NATIONSBANC MONTGOMERY FUNDING CORP
8-K, 1998-09-02
ASSET-BACKED SECURITIES
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<PAGE>   1





                       SECURITIES AND EXCHANGE COMMISSION
                              WASHINGTON, DC 20549

                                   ----------

                                    FORM 8-K

                                 CURRENT REPORT
                     PURSUANT TO SECTION 13 OR 15(d) OF THE
                         SECURITIES EXCHANGE ACT OF 1934


Date of report (Date of earliest event reported):  August 25, 1998
                                                   ---------------



                      NATIONSBANC MONTGOMERY FUNDING CORP.
- --------------------------------------------------------------------------------
               (Exact Name of Registrant as Specified in Charter)


          Delaware                333-48879                   56-193-0085
- ---------------------------- ----------------------  ---------------------------
(State or Other Jurisdiction  (Commission File             (I.R.S. Employer
     of Incorporation)            Number)                Identification No.)


100 North Tryon Street,  Charlotte, North Carolina                   28255
- --------------------------------------------------------------------------------
(Address of Principal Executive Offices)                          (Zip Code)


Registrant's telephone number, including area code (704) 386-2400
                                                  ------------------------------

- --------------------------------------------------------------------------------
         (Former Name or Former Address, if Changed Since Last Report: )



<PAGE>   2



Item 5.     Other Events

         On August 25, 1998, NationsBanc Montgomery Funding Corp. (the
"Sponsor") entered into a Pooling and Servicing Agreement, dated as of August 1,
1998 (the "Pooling and Servicing Agreement"), by and among, the Sponsor, as
sponsor, NationsBanc Mortgage Corporation, as master servicer (in such capacity,
the "Master Servicer"), and Norwest Bank Minnesota, National Association, as
trustee (the "Trustee"). The Pooling and Servicing Agreement is annexed hereto
as Exhibit 99.1.

         On August 25, 1998, the Sponsor entered into a Mortgage Loan Sale
Agreement, dated as of August 25, 1998 (the "Mortgage Loan Sale Agreement"), by
and between, NationsBanc Mortgage Corporation, as seller (in such capacity, the
"Seller"), and the Sponsor, as purchaser. The Mortgage Loan Sale Agreement is
annexed hereto as Exhibit 99.2.

Item 7.    Financial Statements, Pro Forma Financial Information and Exhibits.

(a)      Not applicable.

(b)      Not applicable.

(c)      Exhibits:

         99.1   The Pooling and Servicing Agreement, dated as of August 1, 1998,
         by and among, the Sponsor, the Master Servicer, and the Trustee,
         providing for the issuance of the Certificates.

         99.2   The Mortgage Loan Sale Agreement, dated as of August 25, 1998, 
         by and between, the Seller and the Purchaser, providing for the sale of
         the Mortgage Loans.






                                       2
<PAGE>   3




                                   SIGNATURES


     Pursuant to the requirements of the Securities Exchange Act of 1934, the
registrant has duly caused this report to be signed on its behalf by the
undersigned hereunto duly authorized.

                                               NATIONSBANC MONTGOMERY
                                                  FUNDING CORP.


                                               By:  /s/ Robert J. Perret
                                                  --------------------------
                                                  Name:  Robert J. Perret
Date:  August 25, 1998                            Title:  Senior Vice President





                                       3
<PAGE>   4



                                  Exhibit Index


Exhibit                                                                   Page
- -------                                                                   ----

99.1     Pooling and Servicing Agreement (without Exhibits)                  5

99.2     Mortgage Loan Sale Agreement (without Exhibits)                   106



                                       4

<PAGE>   1

                                                                    EXHIBIT 99.1

                                                                [EXECUTION COPY]


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



                      NATIONSBANC MONTGOMERY FUNDING CORP.,

                                   as Sponsor,


                        NATIONSBANC MORTGAGE CORPORATION,

                               as Master Servicer,


                                       and


                  NORWEST BANK MINNESOTA, NATIONAL ASSOCIATION,

                                   as Trustee


                         POOLING AND SERVICING AGREEMENT
                           Dated as of August 1, 1998

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


                       Mortgage Pass-Through Certificates
                                  Series 1998-1



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



<PAGE>   2

                                TABLE OF CONTENTS

Section                                                                     Page
- -------                                                                     ----

PRELIMINARY STATEMENT..........................................................1


ARTICLE I  DEFINITIONS.........................................................4

   SECTION 1.01.  Defined Terms................................................4

   SECTION 1.02.  Interest Calculations.......................................27


ARTICLE II  CONVEYANCE OF MORTGAGE LOANS; ORIGINAL ISSUANCE OF
            CERTIFICATES......................................................27

   SECTION 2.01.  Conveyance of Mortgage Loans................................27

   SECTION 2.02.  Acceptance by the Trustee of the Mortgage Loans.............30

   SECTION 2.04.  Representations and Warranties of the Sponsor as 
                  to the Mortgage Loans.......................................34

   SECTION 2.05.  Designation of Interests in REMIC...........................34

   SECTION 2.06.  Designation of Start-up Day.................................35

   SECTION 2.07.  REMIC Certificate Maturity Date.............................35

   SECTION 2.08.  Repurchases for Tax Violations..............................35

   SECTION 2.09.  Execution and Delivery of Certificates......................35


ARTICLE III  ADMINISTRATION AND SERVICING OF MORTGAGE LOANS...................35

   SECTION 3.01.  Master Servicer to Service Mortgage Loans...................35

   SECTION 3.02.  Subservicing; Enforcement of the Obligations of Servicers...36

   SECTION 3.03.  Fidelity Bond; Errors and Omissions Insurance...............37

   SECTION 3.04.  Access to Certain Documentation.............................38

   SECTION 3.05.  Maintenance of Primary Mortgage Insurance Policy; Claims....38

   SECTION 3.06.  Rights of the Sponsor and the Trustee in Respect
                  of the Master Servicer......................................39

   SECTION 3.07.  Trustee to Act as Master Servicer...........................39

   SECTION 3.08.  Collection of Mortgage Loan Payments; Collection 
                  Account and Distribution Account............................40

   SECTION 3.09.  Collection of Taxes, Assessments and Similar Items; 
                  Escrow Accounts.............................................42



                                       i
<PAGE>   3

   SECTION 3.10.  Access to Certain Documentation and Information 
                  Regarding the Mortgage Loans................................43

   SECTION 3.11.  Permitted Withdrawals from the Collection Account and 
                  Distribution Account........................................44

   SECTION 3.12.  Maintenance of Hazard Insurance.............................45

   SECTION 3.13.  Enforcement of Due-On-Sale Clauses; Assumption Agreements...46

   SECTION 3.14.  Realization Upon Defaulted Mortgage Loans; REO Property.....47

   SECTION 3.15.  Trustee to Cooperate; Release of Mortgage Files.............49

   SECTION 3.16.  Documents, Records and Funds in Possession of the 
                  Master Servicer to be Held for the Trustee..................50

   SECTION 3.17.  Servicing Compensation......................................51

   SECTION 3.18.  Annual Statement as to Compliance...........................51

   SECTION 3.19.  Annual Independent Public Accountants' Servicing 
                  Statement; Financial Statements.............................51

   SECTION 3.20.  Advances....................................................52

   SECTION 3.21.  Modifications, Waivers, Amendments and Consents.............52

   SECTION 3.22.  Reports to the Securities and Exchange Commission...........53


ARTICLE IV  MASTER SERVICER'S CERTIFICATE.....................................54

   SECTION 4.01.  Master Servicer's Certificate...............................54



ARTICLE V  PAYMENTS AND STATEMENTS TO CERTIFICATEHOLDERS; 
           REMIC ADMINISTRATION...............................................54

   SECTION 5.01.  Distributions...............................................54

   SECTION 5.02.  Priorities of Distribution..................................55

   SECTION 5.05.  Tax Returns and Reports to Certificateholders...............62

   SECTION 5.06.  Tax Matters Person..........................................62

   SECTION 5.07.  Rights of the Tax Matters Person in Respect of the Trustee..62

   SECTION 5.08.  REMIC Related Covenants.....................................63

   SECTION 5.09.  Determination of Pass-Through Rates for LIBOR Certificates..64



ARTICLE VI  THE CERTIFICATES..................................................65


                                       ii
<PAGE>   4

   SECTION 6.01.  The Certificates............................................65

   SECTION 6.02.  Registration of Transfer and Exchange of Certificates.......65

   SECTION 6.03.  Mutilated, Destroyed, Lost or Stolen Certificates...........70

   SECTION 6.04.  Persons Deemed Owners.......................................70



ARTICLE VII  THE SPONSOR AND THE MASTER SERVICER..............................70

   SECTION 7.01.  Respective Liabilities of the Sponsor and 
                  the Master Servicer.........................................70

   SECTION 7.02.  Merger or Consolidation of the Sponsor or 
                  the Master Servicer.........................................70

   SECTION 7.03.  Limitation on Liability of the Sponsor, the 
                  Master Servicer and Others..................................71

   SECTION 7.04.  Sponsor and Master Servicer Not to Resign...................71



ARTICLE VIII  DEFAULT.........................................................72

   SECTION 8.01.  Events of Default...........................................72

   SECTION 8.02.  Remedies of Trustee.........................................73

   SECTION 8.03.  Directions by Certificateholders and Duties of 
                  Trustee During Event of Default.............................74

   SECTION 8.04.  Action upon Certain Failures of the Master Servicer
                  and upon Event of Default...................................74

   SECTION 8.05.  Trustee to Act; Appointment of Successor....................74

   SECTION 8.06.  Notification to Certificateholders..........................75



ARTICLE IX  THE TRUSTEE.......................................................76

   SECTION 9.01.  Duties of Trustee...........................................76

   SECTION 9.02.  Certain Matters Affecting the Trustee.......................77

   SECTION 9.03.  Trustee Not Liable for Certificates or Mortgage Loans.......78

   SECTION 9.04.  Trustee May Own Certificates................................79

   SECTION 9.05.  Eligibility Requirements for Trustee........................79

   SECTION 9.06.  Resignation and Removal of Trustee..........................79

   SECTION 9.07.  Successor Trustee...........................................80

   SECTION 9.08.  Merger or Consolidation of Trustee..........................80

   SECTION 9.09.  Appointment of Co-Trustee or Separate Trustee...............81


                                      iii
<PAGE>   5

   SECTION 9.10.  Authenticating Agents.......................................82

   SECTION 9.11.  Trustee's Fees and Expenses.................................82

   SECTION 9.12.  Tax Returns.................................................83

   SECTION 9.13.  Paying Agents...............................................83

   SECTION 9.14.  Limitation of Liability.....................................84

   SECTION 9.15   Trustee May Enforce Claims Without Possession 
                  of Certificates.............................................84

   SECTION 9.16   Suits for Enforcement.......................................84

   SECTION 9.17   Waiver of Bond Requirement..................................84

   SECTION 9.18   Waiver of Inventory, Accounting and Appraisal Requirement...84

   SECTION 9.19   Year 2000 Compliance........................................85



ARTICLE X  TERMINATION........................................................85

   SECTION 10.01. Termination upon Purchase by the Sponsor or 
                  Liquidation of All Mortgage Loans...........................85

   SECTION 10.02. Additional Termination Requirements.........................86



ARTICLE XI  MISCELLANEOUS PROVISIONS..........................................87

   SECTION 11.01. Amendment...................................................87

   SECTION 11.02. Recordation of Agreement....................................88

   SECTION 11.03. Limitation on Rights of Certificateholders..................89

   SECTION 11.04. Governing Law...............................................89

   SECTION 11.05. Notices.....................................................89

   SECTION 11.06. Severability of Provisions..................................90

   SECTION 11.07. Certificates Nonassessable and Fully Paid...................90

   SECTION 11.08. Access to List of Certificateholders........................90



                                       iv
<PAGE>   6


                                    EXHIBITS

Exhibit A    Form of Face of Senior Certificates.............................A-1

Exhibit B    Form of Face of Residual Certificates...........................B-1

Exhibit C    Form of Face of Subordinate Certificate.........................C-1

Exhibit D    Form of Reverse of all Certificates.............................D-1

Exhibit E    Mortgage Loan Schedule..........................................E-1

Exhibit F    Request for Release of Documents................................F-1

Exhibit G    Form of Certification of Establishment of Account...............G-1

Exhibit H    [RESERVED]

Exhibit I-1  Form of Transferor's Certificate..............................I-1-1

Exhibit I-2A Form 1 of Transferee's Certificate...........................I-2A-1

Exhibit I-2B Form 2 of Transferee's Certificate...........................I-2B-1

Exhibit J    Form of Residual Certificate Affidavit..........................J-1

Exhibit K    Form of Investment Letter.......................................K-1

Exhibit L    Contents of Servicing File......................................L-1

Exhibit M    Form of Initial Certification...................................M-1

Exhibit N    Form of Final Certification.....................................N-1



                                       v
<PAGE>   7

                         POOLING AND SERVICING AGREEMENT


         THIS POOLING AND SERVICING AGREEMENT, dated as of August 1, 1998, is
hereby executed by and among NATIONSBANC MONTGOMERY FUNDING CORP., as sponsor
(together with its permitted successors and assigns, the "Sponsor"), NATIONSBANC
MORTGAGE CORPORATION, as master servicer (together with its permitted successors
and assigns, the "Master Servicer") and NORWEST BANK MINNESOTA, NATIONAL
ASSOCIATION, as trustee (together with its permitted successors and assigns, the
"Trustee").

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

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

                              PRELIMINARY STATEMENT

         In exchange for the Certificates, the Sponsor hereby conveys the Trust
Fund to the Trustee to create the Trust. The Trust Fund for federal income tax
purposes will be treated as two REMICs. The "Subsidiary REMIC" will consist of
all of the assets constituting the Trust Fund and will be evidenced by the
Subsidiary REMIC Regular Interests (which will be uncertificated and will
represent the "regular interests" in the Subsidiary REMIC) and the Class R-I
Certificates as the single "residual interest" in the Subsidiary REMIC. The
Trustee will hold the Subsidiary REMIC Regular Interests. The "Master REMIC"
will consist of the Subsidiary REMIC Regular Interests and will be evidenced by
the Regular Certificates (which will represent the "regular interests" in the
Master REMIC) and the Class R-II Certificate as the single "residual interest"
in the Master REMIC. The Certificates will represent the entire beneficial
ownership interest in the Trust. The "latest possible maturity date" for federal
income tax purposes of all interests created hereby will be the Latest Possible
Maturity Date.

