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EXHIBIT 4.1 POOLING AND SERVICING AGREEMENT

Pooling and Servicing Agreement

EXHIBIT 4.1 POOLING AND SERVICING AGREEMENT | Document Parties: BANC OF AMERICA FUNDING 2007-A TRUST | BANC OF AMERICA FUNDING CORPORATION |  WELLS FARGO BANK, N.A | U.S. BANK NATIONAL ASSOCIATION You are currently viewing:
This Pooling and Servicing Agreement involves

BANC OF AMERICA FUNDING 2007-A TRUST | BANC OF AMERICA FUNDING CORPORATION | WELLS FARGO BANK, N.A | U.S. BANK NATIONAL ASSOCIATION

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Title: EXHIBIT 4.1 POOLING AND SERVICING AGREEMENT
Governing Law: New York     Date: 2/15/2007

EXHIBIT 4.1 POOLING AND SERVICING AGREEMENT, Parties: banc of america funding 2007-a trust , banc of america funding corporation ,  wells fargo bank  n.a , u.s. bank national association
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                                                                  EXECUTION COPY

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                      BANC OF AMERICA FUNDING CORPORATION,
                                   as Depositor,

                             WELLS FARGO BANK, N.A.,
                as Master Servicer and Securities Administrator,

                                       and

                         U.S. BANK NATIONAL ASSOCIATION,
                                    as Trustee



                         POOLING AND SERVICING AGREEMENT

                             Dated January 31, 2007


                       ----------------------------------

                       Mortgage Pass-Through Certificates

                                  Series 2007-A




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

                               TABLE OF CONTENTS

                                                                             Page
ARTICLE I DEFINITIONS.........................................................10

   Section 1.01        Defined Terms...........................................10
   Section 1.02        Interest Calculations...................................57

ARTICLE II CONVEYANCE OF MORTGAGE LOANS ORIGINAL ISSUANCE OF CERTIFICATES.....57

  Section 2.01   Conveyance of Mortgage Loans...................................57
  Section 2.02   Acceptance by the Trustee or Custodian of the Mortgage Loans...62
  Section 2.03   Representations, Warranties and Covenants of the Master
               Servicer.......................................................67
  Section 2.04   Representations and Warranties of the Depositor as to the
               Mortgage Loans.................................................68
  Section 2.05   Designation of Interests in the REMICs.........................69
  Section 2.06   Designation of Start-up Day....................................69
  Section 2.07   REMIC Certificate Maturity Date................................69
  Section 2.08   Execution and Delivery of Certificates.........................70
  Section 2.09   Establishment of the Trust.....................................70
  Section 2.10   Purpose and Powers of the Trust................................70
  Section 2.11   Rights of the NIMS Insurer.....................................71
              
ARTICLE III ADMINISTRATION AND MASTER SERVICING OF MORTGAGE LOANS.............71

  Section 3.01   Master Servicing of the Mortgage Loans.........................71
  Section 3.02   Monitoring of Servicers........................................72
  Section 3.03   Fidelity Bond; Errors and Omissions Insurance..................74
  Section 3.04   Access to Certain Documentation................................74
  Section 3.05   Maintenance of Primary Mortgage Insurance Policy; Claims.......74
  Section 3.06   Rights of the Depositor, the Securities Administrator and the
               Trustee in Respect of the Master Servicer. ....................75
  Section 3.07   Trustee to Act as Master Servicer..............................75
  Section 3.08   Servicer Custodial Accounts and Escrow Accounts................76
  Section 3.09   Collection of Mortgage Loan Payments; Master Servicer
               Custodial Account, Certificate Account and Cap Carryover
               Reserve Account................................................76
  Section 3.10   Access to Certain Documentation and Information Regarding the
               Mortgage Loans.................................................80
  Section 3.11   Permitted Withdrawals from the Certificate Account and the
               Master Servicer Custodial Account..............................80
  Section 3.12   Maintenance of Hazard Insurance and Other Insurance............81
  Section 3.13   Presentment of Claims and Collection of Proceeds...............82
  Section 3.14   Enforcement of Due-On-Sale Clauses; Assumption Agreements......82
  Section 3.15   Realization Upon Defaulted Mortgage Loans; REO Property........82
  Section 3.16   Trustee to Cooperate; Release of Mortgage Files................84
<PAGE>

  Section 3.17   Documents, Records and Funds in Possession of the Master
               Servicer to be Held for the Trustee............................85
  Section 3.18   Master Servicer Compensation...................................86
  Section 3.19   Advances.......................................................86
  Section 3.20   Annual Statement as to Compliance..............................86
  Section 3.21   Assessments of Compliance and Attestation Reports..............87
  Section 3.22   Reports to the Commission......................................89

ARTICLE IV MASTER SERVICER'S CERTIFICATE......................................96

  Section 4.01   Master Servicer's Certificate..................................96

ARTICLE V PAYMENTS AND STATEMENTS TO CERTIFICATEHOLDERS;REMIC ADMINISTRATION..96

  Section 5.01   Distributions..................................................96
  Section 5.02   Priorities of Distributions on the Certificates................97
  Section 5.03   Allocation of Losses..........................................108
  Section 5.04   Statements to Certificateholders..............................109
  Section 5.05   REMIC Tax Returns and Reports to Certificateholders...........112
  Section 5.06   Tax Matters Person............................................113
  Section 5.07   Rights of the Tax Matters Person in Respect of the
               Securities Administrator......................................114
  Section 5.08   REMIC Related Covenants.......................................114
  Section 5.09   Determination of One-Month LIBOR..............................115
  Section 5.10   Master Servicer, Securities Administrator and Trustee
               Indemnification...............................................116
  Section 5.11   Supplemental Interest Trust...................................117
  Section 5.12   Tax Treatment of Swap Payments and Swap Termination Payments..118
  Section 5.13   Grantor Trust Administration..................................119

ARTICLE VI THE CERTIFICATES..................................................120

  Section 6.01   The Certificates..............................................120
  Section 6.02   Registration of Transfer and Exchange of Certificates.........120
  Section 6.03   Mutilated, Destroyed, Lost or Stolen Certificates.............125
  Section 6.04   Persons Deemed Owners.........................................126

ARTICLE VII THE DEPOSITOR AND THE MASTER SERVICER............................126

  Section 7.01   Respective Liabilities of the Depositor and the Master
               Servicer......................................................126
  Section 7.02   Merger or Consolidation of the Depositor or the Master
               Servicer......................................................126
  Section 7.03   Limitation on Liability of the Depositor, the Master
               Servicer and Others...........................................127
  Section 7.04   Depositor and Master Servicer Not to Resign...................127

ARTICLE VIII DEFAULT.........................................................128

  Section 8.01   Events of Default.............................................128
  Section 8.02   Remedies of Trustee...........................................130
<PAGE>

  Section 8.03   Directions by Certificateholders and Duties of Trustee
               During Event of Default.......................................130
  Section 8.04   Action upon Certain Failures of the Master Servicer and
                upon Event of Default.........................................130
  Section 8.05   Trustee to Act; Appointment of Successor......................131
  Section 8.06   Notification to Certificateholders............................132

ARTICLE IX THE TRUSTEE AND THE SECURITIES ADMINISTRATOR......................132

  Section 9.01   Duties of Trustee and Securities Administrator................132
  Section 9.02   Certain Matters Affecting the Trustee and the Securities
               Administrator.................................................136
  Section 9.03   Neither Trustee nor Securities Administrator Liable for
               Certificates or Mortgage Loans................................137
  Section 9.04   Trustee and Securities Administrator May Own Certificates.....139
  Section 9.05   Eligibility Requirements for Trustee and the Securities
               Administrator.................................................139
  Section 9.06   Resignation and Removal of Trustee and the Securities
                Administrator.................................................140
  Section 9.07   Successor Trustee or Securities Administrator.................141
  Section 9.08   Merger or Consolidation of Trustee or Securities
               Administrator.................................................141
  Section 9.09   Appointment of Co-Trustee or Separate Trustee.................142
  Section 9.10   Authenticating Agents.........................................143
  Section 9.11   Securities Administrator's Fees and Expenses and Trustee's
               Fees and Expenses.............................................144
  Section 9.12   Appointment of Custodian......................................144
  Section 9.13   Paying Agents.................................................145
  Section 9.14   Limitation of Liability.......................................146
  Section 9.15   Trustee or Securities Administrator May Enforce Claims
               Without Possession of Certificates............................146
  Section 9.16   Suits for Enforcement.........................................146
  Section 9.17   Waiver of Bond Requirement....................................147
  Section 9.18   Waiver of Inventory, Accounting and Appraisal Requirement.....147

ARTICLE X TERMINATION........................................................147

  Section 10.01 Termination upon Purchase or Liquidation of All Mortgage
               Loans.........................................................147
  Section 10.02 Additional Termination Requirements...........................149

ARTICLE XI MISCELLANEOUS PROVISIONS..........................................150

  Section 11.01 Amendment.....................................................150
  Section 11.02 Recordation of Agreement; Counterparts........................151
  Section 11.03 Limitation on Rights of Certificateholders....................152
  Section 11.04 Governing Law.................................................153
  Section 11.05 Notices.......................................................153
  Section 11.06 Severability of Provisions....................................154
  Section 11.07 Certificates Nonassessable and Fully Paid.....................154
  Section 11.08 Access to List of Certificateholders..........................154
  Section 11.09 Recharacterization............................................154
<PAGE>

Section 11.10 Regulation AB Compliance; Intent of the Parties;
               Reasonableness................................................155
  Section 11.11 Third Party Beneficiary.......................................155

<PAGE>


                                    EXHIBITS

Exhibit A-1A1       Form of Face of Class 1-A-1 Certificate
Exhibit A-2A1       Form of Face of Class 2-A-1 Certificate
Exhibit A-2A2       Form of Face of Class 2-A-2 Certificate
Exhibit A-2A3       Form of Face of Class 2-A-3 Certificate
Exhibit A-2A4       Form of Face of Class 2-A-4 Certificate
Exhibit A-2A5       Form of Face of Class 2-A-5 Certificate
Exhibit B-M1        Form of Face of Class M-1 Certificate
Exhibit B-M2        Form of Face of Class M-2 Certificate
Exhibit B-M3        Form of Face of Class M-3 Certificate
Exhibit B-M4        Form of Face of Class M-4 Certificate
Exhibit B-M5        Form of Face of Class M-5 Certificate
Exhibit B-M6        Form of Face of Class M-6 Certificate
Exhibit B-M7        Form of Face of Class M-7 Certificate
Exhibit B-M8        Form of Face of Class M-8 Certificate
Exhibit B-CE        Form of Face of Class CE Certificate
Exhibit B-R         Form of Face of Class R Certificate
Exhibit C           Form of Reverse of all Certificates
        Loan Group 1 Mortgage Loan Schedule
Exhibit D-2         Loan Group 2 Mortgage Loan Schedule
Exhibit E           Request for Release of Documents
Exhibit F           Form of Certification of Establishment of Account
Exhibit G-1         Form of Transferor's Certificate
Exhibit G-2         Form of Transferee's Certificate
Exhibit H           Form of Transferee Representation Letter for ERISA
                   Restricted Certificates
Exhibit I            Form of Affidavit Regarding Transfer of Residual Certificate
Exhibit J           List of Recordation States
Exhibit K           Form of Initial Certification
Exhibit L           Form of Final Certification
Exhibit M           Form of Sarbanes-Oxley Certification
Exhibit N           Relevant Servicing Criteria
Exhibit O           Additional Form 10-D Disclosure
Exhibit P           Additional Form 10-K Disclosure
Exhibit Q           Form 8-K Disclosure Information
Exhibit R           Form of Back-up Certification
Exhibit S           Form of Additional Disclosure Notification
Exhibit T           Form of Transferor Certificate for Residual Certificate
Exhibit U           Interest Rate Swap Agreement
Exhibit V           Interest Rate Cap Agreement A
Exhibit W           Interest Rate Cap Agreement B
                  


<PAGE>


                        POOLING AND SERVICING AGREEMENT

     THIS POOLING AND   SERVICING   AGREEMENT,   dated   January 31, 2007, is hereby
executed   by and   among   BANC   OF   AMERICA   FUNDING   CORPORATION,   as   depositor
(together with its permitted   successors and assigns,   the   "Depositor"),   WELLS
FARGO BANK, N.A., as master servicer (together with its permitted successors and
assigns,    in   such    capacity,    the   "Master    Servicer")   and   as   securities
administrator   (together   with its   permitted   successors   and assigns,   in such
capacity, the "Securities   Administrator"),   and U.S. BANK NATIONAL ASSOCIATION,
as trustee (together with its permitted successors and assigns, the "Trustee").

                                 WITNESSETH THAT:

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

                             PRELIMINARY STATEMENT

     The Depositor intends to sell pass-through certificates (collectively,   the
"Certificates"),   to be   issued   hereunder   in   multiple   Classes,   which in the
aggregate, together with the Uncertificated Class Swap-IO Interest issued by the
Upper-Tier REMIC, will evidence the entire beneficial   ownership interest in the
Trust Estate created hereunder. The Certificates will consist of sixteen Classes
of Certificates,   designated as (i) the Class 1-A-1,   Class 2-A-1,   Class 2-A-2,
Class 2-A-3,   Class 2-A-4 and Class 2-A-5   Certificates,   (ii) Class M-1,   Class
M-2,   Class M-3,   Class   M-4,   Class   M-5,   Class   M-6,   Class M-7 and Class M-8
Certificates,   (iii) the Class CE Certificates and (iv) the Class R Certificate.
The   descriptions   of the   Lower-Tier   REMIC,   the   Middle-Tier   REMIC   and   the
Upper-Tier   REMIC   that   follow   are   part   of the   Preliminary   Statement.   Any
inconsistencies   or ambiguities in this   Agreement or in the   administration   of
this Agreement   shall be resolved   pursuant to the terms of Section 11.01 hereof
in a manner that preserves the validity of such REMIC elections described below.


<PAGE>

                                Lower-Tier REMIC

     As provided herein,   the Securities   Administrator will make an election to
treat the segregated pool of assets consisting of the Mortgage Loans and certain
other   related    assets    subject   to   this   Agreement   (but   exclusive   of   the
Supplemental Interest Trust, the Interest Rate Swap Agreement, the Interest Rate
Cap   Agreements,   the   Derivative   Account,   the Interest   Rate Cap   Agreement B
Account   and   the Cap   Carryover   Reserve   Account)   as a real   estate   mortgage
investment   conduit   ("REMIC")   for   federal   income   tax   purposes,    and   such
segregated   pool of assets will be   designated   as the   "Lower-Tier   REMIC." The
Class LR Interest will   represent the sole class of "residual   interests" in the
Lower-Tier   REMIC for   purposes of the REMIC   Provisions.   The   following   table
irrevocably   sets forth the   designation,   the   Uncertificated   Lower-Tier REMIC
Pass-Through Rate, the initial   Uncertificated   Balance, and solely for purposes
of satisfying   Treasury   Regulations   Section   1.860G-1(a)(4)(iii),   the "latest
possible   maturity   date"   for   each of the   Uncertificated   Lower-Tier   Regular
Interests. None of the Uncertificated Lower-Tier Interests will be certificated.

<TABLE>
<S>      <C>     <C>     <C>     <C>     <C>     <C>

-------------- --------------- ----------------------- -------------------
                   Initial        Uncertificated Lower-    Latest Possible
  Designation    Uncertificated      Tier REMIC Pass-          Maturity
                  Balance            Through Rate             Date(1)
-------------- --------------- ----------------------- -------------------

LRI-I           $38,937,564.19         Variable(2)        February 20, 2047
LRI-1-A          $5,488,530.00         Variable(2)        February 20, 2047
LRI-1-B          $5,488,530.00         Variable(2)        February 20, 2047
LRI-2-A           $5,802,495.50         Variable(2)        February 20, 2047
LRI-2-B          $5,802,495.50         Variable(2)        February 20, 2047
LRI-3-A          $6,101,958.00         Variable(2)        February 20, 2047
LRI-3-B          $6,101,958.00         Variable(2)         February 20, 2047
LRI-4-A          $6,385,769.00         Variable(2)        February 20, 2047
LRI-4-B          $6,385,769.00         Variable(2)        February 20, 2047
LRI-5-A          $6,653,608.00         Variable(2)        February 20, 2047
LRI-5-B           $6,653,608.00         Variable(2)        February 20, 2047
LRI-6-A          $6,904,206.50         Variable(2)        February 20, 2047
LRI-6-B          $6,904,206.50         Variable(2)        February 20, 2047
LRI-7-A          $7,137,199.00         Variable(2)         February 20, 2047
LRI-7-B          $7,137,199.00         Variable(2)        February 20, 2047
LRI-8-A          $7,356,613.00         Variable(2)        February 20, 2047
LRI-8-B          $7,356,613.00         Variable(2)        February 20, 2047
LRI-9-A           $7,566,135.00         Variable(2)        February 20, 2047
LRI-9-B          $7,566,135.00         Variable(2)        February 20, 2047
LRI-10-A         $7,798,790.00         Variable(2)        February 20, 2047
LRI-10-B         $7,798,790.00         Variable(2)         February 25, 2047
LRI-11-A         $7,910,986.00         Variable(2)        February 20, 2047
LRI-11-B         $7,910,986.00         Variable(2)        February 20, 2047
LRI-12-A         $8,032,606.50         Variable(2)        February 20, 2047
LRI-12-B         $8,032,606.50         Variable(2)        February 20, 2047
LRI-13-A         $8,133,330.00         Variable(2)        February 20, 2047
LRI-13-B         $8,133,330.00         Variable(2)        February 20, 2047

<PAGE>

-------------- --------------- ----------------------- -------------------
                  Initial        Uncertificated Lower-    Latest Possible
  Designation    Uncertificated      Tier REMIC Pass-          Maturity
                  Balance            Through Rate             Date(1)
-------------- --------------- ----------------------- -------------------

