 $
Class PT1-I-32B                              (3)                 $
Class PT1-I-33A                              (2)                 $
Class PT1-I-33B                               (3)                 $
Class PT1-I-34A                              (2)                 $
Class PT1-I-34B                              (3)                 $
Class PT1-I-35A                              (2)                 $


                                        -3-

<PAGE>


                                                            Initial Pooling Tier
                                   Pooling Tier REMIC-1            REMIC-1
Pooling Tier REMIC-1 Interest           Interest Rate          Principal Amount
-----------------------------       --------------------      --------------------
Class PT1-I-35B                              (3)                 $
Class PT1-I-36A                              (2)                 $
Class PT1-I-36B                               (3)                 $
Class PT1-I-37A                              (2)                 $
Class PT1-I-37B                              (3)                 $
Class PT1-I-38A                              (2)                 $
Class PT1-I-38B                               (3)                 $
Class PT1-I-39A                              (2)                 $
Class PT1-I-39B                              (3)                 $
Class PT1-I-40A                              (2)                 $
Class PT1-I-40B                               (3)                 $
Class PT1-I-41A                              (2)                 $
Class PT1-I-41B                              (3)                 $
Class PT1-I-42A                              (2)                 $
Class PT1-I-42B                               (3)                 $
Class PT1-I-43A                              (2)                 $
Class PT1-I-43B                              (3)                 $
Class PT1-I-44A                              (2)                 $
Class PT1-I-44B                              (3)                 $
Class PT1-I-45A                              (2)                 $
Class PT1-I-45B                              (3)                 $
Class PT1-I-46A                              (2)                 $
Class PT1-I-46B                              (3)                 $
Class PT1-I-47A                              (2)                 $
Class PT1-I-47B                              (3)                 $
Class PT1-I-48A                              (2)                 $
Class PT1-I-48B                              (3)                 $
Class PT1-I-49A                              (2)                 $
Class PT1-I-49B                              (3)                 $
Class PT1-I-50A                              (2)                 $
Class PT1-I-50B                              (3)                 $
Class PT1-I-51A                              (2)                 $
Class PT1-I-51B                              (3)                 $
Class PT1-I-52A                              (2)                 $
Class PT1-I-52B                              (3)                 $
Class PT1-I-53A                              (2)                 $
Class PT1-I-53B                              (3)                 $
Class PT1-I-54A                              (2)                  $
Class PT1-I-54B                              (3)                 $
Class PT1-I-55A                              (2)                 $
Class PT1-I-55B                              (3)                 $
Class PT1-I-56A                              (3)                  $


                                       -4-

<PAGE>


                                                            Initial Pooling Tier
                                   Pooling Tier REMIC-1            REMIC-1
Pooling Tier REMIC-1 Interest            Interest Rate          Principal Amount
-----------------------------       --------------------      --------------------
Class PT1-I-56B                              (4)                 $
Class PT1-I-57A                              (3)                 $
Class PT1-I-57B                              (4)                 $
Class PT1-II-1                               (4)                 $
Class PT1-II-2A                              (5)                 $
Class PT1-II-2B                              (6)                 $
Class PT1-II-3A                              (5)                 $
Class PT1-II-3B                              (6)                 $
Class PT1-II-4A                              (5)                 $
Class PT1-II-4B                              (6)                  $
Class PT1-II-5A                              (5)                 $
Class PT1-II-5B                              (6)                 $
Class PT1-II-6A                              (5)                 $
Class PT1-II-6B                              (6)                  $
Class PT1-II-7A                              (5)                 $
Class PT1-II-7B                              (6)                 $
Class PT1-II-8A                              (5)                 $
Class PT1-II-8B                              (6)                  $
Class PT1-II-9A                              (5)                 $
Class PT1-II-9B                              (6)                 $
Class PT1-II-10A                             (5)                 $
Class PT1-II-10B                             (6)                  $
Class PT1-II-11A                             (5)                 $
Class PT1-II-11B                             (6)                 $
Class PT1-II-12A                             (5)                 $
Class PT1-II-12B                             (6)                 $
Class PT1-II-13A                             (5)                 $
Class PT1-II-13B                             (6)                 $
Class PT1-II-14A                             (5)                 $
Class PT1-II-14B                              (6)                 $
Class PT1-II-15A                             (5)                 $
Class PT1-II-15B                             (6)                 $
Class PT1-II-16A                             (5)                 $
Class PT1-II-16B                              (6)                 $
Class PT1-II-17A                             (5)                 $
Class PT1-II-17B                             (6)                 $
Class PT1-II-18A                             (5)                 $
Class PT1-II-18B                              (6)                 $
Class PT1-II-19A                             (5)                 $
Class PT1-II-19B                             (6)                 $
Class PT1-II-20A                             (5)                 $
Class PT1-II-20B                              (6)                 $


                                       -5-

<PAGE>


                                                            Initial Pooling Tier
                                   Pooling Tier REMIC-1            REMIC-1
Pooling Tier REMIC-1 Interest           Interest Rate          Principal Amount
-----------------------------       --------------------      --------------------
Class PT1-II-21A                             (5)                 $
Class PT1-II-21B                              (6)                 $
Class PT1-II-22A                             (5)                 $
Class PT1-II-22B                             (6)                 $
Class PT1-II-23A                             (5)                 $
Class PT1-II-23B                              (6)                 $
Class PT1-II-24A                             (5)                 $
Class PT1-II-24B                             (6)                 $
Class PT1-II-25A                             (5)                 $
Class PT1-II-25B                              (6)                 $
Class PT1-II-26A                             (5)                 $
Class PT1-II-26B                             (6)                 $
Class PT1-II-27A                             (5)                 $
Class PT1-II-27B                              (6)                 $
Class PT1-II-28A                             (5)                 $
Class PT1-II-28B                             (6)                 $
Class PT1-II-29A                             (5)                 $
Class PT1-II-29B                              (6)                 $
Class PT1-II-30A                             (5)                 $
Class PT1-II-30B                             (6)                 $
Class PT1-II-31A                             (5)                 $
Class PT1-II-31B                              (6)                 $
Class PT1-II-32A                             (5)                 $
Class PT1-II-32B                             (6)                 $
Class PT1-II-33A                             (5)                 $
Class PT1-II-33B                              (6)                 $
Class PT1-II-34A                             (5)                 $
Class PT1-II-34B                             (6)                 $
Class PT1-II-35A                             (5)                 $
Class PT1-II-35B                             (6)                 $
Class PT1-II-36A                             (5)                 $
Class PT1-II-36B                             (6)                 $
Class PT1-II-37A                             (5)                 $
Class PT1-II-37B                             (6)                 $
Class PT1-II-38A                             (5)                 $
Class PT1-II-38B                             (6)                 $
Class PT1-II-39A                             (5)                 $
Class PT1-II-39B                             (6)                 $
Class PT1-II-40A                             (5)                 $
Class PT1-II-40B                             (6)                 $
Class PT1-II-41A                             (5)                 $
Class PT1-II-41B                             (6)                 $


                                       -6-

<PAGE>


                                                            Initial Pooling Tier
                                   Pooling Tier REMIC-1             REMIC-1
Pooling Tier REMIC-1 Interest           Interest Rate          Principal Amount
-----------------------------       --------------------      --------------------
Class PT1-II-42A                             (5)                 $
Class PT1-II-42B                             (6)                 $
Class PT1-II-43A                             (5)                 $
Class PT1-II-43B                             (6)                 $
Class PT1-II-44A                             (5)                 $
Class PT1-II-44B                             (6)                 $
Class PT1-II-45A                             (5)                 $
Class PT1-II-45B                             (6)                 $
Class PT1-II-46A                             (5)                 $
Class PT1-II-46B                             (6)                 $
Class PT1-II-47A                             (5)                 $
Class PT1-II-47B                             (6)                 $
Class PT1-II-48A                             (5)                 $
Class PT1-II-48B                             (6)                 $
Class PT1-II-49A                             (5)                 $
Class PT1-II-49B                             (6)                 $
Class PT1-II-50A                             (5)                 $
Class PT1-II-50B                             (6)                 $
Class PT1-II-51A                             (5)                 $
Class PT1-II-51B                             (6)                 $
Class PT1-II-52A                             (5)                  $
Class PT1-II-52B                             (6)                 $
Class PT1-II-53A                             (5)                 $
Class PT1-II-53B                             (6)                 $
Class PT1-II-54A                             (5)                  $
Class PT1-II-54B                             (6)                 $
Class PT1-II-55A                             (5)                 $
Class PT1-II-55B                             (6)                 $
Class PT1-II-56A                             (5)                  $
Class PT1-II-56B                             (6)                 $
Class PT1-II-57A                             (5)                 $
Class PT1-II-57B                             (6)                 $
Class PT1-R                                  (7)                  N/A

----------

(1)   For any Distribution Date (and the related Interest Accrual Period), this
     Pooling Tier REMIC-1 Regular Interest shall bear interest at a per annum
     rate (its "Pooling Tier REMIC-1 Interest Rate") equal to the Pooling Tier
     REMIC-1 Loan Group I WAC Rate.

(2)   For any Distribution Date (and the related Interest Accrual Period), this
     Pooling Tier REMIC-1 Regular Interest shall bear interest at a per annum
     rate (its "Pooling Tier REMIC-1 Interest Rate") equal to the product of (i)
     2 and (ii) the Pooling Tier REMIC-1 Loan Group I WAC Rate, subject to a
     maximum rate of _______%.

(3)   For any Distribution Date (and the related Interest Accrual Period), this
     Pooling Tier REMIC-1 Regular Interest shall bear interest at a per annum
     rate (its "Pooling Tier REMIC-1 Interest Rate") equal to the excess, if
     any, of (A) the product of (i) 2 and (ii) the Pooling Tier REMIC-1 Loan
     Group I WAC Rate over (B) _______%.


                                        -7-

<PAGE>


(4)   For any Distribution Date (and the related Interest Accrual Period), this
     Pooling Tier REMIC-1 Regular Interest shall bear interest at a per annum
     rate (its "Pooling Tier REMIC-1 Interest Rate") equal to the Pooling Tier
     REMIC-1 Loan Group II WAC Rate.

(5)   For any Distribution Date (and the related Interest Accrual Period), this
     Pooling Tier REMIC-1 Regular Interest shall bear interest at a per annum
     rate (its "Pooling Tier REMIC-1 Interest Rate") equal to the product of (i)
     2 and (ii) the Pooling Tier REMIC-1 Loan Group II WAC Rate, subject to a
     maximum rate of _______%.

(6)   For any Distribution Date (and the related Interest Accrual Period), this
     Pooling Tier REMIC-1 Regular Interest shall bear interest at a per annum
     rate (its "Pooling Tier REMIC-1 Interest Rate") equal to the excess, if
     any, of (A) the product of (i) 2 and (ii) the Pooling Tier REMIC-1 Loan
     Group II WAC Rate over (B) _______%.

(7)   The Class PT1-R Interest shall not have a principal balance and shall not
     bear interest.

            On each Distribution Date, the Securities Administrator shall first
pay from the Trust Fund and charge as an expense of Pooling Tier REMIC-1 all
expenses of the Trust for such Distribution Date. Such expense, other than
Servicing Fees and Trustee Fees, shall be allocated in the same manner as
Realized Losses.

            On each Distribution Date, the interest distributable in respect of
the Mortgage Loans from the related Loan Group for such Distribution Date shall
be deemed to be distributed to the Pooling Tier REMIC-1 Regular Interests at the
rates shown above.

            On each Distribution Date, Realized Losses, Subsequent Recoveries
and payments of principal in respect of the Group I Mortgage Loans shall be
allocated to the outstanding Pooling Tier REMIC-1 Regular Interest relating to
the Group I Mortgage Loans with the lowest numerical denomination until the
Pooling Tier REMIC-1 Principal Amount of such interest is reduced to zero,
provided that, with respect to Pooling Tier REMIC-1 Regular Interests relating
to the Group I Mortgage Loans with the same numerical denomination, such
Realized Losses and payments of principal shall be allocated pro rata between
such Pooling Tier REMIC-1 Regular Interests until the Pooling-Tier REMIC-1
Principal Amount of such interests is reduced to zero.

            On each Distribution Date, Realized Losses, Subsequent Recoveries
and payments of principal in respect of the Group II Mortgage Loans shall be
allocated to the outstanding Pooling Tier REMIC-1 Regular Interest relating to
the Group II Mortgage Loans with the lowest numerical denomination until the
Pooling Tier REMIC-1 Principal Amount of such interest is reduced to zero,
provided that, with respect to Pooling Tier REMIC-1 Regular Interests relating
to the Group II Mortgage Loans with the same numerical denomination, such
Realized Losses, Subsequent Recoveries and payments of principal shall be
allocated pro rata between such Pooling Tier REMIC-1 Regular Interests until the
Pooling-Tier REMIC-1 Principal Amount of such interests is reduced to zero.