         The following table sets forth characteristics of the Certificates,
together with the minimum denominations and integral multiples in excess thereof
in which such Classes shall be issuable (except that one Certificate of each
Class of Certificates may be issued in any amount in excess of the minimum
denomination):


<PAGE>   8


<TABLE>
<CAPTION>

=================================================================================================================
                          Initial                                                          Integral Multiples
                     Class Certificate                                   Minimum                in Excess
                          Balance            Pass-Through Rate         Denomination            of Minimum
- -----------------------------------------------------------------------------------------------------------------
<S>                  <C>                     <C>                       <C>                 <C>
Class A-1                 $164,351,856.00                  6.75%                  $1,000                      $1
- -----------------------------------------------------------------------------------------------------------------
Class A-2                  $25,000,000.00                  6.50%                  $1,000                      $1
- -----------------------------------------------------------------------------------------------------------------
Class A-3                  $60,896,001.00                  6.50%                  $1,000                      $1
- -----------------------------------------------------------------------------------------------------------------
Class A-4                  $25,000,000.00                  7.25%                  $1,000                      $1
- -----------------------------------------------------------------------------------------------------------------
Class A-5                   $5,357,143.00           (1)                          $25,000                      $1
- -----------------------------------------------------------------------------------------------------------------
Class A-6                   (2)                     (2)                       $25,000(3)                      $1
- -----------------------------------------------------------------------------------------------------------------
Class A-7                  $10,000,000.00                  6.75%                  $1,000                      $1
- -----------------------------------------------------------------------------------------------------------------
Class A-8                  $50,000,000.00                  6.75%                  $1,000                      $1
- -----------------------------------------------------------------------------------------------------------------
Class A-9                  $75,000,000.00                  6.75%                  $1,000                      $1
- -----------------------------------------------------------------------------------------------------------------
Class A-10                  $1,604,000.00                  6.50%                  $1,000                      $1
- -----------------------------------------------------------------------------------------------------------------
Class A-11                 $41,794,000.00                  6.75%                  $1,000                      $1
- -----------------------------------------------------------------------------------------------------------------
Class A-12                  $4,381,000.00                  7.00%                  $1,000                      $1
- -----------------------------------------------------------------------------------------------------------------
Class A-13                  $6,981,000.00                  7.00%                  $1,000                      $1
- -----------------------------------------------------------------------------------------------------------------
Class A-14                 $11,362,000.00                  6.50%                  $1,000                      $1
- -----------------------------------------------------------------------------------------------------------------
Class A-15                 $10,000,000.00                  6.75%                  $1,000                      $1
- -----------------------------------------------------------------------------------------------------------------
Class A-16                 $56,700,000.00                  6.75%                  $1,000                      $1
- -----------------------------------------------------------------------------------------------------------------
Class A-PO                  $1,544,110.41           (4)                          $25,000                      $1
- -----------------------------------------------------------------------------------------------------------------
Class R-I                         $100.00                  6.75%                    $100                     N/A
- -----------------------------------------------------------------------------------------------------------------
Class R-II                        $100.00                  6.75%                    $100                     N/A
- -----------------------------------------------------------------------------------------------------------------
Class B-1                 $ 10,884,853.00                  6.75%                 $25,000                      $1
- -----------------------------------------------------------------------------------------------------------------
Class B-2                   $4,902,089.82                  6.75%                 $25,000                      $1
- -----------------------------------------------------------------------------------------------------------------
Class B-3                   $2,577,992.00                  6.75%                 $25,000                      $1
- -----------------------------------------------------------------------------------------------------------------
Class B-4                   $2,005,105.00                  6.75%                 $25,000                      $1
- -----------------------------------------------------------------------------------------------------------------
Class B-5                   $1,145,774.00                  6.75%                 $25,000                      $1
- -----------------------------------------------------------------------------------------------------------------
Class B-6                   $1,432,381.60                  6.75%                 $25,000                      $1
=================================================================================================================
</TABLE>
- ---------------
(1)      The Class A-5 Certificates will bear interest at 6.05625% per annum
         during the first Interest Accrual Period. During each subsequent
         Interest Accrual Period, the Class A-5 Certificates will bear interest
         at the per annum rate equal to the sum of (a) LIBOR and (b) 0.40%,
         subject to a minimum Pass-Through Rate of 0.40% per annum and a maximum
         Pass-Through Rate of 8.50% per annum.

(2)      The Class A-6 Certificates will be Notional Amount Certificates, will
         have no Class Certificate Balance and will bear interest on the Class
         A-6 Notional Amount at 2.44375% per annum during the first Interest
         Accrual Period. During each subsequent Interest Accrual Period, the
         Class A-6 Certificates will bear interest at the per annum rate equal
         to the excess of (a) 8.10% per annum over (b) LIBOR, subject to a
         minimum Pass-Through Rate of 0% and a maximum Pass-Through Rate of
         8.10% per annum.

(3)      The minimum denomination is based on the Notional Amount.

(4)      The Class A-PO Certificates will be Principal-Only Certificates and
         will not bear interest.

                                       2


<PAGE>   9

         Principal of and interest on the Subsidiary REMIC Regular Interests and
the Class R-I Certificates shall be allocated to the Corresponding Classes of
Certificates in the manner set forth in the following table:

                     Corresponding Class of Certificates (1)

<TABLE>
<CAPTION>

   Subsidiary REMIC      Initial Principal          Interest               Allocation              Allocation
       Interest               Balance                  Rate               of Principal             of Interest
       --------               -------                --------             ------------             -----------
   <C>                   <C>                        <C>                   <C>                      <C>
          1                  $164,351,856.00          6.75%                    A-1                     A-1
          2                   $25,000,000.00          6.50%                    A-2                     A-2
          3                   $60,896,001.00          6.50%                    A-3                     A-3
          4                   $25,000,000.00          7.25%                    A-4                     A-4
          5                    $5,357,143.00          8.50%                    A-5                A-5, A-6 (2)
          6                   $10,000,000.00          6.75%                    A-7                     A-7
          7                   $50,000,000.00          6.75%                    A-8                     A-8
          8                   $75,000,000.00          6.75%                    A-9                     A-9
          9                    $1,604,000.00          6.50%                   A-10                    A-10
          10                  $41,794,000.00          6.75%                   A-11                    A-11
          11                   $4,381,000.00          7.00%                   A-12                    A-12
          12                   $6,981,000.00          7.00%                   A-13                    A-13
          13                  $11,362,000.00          6.50%                   A-14                    A-14
          14                  $10,000,000.00          6.75%                   A-15                    A-15
          15                  $56,700,000.00          6.75%                   A-16                    A-16
          16                   $1,544,110.41           (3)                    A-PO                     --
          17                  $10,884,853.00          6.75%                    B-1                     B-1
          18                   $4,902,089.82          6.75%                    B-2                     B-2
          19                   $2,577,992.00          6.75%                    B-3                     B-3
          20                   $2,005,105.00          6.75%                    B-4                     B-4
          21                   $1,145,774.00          6.75%                    B-5                     B-5
          22                   $1,432,381.60          6.75%                    B-6                     B-6
         R-I                         $100.00          6.75%                    R-I                     R-I
          23                         $100.00          6.75%                   R-II                    R-II

</TABLE>
- ---------------------- 

(1)      The amount of principal and, except in the case of Subsidiary REMIC
         Regular Interest 16, interest allocable from a Subsidiary REMIC Regular
         Interest to its Corresponding Class or Classes of Certificates on any
         Distribution Date shall be 100%.

(2)      Interest on Subsidiary REMIC Regular Interest 5 shall be allocated to
         the Class A-5 Certificates and the Class A-6 Certificates on a pro rata
         basis in accordance with their respective Pass-Through Rates.

(3)      Subsidiary REMIC Regular Interest 16 will be a principal-only
         Subsidiary REMIC Regular Interest and will not bear interest.

                                       3
<PAGE>   10


                                    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.

         1933 Act: As defined in Section 6.02.

         Accrued Certificate Interest: For any Distribution Date and each
interest-bearing Class, one month's interest accrued during the related Interest
Accrual Period at the applicable Pass-Through Rate on the applicable Class
Certificate Balance or Notional Amount.

         Advance:  A Monthly Advance or a Servicing Advance.

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

         Amount Available for Senior Principal: As to any Distribution Date,
Available Funds for such Distribution Date reduced by the aggregate amount
distributable on such Distribution Date in respect of interest on the Senior
Certificates (other than the Class A-PO Certificates) pursuant to Section
5.02(a)(i).

         Amount Held for Future Distribution: As to any Distribution Date, the
total of the amounts held in the Collection Account at the close of business on
the preceding Determination Date on account of (i) Principal Prepayments and
Liquidation Proceeds received or made in the month of such Distribution Date and
(ii) payments which represent receipt of Monthly Payments in respect of a Due
Date or Due Dates subsequent to the related Due Date.

         Appraised Value: With respect to any Mortgaged Property, the lesser of
(i) the value thereof as determined by an appraisal made for the originator of
the Mortgage Loan at the time of origination of the Mortgage Loan by an
appraiser who met the minimum requirements of FNMA or FHLMC, and (ii) the
purchase price paid for the related Mortgaged Property by the Mortgagor with the
proceeds of the Mortgage Loan; provided, however, that in the case of a
Refinanced Mortgage Loan, such value of the Mortgaged Property is based solely
upon the value determined by an appraisal made for the originator of such
Refinanced Mortgage Loan at the time of origination of such Refinanced Mortgaged
Loan by an appraiser who met the minimum requirements of FNMA or FHLMC.

         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.

         Authenticating Agents:  As defined in Section 9.10.

                                       4
<PAGE>   11

         Available Funds: As to any Distribution Date, the excess of (a) the sum
of (i) the aggregate of (A) the interest portion of any Monthly Payment (net of
the Master Servicing Fee) and the principal portion of any Monthly Payment due
on the Due Date in the month in which such Distribution Date occurs and which is
received prior to the related Determination Date and (B) all Monthly Advances
and payments of Compensating Interest made by the Master Servicer in respect of
such Distribution Date deposited to the Collection Account pursuant to Section
3.08(b)(vii); (ii) all Liquidation Proceeds received during the preceding
calendar month and deposited to the Collection Account pursuant to Section
3.08(b)(iii); (iii) all Principal Prepayments received during the month
preceding the month of such Distribution Date and deposited to the Collection
Account pursuant to Section 3.08(b) (i) during such period; (iv) in connection
with Defective Mortgage Loans, as applicable, the aggregate of the Purchase
Prices and Substitution Adjustment Amounts deposited on the related Distribution
Account Deposit Date pursuant to Section 3.08(b)(vi); and (v) any other amounts
in the Collection Account deposited therein pursuant to Sections 3.08(b)(iv),
(v) and (viii) in respect of such Distribution Date; over (b) any (i) amounts
permitted to be withdrawn from the Collection Account pursuant to clauses (i)
through (vii), inclusive, of Section 3.11(a) and (ii) amounts permitted to be
withdrawn from the Distribution Account pursuant to clauses (i) and (ii) of
Section 3.11(b).

         Bankruptcy Loss:  Any Deficient Valuation or Debt Service Reduction.

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

         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
Maryland, the state in which the principal servicing office of the Master
Servicer is located or the state in which the Corporate Trust Office is located
are required or authorized by law or executive order to be closed.

         Certificate:  Any of the NationsBanc Montgomery Funding Corp. Mortgage 
Pass-Through Certificates, Series 1998-1 that are issued pursuant to this
Agreement.

         Certificate Balance: With respect to any Certificate (other than a
Notional Amount Certificate) at any date, the maximum dollar amount of principal
to which the Holder thereof is then entitled hereunder, such amount being equal
to the amount set forth on the face thereof minus the sum of (i) all
distributions of principal previously made with respect thereto and (ii) all
Realized Losses allocated thereto and, in the case of any Subordinate
Certificates, all other reductions in Certificate Balance previously allocated
thereto pursuant to Section 5.03.

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

         Certificate Register:  The register maintained pursuant to Section
6.02.

         Certificate Registrar: The registrar appointed pursuant to Section
6.02.

                                       5
<PAGE>   12

         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 Sponsor, 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 the Trustee shall not be
responsible for knowing that any Certificate is registered in the name of such
an affiliate unless one of its Responsible Officers has actual knowledge.

         Class: As to the Certificates, the Class A-1, Class A-2, Class A-3,
Class A-4, Class A-5, Class A-6, Class A-7, Class A-8, Class A-9, Class A-10,
Class A-11, Class A-12, Class A-13, Class A-14, Class A-15, Class A-16, Class
A-PO, Class R-I, Class R-II, Class B-1, Class B-2, Class B-3, Class B-4, Class
B-5 and Class B-6 Certificates, as the case may be.

         Class A Certificates: The Class A-1, Class A-2, Class A-3, Class A-4,
Class A-5, Class A-6, Class A-7, Class A-8, Class A-9, Class A-10, Class A-11,
Class A-12, Class A-13, Class A-14, Class A-15, Class A-16 and Class A-PO
Certificates.

         Class A-6 Notional Amount: For any Distribution Date and the Class A-6
Certificates, the Class Certificate Balance of the Class A-5 Certificates
immediately prior to such date.

         Class A-16 Percentage: As to any Distribution Date, the percentage
equivalent (carried to six places rounded up) of a fraction the numerator of
which is the Class Certificate Balance of the Class A-16 Certificates
immediately prior to such date and the denominator of which is the aggregate of
the Class Certificate Balances of all Classes of Certificates (other than the
Class A-PO Certificates) immediately prior to such date.

         Class A-16 Principal Distribution Amount: As to any Distribution Date
(i) occurring in or prior to August 2003, zero and (ii) occurring in September
2003 or thereafter, the lesser of (a) the Class Certificate Balance of the Class
A-16 Certificates and (b) the sum of (1) the Class A-16 Percentage of all
amounts described in clause (i) of the definition of "Senior Principal
Distribution Amount" (but without such amounts being multiplied by the Senior
Percentage) and (2) the product of (A) the Class A-16 Shift Percentage, (B) the
Class A-16 Percentage and (C) all amounts described in clauses (ii) and (iii) of
the definition of "Senior Principal Distribution Amount" (but without such
amounts being multiplied by the Senior Percentage or the Senior Prepayment
Percentage, as the case may be).

         Class A-16 Shift Percentage:  For any Distribution Date, the percentage
set forth below:

                                                                    Class A-16
Distribution Date Occurring In                                  Shift Percentage
- ------------------------------                                  ----------------

September 2003 through August 2004...................................   30%
September 2004 through August 2005...................................   40%
September 2005 through August 2006...................................   60%

                                       6
<PAGE>   13

September 2006 through August 2007...................................   80%
September 2007 and thereafter........................................  100%

         Class A-PO Deferred Amount: As to any Distribution Date prior to the
Senior Credit Support Depletion Date, the aggregate of the applicable PO
Percentage of each Realized Loss, other than an Excess Loss, to be allocated to
the Class A-PO Certificates on such Distribution Date or previously allocated to
the Class A-PO Certificates and not yet paid to the Holders of the Class A-PO
Certificates pursuant to Section 5.02(a)(iii).

         Class B Certificates:  The Class B-1, Class B-2, Class B-3, Class B-4,
Class B-5 and Class B-6 Certificates.

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

         Class Interest Shortfall: For any Distribution Date and each
interest-bearing Class, the amount by which Accrued Certificate Interest for
such Class (as reduced pursuant to Section 5.02(c)) exceeds the amount of
interest actually distributed on such Class on such Distribution Date.

         Class R Certificates:  The Class R-I and Class R-II Certificates.

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

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

         Closing Date:  August 25, 1998.

         Code:  The Internal Revenue Code of 1986, as the same may be amended
from time to time.

         Collection Account: The separate Eligible Account or Accounts created
and maintained by the Master Servicer pursuant to Section 3.08(b) in the name of
the Master Servicer for the benefit of the Certificateholders and designated
"Norwest Bank Minnesota, National Association, as trustee for the registered
holders of NationsBanc Montgomery Funding Corp. Mortgage Pass-Through
Certificates, Series 1998-1."

         Compensating Interest:  As defined in Section 3.17.

         Corporate Trust Office: The principal office of the Trustee at which at
any particular time its certificate transfer services are conducted, which
office at the date of the execution of this

                                       7
<PAGE>   14

instrument is located at Norwest Center, Sixth Street and Marquette Avenue,
Minneapolis, Minnesota 55479-0113.

         Corresponding Class of Certificates: With respect to each Subsidiary
REMIC Interest, any Class of Certificates appearing opposite such Subsidiary
REMIC Interest in the Preliminary Statement.

         Credit Support Percentage:  As defined in Section 5.02(d).