LRI-14-A         $8,188,702.50         Variable(2)        February 20, 2047
LRI-14-B         $8,188,702.50         Variable(2)        February 20, 2047
LRI-15-A         $8,220,347.00         Variable(2)         February 20, 2047
LRI-15-B         $8,220,347.00         Variable(2)        February 20, 2047
LRI-16-A         $8,264,207.00         Variable(2)        February 20, 2047
LRI-16-B         $8,264,207.00         Variable(2)        February 20, 2047
LRI-17-A          $8,287,955.50         Variable(2)        February 20, 2047
LRI-17-B         $8,287,955.50         Variable(2)        February 20, 2047
LRI-18-A         $8,293,715.00         Variable(2)        February 20, 2047
LRI-18-B         $8,293,715.00         Variable(2)         February 20, 2047
LRI-19-A         $8,281,904.00         Variable(2)        February 20, 2047
LRI-19-B         $8,281,904.00         Variable(2)        February 20, 2047
LRI-20-A         $8,262,728.00         Variable(2)        February 20, 2047
LRI-20-B          $8,262,728.00         Variable(2)        February 20, 2047
LRI-21-A         $8,179,321.50         Variable(2)        February 20, 2047
LRI-21-B         $8,179,321.50         Variable(2)        February 20, 2047
LRI-22-A         $8,100,261.50         Variable(2)         February 20, 2047
LRI-22-B         $8,100,261.50         Variable(2)        February 20, 2047
LRI-23-A         $7,981,349.00         Variable(2)        February 20, 2047
LRI-23-B         $7,981,349.00         Variable(2)        February 20, 2047
LRI-24-A         $7,780,518.00         Variable(2)        February 20, 2047
LRI-24-B         $7,780,518.00         Variable(2)        February 20, 2047
LRI-25-A         $7,548,207.50         Variable(2)        February 20, 2047
LRI-25-B         $7,548,207.50         Variable(2)         February 20, 2047
LRI-26-A         $7,313,041.00         Variable(2)        February 20, 2047
LRI-26-B         $7,313,041.00         Variable(2)        February 20, 2047
LRI-27-A         $7,078,132.00         Variable(2)        February 20, 2047
LRI-27-B         $7,078,132.00         Variable(2)        February 20, 2047
LRI-28-A         $6,844,134.00         Variable(2)        February 20, 2047
LRI-28-B         $6,844,134.00         Variable(2)        February 20, 2047
LRI-29-A         $6,616,485.50         Variable(2)         February 20, 2047
LRI-29-B         $6,616,485.50         Variable(2)        February 20, 2047
LRI-30-A         $6,401,481.50         Variable(2)        February 20, 2047
LRI-30-B         $6,401,481.50         Variable(2)        February 20, 2047
LRI-31-A         $6,169,805.50         Variable(2)        February 20, 2047
LRI-31-B         $6,169,805.50         Variable(2)        February 20, 2047
LRI-32-A         $5,931,403.00         Variable(2)        February 20, 2047
LRI-32-B         $5,931,403.00         Variable(2)        February 20, 2047
LRI-33-A         $5,698,794.00         Variable(2)        February 20, 2047
LRI-33-B         $5,698,794.00         Variable(2)        February 20, 2047
LRI-34-A         $5,485,591.50         Variable(2)        February 25, 2047
LRI-34-B         $5,485,591.50         Variable(2)        February 20, 2047
<PAGE>

-------------- --------------- ----------------------- -------------------
                  Initial        Uncertificated Lower-    Latest Possible
  Designation    Uncertificated      Tier REMIC Pass-          Maturity
                  Balance            Through Rate             Date(1)
-------------- --------------- ----------------------- -------------------

LRI-35-A         $5,322,512.00         Variable(2)        February 20, 2047
LRI-35-B         $5,322,512.00         Variable(2)        February 20, 2047
LRI-36-A         $5,164,489.00         Variable(2)        February 20, 2047
LRI-36-B         $5,164,489.00         Variable(2)        February 20, 2047
LRI-37-A         $4,960,595.50         Variable(2)         February 20, 2047
LRI-37-B         $4,960,595.50         Variable(2)        February 20, 2047
LRI-38-A         $4,725,224.00         Variable(2)        February 20, 2047
LRI-38-B         $4,725,224.00         Variable(2)        February 20, 2047
LRI-39-A         $4,450,633.50         Variable(2)        February 20, 2047
LRI-39-B         $4,450,633.50         Variable(2)        February 20, 2047
LRI-40-A         $4,208,350.50         Variable(2)        February 20, 2047
LRI-40-B         $4,208,350.50         Variable(2)        February 20, 2047
LRI-41-A         $3,967,345.50         Variable(2)        February 20, 2047
LRI-41-B         $3,967,345.50         Variable(2)        February 20, 2047
LRI-42-A         $3,747,152.50         Variable(2)        February 20, 2047
LRI-42-B         $3,747,152.50         Variable(2)        February 20, 2047
LRI-43-A         $3,506,048.00         Variable(2)        February 20, 2047
LRI-43-B         $3,506,048.00         Variable(2)        February 20, 2047
LRI-44-A         $3,296,311.00         Variable(2)        February 20, 2047
LRI-44-B         $3,296,311.00         Variable(2)        February 20, 2047
LRI-45-A         $3,091,046.00         Variable(2)        February 20, 2047
LRI-45-B         $3,091,046.00         Variable(2)        February 20, 2047
LRI-46-A         $2,919,170.00         Variable(2)        February 20, 2047
LRI-46-B         $2,919,170.00         Variable(2)        February 20, 2047
LRI-47-A         $2,735,865.50         Variable(2)        February 20, 2047
LRI-47-B         $2,735,865.50         Variable(2)        February 20, 2047
LRI-48-A         $2,575,857.00         Variable(2)        February 20, 2047
LRI-48-B         $2,575,857.00         Variable(2)        February 20, 2047
LRI-49-A         $2,434,136.00         Variable(2)        February 20, 2047
LRI-49-B         $2,434,136.00         Variable(2)        February 20, 2047
LRI-50-A         $2,283,049.00         Variable(2)        February 20, 2047
LRI-50-B         $2,283,049.00         Variable(2)        February 20, 2047
LRI-51-A         $2,153,925.50         Variable(2)        February 20, 2047
LRI-51-B         $2,153,925.50         Variable(2)        February 20, 2047
LRI-52-A         $2,021,336.00         Variable(2)        February 20, 2047
LRI-52-B         $2,021,336.00         Variable(2)        February 20, 2047
LRI-53-A         $1,925,256.00         Variable(2)        February 20, 2047
LRI-53-B         $1,925,256.00         Variable(2)        February 20, 2047
LRI-54-A         $1,857,490.50         Variable(2)        February 20, 2047
LRI-54-B         $1,857,490.50         Variable(2)        February 20, 2047
LRI-55-A         $1,955,847.00         Variable(2)        February 20, 2047
LRI-55-B         $1,955,847.00         Variable(2)        February 20, 2047


<PAGE>

-------------- --------------- ----------------------- -------------------
                   Initial        Uncertificated Lower-    Latest Possible
  Designation    Uncertificated      Tier REMIC Pass-          Maturity
                  Balance            Through Rate             Date(1)
-------------- --------------- ----------------------- -------------------

LRI-56-A         $1,952,828.50         Variable(2)        February 20, 2047
LRI-56-B         $1,952,828.50         Variable(2)        February 20, 2047
LRI-57-A         $2,605,290.00         Variable(2)        February 20, 2047
LRI-57-B         $2,605,290.00         Variable(2)        February 25, 2047
LRI-58-A         $3,344,518.00         Variable(2)        February 20, 2047
LRI-58-B         $3,344,518.00         Variable(2)        February 20, 2047
LRI-59-A         $1,863,222.00         Variable(2)        February 20, 2047
LRI-59-B         $1,863,222.00         Variable(2)        February 20, 2047
LRI-60-A        $14,627,515.50         Variable(2)        February 20, 2047
LRI-60-B        $14,627,515.50         Variable(2)        February 20, 2047

</TABLE>


(1)   Solely   for   purposes   of   Section    1.860G-1(a)(4)(iii)   of   the   Treasury
     regulations,   the Distribution Date immediately following the maturity date
     for the Mortgage Loan with the latest   maturity date has been designated as
     the "latest   possible   maturity   date" for each   Uncertificated   Lower-Tier
     Interest.

(2)   Calculated in accordance with the definition of "Uncertificated   Lower-Tier
     REMIC Pass-Through Rate" herein.

<PAGE>

                               Middle-Tier REMIC

      As provided herein,   the Securities   Administrator will make an election to
treat the segregated pool of assets consisting of the Uncertificated   Lower-Tier
Regular   Interests   as a   REMIC   for   federal   income   tax   purposes,   and   such
segregated   pool of assets will be   designated as the   "Middle-Tier   REMIC." The
Class MR Interest will   represent the sole class of "residual   interests" in the
Middle-Tier   REMIC for purposes of the REMIC   Provisions.   The   following   table
irrevocably sets forth the designation,   the   Uncertificated   Middle-Tier   REMIC
Pass-Through Rate, the initial   Uncertificated   Balance, and solely for purposes
of satisfying   Treasury   Regulations   Section   1.860G-1(a)(4)(iii),   the "latest
possible maturity date" for each of the Middle-Tier   Regular Interests.   None of
the Uncertificated Middle-Tier Regular Interests will be certificated.

<TABLE>
<S>      <C>     <C>     <C>     <C>     <C>     <C>

-------------- --------------- ----------------------- -------------------
                    Initial        Uncertificated Middle-   
                Uncertificated      Tier REMIC Pass-       Latest Possible
Designations        Balance            Through Rate        Maturity Date(1)
-------------- --------------- ----------------------- -------------------

MRI-AA          $704,353,551.91         Variable(2)        February 20, 2047
MRI-1A1             $944,410.00         Variable(2)        February 20, 2047
MRI-2A1           $4,132,870.00         Variable(2)        February 20, 2047
MRI-2A2             $585,120.00         Variable(2)        February 20, 2047
MRI-2A3             $508,980.00         Variable(2)        February 20, 2047
MRI-2A4             $430,030.00         Variable(2)        February 20, 2047
MRI-2A5             $194,170.00         Variable(2)         February 20, 2047
MRI-M1              $107,810.00         Variable(2)        February 20, 2047
MRI-M2               $43,120.00         Variable(2)        February 20, 2047
MRI-M3               $35,940.00         Variable(2)        February 20, 2047
MRI-M4                $35,940.00         Variable(2)        February 20, 2047
MRI-M5               $35,940.00         Variable(2)        February 20, 2047
MRI-M6               $35,940.00         Variable(2)        February 20, 2047
MRI-M7               $35,940.00         Variable(2)        February 20, 2047
MRI-M8               $35,940.00         Variable(2)        February 20, 2047
MRI-ZZ            $7,212,412.28         Variable(2)        February 20, 2047
MRI-IO              (3)                 Variable(2)        February 20, 2047
MRI-R                    $100.00         Variable(2)        February 20, 2047
</TABLE>

(1)   Solely   for   purposes   of   Section    1.860G-1(a)(4)(iii)   of   the   Treasury
     regulations,   the Distribution Date immediately following the maturity date
     for the Mortgage Loan with the latest   maturity date has been designated as
     the "latest   possible   maturity date" for each   Uncertificated   Middle-Tier
     Regular Interest.

(2)   Calculated in accordance with the definition of "Uncertificated Middle-Tier
     REMIC Pass-Through Rate" herein.

(3)   The Class MRI-IO Interest will have an Uncertificated Balance calculated in
     accordance with the definition of "Uncertificated Balance" herein.

     The foregoing   Lower-Tier REMIC and Middle-Tier REMIC structure is intended
to cause all the cash from the   Mortgage   Loans to flow   through the   Upper-Tier
REMIC as cash flow on an   Upper-Tier   Regular   Interest,   without   creating   any
shortfall,   actual or   potential   (other   than for   losses),   to any   Upper-Tier
Regular   Interest.   To the extent that the structure is believed to diverge from
such   intention,   the party   identifying   such ambiguity or drafting error shall
notify the other parties hereto, and the parties hereto shall attempt to resolve
such ambiguity or drafting error in accordance with Section 11.01 hereto.

<PAGE>

                                Upper-Tier REMIC

     As provided herein,   the Securities   Administrator will make an election to
treat the segregated pool of assets consisting of the Uncertificated Middle-Tier
Regular   Interests   as a   REMIC   for   federal   income   tax   purposes,   and   such
segregated   pool of assets will be   designated   as the   "Upper-Tier   REMIC." The
Class UR Interest will   represent the sole class of "residual   interests" in the
Upper-Tier REMIC for purposes of the REMIC Provisions.

     The following   table   irrevocably   sets forth (or describes) the Upper-Tier
Regular   Interest   designation,   the   initial   Uncertificated   Balance   and   the
Uncertificated   Upper-Tier REMIC   Pass-Through Rate for each Upper-Tier   Regular
Interest comprising the "regular interests" in the Upper-Tier REMIC for purposes
of the   REMIC   Provisions   and,   solely   for   purposes   of   satisfying   Treasury
Regulations Section 1.860G-1(a)(4)(iii), the "latest possible maturity date" for
each Upper-Tier Regular Interest.

<TABLE>
<S>      <C>     <C>     <C>     <C>     <C>     <C>

-------------- --------------- ----------------------- -------------------
                   Initial        Uncertificated Upper-   
                Uncertificated      Tier REMIC Pass-      Latest Possible
Designation         Balance            Through Rate        Maturity Date(1)
-------------- --------------- ----------------------- -------------------

  1-A-1           $94,441,000         Variable(2)          February 20, 2047
  2-A-1          $413,287,000         Variable(2)          February 20, 2047
  2-A-2           $58,512,000         Variable(2)          February 20, 2047
  2-A-3           $50,898,000         Variable(2)          February 20, 2047
  2-A-4           $43,003,000         Variable(2)          February 20, 2047
  2-A-5           $19,417,000         Variable(2)          February 20, 2047
   M-1            $10,781,000         Variable(2)          February 20, 2047
   M-2             $4,312,000         Variable(2)          February 20, 2047
   M-3             $3,594,000         Variable(2)          February 20, 2047
   M-4             $3,594,000         Variable(2)          February 20, 2047
   M-5             $3,594,000         Variable(2)           February 20, 2047
   M-6             $3,594,000         Variable(2)          February 20, 2047
   M-7             $3,594,000         Variable(2)          February 20, 2047
   M-8             $3,594,000         Variable(2)          February 20, 2047
   CE                 (3)                 (3)               February 20, 2047
  Swap-IO             (4)                 (4)               February 20, 2047

</TABLE>

(1)   Solely   for   purposes   of   Section    1.860G-1(a)(4)(iii)   of   the   Treasury
     regulations,   the Distribution Date immediately following the maturity date
     for the Mortgage Loan with the latest   maturity date has been designated as
     the "latest possible maturity date" for each Upper-Tier Regular Interest.

(2)   Interest will accrue on these Upper-Tier   Regular   Interests at a per annum
     rate   equal   to the   least   of (i)   the sum of   One-Month   LIBOR   plus   the
     Certificate Margin for the corresponding Class of Certificates,   (ii) other
     than with respect to the Class 2-A-3 Certificates,   10.500%,   and (iii) the
     Upper-Tier REMIC Net WAC Cap.

     On any   Distribution   Date on which the   Certificate   Interest Rate for the
     Corresponding   Class of Certificates   exceeds the Upper-Tier   REMIC Net WAC
     Cap, interest accruals based on such excess shall be treated as having been
     paid from the Cap Carryover   Reserve Account or the   Supplemental   Interest
     Trust,   as applicable.   On any   Distribution   Date on which the Certificate
     Interest Rate on a Class of   Certificates   is based on the Net WAC Cap, the
     excess of the amount of interest   that would have   accrued on such Class of
     Certificates if the Upper-Tier   REMIC Net WAC Cap were   substituted for the
     Net WAC Cap over the   interest   accruals   based on the Net WAC Cap shall be
     treated as having been paid by the   related   Class of   Certificates   to the
     Supplemental   Interest   Trust,   all pursuant to and as further   provided in
     Sections 5.11 and 5.12 herein.

<PAGE>

(3)   Solely for federal   income tax purposes,   the Class CE   Upper-Tier   Regular
     Interest will have an initial   Uncertificated   Balance equal to the Initial
     Overcollateralization Amount. The Class CE Upper-Tier Regular Interest will
     bear interest at its Pass-Through Rate on its Notional Amount.

(4)   Solely   for   federal   income tax   purposes,   the Class   Swap-IO   Upper-Tier
     Regular   Interest   will   not   have an   Uncertificated   Balance   but will be
     entitled to 100% of the amounts distributed on the Class MRI-IO Middle-Tier
     Regular Interest.

<PAGE>

                            SUMMARY OF CERTIFICATES

     The   following   table   sets   forth   characteristics   of   the   Certificates,
together with the minimum denominations and integral multiples in excess thereof
in which the Classes of Certificates shall be issuable:

<TABLE>
<S>      <C>     <C>     <C>     <C>     <C>     <C>

                                                                     Integral
                                     Certificate                      Multiples in
                   Initial Class       Interest        Minimum          Excess of
Classes          Certificate Balance     Rate         Denomination       Minimum

Class 1-A-1         $94,441,000           (1)           $1,000             $1
Class 2-A-1        $413,287,000           (1)           $1,000             $1
Class 2-A-2         $58,512,000           (1)           $1,000             $1
Class 2-A-3         $50,898,000           (2)           $1,000             $1
Class 2-A-4         $43,003,000            (1)           $1,000             $1
Class 2-A-5         $19,417,000           (1)           $1,000             $1
Class M-1           $10,781,000           (1)          $25,000             $1
Class M-2            $4,312,000           (1)          $25,000             $1
Class M-3            $3,594,000           (1)          $25,000             $1
Class M-4            $3,594,000           (1)          $25,000             $1
Class M-5            $3,594,000           (1)          $25,000             $1
Class M-6            $3,594,000           (1)          $25,000             $1
Class M-7            $3,594,000           (1)          $25,000             $1
Class M-8            $3,594,000           (1)          $25,000             $1
Class CE                    (3)           (3)              N/A              N/A
Class R                    $100           (4)              N/A             N/A
                                               
</TABLE>

(1)   The Certificate   Interest Rate for these   Certificates   will be a per annum
     rate   equal   to the   least   of (i)   the sum of   One-Month   LIBOR   plus   the
     applicable Certificate Margin (such sum, the "Pass-Through Rate"), (ii) the
     Net WAC Cap and (iii) 10.500%.

(2)   The Certificate   Interest Rate for these   Certificates   will be a per annum
     rate   equal   to the   lesser   of (i) the sum of   One-Month   LIBOR   plus   the
     applicable   Certificate Margin (such sum, the "Pass-Through Rate") and (ii)
     the Net WAC Cap.

(3)   Solely for federal income tax purposes, the Class CE Certificates will have
     an    initial    Class     Certificate     Balance    equal    to    the    Initial
     Overcollateralization Amount. The Class CE Certificates will be entitled to
     100% of the amount distributed on the Class CE Upper-Tier Regular Interest.

(4)   The Class R Certificate will not bear interest.

<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   meanings   specified   in this
Article:

     10-K Filing Deadline: As defined in Section 3.22(c).

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

     60+ Day Delinquent   Loan: For each   Distribution   Date,   each Mortgage Loan
(including   each Mortgage Loan in   foreclosure   and each Mortgage Loan for which
the Mortgagor has filed for   bankruptcy   after the Closing Date) with respect to
which   any   portion   of a   Monthly   Payment   is, as of the Due Date in the prior
calendar   month,   two months or more past due and each Mortgage Loan relating to
an REO Property.

     Accrued Certificate   Interest:   For any Distribution Date and each Class of
Certificates,   one month's   interest accrued during the related Interest Accrual
Period at the   applicable   Certificate   Interest   Rate on the   applicable   Class
Certificate   Balance   minus   such   Class'   Interest   Percentage   of   Relief   Act
Reductions related to any Mortgage Loan for such Distribution Date.

