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POOLING AND SERVICING AGREEMENT

Pooling and Servicing Agreement

POOLING AND SERVICING AGREEMENT | Document Parties: BANK OF NEW YORK | COUNTRYWIDE GP, INC | COUNTRYWIDE HOME LOANS SERVICING LP | COUNTRYWIDE HOME LOANS, INC | CWALT, INC | PARK GRANADA LLC | Park Monaco Inc | Park Sienna LLC You are currently viewing:
This Pooling and Servicing Agreement involves

BANK OF NEW YORK | COUNTRYWIDE GP, INC | COUNTRYWIDE HOME LOANS SERVICING LP | COUNTRYWIDE HOME LOANS, INC | CWALT, INC | PARK GRANADA LLC | Park Monaco Inc | Park Sienna LLC

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Title: POOLING AND SERVICING AGREEMENT
Governing Law: New York     Date: 3/20/2007

POOLING AND SERVICING AGREEMENT, Parties: bank of new york , countrywide gp  inc , countrywide home loans servicing lp , countrywide home loans  inc , cwalt  inc , park granada llc , park monaco inc , park sienna llc
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                                 EXHIBIT 99.1
                                 ------------

                       The Pooling and Servicing Agreement

<PAGE>

                                                                  EXECUTION COPY
                      ___________________________________

                                 CWALT, INC.,

                                   Depositor

                         COUNTRYWIDE HOME LOANS, INC.,

                                    Seller

                                PARK GRANADA LLC,

                                    Seller

                               PARK MONACO INC.,

                                    Seller

                               PARK SIENNA LLC,

                                    Seller

                     COUNTRYWIDE HOME LOANS SERVICING LP,

                                Master Servicer

                                      and

                             THE BANK OF NEW YORK,

                                    Trustee

                      ___________________________________

                        POOLING AND SERVICING AGREEMENT

                         Dated as of February 1, 2007
                     ___________________________________


                        ALTERNATIVE LOAN TRUST 2007-3T1

             MORTGAGE PASS-THROUGH CERTIFICATES, SERIES 2007-3T1


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

<PAGE>

                               Table of Contents

                                                                           Page
                                                                          ----


                              ARTICLE I DEFINITIONS                         I-1

SECTION 1.01.     Defined Terms.............................................I-1
SECTION 1.02.     Certain Interpretive Provisions..........................I-33

  ARTICLE II CONVEYANCE OF MORTGAGE LOANS; REPRESENTATIONS AND WARRANTIES   II-1

SECTION 2.01.     Conveyance of Mortgage Loans.............................II-1
SECTION 2.02.     Acceptance by Trustee of the Mortgage Loans..............II-4
SECTION 2.03.     Representations, Warranties and Covenants of the
                 Sellers and   Master Servicer.............................II-6
SECTION 2.04.     Representations and Warranties of the Depositor as to
                 the Mortgage Loans.......................................II-8
SECTION 2.05.     Delivery of Opinion of Counsel in Connection with
                 Substitutions............................................II-9
SECTION 2.06.     Execution and Delivery of Certificates...................II-9
SECTION 2.07.     REMIC Matters............................................II-9
SECTION 2.08.     Covenants of the Master Servicer........................II-10

            ARTICLE III ADMINISTRATION AND SERVICING OF MORTGAGE LOANS     III-1

SECTION 3.01.     Master Servicer to Service Mortgage Loans...............III-1
SECTION 3.02.     Subservicing; Enforcement of the Obligations of
                 Subservicers............................................III-2
SECTION 3.03.     Rights of the Depositor and the Trustee in Respect of
                 the Master Servicer.....................................III-2
SECTION 3.04.     Trustee to Act as Master Servicer.......................III-2
SECTION 3.05.     Collection of Mortgage Loan Payments; Certificate
                 Account; Distribution Account; the Supplemental
                 Interest Trust, the Reserve Fund........................III-3
SECTION 3.06.     Collection of Taxes, Assessments and Similar Items;
                 Escrow Accounts.........................................III-6
SECTION 3.07.     Access to Certain Documentation and Information
                 Regarding the Mortgage Loans............................III-6
SECTION 3.08.     Permitted Withdrawals from the Certificate Account,
                 the Distribution Account, the Reserve Fund..............III-7
SECTION 3.09.     Maintenance of Hazard Insurance; Maintenance of
                 Primary Insurance Policies..............................III-9
SECTION 3.10.     Enforcement of Due-on-Sale Clauses; Assumption
                 Agreements.............................................III-10
SECTION 3.11.     Realization Upon Defaulted Mortgage Loans; Repurchase
                  of Certain Mortgage Loans..............................III-11
SECTION 3.12.     Trustee to Cooperate; Release of Mortgage Files........III-14
SECTION 3.13.     Documents, Records and Funds in Possession of Master
                 Servicer to be Held for the Trustee....................III-14
SECTION 3.14.     Servicing Compensation.................................III-15
SECTION 3.15.     Access to Certain Documentation........................III-15
SECTION 3.16.     Annual Statement as to Compliance......................III-16
SECTION 3.17.     Errors and Omissions Insurance; Fidelity Bonds.........III-16
SECTION 3.18.     The Derivative Contracts...............................III-16


                                      i
<PAGE>


          ARTICLE IV DISTRIBUTIONS AND ADVANCES BY THE MASTER SERVICER     IV-1

SECTION 4.01.     Advances.................................................IV-1
SECTION 4.02.     Priorities of Distribution...............................IV-2
SECTION 4.03.     [Reserved]...............................................IV-6
SECTION 4.04.     Allocation of Realized Losses............................IV-6
SECTION 4.05.     Cross-Collateralization; Adjustments to Available
                 Funds....................................................IV-7
SECTION 4.06.     Monthly Statements to Certificateholders.................IV-8
SECTION 4.07.     Determination of Pass-Through Rates for COFI
                 Certificates.............................................IV-8
SECTION 4.08.     Determination of Pass-Through Rates for LIBOR
                 Certificates.............................................IV-9
SECTION 4.09.     Distributions from the Reserve Fund.....................IV-11

                           ARTICLE V THE CERTIFICATES                        V-1

SECTION 5.01.     The Certificates..........................................V-1
SECTION 5.02.     Certificate Register; Registration of Transfer and
                 Exchange of Certificates..................................V-1
SECTION 5.03.     Mutilated, Destroyed, Lost or Stolen Certificates.........V-5
SECTION 5.04.     Persons Deemed Owners.....................................V-6
SECTION 5.05.     Access to List of Certificateholders' Names and
                 Addresses.................................................V-6
SECTION 5.06.     Maintenance of Office or Agency...........................V-6
SECTION 5.07.     Depositable and Exchangeable Certificates.................V-6

                ARTICLE VI THE DEPOSITOR AND THE MASTER SERVICER           VI-1

SECTION 6.01.     Respective Liabilities of the Depositor and the Master
                 Servicer.................................................VI-1
SECTION 6.02.     Merger or Consolidation of the Depositor or the Master
                  Servicer.................................................VI-1
SECTION 6.03.     Limitation on Liability of the Depositor, the Sellers,
                 the Master Servicer and Others...........................VI-1
SECTION 6.04.     Limitation on Resignation of Master Servicer.............VI-2

                               ARTICLE VII DEFAULT                        VII-1

SECTION 7.01.     Events of Default.......................................VII-1
SECTION 7.02.     Trustee to Act; Appointment of Successor................VII-3
SECTION 7.03.     Notification to Certificateholders......................VII-4

                       ARTICLE VIII CONCERNING THE TRUSTEE               VIII-1

SECTION 8.01.     Duties of Trustee......................................VIII-1
SECTION 8.02.     Certain Matters Affecting the Trustee..................VIII-2
SECTION 8.03.     Trustee Not Liable for Certificates or Mortgage Loans..VIII-3
SECTION 8.04.     Trustee May Own Certificates...........................VIII-3
SECTION 8.05.     Trustee's Fees and Expenses............................VIII-3
SECTION 8.06.     Eligibility Requirements for Trustee...................VIII-3
SECTION 8.07.     Resignation and Removal of Trustee.....................VIII-4
SECTION 8.08.     Successor Trustee......................................VIII-5
SECTION 8.09.     Merger or Consolidation of Trustee.....................VIII-5
SECTION 8.10.     Appointment of Co-Trustee or Separate Trustee..........VIII-5
SECTION 8.11.     Tax Matters............................................VIII-7
SECTION 8.12.     Monitoring of Significance Percentage..................VIII-8


                                      ii
<PAGE>

                           ARTICLE IX TERMINATION                          IX-1

SECTION 9.01.     Termination upon Liquidation or Purchase of all
                 Mortgage Loans...........................................IX-1
SECTION 9.02.     Final Distribution on the Certificates...................IX-1
SECTION 9.03.     Additional Termination Requirements......................IX-2

                       ARTICLE X MISCELLANEOUS PROVISIONS                   X-1

SECTION 10.01.    Amendment.................................................X-1
SECTION 10.02.    Recordation of Agreement; Counterparts....................X-2
SECTION 10.03.    Governing Law.............................................X-2
SECTION 10.04.    Intention of Parties......................................X-2
SECTION 10.05.    Notices...................................................X-4
SECTION 10.06.    Severability of Provisions................................X-5
SECTION 10.07.    Assignment................................................X-5
SECTION 10.08.    Limitation on Rights of Certificateholders................X-5
SECTION 10.09.    Inspection and Audit Rights...............................X-6
SECTION 10.10.    Certificates Nonassessable and Fully Paid.................X-6
SECTION 10.11.    [Reserved]................................................X-6
SECTION 10.12.    Protection of Assets......................................X-6

                        ARTICLE XI EXCHANGE ACT REPORTING                  XI-1

SECTION 11.01.    Filing Obligations.......................................XI-1
SECTION 11.02.    Form 10-D Filings........................................XI-1
SECTION 11.03.    Form 8-K Filings.........................................XI-2
SECTION 11.04.    Form 10-K Filings........................................XI-2
SECTION 11.05.    Sarbanes-Oxley Certification.............................XI-2
SECTION 11.06.    Form 15 Filing...........................................XI-3
SECTION 11.07.    Report on Assessment of Compliance and Attestation.......XI-3
SECTION 11.08.    Use of Subservicers and Subcontractors...................XI-4
SECTION 11.09.    Amendments...............................................XI-5
SECTION 11.10.    Reconciliation of Accounts...............................XI-5


                                     iii
<PAGE>


                                   SCHEDULES

Schedule I:     Mortgage Loan Schedule....................................S-I-1
Schedule II-A: Representations and Warranties of Countrywide..........S-II-A-1
Schedule II-B: Representations and Warranties of Park Granada.........S-II-B-1
Schedule II-C   Representations and Warranties of Park Monaco Inc......S-II-C-1
Schedule II-D   Representations and Warranties of Park Sienna LLC......S-II-D-1
Schedule III-A: Representations and Warranties of Countrywide as to the
                Mortgage Loans.......................................S-III-A-1
Schedule III-B: Representations and Warranties of Countrywide as to the
                Countrywide
               Mortgage Loans........................................S-III-B-1
Schedule III-C: Representations and Warranties of Park Granada as to the Park
                Granada
               Mortgage Loans........................................S-III-C-1
Schedule III-D Representations and Warranties of Park Monaco Inc.
               as to the Park Monaco Inc. Mortgage Loans.............S-III-D-1
Schedule III-E Representations and Warranties of Park Sienna LLC
               as to the Park Sienna LLC Mortgage Loans..............S-III-E-1
Schedule IV:    Representations and Warranties of the Master Servicer....S-IV-1
Schedule V:     Principal Balance Schedules (if applicable)...............S-V-1
Schedule VI:    Form of Monthly Master Servicer Report...................S-VI-I
Schedule VII:   Schedule of Available Exchanges of Depositable Certificates
               for Exchangeable Certificates...........................S-VII-I

                                   EXHIBITS

Exhibit A:       Form of Senior or Exchangeable Certificate (excluding
                Notional Amount Certificates)..............................A-1
Exhibit B:       Form of Subordinated Certificate...........................B-1
Exhibit C-1:     Form of Class A-R Certificate............................C-1-1
Exhibit C-2:     [Reserved]...............................................C-2-1
Exhibit C-3:     [Reserved]...............................................C-3-1
Exhibit C-4:     [Reserved]...............................................C-4-1
Exhibit D:       Form of Notional Amount Certificate........................D-1
Exhibit E:       Form of Reverse of Certificates............................E-1
Exhibit F-1:     Form of Initial Certification of Trustee.................F-1-1
Exhibit F-2:     [Reserved]...............................................F-2-1
Exhibit G-1:     Form of Delay Delivery Certification of Trustee .........G-1-1
Exhibit G-2:     [Reserved]...............................................G-2-1
Exhibit H-1:     Form of Final Certification of Trustee ..................H-1-1
Exhibit H-2:     [Reserved]...............................................H-2-1
Exhibit I:       Form of Transfer Affidavit.................................I-1
Exhibit J-1:     Form of Transferor Certificate (Residual)................J-1-1
Exhibit J-2:     Form of Transferor Certificate (Private).................J-2-1
Exhibit K:       Form of Investment Letter [Non-Rule 144A]..................K-1
Exhibit L-1:     Form of Rule 144A Letter.................................L-1-1
Exhibit L-2:     Form of ERISA Letter (Covered Certificates)..............L-2-1
Exhibit M:       Form of Request for Release (for Trustee)..................M-1
Exhibit N:       Form of Request for Release of Documents (Mortgage Loan -
                Paid
                in Full, Repurchased and Replaced).........................N-1
Exhibit O:       [Reserved].................................................O-1
Exhibit P:       [Reserved].................................................P-1
Exhibit Q:       The then current Standard & Poor's LEVELS(R) Version 5.7
                Glossary Revised,


                                      iv
<PAGE>


                 Appendix E.................................................Q-1
Exhibit R:       Form of Derivative Contract ...............................R-1
Exhibit S-1:     [Reserved]...............................................S-1-1
Exhibit S-2:     [Reserved]...............................................S-2-1
Exhibit T:       [Reserved].................................................T-1
Exhibit U:       Form of Monthly Statement..................................U-1
Exhibit V-1:     Form of Performance Certification (Subservicer)..........V-1-1
Exhibit V-2:     Form of Performance Certification (Trustee)..............V-2-1
Exhibit W:       Form of Servicing Criteria to be Addressed in Assessment of
                Compliance
                Statement..................................................W-1
Exhibit X:       List of Item 1119 Parties..................................X-1
Exhibit Y:       Form of Sarbanes-Oxley Certification (Replacement of Master
                Servicer)..................................................Y-1


                                      v
<PAGE>


            THIS POOLING AND SERVICING AGREEMENT, dated as of February 1,
2007, among CWALT, INC., a Delaware corporation, as depositor (the
"Depositor"), COUNTRYWIDE HOME LOANS, INC. ("Countrywide"), a New York
corporation, as a seller (a "Seller"), PARK GRANADA LLC ("Park Granada"), a
Delaware limited liability company, as a seller (a "Seller"), PARK MONACO INC.
("Park Monaco"), a Delaware corporation, as a seller (a "Seller"), PARK SIENNA
LLC ("Park Sienna"), a Delaware limited liability company, as a seller (a
"Seller") COUNTRYWIDE HOME LOANS SERVICING LP, a Texas limited partnership, as
master servicer (the "Master Servicer"), and THE BANK OF NEW YORK, a banking
corporation organized under the laws of the State of New York, as trustee (the
"Trustee").

                                WITNESSETH THAT

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


                             PRELIMINARY STATEMENT

            The Depositor is the owner of the Trust Fund that is hereby
conveyed to the Trustee in return for the Certificates. For federal income tax
purposes, the Trustee shall treat the Trust Fund as consisting of, among other
things, a trust (the "ES Trust") beneath which are two real estate mortgage
investment conduits (or in the alternative, the "Lower Tier REMIC" and the
"Master REMIC") and shall make all elections as necessary for such treatment.
The Lower Tier REMIC will hold all the assets of the Trust Fund and will issue
several classes of uncertificated Lower Tier REMIC Interests. The Class
LTR-A-R Interest is hereby designated as the residual interest in the Lower
Tier REMIC and each other Lower Tier REMIC Interest is hereby designated as a
regular interest in the Lower Tier REMIC. The Master REMIC will hold all the
regular interests in the Lower Tier REMIC and will issue several classes of
uncertificated Master REMIC Interests. The Class MR-A-R Interest is hereby
designated as the residual interest in the Master REMIC and each other Master
REMIC Interest is hereby designated as a regular interest in the Master REMIC.
The "latest possible maturity date," for federal income tax purposes, of all
REMIC regular interests created hereby will be the Latest Possible Maturity
Date.

            The ES Trust shall hold the LTR-A-R Interest, the MR-A-R Interest,
all Master REMIC regular interests and shall issue the Certificates. Each
Certificate, other than the Class A-R Certificate, will represent ownership of
one or more of the Master REMIC regular interests held by the ES Trust. The
Class A-R Certificate will represent ownership of the LTR-A-R Interest and the
MR-A-R Interest, which are, respectively, the sole Classes of REMIC residual
interest in each of the Lower Tier REMIC and the Master REMIC.

            For federal income tax purposes the Trustee shall treat the ES
Trust as a Grantor Trust and shall treat each Holder of an ES Trust
Certificate as the owner of the individual, underlying assets represented by
such ES Trust Certificate. In addition, to the fullest extent possible,
ownership of an ES Trust Certificate shall be treated as direct ownership of
the individual, underlying assets represented by such ES Trust Certificate for
federal income tax reporting purposes.

      The ES Trust, the Derivative Contracts, the Supplemental Interest Trust
and the Reserve Fund will not form part of any REMIC.


                                      vi
<PAGE>


      The following table sets forth characteristics of the ES Trust
Certificates, together with the minimum denominations and integral multiples
in excess thereof in which such Classes shall be issuable (except that one
Residual Certificate representing the Tax Matters Person Certificate may be
issued in a different amount):


<TABLE>
<CAPTION>
=========================================================================================
                                                                             Classes of
                                                                                Master
                  Initial Maximum                              Integral          REMIC
                       Class        Pass-Through                Multiples       Interests
     Class            Certificate        Rate         Minimum      in Excess      Represented
  Designation          Balance       (per annum)   Denomination   of Minimum         (11)
-----------------------------------------------------------------------------------------
<S>                <C>                 <C>           <C>                 <C>      <C>
Class 1-A-1       $       75,000,000     6.00%       $25,000              $1      MR-1-A-1
-----------------------------------------------------------------------------------------
Class 1-A-2       $       55,000,000      (1)        $25,000              $1      MR-1-A-2
-----------------------------------------------------------------------------------------
Class 1-A-3       $       15,000,000      (2)        $25,000              $1      MR-1-A-3
-----------------------------------------------------------------------------------------
Class 1-A-4       $       15,000,000      (3)        $25,000              $1      MR-1-A-4
-----------------------------------------------------------------------------------------
Class 1-A-5       $       85,000,000(4)   (5)        $25,000(6)           $1(6)   MR-1-A-5

-----------------------------------------------------------------------------------------
Class 1-A-6       $       85,000,000     6.25%       $25,000              $1      MR-1-A-6
-----------------------------------------------------------------------------------------
Class 1-A-7       $      170,000,000     6.00%       $25,000              $1      MR-1-A-7
-----------------------------------------------------------------------------------------
Class 1-A-8       $      130,962,000     6.00%       $25,000              $1      MR-1-A-8-A-1,
                                                                            MR-1-A-8-A-2,
                                                                             MR-1-A-8-B,
                                                                            MR-1-A-8-C-1,
                                                                            MR-1-A-8-C-2
-----------------------------------------------------------------------------------------
Class 1-A-9       $    117,820,000       6.00%       $25,000              $1      MR-1-A-9-A-1,
                                                                            MR-1-A-9-A-2,
                                                                             MR-1-A-9-A-3,
                                                                            MR-1-A-9-B-1,
                                                                            MR-1-A-9-B-2,
                                                                             MR-1-A-9-B-3,
                                                                            MR-1-A-9-C-1,
                                                                            MR-1-A-9-C-2,
                                                                             MR-1-A-9-C-3,
-----------------------------------------------------------------------------------------
Class 1-A-10      $     22,264,000       6.00%       $25,000              $1      MR-1-A-10
-----------------------------------------------------------------------------------------
Class 1-A-11      $     14,374,000       6.00%       $25,000              $1      MR-1-A-11
-----------------------------------------------------------------------------------------
Class 1-A-12      $     87,308,000       5.75%       $25,000              $1      If 1-A-13
                                                                            is issued:
                                                                             MR-1-A-8-A-1.
                                                                            If 1-A-14
                                                                            is issued,
                                                                             MR-1-A-8-A-1
                                                                            and
                                                                            MR-1-A-8-C-1.
-----------------------------------------------------------------------------------------
Class 1-A-13      $      65,481,000      6.25%       $25,000              $1      MR-1-A-8-A-2,
                                                                            MR-1-A-8-B,
                                                                             MR-1-A-8-C-1,
                                                                            MR-1-A-8-C-2
-----------------------------------------------------------------------------------------
Class 1-A-14      $       43,654,000     6.50%       $25,000              $1      MR-1-A-8-A-
-----------------------------------------------------------------------------------------


                                     vii
<PAGE>

-----------------------------------------------------------------------------------------
                                                                            2,
                                                                            MR-1-A-8-B,
                                                                             MR-1-A-8-C-2
-----------------------------------------------------------------------------------------
Class 1-A-15      $ 117,820,000         5.50%       $25,000              $1      MR-1-A-9-A-1,
                                                                             MR-1-A-9-B-1,
                                                                            MR-1-A-9-C-1,
-----------------------------------------------------------------------------------------
Class 1-A-16      $ 117,820,000          5.75%       $25,000              $1      MR-1-A-9-A-1
                                                                            and
                                                                            MR-1-A-9-A-2
                                                                             or
                                                                            MR-1-A-9-A-3,
                                                                            MR-1-A-9-B-1
                                                                             and
                                                                            MR-1-A-9-B-2
                                                                            or
                                                                             MR-1-A-9-B-3,
                                                                            MR-1-A-9-C-1
                                                                            and
                                                                             MR-1-A-9-C-2
                                                                            or
                                                                            MR-1-A-9-C-3.
-----------------------------------------------------------------------------------------
Class 1-A-17      $ 9,818,333(4)        6.00%       $25,000(6)           $1(6)   If 1-A-15
                                                                            is issued:
                                                                             MR-1-A-9-A-2,
                                                                            MR-1-A-9-A-3,
                                                                            MR-1-A-9-B-2,
                                                                             MR-1-A-9-B-3,
                                                                            MR-1-A-9-C-2,
                                                                            MR-1-A-9-C-3.
                                                                            If 1-A-16
                                                                            is issued:
                                                                            MR-1-A-9-A-2
                                                                            or
                                                                            MR-1-A-9-A-3,
                                                                            MR-1-A-9-B-2
                                                                            or
                                                                            MR-1-A-9-B-3,
                                                                             MR-1-A-9-C-2
                                                                            or
                                                                            MR-1-A-9-C-3.
-----------------------------------------------------------------------------------------
Class 1-A-18      $ 78,546,667          5.75%       $25,000              $1      If 1-A-19
                                                                            is issued:
                                                                             MR-1-A-9-A-1
                                                                            and
                                                                            MR-1-A-9-A-2
                                                                             or
                                                                            MR-1-A-9-A-3.
                                                                            If 1-A-20
                                                                             is issued:
                                                                            MR-1-A-9-A-1
                                                                            and
                                                                             MR-1-A-9-A-2
                                                                            or
                                                                            MR-1-A-9-A-3;
                                                                             and
                                                                            MR-1-A-9-C-1
                                                                            and
                                                                             MR-1-A-9-C-2
-----------------------------------------------------------------------------------------


                                     viii
<PAGE>

-----------------------------------------------------------------------------------------
                                                                             or
                                                                            MR-1-A-9-C-3.
-----------------------------------------------------------------------------------------
Class 1-A-19      $    58,910,000        6.25%       $25,000              $1      MR-1-A-9-A-2
                                                                            or
                                                                            MR-1-A-9-A-3,
                                                                            MR-1-A-9-B-1,
                                                                            MR-1-A-9-B-2
                                                                            and
                                                                            MR-1-A-9-B-3,
                                                                            MR-1-A-C-1
                                                                            and
                                                                            MR-1-A-9-C-2
                                                                            or
                                                                            MR-1-A-9-C-3.
-----------------------------------------------------------------------------------------
Class 1-A-20      $    39,273,333        6.50%       $25,000              $1      MR-1-A-9-A-2
                                                                                or
                                                                            MR-1-A-9-A-3,
                                                                            MR-1-A-9-B-1,
                                                                             MR-1-A-9-B-2
                                                                            and
                                                                            MR-1-A-9-B-3
                                                                             and
                                                                            MR-1-A-9-C-2
                                                                            or
                                                                             MR-1-A-9-C-3.
-----------------------------------------------------------------------------------------
Class 2-A-1       $      54,384,000      6.00%       $25,000              $1      MR-2-A-1-A
                                                                               and
                                                                            MR-2-A-1-B,
                                                                              and
                                                                             MR-2-A-1-C
-----------------------------------------------------------------------------------------
Class 2-A-2       $      54,384,000      5.25%       $25,000                     MR-2-A-1-A
-----------------------------------------------------------------------------------------
Class 2-A-3       $      54,384,000      5.50%       $25,000                     MR-2-A-1-A
                                                                              and
                                                                             MR-2-A-1-B
-----------------------------------------------------------------------------------------
Class 2-A-4       $      54,384,000      5.75%       $25,000                     MR-2-A-1-A
                                                                               and
                                                                            MR-2-A-1-C
-----------------------------------------------------------------------------------------
Class 2-A-5       $    6,798,000(4)      6.00%       $25,000(6)                  MR-2-A-1-B
                                                                              and/or
                                                                            MR-2-A-1-C
-----------------------------------------------------------------------------------------
Class 1-X         $ 684,251,070(4)       (7)        $25,000(6)           $1(6)   MR-1-X

-----------------------------------------------------------------------------------------
Class 2-X         $    48,622,686(4)      (8)        $25,000(6)           $1(6)   MR-2-X
-----------------------------------------------------------------------------------------
Class PO          $       2,013,605       (9)        $25,000              $1      MR-PO
-----------------------------------------------------------------------------------------
Class A-R(10)     $          100.00      6.00%         (10)              (10)     LTR-A-R and
                                                                            MR-A-R
-----------------------------------------------------------------------------------------
Class M           $      20,878,000      6.00%       $25,000              $1      MR-M-1
-----------------------------------------------------------------------------------------
Class B-1         $         8,432,000     6.00%       $25,000              $1      MR-B-1
-----------------------------------------------------------------------------------------
Class B-2         $       6,022,000      6.00%       $25,000              $1      MR-B-2
-----------------------------------------------------------------------------------------
Class B-3         $        4,417,000     6.00%      $100,000              $1      MR-B-3
-----------------------------------------------------------------------------------------
Class B-4          $        3,212,000     6.00%      $100,000              $1      MR-B-4
-----------------------------------------------------------------------------------------
Class B-5         $     3,212,155.86     6.00%      $100,000              $1      MR-B-5

=========================================================================================
</TABLE>

__________________________________________

                                      ix
<PAGE>

(1)   The Class 1-A-2 Certificates will bear interest during each Interest
      Accrual Period at a per annum rate of LIBOR plus 0.50%, subject to a
     maximum and minimum Pass-Through Rate of 5.75% and 0.50% per annum,
     respectively. The Pass-Through Rate for the Class 1-A-2 Certificates for
     the Interest Accrual Period for the first Distribution Date is 5.75% per
     annum.