         Current Bankruptcy Coverage Amount: As of any Distribution Date, the
Initial Bankruptcy Coverage Amount less the aggregate amount of Bankruptcy
Losses previously incurred during the period from the Cut-Off Date through the
last day of the month preceding the month of such Distribution Date; provided,
however, that such amount may be reduced from time to time with the written
consent of the Rating Agencies without resulting in a downgrading to the current
rating of the Certificates.

         Custodian:  Any Custodian appointed by the Trustee in accordance with 
the terms of this Agreement.

         Customary Servicing Procedures: Procedures (including collection
procedures) that the Master 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.

         Cut-Off Date:  August 1, 1998.

         Cut-Off Date Pool Principal Balance:  The aggregate of the Cut-Off Date
 Principal Balances of the Mortgage Loans which is $572,919,505.83.

         Cut-Off Date Principal Balance: As to any Mortgage Loan, the unpaid
principal balance thereof as of the close of business on the Cut-Off Date,
reduced by all installments of principal due on or prior thereto whether or not
paid.

         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
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 Master 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 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 Master
Servicer in accordance with the terms of such Mortgage Loan as in effect on the
Cut-Off Date.

                                       8
<PAGE>   15

         Debt Service Reduction Mortgage Loan:  Any Mortgage Loan that became 
the subject of a Debt Service Reduction.

         Defective Mortgage Loan:  Any Mortgage Loan which is required to be 
cured, repurchased or substituted for pursuant to Sections 2.02 , 2.03 or 2.08.

         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 Master 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 Master
Servicer in accordance with the terms of such Mortgage Loan as in effect on the
Cut-Off Date.

         Deficient Valuation Mortgage Loan:  Any Mortgage Loan that became the 
subject of a Deficient Valuation.

         Definitive Certificates:  As defined in Section 6.02.

         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.

         Determination Date:  As to any Distribution Date, the fifth Business
Day preceding such Distribution Date.

         Discount Mortgage Loan:  Any Mortgage Loan with a Net Mortgage Rate 
that is less than 6.75% per annum.

         Distribution Account: The separate Eligible Account created and
maintained by the Trustee pursuant to Section 3.08(c) in the name of the Trustee
for the benefit of the Certificateholders and designated "Norwest Bank
Minnesota, National Association, in trust for registered holders of NationsBanc
Montgomery Funding Corp. Mortgage Pass-Through Certificates, Series 1998-1."
Funds in the Distribution Account shall be held in trust for the
Certificateholders for the uses and purposes set forth in this Agreement.

                                       9
<PAGE>   16
         Distribution Account Deposit Date: As to any Distribution Date, 12:30
p.m. Eastern time on the Business Day immediately preceding such Distribution
Date.

         Distribution Date:  The 25th day of each month beginning in September 
1998 (or, if such day is not a Business Day, the next Business Day).


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

         Eligible Account: Any of (i) an account or accounts maintained with (a)
NationsBank, N.A. or any successor thereto, or (b) a federal or state chartered
depository institution or trust company the short-term unsecured debt
obligations of which (or, in the case of a depository institution or trust
company that is the principal subsidiary of a holding company, the debt
obligations of such holding company) have the highest short-term ratings of 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 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, 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.

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

         ERISA-Restricted Certificate:  The Class B Certificates.

         Escrow Account:  As defined in Section 3.09.

         Escrow Payments: The amounts constituting taxes, assessments, Primary
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.

         Event of Default:  As defined in Section 8.01.

         Excess Losses: For any Distribution Date, the amount of any (i) Fraud
Losses in excess of the Fraud Loss Coverage Amount, (ii) Special Hazard Losses
in excess of the Special Hazard Coverage Amount or (iii) Bankruptcy Losses in
excess of the Current Bankruptcy Coverage Amount.

         Excess Proceeds: With respect to any Liquidated Mortgage Loan, the
amount, if any, by which the sum of any Liquidation Proceeds of such Mortgage
Loan received in the calendar month

                                       10
<PAGE>   17

in which such Mortgage Loan became a Liquidated Mortgage Loan, net of any
amounts previously reimbursed to the Master Servicer as Nonrecoverable
Advance(s) with respect to such Mortgage Loan pursuant to Section 3.11(a)(iii),
exceeds (i) the unpaid principal balance of such Liquidated Mortgage Loan as of
the Due Date in the month in which such Mortgage Loan became a Liquidated
Mortgage Loan plus (ii) accrued interest at the Mortgage Rate from the Due Date
as to which interest was last paid or for which a Monthly 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.

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

         FHLMC:  The Federal Home Loan Mortgage Corporation, or any successor 
thereto.

         Final Certification:  As defined in Section 2.02.

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

         Financial Market Service: Bloomberg Financial Service and any other
financial information provider designated by the Sponsor by written notice to
the Trustee.

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

         Fitch:  Fitch IBCA, Inc., or any successor thereto.

         FNMA:  Fannie Mae, or any successor thereto.

         Fraud Loan:  Any Liquidated Mortgage Loan as to which a Fraud Loss has 
been sustained.

         Fraud Loss: Realized Losses on Mortgage Loans as to which a loss is
sustained by reason of a default arising from fraud, dishonesty or
misrepresentation in connection with the related Mortgage Loan, including a loss
by reason of the denial of coverage under any related Primary Insurance Policy
because of such fraud, dishonesty or misrepresentation.

         Fraud Loss Coverage Amount: The Initial Fraud Loss Coverage Amount as
reduced from time to time by the amount of Fraud Losses allocated to the
Certificates. In addition, on each anniversary of the Cut-Off Date, the Fraud
Loss Coverage Amount will be reduced as follows: (a) on the first, second and
third anniversaries of the Cut-Off Date, to an amount equal to the lesser of (i)
1% of the then-current Pool Stated Principal Balance and (ii) the excess of the
Fraud Loss Coverage Amount as of the preceding anniversary of the Cut-Off Date
(or the Cut-Off Date, in the case of the first anniversary of the Cut-Off Date)
over the cumulative amount of Fraud Losses allocated to the Certificates since
such preceding anniversary; (b) on the fourth and fifth anniversaries of the
Cut-Off Date, to an amount equal to the lesser of (i) 0.5% of the then-current
Pool Stated Principal Balance and (ii) the excess of the Fraud Loss Coverage
Amount as of the preceding anniversary of the Cut-Off Date over the cumulative
amount of Fraud Losses allocated

                                       11
<PAGE>   18

to the Certificates since such preceding anniversary; and (c) on the fifth
anniversary of the Cut-Off Date, to zero.

         Holder:  A Certificateholder.

         Independent: When used with respect to any specified Person means such
a Person who (i) is in fact independent of the Sponsor or the Master Servicer,
(ii) does not have any direct financial interest or any material indirect
financial interest in the Sponsor or the Master Servicer or in an affiliate of
either, and (iii) is not connected with the Sponsor or the Master Servicer as an
officer, employee, promoter, underwriter, trustee, partner, director or person
performing similar functions.

         Initial Bankruptcy Coverage Amount:  $207,394.69.

         Initial Certification:  As defined in Section 2.02.

         Initial Class Certificate Balance: As to each Class of Certificates
(other than the Class A-6 Certificates), the aggregate of the initial
Certificate Balances of all Certificates of such Class, which is set forth in
the Preliminary Statement. As to each Certificate of a Class of Certificates,
the portion of the Initial Class Certificate Balance set forth on the face
thereof.

         Initial Fraud Loss Coverage Amount:  $5,728,869.56.

         Initial LIBOR Rate:  5.65625%.

         Initial Special Hazard Coverage Amount:  $5,730,555.80.

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

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

         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
Certificates (other than the Class A-PO Certificates and the Non-Delay
Certificates), the period from and including the first day of the calendar month
preceding the calendar month of such Distribution Date to but not including the
first day of the calendar month of such Distribution Date. With respect to any
Distribution Date and the Non-Delay Certificates, the period commencing on the
25th day of the calendar month preceding the calendar month in which such
Distribution Date occurs and ending on the 24th day of the calendar month in
which such Distribution Date occurs.

                                       12
<PAGE>   19

         Interest Distribution Amount: For any Distribution Date and each
interest-bearing Class, the sum of (i) Accrued Certificate Interest, subject to
reduction pursuant to Section 5.02(c), and (ii) any Class Unpaid Interest
Shortfall for such Class.

         IRA:  An individual retirement account established under Section 408 of
the Code.

         LIBOR:  The London Interbank Offered Rate for one-month U.S. dollar 
deposits, calculated as set forth in Section 5.09.

         LIBOR 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 Maryland, the state where the Corporate Trust Office is located or in
the City of London, England are required or authorized by law to be closed.

         LIBOR Certificates:  The Class A-5 and Class A-6 Certificates.

         LIBOR Determination Date: As to any Distribution Date (other than the
first Distribution Date), the second LIBOR Business Day prior to the day on
which the related Interest Accrual Period commences.

         Liquidated Mortgage Loan: With respect to any Distribution Date, a
defaulted Mortgage Loan (including any REO Property) that was liquidated in the
calendar month preceding the month of such Distribution Date and as to which the
Master Servicer has certified (in accordance with this 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 Master Servicing Fees and Advances.

         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 the date of
determination and the denominator of which is the Appraised Value of the related
Mortgaged Property.

         LTV:  Loan-to-Value Ratio.

         Master REMIC:  As described in the Preliminary Statement.

         Master Servicer: NationsBanc Mortgage Corporation, a Texas corporation,
or its successor in interest, as Master Servicer, or any successor master
servicer appointed as herein provided.

         Master Servicer Advance Date: As to any Distribution Date, 11:30 a.m.,
Eastern time, on the Business Day immediately preceding such Distribution Date.

                                       13
<PAGE>   20

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

         Master Servicing Fee: With respect to each Mortgage Loan and
Distribution Date, the amount of the fee payable to the Master Servicer, which
shall, for such Distribution Date, be equal to one-twelfth of the product of the
Master Servicing Fee Rate with respect to such Mortgage Loan and the Stated
Principal Balance of such Mortgage Loan, subject to reduction as provided in
Section 3.17. Such fee shall be payable monthly, computed on the basis of the
same Stated Principal Balance and period respecting which any related interest
payment on a Mortgage Loan is computed. The Master Servicer's right to receive
the Master Servicing Fee is limited to, and payable solely from, the interest
portion (including recoveries with respect to interest from Liquidation Proceeds
and other proceeds, to the extent permitted by Section 3.11) of related Monthly
Payments collected by the Master Servicer, or as otherwise provided under
Section 3.11.

         Master Servicing Fee Rate: With respect to each Mortgage Loan, the per
annum rate equal to (i) the related Mortgage Rate less (ii) the sum of 6.75% and
the Trustee Fee Rate; provided, however, that the Master Servicing Fee Rate will
not be less than 0.25% per annum with respect to any Mortgage Loan.

         Monthly Advance: The payment required to be made by the Master Servicer
with respect to any Distribution Date pursuant to Section 3.20, the amount of
any such payment being equal to the aggregate of Monthly Payments (net of the
Master Servicing Fee) on the Mortgage Loans (including any REO Property) that
were due on the related Due Date and not received as of the close of business on
the related Determination Date, less the aggregate amount of any such delinquent
payments that the Master Servicer has determined would constitute a
Nonrecoverable Advance if advanced.

         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 affects the amount of the
monthly payment due on such Mortgage Loan.

         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 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 Fund (including any Substitute Mortgage Loans and REO Property), the
Mortgage Loans originally so held being identified in the Mortgage Loan
Schedule.

         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

                                       14
<PAGE>   21

Defective Mortgage Loans pursuant to the provisions of this Agreement)
transferred to the Trustee as part of the Trust Fund and from time to time
subject to this Agreement, attached hereto as Exhibit E, 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; (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; and (xv) the Appraised Value. 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 Rate of the Mortgage Loans;
and (iv) the weighted average months to maturity of the Mortgage Loans.

         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.

         Mortgage 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 terms of the related Mortgage Note.

         Mortgaged Property:  The underlying property securing a Mortgage Loan.

         Mortgagor:  The obligor on a Mortgage Note.

         Net Mortgage Rate: As to any Mortgage Loan and Distribution Date, such
Mortgage Loan's Mortgage Rate thereon on the first day of the month preceding
the month of the related Distribution Date reduced by the related Master
Servicing Fee Rate and Trustee Fee Rate.

         Net Prepayment Interest Shortfalls: As to any Distribution Date, the
amount, if any, by which the aggregate of Prepayment Interest Shortfalls exceeds
Compensating Interest for such Distribution Date.

         Non-Delay Certificates:  The Class A-5 and Class A-6 Certificates.

         Non-PO Principal Amount: As to any Distribution Date, the sum of the
applicable Non-PO Percentage of (a) the principal portion of each Monthly
Payment (without giving effect, prior to the reduction of the Current Bankruptcy
Coverage Amount to zero, to any reductions thereof caused by any Debt Service
Reductions) due on each Mortgage Loan on the related Due Date, (b) the Stated


                                       15
<PAGE>   22

Principal Balance of each Mortgage Loan that was repurchased by the Seller or
the Sponsor pursuant to this Agreement as of such Distribution Date, (c) any
Substitution Adjustment Amount in connection with a Defective Mortgage Loan
received with respect to such Distribution Date, (d) any Liquidation Proceeds
allocable to recoveries of principal of Mortgage Loans that are not yet
Liquidated Mortgage Loans received during the calendar month preceding the month
of such Distribution Date, (e) with respect to each Mortgage Loan that became a
Liquidated Mortgage Loan during the calendar month preceding the month of such
Distribution Date, the amount of Liquidation Proceeds allocable to principal
received during the calendar month preceding the month of such Distribution Date
with respect to such Mortgage Loan and (f) all Principal Prepayments received
during the calendar month preceding such Distribution Date.

         Non-PO Percentage: As to any Discount Mortgage Loan, a fraction
(expressed as a percentage) the numerator of which is the Net Mortgage Rate of
such Discount Mortgage Loan and the denominator of which is 6.75%. As to any
Mortgage Loan that is not a Discount Mortgage Loan, 100%.

         Non-U.S. Person: An individual, corporation, partnership or other
Person other than a citizen or resident of the United States, a corporation,
partnership or other entity created or organized in or under the laws of the
United States or any political subdivision thereof, an estate that is subject to
U.S. federal income tax regardless of the source of its income, or a trust if a
court within the United States is able to exercise primary supervision over the
administration of the trust and one or more U.S. Persons have the authority to
control all substantial decisions of the trust.

         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 Master Servicer, will
not or, in the case of a proposed Advance, would not be ultimately recoverable
from the related Mortgagor, related Liquidation Proceeds, or other recoveries in
respect of the related Mortgage Loan. The determination by the Master Servicer
that it has made a Nonrecoverable Advance or that any proposed Advance, if made,
would constitute a Nonrecoverable Advance, shall be evidenced by a certificate
of a Servicing Officer of the Master Servicer delivered to the Trustee and the
Sponsor and detailing the reasons for such determination.

         Notional Amount: With respect to the Class A-6 Certificates
collectively, the Class A-6 Notional Amount or, with respect to a single Class
A-6 Certificate, the notional amount set forth on the face of such Certificate.

         Notional Amount Certificates: Any Class of Certificates entitled to
distributions of interest, but to no distributions of principal. The Class A-6
Certificates are the sole Class of Notional Amount Certificates.

         Offered Certificates:  The Class A, Class B-1, Class B-2, Class B-3 and
Class R Certificates.