      Additional Disclosure Notification: The form of notification to be included
with any Additional   Form 10-D   Disclosure,   Additional   Form 10-K Disclosure or
Form 8-K Disclosure Information which is attached hereto as Exhibit S.

     Additional Form 10-D Disclosure: As defined in Section 3.22(b).

     Additional Form 10-K Disclosure: As defined in Section 3.22(c).

     Additional Servicer: A Subcontractor   engaged by the Master Servicer or the
Securities Administrator that is a "servicer" within the meaning of Item 1101 of
Regulation AB and meets any of the criteria in Item 1108(a)(2)(i)   through (iii)
of Regulation AB.

     Administrative   Fee Rate:   With respect to each   Mortgage   Loan,   an amount
equal   to the sum of (i)   the   related   Servicing   Fee   Rate,   (ii)   the   Master
Servicing Fee Rate and (iii) the related LPMI Premium Rate, if any.

     Administrative   Fees:   The sum of (a) the related   Servicing   Fee,   (b) the
Master   Servicing   Fee and (c) with respect to any   Mortgage   Loan covered by an
LPMI Policy, a fee based on the LPMI Premium Rate.

     Advance: A Periodic Advance or a Servicing Advance.

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

<PAGE>

     Applied   Realized   Loss   Amount:   Any of a Group 1   Applied   Realized   Loss
Amount, a Group 2 Applied   Realized Loss Amount or a Mezzanine   Applied Realized
Loss Amount.

     Appraised   Value:   With respect to any Mortgaged   Property,   either (i) the
lesser of (a) the appraised   value   determined   in an appraisal   obtained by the
originator   generally no more than four months prior to   origination   (or,   with
respect to newly   constructed   properties,   no more than twelve   months prior to
origination) of such Mortgage Loan or, in certain cases, an automated   valuation
model (if   applicable)   or tax   assessed   value and (b) the sales price for such
property,   except that, in the case of Mortgage Loans the proceeds of which were
used to refinance an existing   mortgage loan, the Appraised Value of the related
Mortgaged   Property is the appraised   value   thereof   determined in an appraisal
obtained at the time of refinancing or, in certain cases, an automated valuation
model   (if   applicable)   or tax   assessed   value,   or (ii) the   appraised   value
determined   in an   appraisal   made at the request of a Mortgagor   subsequent   to
origination in order to eliminate the   Mortgagor's   obligation to keep a Primary
Mortgage Insurance Policy in force.

     Assessment of Compliance: As defined in Section 3.21(a).

     Assignment of Mortgage: An individual assignment of the Mortgage, notice of
transfer or equivalent   instrument in recordable form, sufficient under the laws
of the jurisdiction   wherein the related   Mortgaged   Property is located to give
record notice of the sale of the Mortgage.

     Attestation Report: As defined in Section 3.21(b).

     Authenticating Agents: As defined in Section 9.10.

     Back-up Certification: As defined in Section 3.22(e).

     BAFC: Banc of America Funding Corporation, a Delaware corporation.

     BAMCC:   Banc of America   Mortgage   Capital   Corporation,   a North   Carolina
corporation.

     BANA:   Bank   of   America,    National    Association,    a   national    banking
association, or its successor in interest.

     BANA Servicing Agreement: The Servicing Agreement,   dated January 31, 2007,
by and between BAFC, as depositor, and BANA, as servicer.

     BBA: As defined in Section 5.09.

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

     BPP Mortgage Loan: Any Mortgage Loan which includes a Borrowers   Protection
Plan(R)   addendum to the related Mortgage Note whereby BANA agrees to cancel (i)
certain   payments of   principal   and   interest on such   Mortgage   Loan for up to
twelve months upon the disability or involuntary   unemployment   of the Mortgagor
or (ii)   the   outstanding   principal   balance   of the   Mortgage   Loan   upon   the
accidental   death of the   Mortgagor;   provided   that such   Borrowers   Protection
Plan(R) has not been terminated in accordance with its terms.

<PAGE>

     BPP Mortgage   Loan   Payment:   With respect to any BPP   Mortgage   Loan,   the
Monthly Covered Amount or Total Covered Amount, if any, payable by BANA pursuant
to Section 7(b) of the Mortgage Loan Purchase Agreement.

     Business   Day:   Any day other than (i) a Saturday or a Sunday or (ii) a day
on which banking   institutions in the State of North Carolina,   the State of New
York, the states in which the servicing offices of any Servicer are located, the
state or states in which the master servicing offices of the Master Servicer are
located   or the   state or states in which the   Corporate   Trust   Offices   of the
Trustee and the Securities   Administrator are located are required or authorized
by law or executive order to be closed.

     Buy-Down   Account:   The separate   Eligible   Account or Accounts created and
maintained by a Servicer as set forth in Section 3.08.

     Buy-Down   Agreement:   An agreement   governing the   application   of Buy-Down
Funds with respect to a Buy-Down Mortgage Loan.

     Buy-Down   Funds:   Money advanced by a builder,   seller or other   interested
party to reduce a   Mortgagor's   monthly   payment   during the initial   years of a
Buy-Down Mortgage Loan.

     Buy-Down Mortgage Loan: Any Mortgage Loan in respect of which,   pursuant to
a   Buy-Down   Agreement,   the   monthly   interest   payments   made   by the   related
Mortgagor   will be less than the   scheduled   monthly   interest   payments on such
Mortgage Loan, with the resulting difference in interest payments being provided
from related Buy-Down Funds.

     Cap Carryover Amount: If on any Distribution Date, the Accrued   Certificate
Interest for any Offered   Certificate is based on the Net WAC Cap, the excess of
(i) the amount of   interest   such Class   would have been   entitled to receive on
such   Distribution   Date based on the lesser of its Pass-Through   Rate or, other
than for the Class 2-A-3 Certificates,   10.500% over (ii) the amount of interest
such class received on such Distribution Date based on the Net WAC Cap, together
with the unpaid   portion of any such excess from prior   Distribution   Dates (and
interest accrued thereon at the lesser of   then-applicable   Pass-Through Rate on
such   Class or,   other   than for the Class   2-A-3   Certificates,   10.500%).   For
federal   income tax purposes,   each   application   of the Net WAC Cap shall be an
application of the Upper-Tier   REMIC Net WAC Cap for purposes of calculating the
Cap Carryover Amount.

      Cap Carryover Reserve Account:   The Eligible Account created and maintained
by the Securities   Administrator   pursuant to Section 3.09(i) in the name of the
Securities   Administrator,   on behalf of the   Trustee,   for the   benefit   of the
Holders of the Offered   Certificates and designated   "Wells Fargo Bank, N.A., as
Securities   Administrator   for U.S. Bank National   Association,   as Trustee,   in
trust for registered   holders of Banc of America   Funding   Corporation   Mortgage
Pass-Through   Certificates,   Series 2007-A." Funds in the Cap Carryover   Reserve
Account shall be held in trust for the Holders of the Offered   Certificates   for
the uses and purposes set forth in this   Agreement.   Funds in the Cap   Carryover
Reserve   Account shall be held   uninvested.   The Cap Carryover   Reserve   Account
shall not be an asset of any REMIC formed under this Agreement.

     Cap Provider: The Bank of New York.
<PAGE>

     Certificate:   Any of the   Banc   of   America   Funding   Corporation   Mortgage
Pass-Through   Certificates,   Series   2007-A   that are   issued   pursuant   to this
Agreement.

     Certificate   Account:   The Eligible   Account   created and maintained by the
Securities   Administrator   pursuant   to   Section   3.09(b)   in   the   name   of the
Securities   Administrator,   on behalf of the   Trustee,   for the   benefit   of the
Certificateholders   and   designated   "Wells   Fargo   Bank,   N.A.,   as   Securities
Administrator   for U.S.   Bank   National   Association,   as Trustee,   in trust for
registered holders of Banc of America Funding Corporation Mortgage   Pass-Through
Certificates, Series 2007-A." The Certificate Account shall be deemed to consist
of five   sub-accounts;   one for   each of the   Loan   Groups   (the   "Loan   Group 1
Sub-Account" and "Loan Group 2 Sub-Account"), and one for each of the Lower-Tier
Certificate   Sub-Account,    the   Middle-Tier   Certificate   Sub-Account   and   the
Upper-Tier   Certificate   Sub-Account.   Funds in the Certificate Account shall be
held in trust for the Holders of the   Certificates for the uses and purposes set
forth in this Agreement.

     Certificate   Balance:   With respect to any   Certificate   at any date (other
than a Class CE   Certificate),   the maximum   dollar amount of principal to which
the Holder   thereof is then entitled   hereunder,   such amount being equal to the
product of the Percentage Interest of such Certificate and the Class Certificate
Balance of the Class of Certificates of which such Certificate is a part.

     Certificate   Custodian:   Initially,   Wells Fargo Bank, N.A.; thereafter any
other   Certificate   Custodian   acceptable to the   Depository and selected by the
Securities Administrator.

     Certificate Interest Rate: With respect to each Class of Certificates,   the
per annum rate set forth or calculated   in the table under the caption   "Summary
of Certificates" in the Preliminary Statement.

     Certificate Margin: With respect to each Class of Offered Certificates, the
following percentages:

<TABLE>
<S>      <C>     <C>     <C>     <C>     <C>     <C>

                                                 Margin after the Optional
         Class                   Margin                Termination Date

      Class 1-A-1                0.160%                     0.320%
      Class 2-A-1                0.160%                     0.320%
      Class 2-A-2                0.210%                     0.420%
      Class 2-A-3                0.060%                     0.120%
      Class 2-A-4                0.160%                     0.320%
      Class 2-A-5                0.230%                     0.460%
       Class M-1                 0.290%                     0.435%
       Class M-2                 0.310%                     0.465%
       Class M-3                 0.340%                     0.510%
       Class M-4                 0.380%                      0.570%
       Class M-5                 0.420%                     0.630%
       Class M-6                 0.830%                     1.245%
       Class M-7                 1.250%                     1.875%
       Class M-8                 1.250%                      1.875%

</TABLE>

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

      Certificate Register: The register maintained pursuant to Section 6.02.

<PAGE>

     Certificate Registrar: The registrar appointed pursuant to Section 6.02.

     Certificateholder:   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,   the Master Servicer or any affiliate thereof shall be deemed not
to be   outstanding   and the   Percentage   Interest   and Voting   Rights   evidenced
thereby   shall not be taken into account in   determining   whether the   requisite
amount of Percentage   Interests or Voting Rights,   as the case may be, necessary
to   effect   any such   consent   has been   obtained,   unless   such   entity   is the
registered owner of the entire Class of Certificates,   provided that neither the
Securities   Administrator   nor the Trustee shall be responsible for knowing that
any   Certificate   is   registered in the name of an affiliate of the Depositor or
the Master Servicer unless one of its Responsible   Officers has actual knowledge
thereof.

     Certification Parties: As defined in Section 3.22(e).

     Certifying Person: As defined in Section 3.22(e).

     Class: As to the Certificates, the Class R, Class 1-A-1, Class 2-A-1, Class
2-A-2,   Class 2-A-3,   Class 2-A-4, Class 2-A-5, Class M-1, Class M-2, Class M-3,
Class M-4, Class M-5, Class M-6, Class M-7, Class M-8 and Class CE Certificates,
as the case may be. The Class Swap-IO   Interest shall also be considered a class
of REMIC regular interests.

     Class CE Certificates:   The Class CE Certificates,   which represent (i) the
corresponding   Upper-Tier Regular Interest for purposes of the REMIC Provisions,
(ii) the obligation to pay Cap Carryover Amounts,   Swap Termination Payments and
the Class IO   Distribution   Amount and (iii) the right to   receive   the Class IO
Distribution   Amount and amounts from the Cap   Carryover   Reserve   Account,   the
Derivative Account and the Interest Rate Cap Agreement B Account.

     Class CE Distributable   Amount:   With respect to any Distribution Date, the
sum of (i) the interest accrued on the Class CE Upper-Tier   Regular Interests at
their   Pass-Through   Rate   calculated on their   Notional   Amount less the amount
(without   duplication)   of   Cap   Carryover   Amounts   paid   pursuant   to   Section
5.02(c)(i)(G)   and any   Defaulted   Swap   Termination   Payments   paid pursuant to
Section 5.02(c)(i)(H),   (ii) up to any remaining   Overcollateralization   Release
Amounts and (iii) the amounts   remaining in the   Supplemental   Interest Trust in
respect of the   Derivative   Account after   distributions   in Section   5.02(d)(i)
through (ix) and in respect of the Interest   Rate Cap   Agreement B Account after
distributions in Section 5.02(e).

     Class CE Grantor Trust:   The grantor trust created pursuant to Section 5.13
consisting   of   any   interests   in   the   Cap   Carryover    Reserve    Account   and
Supplemental   Interest Trust   beneficially   owned by the holders of the Class CE
Certificates   and rights and   obligations   with   respect   thereto.   The Class CE
Grantor Trust shall not be an asset of any REMIC formed hereunder.

     Class Certificate Balance: With respect to any Class of Certificates (other
than the Class CE Certificates)   and any date of   determination,   and subject to
the last paragraph of Section 5.03(b),   the Initial Class Certificate Balance of
such Class (a) reduced by the sum of (i) all   amounts   actually   distributed   in
respect   of   principal   of such Class on all prior   Distribution   Dates and (ii)
Applied Realized Loss Amounts allocated thereto for previous   Distribution Dates
and (b)   increased   by any   Recoveries   allocated   to such   Class   for   previous
Distribution Dates.

<PAGE>

      With respect to the Class CE   Certificates   and any date of   determination,
and solely for federal   income tax   purposes,   the   excess,   if any, of the then
aggregate   Uncertificated   Balances of the Uncertificated   Middle-Tier Interests
over   the   aggregate   Class    Certificate    Balance   of   the   Certificates   then
outstanding.

     Class IO Distribution Amount: As defined in Section 5.11(e) hereof. For the
purposes of clarity,   the Class IO Distribution Amount for any Distribution Date
shall   equal the   amount   payable   to the   Supplemental   Interest   Trust on such
Distribution   Date   in   excess   of   the   amount   payable   on the   Class   Swap-IO
Upper-Tier   Regular Interest on such Distribution   Date, all as further provided
in Section 5.11(e) hereof.

     Class M-1 Principal   Distribution   Amount: As of any Distribution Date, the
excess of (x) the sum of (i) the   aggregate   Class   Certificate   Balance   of the
Senior   Certificates   (after   taking   into   account   the   payment   of the Senior
Principal   Distribution   Amount   on such   Distribution   Date) and (ii) the Class
Certificate   Balance   of the Class M-1   Certificates   immediately   prior to such
Distribution   Date over (y) the lesser of (a) the product of (i) 92.10% and (ii)
the aggregate Stated Principal   Balance of the Mortgage Loans as of the last day
of the   related   Collection   Period   and (b) the   amount by which the   aggregate
Stated Principal Balance of the Mortgage Loans as of the last day of the related
Collection Period exceeds the product of (i) 0.35% and (ii) the aggregate Stated
Principal Balance of the Mortgage Loans as of the Cut-off Date.

     Class M-2 Principal   Distribution   Amount: As of any Distribution Date, the
excess of (x) the sum of (i) the   aggregate   Class   Certificate   Balance   of the
Senior   Certificates   (after   taking   into   account   the   payment   of the Senior
Principal   Distribution   Amount   on such   Distribution   Date),   (ii)   the   Class
Certificate Balance of the Class M-1 Certificates (after taking into account the
payment   of the Class M-1   Principal   Distribution   Amount on such   Distribution
Date)   and (iii) the Class   Certificate   Balance   of the Class M-2   Certificates
immediately   prior to such   Distribution   Date   over (y) the   lesser   of (a) the
product of (i) 93.30% and (ii) the   aggregate   Stated   Principal   Balance of the
Mortgage Loans as of the last day of the related   Collection   Period and (b) the
amount by which the aggregate Stated Principal   Balance of the Mortgage Loans as
of the last day of the   related   Collection   Period   exceeds   the product of (i)
0.35% and (ii) the aggregate Stated   Principal   Balance of the Mortgage Loans as
of the Cut-off Date.

     Class M-3 Principal   Distribution   Amount: As of any Distribution Date, the
excess of (x) the sum of (i) the   aggregate   Class   Certificate   Balance   of the
Senior   Certificates   (after   taking   into   account   the   payment   of the Senior
Principal   Distribution   Amount   on such   Distribution   Date),   (ii)   the   Class
Certificate Balance of the Class M-1 Certificates (after taking into account the
payment   of the Class M-1   Principal   Distribution   Amount on such   Distribution
Date), (iii) the Class Certificate   Balance of the Class M-2 Certificates (after
taking into account the payment of the Class M-2 Principal   Distribution   Amount
on such Distribution   Date) and (iv) the Class Certificate   Balance of the Class
M-3 Certificates immediately prior to such Distribution Date over (y) the lesser
of (a) the product of (i) 94.30% and (ii) the aggregate Stated Principal Balance
of the Mortgage   Loans as of the last day of the related   Collection   Period and
(b) the amount by which the aggregate Stated   Principal   Balance of the Mortgage
Loans as of the last day of the related Collection Period exceeds the product of
(i) 0.35% and (ii) the aggregate Stated Principal   Balance of the Mortgage Loans
as of the Cut-off Date.

<PAGE>

     Class M-4 Principal   Distribution   Amount: As of any Distribution Date, the
excess of (x) the sum of (i) the   aggregate   Class   Certificate   Balance   of the
Senior   Certificates   (after   taking   into   account   the   payment   of the Senior
Principal   Distribution   Amount   on such   Distribution   Date),   (ii)   the   Class
Certificate Balance of the Class M-1 Certificates (after taking into account the
payment   of the Class M-1   Principal   Distribution   Amount on such   Distribution
Date), (iii) the Class Certificate   Balance of the Class M-2 Certificates (after
taking into account the payment of the Class M-2 Principal   Distribution   Amount
on such Distribution   Date), (iv) the Class Certificate Balance of the Class M-3
Certificates   (after   taking into account the payment of the Class M-3 Principal
Distribution   Amount on such   Distribution   Date) and (v) the Class   Certificate
Balance of the Class M-4   Certificates   immediately   prior to such   Distribution
Date over (y) the lesser of (a) the product of (i) 95.30% and (ii) the aggregate
Stated Principal Balance of the Mortgage Loans as of the last day of the related
Collection   Period and (b) the amount by which the   aggregate   Stated   Principal
Balance   of the   Mortgage   Loans as of the last   day of the   related   Collection
Period exceeds the product of (i) 0.35% and (ii) the aggregate   Stated Principal
Balance of the Mortgage Loans as of the Cut-off Date.