(2)   The Class 1-A-3 Certificates will bear interest during each Interest
     Accrual Period at a per annum rate of LIBOR plus 0.50%, subject to a
     maximum and minimum Pass-Through Rate of 5.75% and 0.50% per annum,
     respectively. The Pass-Through Rate for the Class 1-A-3 Certificates for
     the Interest Accrual Period for the first Distribution Date is 5.75% per
     annum.

(3)   The Class 1-A-4 Certificates will bear interest during each Interest
     Accrual Period at a per annum rate of LIBOR plus 0.50%, subject to a
     maximum and minimum Pass-Through Rate of 5.75% and 0.50% per annum,
     respectively. The Pass-Through Rate for the Class 1-A-4 Certificates for
     the Interest Accrual Period for the first Distribution Date is 5.75% per
     annum.

(4)   This Class will be a Class of Notional Amount Certificates, will have no
     Class Certificate Balance and will bear interest on its Notional Amount.

(5)   The Class 1-A-5 Certificates will bear interest during each Interest
     Accrual Period at a per annum rate of 5.25% minus LIBOR, subject to a
     maximum and minimum Pass-Through Rate of 5.25% and 0.00% per annum,
     respectively. The Pass-Through Rate for the Class 1-A-5 Certificates for
     the Interest Accrual Period for the first Distribution Date is 0.00% per
     annum.

(6)   Minimum denomination is based on the Notional Amount of such Class.

(7)   The Pass-Through Rate for the Class 1-X Certificates for the Interest
     Accrual Period for any Distribution Date will equal the excess of (a) the
     weighted average of the Adjusted Net Mortgage Rates of the Non-Discount
     Mortgage Loans in Loan Group 1, weighted on the basis of the Stated
     Principal Balances thereof as of the Due Date in the preceding calendar
     month (after giving effect to Principal Prepayments received in the
     Prepayment Period related to such prior Due Date), over (b) 6.00%. The
     Pass-Through Rate for the Class 1-X Certificates for the Interest Accrual
     Period for the first Distribution Date is 0.408770% per annum.

(8)   The Pass-Through Rate for the Class 2-X Certificates for the Interest
     Accrual Period for any Distribution Date will equal the excess of (a) the
     weighted average of the Adjusted Net Mortgage Rates of the Non-Discount
     Mortgage Loans in Loan Group 2, weighted on the basis of the Stated
     Principal Balances thereof as of the Due Date in the preceding calendar
     month (after giving effect to Principal Prepayments received in the
     Prepayment Period related to such prior Due Date), over (b) 6.00%. The
     Pass-Through Rate for the Class 2-X Certificates for the Interest Accrual
     Period for the first Distribution Date is 0.223870% per annum.

(9)   The Class PO Certificates are Principal Only Certificates and will not
     receive any distributions of interest.

(10) The Class A-R Certificates represent the sole Class of residual interest
     in the Master REMIC and in Lower Tier REMIC. The Class A-R Certificate
     shall be issued by the ES Trust as two separate certificates, one with an
     initial Certificate Balance of $99.99 and the Tax Matters Person
     Certificate with an initial Certificate Balance of $0.01.


                                       x
<PAGE>


(11) See Schedule VII for information regarding the Recombinations of the
     Depositable and Exchangeable Certificates related to these uncertificated
     Master REMIC Interests.


                                      xi
<PAGE>


      The following table specifies the class designation, interest rate, and
principal amount for each class of Master REMIC Interest:

--------------------------------------------------------------------------------
Master REMIC Interest       Initial          Interest Rate          Possible
                      Principal Balance                       Corresponding ES
                                                            Trust Certificates
--------------------------------------------------------------------------------
MR-1-A-1               $       75,000,000         6.00%         1-A-1
--------------------------------------------------------------------------------
MR-1-A-2               $       55,000,000          (1)          1-A-2
--------------------------------------------------------------------------------
MR-1-A-3               $       15,000,000          (2)          1-A-3
--------------------------------------------------------------------------------
MR 1-A-4               $       15,000,000          (3)          1-A-4
--------------------------------------------------------------------------------
MR-1-A-5               $       85,000,000(4)       (5)          1-A-5
--------------------------------------------------------------------------------
MR-1-A-6                $       85,000,000         6.25%         1-A-6
--------------------------------------------------------------------------------
MR-1-A-7               $      170,000,000         6.00%         1-A-7
--------------------------------------------------------------------------------
MR-1-A-8-A-1           $       65,481,000         5.75%         1-A-8, 1-A-12
--------------------------------------------------------------------------------
MR-1-A-8-A-2           $       65,481,000(4)       .25%         1-A-8, 1-A-13,
                                                            1-A-14
--------------------------------------------------------------------------------
MR-1-A-8-B             $       43,654,000         6.00%         1-A-8, 1-A-13,
                                                             1-A-14
--------------------------------------------------------------------------------
MR-1-A-8-C-1           $       21,827,000         5.75%         1-A-8, 1-A-12
--------------------------------------------------------------------------------
MR-1-A-8-C-2           $       21,827,000(4)       .25%         1-A-8, 1-A-13,
                                                            1-A-14
--------------------------------------------------------------------------------
MR-1-A-9-A-1            $       58,910,000         5.50%         1-A-9, 1-A-15,
                                                            1-A-16, 1-A-18
--------------------------------------------------------------------------------
MR-1-A-9-A-2           $       58,910,000(4)       .25%         1-A-9, 1-A-16,
                                                            1-A-17, 1-A-18,
                                                            1-A-19
--------------------------------------------------------------------------------
MR-1-A-9-A-3           $       58,910,000(4)       .25%         1-A-9, 1-A-16,
                                                            1-A-17, 1-A-18,
                                                            1-A-19, 1-A-20
--------------------------------------------------------------------------------
MR-1-A-9-B-1           $       39,273,333         5.50%         1-A-9, 1-A-15,
                                                            1-A-16, 1-A-19,
                                                             1-A-20
--------------------------------------------------------------------------------
MR-1-A-9-B-2           $       39,273,333(4)       .25%         1-A-9, 1-A-16,
                                                            1-A-17, 1-A-19,
                                                             1-A-20
--------------------------------------------------------------------------------
MR-1-A-9-B-3           $       39,273,333 (4)      .25%         1-A-9, 1-A-16,
                                                             1-A-17, 1-A-19,
                                                            1-A-20
--------------------------------------------------------------------------------
MR-1-A-9-C-1           $       19,636,667         5.50%         1-A-9, 1-A-15,
                                                            1-A-16, 1-A-18,
                                                            1-A-19
--------------------------------------------------------------------------------
MR-1-A-9-C-2           $       19,636,667 (4)      .25%         1-A-9, 1-A-16,
                                                            1-A-17, 1-A-18,
                                                            1-A-19, 1-A-20
--------------------------------------------------------------------------------
MR-1-A-9-C-3           $       19,636,667 (4)      .25%         1-A-9, 1-A-16,
                                                            1-A-17, 1-A-18,
                                                            1-A-19, 1-A-20
--------------------------------------------------------------------------------
MR-1-A-10              $       22,264,000         6.00%         1-A-10
--------------------------------------------------------------------------------
MR-1-A-11              $      14,374,000          6.00%         1-A-11
--------------------------------------------------------------------------------
MR-1-X(1)                     (4)                 (6)          1-X
--------------------------------------------------------------------------------
MR-2-A-1-A             $       54,384,000         5.25%         2-A-1, 2-A-2,
                                                            2-A-3, 2-A-4
--------------------------------------------------------------------------------
MR-2-A-1-B                    (4)                 ()           2-A-1, 2-A-3,
                                                            2-A-5
--------------------------------------------------------------------------------
MR-2-A-1-C                    (4)                 ()           2-A-1, 2-A-4, 2-A-5
--------------------------------------------------------------------------------
MR-2-X                        (4)                 (7)          2-X
--------------------------------------------------------------------------------
MR-1-$100               $              100         6.00%         A-R
--------------------------------------------------------------------------------


                                     xii
<PAGE>


--------------------------------------------------------------------------------
MR-PO                  $        2,013,605          (8)          PO
--------------------------------------------------------------------------------
MR-M                   $       20,878,000         6.00%         M
--------------------------------------------------------------------------------
MR-B-1                 $        8,432,000         6.00%         B-1
--------------------------------------------------------------------------------
MR-B-2                 $        6,022,000         6.00%         B-2
--------------------------------------------------------------------------------
MR-B-3                 $        4,417,000         6.00%         B-3
--------------------------------------------------------------------------------
MR-B-4                 $        3,212,000         6.00%         B-4
--------------------------------------------------------------------------------
MR-B-5                 $        3,212,155.86      6.00%         B-5
--------------------------------------------------------------------------------
MR-A-R                        (9)                 (9)          N/A
--------------------------------------------------------------------------------


(1)   The Class MR-1-A-2 Interests will bear interest during each Interest
     Accrual Period at a per annum rate of LIBOR plus 0.50%, subject to a
     maximum and minimum Pass-Through Rate of 5.75% and 0.50% per annum,
     respectively. The Pass-Through Rate for the Class MR-1-A-2 Interests for
     the Interest Accrual Period for the first Distribution Date is 5.75% per
     annum.

(2)   The Class MR-1-A-3 Interests will bear interest during each Interest
     Accrual Period at a per annum rate of LIBOR plus 0.50%, subject to a
     maximum and minimum Pass-Through Rate of 5.75% and 0.50% per annum,
     respectively. The Pass-Through Rate for the Class MR-1-A-3 Interests for
     the Interest Accrual Period for the first Distribution Date is 5.75% per
     annum.

(3)   The Class MR-1-A-4 Interests will bear interest during each Interest
     Accrual Period at a per annum rate of LIBOR plus 0.50%, subject to a
     maximum and minimum Pass-Through Rate of 5.75% and 0.50% per annum,
     respectively. The Pass-Through Rate for the Class MR-1-A-4 Interests for
     the Interest Accrual Period for the first Distribution Date is 5.75% per
     annum.

(4)   This Class will be a Class of Notional Amount Interest, will have no
     Class Balance and will bear interest on its Notional Amount.

(5)   The Class MR-1-A-5 Interest will bear interest during each Interest
     Accrual Period at a per annum rate of 5.25% minus LIBOR, subject to a
     maximum and minimum Pass-Through Rate of 5.25% and 0.00% per annum,
     respectively. The Pass-Through Rate for the Class MR-1-A-5 Interests for
     the Interest Accrual Period for the first Distribution Date is 0.00% per
     annum.

(6)   This class of Master REMIC Interest pays no principal. The MR-1-X Master
     REMIC Interest is entitled to receive on each Distribution Date all
     amounts payable with respect to the LTR-1-X Lower Tier REMIC Interest.

(7)   This class of Master REMIC Interest pays no principal. The MR-2-X Master
     REMIC Interest is entitled to receive on each Distribution Date all
     amounts payable with respect to the LTR-2-X Lower Tier REMIC Interest.

(8)   This Class of Master REMIC Interest pays no interest.

(9)   The Class MR-A-R Master REMIC Interest represents the sole Class of
     residual interest in the Master REMIC.


                                     xiii
<PAGE>


      The following table specifies the class designation, interest rate, and
principal amount for each class of Lower Tier REMIC Interests:
--------------------------------------------------------------------------------
                                                               Corresponding
  Lower Tier REMIC          Initial                                Master REMIC
     Interest         Principal Balance     Interest Rate           Interest
--------------------------------------------------------------------------------
LTR-1-A-1               $       75,000,000         6.00          MR-1-A-1
--------------------------------------------------------------------------------
LTR 1-A-2              $       55,000,000         5.75%         MR-1-A-2, 1-A-5(1)
--------------------------------------------------------------------------------
LTR-1-A-3              $       15,000,000         5.75%         MR-1-A-3, 1-A-5(1)
--------------------------------------------------------------------------------
LTR-1-A-4              $       15,000,000         5.75%         MR-1-A-4, 1-A-5(1)
--------------------------------------------------------------------------------
LTR-1-A-6              $       85,000,000         6.25%         MR-1-A-6
--------------------------------------------------------------------------------
LTR-1-A-7              $     170,000,000          6.00%         MR-1-A-7
--------------------------------------------------------------------------------
LTR-1-A-8-A            $       65,481,000         6.00%         MR-1-A-8-A-1 and
                                                             MR-1-A-8-A-2 (2)
--------------------------------------------------------------------------------
LTR-1-A-8-B            $       43,654,000         6.00%         MR-1-A-8-B
--------------------------------------------------------------------------------
LTR-1-A-8-C            $       21,827,000         6.00%         MR-1-A-8-C-1 and
                                                            MR-1-A-8-C-2 (3)
--------------------------------------------------------------------------------
LTR-1-A-9-A            $       58,910,000         6.00%         MR-1-A-9-A-1,
                                                            MR-1-A-9-A-2,
                                                            MR-1-A-9-A-3 (4)
--------------------------------------------------------------------------------
LTR-1-A-9-B            $       39,273,333         6.00%         MR-1-A-9-B-1,
                                                            MR-1-A-9-B-2,
                                                             MR-1-A-9-B-3 (5)
--------------------------------------------------------------------------------
LTR-1-A-9-C            $       19,636,667         6.00%         MR-1-A-9-C-1,
                                                            MR-1-A-9-C-2,
                                                             MR-1-A-9-C-3 (6)
--------------------------------------------------------------------------------
LTR-1-A-10             $       22,264,000         6.00%         MR-1-A-10
--------------------------------------------------------------------------------
LTR-1-A-11             $       14,374,000         6.00%         MR-1-A-11
--------------------------------------------------------------------------------
LTR-1-X                       (7)                 (8)           MR-1-X
--------------------------------------------------------------------------------
LTR-2-A-1              $       54,384,000         6.00%         MR-2-A-1-A,
                                                            MR-2-A-1-B,,
                                                             MR-2-A-1-C (9)
--------------------------------------------------------------------------------
LTR-2-X                       (7)                (10)          MR-2-X
--------------------------------------------------------------------------------
LTR-1-$100             $              100.00      6.00%         MR-A-R

--------------------------------------------------------------------------------
LTR-PO                 $        2,013,605         (11)          MR-PO
--------------------------------------------------------------------------------
LTR-M                  $       20,878,000         6.00%         MR-M
--------------------------------------------------------------------------------
LTR-B-1                $        8,432,000         6.00%         MR-B-1
--------------------------------------------------------------------------------
LTR-B-2                $        6,022,000         6.00%         MR-B-2
--------------------------------------------------------------------------------
LTR-B-3                $        4,417,000         6.00%         MR-B-3
--------------------------------------------------------------------------------
LTR-B-4                $        3,212,000         6.00%         MR-B-4
--------------------------------------------------------------------------------
LTR-B-5                $        3,212,155.86      6.00%         MR-B-5

--------------------------------------------------------------------------------
LTR-A-R                      (12)                (12)          N/A
--------------------------------------------------------------------------------
(1)    For each Distribution Date, the Class 1-A-5 Master REMIC Interests are
      each entitled to a specified portion of the interest payable on each of
      the Class LTR-1-A-2 Lower Tier REMIC Interest, Class LTR-1-A-3 Lower
      Tier REMIC Interest and Class LTR-1-A-4 Lower Tier REMIC Interest.
      Specifically, for each Distribution Date, the Class 1-A-5 Master REMIC
      Interests are


                                      xiv
<PAGE>


      each entitled to interest payable on each of the Class LTR-1-A-2 Lower
      Tier REMIC Interest, Class LTR-1-A-3 Lower Tier REMIC Interest and Class
      LTR-1-A-4 Lower Tier REMIC Interest at a per annum rate equal to 5.25%
       minus LIBOR, but not less than 0.00%.

(2)    For each Distribution Date, the Class MR-1-A-8-A-2 Master REMIC Interest
      is entitled to a specified portion of the interest payable on the
      LTR-1-A-8-A Lower Tier REMIC Interest. Specifically, for each related
      Distribution Date, the Class the MR-1-A-8-A-2 Master REMIC Interest is
      entitled to interest payable on the LTR-1-A-8-A Lower Tier REMIC
      Interest at a per annum rate equal to 0.25%

(3)    For each Distribution Date, the Class MR-1-A-8-C-2 Master REMIC Interest
      is entitled to a specified portion of the interest payable on the
      LTR-1-A-8-C Lower Tier REMIC Interest. Specifically, for each related
      Distribution Date, the Class the MR-1-A-8-C-2 Master REMIC Interest is
      entitled to interest payable on the LTR-1-A-8-C Lower Tier REMIC
      Interest at a per annum rate equal to 0.25%

(4)    For each Distribution Date, each of the Class MR-1-A-9-A-2 and Class
      MR-1-A-9-A-3 Master REMIC Interest is entitled to a specified portion of
      the interest payable on the LTR-1-A-9-A Lower Tier REMIC Interest.
      Specifically, for each related Distribution Date, each of the Class
      MR-1-A-9-A-2 and Class MR-1-A-9-A-3 Master REMIC Interest is entitled to
      interest payable on the LTR-1-A-9-A Lower Tier REMIC Interest at a per
      annum rate equal to 0.25%

(5)    For each Distribution Date, each of the Class MR-1-A-9-B-2 and Class
      MR-1-A-9-B-3 Master REMIC Interest is entitled to a specified portion of
      the interest payable on the LTR-1-A-9-B Lower Tier REMIC Interest.
      Specifically, for each related Distribution Date, each of the Class
      MR-1-A-9-B-2 and Class MR-1-A-9-B-3 Master REMIC Interest is entitled to
      interest payable on the LTR-1-A-9-B Lower Tier REMIC Interest at a per
      annum rate equal to 0.25%

(6)    For each Distribution Date, each of the Class MR-1-A-9-C-2 and Class
      MR-1-A-9-C-3 Master REMIC Interest is entitled to a specified portion of
      the interest payable on the LTR-1-A-9-C Lower Tier REMIC Interest.
      Specifically, for each related Distribution Date, each of the Class
      MR-1-A-9-C-2 and Class MR-1-A-9-C-3 Master REMIC Interest is entitled to
      interest payable on the LTR-1-A-9-C Lower Tier REMIC Interest at a per
      annum rate equal to 0.25%

(7)    This Class of Lower Tier REMIC Interest pays no principal.

(8)    For each Distribution Date, the Class LTR-1-X Lower Tier REMIC Interest
      is entitled to a specified portion of the interest payable on the
      Non-Discount Mortgage Loans in Loan Group 1. Specifically, for each
      related Distribution Date, the Class LTR-1-X Lower Tier REMIC Interest
      is entitled to interest accruals on each such Non-Discount Mortgage Loan
      in excess of an Adjusted Net Mortgage Rate of 6.00% per annum.

(9)    For each Distribution Date, each of the Class MR-2-A-1-B and Class
      MR-2-A-1-C Master REMIC Interest is entitled to a specified portion of
      the interest payable on the LTR-2-A-1 Lower Tier REMIC Interest.
      Specifically, for each related Distribution Date, the Class MR-2-A-1-B
      Master REMIC Interest is entitled to interest payable on the LTR-2-A-1
      Lower Tier REMIC Interest at a per annum rate equal to 0.25% and the
      Class MR-2-A-1-C Master REMIC Interest is


                                      xv

<PAGE>


      entitled to interest payable on the LTR-2-A-1 Lower Tier REMIC Interest
      at a per annum rate equal to 0.50%

(10)   For each Distribution Date, the Class LTR-2-X Lower Tier REMIC Interest
      is entitled to a specified portion of the interest payable on the
      Non-Discount Mortgage Loans in Loan Group 2. Specifically, for each
      related Distribution Date, the Class LTR-2-X Lower Tier REMIC Interest
      is entitled to interest accruals on each such Non-Discount Mortgage Loan
      in excess of an Adjusted Net Mortgage Rate of 6.00% per annum.

(11)   This Class of Lower Tier REMIC Interest pays no interest.

(12)   The LT-A-R is the sole class of residual interest in the Lower Tier
      REMIC. It pays no interest or principal.

      On each Distribution Date, interest shall be payable on the Lower Tier
REMIC Interests according the formulas described above, and principal,
Realized Losses and Subsequent Recoveries shall be allocated among the Lower
Tier REMIC Interests in the same manner that such items are allocated among
their corresponding Certificate Classes.

      The foregoing REMIC structure is intended to cause all of the cash from
the Mortgage Loans to flow through to the Master REMIC as cash flow on a REMIC
regular interest, without creating any shortfall-actual or potential (other
than for credit losses) to any REMIC regular interest.


                                     xvi
<PAGE>


      Set forth below are designations of Classes or Components of
Certificates and other defined terms to the categories used herein:

Accretion Directed
  Certificates................ None.

Accretion Directed
Components................... None.

Accrual Certificates......... one.

Accrual Components........... one.

Book-Entry Certificates...... All Classes of Certificates ther than the
                              Physical ertificates.

COFI Certificates............ None.

Combined Certificates........ None.

Component Certificates....... Class PO Certificates.

Components....................For purposes of calculating distributions of
                              principal and/or interest, the Component
                              Certificates, if any, will be comprised of
                              multiple payment components having the
                              designations, Initial Component Balances or
                              Notional Amounts, as applicable, and
                               Pass-Through Rates set forth below:

                                               Initial
                 Designation               Component Balance     Pass-Through Rate
               --------------------        ------------------    -----------------
               Class PO-1 Component               $1,738,075           (1)
               Class PO-2 Component                 $275,530           (1)
                  (1) This component does not bear interest.

Delay Certificates........... All interest-bearing Classes of Certificates
                              other than the Non-Delay Certificates, if any.

Depositable Certificates..... Class 1-A-8, Class 1-A-9 and Class 2-A-1
                              Certificates.

ERISA-Restricted Certificates The Residual Certificates and Private
                              Certificates; until an ERISA-Qualifying
                              Underwriting has occurred with respect to such
                              Class, the Class PO, the Class 1-X and the Class
                              2-X Certificates; and any Certificate of a Class
                              that does not have or no longer has a rating of
                              at least BBB- or its equivalent from at least
                               one Rating Agency.

Exchangeable Certificates.... Class 1-A-12, Class 1-A-13, Class 1-A-14, Class
                              1-A-15, Class 1-A-16, Class 1-A-17, Class
                              1-A-18, Class 1-A-19, Class 1-A-20, Class 2-A-2,
                              Class 2-A-3 and Class 2-A-4 Certificates.

Floating Rate Certificates... Class 1-A-2, Class 1-A-3 and Class 1-A-4
                              Certificates.

Group 1 Certificates......... Group 1 Senior Certificates and the portions of
                              the Subordinated Certificates related to Loan
                              Group 1.


                                     xvii
<PAGE>


Group 1 Senior Certificates.. Class 1-A-1, Class 1-A-2, Class 1-A-3, Class
                              1-A-4, Class 1-A-5, Class 1-A-6, Class 1-A-7,
                              Class 1-A-8, Class 1-A-9, Class 1-A-10, Class
                              1-A-11, Class 1-X and Class A-R Certificates and
                               Class PO-1 Component.

Group 2 Certificates......... Group 2 Senior Certificates and the portions of
                              the Subordinated Certificates related to Loan
                              Group 2.

Group 2 Senior Certificates...Class 2-A-1 and Class 2-X Certificates and Class
                              PO-2 Component

Inverse Floating Rate
  Certificates................ Class 1-A-5 Certificates.

LIBOR Certificates........... The Floating Rate Certificates and the Inverse
                              Floating Rate Certificates.

Non-Delay Certificates....... LIBOR Certificates.

Notional Amount Certificates. Class 1-A-5, Class 1-A-17, Class 2-A-5, Class
                              1-X and Class 2-X Certificates.