         Officer's Certificate: A certificate signed by the Chairman of the
Board, Vice Chairman of the Board, President, 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 Sponsor or the Master
Servicer, as the case may be, and delivered to the Trustee.

                                       16
<PAGE>   23

         Opinion of Counsel: A written opinion of counsel acceptable to the
Trustee, who may be counsel for the Sponsor or the Master Servicer, except that
any opinion of counsel relating to the qualification of the Trust Fund as a
REMIC or compliance with the REMIC Provisions must be an opinion of Independent
counsel.

         Original Credit Support Percentage: With respect to each of the
following Classes of Subordinate Certificates, the corresponding percentage
described below, as of the Closing Date:

                           Class B-1                 2.11%
                           Class B-2                 1.25%
                           Class B-3                 0.80%
                           Class B-4                 0.45%
                           Class B-5                 0.25%
                           Class B-6                 0.00%

         Original Mortgage Loans: The Mortgage Loans identified in Exhibit E
hereto, and conveyed, transferred, sold and assigned to, and deposited with, the
Trustee pursuant to Section 2.01 hereof on the Closing Date.

         Original Subordinate Certificate Balance:  $22,948,205.42.

         OTS:  The Office of Thrift Supervision.

         Outstanding Mortgage Loan: As to any Due Date, a Mortgage Loan which
was not the subject of a Principal Prepayment in Full prior to such Due Date,
which did not become a Liquidated Mortgage Loan prior to such Due Date and which
was not purchased from the Trust prior to such Due Date pursuant to Sections
2.02, 2.03 or 2.08.

         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:  As to each Class of interest-bearing Certificates, 
the per annum rate set forth or described in the Preliminary Statement.

         Percentage Interest: As to any Certificate, the percentage obtained by
dividing the initial Certificate Balance or Notional Amount, as applicable, of
such Certificate by the initial Class Certificate Balance or Notional Amount, as
applicable, of all Certificates of the same Class.

         Permitted Investments:  One or more of the following:

                  (i) obligations of or guaranteed as to principal and interest
         by the United States, FHLMC, FNMA 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
         FHLMC or FNMA shall be limited to senior debt obligations and mortgage


                                       17
<PAGE>   24

         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 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 "A-1" by S&P and "F-1"
         by Fitch;

                  (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 "A-1" by S&P and "F-1" by Fitch;

                  (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 "A-1"
         by S&P and "F-1" by Fitch;

                  (v) investments in money market funds (including funds of the
         Trustee or its affiliates, or funds for which an affiliate of the
         Trustee acts as advisor, as well as funds for which the Trustee and its
         affiliates may receive compensation) rated either "AAAm" or "AAAm G" by
         S&P, and "AAA" by Fitch or otherwise approved in writing by the 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, will not affect the qualification of either of
         the REMICs 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 electric and telephone cooperatives described in Code Section
1381(a)(2)(C), (v) any Non-U.S. Person and (vi) any other Person so designated
by the Master Servicer 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

                                       18
<PAGE>   25

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 A-PO, Class B and Class R 
Certificates.

         PO Percentage:  As to any Discount Mortgage Loan, 100% minus the Non-PO
Percentage for such Mortgage Loan. As to any Mortgage Loan that is not a
Discount Mortgage Loan, 0%.

         PO Principal Amount: As to any Distribution Date, the sum of the
applicable PO Percentage of (a) the principal portion of each Monthly Payment
(without giving effect, prior to the reduction of the Current Bankruptcy
Coverage Amount to zero, to any reductions thereof caused by any Debt Service
Reductions) due on each Mortgage Loan on the related Due Date, (b) the Stated
Principal Balance of each Mortgage Loan that was repurchased by the Seller or
the Sponsor pursuant to this Agreement as of such Distribution Date, (c) any
Substitution Adjustment Amount in connection with any Defective Mortgage Loan
received with respect to such Distribution Date, (d) any Liquidation Proceeds
allocable to recoveries of principal of Mortgage Loans that are not yet
Liquidated Mortgage Loans received during the calendar month preceding the month
of such Distribution Date, (e) with respect to each Mortgage Loan that became a
Liquidated Mortgage Loan during the calendar month preceding the month of such
Distribution Date, the amount of Liquidation Proceeds allocable to principal
received with respect to such Mortgage Loan during the calendar month preceding
the month of such Distribution Date with respect to such Mortgage Loan and (f)
all Principal Prepayments received during the calendar month preceding such
Distribution Date.

         Pool Stated Principal Balance: As to any Distribution Date, the
aggregate Stated Principal Balances of all Mortgage Loans that were Outstanding
Mortgage Loans immediately following the Due Date in the month of such
Distribution Date.

         Prepayment Interest Shortfall: As to any Distribution Date and each
Mortgage Loan subject to Principal Prepayment received during the calendar month
preceding such Distribution Date, the amount, if any, by which one month's
interest at the related Mortgage Rate (net of the Master Servicing Fee) on such
Principal Prepayment exceeds the amount of interest paid in connection with such
Principal Prepayment.

         Primary 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 FNMA or FHLMC.

         Principal-Only Certificates: Any Class of Certificates entitled to
distributions of principal, but to no distributions of interest. The Class A-PO
Certificates are the sole Class of Principal-Only Certificates.

                                       19
<PAGE>   26

         Principal Prepayment: 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.

         Private Certificates:  The Class B-4, Class B-5 and Class B-6 
Certificates.

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

         Purchase Price: As to any Defective Mortgage Loan repurchased on any
date pursuant to Sections 2.02, 2.03 or 2.08, an amount equal to the sum of (i)
the unpaid principal balance thereof and (ii) the unpaid accrued interest
thereon at the applicable Mortgage Rate from the Due Date to which interest was
last paid by the Mortgagor to the first day of the month following the month in
which such Mortgage Loan became eligible to be repurchased; provided, however,
that if at the time of repurchase the Seller is the Master Servicer, the amount
described in clause (ii) shall be computed at the Mortgage Rate net of the
Master Servicing Fee Rate.

         Rating Agency: Each of Fitch and S&P. If either 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 Sponsor, notice of which designation shall be given to the
Trustee. References herein to a given rating or rating category of a Rating
Agency shall mean such rating category without giving effect to any modifiers.

         Realized Loss: With respect to each Liquidated Mortgage Loan, an amount
(not less than zero or more than the Stated Principal Balance of the Mortgage
Loan) as of the date of such liquidation, equal to (i) the unpaid principal
balance of the Liquidated Mortgage Loan as of the date of such liquidation, plus
(ii) interest at the Net Mortgage Rate from the Due Date as to which interest
was last paid or advanced (and not reimbursed) to Certificateholders up to the
Due Date in the month in which Liquidation Proceeds are required to be
distributed on the Stated Principal Balance of such Liquidated Mortgage Loan
from time to time, minus (iii) the Liquidation Proceeds, if any, received during
the month in which such liquidation occurred, to the extent applied as
recoveries of interest at the Net Mortgage 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

                                       20
<PAGE>   27

Distribution Date, the amount, if any, by which the principal portion of the
related Monthly Payment has been reduced.

         Record Date: The last day of the month (or, if such day is not a
Business Day, the preceding Business Day) preceding the month of the related
Distribution Date.

         Refinanced Mortgage Loan:  Any Mortgage Loan the proceeds of which were
not used to purchase the related Mortgaged Property.

         Regular Certificates:  The Class A and Class B Certificates.

         Relief Act:  The Soldiers' and Sailors' Civil Relief Act of 1940, as 
amended.

         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 most recently ended calendar month as a result of
the application of the Relief Act, the amount, if any, by which (i) interest
collectible on such Mortgage Loan for the most recently ended calendar month 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 most recently ended calendar month.

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

         REMIC Certificate Maturity Date: The "latest possible maturity date" of
the Regular Certificates as that term is defined in Section 2.07.

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

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

         REO Disposition Period:  As defined in Section 3.14.

         REO Proceeds: Proceeds, net of any related expenses of the Master
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 the Master Servicer on
behalf of the Trust through foreclosure or deed-in-lieu of foreclosure in
connection with a defaulted Mortgage Loan.

                                       21
<PAGE>   28

         Request for Release: The Request for Release submitted by the Master
Servicer to the Trustee or the Custodian on behalf of the Trustee, substantially
in the form of Exhibit F.

         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(c).

         Residual Certificates:  The Class R Certificates.

         Responsible Officer:  When used with respect to the Trustee, any
officer in its corporate trust department or successor group.

         Restricted Classes:  As defined in Section 5.02(d).

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

         Sale Agreement:  The Mortgage Loan Sale Agreement, dated August 25,
1998, between the Seller and the Sponsor, as purchaser.

         Seller:  NationsBanc Mortgage Corporation, as seller of the Mortgage 
Loans under the Sale Agreement.

         Senior Certificates:  The Class A and Class R Certificates.

         Senior Credit Support Depletion Date:  The date on which the aggregate 
Class Certificate Balance of the Subordinate Certificates is reduced to zero.

         Senior Percentage: With respect to any Distribution Date, the
percentage carried six places rounded up, obtained by dividing the aggregate
Class Certificate Balance of the Senior Certificates (other than the Class A-PO
Certificates), immediately prior to such Distribution Date by the aggregate
Class Certificate Balance of all Classes of Certificates (other than the Class
A-PO Certificates) immediately prior to such Distribution Date.

         Senior Prepayment Percentage: For any Distribution Date during the five
years beginning on the first Distribution Date, 100%. The Senior Prepayment
Percentage for any Distribution Date occurring on or after the fifth anniversary
of the first Distribution Date will, except as provided herein, be as follows:
for any Distribution Date in the first year thereafter, the Senior Percentage
plus 70% of the Subordinate Percentage for such Distribution Date; for any
Distribution Date in the second year thereafter, the Senior Percentage plus 60%
of the Subordinate Percentage for such Distribution Date; for any Distribution
Date in the third year thereafter, the Senior Percentage plus 40% of the
Subordinate Percentage for such Distribution Date; for any Distribution Date in
the fourth year thereafter, the Senior Percentage plus 20% of the Subordinate
Percentage for such Distribution Date; and for any Distribution Date in the
fifth or later years thereafter, the Senior

                                       22
<PAGE>   29

Percentage for such Distribution Date (unless on any of the foregoing
Distribution Dates the Senior Percentage exceeds the initial Senior Percentage,
in which case the Senior Prepayment Percentage for such Distribution Date will
once again equal 100%). Notwithstanding the foregoing, no decrease in the Senior
Prepayment Percentage will occur unless both of the Senior Step Down Conditions
are satisfied.

         Senior Principal Distribution Amount: As to any Distribution Date, the
sum of (i) the Senior Percentage of the applicable Non-PO Percentage of all
amounts described in clauses (a) through (d) of the definition of "Non-PO
Principal Amount" for such Distribution Date, (ii) with respect to each Mortgage
Loan that became a Liquidated Mortgage Loan during the calendar month preceding
the month of such Distribution Date, the lesser of (A) the Senior Percentage of
the applicable Non-PO Percentage of the Stated Principal Balance of such
Mortgage Loan and (B) either (1) the Senior Prepayment Percentage of the
applicable Non-PO Percentage of the portion of the Liquidation Proceeds that are
allocable to principal of such Mortgage Loan, or (2) if an Excess Loss was
sustained with respect to such Liquidated Mortgage Loan during such preceding
calendar month, the Senior Percentage of the applicable Non-PO Percentage of the
portion of Liquidation Proceeds that are allocable to principal of such Mortgage
Loan, and (iii) the Senior Prepayment Percentage of the applicable Non-PO
Percentage of the amounts described in clause (f) of the definition of "Non-PO
Principal Amount" for such Distribution Date; provided, however, that if a Debt
Service Reduction that is an Excess Loss is sustained with respect to a Mortgage
Loan that is not a Liquidated Mortgage Loan, the Senior Principal Distribution
Amount will be reduced on the related Distribution Date by the Senior Percentage
of the application Non-PO Percentage of the principal portion of such Debt
Service Reduction.

         Senior Step Down Conditions: As of any Distribution Date as to which
any decrease in the Senior Prepayment Percentage applies, (i) the outstanding
principal balance of all Mortgage Loans (including, for this purpose, any
Mortgage Loans in foreclosure or any REO Property) delinquent 60 days or more
(averaged over the preceding six month period), as a percentage of the aggregate
Class Certificate Balance of the Subordinate Certificates (averaged over the
preceding six-month period), is not equal to or greater than 50% or (ii)
cumulative Realized Losses with respect to the Mortgage Loans as of the
applicable Distribution Date do not exceed the percentages of the Original
Subordinate Certificate Balance set forth below:

                                                            Percentage of
                                                        Original Subordinate
Distribution Date Occurring                              Certificate Balance
- ---------------------------                             --------------------

September 2003 to August 2004.................................   30%
September 2004 through August 2005............................   35%
September 2005 through August 2006............................   40%
September 2006 through August 2007............................   45%
September 2007 and thereafter.................................   50%

         Servicer:  Any Person with which the Master Servicer has entered into a
Servicing Agreement and which satisfies the requirements set forth therein.

                                       23
<PAGE>   30

         Servicing Advances: All customary, reasonable and necessary "out of
pocket" costs and expenses incurred in the performance by the Master Servicer of
its servicing obligations, including, but not limited to (i) the preservation,
restoration and protection of a Mortgaged Property, (ii) expenses reimbursable
to the Master Servicer pursuant to Section 3.14 and any enforcement or judicial
proceedings, including foreclosures, (iii) the management and liquidation of any
REO Property and (iv) compliance with the obligations under Section 3.12.

         Servicing Agreement: Any servicing agreement between the Master
Servicer and any Servicer relating to servicing and/or administration of certain
Mortgage Loans as provided in Section 3.02.

         Servicing File: The items pertaining to a particular Mortgage Loan
referred to in Exhibit L hereto, and any additional documents required to be
added to the Servicing File pursuant to the Agreement.

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

         Special Hazard Loss: As to a Mortgaged Property, any Realized Loss on
account of direct physical loss, exclusive of (i) any loss covered by a hazard
policy or a flood insurance policy maintained in respect of such Mortgaged
Property pursuant to Section 3.12 and (ii) any loss caused by or resulting from:

                  (a) (i) wear and tear, deterioration, rust or corrosion, mold,
                  wet or dry rot; inherent vice or latent defect; animals,
                  birds, vermin or insects; or

                      (ii) settling, subsidence, cracking, shrinkage,
                  building or expansion of pavements, foundations, walls,
                  floors, roofs or ceilings;

                  (b) errors in design, faulty workmanship or faulty materials,
         unless the collapse of the property or a part thereof ensues and then
         only for the ensuing loss;

                  (c) nuclear or chemical reaction or nuclear radiation or
         radioactive or chemical contamination, all whether controlled or
         uncontrolled, and whether such loss is direct or indirect, proximate or
         remote; or

                  (d) (i) hostile or warlike action in time of peace or war,
                  including action in hindering, combating or defending against
                  an actual, impending or expected attack (A) by any government
                  or sovereign power (de jure or de facto), or by any authority
                  maintaining or using military, naval or air forces; or (B) by
                  military, naval or air forces; or (C) by an agent of any such
                  government, power, authority or forces;

                                       24
<PAGE>   31

                           (ii) any weapon of war or facility for producing same
                  employing atomic fission, radioactive force or chemical or
                  biological contaminants, whether in time of peace or war; or

                           (iii) insurrection, rebellion, revolution, civil war,
                  usurped power or action taken by governmental authority in
                  hindering, combating or defending against such an occurrence,
                  seizure or destruction under quarantine or customs
                  regulations, confiscation by order of any government or public
                  authority, or risks of contraband or illegal transportation or
                  trade.