     Class M-5 Principal   Distribution   Amount: As of any Distribution Date, the
excess of (x) the sum of (i) the   aggregate   Class   Certificate   Balance   of the
Senior   Certificates   (after   taking   into   account   the   payment   of the Senior
Principal   Distribution   Amount   on such   Distribution   Date),   (ii)   the   Class
Certificate Balance of the Class M-1 Certificates (after taking into account the
payment   of the Class M-1   Principal   Distribution   Amount on such   Distribution
Date), (iii) the Class Certificate   Balance of the Class M-2 Certificates (after
taking into account the payment of the Class M-2 Principal   Distribution   Amount
on such Distribution   Date), (iv) the Class Certificate Balance of the Class M-3
Certificates   (after   taking into account the payment of the Class M-3 Principal
Distribution   Amount   on such   Distribution   Date),   (v) the   Class   Certificate
Balance of the Class M-4 Certificates   (after taking into account the payment of
the Class M-4 Principal   Distribution Amount on such Distribution Date) and (vi)
the Class Certificate Balance of the Class M-5 Certificates immediately prior to
such   Distribution Date over (y) the lesser of (a) the product of (i) 96.30% and
(ii) the aggregate Stated Principal Balance of the Mortgage Loans as of the last
day of the related   Collection   Period and (b) the amount by which the aggregate
Stated Principal Balance of the Mortgage Loans as of the last day of the related
Collection Period exceeds the product of (i) 0.35% and (ii) the aggregate Stated
Principal Balance of the Mortgage Loans as of the Cut-off Date.

     Class M-6 Principal   Distribution   Amount: As of any Distribution Date, the
excess of (x) the sum of (i) the   aggregate   Class   Certificate   Balance   of the
Senior   Certificates   (after   taking   into   account   the   payment   of the Senior
Principal   Distribution   Amount   on such   Distribution   Date),   (ii)   the   Class
Certificate Balance of the Class M-1 Certificates (after taking into account the
payment   of the Class M-1   Principal   Distribution   Amount on such   Distribution
Date), (iii) the Class Certificate   Balance of the Class M-2 Certificates (after
taking into account the payment of the Class M-2 Principal   Distribution   Amount
on such Distribution   Date), (iv) the Class Certificate Balance of the Class M-3
Certificates   (after   taking into account the payment of the Class M-3 Principal
Distribution   Amount   on such   Distribution   Date),   (v) the   Class   Certificate
Balance of the Class M-4 Certificates   (after taking into account the payment of
the Class M-4 Principal Distribution Amount on such Distribution Date), (vi) the
Class   Certificate   Balance of the Class M-5   Certificates   (after   taking   into
account   the   payment   of the Class M-5   Principal   Distribution   Amount on such
Distribution Date) and (vii) the Class Certificate Balance of the Class M-6
<PAGE>

     Certificates   immediately   prior   to such   Distribution   Date   over (y) the
lesser of (a) the product of (i) 97.30% and (ii) the aggregate   Stated Principal
Balance   of the   Mortgage   Loans as of the last   day of the   related   Collection
Period and (b) the amount by which the aggregate Stated Principal Balance of the
Mortgage Loans as of the last day of the related   Collection   Period exceeds the
product   of (i) 0.35% and (ii) the   aggregate   Stated   Principal   Balance of the
Mortgage Loans as of the Cut-off Date.

     Class M-7 Principal   Distribution   Amount: As of any Distribution Date, the
excess of (x) the sum of (i) the   aggregate   Class   Certificate   Balance   of the
Senior   Certificates   (after   taking   into   account   the   payment   of the Senior
Principal   Distribution   Amount   on such   Distribution   Date),   (ii)   the   Class
Certificate Balance of the Class M-1 Certificates (after taking into account the
payment   of the Class M-1   Principal   Distribution   Amount on such   Distribution
Date), (iii) the Class Certificate   Balance of the Class M-2 Certificates (after
taking into account the payment of the Class M-2 Principal   Distribution   Amount
on such Distribution   Date), (iv) the Class Certificate Balance of the Class M-3
Certificates   (after   taking into account the payment of the Class M-3 Principal
Distribution   Amount   on such   Distribution   Date),   (v) the   Class   Certificate
Balance of the Class M-4 Certificates   (after taking into account the payment of
the Class M-4 Principal Distribution Amount on such Distribution Date), (vi) the
Class   Certificate   Balance of the Class M-5   Certificates   (after   taking   into
account   the   payment   of the Class M-5   Principal   Distribution   Amount on such
Distribution   Date),   (vii)   the   Class   Certificate   Balance   of the   Class M-6
Certificates   (after   taking into account the payment of the Class M-6 Principal
Distribution   Amount on such Distribution Date) and (viii) the Class Certificate
Balance of the Class M-7   Certificates   immediately   prior to such   Distribution
Date over (y) the lesser of (a) the product of (i) 98.30% and (ii) the aggregate
Stated Principal Balance of the Mortgage Loans as of the last day of the related
Collection   Period and (b) the amount by which the   aggregate   Stated   Principal
Balance   of the   Mortgage   Loans as of the last   day of the   related   Collection
Period exceeds the product of (i) 0.35% and (ii) the aggregate   Stated Principal
Balance of the Mortgage Loans as of the Cut-off Date.

     Class M-8 Principal   Distribution   Amount: As of any Distribution Date, the
excess of (x) the sum of (i) the   aggregate   Class   Certificate   Balance   of the
Senior   Certificates   (after   taking   into   account   the   payment   of the Senior
Principal   Distribution   Amount   on such   Distribution   Date),   (ii)   the   Class
Certificate Balance of the Class M-1 Certificates (after taking into account the
payment   of the Class M-1   Principal   Distribution   Amount on such   Distribution
Date), (iii) the Class Certificate   Balance of the Class M-2 Certificates (after
taking into account the payment of the Class M-2 Principal   Distribution   Amount
on such Distribution   Date), (iv) the Class Certificate Balance of the Class M-3
Certificates   (after   taking into account the payment of the Class M-3 Principal
Distribution   Amount   on such   Distribution   Date),   (v) the   Class   Certificate
Balance of the Class M-4 Certificates   (after taking into account the payment of
the Class M-4 Principal Distribution Amount on such Distribution Date), (vi) the
Class   Certificate   Balance of the Class M-5   Certificates   (after   taking   into
account   the   payment   of the Class M-5   Principal   Distribution   Amount on such
Distribution   Date),   (vii)   the   Class   Certificate   Balance   of the   Class M-6
Certificates   (after   taking into account the payment of the Class M-6 Principal
Distribution   Amount on such   Distribution   Date),   (viii) the Class Certificate
Balance of the Class M-7 Certificates   (after taking into account the payment of
the Class M-7 Principal   Distribution Amount on such Distribution Date) and (ix)
the Class Certificate Balance of the Class M-8 Certificates immediately prior to
such Distribution Date over (y) the lesser of (a) the product of (i) 99.30% and
<PAGE>

(ii) the aggregate Stated Principal Balance of the Mortgage Loans as of the last
day of the related   Collection   Period and (b) the amount by which the aggregate
Stated Principal Balance of the Mortgage Loans as of the last day of the related
Collection Period exceeds the product of (i) 0.35% and (ii) the aggregate Stated
Principal Balance of the Mortgage Loans as of the Cut-off Date.

     Class   R   Certificate:   The   Class   R   Certificate,   which   represents   the
ownership   of the   Class UR   Interest,   the Class MR   Interest   and the Class LR
Interest.

     Class Swap-IO   Upper-Tier   Regular   Interest:   An   uncertificated   interest
representing   the right to   distributions   as set forth herein and evidencing an
Upper-Tier Regular Interest for purposes of the REMIC Provisions.

     Closing Date: January 31, 2007.

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

     Collection   Period:   With respect to any Distribution Date, the period from
the   second   day of the   calendar   month   preceding   the   month   in   which   such
Distribution   Date   occurs   through   the first   day of the   month in which   such
Distribution Date occurs.

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

     Compensating Interest:   With respect to any Distribution Date and Servicer,
an amount equal to the lesser of (a) the aggregate Servicing Fee payable to such
Servicer for the Mortgage   Loans   serviced by such Servicer with respect to such
Distribution Date and (b) the aggregate of the Prepayment Interest Shortfalls on
the   Mortgage   Loans    serviced   by   such   Servicer    resulting   from   Principal
Prepayments   on such   Mortgage   Loans   during   the   related   Prepayment   Period;
provided,   however,   Compensating Interest payable for any month by BANA will be
limited to one-twelfth of 0.2500% of the aggregate Stated   Principal   Balance of
the Mortgage Loans serviced by BANA,   calculated as of the Due Date of the month
preceding the month of such Distribution Date.

     Compliance Statement: As defined in Section 3.20.

     Cooperative:   A   private,   cooperative   housing   corporation   which owns or
leases land and all or part of a building or   buildings,   including   apartments,
spaces used for commercial   purposes and common areas therein and whose board of
directors authorizes, among other things, the sale of Cooperative Stock.

     Cooperative Apartment:   A dwelling unit in a multi-dwelling   building owned
or leased by a Cooperative,   which unit the Mortgagor has an exclusive   right to
occupy pursuant to the terms of a proprietary lease or occupancy agreement.

     Cooperative   Lease:   With respect to a Cooperative   Loan,   the   proprietary
lease or occupancy agreement with respect to the Cooperative   Apartment occupied
by the Mortgagor and relating to the related   Cooperative   Stock, which lease or
agreement   confers an exclusive right to the holder of such Cooperative Stock to
occupy such apartment.

<PAGE>

     Cooperative   Loans:   Any   of   the   Mortgage   Loans   made   in   respect   of a
Cooperative   Apartment,   evidenced   by a   Mortgage   Note   and   secured   by (i) a
Security   Agreement,   (ii) the related   Cooperative Stock Certificate,   (iii) an
assignment or mortgage of the Cooperative   Lease, (iv) financing   statements and
(v) a stock   power (or other   similar   instrument),   and   ancillary   thereto,   a
Recognition   Agreement,   each of which was transferred and assigned to the Trust
pursuant to Section 2.01.

     Cooperative    Stock:   With   respect   to   a   Cooperative   Loan,   the   single
outstanding class of stock,   partnership   interest or other ownership instrument
in the related   Cooperative.   Cooperative Stock   Certificate:   With respect to a
Cooperative   Loan,   the stock   certificate   or other   instrument   evidencing the
related Cooperative Stock.

     Corporate   Trust   Office:   With respect to the   Trustee,   the office of the
Trustee, which office at the date of the execution of this instrument is located
at 209 South LaSalle Street,   Suite 300,   Chicago,   Illinois   60604,   Attention:
Corporate Trust Services,   BAFC,   Series 2007-A, or at such other address as the
Trustee may designate from time to time by notice to the Certificateholders, the
Depositor, the Securities Administrator and the Master Servicer. With respect to
the   Securities   Administrator,   the   principal   corporate   trust   office of the
Securities   Administrator   at which at any particular   time its corporate   trust
business with respect to this   Agreement is conducted,   which office at the date
of the   execution   of this   instrument   is located at 9062 Old   Annapolis   Road,
Columbia,   Maryland   21045-1951,   Attention:   Corporate   Trust   Services   - BAFC
2007-A,   and for   certificate   transfer   purposes is located at Sixth Street and
Marquette   Avenue,   Minneapolis,   Minnesota   55479,   Attention:   Corporate Trust
Services - BAFC 2007-A, or at such other address as the Securities Administrator
may   designate   from   time to   time by   notice   to the   Certificateholders,   the
Depositor, the Trustee and the Master Servicer.

     Corresponding Class or Classes: The Class of interests in one REMIC created
under this Agreement that corresponds to the Class of interests in another REMIC
or to a Class of Certificates in the manner set out below:

<TABLE>
<S>      <C>     <C>     <C>     <C>     <C>     <C>

------------------------- ------------------------ --------------------------
  Uncertificated Middle-    Corresponding Upper-       Corresponding Class of
  Tier Regular Interest     Tier Regular Interest          Certificates
------------------------- ------------------------ --------------------------

      MRI-R                        N/A                  Class R Certificate
     MRI-1A1                   Class 1-A-1            Class 1-A-1 Certificates
     MRI-2A1                   Class 2-A-1            Class 2-A-1 Certificates
     MRI-2A2                   Class 2-A-2            Class 2-A-2 Certificates
     MRI-2A3                   Class 2-A-3            Class 2-A-3 Certificates
     MRI-2A4                    Class 2-A-4            Class 2-A-4 Certificates
     MRI-2A5                   Class 2-A-5            Class 2-A-5 Certificates
      MRI-M1                    Class M-1              Class M-1 Certificates
      MRI-M2                    Class M-2               Class M-2 Certificates
      MRI-M3                    Class M-3              Class M-3 Certificates
      MRI-M4                    Class M-4              Class M-4 Certificates
      MRI-M5                    Class M-5              Class M-5 Certificates
      MRI-M6                    Class M-6              Class M-6 Certificates

<PAGE>

------------------------- ------------------------ --------------------------
  Uncertificated Middle-    Corresponding Upper-       Corresponding Class of
  Tier Regular Interest     Tier Regular Interest          Certificates
------------------------- ------------------------ --------------------------

      MRI-M7                    Class M-7              Class M-7 Certificates
      MRI-M8                    Class M-8               Class M-8 Certificates
       N/A                       Class CE              Class CE Certificates
      MRI-IO                 Swap IO Interest                   N/A

</TABLE>

     CWHLS:   Countrywide   Home Loans   Servicing   LP, in its capacity as Servicer
under the Countrywide Home Loans Servicing Agreement.

     Countrywide Home Loans Servicing Agreement:   Collectively, (i) that certain
Master   Mortgage   Loan Purchase and   Servicing   Agreement,   dated as of April 1,
2003, by and between BANA (as successor in interest to BAMCC and the CWHLS, (ii)
that   certain   Amendment   No. 1, dated as of July 1, 2003,   by and among   BAMCC,
CWHLS and BANA,   (iii) that   certain   Amendment   No. 2, dated as of September 1,
2004, by and among BAMCC,   CWHLS and BANA, (iv) that certain Amendment Reg AB to
the Master   Mortgage Loan Purchase and Servicing   Agreement (the   "Amendment Reg
AB"),   dated as of January   1,   2006,   by and   between   the CWHLS and BANA,   (v)
certain Purchase Confirmations   (BA2006-0137 and BA2006-0139),   each dated March
30,   2006,   by and   between   the   CWHLS and BANA,   (vi)   that   certain   Purchase
Confirmation,   dated   December 29,   2006,   by and between the CWHLS and BANA and
(vii) that certain Assignment, Assumption and Recognition Agreement, dated as of
January 31, 2007, by and among CWHLS, BANA, the Depositor and the Trustee.

     Custodian: Initially, the Trustee and thereafter any custodian appointed by
the Trustee   pursuant   to Section   9.12.   A Custodian   may (but need not) be the
Trustee or any Person   directly or   indirectly   controlling   or controlled by or
under   common   control   of   either of them.   None of the   Master   Servicer,   any
Servicer or the Depositor,   or any Person directly or indirectly   controlling or
controlled   by or under   common   control   with any such Person may be   appointed
Custodian.

     Customary   Servicing    Procedures:    With   respect   to   (i)   any   Servicer,
procedures (including collection procedures) that a Servicer customarily employs
and exercises in servicing and administering   mortgage loans for its own account
and which are in   accordance   with   accepted   mortgage   servicing   practices   of
prudent lending   institutions   servicing   mortgage loans of the same type as the
Mortgage Loans in the   jurisdictions in which the related   Mortgaged   Properties
are located and (ii) the Master Servicer, those master servicing procedures that
constitute   customary and usual   standards of practice of prudent   mortgage loan
master servicers.

     Cut-off Date: January 1, 2007.

     Cut-off Date   Principal   Balance:   The   aggregate   of the Stated   Principal
Balances of the   Mortgage   Loans in the   Mortgage   Pool as of the Cut-off   Date,
which is $718,728,214.19.

     Debt Service Reduction: As to any Mortgage Loan and any Determination Date,
the excess of (i) the   Monthly   Payment   due on the   related   Due Date under the
terms of such   Mortgage   Loan over (ii) the   amount of the   monthly   payment   of
principal   and/or interest   required to be paid with respect to such Due Date by
<PAGE>

the Mortgagor as established by a court of competent   jurisdiction   (pursuant to
an order which has become final and   nonappealable)   as a result of a proceeding
initiated by or against the related   Mortgagor   under the   Bankruptcy   Code,   as
amended   from time to time (11   U.S.C.);   provided   that no such excess shall be
considered a Debt Service Reduction so long as (a) the Servicer of such Mortgage
Loan   is   pursuing   an   appeal   of the   court   order   giving   rise   to any   such
modification   and (b)(1) such   Mortgage   Loan is not in default   with respect to
payment due thereunder in accordance   with the terms of such Mortgage Loan as in
effect on the Cut-off   Date or (2) Monthly   Payments   are being   advanced by the
applicable   Servicer,   the Master   Servicer or the Trustee,   as   applicable,   in
accordance   with the terms of such   Mortgage   Loan as in   effect on the   Cut-off
Date.

     Defaulted Swap Termination   Payment:   Any Swap Termination Payment required
to be paid by the Supplemental   Interest Trust to the Swap Provider   pursuant to
the Interest Rate Swap   Agreement as a result of an Event of Default (as defined
in the Interest Rate Swap   Agreement) with respect to which the Swap Provider is
the defaulting party or a Termination   Event (including a Downgrade   Termination
Event) under the Interest Rate Swap   Agreement   (other than   Illegality or a Tax
Event that is not a Tax Event Upon Merger (each as defined in the Interest   Rate
Swap   Agreement))   with respect to which the Swap   Provider is the sole Affected
Party (as defined in the Interest Rate Swap Agreement).

     Defective   Mortgage   Loan: Any Mortgage Loan which is required to be cured,
repurchased or substituted for pursuant to Sections 2.02 or 2.04.

     Deficient   Valuation:   As to any Mortgage Loan and any Determination   Date,
the excess of (i) the then   outstanding   indebtedness   under such   Mortgage Loan
over (ii) the secured   valuation   thereof   established   by a court of   competent
jurisdiction   (pursuant to an order which has become final and nonappealable) as
a result of a proceeding initiated by or against the related Mortgagor under the
Bankruptcy   Code,   as amended from time to time (11   U.S.C.),   pursuant to which
such Mortgagor   retained such Mortgaged   Property;   provided that no such excess
shall be considered a Deficient Valuation so long as (a) the applicable Servicer
is pursuing an appeal of the court   order   giving rise to any such   modification
and (b)(1) such   Mortgage   Loan is not in default   with   respect to payments due
thereunder   in   accordance   with the terms of such Mortgage Loan as in effect on
the Cut-off Date or (2) Monthly   Payments are being   advanced by the   applicable
Servicer, the Master Servicer or the Trustee, as applicable,   in accordance with
the terms of such Mortgage Loan as in effect on the Cut-off Date.

     Definitive Certificates: As defined in Section 6.02(c)(iii).