Notional Amount Components... None.

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

Physical Certificates........ Private Certificates and the Residual
                               Certificates.

Planned Principal Classes.... None.

Principal Only Certificates.. Class PO Certificates.

Private Certificates......... Class B-3, Class B-4 and Class B-5
                              Certificates.

Rating Agencies.............. Fitch, S&P and Moody's.

Regular Certificates......... All Classes of Certificates, other than the
                              Residual Certificates.

Residual Certificates........ Class A-R Certificates.

Scheduled Principal Classes.. None.

Senior Certificate Group..... The Group 1 Senior
                              Certificates and the Group 2 Senior
                              Certificates, as applicable.

Senior Certificates.......... The Group 1 Senior Certificates and Group 2
                               Senior Certificates.

Subordinated Certificates.... Class M, Class B-1, Class B-2, Class B-3,
                              Class B-4 and Class B-5 Certificates.

Targeted Principal Classes... None.


                                    xviii
<PAGE>


Underwriter.................. UBS Securities LLC (Senior), Countrywide
                              Securities Corporation and Morgan Stanley & Co.
                              Incorporated.

            With respect to any of the foregoing designations as to which the
corresponding reference is "None," all defined terms and provisions herein
relating solely to such designations shall be of no force or effect, and any
calculations herein incorporating references to such designations shall be
interpreted without reference to such designations and amounts. Defined terms
and provisions herein relating to statistical rating agencies not designated
above as Rating Agencies shall be of no force or effect.


                                     xix
<PAGE>


                                    ARTICLE I

                                  DEFINITIONS

            SECTION 1.01. Defined Terms.

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

            Account:   Any Escrow Account, the Certificate Account, the
Distribution Account, the Reserve Fund, the Exchangeable Certificates
Distribution Account or any other account related to the Trust Fund or the
Mortgage Loans.

            Accretion Directed Certificates:   As specified in the Preliminary
Statement.

            Accretion Direction Rule: Not applicable.

            Accrual Amount: With respect to any Class of Accrual Certificates
or any Accrual Component and any Distribution Date prior to the related
Accrual Termination Date, the amount allocable to interest on such Class of
Accrual Certificates or Accrual Component with respect to such Distribution
Date pursuant to Section 4.02(a).

            Accrual Certificates:   As specified in the Preliminary Statement.

            Accrual Components:   As specified in the Preliminary Statement.

            Accrual Termination Date:   Not applicable.

            Additional Designated Information:   As defined in Section 11.02.

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

            Adjusted Net Mortgage Rate: As to each Mortgage Loan, and at any
time, the per annum rate equal to the Mortgage Rate less the sum of the
Trustee Fee Rate and the Master Servicing Fee Rate. For purposes of
determining whether any Substitute Mortgage Loan is a Discount Mortgage Loan
or a Non-Discount Mortgage Loan and for purposes of calculating the applicable
PO Percentage and the applicable Non-PO Percentage, each Substitute Mortgage
Loan shall be deemed to have an Adjusted Net Mortgage Rate equal to the
Adjusted Net Mortgage Rate of the Deleted Mortgage Loan for which it is
substituted.

            Advance: As to a Loan Group, the payment required to be made by
the Master Servicer with respect to any Distribution Date pursuant to Section
4.01, the amount of any such payment being equal to the aggregate of payments
of principal and interest (net of the Master Servicing Fee) on the Mortgage
Loans in such Loan Group that were due on the related Due Date and not
received by the Master Servicer as of the close of business on the related
Determination Date, together with an amount equivalent to interest on each
Mortgage Loan as to which the related Mortgaged Property is an REO Property
(net of any net income from such REO Property), less the aggregate amount of
any such delinquent payments that the Master Servicer has determined would
constitute a Nonrecoverable Advance, if advanced.


                                     I-1
<PAGE>


            Aggregate Planned Balance: With respect to any group of Planned
Principal Classes or Components and any Distribution Date, the amount set
forth for such group for such Distribution Date in Schedule V hereto.

            Aggregate Scheduled Balance: With respect to any group of
Scheduled Principal Classes or Components and any Distribution Date, the
amount set forth for such group for such Distribution Date in Schedule V
hereto.

            Aggregate Targeted Balance: With respect to any group of Targeted
Principal Classes or Components and any Distribution Date, the amount set
forth for such group for such Distribution Date in Schedule V hereto.

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

            Allocable Share: As to any Distribution Date and any Mortgage Loan
(i) with respect to each Class PO Component, zero, (ii) with respect to the
Class 1-X and Class 2-X Certificates, (a) the ratio that the excess, if any,
of the Adjusted Net Mortgage Rate with respect to such Mortgage Loan, over the
related Required Coupon bears to such Adjusted Net Mortgage Rate or (b) if the
Adjusted Net Mortgage Rate with respect to such Mortgage Loan does not exceed
the related Required Coupon, zero and (iii) with respect to each other Class
of Certificates the product of (a) the lesser of (I) the ratio that the
related Required Coupon bears to the Adjusted Net Mortgage Rate of such
Mortgage Loan and (II) one, multiplied by (b) the ratio that the amount
calculated with respect to such Distribution Date (A) with respect to the
Senior Certificates of the related Senior Certificate Group (other than the
related Class PO Component), pursuant to clause (i) of the definition of Class
Optimal Interest Distribution Amount (without giving effect to any reduction
of such amount pursuant to Section 4.02(d)) and (B) with respect to the
Subordinated Certificates, pursuant to the definition of Assumed Interest
Amount or after a Senior Termination Date pursuant to clause (i) of the
definition of Class Optimal Interest Distribution Amount (without giving
effect to any reduction of such amount pursuant to Section 4.02(d)) bears to
the amount calculated with respect to such Distribution Date for each Class of
Certificates pursuant to clause (i) of the definition of Class Optimal
Interest Distribution Amount (without giving effect to any reduction of such
amount pursuant to Section 4.02(d)) or the definition of Assumed Interest
Amount, as applicable.

            Amount Available for Senior Principal: As to any Distribution Date
and (a) Loan Group 1, the Available Funds for such Distribution Date and Loan
Group, reduced by the aggregate amount distributable (or allocable to the
Accrual Amount, if applicable) on such Distribution Date in respect of
interest on the related Senior Certificates pursuant to Section 4.02(a)(1)(ii)
and (b) Loan Group 2, the Available Funds for such Distribution Date and Loan
Group, reduced by the aggregate amount distributable (or allocable to the
Accrual Amount, if applicable) on such Distribution Date in respect of
interest on the related Senior Certificates pursuant to Section
4.02(a)(2)(ii).

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

            Applicable Credit Support Percentage:   As defined in Section
4.02(e).


                                     I-2
<PAGE>


            Appraised Value: With respect to any Mortgage Loan, the Appraised
Value of the related Mortgaged Property shall be: (i) with respect to a
Mortgage Loan other than a Refinancing Mortgage Loan, the lesser of (a) the
value of the Mortgaged Property based upon the appraisal made at the time of
the origination of such Mortgage Loan and (b) the sale price of the Mortgaged
Property at the time of the origination of such Mortgage Loan; (ii) with
respect to a Refinancing Mortgage Loan other than a Streamlined Documentation
Mortgage Loan, the value of the Mortgaged Property based upon the appraisal
made-at the time of the origination of such Refinancing Mortgage Loan; and
(iii) with respect to a Streamlined Documentation Mortgage Loan, (a) if the
loan-to-value ratio with respect to the Original Mortgage Loan at the time of
the origination thereof was 80% or less and the loan amount of the new
mortgage loan is $650,000 or less, the value of the Mortgaged Property based
upon the appraisal made at the time of the origination of the Original
Mortgage Loan and (b) if the loan-to-value ratio with respect to the Original
Mortgage Loan at the time of the origination thereof was greater than 80% or
the loan amount of the new loan being originated is greater than $650,000, the
value of the Mortgaged Property based upon the appraisal (which may be a
drive-by appraisal) made at the time of the origination of such Streamlined
Documentation Mortgage Loan.

            Assumed Balance: For a Distribution Date and Loan Group, an amount
equal to the Subordinated Percentage for that Distribution Date relating to
that Loan Group of the aggregate of the applicable Non-PO Percentage of the
Stated Principal Balance of each Mortgage Loan in such Loan Group as of the
Due Date occurring in the month prior to the month of that Distribution Date
(after giving effect to Principal Prepayments received in the Prepayment
Period related to such Due Date).

            Assumed Interest Amount: With respect to any Distribution Date and
each Class of Subordinated Certificates, one month's interest accrued during
the related Interest Accrual Period at the Pass-Through Rate for such Class on
the applicable Assumed Balance immediately prior to that Distribution Date.

            Available Funds: As to any Distribution Date and the Mortgage
Loans in a Loan Group, the sum of (a) the aggregate amount held in the
Certificate Account at the close of business on the related Determination
Date, including any Subsequent Recoveries, in respect of such Mortgage Loans,
net of the related Amount Held for Future Distribution and net of amounts
permitted to be withdrawn from the Certificate Account pursuant to clauses (i)
- (viii), inclusive, of Section 3.08(a) in respect of such Mortgage Loans and
amounts permitted to be withdrawn from the Distribution Account pursuant to
clauses (i) - (v), inclusive, of Section 3.08(b) in respect of such Mortgage
Loans, (b) the amount of the related Advance and (c) in connection with
Defective Mortgage Loans in such Loan Group, as applicable, the aggregate of
the Purchase Prices and Substitution Adjustment Amounts deposited on the
related Distribution Account Deposit Date; provided, however, that on a Senior
Termination Date, Available Funds with respect to the Loan Group relating to
the remaining Senior Certificate Group shall include the Available Funds from
the other Loan Groups after all distributions are made on the Senior
Certificates of the other Senior Certificate Group or Groups and on any
Distribution Date thereafter, Available Funds shall be calculated based upon
all the Mortgage Loans in the Mortgage Pool, as opposed to the Mortgage Loans
in the related Loan Group.

            Bankruptcy Code:   The United States Bankruptcy Reform Act of
1978, as amended.

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

            Business Day: Any day other than (i) a Saturday or a Sunday, or
(ii) a day on which banking institutions in the City of New York, New York, or
the States of California or Texas or the city in which the Corporate Trust
Office of the Trustee is located are authorized or obligated by law or
executive order to be closed.


                                     I-3
<PAGE>


            Calculation Rate: For each Distribution Date, the product of (i)
10 and (ii) the weighted average rate of the outstanding Class A and Class B
Interests, treating each Class A Interest as having an interest rate of 0.00%
per annum.

            Cap Contract: With respect to the Class 1-A-3 and Class 1-A-4
Certificates, the transaction evidenced by the related Confirmation, a form of
each of which is attached hereto as Exhibit R.

            Cap Contract Scheduled Termination Date:   The Distribution Date
in January 2012.

            Ceiling Rate:   With respect to each Class of Covered
Certificates, the applicable percentage set forth below:

            -------------------------------------------
                                            Ceiling
             Class of Certificates            Rate
            -------------------------------------------
            Class 1-A-2                       98.50%
            -------------------------------------------
            Class 1-A-3                         N/A
            -------------------------------------------
            Class 1-A-4                         N/A
            -------------------------------------------


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

            Certificate Account: The separate Eligible Account or Accounts
created and maintained by the Master Servicer pursuant to Section 3.05 with a
depository institution, initially Countrywide Bank, N.A., in the name of the
Master Servicer for the benefit of the Trustee on behalf of Certificateholders
and designated "Countrywide Home Loans Servicing LP, in trust for the
registered holders of Alternative Loan Trust 2007-3T1, Mortgage Pass-Through
Certificates, Series 2007-3T1."

            Certificate Balance: With respect to any Certificate at any date
(other than the Notional Amount Certificates), the maximum dollar amount of
principal to which the Holder thereof is then entitled hereunder, such amount
being equal to the Denomination thereof (A) plus any increase in the
Certificate Balance of each Certificate pursuant to Section 4.02 due to the
receipt of Subsequent Recoveries, (B) minus the sum of (i) all distributions
of principal previously made with respect thereto and (ii) all Realized Losses
allocated thereto and, in the case of the Subordinated Certificates, all other
reductions in Certificate Balance previously allocated thereto pursuant to
Section 4.04 and (C) in the case of any Class of Accrual Certificates,
increased by the Accrual Amount added to the Class Certificate Balance of such
Class prior to such date. The Notional Amount Certificates have no Certificate
Balances.

            Certificate Group: The Group 1 Certificates or the Group 2
Certificates, as the context requires.

            Certificate Owner: With respect to a Book-Entry Certificate, the
Person who is the beneficial owner of such Book-Entry Certificate. For the
purposes of this Agreement, in order for a Certificate Owner to enforce any of
its rights hereunder, it shall first have to provide evidence of its
beneficial ownership interest in a Certificate that is reasonably satisfactory
to the Trustee, the Depositor, and/or the Master Servicer, as applicable.

            Certificate Register:   The register maintained pursuant to
Section 5.02 hereof.


                                     I-4
<PAGE>


            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 (other than the second sentence of Section 10.01 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 Trustee 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.

            Certification Party:   As defined in Section 11.05.

            Certifying Person:   As defined in Section 11.05.

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

            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 Interest Shortfall: As to any Distribution Date and Class,
the amount by which the amount described in clause (i) of the definition of
Class Optimal Interest Distribution Amount for such Class exceeds the amount
of interest actually distributed on such Class on such Distribution Date
pursuant to such clause (i).

            Class Optimal Interest Distribution Amount: With respect to any
Distribution Date and interest bearing Class or, with respect to any
interest-bearing Component, the sum of (i) one month's interest accrued during
the related Interest Accrual Period at the Pass-Through Rate for such Class on
the related Class Certificate Balance, Component Balance, Notional Amount or
Component Notional Amount, as applicable, immediately prior to such
Distribution Date, subject to reduction as provided in Section 4.02(d) and
(ii) any Class Unpaid Interest Amounts for such Class or Component. Interest
on any Class of Certificates shall be calculated on the basis of a 360-day
year consisting of twelve 30-day months.

            Class PO Component: The Class PO-1 or Class PO-2 Component, as
applicable.

            Class PO Deferred Amount: As to any Distribution Date and Loan
Group, the aggregate of the applicable PO Percentage of each Realized Loss on
a Discount Mortgage Loan in that Loan Group to be allocated to the related
Class PO Component on such Distribution Date on or prior to the related Senior
Credit Support Depletion Date or previously allocated to such Class PO
Component and not yet paid to the Holders of the Class PO Certificates.

            Class Subordination Percentage: With respect to any Distribution
Date and each Class of Subordinated Certificates, the quotient (expressed as a
percentage) of (a) the Class Certificate Balance of such Class of Subordinated
Certificates immediately prior to such Distribution Date divided by (b) the
aggregate of the Class Certificate Balances immediately prior to such
Distribution Date of all Classes of Certificates.


                                     I-5
<PAGE>


            Class Unpaid Interest Amounts: As to any Distribution Date and
Class of interest bearing Certificates, the amount by which the aggregate
Class Interest Shortfalls for such Class on prior Distribution Dates exceeds
the amount distributed on such Class on prior Distribution Dates pursuant to
clause (ii) of the definition of Class Optimal Interest Distribution Amount.

            Closing Date:   February 27, 2007.

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

            COFI:   The Monthly Weighted Average Cost of Funds Index for the
Eleventh District Savings Institutions published by the Federal Home Loan
Bank of San Francisco.

             COFI Certificates:   As specified in the Preliminary Statement.

            Combined Certificates:   As specified in the Preliminary Statement.

            Combined Certificates Payment Rule:   Not applicable.

            Commission:   The U.S. Securities and Exchange Commission.

            Compensating Interest: As to any Distribution Date and Loan Group
an amount equal to the product of one-twelfth of 0.125% and the aggregate
Stated Principal Balance of the Mortgage Loans in such Loan Group as of the
Due Date in the prior calendar month.

            Component:   As specified in the Preliminary Statement.

            Component Balance: With respect to any Component and any
Distribution Date, the Initial Component Balance thereof on the Closing Date,
(A) plus any increase in the Component Balance of such Component pursuant to
Section 4.02 due to the receipt of Subsequent Recoveries, (B) minus the sum of
all amounts applied in reduction of the principal balance of such Component
and Realized Losses allocated thereto on previous Distribution Dates.

            Component Certificates:   As specified in the Preliminary
Statement.

            Component Notional Amount:   Not applicable.

            Confirmation: With respect to the Class 1-A-2 Certificates, the
confirmation (reference number: FXNEC9256), dated February 26, 2007,
evidencing a transaction between the Derivative Contract Counterparty and the
Supplemental Interest Trustee. With respect to the Class 1-A-3 Certificates,
the confirmation (reference number: FXNCC9191), dated February 14, 2007,
evidencing a transaction between the Derivative Contract Counterparty and the
Supplemental Interest Trustee. With respect to the Class 1-A-4 Certificates,
the confirmation (reference number: FXNCC9199), dated February 14, 2007,
evidencing a transaction between the Derivative Contract Counterparty and the
Supplemental Interest Trustee.

            Coop Shares: Shares issued by a Cooperative Corporation.

            Cooperative Corporation: The entity that holds title (fee or an
acceptable leasehold estate) to the real property and improvements
constituting the Cooperative Property and which governs the


                                     I-6
<PAGE>


Cooperative Property, which Cooperative Corporation must qualify as a
Cooperative Housing Corporation under Section 216 of the Code.

            Cooperative Loan: Any Mortgage Loan secured by Coop Shares and a
Proprietary Lease.

            Cooperative Property: The real property and improvements owned by
the Cooperative Corporation, including the allocation of individual dwelling
units to the holders of the Coop Shares of the Cooperative Corporation.

            Cooperative Unit: A single family dwelling located in a
Cooperative Property.

            Corporate Trust Office: The designated office of the Trustee in
the State of New York at which at any particular time its corporate trust
business with respect to this Agreement shall be administered, which office at
the date of the execution of this Agreement is located at 101 Barclay Street,
4W, New York, New York 10286 (Attn: Mortgage-Backed Securities Group, CWALT,
Inc. Series 2007-3T1), facsimile no. (212) 815-3986, and which is the address
to which notices to and correspondence with the Trustee should be directed.

            Corridor Contract: With respect to the Class 1-A-2 Certificates,
the transactions evidenced by the related Confirmation, a form of which is
attached hereto as Exhibit R.

            Corridor Contract Scheduled Termination Date: With respect to the
Class 1-A-2 Certificates, the Distribution Date in January 2012.

            Countrywide:   Countrywide Home Loans, Inc., a New York
corporation, and its successors and assigns, in its capacity as the seller of
the Countrywide Mortgage Loans to the Depositor.

            Countrywide Mortgage Loans:   The Mortgage Loans identified as
such on the Mortgage Loan Schedule for which Countrywide is the applicable
Seller.

            Covered Certificates:   The Class 1-A-2, Class 1-A-3 and Class
1-A-4 Certificates.

            Cross-Over Situation: For any Distribution Date and for each Loan
Group (after taking into account principal distributions on such Distribution
Date) with respect to the Class A and Class B Lower Tier REMIC Interests, a
situation in which the Class A and Class B Interests corresponding to any Loan
Group are in the aggregate less than 1% of the Subordinated Portion of the
Loan Group to which they correspond.

            Cut-off Date: In the case of any Mortgage Loan, the later of (i)
the date of origination of such Mortgage Loan and (ii) February 1, 2007.

            Cut-off Date Pool Principal Balance:   $802,990,861.35.

            Cut-off Date Principal Balance:   As to any Mortgage Loan, the
Stated Principal Balance thereof as of the close of business on the Cut-off
Date.

            Debt Service Reduction: With respect to any Mortgage Loan, a
reduction by a court of competent jurisdiction in a proceeding under the
Bankruptcy Code in the Scheduled Payment for such Mortgage Loan which became
final and non-appealable, except such a reduction resulting from a Deficient
Valuation or any reduction that results in a permanent forgiveness of
principal.


                                     I-7
<PAGE>


            Defective Mortgage Loan: Any Mortgage Loan which is required to be
repurchased pursuant to Section 2.02 or 2.03.

            Deficient Valuation: With respect to any Mortgage Loan, a
valuation by a court of competent jurisdiction of the Mortgaged Property in an
amount less than the then-outstanding indebtedness under the Mortgage Loan, or
any reduction in the amount of principal to be paid in connection with any
Scheduled Payment that results in a permanent forgiveness of principal, which
valuation or reduction results from an order of such court which is final and
non-appealable in a proceeding under the Bankruptcy Code.

            Definitive Certificates:   Any Certificate evidenced by a Physical
Certificate and any Certificate issued in lieu of a Book-Entry Certificate
pursuant to Section 5.02(e).

            Delay Certificates: As specified in the Preliminary Statement.

            Delay Delivery Certification:   As defined in Section 2.02(a)
hereof.

            Delay Delivery Mortgage Loans: The Mortgage Loans for which all or
a portion of a related Mortgage File is not delivered to the Trustee on the
Closing Date. The number of Delay Delivery Mortgage Loans shall not exceed 50%
of the aggregate number of Mortgage Loans in each Loan Group as of the Closing
Date. To the extent that Countrywide Home Loans Servicing LP shall be in
possession of any Mortgage Files with respect to any Delay Delivery Mortgage
Loan, until delivery of such Mortgage File to the Trustee as provided in
Section 2.01, Countrywide Home Loans Servicing LP shall hold such files as
Master Servicer hereunder, as agent and in trust for the Trustee.

            Deleted Mortgage Loan:   As defined in Section 2.03(c) hereof.

            Denomination: With respect to each Certificate, the amount set
forth on the face thereof as the "Initial Certificate Balance of this
Certificate" or the "Initial Notional Amount of this Certificate" or, if
neither of the foregoing, the Percentage Interest appearing on the face
thereof.

            Depositable Certificates:   As specified in the Preliminary
Statement.

            Depositor:   CWALT, Inc., a Delaware corporation, or its successor
in interest.

            Depository: The initial Depository shall be The Depository Trust
Company, the nominee of which is CEDE & Co., as the registered Holder of the
Book-Entry Certificates. The Depository shall at all times be a "clearing
corporation" as defined in Section 8-102(a)(5) of the Uniform Commercial Code
of the State of New York.

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

            Derivative Contracts:   The Corridor Contract and the Cap
Contracts.

            Derivative Contract Counterparty:   Bear Stearns Financial
Products Inc.

            Determination Date: As to any Distribution Date, the 22nd day of
each month or if such 22nd day is not a Business Day the next preceding
Business Day; provided, however, that if such 22nd day or such Business Day,
whichever is applicable, is less than two Business Days prior to the related


                                     I-8
<PAGE>


Distribution Date, the Determination Date shall be the first Business Day
which is two Business Days preceding such Distribution Date.

            Discount Mortgage Loan: Any Mortgage Loan in a Loan Group with an
Adjusted Net Mortgage Rate that is less than the Required Coupon for that Loan
Group.

            Distribution Account: The separate Eligible Account created and
maintained by the Trustee pursuant to Section 3.05 in the name of the Trustee
for the benefit of the Certificateholders and designated "The Bank of New York
in trust for registered holders of Alternative Loan Trust 2007-3T1, Mortgage
Pass-Through Certificates, Series 2007-3T1." Funds in the Distribution Account
shall be held in trust for the Certificateholders for the uses and purposes
set forth in this Agreement.

            Distribution Account Deposit Date: As to any Distribution Date,
12:30 p.m. Pacific time on the Business Day immediately preceding such
Distribution Date.

            Distribution Date: The 25th day of each calendar month after the
initial issuance of the Certificates, or if such 25th day is not a Business
Day, the next succeeding Business Day, commencing in March 2007.

            Due Date: With respect to any Distribution Date, the related Due
Date is the first day of the month in which that Distribution Date occurs.

             EDGAR:   The Commission's Electronic Data Gathering, Analysis and
Retrieval system.

            Eligible Account: Any of (i) an account or accounts maintained
with a federal or state chartered depository institution or trust company, the
short-term unsecured debt obligations of which (or, in the case of a
depository institution or trust company that is the principal subsidiary of a
holding company, the debt obligations of such holding company) have the
highest short-term ratings of Moody's or Fitch and one of the two highest
short-term ratings of S&P, if S&P is a Rating Agency, at the time any amounts
are held on deposit therein, or (ii) an account or accounts in a depository
institution or trust company in which such accounts are insured by the FDIC
(to the limits established by the FDIC) and the uninsured deposits in which
accounts are otherwise secured such that, as evidenced by an Opinion of
Counsel delivered to the Trustee and to each Rating Agency, the
Certificateholders have a claim with respect to the funds in such account or a
perfected first priority security interest against any collateral (which shall
be limited to Permitted Investments) securing such funds that is superior to
claims of any other depositors or creditors of the depository institution or
trust company in which such account is maintained, or (iii) a trust account or
accounts maintained with (a) the trust department of a federal or state
chartered depository institution or (b) a trust company, acting in its
fiduciary capacity or (iv) any other account acceptable to each Rating Agency.
Eligible Accounts may bear interest, and may include, if otherwise qualified
under this definition, accounts maintained with the Trustee.

            Eligible Repurchase Month:   As defined in Section 3.11 hereof.

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

            ERISA-Qualifying Underwriting: A best efforts or firm commitment
underwriting or private placement that meets the requirements of the
Underwriter's Exemption.

            ERISA-Restricted Certificate: As specified in the Preliminary
Statement.


                                     I-9
<PAGE>


            ES Trust: The separate trust created under this Agreement pursuant
to Section 5.07(a).

             ES Trust Certificate: Any Class of Certificates issued by the ES
Trust and representing beneficial ownership of one or more uncertificated
Master REMIC Interests held by such ES Trust.