         Special Hazard Loss Coverage Amount: As to any Distribution Date, the
lesser of (a) the greatest of (i) 1% of the Pool Stated Principal Balance of the
Mortgage Loans, (ii) twice the principal balance of the largest Mortgage Loan,
and (iii) the aggregate principal balance of all Mortgage Loans secured by
Mortgaged Properties located in the single California five-digit postal zip code
having the highest aggregate principal balance of any zip code area (all
principal balances to be calculated as of the first day of the month preceding
such Distribution Date after giving effect to Monthly Payments then due, whether
or not paid) and (b) the Initial Special Hazard Coverage Amount, reduced (but
not below zero) by the amount of Realized Losses in respect of Special Hazard
Mortgage Loans previously incurred during the period from the Cut-Off Date
through the last day of the month preceding the month of such Distribution Date.
The Special Hazard Loss Coverage Amount may be further reduced from time to time
below the amounts specified above with the written consent of the Rating
Agencies and without resulting in a downgrading to the then-current rating of
the Certificates.

         Special Hazard Mortgage Loan: Any Liquidated Mortgage Loan as to which
the ability to recover thereon was substantially impaired by reason of a Special
Hazard Event.

         Sponsor:  NationsBanc Montgomery Funding Corp., a Delaware corporation,
or its successor in interest, as sponsor of the Trust Fund.

         Stated Principal Balance: As to any Mortgage Loan and date, the unpaid
principal balance of such Mortgage Loan as of the Due Date immediately preceding
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.

         Subordinate Certificates:  The Class B Certificates.

         Subordinate Percentage:  As of any Distribution Date, 100% minus the 
Senior Percentage for such Distribution Date.

         Subordinate Prepayment Percentage:  As to any Distribution Date, 100% 
minus the Senior Prepayment Percentage for such Distribution Date.

                                       25
<PAGE>   32

         Subordinate Principal Distribution Amount: With respect to any
Distribution Date, an amount equal to the sum of (i) the Subordinate Percentage
of the applicable Non-PO Percentage of all amounts described in clauses (a)
through (d) of the definition of "Non-PO Principal Amount" for such Distribution
Date, (ii) with respect to each Mortgage Loan that became a Liquidated Mortgage
Loan during the calendar month preceding the month of such Distribution Date,
the applicable Non-PO Percentage of the portion of Liquidation Proceeds
allocable to principal received with respect to such Mortgage Loan during such
preceding calendar month and remaining after application of amounts pursuant to
clause (ii) of the definition of "Senior Principal Distribution Amount", up to
the Subordinate Percentage of the applicable Non-PO Percentage of the Stated
Principal Balance of such Mortgage Loan and (iii) the Subordinate Prepayment
Percentage of the applicable Non-PO Percentage of the amounts described in
clause (f) of the definition of "Non-PO Principal Amount" for such Distribution
Date; provided, however, that if a Debt Service Reduction that is an Excess Loss
is sustained with respect to a Mortgage Loan that is not a Liquidated Mortgage
Loan, the Subordinate Principal Distribution Amount will be reduced on the
related Distribution Date by the Subordinate Percentage of the applicable Non-PO
Percentage of the principal portion of such Debt Service Reduction.

         Subsidiary REMIC:  As described in the Preliminary Statement.

         Subsidiary REMIC Interest:  Any one of the Subsidiary REMIC Regular 
Interests or the Class R-I Certificates.

         Subsidiary REMIC Regular Interest:  Any one of the uncertificated 
"regular interests" in the Subsidiary REMIC described in the Preliminary
Statement.

         Substitute Mortgage Loan: A Mortgage Loan substituted by the Seller for
a Defective Mortgage Loan which must, on the date of such substitution, be
approved by the Sponsor and (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, and not more than 10% less than, the Stated
Principal Balance of the Defective Mortgage Loan; (ii) have a Net Mortgage Rate
equal to that of the Defective Mortgage Loan; (iii) have a Loan-to-Value Ratio
not higher than that of the Defective Mortgage Loan; (iv) have a remaining term
to maturity not greater than (and not more than one year less than) that of the
Defective Mortgage Loan; and (v) comply with each Mortgage Loan representation
and warranty set forth in the Sale 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 2.03(c).

         Tax Matters Person: The person designated as "tax matters person" in
accordance with Section 5.06 and the manner provided under Treasury Regulations
ss. 1.860F-4(d) and temporary Treasury Regulation ss. 301.6231(a)(7)-1.

         Trust:  The trust created by this Agreement.

                                       26
<PAGE>   33

         Trust Fund: The corpus of the Trust created to the extent described
herein, consisting of the Mortgage Loans, such assets as shall from time to time
be identified as deposited in the Collection Account or the Distribution Account
in accordance with this Agreement, REO Property, the Primary Insurance Policies
and any other Required Insurance Policy.

         Trustee:  Norwest Bank Minnesota, National Association, and its 
successors and, if a successor trustee is appointed hereunder, such successor, 
as trustee.

         Trustee Fee: As to any Distribution Date, an amount equal to
one-twelfth of the Trustee Fee Rate multiplied by the aggregate Stated Principal
Balance of the Mortgage Loans immediately following the Due Date in the month
preceding the month in which such Distribution Date occurs.

         Trustee Fee Rate: With respect to each Mortgage Loan, 0.005% per annum.

         U.S. Person: A citizen or resident of the United States, a corporation,
partnership (except to the extent provided in applicable Treasury regulations)
or other entity created or organized in or under the laws of the United States
or any political subdivision thereof, an estate that is subject to United States
federal income tax, regardless of the source of its income, or a trust, if a
court within the United States is able to exercise primary supervision over the
administration of such trust, and one or more such U.S. Persons have the
authority to control all substantial decisions of such trust (or, to the extent
provided in applicable Treasury regulations, certain trusts in existence on
August 20, 1996 which are eligible to elect to be treated as U.S. Persons).

         Voting Rights: The portion of the voting rights of all of the
Certificates which is allocated to any Certificate. As of any date of
determination, (a) 1% of all Voting Rights shall be allocated to each Class of
Notional Amount Certificates and each Class of Residual Certificates (such
Voting Rights to be allocated among the Holders of Certificates of each such
Class in accordance with their respective Percentage Interests), and (b) the
remaining Voting Rights shall be allocated among Holders of the remaining
Classes of Certificates in proportion to the Certificate Balances of their
respective Certificates on such date.

         SECTION 1.02.     Interest Calculations. All calculations of interest 
will be made on a 360-day year consisting of twelve 30-day months. All dollar
amounts calculated hereunder shall be rounded to the nearest penny with one-half
of one penny being rounded down.

                                   ARTICLE II

                          CONVEYANCE OF MORTGAGE LOANS;
                        ORIGINAL ISSUANCE OF CERTIFICATES

         SECTION 2.01.     Conveyance of Mortgage Loans.

         (a) The Sponsor, concurrently with the execution and delivery hereof,
hereby sells, transfers, assigns, sets over and otherwise conveys to the Trustee
for the benefit of the Certificateholders, without recourse, all the right,
title and interest of the Sponsor in and to the Mortgage Loans, including all
interest and principal received on or with respect to the Mortgage

                                       27
<PAGE>   34

Loans (other than payments of principal and interest due and payable on the
Mortgage Loans on or before the Cut-Off Date), together with the Sponsor's
rights under the Sale Agreement and the representations and warranties of the
Seller thereunder, together with all rights of the Sponsor to require the Seller
to cure any breach of a representation or warranty made in the Sale Agreement by
the Seller or to repurchase or substitute for any affected Mortgage Loan in
accordance herewith and the Sale Agreement.

         (b) In connection with such transfer and assignment, the Sponsor has
delivered or caused to be delivered to the Trustee, for the benefit of the
Certificateholders, the following documents or instruments with respect to each
Mortgage Loan so assigned:

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

                  (ii) except as provided below, the original recorded Mortgage
         with evidence of a recording thereon, or if any such Mortgage has not
         been returned from the applicable recording office or has been lost, or
         if such public recording office retains the original recorded Mortgage,
         a copy of such Mortgage certified by the Seller as being a true and
         correct copy of the Mortgage;

                  (iii) subject to the proviso at the end of this paragraph, a
         duly executed Assignment of Mortgage to "Norwest Bank Minnesota, as
         trustee for the holders of the NationsBanc Montgomery Funding Corp.
         Mortgage-Pass Through Certificates, Series 1998-1" (which may be
         included in a blanket assignment or assignments), together with, except
         as provided below, originals of all interim recorded assignments of
         such mortgage or a copy of such interim assignment certified by the
         Seller as being a true and complete copy of the original recorded
         intervening assignments of Mortgage (each such assignment, when duly
         and validly completed, to be in recordable form and sufficient to
         effect the assignment of and transfer to the assignee thereof, under
         the Mortgage to which the assignment relates); provided that, if the
         related Mortgage has not been returned from the applicable public
         recording office, such Assignment of Mortgage may exclude the
         information to be provided by the recording office;

                  (iv) the originals of all assumption, modification,
         consolidation or extension agreements, if any, with evidence of
         recording thereon, if any;

                  (v) the original or duplicate original mortgagee title
         insurance policy and all riders thereto;

                  (vi) the original of any guarantee executed in connection with
         the Mortgage Note; and

                                       28
<PAGE>   35

                  (vii) the original of any security agreement, chattel mortgage
         or equivalent document executed in connection with the Mortgage;

provided, however, that on the Closing Date, with respect to item (iii), the
Sponsor has delivered to the Trustee a copy of such Assignment of Mortgage in
blank and has caused the Master Servicer to retain the completed Assignment of
Mortgage for recording as described below. In addition, if the Sponsor is unable
to deliver or cause the delivery of any original Mortgage Note due to the loss
of such original Mortgage Note, the Sponsor may deliver a copy of such Mortgage
Note, together with a lost note affidavit, and shall thereby be deemed to have
satisfied the document delivery requirements of this 2.01(b).

         If in connection with any Mortgage Loans, the Sponsor cannot deliver
(A) the Mortgage, (B) all interim recorded assignments, (C) all assumption,
modification, consolidation or extension agreements, if any, or (D) the lender's
title policy (together with all riders thereto) satisfying the requirements of
clause (ii), (iii), (iv) or (v) above, respectively, concurrently with the
execution and delivery hereof because such document or documents have not been
returned from the applicable public recording office in the case of clause (ii),
(iii) or (iv) above, or because the title policy has not been delivered to
either the Master Servicer or the Sponsor by the applicable title insurer in the
case of clause (v) above, the Sponsor shall promptly deliver or cause to be
delivered to the Trustee or the Custodian on behalf of the Trustee, in the case
of clause (ii), (iii) or (iv) above, such Mortgage, such interim assignment or
such assumption, modification, consolidation or extension agreement, as the case
may be, with evidence of recording indicated thereon upon receipt thereof from
the public recording office, but in no event shall any such delivery of any such
documents or instruments be made later than one year following the Closing Date,
unless, in the case of clause (ii), (iii) or (iv) above, there has been a
continuing delay at the applicable recording office or, in the case of clause
(v), there has been a continuing delay at the applicable insurer and the Sponsor
has delivered the Officer's Certificate to such effect to the Trustee. The
Sponsor shall forward or cause to be forwarded to the Trustee (1) from time to
time additional original documents evidencing an assumption or modification of a
Mortgage Loan and (2) any other documents required to be delivered by the
Sponsor or the Master Servicer to the Trustee or the Custodian on the Trustee's
behalf. In the event that the original Mortgage is not delivered and in
connection with the payment in full of the related Mortgage Loan the public
recording office requires the presentation of a "lost instruments affidavit and
indemnity" or any equivalent document, because only a copy of the Mortgage can
be delivered with the instrument of satisfaction or reconveyance, the Master
Servicer shall prepare, execute and deliver or cause to be prepared, executed
and delivered, on behalf of the Trust, such a document to the public recording
office.

         As promptly as practicable subsequent to such transfer and assignment,
and in any event, within 30 days thereafter, the Master Servicer shall (I) cause
each Assignment of Mortgage to be in proper form for recording in the
appropriate public office for real property records within 30 days of the
Closing Date and (II) at the Sponsor's expense, cause to be delivered for
recording in the appropriate public office for real property records the
Assignments of the Mortgages to the Trustee, except that, with respect to any
Assignment of a Mortgage as to which the Master Servicer has not received the
information required to prepare such assignment in recordable form, the Master
Servicer's obligation to do so and to deliver the same for such recording shall
be as soon as

                                       29
<PAGE>   36

practicable after receipt of such information and in any event within 30 days
after the receipt thereof.

         In the case of Mortgage Loans that have been prepaid in full as of the
Closing Date, the Sponsor, in lieu of delivering the above documents to the
Trustee, or the Custodian on the Trustee's behalf, will cause the Master
Servicer to deposit in the Collection Account the portion of such payment that
is required to be deposited in the Collection Account pursuant to Section 3.08.

         SECTION 2.02.     Acceptance by the Trustee of the Mortgage Loans.
Subject to the provisions of the following paragraph, the Trustee declares that
it, or the Custodian as its agent, will hold the documents referred to in
Section 2.01 and the other documents delivered to it constituting the Mortgage
Files, and that it will hold such other assets as are included in the Trust
Fund, in trust for the exclusive use and benefit of all present and future
Certificateholders.

         Upon execution and delivery of this document, the Trustee shall deliver
to the Sponsor and the Master Servicer a certification in the form of Exhibit M
hereto (the "Initial Certification") to the effect that, except as may be
specified in a list of exceptions attached thereto: (a) it, or the Custodian as
its agent, has received the original Mortgage Note relating to each of the
Mortgage Loans listed on the Mortgage Loan Schedule, and (b) each Mortgage Note
purports to be that of the Mortgagor.

         Within 90 days after the execution and delivery of this Agreement, the
Trustee shall review, or cause the Custodian to review, the Mortgage Files in
its possession, and shall deliver to the Sponsor and the Master Servicer a
certification in the form of Exhibit N hereto (the "Final Certification") to the
effect that, as to each Mortgage Loan listed in the Mortgage Loan Schedule,
except as may be specified in a list of exceptions attached to such Final
Certification, such Mortgage File contains all of the items required to be
delivered pursuant to Section 2.01(b).

         If, in the course of such review, the Trustee or the Custodian finds
any document constituting a part of a Mortgage File which does not meet the
requirements of Section 2.01 or is omitted from such Mortgage File, the Trustee
shall promptly so notify the Master Servicer, the Seller and the Sponsor, or
shall cause the Custodian to promptly so notify the Master Servicer, the Seller
and the Sponsor. In performing any such review, the Trustee or the Custodian may
conclusively rely on the purported genuineness of any such document and any
signature thereon. It is understood that the scope of the Trustee's or the
Custodian's review of the Mortgage Files is limited solely to confirming that
the documents listed in Section 2.01 have been received and further confirming
that any and all documents delivered pursuant to Section 2.01 have been executed
and relate to the Mortgage Loans identified in the Mortgage Loan Schedule.
Neither the Trustee nor the Custodian shall have any responsibility for
determining whether any document is valid and binding, whether the text of any
assignment or endorsement is in proper or recordable form, whether any document
has been recorded in accordance with the requirements of any applicable
jurisdiction, or whether a blanket assignment is permitted in any applicable
jurisdiction. The Master Servicer shall cause the Seller, in accordance with the
terms and provisions of Subsection 7.03 of the Sale Agreement, to promptly
correct or cure such defect within 90 days from the date it was so notified of
such defect and, if the Seller does not correct or cure such defect within such
period, the Master Servicer shall cause the Seller to either (a) substitute for
the related

                                       30
<PAGE>   37

Mortgage Loan a Substitute Mortgage Loan, which substitution shall be
accomplished in the manner and subject to the conditions set forth in Section
2.03(c), or (b) purchase such Mortgage Loan from the Trustee at the Purchase
Price for such Mortgage Loan, in either case within 90 days from the date the
Seller was notified of such defect in writing; provided, however, that in no
event shall such a substitution occur more than two years from the Closing Date,
unless the Seller shall have provided to the Trustee an Opinion of Counsel to
the effect that such later substitution will not affect the REMIC status of
either REMIC.