     Delinquent: Any Mortgage Loan with respect to which the Monthly Payment due
on a Due Date is not made by the close of   business   on the next   scheduled   Due
Date for such Mortgage Loan.

     Denomination: The amount, if any, specified on the face of each Certificate
representing   the   principal   portion of the Initial Class   Certificate   Balance
evidenced by such Certificate.

     Depositor: Banc of America Funding Corporation, a Delaware corporation,   or
its successor in interest, as depositor of the Trust Estate.
<PAGE>

     Depository:   The Depository   Trust Company,   the nominee of which is Cede &
Co., as the registered Holder of the Book-Entry

     Certificates   or any successor   thereto   appointed in accordance   with this
Agreement.   The   Depository   shall at all times be a "clearing   corporation"   as
defined in Section   8-102(3) 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 Account: The Eligible Account or Accounts created and maintained
pursuant to Section 5.11.   The   Derivative   Account shall not be an asset of any
REMIC formed under this Agreement.

     Determination   Date:   With   respect to any   Distribution   Date and for each
Servicer, as defined in the applicable Servicing Agreement.

     Distribution   Date:   The 20th day of each month   beginning in February 2007
(or, if such day is not a Business Day, the next Business Day).

     Document Transfer Event: The 60th day following the day on which either (i)
Wells Fargo is no longer the Servicer of any of the Mortgage Loans   purchased by
the Sponsor from Wells Fargo Bank, N.A. or (ii) the senior,   unsecured long-term
debt rating of Wells Fargo & Company is less than "BBB-" by Fitch.

     Downgrade Termination Event: An event whereby (x) the Swap Provider (or its
guarantor)   ceases to have short term unsecured and/or long term debt ratings at
least equal to the levels specified in the Interest Rate Swap Agreement, and (y)
at least one of the   following   events   has not   occurred   (except to the extent
otherwise approved by the Rating Agencies): (i) within the time period specified
in the Interest Rate Swap   Agreement   with respect to such   downgrade,   the Swap
Provider shall transfer the Interest Rate Swap Agreement,   in whole,   but not in
part, to a substitute swap provider that satisfied the requirements set forth in
the Interest   Rate Swap   Agreement,   subject to the   satisfaction   of the rating
agency   condition or (ii) within the time   periods and   otherwise as required by
the Interest Rate Swap   Agreement,   the Swap   Provider   shall obtain a qualified
guaranty of its   obligations   from an eligible   third party or (iii)   within the
time period   specified in the Interest Rate Swap   Agreement with respect to such
downgrade,   the Swap Provider   shall   collateralize   its exposure to the Issuing
Entity   pursuant to the ISDA Credit Support Annex entered into as of January 31,
2007, between the Supplemental Interest Trust and the Swap Provider.

     Due Date: As to any Distribution Date and each Mortgage Loan, the first day
in the calendar month of such Distribution Date.

     EDGAR: The Commission's Electronic Data Gathering 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
<PAGE>

short-term   ratings of each   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,   the   Securities   Administrator   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 the trust   department of a federal or state chartered
depository   institution   or trust   company   (including   the Trustee,   the Master
Servicer and the Securities Administrator),   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,   the Master   Servicer or the   Securities
Administrator.

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

     ERISA Restricted Certificates: Any of the Class R and Class CE Certificates
and any Certificate that no longer meets the applicable   rating   requirements of
an Underwriter's Exemption.

     Escrow Account: As defined in Section 3.08.

     Escrow   Payments:   The amounts   constituting   taxes,   assessments,   Primary
Mortgage Insurance Policy premiums, fire and hazard insurance premiums and other
payments as may be required to be escrowed by the   Mortgagor   with the mortgagee
pursuant to the terms of any Mortgage Note or Mortgage.

     Events of Default: As defined in Section 8.01.

     Excess Proceeds:   With respect to any Liquidated Mortgage Loan, the amount,
if any, by which any Liquidation   Proceeds of such Mortgage Loan received in the
calendar   month in which such Mortgage Loan became a Liquidated   Mortgage   Loan,
net   of   any   amounts   previously   reimbursed   to   the   applicable   Servicer   as
Nonrecoverable Advance(s) with respect to such Mortgage Loan pursuant to Section
3.11(a)(iv),   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   Interest
Rate   from the Due   Date as to   which   interest   was   last   paid or for   which a
Periodic   Advance was made (and not reimbursed) 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.

     Extra   Principal   Distribution   Amount:   As of any   Distribution   Date, the
lesser of (x) the Monthly Excess Interest Amount for such   Distribution Date and
(y) the Overcollateralization Deficiency for such Distribution Date.

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

     Final    Distribution   Date:   The   Distribution   Date   on   which   the   final
distribution in respect of some or all of the Certificates will be made pursuant
to Section 10.01.

     Financial Market Service: Bloomberg LP, Intex Solutions, Inc. and any other
financial   information provider designated by the Depositor by written notice to
the Securities Administrator.

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

     Fitch: Fitch Ratings, or any successor thereto.

     Fixed Payer Rate: The fixed rate payable pursuant to the Interest Rate Swap
Agreement for each   Distribution   Date up to and including the Distribution Date
in January 2012, which is 5.197%.

     Form 8-K Disclosure Information: As defined in Section 3.22(d).

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

     Group: Any of Group 1 or Group 2.

     Group 1: The Group 1 Certificates.

     Group 1 Certificates: The Class 1-A-1 Certificates.

     Group 1 Mortgage Loan: Each Mortgage Loan listed on Exhibit D-1 hereto.

     Group 1 Applied   Realized   Loss Amount:   With respect to each   Distribution
Date after the aggregate Class Certificate Balance of the Mezzanine Certificates
has been reduced to zero and the Group 1   Certificates,   the excess,   if any, of
the Class   Certificate   Balance of the Group 1   Certificates   (after taking into
account   the   distribution   of   the   Principal    Distribution    Amount   on   such
Distribution Date and any increase in Class   Certificate   Balance as a result of
Recoveries)   over (b) the   aggregate   Stated   Principal   Balance   of the Group 1
Mortgage Loans as of last day of the related Collection Period.

     Group 1 Senior   Principal   Allocation   Percentage:   As of any   Distribution
Date, the percentage equivalent of a fraction, the numerator of which is (x) the
Principal   Remittance   Amount   allocable to the Group 1 Mortgage   Loans for such
Distribution Date, and the denominator of which is (y) the Principal   Remittance
Amount for such Distribution Date.

     Group 1 Senior Principal   Distribution Amount: As of any Distribution Date,
the product of (x) the Group 1 Senior   Principal   Allocation   Percentage and (y)
the Senior Principal Distribution Amount.
<PAGE>

     Group 2: The Group 2 Certificates.

     Group 2 Applied   Realized   Loss Amount:   With respect to each   Distribution
Date after the aggregate Class Certificate Balance of the Mezzanine Certificates
has been reduced to zero and any Class of Group 2   Certificates,   the product of
(i) the excess,   if any, of (a) the aggregate Class   Certificate   Balance of the
Group   2   Certificates   (after   taking   into   account   the   distribution   of the
Principal   Distribution Amount on such Distribution Date and any increase in any
Class   Certificate   Balance as a result of   Recoveries)   over (b) the   aggregate
Stated   Principal   Balance of the Group 2   Mortgage   Loans as of last day of the
related   Collection   Period and (ii) a fraction,   the   numerator of which is the
Class   Certificate   Balance   of   such   Class   of   Group 2   Certificates   and the
denominator of which is the aggregate Class   Certificate   Balance of the Group 2
Certificates.

     Group 2   Certificates:   The Class 2-A-1,   Class 2-A-2,   Class 2-A-3,   Class
2-A-4 and Class 2-A-5 Certificates.

     Group 2 Mortgage Loan: Each Mortgage Loan listed on Exhibit D-2 hereto.

     Group 2 Senior   Principal   Allocation   Percentage:   As of any   Distribution
Date, the percentage equivalent of a fraction, the numerator of which is (x) the
Principal   Remittance   Amount   allocable to the Group 2 Mortgage   Loans for such
Distribution Date, and the denominator of which is (y) the Principal   Remittance
Amount for such Distribution Date.

     Group 2 Senior Principal   Distribution Amount: As of any Distribution Date,
the product of (x) the Group 2 Senior   Principal   Allocation   Percentage and (y)
the Senior Principal Distribution Amount.

     Holder: A Certificateholder.

     Indenture:   An indenture   relating to the   issuance of net interest   margin
notes   secured   entirely   or in   part   by   all or a   portion   of   the   Class   CE
Certificates, which may or may not be guaranteed by the NIMS Insurer.

     Independent:   When used with respect to any   specified   Person means such a
Person   who   (i) is in fact   independent   of the   Depositor,   the   Trustee,   the
Securities   Administrator,   the Master Servicer and the Servicers, (ii) does not
have any direct financial   interest or any material indirect   financial interest
in the Depositor, the Trustee, the Securities Administrator, the Master Servicer
or the   Servicers or in an affiliate of any of them,   and (iii) is not connected
with the   Depositor,   the   Trustee,   the   Securities   Administrator,   the Master
Servicer   or the   Servicers   as an   officer,   employee,   promoter,   underwriter,
trustee,   partner,   director or person performing similar   functions.   When used
with   respect   to any   accountants,   a Person   who is   "independent"   within the
meaning of Rule 2-01(B) of the Commission's Regulation S-X.

     Index: As to any Mortgage Loan and Rate Adjustment Date, the One-Year LIBOR
Index, the Six-Month LIBOR Index or the One-Year CMT Index. The Index applicable
to each Mortgage Loan will be indicated on the related Mortgage Loan Schedule.

     Initial Class Certificate   Balance: As to each Class of Certificates (other
than the Class CE Certificates),   the Class Certificate Balance set forth in the
Preliminary Statement.
<PAGE>

     Initial Overcollateralization Amount: $2,513,114.19.

     Insurance   Policy:   With respect to any Mortgage Loan included in the Trust
Estate,   any Primary   Mortgage   Insurance   Policy or any other insurance   policy
(including   any   policy   covering   any   Mortgage   Loan   or   Mortgaged   Property,
including without   limitation,   any hazard insurance policy required pursuant to
Section   3.12,   any title   insurance   policy   described   in Section 2.01 and any
Federal   Housing   Administration   insurance   policies and Department of Veterans
Affairs insurance   policies),   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.

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

     Interest   Accrual   Period:   As to any   Distribution   Date and each Class of
interest-bearing   Certificates,   the period from and including the   Distribution
Date in the   prior   month   (or the   Closing   Date,   in the   case of the   initial
Distribution Date) to but not including the then current Distribution Date.

     Interest Carryforward Amount: For any Class of Certificates (other than the
Class CE Certificates) and any Distribution   Date, the sum of (a) the excess, if
any, of the Accrued   Certificate   Interest for such   Distribution   Date over the
amount in   respect   of   interest   actually   distributed   on such   Class for such
Distribution   Date, (b) any remaining unpaid Interest   Carryforward   Amount from
prior    Distribution    Dates   and   (c)   interest   on   such   remaining    Interest
Carryforward   Amount   referred   to in clause (b) at the   applicable   Certificate
Interest Rate for the related Interest Accrual Period.

     Interest Percentage:   With respect to any Class of Offered Certificates and
any Distribution   Date, the ratio (expressed as a decimal carried to six places)
of the   Accrued   Certificate   Interest   for such Class to the sum of the Accrued
Certificate Interest for all Classes of Offered Certificates,   in each case with
respect to such Distribution Date, without regard to Relief Act Reductions.

     Interest Rate   Agreements:   The Interest Rate Cap Agreement A, the Interest
Rate Cap Agreement B and the Interest Rate Swap Agreement.

     Interest   Rate Cap   Agreements:   The Interest   Rate Cap Agreement A and the
Interest Rate Cap Agreement B.

     Interest Rate Cap Agreement A: Interest Rate Cap Agreement A, dated January
31, 2007, between the Cap Provider and the Supplemental   Interest Trust Trustee,
a copy of which is attached hereto as Exhibit V.

<PAGE>

     Interest Rate Cap Agreement B: Interest Rate Cap Agreement B, dated January
31, 2007, between the Cap Provider and the Supplemental   Interest Trust Trustee,
a copy of which is attached hereto as Exhibit W.

     Interest   Rate Cap   Agreement B Account:   The Eligible   Account or Accounts
created and maintained pursuant to Section 5.11. The Interest Rate Cap Agreement
B Account shall not be an asset of any REMIC formed under this Agreement.

     Interest    Rate    Swap    Agreement:    The   1992    ISDA    Master    Agreement
(Multicurrency-Cross   Border),   dated as of January 31, 2007   (together with the
schedule   thereto,   the "Master   Agreement"),   between the Swap Provider and the
Supplemental Interest Trust Trustee, and a confirmation and credit support annex
of the same date,   which supplement and form part of the Master   Agreement,   the
form of which has been   attached   hereto as   Exhibit U. The   Interest   Rate Swap
Agreement shall not be an asset of any REMIC formed under this Agreement.

     Interest Remittance Amount: As of any Distribution Date and any Loan Group,
(A) the sum, without duplication, of (i) all interest collected or advanced with
respect to the   related   Collection   Period on the   Mortgage   Loans in such Loan
Group received by the Servicers on or prior to the   Determination   Date for such
Distribution Date (less the Administrative Fees for such Mortgage Loans, certain
amounts   available for   reimbursement   of Advances with respect to such Mortgage
Loans and certain other reimbursable   expenses and indemnities   pursuant to this
Agreement and the Servicing Agreements),   (ii) all Compensating Interest paid by
the Servicers for such   Distribution   Date with respect to the Mortgage Loans in
such Loan   Group,   (iii) the   portion   of any   payment   in   connection   with any
Principal   Prepayment,    Substitution    Adjustment   Amount,    Repurchase   Price,
Insurance Proceeds or Liquidation   Proceeds relating to interest with respect to
the Mortgage   Loans in such Loan Group   received   during the related   Prepayment
Period,   (iv) any   Reimbursement   Amounts   received with respect to the Mortgage
Loans in such Loan Group   during the   related   Prepayment   Period and (v) on the
Distribution   Date on which the   Mortgage   Loans and   related REO   Property   are
purchased in accordance with Section 10.01 hereof,   that portion of the purchase
price in respect of interest   allocable to such Loan Group less (B) (i) for Loan
Group 1, the product of (a) any amounts payable to the Swap Provider   (including
any Net Swap Payment and any Swap Termination Payment owed to the Swap Provider,
other   than a   Defaulted   Swap   Termination   Payment)   and (b) a   fraction,   the
numerator   of which is the   aggregate   Stated   Principal   Balance of the Group 1
Mortgage   Loans as of the first day of the related   Collection   Period,   and the
denominator   of which is the aggregate of the Stated   Principal   Balances of the
Group 1 and Group 2 Mortgage Loans as of the first day of the related Collection
Period; and (ii) for Loan Group 2, the product of (a) any amounts payable to the
Swap Provider   (including any Net Swap Payment and any Swap Termination   Payment
owed to the Swap Provider,   other than a Defaulted Swap Termination Payment) and
(b) a fraction, the numerator of which is the aggregate Stated Principal Balance
of the Group 2   Mortgage   Loans as of the first   day of the   related   Collection
Period,   and the   denominator of which is the aggregate of the Stated   Principal
Balances   of the Group 1 and Group 2   Mortgage   Loans as of the first day of the
related Collection Period.

     LIBOR Business Day: Any day on which banks in London,   England and New York
City are open and conducting transactions in foreign currency and exchange.
<PAGE>

     LIBOR   Determination   Date: With respect to the Offered   Certificates,   for
each Distribution Date beginning with the second   Distribution   Date, the second
LIBOR Business Day prior to the immediately preceding Distribution Date.

     Liquidated   Mortgage   Loan:   With   respect   to   any   Distribution   Date,   a
defaulted   Mortgage Loan (including any REO Property) that was liquidated in the
related Prepayment Period and as to which the applicable   Servicer has certified
(in accordance with the applicable Servicing Agreement) that it has received all
proceeds   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 Servicing Fees and Advances.

     Loan Group: Any of Loan Group 1 or Loan Group 2.

     Loan Group 1: The Group 1 Mortgage Loans.

     Loan Group 2: The Group 2 Mortgage Loans.

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

     Losses: As defined in Section 5.10.

     Lower-Tier   Certificate   Sub-Account:   The   sub-account of the   Certificate
Account designated by the Securities Administrator pursuant to Section 3.09(h).

     Lower-Tier   REMIC: As defined in the Preliminary   Statement,   the assets of
which   consist   of the   Mortgage   Loans,   such   amounts   as shall be held in the
Lower-Tier Certificate Sub-Account,   the insurance policies, if any, relating to
a Mortgage   Loan and property   which   secured a Mortgage Loan and which has been
acquired by foreclosure   or deed in lieu of   foreclosure.   The Lower-Tier   REMIC
will not include the Cap Carryover   Reserve Account,   the Supplemental   Interest
Trust, the Interest Rate Swap Agreement,   the Interest Rate Cap Agreements,   the
Interest Rate Cap Agreement B Account and the Derivative Account.

     LPMI Policy: A lender-paid primary mortgage insurance policy.

     LPMI Premium   Rate:   With respect to each   Mortgage Loan covered by an LPMI
Policy, the per annum rate set forth in the applicable Mortgage Loan Schedule.

     Marker Rate: With respect to the Class CE Upper-Tier   Regular   Interest and
any   Distribution   Date,   a per annum rate   equal to two (2) times the   weighted
average   of the   Uncertificated   Middle-Tier   REMIC   Pass-Through   Rates for the

<PAGE>

Middle-Tier   Corresponding   Marker Interests and the Class MRI-ZZ Interest,   (i)
with the rate on each such   Uncertificated   Middle-Tier   Regular Interest (other
than the Class MRI-ZZ Interest)   subject to a cap equal to the lesser of (a) the
Pass-Through   Rate   of its   Corresponding   Class   of   Certificates   and   (b) the
Upper-Tier   REMIC Net WAC Cap for the purposes of this calculation and (ii) with
the rate on the Class MRI-ZZ   Interest   subject to a cap of zero for the purpose
of this calculation;   provided, however, that for this purpose,   calculations of
the Uncertificated Middle-Tier REMIC Pass-Through Rate and the related caps with
respect to the Middle-Tier Corresponding Marker Interests shall be multiplied by
a fraction,   the   numerator of which is the actual number of days in the related
Interest Accrual Period and the denominator of which is 30.

     Master   Servicer:   Wells Fargo Bank,   N.A., and any   successors-in-interest
and, if a successor master servicer is appointed hereunder,   such successor,   as
master servicer.

     Master   Servicer   Custodial   Account:   The   Eligible   Account   created   and
maintained by the Master Servicer pursuant to Section 3.09(c) in the name of the
Master Servicer for the benefit of the   Certificateholders and designated "Wells
Fargo Bank,   N.A., as Master   Servicer,   in trust for the registered   holders of
Banc of America Funding Corporation Mortgage Pass-Through   Certificates,   Series
2007-A."