            Escrow Account: The Eligible Account or Accounts established and
maintained pursuant to Section 3.06(a) hereof.

            Event of Default:   As defined in Section 7.01 hereof.

            Excess Proceeds: With respect to any Liquidated Mortgage Loan, the
amount, if any, by which the sum of any Liquidation Proceeds received with
respect to such Mortgage Loan during the calendar month in which such Mortgage
Loan became a Liquidated Mortgage Loan plus any Subsequent Recoveries received
with respect to such Mortgage Loan, net of any amounts previously reimbursed
to the Master Servicer as Nonrecoverable Advance(s) with respect to such
Mortgage Loan pursuant to Section 3.08(a)(iii), exceeds (i) the unpaid
principal balance of such Liquidated Mortgage Loan as of the Due Date in the
month in which such Mortgage Loan became a Liquidated Mortgage Loan plus (ii)
accrued interest at the Mortgage Rate from the Due Date as to which interest
was last paid or advanced (and not reimbursed) to Certificateholders up to the
Due Date applicable to the Distribution Date immediately following the
calendar month during which such liquidation occurred.

            Exchange Act: The Securities Exchange Act of 1934, as amended, and
the rules and regulations promulgated thereunder.

            Exchange Act Reports: Any reports on Form 10-D, Form 8-K and Form
10-K required to be filed by the Depositor with respect to the Trust Fund
under the Exchange Act.

            Exchange Fee:   As defined in Section 5.07(e).

            Exchangeable Certificates:   As specified in the Preliminary
Statement.

            Exchangeable Certificates Distribution Account: The separate
Eligible Account created and maintained by the Trustee on behalf of the ES
Trust pursuant to Section 5.07(a) in the name of the Trustee for the benefit
of the Holders of the Exchangeable Certificates and designated "The Bank of
New York in trust for registered Holders of Alternative Loan Trust 2007-3T1,
Mortgage Pass-Through Certificates, Series 2007-3T1." Funds in the
Exchangeable Certificates Distribution Account shall be held in trust for the
Certificateholders for the uses and purposes set forth in this Agreement.

            Expense Rate:   As to each Mortgage Loan, the sum of the Master
Servicing Fee Rate and the Trustee Fee Rate.

            FDIC:   The Federal Deposit Insurance Corporation, or any
successor thereto.

            FHLMC: The Federal Home Loan Mortgage Corporation, a corporate
instrumentality of the United States created and existing under Title III of
the Emergency Home Finance Act of 1970, as amended, or any successor thereto.

            Final Certification:   As defined in Section 2.02(a) hereof.


                                     I-10
<PAGE>


            FIRREA:   The Financial Institutions Reform, Recovery, and
Enforcement Act of 1989.

             Fitch:   Fitch, Inc., or any successor thereto.   If Fitch is
designated as a Rating Agency in the Preliminary Statement, for purposes of
Section 10.05(b) the address for notices to Fitch shall be Fitch, Inc., One
State Street Plaza, New York, New York   10004, Attention: Residential
Mortgage Surveillance Group, or such other address as Fitch may hereafter
furnish to the Depositor and the Master Servicer.

            FNMA: The Federal National Mortgage Association, a federally
chartered and privately owned corporation organized and existing under the
Federal National Mortgage Association Charter Act, or any successor thereto.

            Form 10-D Disclosure Item: With respect to any Person, any
material litigation or governmental proceedings pending against such Person,
or against any of the Trust Fund, the Depositor, the Trustee, the co-trustee,
the Master Servicer or any Subservicer if such Person has actual knowledge
thereof.

            Form 10-K Disclosure Item: With respect to any Person, (a) any
Form 10-D Disclosure Item and (b) any affiliations or relationships between
such Person and any Item 1119 Party.

            Grantor Trust: A trust described in Section 671 of the Code, the
items of income, deductions and credits of which must be included in computing
the taxable income and credits of the person treated as the owner of such
trust (either the grantor or other person designated under the Code).

            Group 1 Mortgage Loans:   The Mortgage Loans in Loan Group 1.

            Group 1 Senior Certificates:   As specified in the Preliminary
Statement.

            Group 2 Mortgage Loans:   The Mortgage Loans in Loan Group 2.

            Group 2 Senior Certificates:   As specified in the Preliminary
Statement.

            Index: With respect to any Interest Accrual Period for the COFI
Certificates, if any, the then-applicable index used by the Trustee pursuant
to Section 4.07 to determine the applicable Pass-Through Rate for such
Interest Accrual Period for the COFI Certificates.

            Indirect Participant: A broker, dealer, bank or other financial
institution or other Person that clears through or maintains a custodial
relationship with a Depository Participant.

            Initial Certification:   As defined in Section 2.02(a) hereof.

            Initial Component Balance:   As specified in the Preliminary
Statement.

            Initial LIBOR Rate:   5.32%.

            Insurance Policy: With respect to any Mortgage Loan included in
the Trust Fund, any insurance policy, including all riders and endorsements
thereto in effect, including any replacement policy or policies for any
Insurance Policies.

            Insurance Proceeds: Proceeds paid by an insurer pursuant to any
Insurance Policy, in each case other than any amount included in such
Insurance Proceeds in respect of Insured Expenses.


                                     I-11
<PAGE>


            Insured Expenses: Expenses covered by an Insurance Policy or any
other insurance policy with respect to the Mortgage Loans.

             Interest Accrual Period: With respect to each Class of Delay
Certificates, its corresponding Lower Tier REMIC Regular Interest and any
Distribution Date, the calendar month prior to the month of such Distribution
Date. With respect to any Class of Non-Delay Certificates, its corresponding
Lower Tier REMIC Regular Interest and any Distribution Date, the one month
period commencing on the 25th day of the month preceding the month in which
such Distribution Date occurs and ending on the 24th day of the month in which
such Distribution Date occurs.

            Interest Determination Date: With respect to (a) any Interest
Accrual Period for any LIBOR Certificates and (b) any Interest Accrual Period
for the COFI Certificates for which the applicable Index is LIBOR, the second
Business Day prior to the first day of such Interest Accrual Period.

            Item 1119 Party: The Depositor, any Seller, the Master Servicer,
the Trustee, any Subservicer, any originator identified in the Prospectus
Supplement, the Corridor Contract Counterparty and any other material
transaction party, as identified in Exhibit X hereto, as updated pursuant to
Section 11.04.

            Latest Possible Maturity Date: The Distribution Date following the
third anniversary of the scheduled maturity date of the Mortgage Loan having
the latest scheduled maturity date as of the Cut-off Date.

            Lender PMI Mortgage Loan: Certain Mortgage Loans as to which the
lender (rather than the borrower) acquires the Primary Insurance Policy and
charges the related borrower an interest premium.

            LIBOR: The London interbank offered rate for one-month United
States dollar deposits calculated in the manner described in Section 4.08.

            LIBOR Certificates: As specified in the Preliminary Statement.

            Limited Exchange Act Reporting Obligations: The obligations of the
Master Servicer under Section 3.16(b), Section 6.02 and Section 6.04 with
respect to notice and information to be provided to the Depositor and Article
XI (except Section 11.07(a)(1) and (2)).

            Liquidated Mortgage Loan: With respect to any Distribution Date, a
defaulted Mortgage Loan (including any REO Property) which was liquidated in
the calendar month preceding the month of such Distribution Date and as to
which the Master Servicer has determined (in accordance with this Agreement)
that it has received all amounts it expects to receive in connection with the
liquidation of such Mortgage Loan, including the final disposition of an REO
Property.

            Liquidation Proceeds: Amounts, including Insurance Proceeds,
received in connection with the partial or complete liquidation of defaulted
Mortgage Loans, whether through trustee's sale, foreclosure sale or otherwise
or amounts received in connection with any condemnation or partial release of
a Mortgaged Property and any other proceeds received in connection with an REO
Property, less the sum of related unreimbursed Master Servicing Fees,
Servicing Advances and Advances.

            Loan Group: Any of Loan Group 1 or Loan Group 2, as applicable.


                                     I-12
<PAGE>


            Loan Group 1:   All Mortgage Loans identified as Group 1 Mortgage
Loans on the Mortgage Loan Schedule.

            Loan Group 2:   All Mortgage Loans identified as Group 2 Mortgage
Loans on the Mortgage Loan Schedule.

            Loan Group Principal Balance: As to any Distribution Date and Loan
Group, the aggregate Stated Principal Balance of the Mortgage Loans in that
Loan Group as of the Due Date in the month preceding the month of the
Distribution Date (after giving effect to Principal Prepayments received in
the Prepayment Period related to such Due Date).

            Loan-to-Value Ratio: With respect to any Mortgage Loan and as to
any date of determination, the fraction (expressed as a percentage) the
numerator of which is the principal balance of the related Mortgage Loan at
such date of determination and the denominator of which is the Appraised Value
of the related Mortgaged Property.

            Lost Mortgage Note: Any Mortgage Note the original of which was
permanently lost or destroyed and has not been replaced.

            Lower Tier REMIC: As specified in the Preliminary Statement.

            Lower Tier REMIC Interest: As specified in the Preliminary
Statement.

            Lower Tier REMIC Regular Interest: As specified in the Preliminary
Statement.

            LTR-A-R Interest: As specified in the Preliminary Statement.

            Maintenance: With respect to any Cooperative Unit, the rent paid
by the Mortgagor to the Cooperative Corporation pursuant to the Proprietary
Lease.

            Majority in Interest: As to any Class of Regular Certificates, the
Holders of Certificates of such Class evidencing, in the aggregate, at least
51% of the Percentage Interests evidenced by all Certificates of such Class.

            Master REMIC: As described in the Preliminary Statement.

            Master Servicer: Countrywide Home Loans Servicing LP, a Texas
limited partnership, and its successors and assigns, in its capacity as master
servicer hereunder.

            Master Servicer Advance Date: As to any Distribution Date, 12:30
p.m. Pacific time on the Business Day immediately preceding such Distribution
Date.

            Master Servicing Fee: As to each Mortgage Loan and any
Distribution Date, an amount payable out of each full payment of interest
received on such Mortgage Loan and equal to one-twelfth of the Master
Servicing Fee Rate multiplied by the Stated Principal Balance of such Mortgage
Loan as of the Due Date in the month preceding the month of such Distribution
Date, subject to reduction as provided in Section 3.14.

            Master Servicing Fee Rate: With respect to each Mortgage Loan,
0.200% per annum.

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


                                     I-13
<PAGE>


            MERS Mortgage Loan:   Any Mortgage Loan registered with MERS on
the MERS System.

            MERS (R) System: The system of recording transfers of mortgages
electronically maintained by MERS.

            MIN:   The Mortgage Identification Number for any MERS Mortgage
Loan.

            MOM Loan: Any Mortgage Loan as to which MERS is acting as
mortgagee, solely as nominee for the originator of such Mortgage Loan and its
successors and assigns.

            Monthly Statement:   The statement delivered to the
Certificateholders pursuant to Section 4.06.

            Moody's:   Moody's Investors Service, Inc., or any successor
thereto.   If Moody's is designated as a Rating Agency in the Preliminary
Statement, for purposes of Section 10.05(b) the address for notices to
Moody's shall be Moody's Investors Service, Inc., 99 Church Street, New York,
New York 10007, Attention: Residential Pass-Through Monitoring, or such other
address as Moody's may hereafter furnish to the Depositor or the Master
Servicer.

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

            Mortgage File: The mortgage documents listed in Section 2.01
hereof pertaining to a particular Mortgage Loan and any additional documents
delivered to the Trustee to be added to the Mortgage File pursuant to this
Agreement.

            Mortgage Loans: Such of the mortgage loans as from time to time
are transferred and assigned to the Trustee pursuant to the provisions hereof
and that are held as a part of the Trust Fund (including any REO Property),
the mortgage loans so held being identified in the Mortgage Loan Schedule,
notwithstanding foreclosure or other acquisition of title of the related
Mortgaged Property.

            Mortgage Loan Schedule: The list of Mortgage Loans (as from time
to time amended by the Master Servicer to reflect the addition of Substitute
Mortgage Loans and the deletion of Deleted Mortgage Loans pursuant to the
provisions of this Agreement) transferred to the Trustee as part of the Trust
Fund and from time to time subject to this Agreement, attached hereto as
Schedule I, setting forth the following information with respect to each
Mortgage Loan by Loan Group:

            (i)    the loan number;

            (ii)   the Mortgagor's name and the street address of the Mortgaged
                  Property, including the zip code;

            (iii) the maturity date;

            (iv)   the original principal balance;

            (v)    the Cut-off Date Principal Balance;

            (vi)   the first payment date of the Mortgage Loan;

            (vii) the Scheduled Payment in effect as of the Cut-off Date;

            (viii) the Loan-to-Value Ratio at origination;


                                      I-14
<PAGE>


            (ix)   a code indicating whether the residential dwelling at the
                  time of origination was represented to be owner-occupied;

            (x)    a code indicating whether the residential dwelling is either
                  (a) a detached single family dwelling (b) a dwelling in a de
                  minimis PUD, (c) a condominium unit or PUD (other than a de
                  minimis PUD), (d) a two- to four-unit residential property
                   or (e) a Cooperative Unit;

            (xi)   the Mortgage Rate;

            (xii) a code indicating whether the Mortgage Loan is a Countrywide
                  Mortgage Loan, a Park Granada Mortgage Loan, a Park Monaco
                  Mortgage Loan or a Park Sienna Mortgage Loan;

            (xiii)a code indicating whether the Mortgage Loan is a Lender PMI
                  Mortgage Loan and, in the case of any Lender PMI Mortgage
                  Loan, a percentage representing the amount of the related
                  interest premium charged to the borrower;

            (xiv) the purpose for the Mortgage Loan;

            (xv)   the type of documentation program pursuant to which the
                  Mortgage Loan was originated;

             (xvi) [Reserved]; and

            (xvii)a code indicating whether the Mortgage Loan is a MERS
                  Mortgage Loan.

      Such schedule shall also set forth the total of the amounts described
under (iv) and (v) above for all of the Mortgage Loans and for each Loan
Group.

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

            Mortgage Rate: The annual rate of interest borne by a Mortgage
Note from time to time, net of any interest premium charged by the mortgagee
to obtain or maintain any Primary Insurance Policy.

            Mortgaged Property: The underlying property securing a Mortgage
Loan, which, with respect to a Cooperative Loan, is the related Coop Shares
and Proprietary Lease.

            Mortgagor:   The obligor(s) on a Mortgage Note.

            MTR-A-R Interest:   As specified in the Preliminary Statement.

            National Cost of Funds Index:   The National Monthly Median Cost
of Funds Ratio to SAIF-Insured Institutions published by the Office of Thrift
Supervision.

            Net Prepayment Interest Shortfalls: As to any Distribution Date
and Loan Group, the amount by which the aggregate of the Prepayment Interest
Shortfalls for such Loan Group exceeds the sum of (a) the Compensating
Interest for such Loan Group and Distribution Date and (b) the excess, if


                                     I-15
<PAGE>


any, of the Compensating Interest for the other Loan Group for such
Distribution Date over the Prepayment Interest Shortfalls experienced by the
Mortgage Loans in such other Loan Group.

            Non-Delay Certificates:   As specified in the Preliminary
Statement.

            Non-Discount Mortgage Loan: Any Mortgage Loan in a Loan Group with
an Adjusted Net Mortgage Rate that is greater than or equal to the Required
Coupon for such Loan Group.

            Non-PO Formula Principal Amount: As to any Distribution Date and
Loan Group, the sum of (i) the sum of the applicable Non-PO Percentage of (a)
the principal portion of each Scheduled Payment (without giving effect to any
reductions thereof caused by any Debt Service Reductions or Deficient
Valuations) due on each Mortgage Loan in the related Loan Group on the related
Due Date, (b) the Stated Principal Balance of each Mortgage Loan in the
related Loan Group that was repurchased by a Seller or purchased by the Master
Servicer pursuant to this Agreement as of such Distribution Date, (c) the
Substitution Adjustment Amount in connection with any Deleted Mortgage Loan in
such Loan Group received with respect to such Distribution Date, (d) any
Insurance Proceeds or Liquidation Proceeds allocable to recoveries of
principal of Mortgage Loans in the related Loan Group that are not yet
Liquidated Mortgage Loans received during the calendar month preceding the
month of such Distribution Date, (e) with respect to each Mortgage Loan in a
Loan Group that became a Liquidated Mortgage Loan during the calendar month
preceding the month of such Distribution Date, the amount of the Liquidation
Proceeds allocable to principal received during the calendar month preceding
the month of such Distribution Date with respect to such Mortgage Loan and (f)
all Principal Prepayments for such Loan Group received during the related
Prepayment Period and (ii) (A) any Subsequent Recoveries received on the
Mortgage Loans in that Loan Group during the calendar month preceding the
month of such Distribution Date, or (B) with respect to Subsequent Recoveries
attributable to a Discount Mortgage Loan in such Loan Group which incurred a
Realized Loss after the Senior Credit Support Depletion Date, the Non-PO
Percentage of any such Subsequent Recoveries received during the calendar
month preceding the month of such Distribution Date.

            Non-PO Percentage: As to any Discount Mortgage Loan in a Loan
Group, a fraction (expressed as a percentage) the numerator of which is the
Adjusted Net Mortgage Rate of such Discount Mortgage Loan and the denominator
of which is the Required Coupon for such Loan Group. As to any Non-Discount
Mortgage Loan, 100%.

            Non-PO Pool Balance: As to any Loan Group and any Due Date, the
excess, if any, of (i) the aggregate Stated Principal Balance of all Mortgage
Loans in the related Loan Group over (ii) the sum of the PO Percentage of the
Stated Principal Balance of each Discount Mortgage Loan in that Loan Group.

            Nonrecoverable Advance: Any portion of an Advance previously made
or proposed to be made by the Master Servicer that, in the good faith judgment
of the Master Servicer, will not be ultimately recoverable by the Master
Servicer from the related Mortgagor, related Liquidation Proceeds, Subsequent
Recoveries or otherwise.

            Notice of Final Distribution: The notice to be provided pursuant
to Section 9.02 to the effect that final distribution on any of the
Certificates shall be made only upon presentation and surrender thereof.

            Notional Amount: With respect to any Distribution Date and: (1)
the Class 1-A-5 Certificates, the aggregate Class Certificate Balance of the
Class 1-A-2, Class 1-A-3 and Class 1-A-4 Certificates immediately prior to
such Distribution Date; (2) the Class 1-A-17 Certificates, the sum of (i)


                                      I-16
<PAGE>


the product of (a) the Class Certificate Balance of the Class 1-A-15
Certificates immediately prior to such Distribution Date and (b) a fraction,
the numerator of which is 0.50 and the denominator of which is 6.00, and (ii)
the product of (a) the Class Certificate Balance of the Class 1-A-16
Certificates immediately prior to such Distribution Date and (b) a fraction,
the numerator of which is 0.25 and the denominator of which is 6.00; (3) the
Class 2-A-5 Certificates the sum of (i) the product of (a) the Class
Certificate Balance of the Class 2-A-2 Certificates immediately prior to such
Distribution Date and (b) a fraction, the numerator of which is 0.75 and the
denominator of which is 6.00, (ii) the product of (a) the Class Certificate
Balance of the Class 2-A-3 Certificates immediately prior to such Distribution
Date and (b) a fraction, the numerator of which is 0.50 and the denominator of
which is 6.00 and (iii) the product of (a) the Class Certificate Balance of
the Class 2-A-4 Certificates immediately prior to such Distribution Date and
(b) a fraction, the numerator of which is 0.25 and the denominator of which is
6.00; (4) the Class 1-X Certificates, an amount equal to the aggregate of the
Stated Principal Balances of the Non-Discount Mortgage Loans in Loan Group 1
as of the Due Date in the preceding calendar month (after giving effect to
Principal Prepayments received in the Prepayment Period related to such Due
Date) and (5) the Class 2-X Certificates, an amount equal to the aggregate of
the Stated Principal Balances of the Non-Discount Mortgage Loans in Loan Group
2 as of the Due Date in the preceding calendar month (after giving effect to
Principal Prepayments received in the Prepayment Period related to such Due
Date).

            Notional Amount Certificates:   As specified in the Preliminary
Statement.

            Offered Certificates:   As specified in the Preliminary Statement.

            Officer's Certificate: A certificate (i) in the case of the
Depositor, signed by the Chairman of the Board, the Vice Chairman of the
Board, the President, a Managing Director, a Vice President (however
denominated), an Assistant Vice President, the Treasurer, the Secretary, or
one of the Assistant Treasurers or Assistant Secretaries of the Depositor,
(ii) in the case of the Master Servicer, signed by the President, an Executive
Vice President, a Vice President, an Assistant Vice President, the Treasurer,
or one of the Assistant Treasurers or Assistant Secretaries of Countrywide GP,
Inc., its general partner or (iii) if provided for in this Agreement, signed
by a Servicing Officer, as the case may be, and delivered to the Depositor and
the Trustee, as the case may be, as required by this Agreement or (iv) in the
case of any other Person, signed by an authorized officer of such Person.

            Opinion of Counsel: A written opinion of counsel, who may be
counsel for a Seller, the Depositor or the Master Servicer, including,
in-house counsel, reasonably acceptable to the Trustee; provided, however,
that with respect to the interpretation or application of the REMIC
Provisions, such counsel must (i) in fact be independent of a Seller, the
Depositor and the Master Servicer, (ii) not have any direct financial interest
in a Seller, the Depositor or the Master Servicer or in any affiliate thereof,
and (iii) not be connected with a Seller, the Depositor or the Master Servicer
as an officer, employee, promoter, underwriter, trustee, partner, director or
person performing similar functions.

            Optional Termination: The termination of the trust created
hereunder in connection with the purchase of the Mortgage Loans pursuant to
Section 9.01(a) hereof.

            Original Applicable Credit Support Percentage: With respect to
each of the following Classes of Certificates, the corresponding percentage
described below:

                                       Original
                                      Applicable
                                        Credit
                                         Support
           Class of Certificates       Percentage
           ---------------------       ----------
           Class M.................       5.75%


                                     I-17
<PAGE>


           Class B-1...............       3.15%
           Class B-2...............       2.10%
           Class B-3...............       1.35%
           Class B-4...............       0.80%
           Class B-5...............       0.40%

            Original Mortgage Loan:   The mortgage loan refinanced in
connection with the origination of a Refinancing Mortgage Loan.

            Original Subordinate Principal Balance: On or prior to a Senior
Termination Date, the Subordinated Percentage for a Loan Group of the
aggregate of the applicable Non-PO Percentage of the Stated Principal Balances
of the Mortgage Loans in such Loan Group, in each case as of the Cut-off Date;
or if such date is after a Senior Termination Date, the aggregate of the Class
Certificate Balances of the Subordinated Certificates as of the Closing Date.

            OTS:   The Office of Thrift Supervision.

            Outside Reference Date:   As to any Interest Accrual Period for
the COFI Certificates, the close of business on the tenth day thereof.

            Outstanding:   With respect to the Certificates as of any date of
determination, all Certificates theretofore executed and authenticated under
this Agreement except:

            (i) Certificates theretofore canceled by the Trustee or delivered
            to the Trustee for cancellation; and

            (ii) Certificates in exchange for which or in lieu of which other
            Certificates have been executed and delivered by the Trustee
            pursuant to this Agreement.

            Outstanding Mortgage Loan: As of any Due Date, a Mortgage Loan
with a Stated Principal Balance greater than zero, which was not the subject
of a Principal Prepayment in Full prior to such Due Date or during the
Prepayment Period related to such Due Date and which did not become a
Liquidated Mortgage Loan prior to such Due Date.

            Overcollateralized Group:   As defined in Section 4.05.

            Ownership Interest: As to any Residual Certificate, any ownership
interest in such Certificate including any interest in such Certificate as the
Holder thereof and any other interest therein, whether direct or indirect,
legal or beneficial.

            Park Granada: Park Granada LLC, a Delaware limited liability
company, and its successors and assigns, in its capacity as the seller of the
Park Granada Mortgage Loans to the Depositor.

            Park Granada Mortgage Loans:   The Mortgage Loans identified as
such on the Mortgage Loan Schedule for which Park Granada is the applicable
Seller.

            Park Monaco:   Park Monaco Inc., a Delaware corporation, and its
successors and assigns, in its capacity as the seller of the Park Monaco
Mortgage Loans to the Depositor.

            Park Monaco Mortgage Loans:   The Mortgage Loans identified as
such on the Mortgage Loan Schedule for which Park Monaco is the applicable
Seller.


                                     I-18
<PAGE>


            Park Sienna: Park Sienna LLC, a Delaware limited liability
company, and its successors and assigns, in its capacity as the seller of the
Park Sienna Mortgage Loans to the Depositor.

            Park Sienna Mortgage Loans:   The Mortgage Loans identified as
such on the Mortgage Loan Schedule for which Park Sienna is the applicable
Seller.

            Pass-Through Rate: For any interest bearing Class of Certificates
or Component, the per annum rate set forth or calculated in the manner
described in the Preliminary Statement.

            Percentage Interest: As to any Certificate, the percentage
interest evidenced thereby in distributions required to be made on the related
Class, such percentage interest being set forth on the face thereof or equal
to the percentage obtained by dividing the Denomination of such Certificate by
the aggregate of the Denominations of all Certificates of the same Class.

             Performance Certification:   As defined in Section 11.05.