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

         It is understood and agreed that the obligation of the Seller, pursuant
to Subsection 7.03 of the Sale Agreement, to substitute for or to purchase any
Mortgage Loan which does not meet the requirements of Section 2.01 shall
constitute the sole remedy respecting such defect available to the Trustee, the
Sponsor and any Certificateholder against the Seller.

         The Trustee or the Custodian, on behalf of the Trustee, shall be under
no duty or obligation (i) to inspect, review or examine any such documents,
instruments, certificates or other papers to determine that they are genuine,
enforceable, or appropriate for the represented purpose or that they are other
than what they purport to be on their face or (ii) to determine whether any
Mortgage File should include any of the documents specified in Section
2.01(b)(iv), (vi) and (vii).

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

         (a) The Master Servicer hereby makes the following representations and
warranties to the Sponsor and the Trustee, as of the Closing Date:

                  (i) The Master Servicer is a corporation duly organized,
         validly existing, and in good standing under the laws of the State of
         Texas and has all licenses necessary to carry on its business as now
         being conducted and is licensed, qualified and in good standing in each
         of the states where a Mortgaged Property is located if the laws of such
         state require licensing or qualification in order to conduct business
         of the type conducted by the Master Servicer. The Master Servicer has
         corporate power and authority to execute and deliver this Agreement and
         to perform in accordance herewith; the execution, delivery and
         performance of this Agreement (including all instruments of transfer to
         be delivered pursuant to this Agreement) by the Master Servicer and the
         consummation of the transactions contemplated hereby have been duly and
         validly authorized. This Agreement, assuming due authorization,
         execution and delivery by the other parties hereto, evidences the
         valid, binding and enforceable obligation of the Master Servicer,
         subject to applicable law except as enforceability may be limited by
         (A) bankruptcy, insolvency, liquidation, receivership, moratorium,
         reorganization or other similar laws affecting the enforcement of the
         rights of creditors and (B) general principles

                                       31
<PAGE>   38

         of equity, whether enforcement is sought in a proceeding in equity or
         at law. All requisite corporate action has been taken by the Master
         Servicer to make this Agreement valid and binding upon the Master
         Servicer in accordance with its terms.

                  (ii) No consent, approval, authorization or order is required
         for the transactions contemplated by this Agreement from any court,
         governmental agency or body, or federal or state regulatory authority
         having jurisdiction over the Master Servicer is required or, if
         required, such consent, approval, authorization or order has been or
         will, prior to the Closing Date, be obtained.

                  (iii) The consummation of the transactions contemplated by
         this Agreement are in the ordinary course of business of the Master
         Servicer and will not result in the breach of any term or provision of
         the charter or by-laws of the Master Servicer or result in the breach
         of any term or provision of, or conflict with or constitute a default
         under or result in the acceleration of any obligation under, any
         agreement, indenture or loan or credit agreement or other instrument to
         which the Master Servicer or its property is subject, or result in the
         violation of any law, rule, regulation, order, judgment or decree to
         which the Master Servicer or its property is subject.

                  (iv) There is no action, suit, proceeding or investigation
         pending or, to the best knowledge of the Master Servicer, threatened
         against the Master Servicer which, either individually or in the
         aggregate, would result in any material adverse change in the business,
         operations, financial condition, properties or assets of the Master
         Servicer, or in any material impairment of the right or ability of the
         Master Servicer to carry on its business substantially as now conducted
         or which would draw into question the validity of this Agreement or the
         Mortgage Loans or of any action taken or to be taken in connection with
         the obligations of the Master Servicer contemplated herein, or which
         would materially impair the ability of the Master Servicer to perform
         under the terms of this Agreement.

                  (v) The Master Servicer is working to modify its computer and
         other systems used in servicing the Mortgage Loans to operate in a
         manner such that, on and after January 1, 2000, the Master Servicer can
         service the Mortgage Loans in accordance with the terms of this
         Agreement.

         (b) The Seller has made certain representations and warranties with
respect to the Mortgage Loans in Subsection 7.01 of the Sale Agreement. The
Sponsor hereby assigns such representations and warranties (together with any
rights to cure breaches with respect thereto) to the Trustee for the benefit of
the Certificateholders.

         (c) Upon discovery by any of the parties hereto of a breach of a
representation or warranty made pursuant to Subsection 7.01 of the Sale
Agreement that materially and adversely affects the value of any Mortgage Loan
or the interests of the Certificateholders in any Mortgage Loan, the party
discovering such breach shall give prompt notice thereof to the other parties
hereto and to the Seller. In accordance with the terms and provisions of
Subsection 7.03 of the Sale Agreement, the Master Servicer shall cause the
Seller to, within 90 days of the earlier of its

                                       32
<PAGE>   39

discovery or its receipt of written notice from any party of a breach of any
representation or warranty made pursuant to Subsection 7.01 of the Sale
Agreement which materially and adversely affects the value of any Mortgage Loan
or interests of the Certificateholders in any Mortgage Loan, cure such breach in
all material respects, and if such breach is not so cured, shall, (i) if such
action is taken within the two-year period following the Closing Date, remove
such Mortgage Loan from the Trust Fund and substitute in its place a Substitute
Mortgage Loan, in the manner and subject to the conditions set forth in this
Section 2.03(c); or (ii) purchase the affected Mortgage Loan or Mortgage Loans
from the Trustee at the Purchase Price in the manner set forth below.

         With respect to each Substitute Mortgage Loan, the Master Servicer
shall cause the Seller to deliver to the Trustee, for the benefit of the
Certificateholders, the Mortgage Note, the Mortgage, the related Assignment of
Mortgage, and such other documents and agreements as are otherwise required by
Section 2.01, with the Mortgage Note endorsed and the Mortgage assigned as
required by Section 2.01. No substitution is permitted to be made in any
calendar month after the Determination Date for such month. Monthly Payments due
with respect to any Substitute Mortgage Loan in the month of substitution shall
not be part of the Trust Fund and will be retained by the Seller. For the month
of substitution, distributions to Certificateholders will include the Monthly
Payment due on any Defective Mortgage Loan for such month and thereafter the
Seller shall be entitled to retain all amounts received in respect of such
Defective Mortgage Loan.

         The Master Servicer shall amend the Mortgage Loan Schedule for the
benefit of the Certificateholders to reflect the removal of a Defective Mortgage
Loan and the substitution of the Substitute Mortgage Loan or Loans and the
Master Servicer shall deliver the amended Mortgage Loan Schedule to the Trustee
and the Custodian. Upon such substitution, each Substitute Mortgage Loan shall
be subject to the terms of this Agreement in all respects, and the Seller shall
be deemed to have made to the Trustee with respect to such Substitute Mortgage
Loan, as of the date of substitution, the representations and warranties made
pursuant to Subsection 7.01 of the Sale Agreement. Upon any such substitution
and the deposit to the Collection Account of any required Substitution
Adjustment Amount (as described in the next paragraph) and receipt of a Request
for Release, the Trustee shall release, or shall direct the Custodian to
release, the Mortgage File relating to such Defective Mortgage Loan to the
Seller and shall execute and deliver at the Seller's direction such instruments
of transfer or assignment prepared by the Seller, in each case without recourse,
as shall be necessary to vest title in the Seller, or its designee, the
Trustee's interest in any Defective Mortgage Loan substituted for pursuant to
this Section 2.03(c).

         For any month in which the Seller substitutes one or more Substitute
Mortgage Loans for one or more Defective Mortgage Loans, the Master Servicer
will determine the amount (if any) by which the aggregate principal balance of
all such Substitute Mortgage Loans as of the date of substitution is less than
the aggregate Stated Principal Balance of all such Defective Mortgage Loans
(after application of the principal portion of the Monthly Payments due in the
month of substitution). The amount of such shortage (the "Substitution
Adjustment Amount") plus an amount equal to the aggregate of any unreimbursed
Advances with respect to such Defective Mortgage Loans shall be deposited into
the Collection Account by the Seller on or before the Distribution Account
Deposit Date for the Distribution Date in the month succeeding the calendar
month during which the related Mortgage Loan is required to be purchased or
replaced hereunder.

                                       33
<PAGE>   40

         If the Seller repurchases a Defective Mortgage Loan, the Purchase Price
therefor shall be deposited in the Collection Account pursuant to Section
3.08(b)(vi) on or before the Distribution Account Deposit Date for the
Distribution Date in the month following the month during which the Seller
became obligated to repurchase or substitute for such Mortgage Loan and upon
such deposit of the Purchase Price, and receipt of a Request for Release, the
Trustee, or the Custodian on behalf of the Trustee, shall release the related
Mortgage File held for the benefit of the Certificateholders to the Seller, and
the Trustee shall execute and deliver at the Seller's direction such instruments
of transfer or assignment prepared by the Seller, in each case without recourse,
as shall be necessary to transfer title from the Trustee. It is understood and
agreed that the obligation of the Seller, pursuant to Subsection 7.03 of the
Sale Agreement, to cure, repurchase or substitute for any Mortgage Loan as to
which a breach has occurred and is continuing shall constitute the sole remedy
against the Seller respecting such breach available to Certificateholders, the
Sponsor or the Trustee on their behalf.

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

         SECTION 2.04.     Representations and Warranties of the Sponsor as to
the Mortgage Loans. The Sponsor hereby represents and warrants to the Trustee
with respect to each Mortgage Loan as of the date hereof or such other date set
forth herein that as of the Closing Date, and following the transfer of the
Mortgage Loans to it by the Seller, the Sponsor had good title to the Mortgage
Loans and the Mortgage Notes were subject to no offsets, defenses or
counterclaims.

         The Sponsor hereby assigns, transfers and conveys to the Trustee all of
its rights with respect to the Mortgage Loans including, without limitation, the
representations and warranties of the Seller made pursuant to Subsection 7.01 of
the Sale Agreement, together with all rights of the Sponsor to require the
Seller to cure any breach thereof or to repurchase or substitute for any
affected Mortgage Loan in accordance with the Sale Agreement.

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

         SECTION 2.05.     Designation of Interests in REMIC. The Preliminary
Statement sets forth the designations for federal income tax purposes of all
interests created hereby. The "tax matters person" with respect to each REMIC
hereunder shall be the Holder of the applicable Residual Certificate. The Tax
Matters Person of each REMIC hereby appoints the Trustee as its agent to perform
all acts required to be performed by the Tax Matters Person and to prepare and
file all necessary tax forms and reports. Each REMIC's fiscal year shall be the
calendar year.

                                       34
<PAGE>   41

         SECTION 2.06.     Designation of Start-up Day. The Closing Date is 
hereby designated as the "start-up day" of the Master and Subsidiary REMICs
within the meaning of Section 860G(a)(9) of the Code.

         SECTION 2.07.     REMIC Certificate Maturity Date. Solely for purposes
of satisfying Section 1.860G-1(a)(4)(iii) of the Treasury Regulations, the
"latest possible maturity date" of each Class of uncertificated interests (other
than the Class R-I Certificates) in the Subsidiary REMIC and the Regular
Certificates is the Distribution Date in September 2031.

         SECTION 2.08.     Repurchases for Tax Violations. Upon discovery by the
Sponsor, the Seller, the Master Servicer, or the Trustee that any Mortgage Loan
does not constitute a "qualified mortgage" within the meaning of Section
860G(a)(3) of the Code, the party discovering such fact shall promptly (and in
any event within five Business Days of discovery) give written notice thereof to
the other parties. In connection therewith, the Trustee shall require the Seller
pursuant to the terms of the Sale Agreement, at the Seller's option, to either
(a) substitute, if the conditions in Section 2.03(c) with respect to
substitutions are satisfied, a Substitute Mortgage Loan for the affected
Mortgage Loan, or (b) purchase the affected Mortgage Loan within 90 days of such
discovery in the same manner as it would a Mortgage Loan for a breach of
representation or warranty made pursuant to Subsection 7.01 of the Sale
Agreement and in accordance with Section 2.03. The Trustee shall reconvey to the
Seller the Mortgage Loan to be released pursuant hereto in the same manner, and
on the same terms and conditions, as it would a Mortgage Loan purchased for
breach of a representation or warranty pursuant to Subsection 7.01 the Sale
Agreement and in accordance with Section 2.03.

         SECTION 2.09.     Execution and Delivery of Certificates. The Trustee 
acknowledges the transfer and assignment to it of the Trust Fund and the
creation of the Trust, and, concurrently with such transfer and assignment, the
Trustee has executed and delivered to or upon the order of the Sponsor, the
Certificates in authorized denominations evidencing directly or indirectly the
entire ownership of the Trust. The Trustee agrees to hold the Trust Fund and
exercise the rights referred to above for the benefit of all present and future
Holders of the Certificates and to perform the duties set forth in this
Agreement to the end that the interests of the Holders of the Certificates may
be adequately and effectively protected.


                                   ARTICLE III

                          ADMINISTRATION AND SERVICING
                                OF MORTGAGE LOANS

         SECTION 3.01.     Master Servicer to Service Mortgage Loans. For and on
behalf of the Certificateholders, the Master Servicer shall service and
administer the Mortgage Loans in accordance with the terms of this Agreement,
Customary Servicing Procedures, applicable law and the terms of the Mortgage
Notes and Mortgages. In connection with such servicing and administration, the
Master Servicer shall have full power and authority, acting alone and/or through
Servicers as provided in Section 3.02, to do or cause to be done any and all
things that it may deem necessary or desirable in connection with such servicing
and administration including, but not

                                       35
<PAGE>   42

limited to, the power and authority, subject to the terms hereof, (a) to execute
and deliver, on behalf of the Certificateholders and the Trustee, customary
consents or waivers and other instruments and documents, (b) to consent to
transfers of any Mortgaged Property and assumptions of the Mortgage Notes and
related Mortgages (but only in the manner provided in this Agreement), (c) to
collect any Insurance Proceeds and other Liquidation Proceeds, and (d) to
effectuate foreclosure or other conversion of the ownership of the Mortgaged
Property securing any Mortgage Loan. The Master Servicer shall represent and
protect the interests of the Trust in the same manner as it protects its own
interests in mortgage loans in its own portfolio in any claim, proceeding or
litigation regarding a Mortgage Loan and shall not make or permit any
modification, waiver or amendment of any term of any Mortgage Loan, except as
provided pursuant to Section 3.21. Without limiting the generality of the
foregoing, the Master Servicer, in its own name or in the name of any Servicer
or the Sponsor and the Trustee, is hereby authorized and empowered by the
Sponsor and the Trustee, when the Master Servicer or the Servicer, as the case
may be, believes it appropriate in its reasonable judgment, to execute and
deliver, on behalf of the Trustee, the Sponsor, the Certificateholders or any of
them, any and all instruments of satisfaction or cancellation, or of partial or
full release or discharge, and all other comparable instruments, with respect to
the Mortgage Loans, and with respect to the Mortgaged Properties held for the
benefit of the Certificateholders. The Master Servicer shall prepare and deliver
to the Sponsor and/or the Trustee such documents requiring execution and
delivery by either or both of them as are necessary or appropriate to enable the
Master Servicer to service and administer the Mortgage Loans to the extent that
the Master Servicer is not permitted to execute and deliver such documents
pursuant to the preceding sentence. Upon receipt of such documents, the Sponsor
and/or the Trustee shall promptly execute such documents and deliver them to the
Master Servicer.