                              Pooling-Tier REMIC-2
                              --------------------

            Pooling-Tier REMIC-2 shall issue the following interests in
Pooling-Tier REMIC-2, and each such interest, other than the Class PT2-R
Interest, is hereby designated as a regular interest in Pooling-Tier REMIC-2.
Pooling Tier REMIC-2 Interests with an "I" in their designation shall relate to
The Group I Mortgage Loans and Pooling Tier REMIC-2 Interests with a "II" in
their designation shall relate to The Group II Mortgage Loans. The Class PT2-R


                                       -8-

<PAGE>

Interest is hereby designated as the sole class of residual interest in
Pooling-Tier REMIC-2 and shall be represented by the Class R Certificates.


<TABLE>
<CAPTION>

                                       Pooling-Tier        Corresponding        Corresponding        Corresponding
                     Pooling-Tier     REMIC-2 Initial       Pooling-Tier          Pooling-Tier          Scheduled
   Pooling-Tier          REMIC-2          Principal           REMIC-2 IO             REMIC-1             Crossover
  REMIC-2 Interest     Interest Rate         Amount             Interest          Regular Interest    Distribution Date
------------------    -------------    ---------------    -------------------    ----------------    -----------------
<S>                   <C>              <C>                 <C>                    <C>                 <C>
Class PT2-I-1              (1)         $                         N/A                    N/A                 N/A
Class PT2-I-2A             (2)         $                  Class PT2-I-IO-2              N/A                  N/A
Class PT2-I-2B             (3)         $                         N/A                    N/A                 N/A
Class PT2-I-3A             (2)         $                  Class PT2-I-IO-3              N/A                 N/A
Class PT2-I-3B             (3)         $                         N/A                    N/A                 N/A
Class PT2-I-4A             (2)         $                  Class PT2-I-IO-4              N/A                 N/A
Class PT2-I-4B             (3)         $                         N/A                     N/A                 N/A
Class PT2-I-5A             (2)         $                  Class PT2-I-IO-5              N/A                 N/A
Class PT2-I-5B             (3)         $                         N/A                    N/A                 N/A
Class PT2-I-6A             (2)         $                  Class PT2-I-IO-6              N/A                 N/A
Class PT2-I-6B             (3)         $                         N/A                    N/A                 N/A
Class PT2-I-7A             (2)         $                  Class PT2-I-IO-7              N/A                 N/A
Class PT2-I-7B             (3)         $                         N/A                    N/A                 N/A
Class PT2-I-8A             (2)         $                  Class PT2-I-IO-8              N/A                  N/A
Class PT2-I-8B             (3)         $                         N/A                    N/A                 N/A
Class PT2-I-9A             (2)         $                  Class PT2-I-IO-9              N/A                 N/A
Class PT2-I-9B             (3)          $                         N/A                    N/A                 N/A
Class PT2-I-10A            (2)         $                  Class PT2-I-IO-10             N/A                 N/A
Class PT2-I-10B            (3)         $                         N/A                     N/A                 N/A
Class PT2-I-11A            (2)         $                  Class PT2-I-IO-11             N/A                 N/A
Class PT2-I-11B            (3)         $                         N/A                    N/A                 N/A
Class PT2-I-12A            (2)         $                  Class PT2-I-IO-12             N/A                 N/A
Class PT2-I-12B            (3)         $                         N/A                    N/A                 N/A
Class PT2-I-13A            (2)         $                   Class PT2-I-IO-13             N/A                 N/A
Class PT2-I-13B            (3)         $                         N/A                    N/A                 N/A
Class PT2-I-14A            (2)         $                  Class PT2-I-IO-14             N/A                  N/A
Class PT2-I-14B            (3)         $                         N/A                    N/A                 N/A
Class PT2-I-15A            (2)         $                  Class PT2-I-IO-15             N/A                 N/A
Class PT2-I-15B            (3)         $                         N/A                    N/A                 N/A
Class PT2-I-16A            (2)         $                  Class PT2-I-IO-16             N/A                 N/A
Class PT2-I-16B            (3)         $                         N/A                     N/A                 N/A
Class PT2-I-17A            (2)         $                  Class PT2-I-IO-17             N/A                 N/A
Class PT2-I-17B            (3)         $                         N/A                    N/A                 N/A
Class PT2-I-18A            (2)         $                  Class PT2-I-IO-18             N/A                 N/A
Class PT2-I-18B            (3)         $                         N/A                    N/A                 N/A
Class PT2-I-19A            (2)         $                   Class PT2-I-IO-19             N/A                 N/A
Class PT2-I-19B            (3)         $                         N/A                    N/A                 N/A
Class PT2-I-20A            (2)         $                  Class PT2-I-IO-20             N/A                  N/A
Class PT2-I-20B            (3)         $                         N/A                    N/A                 N/A
Class PT2-I-21A            (2)         $                  Class PT2-I-IO-21             N/A                 N/A
</TABLE>


                                        -9-

<PAGE>
<TABLE>
<CAPTION>

                                       Pooling-Tier        Corresponding        Corresponding        Corresponding
                     Pooling-Tier     REMIC-2 Initial       Pooling-Tier          Pooling-Tier          Scheduled
   Pooling-Tier          REMIC-2          Principal           REMIC-2 IO             REMIC-1             Crossover
  REMIC-2 Interest     Interest Rate         Amount             Interest          Regular Interest    Distribution Date
------------------    -------------    ---------------    -------------------    ----------------    -----------------
<S>                   <C>              <C>                <C>                    <C>                 <C>
Class PT2-I-21B            (3)         $                          N/A                    N/A                 N/A
Class PT2-I-22A            (2)         $                  Class PT2-I-IO-22             N/A                 N/A
Class PT2-I-22B            (3)         $                         N/A                    N/A                  N/A
Class PT2-I-23A            (2)         $                  Class PT2-I-IO-23             N/A                 N/A
Class PT2-I-23B            (3)         $                         N/A                    N/A                 N/A
Class PT2-I-24A            (2)         $                  Class PT2-I-IO-24             N/A                 N/A
Class PT2-I-24B            (3)         $                         N/A                    N/A                 N/A
Class PT2-I-25A            (2)         $                  Class PT2-I-IO-25             N/A                 N/A
Class PT2-I-25B            (3)         $                         N/A                    N/A                 N/A
Class PT2-I-26A            (2)         $                  Class PT2-I-IO-26             N/A                 N/A
Class PT2-I-26B            (3)         $                         N/A                    N/A                 N/A
Class PT2-I-27A            (2)         $                  Class PT2-I-IO-27             N/A                 N/A
Class PT2-I-27B            (3)         $                          N/A                    N/A                 N/A
Class PT2-I-28A            (2)         $                  Class PT2-I-IO-28             N/A                 N/A
Class PT2-I-28B            (3)         $                         N/A                    N/A                  N/A
Class PT2-I-29A            (2)         $                  Class PT2-I-IO-29             N/A                 N/A
Class PT2-I-29B            (3)         $                         N/A                    N/A                 N/A
Class PT2-I-30A             (2)         $                  Class PT2-I-IO-30             N/A                 N/A
Class PT2-I-30B            (3)         $                         N/A                    N/A                 N/A
Class PT2-I-31A            (2)         $                  Class PT2-I-IO-31             N/A                 N/A
Class PT2-I-31B            (3)         $                         N/A                    N/A                 N/A
Class PT2-I-32A            (2)         $                  Class PT2-I-IO-32             N/A                 N/A
Class PT2-I-32B            (3)         $                         N/A                    N/A                 N/A
Class PT2-I-33A            (2)         $                  Class PT2-I-IO-33             N/A                 N/A
Class PT2-I-33B            (3)         $                          N/A                    N/A                 N/A
Class PT2-I-34A            (2)         $                  Class PT2-I-IO-34             N/A                 N/A
Class PT2-I-34B            (3)         $                         N/A                    N/A                 N/A
Class PT2-I-35A            (2)         $                  Class PT2-I-IO-35             N/A                 N/A
Class PT2-I-35B            (3)         $                         N/A                    N/A                 N/A
Class PT2-I-36A             (2)         $                  Class PT2-I-IO-36             N/A                 N/A
Class PT2-I-36B            (3)         $                         N/A                    N/A                 N/A
Class PT2-I-37A            (2)         $                  Class PT2-I-IO-37             N/A                 N/A
Class PT2-I-37B            (3)         $                         N/A                    N/A                 N/A
Class PT2-I-38A            (2)         $                  Class PT2-I-IO-38             N/A                 N/A
Class PT2-I-38B            (3)         $                         N/A                    N/A                 N/A
Class PT2-I-39A            (2)         $                  Class PT2-I-IO-39             N/A                 N/A
Class PT2-I-39B            (3)         $                          N/A                    N/A                 N/A
Class PT2-I-40A            (2)         $                  Class PT2-I-IO-40             N/A                 N/A
Class PT2-I-40B            (3)         $                         N/A                     N/A                 N/A
Class PT2-I-41A            (2)         $                  Class PT2-I-IO-41             N/A                 N/A
Class PT2-I-41B            (3)         $                         N/A                    N/A                 N/A
Class PT2-I-42A             (2)         $                  Class PT2-I-IO-42             N/A                 N/A
</TABLE>


                                      -10-

<PAGE>


<TABLE>
<CAPTION>

                                       Pooling-Tier        Corresponding        Corresponding        Corresponding
                     Pooling-Tier     REMIC-2 Initial       Pooling-Tier          Pooling-Tier          Scheduled
   Pooling-Tier          REMIC-2          Principal           REMIC-2 IO             REMIC-1             Crossover
  REMIC-2 Interest     Interest Rate         Amount             Interest          Regular Interest    Distribution Date
------------------    -------------    ---------------    -------------------    ----------------    -----------------
<S>                   <C>               <C>                <C>                    <C>                 <C>
Class PT2-I-42B            (3)         $                         N/A                    N/A                 N/A
Class PT2-I-43A            (2)         $                  Class PT2-I-IO-43             N/A                 N/A
Class PT2-I-43B            (3)         $                         N/A                    N/A                 N/A
Class PT2-I-44A            (2)         $                  Class PT2-I-IO-44             N/A                 N/A
Class PT2-I-44B             (3)         $                         N/A                    N/A                 N/A
Class PT2-I-45A            (2)         $                  Class PT2-I-IO-45             N/A                 N/A
Class PT2-I-45B            (3)         $                          N/A                    N/A                 N/A
Class PT2-I-46A            (2)         $                  Class PT2-I-IO-46             N/A                 N/A
Class PT2-I-46B            (3)         $                         N/A                    N/A                 N/A
Class PT2-I-47A            (2)         $                  Class PT2-I-IO-47             N/A                 N/A
Class PT2-I-47B            (3)         $                         N/A                    N/A                 N/A
Class PT2-I-48A            (2)         $                  Class PT2-I-IO-48             N/A                 N/A
Class PT2-I-48B            (3)         $                         N/A                    N/A                 N/A
Class PT2-I-49A            (2)         $                  Class PT2-I-IO-49              N/A                 N/A
Class PT2-I-49B            (3)         $                         N/A                    N/A                 N/A
Class PT2-I-50A            (2)         $                  Class PT2-I-IO-50             N/A                 N/A
Class PT2-I-50B            (3)         $                         N/A                    N/A                 N/A
Class PT2-I-51A            (2)         $                  Class PT2-I-IO-51             N/A                 N/A
Class PT2-I-51B            (3)         $                          N/A                    N/A                 N/A
Class PT2-I-52A            (2)         $                  Class PT2-I-IO-52             N/A                 N/A
Class PT2-I-52B            (3)         $                         N/A                    N/A                  N/A
Class PT2-I-53A            (2)         $                  Class PT2-I-IO-53             N/A                 N/A
Class PT2-I-53B            (3)         $                         N/A                    N/A                 N/A
Class PT2-I-54A            (2)          $                  Class PT2-I-IO-54             N/A                 N/A
Class PT2-I-54B            (3)         $                         N/A                    N/A                 N/A
Class PT2-I-55A            (2)         $                  Class PT2-I-IO-55              N/A                 N/A
Class PT2-I-55B            (3)         $                         N/A                    N/A                 N/A
Class PT2-I-56A            (2)         $                  Class PT2-I-IO-56             N/A                 N/A
Class PT2-I-56B            (3)         $                         N/A                    N/A                 N/A
Class PT2-I-57A            (2)         $                  Class PT2-I-IO-56             N/A                 N/A
Class PT2-I-57B            (3)         $                          N/A                    N/A                 N/A
Class PT2-I-IO-2           (4)               (4)                 N/A             Class PT1-I-2A
Class PT2-I-IO-3           (4)               (4)                 N/A             Class PT1-I-3A
Class PT2-I-IO-4            (4)               (4)                 N/A             Class PT1-I-4A
Class PT2-I-IO-5           (4)               (4)                 N/A             Class PT1-I-5A
Class PT2-I-IO-6           (4)               (4)                 N/A             Class PT1-I-6A
Class PT2-I-IO-7           (4)               (4)                 N/A             Class PT1-I-7A
Class PT2-I-IO-8           (4)               (4)                 N/A             Class PT1-I-8A
Class PT2-I-IO-9           (4)               (4)                 N/A              Class PT1-I-9A
Class PT2-I-IO-10          (4)               (4)                 N/A             Class PT1-I-10A
Class PT2-I-IO-11          (4)               (4)                 N/A             Class PT1-I-11A
Class PT2-I-IO-12          (4)               (4)                  N/A             Class PT1-I-12A
</TABLE>