            Permitted Investments:   At any time, any one or more of the
following obligations and securities:

            (i)    obligations of the United States or any agency thereof,
                   provided such obligations are backed by the full faith and
                  credit of the United States;

            (ii)   general obligations of or obligations guaranteed by any
                  state of the United States or the District of Columbia
                  receiving the highest long-term debt rating of each Rating
                  Agency, or such lower rating as will not result in the
                  downgrading or withdrawal of the ratings then assigned to
                  the Certificates by each Rating Agency;

            (iii) commercial or finance company paper which is then receiving
                  the highest commercial or finance company paper rating of
                  each Rating Agency, or such lower rating as will not result
                  in the downgrading or withdrawal of the ratings then
                  assigned to the Certificates by each Rating Agency;

            (iv)   certificates of deposit, demand or time deposits, or
                  bankers' acceptances issued by any depository institution or
                  trust company incorporated under the laws of the United
                  States or of any state thereof and subject to supervision
                  and examination by federal and/or state banking authorities,
                  provided that the commercial paper and/or long term
                  unsecured debt obligations of such depository institution or
                  trust company (or in the case of the principal depository
                   institution in a holding company system, the commercial
                  paper or long-term unsecured debt obligations of such
                  holding company, but only if Moody's is not a Rating Agency)
                  are then rated one of the two highest long-term and the
                  highest short-term ratings of each Rating Agency for such
                  securities, or such lower ratings as will not result in the
                  downgrading or withdrawal of the rating then assigned to the
                  Certificates by either Rating Agency;

            (v)    repurchase obligations with respect to any security
                  described in clauses (i) and (ii) above, in either case
                  entered into with a depository institution or trust company
                  (acting as principal) described in clause (iv) above;


                                     I-19
<PAGE>


            (vi)   units of a taxable money-market portfolio having the highest
                   rating assigned by each Rating Agency (except if Fitch is a
                  Rating Agency and has not rated the portfolio, the highest
                  rating assigned by Moody's) and restricted to obligations
                  issued or guaranteed by the United States of America or
                  entities whose obligations are backed by the full faith and
                  credit of the United States of America and repurchase
                  agreements collateralized by such obligations; and

             (vii) such other relatively risk free investments bearing interest
                  or sold at a discount acceptable to each Rating Agency as
                  will not result in the downgrading or withdrawal of the
                  rating then assigned to the Certificates by either Rating
                  Agency, as evidenced by a signed writing delivered by each
                  Rating Agency

provided, that no such instrument shall be a Permitted Investment if such
instrument evidences the right to receive interest only payments with respect
to the obligations underlying such instrument.

            Permitted Transferee: Any person other than (i) the United States,
any State or political subdivision thereof, or any agency or instrumentality
of any of the foregoing, (ii) a foreign government, International Organization
or any agency or instrumentality of either of the foregoing, (iii) an
organization (except certain farmers' cooperatives described in section 521 of
the Code) which is exempt from tax imposed by Chapter 1 of the Code (including
the tax imposed by section 511 of the Code on unrelated business taxable
income) on any excess inclusions (as defined in section 860E(c)(l) of the
Code) with respect to any Residual Certificate, (iv) rural electric and
telephone cooperatives described in section 1381(a)(2)(C) of the Code, (v) an
"electing large partnership" as defined in Section 775 of the Code, (vi) a
Person that is not a citizen or resident of the United States, a corporation,
partnership, or other entity created or organized in or under the laws of the
United States, any State thereof or the District of Columbia, or an estate or
trust whose income from sources without the United States is includible in
gross income for United States federal income tax purposes regardless of its
connection with the conduct of a trade or business within the United States or
a trust if a court within the United States is able to exercise primary
supervision over the administration of the trust and one or more United States
persons have the authority to control all substantial decisions of the trust
unless such Person has furnished the transferor and the Trustee with a duly
completed Internal Revenue Service Form W-8ECI or any applicable successor
form, and (vii) any other Person so designated by the Depositor based upon an
Opinion of Counsel that the Transfer of an Ownership Interest in a Residual
Certificate to such Person may cause any REMIC hereunder to fail to qualify as
a REMIC at any time that the Certificates are outstanding. The terms "United
States," "State" and "International Organization" shall have the meanings set
forth in section 7701 of the Code or successor provisions. A corporation will
not be treated as an instrumentality of the United States or of any State or
political subdivision thereof for these purposes if all of its activities are
subject to tax and, with the exception of the Federal Home Loan Mortgage
Corporation, a majority of its board of directors is not selected by such
government unit.

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

            Physical Certificate:   As specified in the Preliminary Statement.

            Plan: An "employee benefit plan" as defined in section 3(3) of
ERISA that is subject to Title I of ERISA, a "plan" as defined in section 4975
of the Code that is subject to section 4975 of the Code, or any Person
investing on behalf of or with plan assets (as defined in 29 CFR ss.2510.3-101
or otherwise under ERISA) of such an employee benefit plan or plan.


                                     I-20
<PAGE>


            Planned Balance: With respect to any group of Planned Principal
Classes or Components in the aggregate and any Distribution Date appearing in
Schedule V hereto, the Aggregate Planned Balance for such group and
Distribution Date. With respect to any other Planned Principal Class or
Component and any Distribution Date appearing in Schedule V hereto, the
applicable amount appearing opposite such Distribution Date for such Class or
Component.

            Planned Principal Classes:   As specified in the Preliminary
Statement.

            PO Formula Principal Amount: As to any Distribution Date and
related Class PO Component, the sum of (i) the sum of the applicable PO
Percentage of (a) the principal portion of each Scheduled Payment (without
giving effect to any reductions thereof caused by any Debt Service Reductions
or Deficient Valuations) due on each Mortgage Loan in the related Loan Group
on the related Due Date, (b) the Stated Principal Balance of each Mortgage
Loan in the related Loan Group that was repurchased by a Seller or purchased
by the Master Servicer pursuant to this Agreement as of such Distribution
Date, (c) the Substitution Adjustment Amount in connection with any Deleted
Mortgage Loan in the related Loan Group received with respect to such
Distribution Date, (d) any Insurance Proceeds or Liquidation Proceeds
allocable to recoveries of principal of Mortgage Loans in the related Loan
Group that are not yet Liquidated Mortgage Loans received during the calendar
month preceding the month of such Distribution Date, (e) with respect to each
Mortgage Loan in the related Loan Group that became a Liquidated Mortgage Loan
during the calendar month preceding the month of such Distribution Date, the
amount of Liquidation Proceeds allocable to principal received with respect to
such Mortgage Loan during the calendar month preceding the month of such
Distribution Date with respect to such Mortgage Loan, and (f) all Principal
Prepayments with respect to the Mortgage Loans in the related Loan Group
received during the related Prepayment Period and (ii) with respect to
Subsequent Recoveries attributable to a Discount Mortgage Loan in the related
Loan Group which incurred a Realized Loss after the Senior Credit Support
Depletion Date, the PO Percentage of any such Subsequent Recoveries on the
Mortgage Loans in such Loan Group received during the calendar month preceding
the month of such Distribution Date.

            PO Percentage: As to any Discount Mortgage Loan in a Loan Group, a
fraction (expressed as a percentage) the numerator of which is the excess of
the Required Coupon for such Loan Group over the Adjusted Net Mortgage Rate of
such Discount Mortgage Loan and the denominator of which is such Required
Coupon. As to any Non-Discount Mortgage Loan, 0%.

            Pool Stated Principal Balance: As of any date of determination,
the aggregate of the Stated Principal Balances of the Outstanding Mortgage
Loans.

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

            Prepayment Charge Amount:   Not applicable.

            Prepayment Charge Period:   With respect to any Mortgage Loan, the
period of time during which a Prepayment Charge may be imposed.

            Prepayment Interest Excess: As to any Principal Prepayment
received by Countrywide Home Loans Servicing LP from the first day through the
fifteenth day of any calendar month (other than the calendar month in which
the Cut-off Date occurs), all amounts paid by the related Mortgagor in respect
of interest on such Principal Prepayment. All Prepayment Interest Excess shall
be paid to the Master Servicer as additional master servicing compensation.


                                     I-21
<PAGE>


            Prepayment Interest Shortfall: As to any Distribution Date,
Mortgage Loan and Principal Prepayment received on or after the sixteenth day
of the month preceding the month of such Distribution Date (or, in the case of
the first Distribution Date, on or after February 1, 2007) and on or before
the last day of the month preceding the month of such Distribution Date, the
amount, if any, by which one month's interest at the related Mortgage Rate,
net of the Master Servicing Fee Rate, on such Principal Prepayment exceeds the
amount of interest paid in connection with such Principal Prepayment.

            Prepayment Period: As to any Distribution Date and the related Due
Date, the period from the 16th day of the calendar month immediately preceding
the month of such Distribution Date (or, in the case of the first Distribution
Date, from February 1, 2007) through the 15th day of the calendar month of
such Distribution Date.

            Prepayment Shift Percentage: As to any Distribution Date occurring
during the five years beginning on the first Distribution Date, 0%. For any
Distribution Date occurring on or after the fifth anniversary of the first
Distribution Date, as follows: for any Distribution Date in the first year
thereafter, 30%; for any Distribution Date in the second year thereafter, 40%;
for any Distribution Date in the third year thereafter, 60%; for any
Distribution Date in the fourth year thereafter, 80%; and for any Distribution
Date thereafter, 100%.

            Primary Insurance Policy: Each policy of primary mortgage guaranty
insurance or any replacement policy therefor with respect to any Mortgage
Loan.

            Prime Rate: The prime commercial lending rate of The Bank of New
York, as publicly announced to be in effect from time to time. The Prime Rate
shall be adjusted automatically, without notice, on the effective date of any
change in such prime commercial lending rate. The Prime Rate is not
necessarily The Bank of New York's lowest rate of interest.

            Principal Only Certificates: As specified in the Preliminary
Statement.

            Principal Prepayment: Any payment of principal by a Mortgagor on a
Mortgage Loan that is received in advance of its scheduled Due Date and is not
accompanied by an amount representing scheduled interest due on any date or
dates in any month or months subsequent to the month of prepayment. Partial
Principal Prepayments shall be applied by the Master Servicer in accordance
with the terms of the related Mortgage Note.

            Principal Prepayment in Full: Any Principal Prepayment made by a
Mortgagor of the entire principal balance of a Mortgage Loan.

            Principal Relocation Payment: A payment from any Loan Group to an
Lower Tier REMIC Regular Interest other than a Regular Interest corresponding
to that Loan Group as provided in the Preliminary Statement. Principal
Relocation Payments from a Loan Group shall be made of the amounts in respect
of principal from the Mortgage Loans of the Loan Group and shall include a
proportionate allocation of the Realized Losses from the Mortgage Loans of the
Loan Group.

            Priority Amount: As to any Distribution Date, the sum of (i) the
product of (A) the Senior Percentage for Loan Group 1, (B) the Scheduled
Principal Distribution Amount for Loan Group 1, (C) the Shift Percentage and
(D) the Priority Percentage and (ii) the product of (A) the Senior Prepayment
Percentage for Loan Group 1, (B) the Unscheduled Principal Distribution Amount
for Loan Group 1, (C) the Prepayment Shift Percentage and (D) the Priority
Percentage.


                                     I-22
<PAGE>


            Priority Percentage: As to any Distribution Date, the percentage
equivalent of a fraction, the numerator of which is the aggregate Class
Certificate Balance of the Class 1-A-9 and Class 1-A-10 Certificates
immediately prior to such Distribution Date and the denominator of which is
the aggregate Class Certificate Balance of the Group 1 Senior Certificates
(other than the Class PO-1 Component) immediately prior to such Distribution
Date.

            Private Certificate:   As specified in the Preliminary Statement.

            Pro Rata Share: As to any Distribution Date, the Subordinated
Principal Distribution Amount and any Class of Subordinated Certificates, the
portion of the Subordinated Principal Distribution Amount allocable to such
Class, equal to the product of the Subordinated Principal Distribution Amount
on such Distribution Date and a fraction, the numerator of which is the
related Class Certificate Balance thereof and the denominator of which is the
aggregate of the Class Certificate Balances of the Subordinated Certificates.

            Proprietary Lease: With respect to any Cooperative Unit, a lease
or occupancy agreement between a Cooperative Corporation and a holder of
related Coop Shares.

            Prospectus: The Prospectus dated November 14, 2006 generally
relating to mortgage pass-through certificates to be sold by the Depositor.

            Prospectus Supplement:   The Prospectus Supplement dated February
26, 2007 relating to the Offered Certificates.

            PUD:   Planned Unit Development.

            Purchase Price: With respect to any Mortgage Loan required to be
purchased by a Seller pursuant to Section 2.02 or 2.03 hereof or purchased at
the option of the Master Servicer pursuant to Section 3.11, an amount equal to
the sum of (i) 100% of the unpaid principal balance of the Mortgage Loan on
the date of such purchase, (ii) accrued interest thereon at the applicable
Mortgage Rate (or at the applicable Adjusted Mortgage Rate if (x) the
purchaser is the Master Servicer or (y) if the purchaser is Countrywide and
Countrywide is an affiliate of the Master Servicer) from the date through
which interest was last paid by the Mortgagor to the Due Date in the month in
which the Purchase Price is to be distributed to Certificateholders and (iii)
costs and damages incurred by the Trust Fund in connection with a repurchase
pursuant to Section 2.03 hereof that arises out of a violation of any
predatory or abusive lending law with respect to the related Mortgage Loan.

            Qualified Insurer: A mortgage guaranty insurance company duly
qualified as such under the laws of the state of its principal place of
business and each state having jurisdiction over such insurer in connection
with the insurance policy issued by such insurer, duly authorized and licensed
in such states to transact a mortgage guaranty insurance business in such
states and to write the insurance provided by the insurance policy issued by
it, approved as a FNMA-approved mortgage insurer and having a claims paying
ability rating of at least "AA" or equivalent rating by a nationally
recognized statistical rating organization. Any replacement insurer with
respect to a Mortgage Loan must have at least as high a claims paying ability
rating as the insurer it replaces had on the Closing Date.

            Rating Agency: Each of the Rating Agencies specified in the
Preliminary Statement. If any such organization or a successor is no longer in
existence, "Rating Agency" shall be such nationally recognized statistical
rating organization, or other comparable Person, identified as a rating agency
under the Underwriter's Exemption, as is designated by the Depositor, notice
of which designation shall be


                                     I-23
<PAGE>


given to the Trustee. References herein to a given rating category of a Rating
Agency shall mean such rating category without giving effect to any modifiers.

            Realized Loss: With respect to each Liquidated Mortgage Loan, an
amount (not less than zero or more than the Stated Principal Balance of the
Mortgage Loan) as of the date of such liquidation, equal to (i) the Stated
Principal Balance of the Liquidated Mortgage Loan as of the date of such
liquidation, plus (ii) interest at the Adjusted Net Mortgage Rate from the Due
Date as to which interest was last paid or advanced (and not reimbursed) to
Certificateholders up to the Due Date in the month in which Liquidation
Proceeds are required to be distributed on the Stated Principal Balance of
such Liquidated Mortgage Loan from time to time, minus (iii) the Liquidation
Proceeds, if any, received during the month in which such liquidation
occurred, to the extent applied as recoveries of interest at the Adjusted Net
Mortgage Rate and to principal of the Liquidated Mortgage Loan. With respect
to each Mortgage Loan which has become the subject of a Deficient Valuation,
if the principal amount due under the related Mortgage Note has been reduced,
the difference between the principal balance of the Mortgage Loan outstanding
immediately prior to such Deficient Valuation and the principal balance of the
Mortgage Loan as reduced by the Deficient Valuation.

            To the extent the Master Servicer receives Subsequent Recoveries
with respect to any Liquidated Mortgage Loan, the amount of the Realized Loss
with respect to that Mortgage Loan will be reduced by such Subsequent
Recoveries.

            Recognition Agreement: With respect to any Cooperative Loan, an
agreement between the Cooperative Corporation and the originator of such
Mortgage Loan which establishes the rights of such originator in the
Cooperative Property.

            Recombination Group: The Class or Classes of Depositable
Certificates and the related Class or Classes of Exchangeable Certificates
included within any particular "Recombination" specified in Schedule VII.

            Record Date: As to any Distribution Date, the close of business on
the last Business Day of the month preceding the month of such Distribution
Date.

            Reference Bank:   As defined in Section 4.08(b).

            Refinancing Mortgage Loan:   Any Mortgage Loan originated in
connection with the refinancing of an existing mortgage loan.

            Regular Certificates:   As specified in the Preliminary Statement.

            Regulation AB:   Subpart 229.1100 - Asset Backed Securities
(Regulation AB), 17 C.F.R. ss.ss.229.1100-229.1123, as such may be amended from
time to time, and subject to such clarification and interpretation as have
been provided by the Commission in the adopting release (Asset-Backed
Securities, Securities Act Release No. 33-8518, 70 Fed. Reg. 1,506, 1,531
(Jan. 7, 2005)) or by the staff of the Commission, or as may be provided by
the Commission or its staff from time to time.

            Relief Act:   The Servicemembers Civil Relief Act.

            Relief Act Reductions: With respect to any Distribution Date and
any Mortgage Loan as to which there has been a reduction in the amount of
interest collectible thereon for the most recently ended calendar month as a
result of the application of the Relief Act or any similar state laws, the
amount,


                                     I-24
<PAGE>


if any, by which (i) interest collectible on such Mortgage Loan for the most
recently ended calendar month is less than (ii) interest accrued thereon for
such month pursuant to the Mortgage Note.

            REMIC: A "real estate mortgage investment conduit" within the
meaning of section 860D of the Code.

            REMIC Change of Law: Any proposed, temporary or final regulation,
revenue ruling, revenue procedure or other official announcement or
interpretation relating to REMICs and the REMIC Provisions issued after the
Closing Date.

            REMIC Provisions: Provisions of the federal income tax law
relating to real estate mortgage investment conduits, which appear at sections
860A through 860G of Subchapter M of Chapter 1 of the Code, and related
provisions, and regulations promulgated thereunder, as the foregoing may be in
effect from time to time as well as provisions of applicable state laws.

            REO Property: A Mortgaged Property acquired by the Trust Fund
through foreclosure or deed-in-lieu of foreclosure in connection with a
defaulted Mortgage Loan.

            Reportable Event: Any event required to be reported on Form 8-K
and, in any event, the following:

      (a)    entry into a definitive agreement related to the Trust Fund, the
      Certificates or the Mortgage Loans, or an amendment to a Transaction
      Document, even if the Depositor is not a party to such agreement (e.g.,
      a servicing agreement with a servicer contemplated by Item 1108(a)(3) of
      Regulation AB);

      (b)    termination of a Transaction Document (other than by expiration of
      the agreement on its stated termination date or as a result of all
      parties completing their obligations under such agreement), even if the
      Depositor is not a party to such agreement (e.g., a servicing agreement
      with a servicer contemplated by Item 1108(a)(3) of Regulation AB);

      (c)    with respect to the Master Servicer only, if the Master Servicer
      becomes aware of any bankruptcy or receivership with respect to
      Countrywide, the Depositor, the Master Servicer, any Subservicer, the
      Trustee, any enhancement or support provider contemplated by Items
      1114(b) or 1115 of Regulation AB, or any other material party
      contemplated by Item 1101(d)(1) of Regulation AB;

      (d)    with respect to the Trustee, the Master Servicer and the Depositor
      only, the occurrence of an early amortization, performance trigger or
       other event, including an Event of Default under this Agreement;

      (e)    the resignation, removal, replacement, substitution of the Master
      Servicer, any Subservicer or the Trustee;

      (f)    with respect to the Master Servicer only, if the Master Servicer
      becomes aware that (i) any material enhancement or support specified in
      Item 1114(a)(1) through (3) of Regulation AB or Item 1115 of Regulation
      AB that was previously applicable regarding one or more Classes of the
       Certificates has terminated other than by expiration of the contract on
      its stated termination date or as a result of all parties completing
      their obligations under such agreement; (ii) any material enhancement
      specified in Item 1114(a)(1) through (3) of Regulation AB or Item 1115
      of Regulation AB has been added with respect to one or more Classes of
      the Certificates; or (iii) any

                                     I-25
<PAGE>

      existing material enhancement or support specified in Item 1114(a)(1)
      through (3) of Regulation AB or Item 1115 of Regulation AB with respect
      to one or more Classes of the Certificates has been materially amended
      or modified; and

      (g)    with respect to the Trustee, the Master Servicer and the Depositor
      only, a required distribution to Holders of the Certificates is not made
      as of the required Distribution Date under this Agreement.

            Reporting Subcontractor: With respect to the Master Servicer or
the Trustee, any Subcontractor determined by such Person pursuant to Section
11.08(b) to be "participating in the servicing function" within the meaning of
Item 1122 of Regulation AB. References to a Reporting Subcontractor shall
refer only to the Subcontractor of such Person and shall not refer to
Subcontractors generally.

            Request for Release: The Request for Release submitted by the
Master Servicer to the Trustee, substantially in the form of Exhibits M and N,
as appropriate.

            Required Coupon: With respect to the Mortgage Loans in Loan Group
1 and Loan Group 2, 6.00% per annum.

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

            Reserve Fund: The separate fund created and initially maintained
by the Supplemental Interest Trustee pursuant to Section 3.05(g) in the name
of the Supplemental Interest Trustee for the benefit of the Holders of the
Covered Certificates and designated "The Bank of New York in trust for
registered holders of CWALT, Inc., Alternative Loan Trust 2007-3T1, Mortgage
Pass-Through Certificates, Series 2007-3T1." Funds in the Corridor Contract
Reserve Fund shall be held in trust for the Holders of the Covered
Certificates for the uses and purposes set forth in this Agreement. For all
federal income tax purposes, the Corridor Contract Reserve Fund will be
beneficially owned by the Underwriter (Senior).

            Residual Certificates:   As specified in the Preliminary Statement.

            Responsible Officer: When used with respect to the Trustee, any
Vice President, any Assistant Vice President, the Secretary, any Assistant
Secretary, any Trust Officer or any other officer of the Trustee customarily
performing functions similar to those performed by any of the above designated
officers and also to whom, with respect to a particular matter, such matter is
referred because of such officer's knowledge of and familiarity with the
particular subject.

            Restricted Classes:   As defined in Section 4.02(e).

            S&P: Standard & Poor's, a division of The McGraw-Hill Companies,
Inc. If S&P is designated as a Rating Agency in the Preliminary Statement, for
purposes of Section 10.05(b) the address for notices to S&P shall be Standard
& Poor's, 55 Water Street, New York, New York 10041, Attention: Mortgage
Surveillance Monitoring, or such other address as S&P may hereafter furnish to
the Depositor and the Master Servicer.

            Sarbanes-Oxley Certification: As defined in Section 11.05.


                                     I-26
<PAGE>


            Scheduled Balances: With respect to any group of Scheduled
Principal Classes or Components in the aggregate and any Distribution Date
appearing in Schedule V hereto, the Aggregate Scheduled Balance for such group
and Distribution Date. With respect to any other Scheduled Principal Class or
Component and any Distribution Date appearing in Schedule V hereto, the
applicable amount appearing opposite such Distribution Date for such Class or
Component.

            Scheduled Principal Classes:   As specified in the Preliminary
Statement.

            Scheduled Payment: The scheduled monthly payment on a Mortgage
Loan due on any Due Date allocable to principal and/or interest on such
Mortgage Loan which, unless otherwise specified herein, shall give effect to
any related Debt Service Reduction and any Deficient Valuation that affects
the amount of the monthly payment due on such Mortgage Loan.

            Scheduled Principal Distribution Amount: As to any Distribution
Date and Loan Group, an amount equal to the Non-PO Percentage of all amounts
described in subclauses (a) through (d) of clause (i) of the definition of
Non-PO Formula Principal Amount for such Loan Group and Distribution Date.

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

            Seller:   Countrywide, Park Granada, Park Monaco or Park Sienna,
as applicable.

            Senior Certificate Group:   As specified in the Preliminary
Statement.

            Senior Certificates:   As specified in the Preliminary Statement.

            Senior Credit Support Depletion Date:   The date on which the
Class Certificate Balance of each Class of Subordinated Certificates has been
reduced to zero.

            Senior Percentage: As to any Senior Certificate Group and
Distribution Date, the percentage equivalent of a fraction the numerator of
which is the aggregate Class Certificate Balance of the Senior Certificates of
such Senior Certificate Group (other than the related Class PO Component and
Notional Amount Certificates) immediately prior to such Distribution Date and
the denominator of which is the aggregate of the applicable Non-PO Percentage
of the Stated Principal Balance of each Mortgage Loan in the related Loan
Group as of the Due Date occurring in the month prior to the month of such
Distribution Date (after giving effect to Principal Prepayments received in
the Prepayment Period related to such prior Due Date); provided, however, that
on any Distribution Date after a Senior Termination Date, the Senior
Percentage for the Senior Certificates of the remaining Senior Certificate
Group is the percentage equivalent of a fraction, the numerator of which is
the aggregate Class Certificate Balance of the Class of Senior Certificates
(other than the related Class PO Component and Notional Amount Certificates)
of such remaining Senior Certificate Group immediately prior to such
Distribution Date and the denominator is the aggregate Class Certificate
Balance of all Classes of Certificates (other than the Class PO Certificates
and the Notional Amount Certificates), immediately prior to such Distribution
Date.