     Master   Servicer    Custodial    Account    Reinvestment    Income:    For   each
Distribution   Date,   all income and gains net of any losses   realized   since the
preceding   Distribution   Date from Permitted   Investments of funds in the Master
Servicer Custodial Account.

     Master Servicer's Certificate: The monthly report required by Section 4.01.

     Master Servicing Fee: As to any Distribution Date and Loan Group, an amount
equal   to   one-twelfth   of the   Master   Servicing   Fee   Rate   multiplied   by the
aggregate Stated   Principal   Balance of the Mortgage Loans in such Loan Group as
of the Due Date in the month preceding the month in which such Distribution Date
occurs.

     Master   Servicing Fee Rate: With respect to each Mortgage Loan,   0.003% per
annum.

     Master Servicing   Officer:   Any officer of the Master Servicer involved in,
or   responsible   for, the   administration   and master   servicing of the Mortgage
Loans   whose   name   appears on a list of   servicing   officers   furnished   to the
Securities   Administrator   and the Trustee by the Master Servicer,   as such list
may from time to time be amended.

     Master   Servicing    Transfer   Costs:   All   reasonable   costs   and   expenses
(including   attorney's   fees)   incurred   by the   Trustee or a   successor   master
servicer in connection with the transfer of master servicing or servicing from a
predecessor   master   servicer,   including,   without   limitation,   any   costs   or
expenses   associated with the complete   transfer of all master servicing data or
servicing data and the   completion,   correction or   manipulation   of such master
servicing   data or servicing data as may be required by the Trustee or successor
master servicer to correct any errors or insufficiencies in the master servicing
data or servicing data or otherwise to enable the Trustee or a successor   master
servicer   to master   service   or   service,   as the case may be,   the   applicable
Mortgage Loans properly and effectively.

<PAGE>

     Maximum   MRI-ZZ   Uncertificated   Accrued   Interest   Deferral   Amount:   With
respect to any   Distribution   Date,   the excess of (a)   accrued   interest at the
Uncertificated   Middle-Tier   REMIC   Pass-Through   Rate   applicable   to the Class
MRI-ZZ   Interest   for   such    Distribution   Date   on   a   balance   equal   to   the
Uncertificated   Balance of the Class MRI-ZZ Interest minus the Middle-Tier REMIC
Overcollateralized   Amount,   in each case for such   Distribution   Date, over (b)
Uncertificated    Accrued   Interest   on   the   Middle-Tier    Corresponding   Marker
Interests,   with   the   rate   on each   such   Uncertificated   Middle-Tier   Regular
Interest   subject to a cap equal to the lesser of (i) the   Pass-Through   Rate of
the   Corresponding   Class of Certificates   and (ii) the Upper-Tier REMIC Net WAC
Cap for the   purpose   of this   calculation;   provided,   however,   that   for this
purpose,   calculations of the Uncertificated Middle-Tier REMIC Pass-Through Rate
and the related   caps with   respect to   Uncertificated   Accrued   Interest on the
Middle-Tier   Corresponding   Marker   Interests shall be multiplied by a fraction,
the   numerator   of which is the actual   number of days in the   Interest   Accrual
Period and the denominator of which is 30.

      MERS: As defined in Section 2.01(b)(iii).

     Mezzanine   Applied Realized Loss Amount:   With respect to each Distribution
Date, the excess, if any, of (a) the aggregate of the Class Certificate Balances
of the Certificates (after taking into account the distribution of the Principal
Distribution   Amount on such   Distribution   Date and any   increase   in the Class
Certificate   Balance of a Class of Certificates as a result of Recoveries)   over
(b) the aggregate Stated Principal   Balance of the Mortgage Loans as of the last
day of the related Collection Period.

     Mezzanine   Certificates:   The Class M-1,   Class M-2,   Class M-3, Class M-4,
Class   M-5,   Class   M-6,   Class M-7 and Class   M-8   Certificates,   each of which
represents (i) the corresponding Upper-Tier Regular Interest for purposes of the
REMIC   Provisions,   (ii) the right to receive the related Cap Carryover   Amounts
and (iii) the obligation to pay the Class IO   Distribution   Amount.   Middle-Tier
Certificate   Sub-Account:   The sub-account of the Certificate Account designated
by the Securities Administrator pursuant to Section 3.09(h).

     Middle-Tier   Corresponding   Marker   Interests:   The Class MRI-1A1 Interest,
Class MRI-2A1 Interest,   Class MRI-2A2 Interest,   Class MRI-2A3,   Class MRI-2A4,
Class   MRI-2A5,   Class   MRI-M1   Interest,   Class MRI-M2   Interest,   Class MRI-M3
Interest,   Class MRI-M4 Interest,   Class MRI-M5 Interest, Class MRI-M6 Interest,
Class MRI-M7 Interest and Class MRI-M8 Interest.

     Middle-Tier REMIC: As defined in the Preliminary   Statement,   the assets of
which   consist   of the   Uncertificated   Lower-Tier   Regular   Interests   and such
amounts as shall be deemed held in the Middle-Tier Certificate Sub-Account.

     Middle-Tier   REMIC   Interest Loss   Allocation   Amount:   With respect to any
Distribution   Date,   an amount   equal to (a) the   product   of (i) the   aggregate
Stated   Principal   Balance of the Mortgage Loans and related REO Properties then
outstanding and (ii) the Uncertificated   Middle-Tier REMIC Pass-Through Rate for
the Class MRI-AA Interest minus the Marker Rate, divided by (b) 12.

     Middle-Tier   REMIC   Overcollateralization    Target   Amount:   1.00%   of   the
Targeted Overcollateralization Amount.

<PAGE>

     Middle-Tier REMIC   Overcollateralized   Amount:   With respect to any date of
determination,   (i)   1.00%   of   the   aggregate   Uncertificated   Balances   of the
Uncertificated   Middle-Tier   Regular   Interests   minus (ii) the aggregate of the
Uncertificated   Balances of the Middle-Tier   Corresponding Marker Interests,   in
each case as of such date of determination.

     Middle-Tier   REMIC   Principal Loss Allocation   Amount:   With respect to any
Distribution   Date,   an amount   equal to (a) the   product   of (i) the   aggregate
Stated   Principal   Balance of the Mortgage Loans and related REO Properties then
outstanding and (ii) 1 minus a fraction, the numerator of which is two times the
aggregate of the Uncertificated Balances of the Middle-Tier Corresponding Marker
Interests,   and the denominator of which is the aggregate of the   Uncertificated
Balances of the Middle-Tier   Corresponding Marker Interests and the Class MRI-ZZ
Interest.

     Monthly Covered Amount: As defined in the Mortgage Loan Purchase Agreement.

     Monthly Excess Cashflow Amount:   For any Distribution   Date, the sum of the
Monthly Excess Interest Amount for such   Distribution   Date,   reduced by amounts
paid as part of the Principal   Distribution   Amount,   the   Overcollateralization
Release Amount for such Distribution Date and (without   duplication) any portion
of the Principal Distribution Amount remaining after principal   distributions on
the Offered Certificates on such Distribution Date.

     Monthly Excess Interest Amount: With respect to each Distribution Date, the
amount, if any, by which the Interest   Remittance   Amounts for such Distribution
Date exceeds the aggregate amount   distributed on such   Distribution Date to the
Certificates pursuant to Section 5.02(a) priorities first through twelfth.

     Monthly   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   affect the amount of the monthly
payment due on such Mortgage Loan.

     Monthly Statement: As defined in Section 5.04(b).

     Moody's: Moody's Investors Service, Inc. or any successor thereto.

     Mortgage: The mortgage,   deed of trust or other instrument creating a first
lien on a Mortgaged   Property   securing a Mortgage Note or creating a first lien
on a leasehold interest.

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

     Mortgage   Interest   Rate:   As to any Mortgage   Loan,   the per annum rate of
interest at which   interest   accrues on the   principal   balance of such Mortgage
Loan in accordance with the provisions of the related   Mortgage Note, which rate
is (a) prior to the first Rate   Adjustment Date for each such Mortgage Loan, the
initial   Mortgage   Interest Rate for such Mortgage Loan indicated on the related
Mortgage Loan Schedule and (b) from and after such Rate Adjustment Date, the sum
of the applicable   Index,   as of the Rate Adjustment Date applicable to such Due

<PAGE>

Date, and the Gross Margin,   rounded as set forth in such Mortgage Note, subject
to the Periodic Cap and the Rate Ceiling applicable to such Mortgage Loan at any
time during the life of such Mortgage Loan.

     Mortgage Loan   Purchase   Agreement:   The Mortgage Loan Purchase   Agreement,
dated   January   31,   2007,   between   BANA,   as   seller,   and the   Depositor,   as
purchaser.

     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 Defective Mortgage Loans pursuant to the provisions of
this Agreement)   transferred to the Trustee as part of the Trust Estate and from
time to time   subject to this   Agreement,   attached   hereto as   Exhibit   D-1 and
Exhibit   D-2   setting   forth the   following   information   with   respect   to each
Mortgage Loan: (i) the Mortgage Loan identifying   number; (ii) a code indicating
whether the Mortgaged   Property is   owner-occupied;   (iii) the property type for
each Mortgaged   Property;   (iv) the original months to maturity or the remaining
months   to   maturity   from the   Cut-off   Date;   (v) the   Loan-to-Value   Ratio at
origination;   (vi) the Mortgage   Interest Rate as of the Cut-off Date; (vii) the
date on which the first Monthly   Payment was due on the Mortgage   Loan,   and, if
such date is not the Due Date   currently   in effect,   such Due Date;   (viii) the
stated   maturity date;   (ix) the amount of the Monthly Payment as of the Cut-off
Date;   (x) the   paid-through   date;   (xi) the original   principal   amount of the
Mortgage Loan; (xii) the principal   balance of the Mortgage Loan as of the close
of business on the Cut-off Date, after   application of payments of principal due
on or before the Cut-off Date, whether or not collected,   and after deduction of
any payments collected of scheduled principal due after the Cut-off Date; (xiii)
a code indicating the purpose of the Mortgage Loan;   (xiv) a code indicating the
documentation   style;   (xv) a code   indicating the initial   Servicer;   (xvi) the
Appraised   Value;   (xvii) the first or next Rate Adjustment Date, as applicable;
(xviii)   the Rate   Ceiling;   (xix) the Rate   Floor;   (xx) the   Periodic   Cap, if
applicable;   (xxi) the Gross Margin;   (xxii) the Index; (xxiii) the closing date
of the Mortgage   Loan;   (xxiv) the   Servicing   Fee Rate;   and (xxv) the LPMI Fee
Rate, if any. With respect to the Mortgage Loans in the aggregate,   the Mortgage
Loan Schedule shall set forth the following information, as of the Cut-off Date:
(i) the   number   of   Mortgage   Loans;   (ii) the   current   aggregate   outstanding
principal   balance of the Mortgage Loans;   (iii) the weighted   average   Mortgage
Interest Rate of the Mortgage   Loans;   and (iv) the weighted   average   months to
maturity of the Mortgage Loans.

     Mortgage Loans:   Such of the mortgage loans transferred and assigned to the
Trustee   pursuant to Section 2.01 as from time to time are held as a part of the
Trust Estate   (including   any Substitute   Mortgage Loans and REO Property),   the
Mortgage   Loans   originally   so   held   being   identified   in the   Mortgage   Loan
Schedule.

      Mortgage   Note:    The   originally    executed   note   or   other   evidence   of
indebtedness   evidencing the   indebtedness of a Mortgagor under a Mortgage Loan,
together with all riders thereto and amendments thereof.

     Mortgaged Property: The underlying property securing a Mortgage Loan, which
may include Cooperative Stock or residential long-term leases.

     Mortgagor: The obligor on a Mortgage Note.

<PAGE>

     National   City   Mortgage:   National   City   Mortgage Co., in its capacity as
Servicer under the National City Servicing Agreement.

     National City Servicing   Agreement:   Collectively,   (i) that certain Master
Seller's Warranties and Servicing   Agreement,   dated as of September 1, 2003, by
and between BANA (as successor in interest to BAMCC) and National City Mortgage,
(ii)as amended by that certain Amendment No. 1, dated as of July 1, 2004, by and
among BAMCC,   National City Mortgage and BANA,   (iii) as amended by that certain
Master   Assignment,   Assumption and Recognition   Agreement,   dated as of July 1,
2004,   by and among BAMCC,   National   City   Mortgage,   BANA and   Wachovia   Bank,
National Association,   (iv) as amended by that certain Amendment No. 2, dated as
of October 1, 2004,   by and between   National   City   Mortgage   and BANA,   (v) as
amended by that certain   Amendment   No. 3, dated as of August 11,   2005,   by and
between   National   City   Mortgage   and BANA,   (vi) as   amended   by that   certain
Regulation   AB   Compliance   Addendum   to   the   Master   Seller's   Warranties   and
Servicing   Agreement,   dated as of January 1, 2006, by and between National City
Mortgage and BANA, (vii) that certain Assignment and Conveyance Agreement, dated
as December 31, 2006, by and between   National City Mortgage and BANA and (viii)
that certain Assignment, Assumption and Recognition Agreement, dated January 31,
2007, by and among BANA, National City Mortgage, the Depositor and the Trustee.

     Net Mortgage Interest Rate: As to any Mortgage Loan and Distribution   Date,
such   Mortgage   Loan's   Mortgage   Interest   Rate thereon on the first day of the
calendar   month   preceding   the month of such   Distribution   Date reduced by the
applicable Administrative Fee Rate for such Mortgage Loan.

     Net Swap Payment:   With respect to any   Distribution   Date, any net payment
(other than a Swap Termination   Payment)   payable by the   Supplemental   Interest
Trust to the Swap   Provider on the   related   Fixed Rate Payer   Payment   Date (as
defined in the Interest Rate Swap Agreement).

     Net Swap Receipt:   With respect to any   Distribution   Date, any net payment
(other   than a Swap   Termination   Payment)   made   by the   Swap   Provider   to the
Supplemental   Interest Trust on the related Floating Rate Payer Payment Date (as
defined in the Interest Rate Swap   Agreement),   or any amount withdrawn from the
Derivative Account that is required under Section 9.01(d) to be treated as a Net
Swap Receipt for purposes of determining the distributions from the Supplemental
Interest Trust.

     Net WAC Cap: For any Distribution   Date will be a per annum rate (expressed
on the basis of an assumed   360-day   year and the actual   number of days elapsed
during the related   Interest Accrual Period) equal to (i) the average of the Net
Mortgage   Interest   Rates for the Mortgage   Loans,   weighted on the basis of the
Stated   Principal   Balances   of the   Mortgage   Loans as of the   first day of the
related   Collection   Period less (ii) 12 times the   quotient of (a) the Net Swap
Payment or Swap Termination   Payment, if any, made to the Swap Provider (only if
such Swap   Termination   Payment is not due to a Swap Provider   Trigger Event (as
defined in the   Interest   Rate Swap   Agreement))   and (b) the   aggregate   Stated
Principal   Balance   of the   Mortgage   Loans as of the first   day of the   related
Collection Period.

     NIMS Insurer: Any insurer that is guaranteeing certain payments under notes
secured   by   collateral   which   includes   all   or a   portion   of   the   Class   CE
Certificates.

<PAGE>

     Non-U.S. Person: A Person other than a U.S. Person.

     Nonrecoverable   Advance:   Any   portion   of an   Advance   previously   made or
proposed to be made in respect of a Mortgage Loan which has not been   previously
reimbursed and which, in the good faith judgment of the applicable Servicer will
not or, in the case of a proposed Advance,   would not be ultimately   recoverable
from the related Mortgagor,   related Liquidation Proceeds, Insurance Proceeds or
other recoveries in respect of the related Mortgage Loan.

     Notional Amount:   With respect to the Class CE Upper-Tier   Regular Interest
and any date of   determination,   a notional   amount equal to the then   aggregate
Uncertificated   Balances of the Uncertificated   Middle-Tier Interests other than
the Class MRI-R Interest.

     NYCEMA: A New York Consolidation, Extension and Modification Agreement.

     Offered Certificates: The Senior and Mezzanine Certificates.

     Officer's   Certificate:   A certificate signed by the Chairman of the Board,
Vice Chairman of the Board,   President or a Vice President and by the Treasurer,
the Secretary or one of the Assistant   Treasurers or Assistant   Secretaries,   or
any other duly authorized   officer of the Depositor or the Master   Servicer,   as
the case may be, and delivered to the Trustee or the   Securities   Administrator,
as required in this Agreement.

     One-Month LIBOR: As to any Distribution Date, the arithmetic mean of London
Interbank   offered rate   quotations   for   one-month   U.S.   Dollar   deposits,   as
determined by the Securities Administrator in accordance with Section 5.09.

     One-Year   CMT   Index:   A rate per annum   that is   defined   to be the weekly
average   yield on United   States   Treasury   Securities   adjusted   to a   constant
maturity of one year, as made available by the Federal Reserve Board,   published
in Federal Reserve Statistical Release H.15 (519) and most recently available up
to the date 45 days before the applicable Rate Adjustment Date.

     One-Year LIBOR Index: A rate per annum that is defined to be the average of
interbank   offered   rates for one-year U.S.   dollar-denominated   deposits in the
London   market,   as   published   in The Wall   Street   Journal   and most   recently
available   either (i) as of the first   Business Day in the month   preceding   the
month   of the   applicable   Rate   Adjustment   Date or (ii) up to the date 45 days
before the applicable Rate Adjustment Date.

     Opinion of Counsel:   A written opinion of counsel acceptable to the Trustee
if such opinion is delivered to the Trustee,   or   acceptable   to the   Securities
Administrator if such opinion is delivered to the Securities Administrator,   who
may be counsel for the Depositor or the Master Servicer, except that any opinion
of counsel   relating to the   qualification   of any REMIC created   hereunder as a
REMIC or compliance with the REMIC   Provisions must be an opinion of Independent
counsel.

     Optional   Termination Date: The first Distribution Date on which all of the
Mortgage Loans and all related REO Property remaining in the Trust Estate may be
purchased pursuant to Section 10.01.

<PAGE>

     OTS: The Office of Thrift Supervision.

     Overcollateralization   Amount: As of any Distribution   Date, the excess, if
any, of (x) the aggregate Stated   Principal   Balance of the Mortgage Loans as of
the last day of the   related   Collection   Period   over (y) the   aggregate   Class
Certificate   Balance of all Classes of   Certificates   (after taking into account
all distributions of principal on such Distribution Date and the increase of any
Class   Certificate   Balance of a Class of Certificates as a result of Recoveries
related to the Mortgage Loans).

     Overcollateralization   Deficiency: As of any Distribution Date, the excess,
if any, of (x) the Targeted Overcollateralization Amount over (y) the difference
(which may be negative)   between (i) the aggregate Stated   Principal   Balance of
the Mortgage Loans as of the last day of the related   Collection Period and (ii)
the aggregate Class   Certificate   Balance of all Classes of Certificates   (after
taking   into   account   the   reduction   on such   Distribution   Date of the   Class
Certificate   Balances   of   all   Classes   of   Certificates    resulting   from   the
distribution of the Principal   Distribution   Amount (but not the Extra Principal
Distribution Amount) on that Distribution Date, but prior to taking into account
any Applied Realized Loss Amounts on that Distribution Date).