                                       -11-

<PAGE>

<TABLE>
<CAPTION>

                                       Pooling-Tier        Corresponding        Corresponding        Corresponding
                      Pooling-Tier     REMIC-2 Initial       Pooling-Tier          Pooling-Tier          Scheduled
   Pooling-Tier          REMIC-2          Principal           REMIC-2 IO             REMIC-1             Crossover
  REMIC-2 Interest     Interest Rate         Amount              Interest          Regular Interest    Distribution Date
------------------    -------------    ---------------    -------------------    ----------------    -----------------
<S>                   <C>              <C>                <C>                    <C>                 <C>
Class PT2-I-IO-13          (4)               (4)                 N/A             Class PT1-I-13A
Class PT2-I-IO-14          (4)               (4)                 N/A             Class PT1-I-14A
Class PT2-I-IO-15          (4)               (4)                  N/A             Class PT1-I-15A
Class PT2-I-IO-16          (4)               (4)                 N/A             Class PT1-I-16A
Class PT2-I-IO-17          (4)               (4)                 N/A             Class PT1-I-17A
Class PT2-I-IO-18          (4)               (4)                 N/A             Class PT1-I-18A
Class PT2-I-IO-19          (4)               (4)                 N/A             Class PT1-I-19A
Class PT2-I-IO-20          (4)               (4)                 N/A             Class PT1-I-20A
Class PT2-I-IO-21          (4)               (4)                 N/A             Class PT1-I-21A
Class PT2-I-IO-22          (4)               (4)                 N/A             Class PT1-I-22A
Class PT2-I-IO-23          (4)               (4)                 N/A              Class PT1-I-23A
Class PT2-I-IO-24          (4)               (4)                 N/A             Class PT1-I-24A
Class PT2-I-IO-25          (4)               (4)                 N/A             Class PT1-I-25A
Class PT2-I-IO-26          (4)               (4)                  N/A             Class PT1-I-26A
Class PT2-I-IO-27          (4)               (4)                 N/A             Class PT1-I-27A
Class PT2-I-IO-28          (4)               (4)                 N/A             Class PT1-I-28A
Class PT2-I-IO-29          (4)               (4)                 N/A             Class PT1-I-29A
Class PT2-I-IO-30          (4)               (4)                 N/A             Class PT1-I-30A
Class PT2-I-IO-31          (4)               (4)                 N/A             Class PT1-I-31A
Class PT2-I-IO-32          (4)               (4)                 N/A             Class PT1-I-32A
Class PT2-I-IO-33          (4)               (4)                 N/A             Class PT1-I-33A
Class PT2-I-IO-34          (4)               (4)                 N/A              Class PT1-I-34A
Class PT2-I-IO-35          (4)               (4)                 N/A             Class PT1-I-35A
Class PT2-I-IO-36          (4)               (4)                 N/A             Class PT1-I-36A
Class PT2-I-IO-37          (4)               (4)                  N/A             Class PT1-I-37A
Class PT2-I-IO-38          (4)               (4)                 N/A             Class PT1-I-38A
Class PT2-I-IO-39          (4)               (4)                 N/A             Class PT1-I-39A
Class PT2-I-IO-40          (4)               (4)                 N/A             Class PT1-I-40A
Class PT2-I-IO-41          (4)               (4)                 N/A             Class PT1-I-41A
Class PT2-I-IO-42          (4)               (4)                 N/A             Class PT1-I-42A
Class PT2-I-IO-43          (4)               (4)                 N/A             Class PT1-I-43A
Class PT2-I-IO-44          (4)               (4)                 N/A             Class PT1-I-44A
Class PT2-I-IO-45          (4)               (4)                 N/A              Class PT1-I-45A
Class PT2-I-IO-46          (4)               (4)                 N/A             Class PT1-I-46A
Class PT2-I-IO-47          (4)               (4)                 N/A             Class PT1-I-47A
Class PT2-I-IO-48          (4)               (4)                  N/A             Class PT1-I-48A
Class PT2-I-IO-49          (4)               (4)                 N/A             Class PT1-I-49A
Class PT2-I-IO-50          (4)               (4)                 N/A             Class PT1-I-50A
Class PT2-I-IO-51          (4)               (4)                 N/A             Class PT1-I-51A
Class PT2-I-IO-52          (4)               (4)                 N/A             Class PT1-I-52A
Class PT2-I-IO-53          (4)               (4)                 N/A             Class PT1-I-53A
Class PT2-I-IO-54          (4)               (4)                 N/A             Class PT1-I-54A
</TABLE>


                                      -12-

<PAGE>
<TABLE>
<CAPTION>

                                       Pooling-Tier        Corresponding        Corresponding        Corresponding
                     Pooling-Tier     REMIC-2 Initial       Pooling-Tier          Pooling-Tier          Scheduled
   Pooling-Tier          REMIC-2          Principal           REMIC-2 IO             REMIC-1             Crossover
  REMIC-2 Interest     Interest Rate         Amount             Interest          Regular Interest    Distribution Date
------------------    -------------    ---------------    -------------------    ----------------    -----------------
<S>                   <C>              <C>                <C>                    <C>                 <C>
Class PT2-I-IO-55          (4)               (4)                 N/A             Class PT1-I-55A
Class PT2-I-IO-56          (4)               (4)                 N/A             Class PT1-I-56A
Class PT2-I-IO-57          (4)               (4)                 N/A             Class PT1-I-57A
Class PT2-II-1             (5)         $                         N/A                    N/A                 N/A
Class PT2-II-2A            (6)         $                  Class PT2-II-IO-2             N/A                 N/A
Class PT2-II-2B            (7)         $                         N/A                    N/A                 N/A
Class PT2-II-3A            (6)         $                  Class PT2-II-IO-3             N/A                 N/A
Class PT2-II-3B            (7)         $                         N/A                    N/A                 N/A
Class PT2-II-4A            (6)         $                  Class PT2-II-IO-4             N/A                 N/A
Class PT2-II-4B            (7)         $                          N/A                    N/A                 N/A
Class PT2-II-5A            (6)         $                  Class PT2-II-IO-5             N/A                 N/A
Class PT2-II-5B            (7)         $                         N/A                    N/A                 N/A
Class PT2-II-6A            (6)         $                  Class PT2-II-IO-6             N/A                 N/A
Class PT2-II-6B            (7)         $                         N/A                    N/A                 N/A
Class PT2-II-7A             (6)         $                  Class PT2-II-IO-7             N/A                 N/A
Class PT2-II-7B            (7)         $                         N/A                    N/A                 N/A
Class PT2-II-8A            (6)         $                  Class PT2-II-IO-8             N/A                 N/A
Class PT2-II-8B            (7)         $                         N/A                    N/A                 N/A
Class PT2-II-9A            (6)         $                  Class PT2-II-IO-9             N/A                 N/A
Class PT2-II-9B            (7)         $                         N/A                    N/A                 N/A
Class PT2-II-10A           (6)         $                  Class PT2-II-IO-10            N/A                 N/A
Class PT2-II-10B           (7)         $                          N/A                    N/A                 N/A
Class PT2-II-11A           (6)         $                  Class PT2-II-IO-11            N/A                 N/A
Class PT2-II-11B           (7)         $                         N/A                     N/A                 N/A
Class PT2-II-12A           (6)         $                  Class PT2-II-IO-12            N/A                 N/A
Class PT2-II-12B           (7)         $                         N/A                    N/A                 N/A
Class PT2-II-13A           (6)         $                  Class PT2-II-IO-13            N/A                 N/A
Class PT2-II-13B           (7)         $                         N/A                    N/A                 N/A
Class PT2-II-14A           (6)         $                  Class PT2-II-IO-14            N/A                 N/A
Class PT2-II-14B           (7)         $                         N/A                    N/A                 N/A
Class PT2-II-15A           (6)         $                  Class PT2-II-IO-15            N/A                  N/A
Class PT2-II-15B           (7)         $                         N/A                    N/A                 N/A
Class PT2-II-16A           (6)         $                  Class PT2-II-IO-16            N/A                 N/A
Class PT2-II-16B           (7)          $                         N/A                    N/A                 N/A
Class PT2-II-17A           (6)         $                  Class PT2-II-IO-17            N/A                 N/A
Class PT2-II-17B           (7)         $                         N/A                     N/A                 N/A
Class PT2-II-18A           (6)         $                  Class PT2-II-IO-18            N/A                 N/A
Class PT2-II-18B           (7)         $                         N/A                    N/A                 N/A
Class PT2-II-19A           (6)         $                  Class PT2-II-IO-19            N/A                 N/A
Class PT2-II-19B           (7)         $                         N/A                    N/A                 N/A
Class PT2-II-20A           (6)         $                  Class PT2-II-IO-20            N/A                 N/A
Class PT2-II-20B           (7)         $                         N/A                    N/A                 N/A
</TABLE>


                                       -13-

<PAGE>


<TABLE>
<CAPTION>

                                        Pooling-Tier        Corresponding        Corresponding        Corresponding
                     Pooling-Tier     REMIC-2 Initial       Pooling-Tier          Pooling-Tier          Scheduled
   Pooling-Tier          REMIC-2          Principal           REMIC-2 IO             REMIC-1             Crossover
  REMIC-2 Interest     Interest Rate         Amount             Interest          Regular Interest    Distribution Date
------------------    -------------    ---------------    -------------------    ----------------    -----------------
<S>                   <C>              <C>                <C>                    <C>                 <C>
Class PT2-II-21A           (6)         $                  Class PT2-II-IO-21            N/A                 N/A
Class PT2-II-21B           (7)         $                         N/A                    N/A                 N/A
Class PT2-II-22A           (6)         $                  Class PT2-II-IO-22            N/A                 N/A
Class PT2-II-22B           (7)         $                          N/A                    N/A                 N/A
Class PT2-II-23A           (6)         $                  Class PT2-II-IO-23            N/A                 N/A
Class PT2-II-23B           (7)         $                         N/A                    N/A                  N/A
Class PT2-II-24A           (6)         $                  Class PT2-II-IO-24            N/A                 N/A
Class PT2-II-24B           (7)         $                         N/A                    N/A                 N/A
Class PT2-II-25A           (6)          $                  Class PT2-II-IO-25            N/A                 N/A
Class PT2-II-25B           (7)         $                         N/A                    N/A                 N/A
Class PT2-II-26A           (6)         $                  Class PT2-II-IO-26             N/A                 N/A
Class PT2-II-26B           (7)         $                         N/A                    N/A                 N/A
Class PT2-II-27A           (6)         $                  Class PT2-II-IO-27            N/A                 N/A
Class PT2-II-27B           (7)         $                         N/A                    N/A                 N/A
Class PT2-II-28A           (6)         $                  Class PT2-II-IO-28            N/A                 N/A
Class PT2-II-28B           (7)         $                          N/A                    N/A                 N/A
Class PT2-II-29A           (6)         $                  Class PT2-II-IO-29            N/A                 N/A
Class PT2-II-29B           (7)         $                         N/A                    N/A                  N/A
Class PT2-II-30A           (6)         $                  Class PT2-II-IO-30            N/A                 N/A
Class PT2-II-30B           (7)         $                         N/A                    N/A                 N/A
Class PT2-II-31A           (6)         $                  Class PT2-II-IO-31            N/A                 N/A
Class PT2-II-31B           (7)         $                         N/A                    N/A                 N/A
Class PT2-II-32A           (6)         $                  Class PT2-II-IO-32            N/A                 N/A
Class PT2-II-32B           (7)         $                         N/A                    N/A                 N/A
Class PT2-II-33A           (6)         $                  Class PT2-II-IO-33            N/A                 N/A
Class PT2-II-33B           (7)         $                         N/A                    N/A                 N/A
Class PT2-II-34A           (6)         $                  Class PT2-II-IO-34            N/A                 N/A
Class PT2-II-34B           (7)         $                          N/A                    N/A                 N/A
Class PT2-II-35A           (6)         $                  Class PT2-II-IO-35            N/A                 N/A
Class PT2-II-35B           (7)         $                         N/A                    N/A                  N/A
Class PT2-II-36A           (6)         $                  Class PT2-II-IO-36            N/A                 N/A
Class PT2-II-36B           (7)         $                         N/A                    N/A                 N/A
Class PT2-II-37A            (6)         $                  Class PT2-II-IO-37            N/A                 N/A
Class PT2-II-37B           (7)         $                         N/A                    N/A                 N/A
Class PT2-II-38A           (6)         $                  Class PT2-II-IO-38            N/A                 N/A
Class PT2-II-38B           (7)         $                         N/A                    N/A                 N/A
Class PT2-II-39A           (6)         $                  Class PT2-II-IO-39            N/A                 N/A
Class PT2-II-39B           (7)         $                         N/A                    N/A                 N/A
Class PT2-II-40A           (6)         $                  Class PT2-II-IO-40            N/A                 N/A
Class PT2-II-40B           (7)         $                          N/A                    N/A                 N/A
Class PT2-II-41A           (6)         $                  Class PT2-II-IO-41            N/A                 N/A
Class PT2-II-41B           (7)         $                         N/A                    N/A                 N/A
</TABLE>