            Senior Prepayment Percentage: As to a Senior Certificate Group and
any Distribution Date during the five years beginning on the first
Distribution Date, 100%. The Senior Prepayment Percentage for any Distribution
Date occurring on or after the fifth anniversary of the first Distribution
Date will, except as provided herein, be as follows: for any Distribution Date
in the first year thereafter, the related Senior Percentage plus 70% of the
related Subordinated Percentage for such Distribution Date; for any
Distribution Date in the second year thereafter, the related Senior Percentage
plus 60% of the related Subordinated Percentage for such Distribution Date;
for any Distribution Date in the third year


                                     I-27
<PAGE>


thereafter, the related Senior Percentage plus 40% of the related Subordinated
Percentage for such Distribution Date; for any Distribution Date in the fourth
year thereafter, the related Senior Percentage plus 20% of the related
Subordinated Percentage for such Distribution Date; and for any Distribution
Date thereafter, the related Senior Percentage for such Distribution Date
(unless on any Distribution Date the Senior Percentage exceeds the initial
Senior Percentage of such Senior Certificate Group, in which case the Senior
Prepayment Percentage for each Senior Certificate Group for such Distribution
Date will once again equal 100%). Notwithstanding the foregoing, no decrease
in any Senior Prepayment Percentage will occur unless both of the Senior Step
Down Conditions are satisfied with respect to all of the Loan Groups.

            Senior Principal Distribution Amount: As to any Distribution Date
and Senior Certificate Group, the sum of (i) the sum of the related Senior
Percentage of the applicable Non-PO Percentage of all amounts described in
subclauses (a) through (d) of clause (i) of the definition of "Non-PO Formula
Principal Amount" with respect to the related Loan Group for such Distribution
Date, (ii) with respect to any Mortgage Loan in the related Loan Group that
became a Liquidated Mortgage Loan during the calendar month preceding the
month of such Distribution Date, the lesser of (x) the related Senior
Percentage of the applicable Non-PO Percentage of the Stated Principal Balance
of such Mortgage Loan and (y) the related Senior Prepayment Percentage of the
applicable Non-PO Percentage of the amount of the Liquidation Proceeds
allocable to principal received with respect to the Mortgage Loan and (iii)
the sum of (x) the related Senior Prepayment Percentage of the applicable
Non-PO Percentage of the amounts described in subclause (f) of clause (i) of
the definition of "Non-PO Formula Principal Amount" with respect to the
related Loan Group for such Distribution Date plus (y) the related Senior
Prepayment Percentage of any Subsequent Recoveries described in clause (ii) of
the definition of "Non-PO Formula Principal Amount" for such Distribution Date
; provided, however, on any Distribution Date after a Senior Termination Date,
the Senior Principal Distribution Amount for the remaining Senior Certificate
Group will be calculated pursuant to the above formula based on all the
Mortgage Loans in the Mortgage Pool, as opposed to the Mortgage Loans in the
related Loan Group and, if such Distribution Date is a Senior Termination
Date, shall be reduced by the amount of the principal distribution made
pursuant to (a) if the Group 1 Senior Certificates are reduced to zero on such
date, Section 4.02(a)(1)(iv)(y) and (b) if the Group 2 Senior Certificates are
reduced to zero on such date, Section 4.02(a)(2)(iv)(y).

             Senior Step Down Conditions: With respect to the Mortgage Loans in
a Loan Group: (i) the outstanding principal balance of all Mortgage Loans
delinquent 60 days or more (including Mortgage Loans in foreclosure, REO
Property and Mortgage Loans the Mortgagors of which are in bankruptcy)
(averaged over the preceding six month period), as a percentage of (a) if such
date is on or prior to a Senior Termination Date, the Subordinated Percentage
for such Loan Group of the aggregate of the applicable Non-PO Percentage of
the aggregate Stated Principal Balance of the Mortgage Loans in that Loan
Group, or (b) if such date is after a Senior Termination Date, the aggregate
Class Certificate Balance of the Subordinated Certificates, does not equal or
exceed 50%, and (ii) cumulative Realized Losses on the Mortgage Loans in each
Loan Group do not exceed: (a) commencing with the Distribution Date on the
fifth anniversary of the first Distribution Date, 30% of the Original
Subordinate Principal Balance, (b) commencing with the Distribution Date on
the sixth anniversary of the first Distribution Date, 35% of the Original
Subordinate Principal Balance, (c) commencing with the Distribution Date on
the seventh anniversary of the first Distribution Date, 40% of the Original
Subordinate Principal Balance, (d) commencing with the Distribution Date on
the eighth anniversary of the first Distribution Date, 45% of the Original
Subordinate Principal Balance, and (e) commencing with the Distribution Date
on the ninth anniversary of the first Distribution Date, 50% of the Original
Subordinate Principal Balance.

            Senior Termination Date: For any Senior Certificate Group, the
Distribution Date on which the aggregate Class Certificate Balance of the
Senior Certificates in such Senior Certificate Group (other than the related
Class PO Component) has been reduced to zero.


                                     I-28
<PAGE>


            Servicing Advances: All customary, reasonable and necessary "out
of pocket" costs and expenses incurred in the performance by the Master
Servicer of its servicing obligations, including, but not limited to, the cost
of (i) the preservation, restoration and protection of a Mortgaged Property,
(ii) any expenses reimbursable to the Master Servicer pursuant to Section 3.11
and any enforcement or judicial proceedings, including foreclosures, (iii) the
management and liquidation of any REO Property and (iv) compliance with the
obligations under Section 3.09.

            Servicing Criteria: The "servicing criteria" set forth in Item
1122(d) of Regulation AB.

            Servicing Officer: Any officer of the Master Servicer involved in,
or responsible for, the administration and servicing of the Mortgage Loans
whose name and facsimile signature appear on a list of servicing officers
furnished to the Trustee by the Master Servicer on the Closing Date pursuant
to this Agreement, as such list may from time to time be amended.

            Shift Percentage: As to any Distribution Date occurring during the
five years beginning on the first Distribution Date, 0%. For any Distribution
Date occurring on or after the fifth anniversary of the first Distribution
Date, 100%.

            Startup Day:   The Closing Date.

            Stated Principal Balance: As to any Mortgage Loan and Due Date,
the unpaid principal balance of such Mortgage Loan as of such Due Date, as
specified in the amortization schedule at the time relating thereto (before
any adjustment to such amortization schedule by reason of any moratorium or
similar waiver or grace period) minus the sum of: (i) any previous partial
Principal Prepayments and the payment of principal due on such Due Date,
irrespective of any delinquency in payment by the related Mortgagor, (ii)
Liquidation Proceeds allocable to principal (other than with respect to any
Liquidated Mortgage Loan) received in the prior calendar month and Principal
Prepayments received through the last day of the related Prepayment Period, in
each case, with respect to that Mortgage Loan and (iii) any Realized Loss
previously incurred in connection with a Deficient Valuation. The Stated
Principal Balance of any Mortgage Loan that becomes a Liquidated Mortgage Loan
will be zero on each date following the Due Period in which such Mortgage Loan
becomes a Liquidated Mortgage Loan.

            Streamlined Documentation Mortgage Loan: Any Mortgage Loan
originated pursuant to Countrywide's Streamlined Loan Documentation Program
then in effect. For the purposes of this Agreement, a Mortgagor is eligible
for a mortgage pursuant to Countrywide's Streamlined Loan Documentation
Program if that Mortgagor is refinancing an existing mortgage loan that was
originated or acquired by Countrywide where, among other things, the mortgage
loan has not been more than 30 days delinquent in payment during the previous
twelve-month period.

            Strike Rate:   With respect to each Class of Covered Certificates,
5.25%.

            Subcontractor: Any vendor, subcontractor or other Person that is
not responsible for the overall servicing (as "servicing" is commonly
understood by participants in the mortgage-backed securities market) of
Mortgage Loans but performs one or more discrete functions identified in Item
1122(d) of Regulation AB with respect to Mortgage Loans under the direction or
authority of the Master Servicer or a Subservicer or the Trustee, as the case
may be.

            Subordinated Certificates:   As specified in the Preliminary
Statement.

            Subordinated Percentage: As to any Loan Group and Distribution
Date on or prior to a Senior Termination Date, 100% minus the Senior
Percentage for the Senior Certificate Group relating to


                                     I-29
<PAGE>


such Loan Group for such Distribution Date. As to any Distribution Date after
a Senior Termination Date, 100% minus the Senior Percentage for such
Distribution Date.

            Subordinated Portion: For any Distribution Date, an amount equal
to the aggregate Stated Principal Balance of the Mortgage Loans in the related
Loan Group as of the end of the Prepayment Period related to the immediately
preceding Distribution Date, minus the aggregate Class Certificate Balance of
the related Senior Certificates immediately prior to such Distribution Date.

            Subordinated Prepayment Percentage:   As to any Distribution Date
and Loan Group, 100% minus the related Senior Prepayment Percentage for such
Distribution Date.

            Subordinated Principal Distribution Amount: With respect to any
Distribution Date and Loan Group, an amount equal to the excess of (A) the
sum, not less than zero, of (i) the Subordinated Percentage of the applicable
Non-PO Percentage for such Loan Group of all amounts described in subclauses
(a) through (d) of clause (i) of the definition of "Non-PO Formula Principal
Amount" for such Distribution Date, (ii) with respect to each Mortgage Loan
that became a Liquidated Mortgage Loan during the calendar month preceding the
month of such Distribution Date, the applicable Non-PO Percentage of the
amount of the Liquidation Proceeds allocated to principal received with
respect thereto remaining after application thereof pursuant to clause (ii) of
the definition of Senior Principal Distribution Amount, up to the Subordinated
Percentage for such Loan Group of the applicable Non-PO Percentage of the
Stated Principal Balance of such Mortgage Loan, (iii) the Subordinated
Prepayment Percentage of the applicable Non-PO Percentage of all amounts
described in subclause (f) of clause (i) of the definition of "Non-PO Formula
Principal Amount" for such Loan Group and Distribution Date, and (iv) the
related Subordinated Prepayment Percentage of any Subsequent Recoveries
described in clause (ii) of the definition of "Non-PO Formula Principal
Amount" for such Distribution Date, over (B) the amount of any payments in
respect of Class PO Deferred Amounts for the related Class PO Component on the
related Distribution Date, provided, however, that on any Distribution Date
after a Senior Termination Date, the Subordinated Principal Distribution
Amount will not be calculated by Loan Group but will equal the amount
calculated pursuant to the formula set forth above based on the applicable
Subordinated Percentage or Subordinated Prepayment Percentage, as applicable,
for the Subordinated Certificates for such Distribution Date with respect to
all of the Mortgage Loans as opposed to the Mortgage Loans in the related Loan
Group.

            Subordinate Pass-Through Rate: For the Interest Accrual Period
related to each Distribution Date, a per annum rate equal to (1) the sum of
the following for each Loan Group: the product of (x) the Required Coupon of
the Loan Group and (y) the related Subordinated Portion immediately prior to
that Distribution Date, divided by (2) the aggregate Class Certificate Balance
of the Subordinated Certificates immediately prior to that Distribution Date.

            Subsequent Recoveries: As to any Distribution Date, with respect
to a Liquidated Mortgage Loan that resulted in a Realized Loss in a prior
calendar month, unexpected amounts received by the Master Servicer (net of any
related expenses permitted to be reimbursed pursuant to Section 3.08)
specifically related to such Liquidated Mortgage Loan.

            Subservicer: Any person to whom the Master Servicer has contracted
for the servicing of all or a portion of the Mortgage Loans pursuant to
Section 3.02 hereof.

            Substitute Mortgage Loan: A Mortgage Loan substituted by a Seller
for a Deleted Mortgage Loan which must, on the date of such substitution, as
confirmed in a Request for Release, substantially in the form of Exhibit M,
(i) have a Stated Principal Balance, after deduction of the principal portion
of the Scheduled Payment due in the month of substitution, not in excess of,
and not more than


                                      I-30
<PAGE>


10% less than the Stated Principal Balance of the Deleted Mortgage Loan; (ii)
be accruing interest at a rate no lower than and not more than 1% per annum
higher than, that of the Deleted Mortgage Loan; (iii) have a Loan-to-Value
Ratio no higher than that of the Deleted Mortgage Loan; (iv) have a remaining
term to maturity no greater than (and not more than one year less than that
of) the Deleted Mortgage Loan; (v) not be a Cooperative Loan unless the
Deleted Mortgage Loan was a Cooperative Loan and (vi) comply with each
representation and warranty set forth in Section 2.03 hereof.

            Substitution Adjustment Amount: The meaning ascribed to such term
pursuant to Section 2.03.

            Supplemental Interest Trust: The separate trust created under this
Agreement pursuant to Section 3.05(g).

            Supplemental Interest Trustee: The Bank of New York, a New York
banking corporation, not in its individual capacity, but solely in its
capacity as trustee of the Supplemental Interest Trust for the benefit of the
Holders of the Covered Certificates under this Agreement, and any successor
thereto, and any corporation or national banking association resulting from or
surviving any consolidation or merger to which it or its successors may be a
party and any successor trustee as may from time to time be serving as
successor trustee hereunder.

            Targeted Balance: With respect to any group of Targeted Principal
Classes or Components in the aggregate and any Distribution Date appearing in
Schedule V hereto, the Aggregate Targeted Balance for such group and
Distribution Date. With respect to any other Targeted Principal Class or
Component and any Distribution Date appearing in Schedule V hereto, the
applicable amount appearing opposite such Distribution Date for such Class or
Component.

            Targeted Principal Classes:   As specified in the Preliminary
Statement.

            Tax Matters Person:   The person designated as "tax matters
person" in the manner provided under Treasury regulation ss. 1.860F-4(d) and
Treasury regulation ss. 301.6231(a)(7)-1.   Initially, the Tax Matters Person
shall be the Trustee.

            Tax Matters Person Certificate:   The Class A-R Certificate with a
Denomination of $0.01.

            Transaction Documents: This Agreement, the Derivative Contracts
and any other document or agreement entered into in connection with the Trust
Fund, the Certificates or the Mortgage Loans.

            Transfer:   Any direct or indirect transfer or sale of any
Ownership Interest in a Residual Certificate.

            Trust Fund: The corpus of the trust created hereunder consisting
of (i) the Mortgage Loans and all interest and principal received on or with
respect thereto after the Cut-off Date to the extent not applied in computing
the Cut-off Date Principal Balance thereof; (ii) the Certificate Account, the
Distribution Account, the Exchangeable Certificates Distribution Account and
all amounts deposited therein pursuant to the applicable provisions of this
Agreement; (iii) property that secured a Mortgage Loan and has been acquired
by foreclosure, deed-in-lieu of foreclosure or otherwise; and (iv) all
proceeds of the conversion, voluntary or involuntary, of any of the foregoing.
For the avoidance of doubt, the ES Trust, the Master REMIC and the Lower Tier
REMIC and the assets held or deemed thereby shall constitute a part of the
Trust Fund.


                                     I-31
<PAGE>


            Trustee: The Bank of New York and its successors and, if a
successor trustee is appointed hereunder, such successor.

            Trustee Advance Rate: With respect to any Advance made by the
Trustee pursuant to Section 4.01(b), a per annum rate of interest determined
as of the date of such Advance equal to the Prime Rate in effect on such date
plus 5.00%.

            Trustee Fee: As to any Distribution Date, an amount equal to
one-twelfth of the Trustee Fee Rate multiplied by the Pool Stated Principal
Balance with respect to such Distribution Date.

            Trustee Fee Rate:   With respect to each Mortgage Loan, 0.009% per
annum.

            Undercollateralized Group:   As defined in Section 4.05.

            Underwriter's Exemption:   Prohibited Transaction Exemption
2002-41, 67 Fed. Reg. 54487 (2002), as amended (or any successor thereto), or
any substantially similar administrative exemption granted by the U.S.
Department of Labor.

            Underwriter:   As specified in the Preliminary Statement.

            Unscheduled Principal Distribution Amount: With respect to any
Distribution Date, an amount equal to the sum of (i) with respect to each
Mortgage Loan that became a Liquidated Mortgage Loan during the calendar month
preceding the month of such Distribution Date, the applicable Non-PO
Percentage of the Liquidation Proceeds allocable to principal received with
respect to such Mortgage Loan and (ii) the applicable Non-PO Percentage of the
amount described in subclause (f) of clause (i) of the definition of Non-PO
Formula Principal Amount for such Distribution Date and (iii) any Subsequent
Recoveries described in clause (ii) of the definition of Non-PO Formula
Principal Amount for such Distribution Date.

            Voting Rights: The portion of the voting rights of all of the
Certificates which is allocated to any Certificate. As of any date of
determination, (a) 1% of all Voting Rights shall be allocated to each Class of
Notional Amount Certificates, if any (such Voting Rights to be allocated among
the holders of Certificates of each such Class in accordance with their
respective Percentage Interests), and (b) the remaining Voting Rights (or 100%
of the Voting Rights if there is no Class of Notional Amount Certificates)
shall be allocated among Holders of the remaining Classes of Certificates in
proportion to the Certificate Balances of their respective Certificates on
such date. Each Class of Exchangeable Certificates will be allocated a
proportionate share of the Voting Rights allocated to the related Classes of
Depositable Certificates that have been surrendered.

            Yield Supplement Amount: For any Distribution Date and the Class
1-A-2 Certificates on or prior to the Corridor Contract Scheduled Termination
Date, interest accrued for the related Interest Accrual Period on the Class
Certificate Balance of the Class 1-A-2 Certificates immediately prior to such
Distribution Date at a rate equal to the excess, if any, of (i) the lesser of
LIBOR and the applicable Ceiling Rate over (ii) the Strike Rate. For any
Distribution Date and the Class 1-A-3 and Class 1-A-4 Certificates, on or
prior to the Cap Contract Scheduled Termination Date, the interest accrued for
the related Interest Accrual Period on the Class Certificate Balance of the
related Class of Certificates immediately prior to such Distribution Date at a
rate equal to the excess, if any, of (i) LIBOR over (ii) 5.25%.


                                     I-32
<PAGE>


            SECTION 1.02. Certain Interpretive Provisions.

            All terms defined in this Agreement shall have the defined
meanings when used in any certificate, agreement or other document delivered
pursuant hereto unless otherwise defined therein. For purposes of this
Agreement and all such certificates and other documents, unless the context
otherwise requires: (a) accounting terms not otherwise defined in this
Agreement, and accounting terms partly defined in this Agreement to the extent
not defined, shall have the respective meanings given to them under generally
accepted accounting principles; (b) the words "hereof," "herein" and
"hereunder" and words of similar import refer to this Agreement (or the
certificate, agreement or other document in which they are used) as a whole
and not to any particular provision of this Agreement (or such certificate,
agreement or document); (c) references to any Section, Schedule or Exhibit are
references to Sections, Schedules and Exhibits in or to this Agreement, and
references to any paragraph, subsection, clause or other subdivision within
any Section or definition refer to such paragraph, subsection, clause or other
subdivision of such Section or definition; (d) the term "including" means
"including without limitation"; (e) references to any law or regulation refer
to that law or regulation as amended from time to time and include any
successor law or regulation; (f) references to any agreement refer to that
agreement as amended from time to time; (g) references to any Person include
that Person's permitted successors and assigns; and (h) a Mortgage Loan is "30
days delinquent" if any Scheduled Payment has not been received by the close
of business on the day immediately preceding the Due Date on which the next
Scheduled Payment is due. Similarly for "60 days delinquent," "90 days
delinquent" and so on


                                      I-33
<PAGE>


                                  ARTICLE II

                         CONVEYANCE OF MORTGAGE LOANS;
                        REPRESENTATIONS AND WARRANTIES

            SECTION 2.01. Conveyance of Mortgage Loans.

            (a) Each Seller, concurrently with the execution and delivery
hereof, hereby sells, transfers, assigns, sets over and otherwise conveys to
the Depositor, without recourse, all its respective right, title and interest
in and to the related Mortgage Loans, including all interest and principal
received or receivable by such Seller, on or with respect to the Mortgage
Loans after the Cut-off Date and all interest and principal payments on the
related Mortgage Loans received prior to the Cut-off Date in respect of
installments of interest and principal due thereafter, but not including
payments of principal and interest due and payable on such Mortgage Loans, on
or before the Cut-off Date. On or prior to the Closing Date, Countrywide shall
deliver to the Depositor or, at the Depositor's direction, to the Trustee or
other designee of the Depositor, the Mortgage File for each Mortgage Loan
listed in the Mortgage Loan Schedule (except that, in the case of the Delay
Delivery Mortgage Loans (which may include Countrywide Mortgage Loans, Park
Granada Mortgage Loans, Park Monaco Mortgage Loans and Park Sienna Mortgage
Loans), such delivery may take place within thirty (30) days following the
Closing Date). Such delivery of the Mortgage Files shall be made against
payment by the Depositor of the purchase price, previously agreed to by the
Sellers and Depositor, for the Mortgage Loans. With respect to any Mortgage
Loan that does not have a first payment date on or before the Due Date in the
month of the first Distribution Date, Countrywide shall deposit into the
Distribution Account on or before the Distribution Account Deposit Date
relating to the first Distribution Date, an amount equal to one month's
interest at the related Adjusted Mortgage Rate on the Cut-off Date Principal
Balance of such Mortgage Loan.

            (b) Immediately upon the conveyance of the Mortgage Loans referred
to in clause (a), the Depositor sells, transfers, assigns, sets over and
otherwise conveys to the Trustee for the benefit of the Certificateholders,
without recourse, all the right, title and interest of the Depositor in and to
the Trust Fund together with the Depositor's right to require each Seller to
cure any breach of a representation or warranty made herein by such Seller, or
to repurchase or substitute for any affected Mortgage Loan in accordance
herewith.

            (c) In connection with the transfer and assignment set forth in
clause (b) above, the Depositor has delivered or caused to be delivered to the
Trustee (or, in the case of the Delay Delivery Mortgage Loans, will deliver or
cause to be delivered to the Trustee within thirty (30) days following the
Closing Date) for the benefit of the Certificateholders the following
documents or instruments with respect to each Mortgage Loan so assigned:

            (i) (A) the original Mortgage Note endorsed by manual or facsimile
      signature in blank in the following form: "Pay to the order of
      ____________ without recourse," with all intervening endorsements
      showing a complete chain of endorsement from the originator to the
      Person endorsing the Mortgage Note (each such endorsement being
      sufficient to transfer all right, title and interest of the party so
      endorsing, as noteholder or assignee thereof, in and to that Mortgage
      Note); or


                                     II-1
<PAGE>


                  (B) with respect to any Lost Mortgage Note, a lost note
            affidavit from Countrywide stating that the original Mortgage Note
             was lost or destroyed, together with a copy of such Mortgage Note;

            (ii) except as provided below and for each Mortgage Loan that is
      not a MERS Mortgage Loan, the original recorded Mortgage or a copy of
      such Mortgage, with recording information, certified by Countrywide as
      being a true and complete copy of the Mortgage (or, in the case of a
      Mortgage for which the related Mortgaged Property is located in the
      Commonwealth of Puerto Rico, a true copy of the Mortgage certified as
      such by the applicable notary) and in the case of each MERS Mortgage
      Loan, the original Mortgage, or a copy of such mortgage, with recording
      information, noting the presence of the MIN of the Mortgage Loans and
      either language indicating that the Mortgage Loan is a MOM Loan if the
      Mortgage Loan is a MOM Loan or if the Mortgage Loan was not a MOM Loan
      at origination, the original Mortgage and the assignment thereof to
      MERS, with evidence of recording indicated thereon, or a copy of the
      Mortgage certified by the public recording office in which such Mortgage
      has been recorded;

            (iii) in the case of each Mortgage Loan that is not a MERS
      Mortgage Loan, a duly executed assignment of the Mortgage, or a copy of
      such assignment, with recording information, (which may be included in a
      blanket assignment or assignments), together with, except as provided
      below, all interim recorded assignments of such mortgage or a copy of
      such assignment, with recording information, (each such assignment, when
      duly and validly completed, to be in recordable form and sufficient to
      effect the assignment of and transfer to the assignee thereof, under the
      Mortgage to which the assignment relates); provided that, if the related
      Mortgage has not been returned from the applicable public recording
      office, such assignment of the Mortgage may exclude the information to
      be provided by the recording office; provided, further, that such
      assignment of Mortgage need not be delivered in the case of a Mortgage
      for which the related Mortgaged Property is located in the Commonwealth
      of Puerto Rico;

            (iv) the original or copies of each assumption, modification,
      written assurance or substitution agreement, if any;

            (v) except as provided below, the original or duplicate original
      lender's title policy or a printout of the electronic equivalent and all
      riders thereto; and

            (vi) in the case of a Cooperative Loan, the originals of the
      following documents or instruments:

                  (A) The Coop Shares, together with a stock power in blank;

                  (B) The executed Security Agreement;

                  (C) The executed Proprietary Lease;

                  (D) The executed Recognition Agreement;

                  (E) The executed UCC-1 financing statement with evidence of
            recording thereon which have been filed in all places required to
            perfect the Seller's interest in the Coop Shares and the
            Proprietary Lease; and

                  (F) The executed UCC-3 financing statements or other
            appropriate UCC financing statements required by state law,
            evidencing a complete and unbroken line


                                     II-2
<PAGE>


            from the mortgagee to the Trustee with evidence of recording
            thereon (or in a form suitable for recordation).

            In addition, in connection with the assignment of any MERS
Mortgage Loan, each Seller agrees that it will cause, at the Trustee's
expense, the MERS(R) System to indicate that the Mortgage Loans sold by such
Seller to the Depositor have been assigned by that Seller to the Trustee in
accordance with this Agreement for the benefit of the Certificateholders by
including (or deleting, in the case of Mortgage Loans which are repurchased in
accordance with this Agreement) in such computer files the information
required by the MERS(R) System to identify the series of the Certificates
issued in connection with such Mortgage Loans. Each Seller further agrees that
it will not, and will not permit the Master Servicer to, and the Master
Servicer agrees that it will not, alter the information referenced in this
paragraph with respect to any Mortgage Loan sold by such Seller to the
Depositor during the term of this Agreement unless and until such Mortgage
Loan is repurchased in accordance with the terms of this Agreement.