         In accordance with the standards of the preceding paragraph, the Master
Servicer shall advance or cause to be advanced funds as necessary for the
purpose of effecting the payment of taxes and assessments on the Mortgaged
Properties, which Servicing Advances shall be reimbursable in the first instance
from related collections from the Mortgagors pursuant to Section 3.09, and
further as provided in Section 3.11. The costs incurred by the Master Servicer,
if any, in effecting the timely payments of taxes and assessments on the
Mortgaged Properties and related insurance premiums shall not, for the purpose
of calculating monthly distributions to the Certificateholders, be added to the
Stated Principal Balances of the related Mortgage Loans, notwithstanding that
the terms of such Mortgage Loans so permit.

         The relationship of the Master Servicer (and of any successor to the
Master Servicer as master servicer under this Agreement) to the Trustee under
this Agreement is intended by the parties to be that of an independent
contractor and not that of a joint venturer, partner or agent.

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

         (a) The Master Servicer may arrange for the subservicing of any
Mortgage Loan by a Servicer pursuant to a Servicing Agreement; provided,
however, that such subservicing arrangement and the terms of the related
Servicing Agreement must provide for the servicing of such Mortgage Loan in a
manner consistent with the servicing arrangements contemplated hereunder.
Notwithstanding the provisions of any Servicing Agreement, any of the provisions
of this Agreement relating to agreements or arrangements between the Master
Servicer and a Servicer or

                                       36
<PAGE>   43

reference to actions taken through a Servicer or otherwise, the Master Servicer
shall remain obligated and liable to the Sponsor, the Trustee and the
Certificateholders for the servicing and administration of the Mortgage Loans in
accordance with the provisions of this Agreement without diminution of such
obligation or liability by virtue of such Servicing Agreements or arrangements
or by virtue of indemnification from the Servicer and to the same extent and
under the same terms and conditions as if the Master Servicer alone were
servicing and administering the Mortgage Loans. All actions of each Servicer
performed pursuant to the related Servicing Agreement shall be performed as
agent of the Master Servicer with the same force and effect as if performed
directly by the Master Servicer.

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

         (c) As part of its servicing activities hereunder, the Master Servicer,
for the benefit of the Trustee and the Certificateholders, shall use its best
reasonable efforts to enforce the obligations of each Servicer under the related
Servicing Agreement, to the extent that the non-performance of any such
obligation would have a material and adverse effect on a Mortgage Loan. Such
enforcement, including, without limitation, the legal prosecution of claims,
termination of Servicing Agreements and the pursuit of other appropriate
remedies, shall be in such form and carried out to such an extent and at such
time as the Master Servicer, in its good faith business judgment, would require
were it the owner of the related Mortgage Loans. The Master Servicer shall pay
the costs of such enforcement at its own expense, and shall be reimbursed
therefor only (i) from a general recovery resulting from such enforcement to the
extent, if any, that such recovery exceeds all amounts due in respect of the
related Mortgage Loan or (ii) from a specific recovery of costs, expenses or
attorneys fees against the party against whom such enforcement is directed.

         (d) Any Servicing Agreement entered into by the Master Servicer shall
provide that it may be assumed or terminated by the Trustee, if the Trustee has
assumed the duties of the Master Servicer, or any successor Master Servicer, at
the Trustee's or successor Master Servicer's option, as applicable, without cost
or obligation to the assuming or terminating party or the Trust Fund, upon the
assumption by such party of the obligations of the Master Servicer pursuant to
Section 8.05.

         Any Servicing Agreement, and any other transactions or services
relating to the Mortgage Loans involving a Servicer, shall be deemed to be
between the Master Servicer and such Servicer alone, and the Trustee and the
Certificateholders shall not be deemed parties thereto and shall have no claims
or rights of action against, rights, obligations, duties or liabilities to or
with respect to the Servicer or its officers, directors or employees, except as
set forth in Section 3.01.

         SECTION 3.03.     Fidelity Bond; Errors and Omissions Insurance. The 
Master Servicer shall maintain, at its own expense, a blanket fidelity bond and
an errors and omissions insurance policy, with broad coverage on all officers,
employees or other persons acting in any capacity requiring such persons to
handle funds, money, documents or papers relating to the Mortgage Loans. These
policies must insure the Master Servicer against losses resulting from

                                       37
<PAGE>   44

dishonest or fraudulent acts committed by the Master Servicer's personnel, any
employees of outside firms that provide data processing services for the Master
Servicer, and temporary contract employees or student interns. Such fidelity
bond shall also protect and insure the Master Servicer against losses in
connection with the release or satisfaction of a Mortgage Loan without having
obtained payment in full of the indebtedness secured thereby. No provision of
this Section 3.03 requiring such fidelity bond and errors and omissions
insurance shall diminish or relieve the Master Servicer from its duties and
obligations as set forth in this Agreement. The minimum coverage under any such
bond and insurance policy shall be at least equal to the corresponding amounts
required by FNMA in the FNMA Servicing Guide or by FHLMC in the FHLMC Sellers' &
Servicers' Guide, as amended or restated from time to time, or in an amount as
may be permitted to the Master Servicer by express waiver of FNMA or FHLMC.

         SECTION 3.04.     Access to Certain Documentation. The Master Servicer 
shall provide to the OTS and the FDIC and to comparable regulatory authorities
supervising Holders of Subordinate Certificates and the examiners and
supervisory agents of the OTS, the FDIC and such other authorities, access to
the documentation regarding the Mortgage Loans required by applicable
regulations of the OTS and the FDIC. Such access shall be afforded without
charge, but only upon reasonable and prior written request and during normal
business hours at the offices designated by the Master Servicer. Nothing in this
Section 3.04 shall limit the obligation of the Master Servicer to observe any
applicable law and the failure of the Master Servicer to provide access as
provided in this Section 3.04 as a result of such obligation shall not
constitute a breach of this Section 3.04.

         SECTION 3.05.     Maintenance of Primary Mortgage Insurance Policy; 
Claims. With respect to each Mortgage Loan (except with respect to loan numbers
22009815 and 26310847) with an LTV in excess of 80% or such other LTV as may be
required by law, the Master Servicer shall, without any cost to the Trust Fund,
maintain or cause the Mortgagor to maintain in full force and effect a Primary
Insurance Policy insuring that portion of the Mortgage Loan in excess of a
percentage in conformity with FNMA requirements. The Master Servicer shall pay
or shall cause the Mortgagor to pay the premium thereon on a timely basis, at
least until the LTV of such Mortgage Loan is reduced to 80% or such other LTV as
may be required by law. If such Primary Insurance Policy is terminated, the
Master Servicer shall obtain from another insurer a comparable replacement
policy, with a total coverage equal to the remaining coverage of such terminated
Primary Insurance Policy. If the insurer shall cease to be an insurer acceptable
to FNMA, the Master Servicer shall notify the Trustee in writing, it being
understood that the Master Servicer shall not have any responsibility or
liability for any failure to recover under the Primary Insurance Policy for such
reason. If the Master Servicer determines that recoveries under the Primary
Insurance Policy are jeopardized by the financial condition of the insurer, the
Master Servicer shall obtain from another insurer which meets the requirements
of this Section 3.05 a replacement insurance policy. The Master Servicer shall
not take any action that would result in noncoverage under any applicable
Primary Insurance Policy of any loss that, but for the actions of the Master
Servicer, would have been covered thereunder. In connection with any assumption
or substitution agreement entered into or to be entered into pursuant to Section
3.13, the Master Servicer shall promptly notify the insurer under the related
Primary Insurance Policy, if any, of such assumption or substitution of
liability in accordance with the terms of such Primary Insurance Policy and
shall take all actions which may be required by such insurer as a condition to
the continuation of coverage under such Primary Insurance Policy. If such
Primary Insurance Policy is terminated as a result of such

                                       38
<PAGE>   45

assumption or substitution of liability, the Master Servicer shall obtain a
replacement Primary Insurance Policy as provided above.

         In connection with its activities as master servicer, the Master
Servicer agrees to prepare and present, on behalf of itself, the Trustee and the
Certificateholders, claims to the insurer under any Primary Insurance Policy in
a timely fashion in accordance with the terms of such Primary Insurance Policy
and, in this regard, to take such action as shall be necessary to permit
recovery under any Primary Insurance Policy respecting a defaulted Mortgage
Loan. Pursuant to Section 3.09(a), any amounts collected by the Master Servicer
under any Primary Insurance Policy shall be deposited in the Escrow Account,
subject to withdrawal pursuant to Section 3.09(b).

         SECTION 3.06.     Rights of the Sponsor and the Trustee in Respect of 
the Master Servicer. The Sponsor may, but is not obligated to, enforce the
obligations of the Master Servicer hereunder and may, but is not obligated to,
perform, or cause a designee to perform, any defaulted obligation of the Master
Servicer hereunder and in connection with any such defaulted obligation to
exercise the related rights of the Master Servicer hereunder; provided that the
Master Servicer shall not be relieved of any of its obligations hereunder by
virtue of such performance by the Sponsor or its designee. Neither the Trustee
nor the Sponsor shall have any responsibility or liability for any action or
failure to act by the Master Servicer nor shall the Trustee or the Sponsor be
obligated to supervise the performance of the Master Servicer hereunder or
otherwise.

         SECTION 3.07.     Trustee to Act as Master Servicer. If the Master 
Servicer shall for any reason no longer be the Master Servicer hereunder
(including by reason of an Event of Default), the Trustee shall thereupon
assume, if it so elects, or shall appoint a successor Master Servicer to assume,
all of the rights and obligations of the Master Servicer hereunder arising
thereafter (except that the Trustee shall not be (a) liable for losses of the
Master Servicer pursuant to Section 3.12 or any acts or omissions of the
predecessor Master Servicer hereunder, (b) obligated to make Advances if it is
prohibited from doing so by applicable law or (c) deemed to have made any
representations and warranties of the Master Servicer hereunder). Any such
assumption shall be subject to Section 7.02. If the Master Servicer shall for
any reason no longer be the Master Servicer (including by reason of any Event of
Default), the Trustee or the successor Master Servicer may elect to succeed to
any rights and obligations of the Master Servicer under each Servicing Agreement
or may terminate each Servicing Agreement. If it has elected to assume the
Servicing Agreement, the Trustee or the successor Master Servicer shall be
deemed to have assumed all of the Master Servicer's interest therein and to have
replaced the Master Servicer as a party to any Servicing Agreement entered into
by the Master Servicer as contemplated by Section 3.02 to the same extent as if
the Servicing Agreement had been assigned to the assuming party except that the
Master Servicer shall not be relieved of any liability or obligations under any
such Servicing Agreement.

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

                                       39
<PAGE>   46

         SECTION 3.08.     Collection of Mortgage Loan Payments; Collection 
Account and Distribution Account.

         (a) Continuously from the date hereof until the principal and interest
on all Mortgage Loans are paid in full, the Master Servicer will proceed
diligently, in accordance with this Agreement, to collect all payments due under
each of the Mortgage Loans when the same shall become due and payable. Further,
the Master Servicer will in accordance with all applicable law and Customary
Servicing Procedures ascertain and estimate taxes, assessments, fire and hazard
insurance premiums, mortgage insurance premiums and all other charges that, as
provided in any Mortgage, will become due and payable to the end that the
installments payable by the Mortgagors will be sufficient to pay such charges as
and when they become due and payable. Consistent with the foregoing, the Master
Servicer may in its discretion (i) waive any late payment charge or any
prepayment charge or penalty interest in connection with the prepayment of a
Mortgage Loan and (ii) extend the due dates for payments due on a Mortgage Note
for a period not greater than 120 days; provided, however, that the Master
Servicer cannot extend the maturity of any such Mortgage Loan past the date on
which the final payment is due on the latest maturing Mortgage Loan as of the
Cut-Off Date. In the event of any such arrangement, the Master Servicer shall
make Monthly Advances on the related Mortgage Loan in accordance with the
provisions of Section 3.20 during the scheduled period in accordance with the
amortization schedule of such Mortgage Loan without modification thereof by
reason of such arrangements. The Master Servicer shall not be required to
institute or join in litigation with respect to collection of any payment
(whether under a Mortgage, Mortgage Note or otherwise or against any public or
governmental authority with respect to a taking or condemnation) if it
reasonably believes that enforcing the provision of the Mortgage or other
instrument pursuant to which such payment is required is prohibited by
applicable law.

         (b) The Master Servicer shall establish and maintain the Collection
Account. The Master Servicer shall deposit or cause to be deposited into the
Collection Account on a daily basis within one Business Day of receipt, except
as otherwise specifically provided herein, the following payments and
collections remitted by Servicers or received by it in respect of Mortgage Loans
subsequent to the Cut-Off Date (other than in respect of principal and interest
due on the Mortgage Loans on or before the Cut-Off Date) and the following
amounts required to be deposited hereunder:

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

                  (ii) all payments on account of interest on the Mortgage
         Loans, net of the Master Servicing Fee;

                  (iii) (A) all Insurance Proceeds and Liquidation Proceeds,
         other than Insurance Proceeds to be (1) applied to the restoration or
         repair of the Mortgaged Property, (2) released to the Mortgagor in
         accordance with Customary Servicing Procedures or (3) required to be
         deposited to an Escrow Account pursuant to Section 3.09(a) and (B) any
         Insurance Proceeds released from an Escrow Account pursuant to Section
         3.09(b)(iv);

                                       40
<PAGE>   47

                  (iv) any amount required to be deposited by the Master
         Servicer pursuant to Section 3.08(d) in connection with any losses on
         Permitted Investments with respect to the Collection Account;

                  (v)  any amounts required to be deposited by the Master 
         Servicer pursuant to Section 3.14;

                  (vi) all Purchase Prices and all Substitution Adjustment
         Amounts received by the Master Servicer;

                  (vii)  all Monthly Advances made by the Master Servicer
         pursuant to Section 3.20 and any payments of Compensating Interest; and

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

         The foregoing requirements for remittance by the Master Servicer shall
be exclusive, it being understood and agreed that, without limiting the
generality of the foregoing, payments in the nature of prepayment penalties,
late payment charges or assumption fees, if collected, need not be remitted by
the Master Servicer. In the event that the Master Servicer shall remit any
amount not required to be remitted, it may at any time withdraw or direct the
institution maintaining the Collection Account to withdraw such amount from the
Collection Account, any provision herein to the contrary notwithstanding. The
Master Servicer shall maintain adequate records with respect to all withdrawals
made pursuant to this Section 3.08. All funds required to be deposited in the
Collection Account shall be held in trust for the Certificateholders until
withdrawn in accordance with Section 3.11.

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

                  (i) the aggregate amount remitted by the Master Servicer to 
         the Trustee pursuant to Section 3.11(a)(viii);

                  (ii) any amount paid by the Master  Servicer  pursuant to
         Section 3.08(d) in connection with any losses on Permitted Investments
         with respect to the Distribution Account; and

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

         If the Master Servicer shall remit any amount not required to be
remitted, it may at any time direct the Trustee to withdraw such amount from the
Distribution Account, any provision herein to the contrary notwithstanding. Such
direction may be accomplished by delivering an Officer's Certificate to the
Trustee which describes the amounts deposited in error in the Distribution
Account. All funds required to be deposited in the Distribution Account shall be
held by the Trustee in trust for the Certificateholders until disbursed in
accordance with this Agreement or

                                       41
<PAGE>   48

withdrawn in accordance with Section 3.11. In no event shall the Trustee incur
liability for withdrawals from the Distribution Account at the direction of the
Master Servicer.