                                      -14-

<PAGE>


<TABLE>
<CAPTION>

                                       Pooling-Tier        Corresponding        Corresponding        Corresponding
                     Pooling-Tier     REMIC-2 Initial       Pooling-Tier          Pooling-Tier          Scheduled
   Pooling-Tier          REMIC-2          Principal           REMIC-2 IO             REMIC-1             Crossover
  REMIC-2 Interest     Interest Rate         Amount             Interest           Regular Interest    Distribution Date
------------------    -------------    ---------------    -------------------    ----------------    -----------------
<S>                   <C>              <C>                <C>                    <C>                 <C>
Class PT2-II-42A           (6)         $                  Class PT2-II-IO-42            N/A                 N/A
Class PT2-II-42B           (7)         $                         N/A                    N/A                 N/A
Class PT2-II-43A           (6)         $                   Class PT2-II-IO-43            N/A                 N/A
Class PT2-II-43B           (7)         $                         N/A                    N/A                 N/A
Class PT2-II-44A           (6)         $                  Class PT2-II-IO-44            N/A                 N/A
Class PT2-II-44B           (7)         $                         N/A                    N/A                 N/A
Class PT2-II-45A           (6)         $                  Class PT2-II-IO-45            N/A                 N/A
Class PT2-II-45B            (7)         $                         N/A                    N/A                 N/A
Class PT2-II-46A           (6)         $                  Class PT2-II-IO-46            N/A                 N/A
Class PT2-II-46B           (7)         $                         N/A                    N/A                 N/A
Class PT2-II-47A           (6)         $                  Class PT2-II-IO-47            N/A                 N/A
Class PT2-II-47B           (7)         $                         N/A                    N/A                 N/A
Class PT2-II-48A           (6)         $                  Class PT2-II-IO-48            N/A                 N/A
Class PT2-II-48B           (7)         $                         N/A                    N/A                 N/A
Class PT2-II-49A           (6)         $                   Class PT2-II-IO-49            N/A                 N/A
Class PT2-II-49B           (7)         $                         N/A                    N/A                 N/A
Class PT2-II-50A           (6)         $                  Class PT2-II-IO-50            N/A                 N/A
Class PT2-II-50B           (7)         $                         N/A                    N/A                 N/A
Class PT2-II-51A           (6)         $                  Class PT2-II-IO-51            N/A                 N/A
Class PT2-II-51B            (7)         $                         N/A                    N/A                 N/A
Class PT2-II-52A           (6)         $                  Class PT2-II-IO-52            N/A                 N/A
Class PT2-II-52B           (7)         $                          N/A                    N/A                 N/A
Class PT2-II-53A           (6)         $                  Class PT2-II-IO-53            N/A                 N/A
Class PT2-II-53B           (7)         $                         N/A                    N/A                 N/A
Class PT2-II-54A           (6)         $                  Class PT2-II-IO-54            N/A                 N/A
Class PT2-II-54B           (7)         $                         N/A                    N/A                 N/A
Class PT2-II-55A           (6)         $                  Class PT2-II-IO-55            N/A                 N/A
Class PT2-II-55B           (7)         $                         N/A                    N/A                 N/A
Class PT2-II-56A           (6)         $                  Class PT2-II-IO-56             N/A                 N/A
Class PT2-II-56B           (7)         $                         N/A                    N/A                 N/A
Class PT2-II-57A           (6)         $                  Class PT2-II-IO-57            N/A                 N/A
Class PT2-II-57B           (7)         $                         N/A                    N/A                 N/A
Class PT2-II-IO-2          (4)               (4)                 N/A             Class PT1-II-2A
Class PT2-II-IO-3          (4)               (4)                 N/A              Class PT1-II-3A
Class PT2-II-IO-4          (4)               (4)                 N/A             Class PT1-II-4A
Class PT2-II-IO-5          (4)               (4)                 N/A             Class PT1-II-5A
Class PT2-II-IO-6          (4)               (4)                  N/A             Class PT1-II-6A
Class PT2-II-IO-7          (4)               (4)                 N/A             Class PT1-II-7A
Class PT2-II-IO-8          (4)               (4)                 N/A             Class PT1-II-8A
Class PT2-II-IO-9           (4)               (4)                 N/A             Class PT1-II-9A
Class PT2-II-IO-10         (4)               (4)                 N/A             Class PT1-II-10A
Class PT2-II-IO-11         (4)               (4)                 N/A             Class PT1-II-11A
</TABLE>


                                      -15-

<PAGE>


<TABLE>
<CAPTION>

                                       Pooling-Tier        Corresponding        Corresponding        Corresponding
                     Pooling-Tier     REMIC-2 Initial       Pooling-Tier          Pooling-Tier          Scheduled
   Pooling-Tier          REMIC-2          Principal           REMIC-2 IO             REMIC-1             Crossover
  REMIC-2 Interest     Interest Rate         Amount             Interest          Regular Interest    Distribution Date
------------------    -------------    ---------------    -------------------    ----------------    -----------------
<S>                   <C>              <C>                <C>                    <C>                 <C>
Class PT2-II-IO-12          (4)               (4)                 N/A             Class PT1-II-12A
Class PT2-II-IO-13         (4)               (4)                 N/A             Class PT1-II-13A
Class PT2-II-IO-14         (4)               (4)                 N/A             Class PT1-II-14A
Class PT2-II-IO-15         (4)               (4)                 N/A             Class PT1-II-15A
Class PT2-II-IO-16         (4)               (4)                 N/A             Class PT1-II-16A
Class PT2-II-IO-17         (4)               (4)                 N/A              Class PT1-II-17A
Class PT2-II-IO-18         (4)               (4)                 N/A             Class PT1-II-18A
Class PT2-II-IO-19         (4)               (4)                 N/A             Class PT1-II-19A
Class PT2-II-IO-20         (4)                (4)                 N/A             Class PT1-II-20A
Class PT2-II-IO-21         (4)               (4)                 N/A             Class PT1-II-21A
Class PT2-II-IO-22         (4)               (4)                 N/A             Class PT1-II-22A
Class PT2-II-IO-23         (4)               (4)                 N/A             Class PT1-II-23A
Class PT2-II-IO-24         (4)               (4)                 N/A             Class PT1-II-24A
Class PT2-II-IO-25         (4)               (4)                 N/A             Class PT1-II-25A
Class PT2-II-IO-26         (4)               (4)                 N/A             Class PT1-II-26A
Class PT2-II-IO-27         (4)               (4)                 N/A             Class PT1-II-27A
Class PT2-II-IO-28         (4)               (4)                  N/A             Class PT1-II-28A
Class PT2-II-IO-29         (4)               (4)                 N/A             Class PT1-II-29A
Class PT2-II-IO-30         (4)               (4)                 N/A             Class PT1-II-30A
Class PT2-II-IO-31         (4)                (4)                 N/A             Class PT1-II-31A
Class PT2-II-IO-32         (4)               (4)                 N/A             Class PT1-II-32A
Class PT2-II-IO-33         (4)               (4)                 N/A             Class PT1-II-33A
Class PT2-II-IO-34         (4)               (4)                 N/A             Class PT1-II-34A
Class PT2-II-IO-35         (4)               (4)                 N/A             Class PT1-II-35A
Class PT2-II-IO-36         (4)               (4)                 N/A              Class PT1-II-36A
Class PT2-II-IO-37         (4)               (4)                 N/A             Class PT1-II-37A
Class PT2-II-IO-38         (4)               (4)                 N/A             Class PT1-II-38A
Class PT2-II-IO-39         (4)               (4)                 N/A             Class PT1-II-39A
Class PT2-II-IO-40         (4)               (4)                 N/A             Class PT1-II-40A
Class PT2-II-IO-41         (4)               (4)                 N/A             Class PT1-II-41A
Class PT2-II-IO-42          (4)               (4)                 N/A             Class PT1-II-42A
Class PT2-II-IO-43         (4)               (4)                 N/A             Class PT1-II-43A
Class PT2-II-IO-44         (4)               (4)                 N/A             Class PT1-II-44A
Class PT2-II-IO-45         (4)               (4)                 N/A             Class PT1-II-45A
Class PT2-II-IO-46         (4)               (4)                 N/A             Class PT1-II-46A
Class PT2-II-IO-47         (4)               (4)                 N/A             Class PT1-II-47A
Class PT2-II-IO-48         (4)               (4)                 N/A             Class PT1-II-48A
Class PT2-II-IO-49         (4)               (4)                 N/A             Class PT1-II-49A
Class PT2-II-IO-50         (4)                (4)                 N/A             Class PT1-II-50A
Class PT2-II-IO-51         (4)               (4)                 N/A             Class PT1-II-51A
Class PT2-II-IO-52         (4)               (4)                 N/A             Class PT1-II-52A
Class PT2-II-IO-53         (4)               (4)                 N/A             Class PT1-II-53A
</TABLE>



                                      -16-

<PAGE>

<TABLE>
<CAPTION>

                                       Pooling-Tier        Corresponding        Corresponding        Corresponding
                     Pooling-Tier     REMIC-2 Initial       Pooling-Tier          Pooling-Tier          Scheduled
   Pooling-Tier          REMIC-2          Principal           REMIC-2 IO             REMIC-1             Crossover
  REMIC-2 Interest     Interest Rate         Amount             Interest          Regular Interest    Distribution Date
------------------    -------------    ---------------    -------------------    ----------------    -----------------
<S>                   <C>              <C>                 <C>                    <C>                 <C>
Class PT2-II-IO-54         (4)               (4)                 N/A             Class PT1-II-54A
Class PT2-II-IO-55         (4)               (4)                 N/A             Class PT1-II-55A
Class PT2-II-IO-56         (4)               (4)                 N/A             Class PT1-II-56A
Class PT2-II-IO-57         (4)               (4)                 N/A             Class PT1-II-57A
Class PT2-R                (8)               (8)                 N/A                     N/A                 N/A

</TABLE>

----------

(1)   For any Distribution Date (and the related Interest Accrual Period), this
     Pooling-Tier REMIC-2 Regular Interest shall bear interest at a per annum
     rate (its "Pooling-Tier REMIC-2 Interest Rate") equal to the Pooling-Tier
     REMIC-1 Loan Group I WAC Rate.

(2)   For any Distribution Date (and the related Interest Accrual Period), this
     Pooling-Tier REMIC-2 Regular Interest shall bear interest at a per annum
     rate (its "Pooling-Tier REMIC-2 Interest Rate") equal to the weighted
     average of the Pooling-Tier REMIC-1 Interest Rates on the Pooling-Tier
     REMIC-1 Regular Interests relating to the Group I Mortgage Loans and having
     an "A" in their class designation, provided that, on each Distribution Date
     on which interest is distributable on the Corresponding Pooling-Tier
     REMIC-2 IO Interest, this Pooling-Tier REMIC-2 Regular Interest shall bear
     interest at a per annum rate equal to Swap LIBOR subject to a maximum rate
     equal to the weighted average of the Pooling-Tier REMIC-1 Interest Rates on
     the Pooling-Tier REMIC-1 Regular Interests relating to the Group I Mortgage
     Loans and having an "A" in their class designation.