            In the event that in connection with any Mortgage Loan that is not
a MERS Mortgage Loan the Depositor cannot deliver (a) the original recorded
Mortgage, or a copy of such Mortgage, with recording information, (b) all
interim recorded assignments, or a copy of such assignments, with recording
information or (c) the lender's title policy or a copy of the lender's title
policy (together with all riders thereto) satisfying the requirements of
clause (ii), (iii) or (v) above, respectively, concurrently with the execution
and delivery of this Agreement because such document or documents have not
been returned from the applicable public recording office in the case of
clause (ii) or (iii) above, or because the title policy has not been delivered
to either the Master Servicer or the Depositor by the applicable title insurer
in the case of clause (v) above, the Depositor shall promptly deliver to the
Trustee, in the case of clause (ii) or (iii) above, such original Mortgage or
a copy of such Mortgage, with recording information, or such interim
assignment or a copy of such assignment, with recording information, as the
case may be, with evidence of recording indicated thereon upon receipt thereof
from the public recording office, or a copy thereof, certified, if
appropriate, by the relevant recording office, but in no event shall any such
delivery of the original Mortgage and each such interim assignment or a copy
thereof, certified, if appropriate, by the relevant recording office, be made
later than one year following the Closing Date, or, in the case of clause (v)
above, no later than 120 days following the Closing Date; provided, however,
in the event the Depositor is unable to deliver by such date each Mortgage and
each such interim assignment by reason of the fact that any such documents
have not been returned by the appropriate recording office, or, in the case of
each such interim assignment, because the related Mortgage has not been
returned by the appropriate recording office, the Depositor shall deliver such
documents to the Trustee as promptly as possible upon receipt thereof and, in
any event, within 720 days following the Closing Date. The Depositor shall
forward or cause to be forwarded to the Trustee (a) from time to time
additional original documents evidencing an assumption or modification of a
Mortgage Loan and (b) any other documents required to be delivered by the
Depositor or the Master Servicer to the Trustee. In the event that the
original Mortgage is not delivered and in connection with the payment in full
of the related Mortgage Loan and the public recording office requires the
presentation of a "lost instruments affidavit and indemnity" or any equivalent
document, because only a copy of the Mortgage can be delivered with the
instrument of satisfaction or reconveyance, the Master Servicer shall execute
and deliver or cause to be executed and delivered such a document to the
public recording office. In the case where a public recording office retains
the original recorded Mortgage or in the case where a Mortgage is lost after
recordation in a public recording office, Countrywide shall deliver to the
Trustee a copy of such Mortgage certified by such public recording office to
be a true and complete copy of the original recorded Mortgage.

            As promptly as practicable subsequent to such transfer and
assignment, and in any event, within one-hundred and twenty (120) days after
such transfer and assignment, the Trustee shall (A) as the


                                      II-3
<PAGE>


assignee thereof, affix the following language to each assignment of Mortgage:
"CWALT Series 2007-3T1, The Bank of New York, as trustee", (B) cause such
assignment to be in proper form for recording in the appropriate public office
for real property records and (C) cause to be delivered for recording in the
appropriate public office for real property records the assignments of the
Mortgages to the Trustee, except that, (i) with respect to any assignments of
Mortgage as to which the Trustee has not received the information required to
prepare such assignment in recordable form, the Trustee's obligation to do so
and to deliver the same for such recording shall be as soon as practicable
after receipt of such information and in any event within thirty (30) days
after receipt thereof and (ii) the Trustee need not cause to be recorded any
assignment which relates to a Mortgage Loan, the Mortgaged Property and
Mortgage File relating to which are located in any jurisdiction (including
Puerto Rico) under the laws of which the recordation of such assignment is not
necessary to protect the Trustee's and the Certificateholders' interest in the
related Mortgage Loan as evidenced by an opinion of counsel delivered by
Countrywide to the Trustee within 90 days of the Closing Date (which opinion
may be in the form of a "survey" opinion and is not required to be delivered
by counsel admitted to practice law in the jurisdiction as to which such legal
opinion applies).

            In the case of Mortgage Loans that have been prepaid in full as of
the Closing Date, the Depositor, in lieu of delivering the above documents to
the Trustee, will deposit in the Certificate Account the portion of such
payment that is required to be deposited in the Certificate Account pursuant
to Section 3.05 hereof.

            Notwithstanding anything to the contrary in this Agreement, within
thirty (30) days after the Closing Date, Countrywide (on its own behalf and on
behalf of Park Granada, Park Monaco and Park Sienna) shall either (i) deliver
to the Depositor, or at the Depositor's direction, to the Trustee or other
designee of the Depositor the Mortgage File as required pursuant to this
Section 2.01 for each Delay Delivery Mortgage Loan or (ii) either (A)
substitute a Substitute Mortgage Loan for the Delay Delivery Mortgage Loan or
(B) repurchase the Delay Delivery Mortgage Loan, which substitution or
repurchase shall be accomplished in the manner and subject to the conditions
set forth in Section 2.03 (treating each Delay Delivery Mortgage Loan as a
Deleted Mortgage Loan for purposes of such Section 2.03); provided, however,
that if Countrywide fails to deliver a Mortgage File for any Delay Delivery
Mortgage Loan within the thirty (30) day period provided in the prior
sentence, Countrywide (on its own behalf and on behalf of Park Granada, Park
Monaco and Park Sienna) shall use its best reasonable efforts to effect a
substitution, rather than a repurchase of, such Deleted Mortgage Loan and
provided further that the cure period provided for in Section 2.02 or in
Section 2.03 shall not apply to the initial delivery of the Mortgage File for
such Delay Delivery Mortgage Loan, but rather Countrywide (on its own behalf
and on behalf of Park Granada, Park Monaco and Park Sienna) shall have five
(5) Business Days to cure such failure to deliver. At the end of such thirty
(30) day period the Trustee shall send a Delay Delivery Certification for the
Delay Delivery Mortgage Loans delivered during such thirty (30) day period in
accordance with the provisions of Section 2.02.

            (d) Neither the Depositor nor the Trust will acquire or hold any
Mortgage Loan that would violate the representations made by Countrywide set
forth in clause (46) of Schedule III-A hereto.

            SECTION 2.02. Acceptance by Trustee of the Mortgage Loans.

            (a) The Trustee acknowledges receipt of the documents identified
in the Initial Certification in the form annexed hereto as Exhibit F-1 and
declares that it holds and will hold such documents and the other documents
delivered to it constituting the Mortgage Files, and that it holds or will
hold such other assets as are included in the Trust Fund, in trust for the
exclusive use and benefit of all present and future Certificateholders. The
Trustee acknowledges that it will maintain possession of the Mortgage Notes in
the State of California, unless otherwise permitted by the Rating Agencies.


                                     II-4
<PAGE>


            The Trustee agrees to execute and deliver on the Closing Date to
the Depositor, the Master Servicer and Countrywide (on its own behalf and on
behalf of Park Granada, Park Monaco and Park Sienna) an Initial Certification
in the form annexed hereto as Exhibit F-1. Based on its review and
examination, and only as to the documents identified in such Initial
Certification, the Trustee acknowledges that such documents appear regular on
their face and relate to such Mortgage Loan. The Trustee shall be under no
duty or obligation to inspect, review or examine said documents, instruments,
certificates or other papers to determine that the same are genuine,
enforceable or appropriate for the represented purpose or that they have
actually been recorded in the real estate records or that they are other than
what they purport to be on their face.

            On or about the thirtieth (30th) day after the Closing Date, the
Trustee shall deliver to the Depositor, the Master Servicer and Countrywide
(on its own behalf and on behalf of Park Granada, Park Monaco and Park Sienna)
a Delay Delivery Certification with respect to the Mortgage Loans in the form
annexed hereto as Exhibit G-1, with any applicable exceptions noted thereon.

            Not later than 90 days after the Closing Date, the Trustee shall
deliver to the Depositor, the Master Servicer and Countrywide (on its own
behalf and on behalf of Park Granada, Park Monaco and Park Sienna) a Final
Certification with respect to the Mortgage Loans in the form annexed hereto as
Exhibit H-1, with any applicable exceptions noted thereon. If, in the course
of such review, the Trustee finds any document constituting a part of a
Mortgage File which does not meet the requirements of Section 2.01, the
Trustee shall list such as an exception in the Final Certification; provided,
however that the Trustee shall not make any determination as to whether (i)
any endorsement is sufficient to transfer all right, title and interest of the
party so endorsing, as noteholder or assignee thereof, in and to that Mortgage
Note or (ii) any assignment is in recordable form or is sufficient to effect
the assignment of and transfer to the assignee thereof under the mortgage to
which the assignment relates. Countrywide (on its own behalf and on behalf of
Park Granada, Park Monaco and Park Sienna) shall promptly correct or cure such
defect within 90 days from the date it was so notified of such defect and, if
Countrywide does not correct or cure such defect within such period,
Countrywide (on its own behalf and on behalf of Park Granada, Park Monaco and
Park Sienna) shall either (a) substitute for the related Mortgage Loan a
Substitute Mortgage Loan, which substitution shall be accomplished in the
manner and subject to the conditions set forth in Section 2.03, or (b)
purchase such Mortgage Loan from the Trustee within 90 days from the date
Countrywide (on its own behalf and on behalf of Park Granada, Park Monaco and
Park Sienna) was notified of such defect in writing at the Purchase Price of
such Mortgage Loan; provided, however, that in no event shall such
substitution or purchase occur more than 540 days from the Closing Date,
except that if the substitution or purchase of a Mortgage Loan pursuant to
this provision is required by reason of a delay in delivery of any documents
by the appropriate recording office, and there is a dispute between either the
Master Servicer or Countrywide (on its own behalf and on behalf of Park
Granada, Park Monaco and Park Sienna) and the Trustee over the location or
status of the recorded document, then such substitution or purchase shall
occur within 720 days from the Closing Date. The Trustee shall deliver written
notice to each Rating Agency within 270 days from the Closing Date indicating
each Mortgage Loan (a) which has not been returned by the appropriate
recording office or (b) as to which there is a dispute as to location or
status of such Mortgage Loan. Such notice shall be delivered every 90 days
thereafter until the related Mortgage Loan is returned to the Trustee. Any
such substitution pursuant to (a) above or purchase pursuant to (b) above
shall not be effected prior to the delivery to the Trustee of the Opinion of
Counsel required by Section 2.05 hereof, if any, and any substitution pursuant
to (a) above shall not be effected prior to the additional delivery to the
Trustee of a Request for Release substantially in the form of Exhibit N. No
substitution is permitted to be made in any calendar month after the
Determination Date for such month. The Purchase Price for any such Mortgage
Loan shall be deposited by Countrywide (on its own behalf and on behalf of
Park Granada, Park Monaco and Park Sienna) in the Certificate Account on or
prior to the Distribution Account Deposit Date for the Distribution Date in
the month following the month of repurchase and, upon receipt of such deposit
and


                                     II-5
<PAGE>


certification with respect thereto in the form of Exhibit N hereto, the
Trustee shall release the related Mortgage File to Countrywide (on its own
behalf and on behalf of Park Granada, Park Monaco and Park Sienna) and shall
execute and deliver at Countrywide's (on its own behalf and on behalf of Park
Granada, Park Monaco and Park Sienna) request such instruments of transfer or
assignment prepared by Countrywide, in each case without recourse, as shall be
necessary to vest in Countrywide (on its own behalf and on behalf of Park
Granada, Park Monaco and Park Sienna), or its designee, the Trustee's interest
in any Mortgage Loan released pursuant hereto. If pursuant to the foregoing
provisions Countrywide (on its own behalf and on behalf of Park Granada, Park
Monaco and Park Sienna) repurchases an Mortgage Loan that is a MERS Mortgage
Loan, the Master Servicer shall either (i) cause MERS to execute and deliver
an assignment of the Mortgage in recordable form to transfer the Mortgage from
MERS to Countrywide (on its own behalf and on behalf of Park Granada, Park
Monaco and Park Sienna) or its designee and shall cause such Mortgage to be
removed from registration on the MERS(R) System in accordance with MERS' rules
and regulations or (ii) cause MERS to designate on the MERS(R) System
Countrywide (on its own behalf and on behalf of Park Granada, Park Monaco and
Park Sienna) or its designee as the beneficial holder of such Mortgage Loan.

             (b) [Reserved].

            (c) The Trustee shall retain possession and custody of each
Mortgage File in accordance with and subject to the terms and conditions set
forth herein. The Master Servicer shall promptly deliver to the Trustee, upon
the execution or receipt thereof, the originals of such other documents or
instruments constituting the Mortgage File as come into the possession of the
Master Servicer from time to time.

            (d) It is understood and agreed that the respective obligations of
each Seller to substitute for or to purchase any Mortgage Loan sold to the
Depositor by it which does not meet the requirements of Section 2.01 above
shall constitute the sole remedy respecting such defect available to the
Trustee, the Depositor and any Certificateholder against that Seller.

            (e) [Reserved].

            (f) [Reserved].

            SECTION 2.03. Representations, Warranties and Covenants of the
                          Sellers and Master Servicer.

            (a) Countrywide hereby makes the representations and warranties
set forth in (i) Schedule II-A, Schedule II-B, Schedule II-C and Schedule II-D
hereto, and by this reference incorporated herein, to the Depositor, the
Master Servicer and the Trustee, as of the Closing Date, (ii) Schedule III-A
hereto, and by this reference incorporated herein, to the Depositor, the
Master Servicer and the Trustee, as of the Closing Date, or if so specified
therein, as of the Cut-off Date with respect to all of the Mortgage Loans, and
(iii) Schedule III-B hereto, and by this reference incorporated herein, to the
Depositor, the Master Servicer and the Trustee, as of the Closing Date, or if
so specified therein, as of the Cut-off Date with respect to the Mortgage
Loans that are Countrywide Mortgage Loans. Park Granada hereby makes the
representations and warranties set forth in (i) Schedule II-B hereto, and by
this reference incorporated herein, to the Depositor, the Master Servicer and
the Trustee, as of the Closing Date and (ii) Schedule III-C hereto, and by
this reference incorporated herein, to the Depositor, the Master Servicer and
the Trustee, as of the Closing Date, or if so specified therein, as of the
Cut-off Date with respect to the Mortgage Loans that are Park Granada Mortgage
Loans. Park Monaco hereby makes the representations and warranties set forth
in (i) Schedule II-C hereto, and by this reference incorporated herein, to the
Depositor, the Master Servicer and the Trustee, as of the Closing Date and
(ii) Schedule III-


                                      II-6
<PAGE>


D hereto, and by this reference incorporated herein, to the Depositor, the
Master Servicer and the Trustee, as of the Closing Date, or if so specified
therein, as of the Cut-off Date with respect to the Mortgage Loans that are
Park Monaco Mortgage Loans. Park Sienna hereby makes the representations and
warranties set forth in (i) Schedule II-D hereto, and by this reference
incorporated herein, to the Depositor, the Master Servicer and the Trustee, as
of the Closing Date and (ii) Schedule III-E hereto, and by this reference
incorporated herein, to the Depositor, the Master Servicer and the Trustee, as
of the Closing Date, or if so specified therein, as of the Cut-off Date with
respect to the Mortgage Loans that are Park Sienna Mortgage Loans.

            (b) The Master Servicer hereby makes the representations and
warranties set forth in Schedule IV hereto, and by this reference incorporated
herein, to the Depositor and the Trustee, as of the Closing Date.

             (c) Upon discovery by any of the parties hereto of a breach of a
representation or warranty with respect to a Mortgage Loan made pursuant to
Section 2.03(a) that materially and adversely affects the interests of the
Certificateholders in that Mortgage Loan, the party discovering such breach
shall give prompt notice thereof to the other parties. Each Seller hereby
covenants that within 90 days of the earlier of its discovery or its receipt
of written notice from any party of a breach of any representation or warranty
with respect to a Mortgage Loan sold by it pursuant to Section 2.03(a) which
materially and adversely affects the interests of the Certificateholders in
that Mortgage Loan, it shall cure such breach in all material respects, and if
such breach is not so cured, shall, (i) if such 90-day period expires prior to
the second anniversary of the Closing Date, remove such Mortgage Loan (a
"Deleted Mortgage Loan") from the Trust Fund and substitute in its place a
Substitute Mortgage Loan, in the manner and subject to the conditions set
forth in this Section; or (ii) repurchase the affected Mortgage Loan or
Mortgage Loans from the Trustee at the Purchase Price in the manner set forth
below; provided, however, that any such substitution pursuant to (i) above
shall not be effected prior to the delivery to the Trustee of the Opinion of
Counsel required by Section 2.05 hereof, if any, and any such substitution
pursuant to (i) above shall not be effected prior to the additional delivery
to the Trustee of a Request for Release substantially in the form of Exhibit N
and the Mortgage File for any such Substitute Mortgage Loan. The Seller
repurchasing a Mortgage Loan pursuant to this Section 2.03(c) shall promptly
reimburse the Master Servicer and the Trustee for any expenses reasonably
incurred by the Master Servicer or the Trustee in respect of enforcing the
remedies for such breach. With respect to the representations and warranties
described in this Section which are made to the best of a Seller's knowledge,
if it is discovered by either the Depositor, a Seller or the Trustee that the
substance of such representation and warranty is inaccurate and such
inaccuracy materially and adversely affects the value of the related Mortgage
Loan or the interests of the Certificateholders therein, notwithstanding that
Seller's lack of knowledge with respect to the substance of such
representation or warranty, such inaccuracy shall be deemed a breach of the
applicable representation or warranty.

            With respect to any Substitute Mortgage Loan or Loans, sold to the
Depositor by a Seller, Countrywide (on its own behalf and on behalf of Park
Granada, Park Monaco and Park Sienna) shall deliver to the Trustee for the
benefit of the Certificateholders the Mortgage Note, the Mortgage, the related
assignment of the Mortgage, and such other documents and agreements as are
required by Section 2.01, with the Mortgage Note endorsed and the Mortgage
assigned as required by Section 2.01. No substitution is permitted to be made
in any calendar month after the Determination Date for such month. Scheduled
Payments due with respect to Substitute Mortgage Loans in the month of
substitution shall not be part of the Trust Fund and will be retained by the
related Seller on the next succeeding Distribution Date. For the month of
substitution, distributions to Certificateholders will include the monthly
payment due on any Deleted Mortgage Loan for such month and thereafter that
Seller shall be entitled to retain all amounts received in respect of such
Deleted Mortgage Loan. The Master Servicer shall amend the Mortgage Loan
Schedule for the benefit of the Certificateholders to reflect the removal of
such Deleted


                                     II-7
<PAGE>


Mortgage Loan and the substitution of the Substitute Mortgage Loan or Loans
and the Master Servicer shall deliver the amended Mortgage Loan Schedule to
the Trustee. Upon such substitution, the Substitute Mortgage Loan or Loans
shall be subject to the terms of this Agreement in all respects, and the
related Seller shall be deemed to have made with respect to such Substitute
Mortgage Loan or Loans, as of the date of substitution, the representations
and warranties made pursuant to Section 2.03(a) with respect to such Mortgage
Loan. Upon any such substitution and the deposit to the Certificate Account of
the amount required to be deposited therein in connection with such
substitution as described in the following paragraph, the Trustee shall
release the Mortgage File held for the benefit of the Certificateholders
relating to such Deleted Mortgage Loan to the related Seller and shall execute
and deliver at such Seller's direction such instruments of transfer or
assignment prepared by Countrywide (on its own behalf and on behalf of Park
Granada, Park Monaco and Park Sienna), in each case without recourse, as shall
be necessary to vest title in that Seller, or its designee, the Trustee's
interest in any Deleted Mortgage Loan substituted for pursuant to this Section
2.03.

            For any month in which a Seller substitutes one or more Substitute
Mortgage Loans for one or more Deleted Mortgage Loans, the Master Servicer
will determine the amount (if any) by which the aggregate principal balance of
all Substitute Mortgage Loans sold to the Depositor by that Seller as of the
date of substitution is less than the aggregate Stated Principal Balance of
all Deleted Mortgage Loans repurchased by that Seller (after application of
the scheduled principal portion of the monthly payments due in the month of
substitution). The amount of such shortage (the "Substitution Adjustment
Amount") plus an amount equal to the aggregate of any unreimbursed Advances
with respect to such Deleted Mortgage Loans shall be deposited in the
Certificate Account by Countrywide (on its own behalf and on behalf of Park
Granada, Park Monaco and Park Sienna) on or before the Distribution Account
Deposit Date for the Distribution Date in the month succeeding the calendar
month during which the related Mortgage Loan became required to be purchased
or replaced hereunder.

            In the event that a Seller shall have repurchased a Mortgage Loan,
the Purchase Price therefor shall be deposited in the Certificate Account
pursuant to Section 3.05 on or before the Distribution Account Deposit Date
for the Distribution Date in the month following the month during which that
Seller became obligated hereunder to repurchase or replace such Mortgage Loan
and upon such deposit of the Purchase Price, the delivery of the Opinion of
Counsel required by Section 2.05 and receipt of a Request for Release in the
form of Exhibit N hereto, the Trustee shall release the related Mortgage File
held for the benefit of the Certificateholders to such Person, and the Trustee
shall execute and deliver at such Person's direction such instruments of
transfer or assignment prepared by such Person, in each case without recourse,
as shall be necessary to transfer title from the Trustee. It is understood and
agreed that the obligation under this Agreement of any Person to cure,
repurchase or replace any Mortgage Loan as to which a breach has occurred and
is continuing shall constitute the sole remedy against such Persons respecting
such breach available to Certificateholders, the Depositor or the Trustee on
their behalf.

             The representations and warranties made pursuant to this Section
2.03 shall survive delivery of the respective Mortgage Files to the Trustee
for the benefit of the Certificateholders.

            SECTION 2.04. Representations and Warranties of the Depositor as
                          to the Mortgage Loans.

            The Depositor hereby represents and warrants to the Trustee with
respect to each Mortgage Loan as of the date hereof or such other date set
forth herein that as of the Closing Date, and following the transfer of the
Mortgage Loans to it by each Seller, the Depositor had good title to the
Mortgage Loans and the Mortgage Notes were subject to no offsets, defenses or
counterclaims.


                                     II-8
<PAGE>


            The Depositor hereby assigns, transfers and conveys to the Trustee
all of its rights with respect to the Mortgage Loans including, without
limitation, the representations and warranties of each Seller made pursuant to
Section 2.03(a)(ii) hereof, together with all rights of the Depositor to
require each Seller to cure any breach thereof or to repurchase or substitute
for any affected Mortgage Loan in accordance with this Agreement.

            It is understood and agreed that the representations and
warranties set forth in this Section 2.04 shall survive delivery of the
Mortgage Files to the Trustee. Upon discovery by the Depositor or the Trustee
of a breach of any of the foregoing representations and warranties set forth
in this Section 2.04 (referred to herein as a "breach"), which breach
materially and adversely affects the interest of the Certificateholders, the
party discovering such breach shall give prompt written notice to the others
and to each Rating Agency.

            SECTION 2.05. Delivery of Opinion of Counsel in Connection with
                          Substitutions.

            (a) Notwithstanding any contrary provision of this Agreement, no
substitution pursuant to Section 2.02 or Section 2.03 shall be made more than
90 days after the Closing Date unless Countrywide delivers to the Trustee an
Opinion of Counsel, which Opinion of Counsel shall not be at the expense of
either the Trustee or the Trust Fund, addressed to the Trustee, to the effect
that such substitution will not (i) result in the imposition of the tax on
"prohibited transactions" on the Trust Fund or contributions after the Startup
Date, as defined in Sections 860F(a)(2) and 860G(d) of the Code, respectively,
or (ii) cause any REMIC created hereunder to fail to qualify as a REMIC at any
time that any Certificates are outstanding.

            (b) Upon discovery by the Depositor, a Seller, the Master
Servicer, or the Trustee that any Mortgage Loan does not constitute a
"qualified mortgage" within the meaning of Section 860G(a)(3) of the Code, the
party discovering such fact shall promptly (and in any event within five (5)
Business Days of discovery) give written notice thereof to the other parties.
In connection therewith, the Trustee shall require Countrywide (on its own
behalf and on behalf of Park Granada, Park Monaco and Park Sienna), at its
option, to either (i) substitute, if the conditions in Section 2.03(c) with
respect to substitutions are satisfied, a Substitute Mortgage Loan for the
affected Mortgage Loan, or (ii) repurchase the affected Mortgage Loan within
90 days of such discovery in the same manner as it would a Mortgage Loan for a
breach of representation or warranty made pursuant to Section 2.03. The
Trustee shall reconvey to Countrywide the Mortgage Loan to be released
pursuant hereto in the same manner, and on the same terms and conditions, as
it would a Mortgage Loan repurchased for breach of a representation or
warranty contained in Section 2.03.

            SECTION 2.06. Execution and Delivery of Certificates.

            The Trustee acknowledges the transfer and assignment to it of the
Trust Fund and, concurrently with such transfer and assignment, has executed
and delivered to or upon the order of the Depositor, the Certificates in
authorized denominations evidencing directly or indirectly the entire
ownership of the Trust Fund. The Trustee agrees to hold the Trust Fund and
exercise the rights referred to above for the benefit of all present and
future Holders of the Certificates and to perform the duties set forth in this
Agreement, to the end that the interests of the Holders of the Certificates
may be adequately and effectively protected.

            SECTION 2.07. REMIC Matters.

            The Preliminary Statement sets forth the designations and "latest
possible maturity date" for federal income tax purposes of all interests
created hereby. The "Startup Day" for purposes of the


                                     II-9
<PAGE>


REMIC Provisions shall be the Closing Date. The "tax matters person" with
respect to each REMIC hereunder shall be the Trustee and the Trustee shall
hold the Tax Matters Person Certificate. Each REMIC's fiscal year shall be the
calendar year.