     Overcollateralization Release Amount: With respect to any Distribution Date
on or after the   Stepdown   Date on which a Trigger   Event is not in effect,   the
lesser of (x) the Principal Remittance Amount for such Distribution Date and (y)
the   excess,   if   any,   of   (i)   the    Overcollateralization    Amount   for   such
Distribution   Date,   assuming   that 100% of the Principal   Remittance   Amount is
applied as a principal   payment on the   Certificates on such   Distribution   Date
over (ii) the Targeted   Overcollateralization Amount for such Distribution Date.
With respect to any Distribution Date on which a Trigger Event is in effect, the
Overcollateralization Release Amount will be zero.

     Ownership   Interest:   As to any   Certificate,   any   ownership   or   security
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, as owner or as pledgee.

     Pass-Through   Rate: With respect to each Distribution Date and any Class of
interest-bearing   Certificates   (other than the Class CE Certificates),   the per
annum rate set forth or described in the Preliminary Statement.   With respect to
each Distribution Date and the Uncertificated   Lower-Tier Regular Interests, the
Uncertificated    Lower-Tier   REMIC   Pass-Through   Rate.   With   respect   to   each
Distribution Date and the   Uncertificated   Middle-Tier   Regular   Interests,   the
Uncertificated   Middle-Tier   REMIC   Pass-Through   Rate.   With   respect   to   each
Distribution Date and the Upper-Tier   Regular Interests (other than the Class CE
Upper-Tier   Regular Interest and the Class Swap-IO Upper-Tier Regular Interest),
the Uncertificated Upper-Tier REMIC Pass-Through Rate.

     With   respect   to   the   Class   CE   Upper-Tier    Regular   Interest   and   any
Distribution   Date,   a per annum rate equal to the   percentage   equivalent   of a
fraction,   the numerator of which is the sum of the amounts calculated   pursuant
to clauses (A) through (D) below,   and the denominator of which is the aggregate
of the   Uncertificated   Balances of the Class MRI-AA   Interest,   the Middle-Tier
Corresponding Marker Interests, and Uncertificated MRI-ZZ Interest. For purposes

<PAGE>

of   calculating   the   Pass-Through   Rate   for the   Class CE   Upper-Tier   Regular
Interest, the numerator is equal to the sum of the following components:

               (A) the   Uncertificated   Middle-Tier REMIC   Pass-Through Rate for
          the Class MRI-AA Interest minus the Marker Rate,   applied to an amount
          equal to the Uncertificated Balance of the Class MRI-AA Interest;

               (B) the   Uncertificated   Middle-Tier REMIC   Pass-Through Rate for
          each Middle-Tier Corresponding Marker Interest, in each case minus the
          Marker Rate, applied in each case to an amount equal to the respective
          Uncertificated   Balance of each such Middle-Tier   Corresponding Marker
          Interest;

               (C) the   Uncertificated   Middle-Tier REMIC   Pass-Through Rate for
          the Class MRI-ZZ Interest minus the Marker Rate,   applied to an amount
          equal to the Uncertificated Balance of the Class MRI-ZZ Interest; and

               (D) 100% of the   Uncertificated   Accrued   Interest   on the   Class
          MRI-R Interest.

     With respect to the Class CE Certificates   and any   Distribution   Date, the
Class CE Certificates shall be entitled to 100% of the amounts   distributable to
the Class CE Upper-Tier Regular Interest.

     With   respect to the Class   Swap-IO   Upper-Tier   Regular   Interest   and any
Distribution   Date,   the Class   Swap-IO   Upper-Tier   Regular   Interest   shall be
entitled to 100% of the amounts distributable to the Class MRI-IO Interest.

     Paying Agent: As defined in Section 9.13.

     Percentage   Interest:   As   to   any   Certificate   (other   than   a   Class   CE
Certificate),   the   percentage   obtained by dividing   the   Denomination   of such
Certificate by the Initial Class Certificate   Balance of the Class of which such
Certificate is a part.   With respect to a Class CE   Certificate,   the portion of
the Class evidenced thereby, expressed as a percentage, as stated on the face of
such Certificate;   provided,   however,   that the sum of all such percentages for
each such Certificate totals 100%.

     Periodic   Advance:   With respect to each   Servicer,   shall have the meaning
given to term "Monthly Advance" in the applicable Servicing Agreement.

     Periodic Cap: For each Mortgage Loan, the applicable limit on adjustment of
the   Mortgage   Interest   Rate for each Rate   Adjustment   Date   specified   in the
applicable   Mortgage Note and designated as such in the applicable Mortgage Loan
Schedule.

     Permitted Investments: One or more of the following:

          (i)   obligations   of or guaranteed as to principal and interest by the
     United States,   Freddie Mac, Fannie Mae or any agency or instrumentality of
     the United   States when such   obligations   are backed by the full faith and
     credit of the United States;   provided that such obligations of Freddie Mac
<PAGE>
    
     or Fannie Mae shall be   limited to senior   debt   obligations   and   mortgage
     participation   certificates   other than investments in   mortgage-backed   or
     mortgage    participation    securities    with   yields    evidencing    extreme
     sensitivity to the rate of principal payments on the underlying   mortgages,
     which shall not constitute Permitted Investments hereunder;

          (ii)   repurchase   agreements   on   obligations   specified in clause (i)
     maturing not more than one month from the date of acquisition   thereof with
     a corporation incorporated under the laws of the United States or any state
     thereof rated not lower than "P-1" by Moody's,   "F1" by Fitch and "A-1+" by
     S&P;

          (iii) federal funds,   certificates of deposit,   demand deposits,   time
     deposits   and   bankers'   acceptances   (which   shall   each have an   original
     maturity of not more than 90 days and, in the case of bankers' acceptances,
     shall in no event   have an   original   maturity   of more   than 365 days or a
     remaining   maturity   of more than 30 days)   denominated   in   United   States
     dollars of any U.S.   depository   institution or trust company   incorporated
     under the laws of the United States or any state   thereof,   rated not lower
     than "P-1" by Moody's, "F1" by Fitch and "A-1+" by S&P;

          (iv) commercial paper (having original maturities of not more than 365
     days) of any corporation   incorporated   under the laws of the United States
     or any state thereof   which is rated not lower than "P-1" by Moody's,   "F1"
     by Fitch and "A-1+" by S&P;

           (v)   investments   in   money   market   funds   (including   funds   of   the
     Securities Administrator or its affiliates, or funds for which an affiliate
     of the Securities Administrator acts as advisor, as well as funds for which
     the Securities   Administrator and its affiliates may receive   compensation)
     rated "Aaa" by Moody's,   "AAA" by Fitch (if rated by Fitch) and "AAAm G" by
     S&P or otherwise approved in writing by each Rating Agency; and

          (vi) other   obligations   or   securities   that are   acceptable   to each
     Rating   Agency and, as evidenced   by an Opinion of Counsel   obtained by the
     Master Servicer or Securities   Administrator,   as the case may be, will not
     affect the   qualification   of any REMIC created   under this   Agreement as a
     REMIC;

provided,   however,   that no   instrument   shall be a Permitted   Investment if it
represents   either (a) the right to receive only interest   payments with respect
to the underlying debt instrument or (b) the right to receive both principal and
interest   payments derived from   obligations   underlying such instrument and the
principal   and   interest   with   respect   to such   instrument   provide a yield to
maturity   greater   than 120% of the yield to maturity at par of such   underlying
obligations.

     Permitted   Transferee:   Any Person other than (i) the United States, or any
State or any 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
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) (except
certain   farmers'   cooperatives   described   in Code   Section   521),   (iv)   rural

<PAGE>

electric and telephone cooperatives described in Code Section 1381(a)(2)(C), (v)
a Person with respect to whom the income on a Residual   Certificate is allocable
to a foreign   permanent   establishment   or fixed base,   within the meaning of an
applicable income tax treaty, of such Person or any other U.S. Person,   and (vi)
any other Person so designated   by the Depositor   based on an Opinion of Counsel
to the effect that any   transfer to such Person may cause the Trust or any other
Holder of a   Residual   Certificate   to incur   tax   liability   that   would not be
imposed   other than on   account of such   transfer.   The terms   "United   States,"
"State" and   "international   organization"   shall have the meanings set forth in
Code Section 7701 or successor provisions.

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

     Physical Certificates: The Class R and Class CE Certificates.

     Plan: As defined in Section 6.02(e).

     Prepayment   Interest   Shortfall:   As to   any   Distribution   Date   and   each
Mortgage   Loan   subject to a Principal   Prepayment   received   during the related
Prepayment   Period,   the amount,   if any,   by which one month's   interest at the
related Net Mortgage   Interest   Rate on such   Principal   Prepayment   exceeds the
amount of interest paid in connection with such Principal Prepayment.

     Prepayment   Period:   With respect to any   Distribution   Date,   the calendar
month preceding the calendar month in which such Distribution Date occurs.

     Primary Mortgage Insurance Policy: Each policy of primary mortgage guaranty
insurance or any replacement   policy therefor with respect to any Mortgage Loan,
in each case issued by an insurer acceptable to Fannie Mae or Freddie Mac.

     Principal   Distribution Amount: As to any Distribution Date, the sum of (i)
the Principal Remittance Amount minus the Overcollateralization   Release Amount,
if any, and (ii) the Extra Principal Distribution Amount, if any.

     Principal   Prepayment:   With respect to each Mortgage   Loan, any payment or
other recovery of principal on a Mortgage Loan (other than Liquidation Proceeds)
which is received in advance of its scheduled Due Date and is not accompanied by
an amount of interest   representing   scheduled interest due on any date or dates
in any month or months subsequent to the month of prepayment.

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

     Principal   Remittance Amount: With respect to any Distribution Date and the
Mortgage Loans, to the extent of funds available   therefor,   the amount equal to
(A) the sum (less   amounts   available   for   reimbursement   to the   Servicers for
Advances and expenses pursuant to the applicable Servicing Agreement and amounts
reimbursable or payable to the Master   Servicer,   Securities   Administrator   and
Trustee   pursuant to this   Agreement)   of: (i) each   payment of   principal   on a
Mortgage   Loan due during the   related   Collection   Period and   received   by the
<PAGE>

Servicers on or prior to the related   Determination   Date, and any Advances with
respect thereto, (ii) all Principal Prepayments received by the Servicers during
the related Prepayment Period,   (iii) Insurance Proceeds,   Liquidation   Proceeds
and Recoveries allocable to principal actually collected by the Servicers during
the related   Prepayment   Period,   (iv) with respect to Defective   Mortgage Loans
repurchased   during the related Prepayment Period, the portion of the Repurchase
Price   allocable to   principal,   (v) any   Substitution   Adjustment   Amounts paid
during the related   Prepayment Period and (vi) on the Distribution Date on which
the Mortgage   Loans and related REO Property are   purchased in   accordance   with
Section 10.01 hereof,   that portion of the purchase price therefor in respect of
principal less (B) any amounts   payable to the Swap Provider   (including any Net
Swap Payment and any Swap Termination   Payment owed to the Swap Provider,   other
than   a   Defaulted   Swap   Termination   Payment)   not   covered   by   the   Interest
Remittance   Amount   (without   giving   effect   to   clause   (B) of the   definition
thereof).

     Private Certificates: The Class R and Class CE Certificates.

     Purchase   Obligation:   An   obligation   of the Sponsor or the   Depositor   to
purchase   Mortgage Loans under the   circumstances   and in the manner provided in
Section 2.02 or 2.04.

     Purchase   Price:   With respect to each   Mortgage   Loan that was a Defective
Mortgage   Loan   repurchased   on any date   pursuant to Sections   2.02 or 2.04, an
amount   equal to the sum of (i) the Stated   Principal   Balance   of the   Mortgage
Loan, (ii) interest on such Stated   Principal   Balance at the Mortgage   Interest
Rate from the date on which interest has last been paid and distributed   through
the last day of the month in which   such   repurchase   takes   place and (iii) any
costs and damages incurred by the Trust in connection with any violation by such
repurchased   Mortgage   Loan of any   predatory or abusive   lending law,   less (x)
amounts received or advanced in respect of such repurchased   Mortgage Loan which
are being held in the applicable   Servicer Custodial Account for distribution in
the month of repurchase and (y) if the Person repurchasing such Mortgage Loan is
servicing   such   Mortgage   Loan   under   the   related   Servicing   Agreement,   the
Servicing Fee for such Mortgage Loan.

     Rate   Adjustment   Date: As to each Mortgage   Loan, the Due Date on which an
adjustment to the Mortgage Interest Rate of such Mortgage Loan becomes effective
under the related Mortgage Note.

     Rate Ceiling:   The maximum per annum Mortgage Interest Rate permitted under
the related Mortgage Note and indicated on the related Mortgage Loan Schedule.

     Rate Floor:   The minimum per annum Mortgage   Interest Rate permitted   under
the related Mortgage Note and indicated on the related Mortgage Loan Schedule.

     Rating Agency:   Each of S&P, Moody's and Fitch. 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, as is
designated by the Depositor,   notice of which   designation shall be given to the
Trustee, the Master Servicer and the Securities Administrator. References herein
to a given rating or rating   category of a Rating   Agency shall mean such rating
category without giving effect to any modifiers.

<PAGE>

     Realized Loss: With respect to each Liquidated   Mortgage Loan, an amount as
of the date of such   liquidation,   equal to (i) the unpaid principal   balance of
the   Liquidated   Mortgage   Loan as of the date of such   liquidation,   plus   (ii)
interest   at the Net   Mortgage   Interest   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 Net Mortgage Interest Rate and to principal of the
Liquidated Mortgage Loan. With respect to each Mortgage Loan that 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.   With respect to each   Mortgage Loan that has become the subject of a
Debt Service   Reduction and any Distribution   Date, the amount, if any, by which
the principal portion of the related Monthly Payment has been reduced.

     Realized Loss Amortization Amount: As to each Class of Offered Certificates
and any Distribution Date, the lesser of (x) the Unpaid Realized Loss Amount for
such Class and (y) the remaining   Monthly Excess Cashflow   Amount   available for
such Class pursuant to Section 5.02(c)(E) or (F), as applicable.

     Recognition Agreement:   With respect to a Cooperative Loan, the recognition
agreement between the Cooperative and the originator of such Cooperative Loan.

     Record   Date:   With respect to the Class CE and Class R   Certificates,   the
last   Business   Day of the month   immediately   preceding   the month in which the
related Distribution Date occurs. With respect to the Offered Certificates,   the
Business Day immediately preceding each Distribution Date; provided, however, if
Definitive Certificates are issued for any of such Certificates, the Record Date
for such   Certificates will be the last Business Day of the month preceding such
Distribution Date.

     Recovery:   Any   amount   received   on a   Mortgage   Loan   subsequent   to such
Mortgage Loan being determined to be a Liquidated Mortgage Loan.

     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 - 1,631 (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.

     Reimbursement Amount: As defined in Section 2.02.

     Related Group: For Loan Group 1, Group 1; and for Loan Group 2, Group 2.

     Related Loan Group:   For Group 1, Loan Group 1; and for Group 2, Loan Group
2.

<PAGE>

     Relevant   Servicing   Criteria:   The   Servicing   Criteria   applicable to the
various parties,   as set forth on Exhibit N attached hereto.   For   clarification
purposes,   multiple   parties   can   have   responsibility   for the   same   Relevant
Servicing Criteria.   With respect to a Servicing Function Participant engaged by
the   Master   Servicer,   the   Securities   Administrator,   the   Custodian   or   any
Servicer,   the term "Relevant   Servicing Criteria" may refer to a portion of the
Relevant Servicing Criteria applicable to such parties.

     Relief Act: The Servicemembers   Civil Relief Act, as it may be amended from
time to time.

     Relief Act   Reduction:   With   respect   to any   Distribution   Date,   for any
Mortgage   Loan as to which there has been a reduction   in the amount of interest
collectible   thereon   for the   related   Collection   Period   as a   result   of the
application of the Relief Act or comparable state   legislation,   the amount,   if
any, by which (i) interest collectible on such Mortgage Loan for such Collection
Period is less than (ii) interest   accrued pursuant to the terms of the Mortgage
Note on the same   principal   amount   and for the   same   period   as the   interest
collectible on such Mortgage Loan for the related Collection Period.

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

     REMIC Certificate Maturity Date: As set forth in Section 2.07.

     REMIC Provisions: Provisions of the federal income tax law relating to real
estate mortgage investment   conduits,   which appear at Section 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.

     REMIC   Regular   Interests:   Any of the   Uncertificated   Lower-Tier   Regular
Interests,   Uncertificated   Middle-Tier   Regular   Interests   and the   Upper-Tier
Regular Interests.

     Remittance Date: The 18th day of each month beginning in February 2007 (or,
if such day is not a Business Day, the preceding Business Day).

     REO Disposition Period: As defined in Section 3.15.

     REO Proceeds:   Proceeds, net of any related expenses of a Servicer received
in respect of any REO Property (including, without limitation, proceeds from the
rental of the related Mortgaged Property), which are received prior to the final
liquidation of such Mortgaged Property.

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

     Reportable Event: As defined in Section 3.22(d).

     Reporting Servicer: As defined in Section 3.22(c)(i).

<PAGE>

     Request for Release: The Request for Release submitted by a Servicer to the
Custodian on behalf of the Trustee, substantially in the form attached hereto as
Exhibit E.

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

     Reserve Interest Rate: As defined in Section 5.09.

     Residual Certificate: The Class R Certificate.

     Responsible   Officer:   When   used   with   respect   to   the   Trustee   or   the
Securities   Administrator,   any officer of the Corporate Trust Department of the
Trustee or the Securities   Administrator,   as   applicable,   including any Senior
Vice President,   any Vice President, any Assistant Vice President, any Assistant
Secretary, any Trust Officer or Assistant Trust Officer, or any other officer of
the Trustee or Securities Administrator,   as applicable,   customarily performing
functions similar to those performed by any of the above designated officers and
having direct responsibility for the administration of this Agreement.

     S&P: Standard & Poor's, a division of The McGraw-Hill   Companies,   Inc., or
any successor thereto.

     Sarbanes-Oxley Certification: As defined in Section 3.22(e).

     Securities     Administrator:     Wells    Fargo    Bank,     N.A.,     and    its
successors-in-interest and, if a successor securities administrator is appointed
hereunder, such successor, as securities administrator.

     Security   Agreement:   With respect to a Cooperative   Loan, the agreement or
mortgage   creating   a   security   interest   in   favor   of the   originator   of the
Cooperative Loan in the related Cooperative Stock.