(3)   For any Distribution Date (and the related Interest Accrual Period), this
     Pooling-Tier REMIC-2 Regular Interest shall bear interest at a per annum
     rate (its "Pooling-Tier REMIC-2 Interest Rate") equal to the weighted
     average of the Pooling-Tier REMIC-1 Interest Rates on the Pooling-Tier
     REMIC-1 Regular Interests relating to the Group I Mortgage Loans and having
     a "B" in their class designation.

(4)   Each Pooling-Tier REMIC-2 IO Interest is an interest-only interest and does
     not have a principal balance but has a notional balance ("Pooling-Tier
     REMIC-2 IO Notional Balance") equal to the Pooling-Tier REMIC-1 Principal
     Amount of the Corresponding Pooling-Tier REMIC-1 Regular Interest. From the
     Closing Date through and including the Corresponding Actual Crossover
     Distribution Date, each Pooling-Tier REMIC-2 IO Interest shall be entitled
     to receive interest that accrues on the Corresponding Pooling-Tier REMIC-1
     Regular Interest at a rate equal to the excess, if any, of (i) the
      Pooling-Tier REMIC-1 Interest Rate for the Corresponding Pooling-Tier
     REMIC-1 Regular Interest over (ii) Swap LIBOR. After the related
     Corresponding Actual Crossover Distribution Date, the Pooling-Tier REMIC-2
     IO Interest shall not accrue interest.

(5)   For any Distribution Date (and the related Interest Accrual Period), this
     Pooling-Tier REMIC-2 Regular Interest shall bear interest at a per annum
     rate (its "Pooling-Tier REMIC-2 Interest Rate") equal to the Pooling-Tier
     REMIC-1 Loan Group II WAC Rate.

(6)   For any Distribution Date (and the related Interest Accrual Period), this
     Pooling-Tier REMIC-2 Regular Interest shall bear interest at a per annum
     rate (its "Pooling-Tier REMIC-2 Interest Rate") equal to the weighted
     average of the Pooling-Tier REMIC-1 Interest Rates on the Pooling-Tier
     REMIC-1 Regular Interests relating to the Group II Mortgage Loans and
     having an "A" in their class designation, provided that, on each
     Distribution Date on which interest is distributable on the Corresponding
     Pooling-Tier REMIC-2 IO Interest, this Pooling-Tier REMIC-2 Regular
     Interest shall bear interest at a per annum rate equal to Swap LIBOR
     subject to a maximum rate equal to the weighted average of the Pooling-Tier
     REMIC-1 Interest Rates on the Pooling-Tier REMIC-1 Regular Interests
     relating to the Group II Mortgage Loans and having an "A" in their class
     designation.

(7)   For any Distribution Date (and the related Interest Accrual Period), this
     Pooling-Tier REMIC-2 Regular Interest shall bear interest at a per annum
     rate (its "Pooling-Tier REMIC-2 Interest Rate") equal to the weighted
     average of the Pooling-Tier REMIC-1 Interest Rates on the Pooling-Tier
     REMIC-1 Regular Interests relating to the Group II Mortgage Loans and
     having a "B" in their class designation.

(8)   The Class PT2-R Interest shall not have a principal balance and shall not
     bear interest.


                                       -17-

<PAGE>


            On each Distribution Date, the interest distributable in respect of
the Mortgage Loans for such Distribution Date shall be distributed to the
Pooling-Tier REMIC-2 Regular Interests at the Pooling-Tier REMIC-2 Interest
Rates shown above.

            On each Distribution Date, Realized Losses, Subsequent Recoveries
and payments of principal in respect of the Group I Mortgage Loans shall be
allocated to the then outstanding Pooling-Tier REMIC-2 Regular Interests (other
than the Pooling-Tier REMIC-2 IO Interests) relating to the Group I Mortgage
Loans with the lowest numerical denomination until the Pooling-Tier REMIC-2
Principal Amount of such interest is reduced to zero, provided that, for
Pooling-Tier REMIC-2 Regular Interests relating to the Group I Mortgage Loans
with the same numerical denomination, such Realized Losses, Subsequent
Recoveries and payments of principal shall be allocated pro rata between such
Pooling-Tier REMIC-2 Regular Interests, until the Pooling-Tier REMIC-2 Principal
Amount of such interests is reduced to zero.

            On each Distribution Date, Realized Losses, Subsequent Recoveries
and payments of principal in respect of the Group II Mortgage Loans to the
outstanding Pooling-Tier REMIC-2 Regular Interests (other than the Pooling-Tier
REMIC-2 IO Interests) relating to the Group II Mortgage Loans with the lowest
numerical denomination until the Pooling-Tier REMIC-2 Principal Amount of such
interest is reduced to zero, provided that, for Pooling-Tier REMIC-2 Regular
Interests relating to the Group II Mortgage Loans with the same numerical
denomination, such Realized Losses, Subsequent Recoveries and payments of
principal shall be allocated pro rata between such Pooling-Tier REMIC-2 Regular
Interests until the Pooling-Tier REMIC-2 Principal Amount of such interests is
reduced to zero.


                                      -18-

<PAGE>


                                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 Certificates.

<TABLE>
<CAPTION>


                      Lower Tier                                          Corresponding
Lower Tier REMIC     REMIC Interest           Initial Lower Tier           Upper Tier REMIC
Class Designation         Rate               REMIC Principal Amount         Regular Interest
-----------------    --------------    -------------------------------     ----------------
<S>                  <C>               <C>                                 <C>
Class LT-A-1A             (1)           1/4 Corresponding Upper Tier              A-1A
                                     REMIC 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-2A             (1)          1/4 Corresponding Upper Tier              A-2A
                                     REMIC 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)          1/4 Corresponding Upper Tier              M-1
                                     REMIC Regular Interest initial
                                     Class Principal Balance
Class LT-M-2              (1)          1/4 Corresponding Upper Tier              M-2
                                     REMIC Regular Interest initial
                                     Class Principal Balance
Class LT-M-3              (1)          1/4 Corresponding Upper Tier              M-3
                                      REMIC Regular Interest initial
                                     Class Principal Balance
Class LT-B-1              (1)          1/4 Corresponding Upper Tier              B-1
                                     REMIC Regular Interest initial
                                     Class Principal Balance
Class LT-B-2              (1)          1/4 Corresponding Upper Tier              B-2
                                     REMIC Regular Interest initial
                                      Class Principal Balance
Class LT-B-3              (1)          1/4 Corresponding Upper Tier              B-3
                                     Regular Interest initial
                                     Class Principal Balance
Class LT-B-4               (1)          1/4 Corresponding Upper Tier              B-4
                                     REMIC Regular Interest initial
                                     Class Principal Balance
</TABLE>


                                      -19-

<PAGE>

<TABLE>
<CAPTION>


                      Lower Tier                                          Corresponding
Lower Tier REMIC     REMIC Interest           Initial Lower Tier           Upper Tier REMIC
Class Designation         Rate              REMIC Principal Amount         Regular Interest
-----------------    --------------    -------------------------------     ----------------
<S>                  <C>               <C>                                 <C>

Class LT-Accrual          (1)          __ Pool Stated Principal Balance          N/A
                                     plus __ Subordinated Amount
Class LT-                 (1)          __% initial Group Subordinate             N/A
Group I(SUB)                          Amount of the Group I Mortgage
                                      Loans (6)
Class LT-                 (2)          __% initial aggregate Stated              N/A
Group I                               Principal Balance of the Group I
                                     Mortgage Loans (6)
Class LT-                  (1)          __% initial Group Subordinate             N/A
Group II(SUB)                         Amount of the Group II Mortgage
                                     Loans (6)
Class LT-                 (3)          __% initial aggregate Stated              N/A
Group II                              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
</TABLE>

----------
(1)   The interest rate with respect to any Distribution Date for these interests
     is a per annum variable rate equal to the Lower Tier REMIC WAC Cap.

(2)   The interest rate with respect to any Distribution Date for the Class
     LT-Group I Interest is a per annum variable rate (expressed as a percentage
     rounded to eight decimal places) equal to the weighted average of the
      pooling-Tier REMIC-2 Interest Rates of the Pooling-Tier REMIC-2 Regular
     Interests (other than the Pooling-Tier REMIC-2 IO Interests) relating to
     the Group I Mortgage Loans.

(3)   The interest rate with respect to any Distribution Date for the Class
     LT-Group II Interest is a per annum variable rate (expressed as a
     percentage rounded to eight decimal places) equal to the weighted average
     of the Pooling-Tier REMIC-2 Interest Rates of the Pooling-Tier REMIC-2
     Regular Interests (other than the Pooling-Tier REMIC-2 IO Interests)
     relating to the Group II Mortgage Loans.

(4)   This Lower-Tier Regular Interest is an interest-only interest and does not
     have a Lower-Tier REMIC Principal Amount. On each Distribution Date, this
      Lower-Tier Regular Interest shall be entitled to receive all interest
     distributable on the Pooling-Tier REMIC-2 IO Interests.

(5)   The Class LT-R Interest is the sole class of residual interest in the Lower
     Tier REMIC and it does not have a principal amount or an interest rate.


                                      -20-

<PAGE>


(6)   For all Distribution Dates, the Lower Tier Principal Amount of these Lower
     Tier REMIC Regular Interests shall be rounded to eight decimal places.

             Each Lower Tier REMIC Regular Interest is hereby designated as a
regular interest in the Lower Tier REMIC. The Class LT-A-1A, Class LT-A-1B,
Class LT-A-2A, Class LT-A-2B, Class LT-A-2C, Class LT-M-1, Class LT-M-2, Class
LT-M-3, Class LT-B-1, Class LT-B-2, Class LT-B-3 and Class LT-B-4 Interests are
hereby designated the LT Accretion Directed Classes (the "LT Accretion Directed
Classes").

            On each Distribution Date, __% of the increase in the Subordinated
Amount shall be payable as a reduction of the Lower Tier REMIC Principal Amount
of the LT Accretion Directed Classes (each such Class will be reduced by an
amount equal to __% of any increase in the Subordinated Amount that is
attributable to a reduction in the Class Certificate Balance of its
Corresponding Class) and shall be accrued and added to the Lower Tier REMIC
Principal Amount of the Class LT-Accrual Interest. On each Distribution Date,
the increase in the Lower Tier REMIC Principal Amount of the Class LT-Accrual
Interest may not exceed interest accruals for such Distribution Date for the
Class LT-Accrual Interest. All payments of scheduled principal and prepayments
of principal generated by the Mortgage Loans and all Subsequent Recoveries
allocable to principal shall be allocated (i) __% to the Class LT-Accrual
Interest, (ii) __% to the LT Accretion Directed Classes (such principal payments
and Subsequent Recoveries shall be allocated among such LT Accretion Directed
Classes in an amount equal to __% of the principal amounts and Subsequent
Recoveries allocated to their respective Corresponding Classes), until paid in
full and (iii) __% to Class LT-Group I(SUB) Interest, Class LT-Group I Interest,
Class LT-Group II(SUB) Interest, Class LT-Group II Interest and Class LT-XX
Interest (and further allocated among these Lower Tier REMIC Regular Interests
in the manner described in the next sentence). As among the Class LT-Group
I(SUB) Interest, Class LT-Group I Interest, Class LT-Group II(SUB) Interest,
Class LT-Group II Interest and Class LT-XX Interest, all payments of scheduled
principal and prepayments of principal generated by the Mortgage Loans and
Subsequent Recoveries referred to in clause (iii) of the previous sentence shall
be allocated (i) first, to the Class LT-Group I(SUB) Interest, and Class
LT-Group II(SUB) Interest, each from the related Loan Group, so that their
respective Lower Tier REMIC Principal Amount (computed to at least eight decimal
places) is equal to __% of the related Group Subordinate Amount (except that if
any such amount is a larger number than in the preceding distribution period,
the least amount of principal shall be distributed to the Class LT-Group I(SUB)
Interest and Class LT-Group II(SUB) Interest, as applicable, such that the Lower
Tier REMIC Subordinated Balance Ratio is maintained); (ii) second, to the Class
LT-Group I Interest and the Class LT-Group II Interest __% of the principal
collected in respect of the related Loan Group; and (iii) third, any remaining
amounts of principal shall be distributed to the Class LT-XX Interest.
Notwithstanding the above, principal payments allocated to the Class X Interest
that result in the reduction in the Subordinated Amount shall be allocated (i)
__% to the Class LT-Accrual Interest (until paid in full) and (ii) __% to the
Class LT-Group I(SUB) Interest, the Class LT-Group II(SUB) Interest, the Class
LT-Group I Interest, the Class LT-Group II Interest and the Class LT-XX Interest
(and allocated among these Lower Tier REMIC Regular Interests in a manner
similar to that described in the immediately preceding sentence).