            SECTION 2.08. Covenants of the Master Servicer.

            The Master Servicer hereby covenants to the Depositor and the
Trustee as follows:

            (a) the Master Servicer shall comply in the performance of its
obligations under this Agreement with all reasonable rules and requirements of
the insurer under each Required Insurance Policy; and

            (b) no written information, certificate of an officer, statement
furnished in writing or written report delivered to the Depositor, any
affiliate of the Depositor or the Trustee and prepared by the Master Servicer
pursuant to this Agreement will contain any untrue statement of a material
fact or omit to state a material fact necessary to make such information,
certificate, statement or report not misleading.


                                    II-10
<PAGE>


                                  ARTICLE III

                         ADMINISTRATION AND SERVICING
                               OF MORTGAGE LOANS

            SECTION 3.01. Master Servicer to Service Mortgage Loans.

            For and on behalf of the Certificateholders, the Master Servicer
shall service and administer the Mortgage Loans in accordance with the terms
of this Agreement and customary and usual standards of practice of prudent
mortgage loan servicers. In connection with such servicing and administration,
the Master Servicer shall have full power and authority, acting alone and/or
through Subservicers as provided in Section 3.02 hereof, subject to the terms
hereof (i) to execute and deliver, on behalf of the Certificateholders and the
Trustee, customary consents or waivers and other instruments and documents,
(ii) to consent to transfers of any Mortgaged Property and assumptions of the
Mortgage Notes and related Mortgages (but only in the manner provided in this
Agreement), (iii) to collect any Insurance Proceeds and other Liquidation
Proceeds (which, for the purpose of this Section, includes any Subsequent
Recoveries), and (iv) to effectuate foreclosure or other conversion of the
ownership of the Mortgaged Property securing any Mortgage Loan; provided that
the Master Servicer shall not take any action that is inconsistent with or
prejudices the interests of the Trust Fund or the Certificateholders in any
Mortgage Loan or the rights and interests of the Depositor, the Trustee and
the Certificateholders under this Agreement. The Master Servicer shall
represent and protect the interests of the Trust Fund in the same manner as it
protects its own interests in mortgage loans in its own portfolio in any
claim, proceeding or litigation regarding a Mortgage Loan, and shall not make
or permit any modification, waiver or amendment of any Mortgage Loan which
would cause any REMIC created hereunder to fail to qualify as a REMIC or
result in the imposition of any tax under Section 860F(a) or Section 860G(d)
of the Code. Without limiting the generality of the foregoing, the Master
Servicer, in its own name or in the name of the Depositor and the Trustee, is
hereby authorized and empowered by the Depositor and the Trustee, when the
Master Servicer believes it appropriate in its reasonable judgment, to execute
and deliver, on behalf of the Trustee, the Depositor, the Certificateholders
or any of them, any and all instruments of satisfaction or cancellation, or of
partial or full release or discharge and all other comparable instruments,
with respect to the Mortgage Loans, and with respect to the Mortgaged
Properties held for the benefit of the Certificateholders. The Master Servicer
shall prepare and deliver to the Depositor and/or the Trustee such documents
requiring execution and delivery by either or both of them as are necessary or
appropriate to enable the Master Servicer to service and administer the
Mortgage Loans to the extent that the Master Servicer is not permitted to
execute and deliver such documents pursuant to the preceding sentence. Upon
receipt of such documents, the Depositor and/or the Trustee shall execute such
documents and deliver them to the Master Servicer. The Master Servicer further
is authorized and empowered by the Trustee, on behalf of the
Certificateholders and the Trustee, in its own name or in the name of the
Subservicer, when the Master Servicer or the Subservicer, as the case may be,
believes it appropriate in its best judgment to register any Mortgage Loan on
the MERS(R) System, or cause the removal from the registration of any Mortgage
Loan on the MERS(R) System, to execute and deliver, on behalf of the Trustee
and the Certificateholders or any of them, any and all instruments of
assignment and other comparable instruments with respect to such assignment or
re-recording of a Mortgage in the name of MERS, solely as nominee for the
Trustee and its successors and assigns.

            In accordance with the standards of the preceding paragraph, the
Master Servicer shall advance or cause to be advanced funds as necessary for
the purpose of effecting the payment of taxes and assessments on the Mortgaged
Properties, which advances shall be reimbursable in the first instance from
related collections from the Mortgagors pursuant to Section 3.06, and further
as provided in Section 3.08. The costs incurred by the Master Servicer, if
any, in effecting the timely payments of taxes and assessments on the
Mortgaged Properties and related insurance premiums shall not, for the purpose
of


                                     III-1
<PAGE>


calculating monthly distributions to the Certificateholders, be added to
the Stated Principal Balances of the related Mortgage Loans, notwithstanding
that the terms of such Mortgage Loans so permit.

            SECTION 3.02. Subservicing; Enforcement of the Obligations of
                          Subservicers.

            (a) The Master Servicer may arrange for the subservicing of any
Mortgage Loan by a Subservicer pursuant to a subservicing agreement; provided,
however, that such subservicing arrangement and the terms of the related
subservicing agreement must provide for the servicing of such Mortgage Loans
in a manner consistent with the servicing arrangements contemplated hereunder.
Unless the context otherwise requires, references in this Agreement to actions
taken or to be taken by the Master Servicer in servicing the Mortgage Loans
include actions taken or to be taken by a Subservicer on behalf of the Master
Servicer. Notwithstanding the provisions of any subservicing agreement, any of
the provisions of this Agreement relating to agreements or arrangements
between the Master Servicer and a Subservicer or reference to actions taken
through a Subservicer or otherwise, the Master Servicer shall remain obligated
and liable to the Depositor, the Trustee and the Certificateholders for the
servicing and administration of the Mortgage Loans in accordance with the
provisions of this Agreement without diminution of such obligation or
liability by virtue of such subservicing agreements or arrangements or by
virtue of indemnification from the Subservicer and to the same extent and
under the same terms and conditions as if the Master Servicer alone were
servicing and administering the Mortgage Loans. All actions of each
Subservicer performed pursuant to the related subservicing agreement shall be
performed as an agent of the Master Servicer with the same force and effect as
if performed directly by the Master Servicer.

            (b) For purposes of this Agreement, the Master Servicer shall be
deemed to have received any collections, recoveries or payments with respect
to the Mortgage Loans that are received by a Subservicer regardless of whether
such payments are remitted by the Subservicer to the Master Servicer.

             SECTION 3.03. Rights of the Depositor and the Trustee in Respect
                          of the Master Servicer.

            The Depositor may, but is not obligated to, enforce the
obligations of the Master Servicer hereunder and may, but is not obligated to,
perform, or cause a designee to perform, any defaulted obligation of the
Master Servicer hereunder and in connection with any such defaulted obligation
to exercise the related rights of the Master Servicer hereunder; provided that
the Master Servicer shall not be relieved of any of its obligations hereunder
by virtue of such performance by the Depositor or its designee. Neither the
Trustee nor the Depositor shall have any responsibility or liability for any
action or failure to act by the Master Servicer nor shall the Trustee or the
Depositor be obligated to supervise the performance of the Master Servicer
hereunder or otherwise.

            SECTION 3.04. Trustee to Act as Master Servicer.

            In the event that the Master Servicer shall for any reason no
longer be the Master Servicer hereunder (including by reason of an Event of
Default or termination by the Depositor), the Trustee or its successor shall
thereupon assume all of the rights and obligations of the Master Servicer
hereunder arising thereafter (except that the Trustee shall not be (i) liable
for losses of the Master Servicer pursuant to Section 3.09 hereof or any acts
or omissions of the predecessor Master Servicer hereunder), (ii) obligated to
make Advances if it is prohibited from doing so by applicable law, (iii)
obligated to effectuate repurchases or substitutions of Mortgage Loans
hereunder including, but not limited to, repurchases or substitutions of
Mortgage Loans pursuant to Section 2.02 or 2.03 hereof, (iv) responsible for
expenses of the Master Servicer pursuant to Section 2.03 or (v) deemed to have
made any representations and warranties of the Master Servicer hereunder). Any
such assumption shall be subject to Section 7.02


                                    III-2
<PAGE>


hereof. If the Master Servicer shall for any reason no longer be the Master
Servicer (including by reason of any Event of Default or termination by the
Depositor), the Trustee or its successor shall succeed to any rights and
obligations of the Master Servicer under each subservicing agreement.

            The Master Servicer shall, upon request of the Trustee, but at the
expense of the Master Servicer, deliver to the assuming party all documents
and records relating to each subservicing agreement or substitute subservicing
agreement and the Mortgage Loans then being serviced thereunder and an
accounting of amounts collected or held by it and otherwise use its best
efforts to effect the orderly and efficient transfer of the substitute
subservicing agreement to the assuming party.

            SECTION 3.05. Collection of Mortgage Loan Payments; Certificate
                          Account; Distribution Account; the Supplemental
                          Interest Trust, the Reserve Fund.

            (a) The Master Servicer shall make reasonable efforts in
accordance with the customary and usual standards of practice of prudent
mortgage servicers to collect all payments called for under the terms and
provisions of the Mortgage Loans to the extent such procedures shall be
consistent with this Agreement and the terms and provisions of any related
Required Insurance Policy. Consistent with the foregoing, the Master Servicer
may in its discretion (i) waive any late payment charge or any Prepayment
Charge or penalty interest in connection with the prepayment of a Mortgage
Loan and (ii) extend the due dates for payments due on a Mortgage Note for a
period not greater than 180 days; provided, however, that the Master Servicer
cannot extend the maturity of any such Mortgage Loan past the date on which
the final payment is due on the latest maturing Mortgage Loan as of the
Cut-off Date. In the event of any such arrangement, the Master Servicer shall
make Advances on the related Mortgage Loan in accordance with the provisions
of Section 4.01 during the scheduled period in accordance with the
amortization schedule of such Mortgage Loan without modification thereof by
reason of such arrangements. The Master Servicer shall not be required to
institute or join in litigation with respect to collection of any payment
(whether under a Mortgage, Mortgage Note or otherwise or against any public or
governmental authority with respect to a taking or condemnation) if it
reasonably believes that enforcing the provision of the Mortgage or other
instrument pursuant to which such payment is required is prohibited by
applicable law.

            (b) The Master Servicer shall establish and maintain a Certificate
Account into which the Master Servicer shall deposit or cause to be deposited
no later than two Business Days after receipt (or, if the current long-term
credit rating of Countrywide is reduced below "A-" by S&P or Fitch, or "A3" by
Moody's, the Master Servicer shall deposit or cause to be deposited on a daily
basis within one Business Day of receipt), except as otherwise specifically
provided herein, the following payments and collections remitted by
Subservicers or received by it in respect of Mortgage Loans subsequent to the
Cut-off Date (other than in respect of principal and interest due on the
Mortgage Loans on or before the Cut-off Date) and the following amounts
required to be deposited hereunder:

            (i) all payments on account of principal on the Mortgage Loans,
      including Principal Prepayments;

            (ii) all payments on account of interest on the Mortgage Loans,
      net of the Master Servicing Fee, Prepayment Interest Excess and any
      lender-paid mortgage insurance premiums;

            (iii) [Reserved];


                                    III-3
<PAGE>


            (iv) all Insurance Proceeds, Subsequent Recoveries and Liquidation
      Proceeds, other than proceeds to be applied to the restoration or repair
      of the Mortgaged Property or released to the Mortgagor in accordance
      with the Master Servicer's normal servicing procedures;

            (v) any amount required to be deposited by the Master Servicer or
      the Depositor pursuant to Section 3.05(e) in connection with any losses
      on Permitted Investments for which it is responsible;

            (vi) any amounts required to be deposited by the Master Servicer
      pursuant to Section 3.09(c) and in respect of net monthly rental income
      from REO Property pursuant to Section 3.11 hereof;

            (vii) all Substitution Adjustment Amounts;

            (viii) all Advances made by the Master Servicer pursuant to
      Section 4.01; and

            (ix) any other amounts required to be deposited hereunder.

            In addition, with respect to any Mortgage Loan that is subject to
a buydown agreement, on each Due Date for such Mortgage Loan, in addition to
the monthly payment remitted by the Mortgagor, the Master Servicer shall cause
funds to be deposited into the Certificate Account in an amount required to
cause an amount of interest to be paid with respect to such Mortgage Loan
equal to the amount of interest that has accrued on such Mortgage Loan from
the preceding Due Date at the Mortgage Rate net of the Master Servicing Fee.

            The foregoing requirements for remittance by the Master Servicer
shall be exclusive, it being understood and agreed that, without limiting the
generality of the foregoing, payments in the nature of Prepayment Charges,
late payment charges or assumption fees, if collected, need not be remitted by
the Master Servicer. In the event that the Master Servicer shall remit any
amount not required to be remitted, it may at any time withdraw or direct the
institution maintaining the Certificate Account to withdraw such amount from
the Certificate Account, any provision herein to the contrary notwithstanding.
Such withdrawal or direction may be accomplished by delivering written notice
thereof to the Trustee or such other institution maintaining the Certificate
Account which describes the amounts deposited in error in the Certificate
Account. The Master Servicer shall maintain adequate records with respect to
all withdrawals made pursuant to this Section. All funds deposited in the
Certificate Account shall be held in trust for the Certificateholders until
withdrawn in accordance with Section 3.08.

            (c) [Reserved].

            (d) The Trustee shall establish and maintain, on behalf of the
Certificateholders, the Distribution Account. The Trustee shall, promptly upon
receipt, deposit in the Distribution Account and retain therein the following:

            (i) the aggregate amount remitted by the Master Servicer to the
      Trustee pursuant to Section 3.08(a)(ix);

            (ii) any amount deposited by the Master Servicer or the Depositor
      pursuant to Section 3.05(e) in connection with any losses on Permitted
      Investments for which it is responsible; and


                                    III-4
<PAGE>


            (iii) any other amounts deposited hereunder which are required to
      be deposited in the Distribution Account.

            In the event that the Master Servicer shall remit any amount not
required to be remitted, it may at any time direct the Trustee to withdraw
such amount from the Distribution Account, any provision herein to the
contrary notwithstanding. Such direction may be accomplished by delivering an
Officer's Certificate to the Trustee which describes the amounts deposited in
error in the Distribution Account. All funds deposited in the Distribution
Account shall be held by the Trustee in trust for the Certificateholders until
disbursed in accordance with this Agreement or withdrawn in accordance with
Section 3.08. In no event shall the Trustee incur liability for withdrawals
from the Distribution Account at the direction of the Master Servicer.

            (e) Each institution at which the Certificate Account or the
Distribution Account is maintained shall invest the funds therein as directed
in writing by the Master Servicer in Permitted Investments, which shall mature
not later than (i) in the case of the Certificate Account, the second Business
Day next preceding the related Distribution Account Deposit Date (except that
if such Permitted Investment is an obligation of the institution that
maintains such account, then such Permitted Investment shall mature not later
than the Business Day next preceding such Distribution Account Deposit Date)
and (ii) in the case of the Distribution Account, the Business Day next
preceding the Distribution Date (except that if such Permitted Investment is
an obligation of the institution that maintains such fund or account, then
such Permitted Investment shall mature not later than such Distribution Date)
and, in each case, shall not be sold or disposed of prior to its maturity. All
such Permitted Investments shall be made in the name of the Trustee, for the
benefit of the Certificateholders. All income and gain net of any losses
realized from any such investment of funds on deposit in the Certificate
Account, or the Distribution Account shall be for the benefit of the Master
Servicer as servicing compensation and shall be remitted to it monthly as
provided herein. The amount of any realized losses in the Certificate Account
or the Distribution Account incurred in any such account in respect of any
such investments shall promptly be deposited by the Master Servicer in the
Certificate Account or paid to the Trustee for deposit into the Distribution
Account, as applicable. The Trustee in its fiduciary capacity shall not be
liable for the amount of any loss incurred in respect of any investment or
lack of investment of funds held in the Certificate Account or the
Distribution Account and made in accordance with this Section 3.05.

            (f) The Master Servicer shall give notice to the Trustee, each
Seller, each Rating Agency and the Depositor of any proposed change of the
location of the Certificate Account prior to any change thereof. The Trustee
shall give notice to the Master Servicer, each Seller, each Rating Agency and
the Depositor of any proposed change of the location of the Distribution
Account prior to any change thereof. The Supplemental Interest Trustee shall
give notice to the Master Servicer, each Seller, each Rating Agency and the
Depositor of any proposed change of the location of the Corridor Contract
Reserve Fund prior to any change thereof.

            (g) On the Closing Date, there is hereby established a separate
trust (the "Supplemental Interest Trust"), the assets of which shall consist
of the Reserve Fund and the Supplemental Interest Trustee's rights and
obligations under the Derivative Contracts. The Supplemental Interest Trust
shall be maintained by the Supplemental Interest Trustee, who initially, shall
be the Trustee.

            On the Closing Date, the Supplemental Interest Trustee shall
establish and maintain in its name, in trust for the benefit of the Holders of
the Covered Certificates, the Reserve Fund, and shall deposit $1,000 therein
upon receipt from or on behalf of the Depositor of such amount. All funds on
deposit in the Reserve Fund shall be held separate and apart from, and shall
not be commingled with, any other moneys, including without limitation, other
moneys held by the Trustee pursuant to this Agreement.


                                     III-5
<PAGE>


            On each Distribution Date, the Supplemental Interest Trustee shall
deposit into the Reserve Fund all amounts received in respect of the
Derivative Contracts for the related Interest Accrual Period. The Supplemental
Interest Trustee shall make withdrawals from the Reserve Fund to make
distributions pursuant to Section 4.09 exclusively (other than as expressly
provided for in Section 3.08). Notwithstanding anything to the contrary in
this Agreement, the Supplemental Interest Trustee shall be allowed to transfer
funds in the Reserve Fund to the Trustee to facilitate, for administrative
purposes, distribution of such funds to Certificateholders through the
Distribution Account.

            Funds in the Reserve Fund will be invested in The Bank of New York
cash reserves. Any net investment earnings will be retained in the Reserve
Fund until withdrawn upon the earlier of the reduction of the aggregate Class
Certificate Balance of the Class 1-A-2, Class 1-A-3 and Class 1-A-4
Certificates to zero and the termination of this Agreement. Any losses
incurred in the Reserve Fund in respect of the investment will be charged
against amounts on deposit in the Reserve Fund (or the investments)
immediately as realized. The Trustee, on behalf of the Supplemental Interest
Trust, will not be liable for the amount of any loss incurred in respect of
any investment or lack of investment of funds held in the Reserve Fund and
made in accordance with this Agreement.

            SECTION 3.06. Collection of Taxes, Assessments and Similar Items;
                          Escrow Accounts.

            (a) To the extent required by the related Mortgage Note and not
violative of current law, the Master Servicer shall establish and maintain one
or more accounts (each, an "Escrow Account") and deposit and retain therein
all collections from the Mortgagors (or advances by the Master Servicer) for
the payment of taxes, assessments, hazard insurance premiums or comparable
items for the account of the Mortgagors. Nothing herein shall require the
Master Servicer to compel a Mortgagor to establish an Escrow Account in
violation of applicable law.

            (b) Withdrawals of amounts so collected from the Escrow Accounts
may be made only to effect timely payment of taxes, assessments, hazard
insurance premiums, condominium or PUD association dues, or comparable items,
to reimburse the Master Servicer out of related collections for any payments
made pursuant to Sections 3.01 hereof (with respect to taxes and assessments
and insurance premiums) and 3.09 hereof (with respect to hazard insurance), to
refund to any Mortgagors any sums determined to be overages, to pay interest,
if required by law or the terms of the related Mortgage or Mortgage Note, to
Mortgagors on balances in the Escrow Account or to clear and terminate the
Escrow Account at the termination of this Agreement in accordance with Section
9.01 hereof. The Escrow Accounts shall not be a part of the Trust Fund.

            (c) The Master Servicer shall advance any payments referred to in
Section 3.06(a) that are not timely paid by the Mortgagors on the date when
the tax, premium or other cost for which such payment is intended is due, but
the Master Servicer shall be required so to advance only to the extent that
such advances, in the good faith judgment of the Master Servicer, will be
recoverable by the Master Servicer out of Insurance Proceeds, Liquidation
Proceeds or otherwise.

            SECTION 3.07. Access to Certain Documentation and Information
                          Regarding the Mortgage Loans.

            The Master Servicer shall afford each Seller, the Depositor and
the Trustee reasonable access to all records and documentation regarding the
Mortgage Loans and all accounts, insurance information and other matters
relating to this Agreement, such access being afforded without charge, but


                                    III-6
<PAGE>


only upon reasonable request and during normal business hours at the office
designated by the Master Servicer.

            Upon reasonable advance notice in writing, the Master Servicer
will provide to each Certificateholder and/or Certificate Owner which is a
savings and loan association, bank or insurance company certain reports and
reasonable access to information and documentation regarding the Mortgage
Loans sufficient to permit such Certificateholder and/or Certificate Owner to
comply with applicable regulations of the OTS or other regulatory authorities
with respect to investment in the Certificates; provided that the Master
Servicer shall be entitled to be reimbursed by each such Certificateholder
and/or Certificate Owner for actual expenses incurred by the Master Servicer
in providing such reports and access.

            SECTION 3.08. Permitted Withdrawals from the Certificate Account,
                          the Distribution Account, the Reserve Fund.

            (a) The Master Servicer may from time to time make withdrawals
from the Certificate Account for the following purposes:

             (i) to pay to the Master Servicer (to the extent not previously
      retained by the Master Servicer) the servicing compensation to which it
      is entitled pursuant to Section 3.14, and to pay to the Master Servicer,
      as additional servicing compensation, earnings on or investment income
      with respect to funds in or credited to the Certificate Account;

            (ii) to reimburse each of the Master Servicer and the Trustee for
      unreimbursed Advances made by it, such right of reimbursement pursuant
      to this subclause (ii) being limited to amounts received on the Mortgage
      Loan(s) in respect of which any such Advance was made;

            (iii) to reimburse each of the Master Servicer and the Trustee for
      any Nonrecoverable Advance previously made by it;

            (iv) to reimburse the Master Servicer for Insured Expenses from
      the related Insurance Proceeds;

            (v) to reimburse the Master Servicer for (a) unreimbursed
      Servicing Advances, the Master Servicer's right to reimbursement
      pursuant to this clause (a) with respect to any Mortgage Loan being
      limited to amounts received on such Mortgage Loan(s) which represent
      late recoveries of the payments for which such advances were made
      pursuant to Section 3.01 or Section 3.06 and (b) for unpaid Master
      Servicing Fees as provided in Section 3.11 hereof;

            (vi) to pay to the purchaser, with respect to each Mortgage Loan
      or property acquired in respect thereof that has been purchased pursuant
      to Section 2.02, 2.03 or 3.11, all amounts received thereon after the
      date of such purchase;

            (vii) to reimburse the Sellers, the Master Servicer or the
      Depositor for expenses incurred by any of them and reimbursable pursuant
      to Section 6.03 hereof;

            (viii) to withdraw any amount deposited in the Certificate Account
      and not required to be deposited therein;


                                    III-7
<PAGE>


             (ix) on or prior to the Distribution Account Deposit Date, to
      withdraw an amount equal to the sum of (a) the related Available Funds
      and (b) the Trustee Fee for such Distribution Date and remit such amount
      to the Trustee for deposit in the Distribution Account; and

            (x) to clear and terminate the Certificate Account upon
      termination of this Agreement pursuant to Section 9.01 hereof.

            The Master Servicer shall keep and maintain separate accounting,
on a Mortgage Loan by Mortgage Loan basis, for the purpose of justifying any
withdrawal from the Certificate Account pursuant to such subclauses (i), (ii),
(iv), (v) and (vi). Prior to making any withdrawal from the Certificate
Account pursuant to subclause (iii), the Master Servicer shall deliver to the
Trustee an Officer's Certificate of a Servicing Officer indicating the amount
of any previous Advance determined by the Master Servicer to be a
Nonrecoverable Advance and identifying the related Mortgage Loans(s), and
their respective portions of such Nonrecoverable Advance.

            (b) The Trustee shall withdraw funds from the Distribution Account
for distributions to Certificateholders in the manner specified in this
Agreement (and to withhold from the amounts so withdrawn, the amount of any
taxes that it is authorized to withhold pursuant to the third paragraph of
Section 8.11). In addition, the Trustee may from time to time make withdrawals
from the Distribution Account for the following purposes:

             (i) to pay to itself the Trustee Fee for the related Distribution
      Date;

            (ii) to pay to the Master Servicer as additional servicing
      compensation earnings on or investment income with respect to funds in
      the Distribution Account;

            (iii) to withdraw and return to the Master Servicer any amount
      deposited in the Distribution Account and not required to be deposited
      therein;

            (iv) to reimburse the Trustee for any unreimbursed Advances made
      by it pursuant to Section 4.01(b) hereof, such right of reimbursement
      pursuant to this subclause (iv) being limited to (x) amounts received on
      the related Mortgage Loan(s) in respect of which any such Advance was
      made and (y) amounts not otherwise reimbursed to the Trustee pursuant to
      Section 3.08(a)(ii) hereof;

            (v) to reimburse the Trustee for any Nonrecoverable Advance
      previously made by the Trustee pursuant to Section 4.01(b) hereof, such
      right of reimbursement pursuant to this subclause (v) being limited to
      amounts not otherwise reimbursed to the Trustee pursuant to Section
      3.08(a)(iii) hereof; and

            (vi) to clear and terminate the Distribution Account upon
      termination of the Agreement pursuant to Section 9.01 hereof.

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