     Senior   Certificates:   The Class   1-A-1,   Class 2-A-1,   Class 2-A-2,   Class
2-A-3,   Class 2-A-4 and Class 2-A-5   Certificates,   each of which represents (i)
the   corresponding   Upper-Tier   Regular   Interest   for   purposes   of   the   REMIC
Provisions,   (ii) the right to receive   the related   Cap   Carryover   Amounts and
(iii) the obligation to pay the Class IO Distribution Amount.

     Senior   Enhancement   Percentage:   For any Distribution Date, the percentage
obtained by dividing (x) the sum of (i) the aggregate Class Certificate   Balance
of the Mezzanine   Certificates before taking into account   distributions on such
Distribution   Date and (ii) the   Overcollateralization   Amount   as of the   prior
Distribution   Date by (y) the aggregate Stated Principal Balance of the Mortgage
Loans as of the last day of the related Collection Period.

     Senior   Principal   Distribution   Amount:   As of any   Distribution   Date (i)
before   the   Stepdown   Date or as to which a   Trigger   Event is in   effect,   the
Principal Distribution Amount and (ii) on or after the Stepdown Date and as long
as a Trigger   Event is not in   effect,   the   excess of (a) the   aggregate   Class
Certificate   Balance   of the   Senior   Certificates   immediately   prior   to   such
Distribution   Date over (b) the lesser of (x) the   product of (1) 89.10% and (2)
the aggregate Stated Principal   Balance of the Mortgage Loans as of the last day
<PAGE>

of the   related   Collection   Period   and (y) the   amount by which the   aggregate
Stated Principal Balance of the Mortgage Loans as of the last day of the related
Collection   Period   exceeds the   product of (1) 0.35% and (2) the   Cut-off   Date
Principal Balance.

     Senior Specified Enhancement Percentage: For any date, 10.90%.

     Servicer:   Any of BANA,   CWHLS,   National City Mortgage,   Washington Mutual
Bank and Wells   Fargo,   each in their   capacity   as a servicer   of the   Mortgage
Loans, or any successor servicer appointed as herein provided.

     Servicer Custodial   Accounts:   The separate accounts created and maintained
by each of the Servicers pursuant to the applicable Servicing Agreement.

     Servicing   Advance:   With respect to each Servicer,   shall have the meaning
given to the term "Servicing Advances" in the applicable Servicing Agreement.

     Servicing Agreements:   Any of the BANA Servicing Agreement,   the Countywide
Home Loans Servicing Agreement,   the National City Servicing Agreement, the WAMU
Servicing Agreement and the Wells Fargo Servicing Agreement.

     Servicing Criteria: The criteria set forth in paragraph (d) of Item 1122 of
Regulation AB, as such may be amended from time to time

     Servicing Fee: With respect to each Servicer,   as defined in the applicable
Servicing Agreement.

     Servicing Fee Rate: With respect to each Mortgage Loan, as set forth on the
applicable Mortgage Loan Schedule.

     Servicing   File:   With   respect to each   Mortgage   Loan,   as defined in the
applicable Servicing Agreement.

     Servicing Function   Participant:   Any Subcontractor   utilized by the Master
Servicer,   the Securities   Administrator or the Custodian that is "participating
in the servicing function" within the meaning of Item 1122 of Regulation AB.

     Servicing Officer: With respect to each Servicer, as defined in the related
Servicing Agreement.

     Servicing   Transfer Costs:   All reasonable costs and expenses of the Master
Servicer   or   the   Trustee,   as   applicable,   related   to any   termination   of a
Servicer,   appointment of a successor Servicer or the transfer and assumption of
servicing by the Master Servicer or the Trustee, as applicable,   with respect to
any Servicing Agreement (including,   without limitation, (i) all legal costs and
expenses and all due diligence costs and expenses   associated with an evaluation
of the potential   termination of the Servicer as a result of an event of default
by such   Servicer   and (ii) any costs or expenses   associated   with the complete
transfer of all servicing data and the completion, correction or manipulation of
such servicing data as may be required by the Master Servicer or the Trustee, as

<PAGE>

applicable,   to correct any errors or   insufficiencies   in the servicing data or
otherwise   to enable the Master   Servicer   or the   Trustee,   as   applicable,   to
service the Mortgage Loans properly and effectively).

     Similar Law: As defined in Section 6.02(e).

     Six-Month   LIBOR Index:   A rate per annum that is defined to be the average
of interbank offered rates for six-month U.S. dollar-denominated deposits in the
London   market,   as   published   in The Wall   Street   Journal   and most   recently
available   either (i) as of the first   Business Day in the month   preceding   the
month   of the   applicable   Rate   Adjustment   Date or (ii) up to the date 45 days
before the applicable Rate Adjustment Date.

     Sponsor:   Bank   of   America,   National   Association,    a   national   banking
association, or its successor in interest, as seller of the Mortgage Loans under
the Mortgage Loan Purchase Agreement.

     Stated Principal Balance:   As to any Mortgage Loan and Due Date, the unpaid
principal   balance of such   Mortgage   Loan as of such 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) after giving effect to any previous partial Principal   Prepayments
and Liquidation   Proceeds allocable to principal (other than with respect to any
Liquidated   Mortgage   Loan) and to the payment of principal due on such Due Date
and   irrespective   of any delinquency in payment by the related   Mortgagor,   and
after giving effect to any Deficient Valuation.

     Stepdown Date: The earlier to occur of (i) the   Distribution   Date on which
the aggregate Class Certificate Balance of the Senior Certificates is reduced to
zero and (ii) the later to occur of (x) the   Distribution   Date in February 2010
and (y) the   Distribution   Date on which the Senior   Enhancement   Percentage   is
greater than or equal to the Senior Specified Enhancement Percentage.

     Subcontractor:   Any   vendor,   subcontractor   or   other   Person   that is not
responsible for the overall servicing 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,   the
Securities Administrator or the Custodian.

     Substitute   Mortgage   Loan:   A Mortgage   Loan   substituted   for a Defective
Mortgage   Loan which must,   on the date of such   substitution   (i) have a Stated
Principal   Balance,   after   deduction   of the   principal   portion of the Monthly
Payment due in the month of substitution,   not in excess of the Stated Principal
Balance of the Defective   Mortgage Loan; (ii) have a Net Mortgage   Interest Rate
not less   than,   and not more than two   percent   (2%)   greater   than that of the
Defective   Mortgage   Loan;   (iii) be of the same type as the Defective   Mortgage
Loan;   (iv) have a   Loan-to-Value   Ratio not higher   than that of the   Defective
Mortgage   Loan;   (v) have a credit   score not less   than   that of the   Defective
Mortgage   Loan;   (vi) have a credit   grade not lower in quality than that of the
Defective   Mortgage   Loan;   (vii) have a remaining   term to maturity not greater
than (and not more than one (1) year less than) that of the   Defective   Mortgage
Loan;   (viii) have the same lien priority as the Defective   Mortgage   Loan;   and

<PAGE>

(ix) comply with each Mortgage Loan representation and warranty set forth in the
Mortgage Loan Purchase Agreement,   the Servicing   Agreements and this Agreement.
More   than one   Substitute   Mortgage   Loan may be   substituted   for a   Defective
Mortgage Loan if such Substitute Mortgage Loans meet the foregoing attributes in
the aggregate.

     Substitution Adjustment Amount: As defined in Section 2.02.

     Supplemental   Interest Trust: The trust created pursuant to Section 5.11 of
this Agreement and designated as the "Supplemental   Interest Trust,"   consisting
of the Interest Rate Swap   Agreement and the Interest Rate Cap   Agreements,   the
Supplemental   Interest   Trust   Trustee's   rights   under the   Interest   Rate Swap
Agreement and the Interest Rate Cap   Agreements,   the   Derivative   Account,   the
Interest Rate Cap Agreement B Account and the Cap Carryover Reserve Account. The
Supplemental Interest Trust is not an asset of any REMIC created hereunder.

     Supplemental   Interest   Trust   Trustee:   Wells   Fargo   Bank,   N.A.,   or any
successor Supplemental Interest Trust Trustee appointed as herein provided.

     Swap LIBOR: A per annum rate equal to the floating rate payable by the Swap
Provider under the Interest Rate Swap Agreement.

     Swap Notional Amount:   With respect to each Distribution   Date, the related
notional amount set forth on Schedule A of the Interest Rate Swap Agreement.

     Swap Provider: The Bank of New York.

     Swap Termination Payment: Any payment payable by the Supplemental   Interest
Trust or the Swap Provider upon   termination of the Interest Rate Swap Agreement
as a result   of an Event of   Default   (as   defined   in the   Interest   Rate   Swap
Agreement)   or a   Termination   Event   (as   defined   in the   Interest   Rate   Swap
Agreement).

     Targeted   Overcollateralization   Amount: As of any Distribution Date, 0.35%
of the aggregate Stated   Principal   Balance of the Mortgage Loans on the Cut-off
Date.

     Tax   Matters   Person:   Any person   designated   as "tax   matters   person" in
accordance with Section 5.07 and the manner   provided under Treasury   Regulation
ss. 1.860F-4(d) and Treasury Regulation ss. 301.6231(a)(7)-1.

     Telerate Page 3750: The display page currently so designated on the Reuters
Telerate   Service (or such other page as may replace the Telerate Page 3750 page
on that service for the purpose of displaying   London interbank offered rates of
major banks).

     Total Covered Amount: As defined in the Mortgage Loan Purchase Agreement.

     Treasury Regulations: The final and temporary regulations promulgated under
the Code by the U.S. Department of the Treasury.

     Trigger   Event:   With   respect   to   any   Distribution    Date,   if   (i)   the

<PAGE>

three-month rolling average of 60+ Day Delinquent Loans equals or exceeds 40.00%
of the Senior   Enhancement   Percentage or (ii) the aggregate   amount of Realized
Losses   incurred on the   Mortgage   Loans since the Cut-off Date through the last
day of the   related   Collection   Period   (reduced   by the   aggregate   amount   of
Recoveries related to the Mortgage Loans received since the Cut-off Date through
the last day of the related   Collection Period on the Mortgage Loans) divided by
the aggregate Cut-off Date Principal Balance exceeds the applicable   percentages
set forth below with respect to such Distribution Date:

<TABLE>
<S>      <C>     <C>     <C>     <C>     <C>     <C>

  Distribution Date Occurring In                      Percentage

February 2009 through January 2010      0.20% for the first month, plus an
                                        additional 1/12th of 0.25% for each
                                       month thereafter

February 2010 through January 2011      0.45% for the first month, plus an
                                       additional 1/12th of 0.30% for each
                                       month thereafter

February 2011 through January 2012      0.75% for the first month, plus an
                                       additional 1/12th of 0.30% for each
                                        month thereafter

February 2012 through January 2013      1.05% for the first month, plus an
                                       additional 1/12th of 0.20% for each
                                       month thereafter

February 2013 and thereafter            1.25%

</TABLE>

     Trust: The trust created by this Agreement,   which shall be named the "Banc
of America Funding 2007-A Trust."

     Trust Estate:   The segregated pool of assets subject   hereto,   constituting
the primary trust created hereby and to be administered hereunder,   with respect
to a portion of which multiple REMIC elections are to be made, such entire Trust
Estate   consisting   of: (i) such Mortgage Loans as from time to time are subject
to this   Agreement,   together   with the Mortgage   Files   relating   thereto,   and
together   with   all   collections   thereon   and   proceeds   thereof,   (ii) any REO
Property,   together with all collections thereon and proceeds thereof, (iii) the
Trustee's rights with respect to the Mortgage Loans under all insurance policies
required to be maintained   pursuant to this Agreement and any proceeds   thereof,
(iv) the right to receive   amounts,   if any,   payable on behalf of any Mortgagor
from the   Buy-Down   Account   relating to any   Buy-Down   Mortgage   Loan,   (v) the
Depositor's rights under the Servicing Agreements and the Mortgage Loan Purchase
Agreement   (including   any   security   interest   created   thereby)   and   (vi) the
Servicer Custodial   Accounts,   the Master Servicer   Custodial   Account,   the Cap
Carryover   Reserve Account and the Certificate   Account and such assets that are
deposited therein from time to time and any investments   thereof,   together with
any and all income,   proceeds and payments   with respect   thereto.   The Buy-Down
Account shall not be part of the Trust Estate.

     Trustee:   U.S. Bank National   Association,   and its   successors-in-interest
and, if a successor trustee is appointed hereunder, such successor, as trustee.

     Uncertificated   Accrued   Interest:   With   respect   to   each   REMIC   Regular
Interest   (other than the Class CE   Upper-Tier   Regular   Interest   and the Class
Swap-IO Upper-Tier Regular Interest) and each Distribution Date, an amount equal
to one month's interest at the related   Pass-Through Rate on the   Uncertificated
Balance of such REMIC Regular Interest.   With respect to the Class CE Upper-Tier
Regular   Interest   on each   Distribution   Date,   an amount   equal to one month's
interest at its Pass-Through   Rate on its Notional   Amount.   In the case of each
<PAGE>

REMIC Regular Interest,   Uncertificated   Accrued Interest will be reduced by any
Relief Act Reductions,   allocated to such REMIC Regular   Interest as provided in
Section 5.02. The Class Swap-IO   Upper-Tier Regular Interest will be entitled to
100% of the amounts distributed on the Class MRI-IO Interest.

     Uncertificated   Balance:   The amount of any REMIC Regular   Interest   (other
than the Class MRI-IO Interest or the Class Swap-IO Upper-Tier Regular Interest)
outstanding   as of any   date   of   determination.   As of the   Closing   Date,   the
Uncertificated   Balance   of each such REMIC   Regular   Interest   shall   equal the
amount   set   forth   in   the    Preliminary    Statement    hereto   as   its   initial
Uncertificated Balance. On each Distribution Date, the Uncertificated Balance of
each such   REMIC   Regular   Interest   shall be reduced   by all   distributions   of
principal made on such REMIC Regular Interest on such Distribution Date pursuant
to Section 5.02 and, if and to the extent   necessary and   appropriate,   shall be
further   reduced on such   Distribution   Date by   Realized   Losses as provided in
Section 5.03. The   Uncertificated   Balance of the Class MRI-ZZ Interest shall be
increased by interest deferrals as provided in Section 5.02. With respect to the
Class MRI-IO Interest and the Class Swap-IO   Upper-Tier   Regular   Interest,   its
Uncertificated Notional Amount. The Uncertificated Balance of each REMIC Regular
Interest shall never be less than zero.

         Uncertificated Lower-Tier Interests: The Uncertificated Lower-Tier
Regular Interests and the Class LR interest, which represents the sole class of
"residual interest" in the Lower-Tier REMIC.

     Uncertificated   Lower-Tier   Regular   Interest:   A regular   interest   in the
Lower-Tier   REMIC   which   is held as an asset of the   Middle-Tier   REMIC   and is
entitled to monthly distributions as provided in Section 5.02 hereof. Any of the
Class LRI-I Interest and the Class LRI-1-A   Interest   through the Class LRI-60-B
Interest are Uncertificated Lower-Tier Regular Interests.

     Uncertificated   Lower-Tier   REMIC   Pass-Through   Rate:   With respect to the
Class LRI-I Interest,   a per annum rate equal to the weighted average of the Net
Mortgage    Interest   Rates   of   the   Mortgage    Loans.    With   respect   to   each
Uncertificated   Lower-Tier   Regular   Interest ending with the designation "A," a
per annum rate equal to the weighted average of the Net Mortgage   Interest Rates
of the Mortgage   Loans   multiplied   by 2, subject to a maximum rate of the Fixed
Payer   Rate   multiplied   by 2. With   respect to each   Uncertificated   Lower-Tier
Regular   Interest ending with the designation "B," a per annum rate equal to the
excess,   if any, of (i) 2 multiplied by the weighted average of the Net Mortgage
Interest Rates of the Mortgage   Loans over (ii) the Fixed Payer Rate   multiplied
by 2 (or 0.00% if there is no such excess).

     Uncertificated    Middle-Tier   Interests:   The   Uncertificated    Middle-Tier
Regular Interests and the Class MR Interest,   which represents the sole class of
"residual interest" in the Middle-Tier REMIC.

     Uncertificated   Middle-Tier   Regular   Interest:   A regular   interest in the
Middle-Tier   REMIC   which   is held as an asset of the   Upper-Tier   REMIC   and is
entitled to monthly distributions as provided in Section 5.02 hereof. Any of the
Class MRI-AA Interest, the Middle-Tier Corresponding Marker Interests, the Class
MRI-ZZ   Interest,   the Class MRI-IO   Interest   and the Class MRI-R   Interest are
Uncertificated Middle-Tier Regular Interests.

<PAGE>

     Uncertificated   Middle-Tier   REMIC   Pass-Through   Rate: With respect to the
Class MRI-AA Interest, the Middle-Tier Corresponding Marker Interests, the Class
MRI-ZZ   Interest   and the Class MRI-R   Interest,   a per annum rate (but not less
than zero) equal to the weighted average of: (x) with respect to the Class LRI-I
Interest and each Uncertificated Lower-Tier Interest ending with the designation
"B," the weighted average of the   Uncertificated   Lower-Tier REMIC   Pass-Through
Rates for such   Uncertificated   Lower-Tier   Regular   Interests,   weighted on the
basis of the Uncertificated   Balances of such Uncertificated   Lower-Tier Regular
Interests for each such Distribution Date and (y) with respect to Uncertificated
Lower-Tier Interests ending with the designation "A," for each Distribution Date
listed   below,   the   weighted   average of the rates   listed   below for each such
Uncertificated   Lower-Tier Regular Interest listed below,   weighted on the basis
of the Uncertificated   Balances of each such Uncertificated   Lower-Tier Interest
for each such Distribution Date:

<TABLE>
<S>      <C>     <C>     <C>     <C>     <C>     <C>

   Distribution
       Date         Uncertificated Lower-Tier Interest                            Rate

         1          LRI-1-A through LRI-60-A             2 multiplied by Swap LIBOR, subject to a maximum rate
                                                       of Uncertificated Lower-Tier REMIC Pass-Through Rate

         2          LRI-2-A through LRI-60-A             2 multiplied by Swap LIBOR, subject to a maximum rate
                                                       of Uncertificated Lower-Tier REMIC Pass-Through Rate

                   LRI-1-A                              Uncertificated Lower-Tier REMIC Pass-Through Rate

         3          LRI-3-A through LRI-60-A             2 multiplied by Swap LIBOR, subject to a maximum rate
                                                       of Uncertificated Lower-Tier REMIC Pass-Through Rate

                   LRI-1-A and LRI-2-A                  Uncertificated Lower-Tier REMIC Pass-Through Rate

         4          LRI-4-A through LRI-60-A             2 multiplied by Swap LIBOR, subject to a maximum rate
                                                       of Uncertificated Lower-Tier REMIC Pass-Through Rate

                   LRI-1-A through LRI-3-A              Uncertificated Lower-Tier REMIC Pass-Through Rate

         5          LRI-5-A through LRI-60-A             2 multiplied by Swap LIBOR, subject to a maximum rate
                                                &nbs