                                      -21-

<PAGE>


            Reductions to Lower Tier REMIC Principal Amounts as a result of
Realized Losses and increases in Lower Tier REMIC Principal Amounts as a result
of Subsequent Recoveries shall be applied so that after all distributions have
been made on each Distribution Date (i) the Lower Tier REMIC Principal Amount of
each LT Accretion Directed Class is equal to __% of the Class Certificate
Balance of its Corresponding Class, (ii) the Class LT-Accrual Interest is equal
to __% of the aggregate Stated Principal Balance of the Mortgage Loans plus __%
of the Subordinated Amount, (iii) the Class LT-Group I(SUB) Interest is equal to
__% of the Group Subordinate Amount of the Group I Mortgage Loans, (iv) the
Class LT-Group II(SUB) Interest is equal to __% of the Group Subordinate Amount
of the Group II Mortgage Loans, (v) the Class LT-Group I Interest is equal to
0.01% of the aggregate Stated Principal Balance of the Group I Mortgage Loans,
(vi) the Class LT-Group II Interest is equal to __% of the aggregate Stated
Principal Balance of the Group II Mortgage Loans and (vii) the remainder shall
be applied to the Class LT-XX Interest.

                                Upper-Tier REMIC


            The Upper Tier REMIC shall issue the following classes of Upper Tier
REMIC Regular Interests and each such interest, other than the Class UT-R
Interest, is hereby designated as a regular interest in the Upper Tier REMIC.
The Class UT-R Interest is hereby designated as the sole class of residual
interests in the Upper Tier REMIC and shall be represented by the Class R
Certificates.
<TABLE>
<CAPTION>


                                        Initial Upper Tier
  Upper Tier REMIC     Upper Tier REMIC     REMIC Principal          Corresponding
Class Designation      Interest Rate           Amount           Class of Certificates
-----------------     ----------------    -------------------    ---------------------
<S>                    <C>                 <C>                    <C>
Class A-1A                  (1)           $                           Class A-1A
Class A-1B                  (1)           $                           Class A-1B
Class A-2A                  (2)           $                            Class A-2A
Class A-2B                  (2)           $                           Class A-2B
Class A-2C                  (2)           $                           Class A-2C
Class M-1                   (3)           $                           Class M-1
Class M-2                   (3)           $                           Class M-2
Class M-3                   (3)           $                           Class M-3
Class B-1                   (3)           $                           Class B-1
Class B-2                   (3)            $                           Class B-2
Class B-3                   (3)           $                           Class B-3
Class B-4                   (3)           $                           Class B-4
Class IO                    (4)                  (4)
Class X                      (5)           $                           Class X(5)
Class UT-R                  (6)           $                           Class R

</TABLE>

----------

(1)   For any Distribution Date (and the related Interest Accrual Period), this
     interest shall bear interest at the lesser of (i) the Pass-Through Rate
     (determined without regard to the Group I Loan Cap) for the Corresponding
     Class of Certificates and (ii) the Lower-Tier Interest Rate for the Class
     LT-Group I Interest (the "Upper-Tier REMIC Loan Group I Rate").

(2)   For any Distribution Date (and the related Interest Accrual Period), this
     interest shall bear interest at the lesser of (i) the Pass-Through Rate
     (determined without regard to the Group II Loan Cap) for the Corresponding
     Class


                                      -22-

<PAGE>


     of Certificates and (ii) the Lower-Tier Interest Rate for the Class
     LT-Group II Interest (the "Upper-Tier REMIC Loan Group II Rate").

(3)   For any Distribution Date (and the related Interest Accrual Period), this
     interest shall bear interest at the lesser of (i) the Pass-Through Rate
     (determined without regard to the applicable WAC Cap) for the Corresponding
     Class of Certificates and (ii) the Upper-Tier REMIC Pool Cap Rate.

(4)   This interest is an interest-only interest and does not have a principal
     balance. On each Distribution Date, the Class IO Interest shall be entitled
     to receive all interest distributable on the Class LT-IO Interest. This
     interest shall be beneficially owned by the holders of the Class X
     Certificates and shall be held as an asset of the Swap Account.

(5)   The Class X Interest has an initial principal balance of $[________] but it
     will not accrue interest on such balance but will accrue interest on a
     notional principal balance. As of any Distribution Date, the Class X
     Interest shall have a notional principal balance equal to the aggregate of
     the Lower Tier Principal Amounts of the Lower Tier REMIC Regular Interests
     (other than the Class LT-IO Interest) as of the first day of the related
     Interest Accrual Period. With respect to any Interest Accrual Period, the
     Class X Interest shall bear interest at a rate equal to the excess, if any,
     of the Lower Tier REMIC WAC Cap over the product of (i) 2 and (ii) the
     weighted average Lower Tier REMIC Interest Rate of the Lower Tier REMIC
     Regular Interests (other than Class LT-Group I(SUB), Class LT-Group I,
     Class LT-Group II(SUB), Class LT-Group II, Class LT-XX and Class LT-IO
     Interests), where the Lower Tier REMIC Interest Rate on the Class
     LT-Accrual Interest is subject to a cap equal to zero and each LT-Accretion
     Directed Class is subject to a cap equal to the Upper Tier Interest Rate on
     its Corresponding Class of Upper Tier Regular Interest. With respect to any
     Distribution Date, interest that so accrues on the notional principal
     balance of the Class X Interest shall be deferred in an amount equal to any
     increase in the Subordinated Amount on such Distribution Date. Such
     deferred interest shall not itself bear interest.

(6)   The Class UT-R Interest does not have an interest rate or a principal
     balance.

            On each Distribution Date, interest distributable in respect of the
Lower-Tier Interests for such Distribution Date shall be deemed to be
distributed on the interests in the Upper-Tier REMIC at the rates shown above,
provided that the Class IO Interest shall be entitled to receive interest before
any other interest in the Upper-Tier REMIC.

            On each Distribution Date, all Realized Losses, Subsequent
Recoveries and all payments of principal shall be allocated to the Upper-Tier
Interests until the outstanding principal balance of each such interest equals
the outstanding Class Certificate Balance of the Corresponding Class of
Certificates as of such Distribution Date.

                                  Certificates


                    Class Pass-Through    Class Certificate
Class Designation           Rate                Balance
-----------------    ------------------    -----------------
Class A-1A(8)                (1)           $
Class A-1B(8)                (1)           $
Class A-2A(8)                (2)            $
Class A-2B(8)                (3)           $
Class A-2C(8)                (4)           $
Class M-1(8)                 (5)           $
Class M-2(8)                 (5)           $
Class M-3(8)                 (5)           $
Class B-1(8)                 (5)            $
Class B-2(8)                 (5)           $


                                      -23-

<PAGE>


                    Class Pass-Through    Class Certificate
Class Designation           Rate                Balance
-----------------    ------------------    -----------------
Class B-3(8)                 (5)           $
Class B-4(8)                 (5)           $
Class X                      (6)                  (6)
Class R                      (7)           $

----------

(1)   The Class A-1A and Class A-1B Certificates will bear interest during each
     Interest Accrual Period at a per annum rate equal to the lesser of (i)
     LIBOR plus the applicable Pass-Through Margin and (ii) the Group I Loan
     Cap.

(2)   The Class A-2A Certificates will bear interest during each Interest Accrual
     Period at a per annum rate equal to the lesser of (i) LIBOR plus the
     applicable Pass-Through Margin and (ii) the Group II Loan Cap.

(3)   The Class A-2B Certificates will bear interest during each Interest Accrual
      Period at a per annum rate equal to the lesser of (i) LIBOR plus the
     applicable Pass-Through Margin and (ii) the Group II Loan Cap.

(4)   The Class A-2C Certificates will bear interest during each Interest Accrual
     Period at a per annum rate equal to the lesser of (i) LIBOR plus the
     applicable Pass-Through Margin and (ii) the Group II Loan Cap.

(5)   The Class M-1, Class M-2, Class M-3, Class B-1, Class B-2, Class B-3 and
     Class B-4 Certificates will bear interest during each Interest Accrual
     Period at a per annum rate equal to the lesser of (i) LIBOR plus the
     applicable Pass-Through Margin and (ii) the Pool Cap.

(6)   The Class X Certificates will represent beneficial ownership of the Class X
     Interest, the Class IO Interest, the right to receive Class IO Shortfalls,
     the Cap Agreements, amounts in the Swap Account, subject to the obligation
     to pay Net Swap Payments and Upper Tier Carry Forward Amounts and, without
     duplication, Basis Risk Carry Forward Amounts and amounts in the Excess
     Reserve Fund Account, subject to the obligation to make payments from the
     Excess Reserve Fund Account in respect of Basis Risk Carry Forward Amounts.
     For federal income tax purposes, the Securities Administrator will treat a
     Class X Certificateholder's obligation to make payments of Upper Tier Carry
     Forward Amounts and, without duplication, Basis Risk Carry Forward Amounts
     to the LIBOR Certificates from the Excess Reserve Fund Account and the Swap
     Account to the LIBOR Certificateholders as payments made pursuant to an
     interest rate cap contract written by the Class X Certificateholders in
     favor of each Class of LIBOR Certificates. Such rights of the Class X
     Certificateholders and LIBOR Certificateholders shall be treated as held in
     a portion of the Trust Fund that is treated as a grantor trust under
     subpart E, Part I of subchapter J of the Code. The Class X Certificates do
     not have a Class Certificate Balance.

(7)   The Class R Certificates do not have a principal balance or an interest
     rate.

(8)   Each of these Certificates will represent not only the ownership of the
     Corresponding Class of Upper Tier REMIC Regular Interest but also the right
     to receive payments from the Excess Reserve Fund Account and Swap Account
     in respect of any Basis Risk Carry Forward Amounts and, without
     duplication, from the Swap Account in respect of Upper Tier Carry Forward
     Amounts. Each of these Certificates will also be subject to the obligation
     to pay Class IO Shortfalls as described in Section 8.13. For federal income
     tax purposes, any amount distributed on the LIBOR Certificates on any such
     Distribution Date in excess of the amount distributable on their
     Corresponding Class of Upper Tier Regular Interest on such Distribution
     Date shall be treated as having been paid from the Excess Reserve Fund
     Account or the Swap Account, as applicable, and any amount distributable on
     such Corresponding Class of Upper Tier Regular Interest on such
     Distribution Date in excess of the amount distributable on the LIBOR
     Certificates on such Distribution Date shall be treated as having been paid
     to the Swap Account, all pursuant to, and as further provided in Section
     8.13. For federal income tax purposes, the Securities Administrator will
     treat a LIBOR Certificateholder's right to receive payments from the Excess
     Reserve Fund Account and Swap Account as payments made pursuant to an
     interest rate cap contract written by the Class X Certificateholders.


                                      -24-

<PAGE>


            The minimum denomination for each Class of Certificates, other than
the Class P, Class R and the Class X Certificates, will be $______ with integral
multiples of $__ in excess thereof except that one Certificate in each Class may
be issued in a different amount. The minimum denomination for each of the Class
P and Class X Certificates will be a __% Percentage Interest in such Class, and
the minimum denomination for the Class R Certificates shall be __% Percentage
Interest in such Class.

            Set forth below are designations of Classes of Certificates to the
categories used herein:

Book-Entry Certificates..............   All Classes of Certificates other
                                       than the Physical Certificates.

Class A Certificates.................   Class A-1A, Class A-1B, Class A-2A,
                                       Class A-2B and Class A-2C Certificates.

Class B Certificates.................   Class B-1, Class B-2, Class B-3 and Class
                                       B-4 Certificates.

Class M Certificates.................   Class M-1, Class M-2 and Class M-3
                                        Certificates.

Delay Certificates...................   None.

ERISA-Restricted
   Certificates......................   Class B-4, Class R, Class P and Class X
                                       Certificates; any certificate with a
                                        rating below the lowest applicable
                                       permitted rating under the Underwriters'
                                       Exemption.

LIBOR Certificates...................   Class A and Subordinated Certificates.

Non-Delay Certificates...............   Class A, Class X and Subordinated
                                       Certificates.

Offered Certificates.................   All Classes of Certificates other than
                                        the Private Certificates.

Physical Certificates................   Class P, Class X and Class R
                                       Certificates.

Private Certificates.................   Class A-1A, Class B-4, Class P, Class X
                                        and Class R Certificates.

Rating Agencies......................   Moody's, Fitch, Standard & Poor's and
                                       DBRS.

Regular Certificates.................   All Classes of Certificates other than
                                        the Class P and Class R Certificates.

Residual Certificates................   Class R Certificates.

Subordinated Certificates............   Class M and Class B Certificates.


                                      -25-

<PAGE>

                                    ARTICLE I

                                   DEFINITIONS

            Whenever used in this Agreement, the following words and phrases,
unless the context otherwise requires, shall have the following meanings:

            Accepted Servicing Practices: With respect to any Mortgage Loan,
those mortgage servicing practices set forth in Section 3.01(a) of this
Agreement.

            Account: Any of the Collection Account, the Distribution Account,
any Escrow Account, the Swap Account or the Excess Reserve Fund Account. Each
Account shall be an Eligible Account.

            Accrued Certificate Interest Distribution Amount: With respect to
any Distribution Date for each Class of LIBOR Certificates, the amount of
interest accrued during the related Interest Accrual Period at the applicable
Pass-Through Rate on the related Class Certificate Balance immediately prior to
such Distribution Date, as reduced by such Class' share of Net Prepayment
Interest Shortfalls and Relief Act Interest Shortfalls for such Distribution
Date allocated to such Class pursuant to Section 4.02.

            Additional Form 10-D Disclosure: As defined in Section 8.12(b).

            Additional Form 10-K Disclosure: As defined in Section 8.12(c).

            Adjustable Rate Mortgage Loan: An adjustable rate Mortgage Loan.

            Adjusted Net Mortgage Rate: As to each Mortgage Loan and at any
time, the per annum rate equal to the Mortgage Rate less the Expense Fee Rate.

            Adjustment Date: As to any Adjustable Rate Mortgage Loan, the first
Due Date on which the related Mortgage Rate adjusts as set forth in the related
Mortgage Note and each Due Date thereafter on which the Mortgage Rate adjusts as
set forth in the related Mortgage Note.

            Advance: Any P&I Advance or Servicing Advance.

            Advance Facility: A financing or other facility as described in
Section 10.11.

            Advancing Person: The Person to whom the Servicer's rights under
this Agreement to be reimbursed for any P&I Advances or Servicing Advances have
been assigned pursuant to Section 10.11.

            Affiliate: With respect to any Person, any other Person controlling,
controlled by or under common control with such first Person. For the purposes
of this definition, "control" means the power to direct the management and
policies of such Person, directly or indirectly, whether through the ownership
of voting securities, by contract or otherwise; and the terms "controlling" and
"controlled" have meanings correlative to the foregoing.


                                      -26-

<PAGE>


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

            Amount Held for Future Distribution: As to the Certificates on any
Distribution Date, the aggregate amount held in the Collection Account at the
close of business on the related Determination Date on account of (i) Principal
Prepayments, Insurance Proceeds, Condemnation Proceeds, Liquidation Proceeds and
Subsequent Recoveries on the Mortgage Loans received after the end of the
related Prepayment Period and (ii) all Scheduled Payments on the Mortgage Loans
due after the end of the related Due Period.

            Analytics Company: Intex Solutions, Inc., or any other bond
analytics service provider identified to the Securities Administrator by the
Depositor.

            Applied Realized Loss Amount: With respect to any Distribution Date,
the amount, if any, by which the aggregate Class Certificate Balance of the
LIBOR Certificates after distributions of principal on such Distribution Date
exceeds the aggregate Stated Principal Balance of the Mortgage Loans for such
Distribution Date.

            Appraised Value: The value set forth in an appraisal made in
connection with the origination of the related Mortgage Loan as the value of the
Mortgaged Property.

            Assignment of Mortgage: An assignment of the Mortgage, notice of
transfer or equivalent instrument in recordable form (other than the assignee's
name and recording information not yet returned from the recording office),
reflecting the sale of the Mortgage to the Trustee.

            Available Funds: With respect to any Distribution Date and the
Mortgage Loans, to the extent received by the Securities Administrator (x) the
sum of (i) all scheduled installments of interest (net of the related Expense
Fees) and principal due on the Due Date on such Mortgage Loans in the related
Due Period and received by the Servicer on or prior to the related Determination
Date, together with any P&I Advances in respect thereof; (ii) all Condemnation
Proceeds, Insurance Proceeds, Liquidation Proceeds and Subsequent Recoveries
received by the Servicer during the related Prepayment Period (in each case, net
of unreimbursed expenses incurred in connection with a liquidation or
foreclosure and unreimbursed Advances, if any); (iii) all partial or full
prepayments on the Mortgage Loans received by the Servicer during the related
Prepayment Period together with all Compensating Interest paid by the Servicer
in connection therewith (excluding any Prepayment Charges); (iv) all
Substitution Adjustment Amounts with respect to substitutions of Mortgage Loans
that occur on or prior to the related Determination Date; (v) all amounts
received with respect to such Distribution Date as the Repurchase Price in
respect of a Mortgage Loan repurchased on or prior to the related Determination
Date; and (vi) the proceeds with respect to the termination of the Trust Fund
pursuant to clause (a) of Section 9.01; reduced by (y) amounts in reimbursement
for Advances previously made with respect to the Mortgage Loans and other
amounts as to which the Servicer, the Depositor or the Trustee are entitled to
be paid or reimbursed pursuant to this Agreement.

            Balloon Loan: Any Mortgage Loan that requires only payments of
interest until the stated maturity date of the Mortgage Loan or Scheduled
Payments of principal (not including

                                      -27-

<PAGE>


the payment due on its stated maturity date) that are based on an amortization
schedule that would be insufficient to fully amortize the principal thereof by
the stated maturity date of the Mortgage Loan.

            Basic Principal Distribution Amount: With respect to any
Distribution Date, the excess of (i) the Principal Remittance Amount for such
Distribution Date over (ii) the Excess Subordinated Amount, if any, for such
Distribution Date.

            Basis Risk Carry Forward Amount: With respect to each Class of LIBOR
Certificates, as of any Distribution Date, the sum of (A) if on such
Distribution Date the Pass-Through Rate for any Class of LIBOR Certificates is
based upon a Group Loan Cap or the Pool Cap, as applicable, the excess of (i)
the Accrued Certificate Interest Distribution Amount such Class of Certificates
would otherwise be entitled to receive on such Distribution Date had such rate
been calculated as the sum of LIBOR and the applicable Pass-Through Margin on
such Class of Certificates for such Distribution Date, over (ii) the Accrued
Certificate Interest Distribution Amount payable on such Class of Certificates
at, with respect to the Class A-1A and Class A-1B Certificates, the Group I Loan
Cap, with respect to the Class A-2A, Class A-2B and Class A-2C Certificates, the
Group II Loan Cap, and with respect to each other Class of LIBOR Certificates,
the Pool Cap, as applicable, for such Distribution Date and (B) the portion of
any such excess described in clause (A) for such Class of Certificates from all
previous Distribution Dates not previously paid, together with interest thereon
at a rate equal to the sum of LIBOR and the applicable Pass-Through Margin for
such Class of Certificates for such Distribution Date.

            Basis Risk Payment: For any Distribution Date, an amount equal to
the lesser of (i) the aggregate of the Basis Risk Carry Forward Amounts for such
Distribution Date and (ii) the Class X Distributable Amount (prior to any
reduction for amounts paid from the Excess Reserve Fund Account to pay any Basis
Risk Carry Forward Amount or any Swap Termination Payment).

            Best's: Best's Key Rating Guide, as the same shall be amended from
time to time.

            Book-Entry Certificates: As specified in the Preliminary Statement.

            Business Day: Any day other than (i) Saturday or Sunday, or (ii) a
day on which banking and savings and loan institutions, in (a) the State of New
York, ________, ________ or ________, (b) the State in which the Servicer's
servicing operations are located, or (c) any State in which the Corporate Trust
Office is located, are authorized or obligated by law or executive order to be
closed.

            Cap Agreements: The Class M Cap Agreement and the Class B Cap
Agreement.

            Cap Provider: ___________, a ___________, and its successors in
interest.

            Certificate: Any one of the Certificates executed by the Securities
Administrator in substantially the forms attached hereto as exhibits.


                                       -28-

<PAGE>


            Certificate Balance: With respect to any Class of Certificates,
other than the Class X, Class P or Class R Certificates, at any date, the
maximum dollar amount of principal to which the Holder thereof is then entitled
hereunder, such amount being equal to the Denomination thereof minus all
distributions of principal previously made with respect thereto and in the case
of any Certificates, reduced by any Applied Realized Loss Amounts allocated to
such Class of Certificates pursuant to Section 4.05; provided, however, that
immediately following the Distribution Date on which a Subsequent Recovery is
distributed, the Class Certificate Balances of any Class or Classes of
Certificates that have been previously reduced by Applied Realized Loss Amounts
will be increased, in order of seniority, by the amount of the Subsequent
Recovery distributed on such Distribution Date (up to the amount of Unpaid
Realized Loss Amount for such Class or Classes for such Distribution Date). The
Class P, Class X and Class R Certificates have no Certificate Balance.

            Certificate Owner: With respect to a Book-Entry Certificate, the
Person who is the beneficial owner of such Book-Entry Certificate.

            Certificate Register: The register maintained pursuant to Section
5.02.

            Certificateholder or Holder: The Person in whose name a Certificate
is registered in the Certificate Register, except that, solely for the purpose
of giving any consent pursuant to this Agreement, any Certificate registered in
the name of the Depositor or any Affiliate of the Depositor shall be deemed not
to be Outstanding and the Percentage Interest evidenced thereby shall not be
taken into account in determining whether the requisite amount of Percentage
Interests necessary to effect such consent has been obtained; provided, however,
that if any such Person (including the Depositor) owns 100% of the Percentage
Interests evidenced by a Class of Certificates, such Certificates shall be
deemed to be Outstanding for purposes of any provision hereof that requires the
consent of the Holders of Certificates of a particular Class as a condition to
the taking of any action hereunder. The Securities Administrator is entitled to
rely conclusively on a certification of the Depositor or any Affiliate of the
Depositor in determining which Certificates are registered in the name of an
Affiliate of the Depositor.

            Class: All Certificates bearing the same class designation as set
forth in the Preliminary Statement.

            Class A Certificate Group: The Group I Class A Certificates or the
Group II Class A Certificates, as applicable.

            Class A Certificates: As specified in the Preliminary Statement.

            Class A Principal Allocation Percentage: With respect to any
Distribution Date, the percentage equivalent of a fraction, determined as
follows: (A) with respect to the Group I Class A Certificates, a fraction, the
numerator of which is (x) the portion of the Principal Remittance Amount for
such Distribution Date that is attributable to the principal received or
advanced on the Group I Mortgage Loans and the denominator of which is (y) the
Principal Remittance Amount for such Distribution Date; and (B) with respect to
the Group II Class A Certificates, a fraction, the numerator of which is (x) the
portion of the Principal Remittance Amount for such Distribution Date that is
attributable to the principal received or advanced on


                                      -29-

<PAGE>


the Group II Mortgage Loans and the denominator of which is (y) the Principal
Remittance Amount for such Distribution Date.

            Class A Principal Distribution Amount: With respect to any
Distribution Date, the excess of (i) the aggregate Class Certificate Balances of
the Class A Certificates immediately prior to such Distribution Date over (ii)
the lesser of (A) __% of the aggregate Stated Principal Balance of the Mortgage
Loans for such Distribution Date and (B) the excess, if any, of the aggregate
Stated Principal Balance of the Mortgage Loans for such Distribution Date over
$______.

            Class A-1A Certificates: All Certificates bearing the class
designation of "Class A-1A".

            Class A-1B Certificates: All Certificates bearing the class
designation of "Class A-1B".

            Class A-2B Certificates: All Certificates bearing the class
designation of "Class A-2B".

            Class A-2C Certificates: All Certificates bearing the class
designation of "Class A-2C".

            Class B Cap Agreement: The interest rate cap agreement, dated
___________, 200___, between the Cap Provider and the Securities Administrator,
relating to the Class B Certificates, a copy of which is attached hereto as
Exhibit U.

            Class B Certificates: As specified in the Preliminary Statement.

            Class B-1 Certificates: All Certificates bearing the class
designation of "Class B-1".

            Class B-1 Principal Distribution Amount: With respect to any
Distribution Date, the excess of (i) the sum of (A) the aggregate Class
Certificate Balances of the Class A Certificates (after taking into account the
distribution of the Class A Principal Distribution Amount for such Distribution
Date), (B) the Class Certificate Balance of the Class M-1 Certificates (after
taking into account the distribution of the Class M-1 Principal Distribution
Amount for such Distribution Date), (C) the Class Certificate Balance of the
Class M-2 Certificates (after taking into account the distribution of the Class
M-2 Principal Distribution Amount for such Distribution Date), (D) the Class
Certificate Balance of the Class M-3 Certificates (after taking into account the
distribution of the Class M-3 Principal Distribution Amount for such
Distribution Date) and (E) the Class Certificate Balance of the Class B-1
Certificates immediately prior to such Distribution Date over (ii) the lesser of
(A) _____% of the aggregate Stated Principal Balance of the Mortgage Loans for
such Distribution Date and (B) the excess, if any, of the aggregate Stated
Principal Balance of the Mortgage Loans for such Distribution Date over $______.

            Class B-2 Certificates: All Certificates bearing the class
designation of "Class B-2".

                                      -30-

<PAGE>

             Class B-2 Principal Distribution Amount: With respect to any
Distribution Date, the excess of (i) the sum of (A) the aggregate Class
Certificate Balances of the Class A Certificates (after taking into account the
distribution of the Class A Principal Distribution Amount for such Distribution
Date), (B) the Class Certificate Balance of the Class M-1 Certificates (after
taking into account the distribution of the Class M-1 Principal Distribution
Amount for such Distribution Date), (C) the Class Certificate Balance of the
Class M-2 Certificates (after taking into account the distribution of the Class
M-2 Principal Distribution Amount for such Distribution Date), (D) the Class
Certificate Balance of the Class M-3 Certificates (after taking into account the
distribution of the Class M-3 Principal Distribution Amount for such
Distribution Date), (E) the Class Certificate Balance of the Class B-1
Certificates (after taking into account the distribution of the Class B-1
Principal Distribution Amount for such Distribution Date) and (I) the Class
Certificate Balance of the Class B-2 Certificates immediately prior to such
Distribution Date over (ii) the lesser of (A) ____% of the aggregate Stated
Principal Balance of the Mortgage Loans for such Distribution Date and (B) the
excess, if any, of the aggregate Stated Principal Balance of the Mortgage Loans
for such Distribution Date over $3,608,680.

            Class B-3 Certificates: All Certificates bearing the class
designation of "Class B-3".

            Class B-3 Principal Distribution Amount: With respect to any
Distribution Date, the excess of (i) the sum of (A) the aggregate Class
Certificate Balances of the Class A Certificates (after taking into account the
distribution of the Class A Principal Distribution Amount for such Distribution
Date), (B) the Class Certificate Balance of the Class M-1 Certificates (after
taking into account the distribution of the Class M-1 Principal Distribution
Amount for such Distribution Date), (C) the Class Certificate Balance of the
Class M-2 Certificates (after taking into account the distribution of the Class
M-2 Principal Distribution Amount for such Distribution Date), (D) the Class
Certificate Balance of the Class M-3 Certificates (after taking into account the
distribution of the Class M-3 Principal Distribution Amount for such
Distribution Date), (E) the Class Certificate Balance of the Class B-1
Certificates (after taking into account the distribution of the Class B-1
Principal Distribution Amount for such Distribution Date), (I) the Class
Certificate Balance of the Class B-2 Certificates (after taking into account the
distribution of the Class B-2 Principal Distribution Amount for such
Distribution Date) and (J) the Class Certificate Balance of the Class B-3
Certificates immediately prior to such Distribution Date over (ii) the lesser of
(A) ____% of the aggregate Stated Principal Balance of the Mortgage Loans for
such Distribution Date and (B) the excess, if any, of the aggregate Stated
Principal Balance of the Mortgage Loans for such Distribution Date over $______.

            Class B-4 Principal Distribution Amount: With respect to any
Distribution Date is the excess of (i) the sum of (a) the aggregate Class
Certificate Balances of the Class A Certificates (after taking into account the
distribution of the Class A Principal Distribution Amount for that Distribution
Date), (b) the Class Certificate Balance of the Class M-1 Certificates (after
taking into account the distribution of the Class M-1 Principal Distribution
Amount for that Distribution Date), (c) the Class Certificate Balance of the
Class M-2 Certificates (after taking into account the distribution of the Class
M-2 Principal Distribution Amount for that Distribution Date), (d) the Class
Certificate Balance of the Class M-3


                                      -31-

<PAGE>


Certificates (after taking into account the distribution of the Class M-3
Principal Distribution Amount for that Distribution Date), (e) the Class
Certificate Balance of the Class B-1 Certificates (after taking into account the
distribution of the Class B-1 Principal Distribution Amount for that
Distribution Date), (f) the Class Certificate Balance of the Class B-2
Certificates (after taking into account the distribution of the Class B-2
Principal Distribution Amount for that Distribution Date), (g) the Class
Certificate Balance of the Class B-3 Certificates (after taking into account the
distribution of the Class B-3 Principal Distribution Amount for that
Distribution Date) and (h) Class Certificate Balance of the Class B-4
Certificates immediately prior to that Distribution Date over (ii) the lesser of
(a) approximately ______% of the aggregate Stated Principal Balance of the
mortgage loans for that Distribution Date and (b) the excess, if any, of the
aggregate Stated Principal Balance of the mortgage loans for that Distribution
Date over $______.

            Class Certificate Balance: With respect to any Class and as to any
date of determination, the aggregate of the Certificate Balances of all
Certificates of such Class as of such date.

            Class IO Interest: As specified in the Preliminary Statement.

            Class IO Shortfalls: As defined in Section 8.13. For the avoidance
of doubt, the Class IO Shortfall for any Distribution Date shall equal the
amount payable to the Class X Certificates in respect of amounts due to the Swap
Provider on such Distribution Date (other than Defaulted Swap Termination
Payments) in excess of the amount payable on the Class X Interest (prior to
reduction for any Basis Risk Payment or Swap Termination Payments) on such
Distribution Date, all as further provided in Section 8.13.

            Class LT-R Interest: The sole class of "residual interest" in the
Lower Tier REMIC evidenced by the Class R Certificates.

            Class M Cap Agreement: The interest rate cap agreement, dated
_______, 200___, between the Cap Provider and the Securities Administrator,
relating to the Class M Certificates, a copy of which is attached hereto as
Exhibit T.

             Class M Certificates: As specified in the Preliminary Statement.

            Class M-1 Certificates: All Certificates bearing the class
designation of "Class M-1".

            Class M-1 Principal Distribution Amount: With respect to any
Distribution Date, the excess of (i) the sum of (A) the aggregate Class
Certificate Balances of the Class A Certificates (after taking into account the
distribution of the Class A Principal Distribution Amount for such Distribution
Date), and (B) the Class Certificate Balance of the Class M-1 Certificates
immediately prior to such Distribution Date over (ii) the lesser of (A)
________% of the aggregate Stated Principal Balance of the Mortgage Loans for
such Distribution Date and (B) the excess, if any, of the aggregate Stated
Principal Balance of the Mortgage Loans for such Distribution Date over $______.

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            Class M-2 Certificates: All Certificates bearing the class
designation of "Class M-2".

            Class M-2 Principal Distribution Amount: With respect to any
Distribution Date, the excess of (i) the sum of (A) the aggregate Class
Certificate Balances of the Class A Certificates (after taking into account the
distribution of the Class A Principal Distribution Amount for such Distribution
Date), (B) the Class Certificate Balance of the Class M-1 Certificates (after
taking into account the distribution of the Class M-1 Principal Distribution
Amount for such Distribution Date) and (C) the Class Certificate Balance of the
Class M-2 Certificates immediately prior to such Distribution Date over (ii) the
lesser of (A) ________% of the aggregate Stated Principal Balance of the
Mortgage Loans for such Distribution Date and (B) the excess, if any, of the
aggregate Stated Principal Balance of the Mortgage Loans for such Distribution
Date over $______.

            Class M-3 Certificates: All Certificates bearing the class
designation of "Class M-3".

            Class M-3 Principal Distribution Amount: With respect to any
Distribution Date, the excess of (i) the sum of (A) the aggregate Class
Certificate Balances of the Class A Certificates (after taking into account the
distribution of the Class A Principal Distribution Amount for such Distribution
Date), (B) the Class Certificate Balance of the Class M-1 Certificates (after
taking into account the distribution of the Class M-1 Principal Distribution
Amount for such Distribution Date), (C) the Class Certificate Balance of the
Class M-2 Certificates (after taking into account the distribution of the Class
M-2 Principal Distribution Amount for such Distribution Date) and (D) the Class
Certificate Balance of the Class M-3 Certificates immediately prior to such
Distribution Date over (ii) the lesser of (A) ______% of the aggregate Stated
Principal Balance of the Mortgage Loans for such Distribution Date and (B) the
excess, if any, of the aggregate Stated Principal Balance of the Mortgage Loans
for such Distribution Date over $______.

            Class P Certificates: All Certificates bearing the class designation
of "Class P".

            Class PT1-R Interest: The residual interest in Pooling-Tier REMIC-1
as described in the Preliminary Statement and the related footnote thereto.

            Class PT2-R Interest: The residual interest in Pooling-Tier REMIC-2
as described in the Preliminary Statement and the related footnote thereto.

            Class R Certificates: All Certificates bearing the class designation
of "Class R".

            Class UT-R Interest: The sole class of "residual interest" in the
Upper Tier REMIC evidenced by the Class R Certificate.

            Class X Certificates: All Certificates bearing the class designation
of "Class X".

            Class X Distributable Amount: On any Distribution Date, the sum of
(i) as a distribution in respect of interest, the amount of interest that has
accrued on the Class X Interest (as set forth in the Preliminary Statement) and
not applied as an Extra Principal Distribution


                                      -33-

<PAGE>


Amount on such Distribution Date, plus any such accrued interest remaining
undistributed from prior Distribution Dates, plus (without duplication) (ii) as
a distribution in respect of principal, any portion of the principal balance of
the Class X Interest which is distributable as a Subordination Reduction Amount,
minus (iii) any amounts paid from the Excess Reserve Fund Account to pay any
Basis Risk Carry Forward Amount or any Swap Termination Payment.

                  Class X Interest: The Upper Tier REMIC Regular Interest
represented by the Class X Certificates as specified and described in the
Preliminary Statement and the related footnote thereto.

            Closing Date: ________, 200_.

            Code: The Internal Revenue Code of 1986, including any successor or
amendatory provisions.

            Collection Account: As defined in Section 3.10(a).

            Combined Loan-to-Value Ratio or CLTV: As of any date and as to any
Second-Lien Mortgage Loan, the ratio (expressed as a percentage) of the (a) sum
of (i) the outstanding principal balance of the Second-Lien Mortgage Loan and
(ii) the outstanding principal balance as of such date of any mortgage loan or
mortgage loans that are senior or equal in priority to the Second-Lien Mortgage
Loan and which are secured by the same Mortgaged Property to (b) (i) in the case
of a purchase, the lesser of (A) the sale price of the Mortgaged Property and
(B) the lesser of (y) its appraised value at the time of sale or (z) the
appraised value determined by a review appraisal conducted by the Responsible
Party, or (ii) in the case of a refinancing or modification, the lesser of (A)
the appraised value of the Mortgaged property at the time of the refinancing or
modification or (B) the appraised value determined by a review appraisal
conducted by the Responsible Party.

            Commission: The United States Securities and Exchange Commission.

            Compensating Interest: For any Distribution Date, the lesser of (a)
the amount, if any, by which the Prepayment Interest Shortfall, if any, for such
Distribution Date, with respect to voluntary Principal Prepayments (excluding
any payments made upon liquidation of any Mortgage Loan) exceeds all Prepayment
Interest Excesses for such Distribution Date, and (b) the amount of the
Servicing Fee payable to the Servicer for such Distribution Date.

            Condemnation Proceeds: All awards or settlements in respect of a
Mortgaged Property, whether permanent or temporary, partial or entire, by
exercise of the power of eminent domain or condemnation.

            Convertible Mortgage Loan: Any individual Adjustable Rate Mortgage
Loan purchased pursuant to this Agreement which contains a provision whereby the
Mortgagor is permitted to convert the Adjustable Rate Mortgage Loan to a Fixed
Rate Mortgage Loan in accordance with the terms of the related Mortgage Note.

            Corporate Trust Office: (i) When used with respect to the Trustee,
the designated office of the Trustee at which at any particular time its
corporate trust business with respect to

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