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

         (e) The Master Servicer shall give notice to the Trustee of any
proposed change of the location of the Collection Account not later than 30 days
and not more than 45 days prior to any change thereof. The Trustee shall give
notice to the Master Servicer, the Seller, each Rating Agency and the Sponsor of
any proposed change of the location of the Distribution Account not later than
30 days and not more than 45 days prior to any change thereof. The creation of
any Collection Account shall be evidenced by a certification substantially in
the form of Exhibit G hereto. A copy of such certification or letter agreement
shall be furnished to the Trustee.

         SECTION 3.09.     Collection of Taxes, Assessments and Similar Items; 
Escrow Accounts.

         (a) To the extent required by the related Mortgage Note and not
violative of current law, the Master Servicer shall segregate and hold all funds
collected and received pursuant to each Mortgage Loan which constitute Escrow
Payments in trust separate and apart from any of its own funds and general
assets and for such purpose shall establish and maintain one or more escrow
accounts (collectively, the "Escrow Account"), titled "NationsBanc Mortgage
Corporation, in trust for registered holders of NationsBanc Montgomery Funding
Corp. Mortgage Pass-Through Certificates, Series 1998-1 and various Mortgagors".
The Escrow Account shall be established with a commercial bank, a savings bank
or a savings and loan association that meets the guidelines set forth by FNMA or
FHLMC as an eligible institution for escrow accounts and which is a member of
the Automated Clearing House. In any case, the Escrow Account shall be insured
by the FDIC to the fullest extent permitted by law. The Master Servicer shall
deposit in the Escrow Account on a

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<PAGE>   49

daily basis, and retain therein: (i) all Escrow Payments collected on account of
the Mortgage Loans, for the purpose of effecting timely payment of any such
taxes as required under the terms of this Agreement, (ii) all amounts
representing proceeds of any hazard insurance policy which are to be applied to
the restoration or repair of any Mortgaged Property and (iii) all amounts
representing proceeds of any Primary Insurance Policy. Nothing herein shall
require the Master Servicer to compel a Mortgagor to establish an Escrow Account
in violation of applicable law.

         (b) Withdrawals of amounts so collected from the Escrow Accounts may be
made by the Master Servicer only (i) to effect timely payment of taxes,
assessments, mortgage insurance premiums, fire and hazard insurance premiums,
condominium or PUD association dues, or comparable items constituting Escrow
Payments for the related Mortgage, (ii) to reimburse the Master Servicer out of
related Escrow Payments made with respect to a Mortgage Loan for any Servicing
Advance made by the Master Servicer pursuant to Section 3.09(c) with respect to
such Mortgage Loan, (iii) to refund to any Mortgagor any sums determined to be
overages, (iv) for transfer to the Collection Account upon default of a
Mortgagor or in accordance with the terms of the related Mortgage Loan and if
permitted by applicable law, (v) for application to restore or repair the
Mortgaged Property, (vi) to pay to the Mortgagor, to the extent required by law,
any interest paid on the funds deposited in the Escrow Account, (vii) to pay to
itself any interest earned on funds deposited in the Escrow Account (and not
required to be paid to the Mortgagor), (viii) to the extent permitted under the
terms of the related Mortgage Note and applicable law, to pay late fees with
respect to any Monthly Payment which is received after the applicable grace
period, (ix) to withdraw suspense payments that are deposited into the Escrow
Account, (x) to withdraw any amounts inadvertently deposited in the Escrow
Account or (xi) to clear and terminate the Escrow Account upon the termination
of this Agreement in accordance with Section 10.01. Any Escrow Account shall not
be a part of the Trust Fund.

         (c) With respect to each Mortgage Loan, the Master Servicer shall
maintain accurate records reflecting the status of taxes, assessments and other
charges which are or may become a lien upon the Mortgaged Property and the
status of Primary Insurance Policy premiums and fire and hazard insurance
coverage. The Master Servicer shall obtain, from time to time, all bills for the
payment of such charges (including renewal premiums) and shall effect payment
thereof prior to the applicable penalty or termination date and at a time
appropriate for securing maximum discounts allowable, employing for such purpose
deposits of the Mortgagor in the Escrow Account, if any, which shall have been
estimated and accumulated by the Master Servicer in amounts sufficient for such
purposes, as allowed under the terms of the Mortgage. To the extent that a
Mortgage does not provide for Escrow Payments, the Master Servicer shall
determine that any such payments are made by the Mortgagor. The Master Servicer
assumes full responsibility for the timely payment of all such bills and shall
effect timely payments of all such bills irrespective of each Mortgagor's
faithful performance in the payment of same or the making of the Escrow
Payments. The Master Servicer shall advance any such payments that are not
timely paid, but the Master Servicer shall be required so to advance only to the
extent that such Servicing Advances, in the good faith judgment of the Master
Servicer, will be recoverable by the Master Servicer out of Insurance Proceeds,
Liquidation Proceeds or otherwise.

         SECTION 3.10.     Access to Certain Documentation and Information 
Regarding the Mortgage Loans. The Master Servicer shall afford the Trustee
reasonable access to all records and

                                       43
<PAGE>   50

documentation regarding the Mortgage Loans and all accounts, insurance
information and other matters relating to this Agreement, such access being
afforded without charge, but only upon reasonable request and during normal
business hours at the office designated by the Master Servicer.

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

         SECTION 3.11.     Permitted Withdrawals from the Collection Account and
Distribution Account.

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

                  (i) to pay to the Master Servicer (to the extent not
         previously retained), the servicing compensation to which it is
         entitled pursuant to Section 3.17, and to pay to the Master Servicer,
         as additional master servicing compensation, earnings on or investment
         income with respect to funds in or credited to the Collection Account;

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

                  (iii) to reimburse the Master Servicer for any Nonrecoverable
         Advance previously made, it being understood that, in the case of any
         such reimbursement, the Master Servicer's right thereto shall be prior
         to the rights of the Trust unless the Master Servicer is also the
         Seller and the Seller is required to purchase a Mortgage Loan pursuant
         to Section 2.02, 2.03 or 2.08, in which case the Master Servicer's
         right to such reimbursement shall be subsequent to the payment to the
         Trust of the Purchase Price and all other amounts required to be paid
         to the Trust with respect to such Mortgage Loan;

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

                  (v) to pay to the purchaser, with respect to each Mortgage
         Loan or REO Property that has been purchased pursuant to Section 2.02,
         2.03 or 2.08, all amounts received thereon after the date of such
         purchase;

                  (vi) to reimburse the Master Servicer or the Sponsor for
         expenses incurred by any of them and reimbursable pursuant to Section
         7.03;

                                       44
<PAGE>   51

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

                  (viii) on or prior to the Distribution Account Deposit Date,
         to withdraw an amount equal to the related Available Funds, the related
         Trustee Fee and any other amounts due to the Trustee under this
         Agreement for such Distribution Date, to the extent on deposit, and
         remit such amount to the Trustee for deposit in the Distribution
         Account; and

                  (ix) to clear and terminate the Collection Account upon
         termination of this Agreement pursuant to Section 10.01.

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

         (b) The Trustee shall withdraw funds from the Distribution Account for
distributions to Certificateholders in the manner specified in this Agreement.
In addition, the Trustee may from time to time make withdrawals from the
Distribution Account for the following purposes:

                  (i) to pay to itself the Trustee Fee and any other amounts due
         to the Trustee under this Agreement for the related Distribution Date;

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

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

                  (iv) to clear and terminate the Distribution Account upon
         termination of the Agreement pursuant to Section 10.01.

         SECTION 3.12.     Maintenance of Hazard Insurance. The Master Servicer
shall cause to be maintained for each Mortgage Loan fire and hazard insurance
with extended coverage customary in the area where the Mortgaged Property is
located in an amount which is at least equal to the lesser of (a) the full
insurable value of the Mortgaged Property or (b) the greater of (i) the
outstanding principal balance owing on the Mortgage Loan and (ii) an amount such
that the proceeds of such insurance shall be sufficient to avoid the application
to the Mortgagor or loss payee of any coinsurance clause under the policy. If
the Mortgaged Property is in an area identified in the Federal Register by the
Federal Emergency Management Agency as having special flood hazards (and such
flood insurance has been made available) the Master Servicer will cause to be
maintained a flood insurance policy meeting the requirements of the current
guidelines of the Federal Insurance Administration and the requirements of FNMA
or FHLMC. The Master Servicer

                                       45
<PAGE>   52

shall also maintain on REO Property, fire and hazard insurance with extended
coverage in an amount which is at least equal to the maximum insurable value of
the improvements which are a part of such property, liability insurance and, to
the extent required, flood insurance in an amount required above. Any amounts
collected by the Master Servicer under any such policies (other than amounts to
be deposited in the Escrow Account and applied to the restoration or repair of
the property subject to the related Mortgage or property acquired in liquidation
of the Mortgage Loan, or to be released to the Mortgagor in accordance with
Customary Servicing Procedures) shall be deposited in the Collection Account,
subject to withdrawal pursuant to Section 3.11(a). It is understood and agreed
that no earthquake or other additional insurance need be required by the Master
Servicer of any Mortgagor or maintained on REO Property, other than pursuant to
such applicable laws and regulations as shall at any time be in force and as
shall require such additional insurance. All policies required hereunder shall
be endorsed with standard mortgagee clauses with loss payable to the Master
Servicer, and shall provide for at least 30 days prior written notice of any
cancellation, reduction in amount or material change in coverage to the Master
Servicer.

         The hazard insurance policies for each Mortgage Loan secured by a unit
in a condominium development or planned unit development shall be maintained
with respect to such Mortgage Loan and the related development in a manner which
is consistent with FNMA requirements.

         SECTION 3.13.     Enforcement of Due-On-Sale Clauses; Assumption 
Agreements.

         (a) Except as otherwise provided in this Section 3.13, when any
Mortgaged Property subject to a Mortgage has been conveyed by the Mortgagor, the
Master Servicer shall use reasonable efforts, to the extent that it has actual
knowledge of such conveyance, to enforce any due-on-sale clause contained in any
Mortgage Note or Mortgage, to the extent permitted under applicable law and
governmental regulations, but only to the extent that such enforcement will not
adversely affect or jeopardize coverage under any Required Insurance Policy.
Notwithstanding the foregoing, the Master Servicer is not required to exercise
such rights with respect to a Mortgage Loan if the Person to whom the related
Mortgaged Property has been conveyed or is proposed to be conveyed satisfies the
terms and conditions contained in the Mortgage Note and Mortgage related thereto
and the consent of the mortgagee under such Mortgage Note or Mortgage is not
otherwise required under such Mortgage Note or Mortgage as a condition to such
transfer. If (i) the Master Servicer is prohibited by law from enforcing any
such due-on-sale clause, (ii) coverage under any Required Insurance Policy would
be adversely affected, (iii) the Mortgage Note does not include a due-on-sale
clause or (iv) nonenforcement is otherwise permitted hereunder, the Master
Servicer is authorized, subject to Section 3.13(b), to take or enter into an
assumption and modification agreement from or with the Person to whom such
Mortgaged Property has been or is about to be conveyed, pursuant to which such
Person becomes liable under the Mortgage Note and, unless prohibited by
applicable state law, the Mortgagor remains liable thereon; provided that the
Mortgage Loan shall continue to be covered (if so covered before the Master
Servicer enters such agreement) by the applicable Required Insurance Policies.
The Master Servicer, subject to Section 3.13(b), is also authorized with the
prior approval of the insurers under any Required Insurance Policies to enter
into a substitution of liability agreement with such Person, pursuant to which
the original Mortgagor is released from liability and such Person is substituted
as Mortgagor and becomes liable under the Mortgage Note. Notwithstanding the
foregoing, the Master Servicer shall not be deemed to be in default under this
Section 3.13 by reason of any transfer or assumption

                                       46
<PAGE>   53

which the Master Servicer reasonably believes it is restricted by law from
preventing, for any reason whatsoever.

         (b) Subject to the Master Servicer's duty to enforce any due-on-sale
clause to the extent set forth in Section 3.13(a), in any case in which a
Mortgaged Property has been conveyed to a Person by a Mortgagor, and such Person
is to enter into an assumption agreement or modification agreement or supplement
to the Mortgage Note or Mortgage that requires the signature of the Trustee, or
if an instrument of release signed by the Trustee is required releasing the
Mortgagor from liability on the Mortgage Loan, the Master Servicer shall prepare
and deliver or cause to be prepared and delivered to the Trustee for signature
and shall direct, in writing, the Trustee to execute the assumption agreement
with the Person to whom the Mortgaged Property is to be conveyed and such
modification agreement or supplement to the Mortgage Note or Mortgage or other
instruments as are reasonable or necessary to carry out the terms of the
Mortgage Note or Mortgage or otherwise to comply with any applicable laws
regarding assumptions or the transfer of the Mortgaged Property to such Person.
In no event shall the Trustee incur liability for executing any document under
this Section 3.13 at the direction of the Master Servicer. In connection with
any such assumption, no material term of the Mortgage Note may be changed. In
addition, the substitute Mortgagor and the Mortgaged Property must be acceptable
to the Master Servicer in accordance with its underwriting standards as then in
effect. Together with each such substitution, assumption or other agreement or
instrument delivered to the Trustee for execution by it, the Master Servicer
shall deliver an Officer's Certificate signed by a Servicing Officer stating
that the requirements of this subsection have been met. The Master Servicer
shall notify the Trustee that any such substitution or assumption agreement has
been completed by forwarding to the Trustee (or at the direction of the Trustee,
the Custodian) the original of such substitution or assumption agreement, which
in the case of the original shall be added to the related Mortgage File and
shall, for all purposes, be considered a part of such Mortgage File to the same
extent as all other documents and instruments constituting a part thereof. Any
fee collected by the Master Servicer for entering into an assumption or
substitution of liability agreement may be retained by the Master Servicer as
additional master servicing compensation. Notwithstanding the foregoing, to the
extent permissible under applicable law and at the request of the Master
Servicer, the Trustee shall execute and deliver to the Master Servicer any
powers of attorney and other documents prepared by the Master Servicer that are
reasonably necessary or appropriate to enable the Master Servicer to execute any
assumption agreement or modification agreement required to be executed by the
Trustee under this Section 3.13.

         SECTION 3.14.     Realization Upon Defaulted Mortgage Loans; REO 
Property. The Master Servicer shall use reasonable efforts to foreclose upon or
otherwise comparably convert the ownership of Mortgaged Properties securing such
of the Mortgage Loans as come into and continue in default and as to which no
satisfactory arrangements can be made for collection of delinquent payments. In
connection with such foreclosure or other conversion, the Master Servicer shall
follow Customary Servicing Procedures and shall meet the requirements of the
insurer under any Required Insurance Policy. Notwithstanding the foregoing, the
Master Servicer shall not be required to expend its own funds in connection with
any foreclosure or towards the restoration of any Mortgaged Property unless it
shall determine (a) that such restoration and/or foreclosure will increase the
proceeds of liquidation of the Mortgage Loan after reimbursement to itself of
such expenses and (b) that such expenses will be recoverable to it through
proceeds of the liquidation of

                                       47
<PAGE>   54

the Mortgage Loan (respecting which it shall have priority for purposes of
withdrawals from the Collection Account). Any such expenditures shall constitute
Servicing Advances for purposes of this Agreement.

         The decision of the Master Servicer to foreclose on a defaulted
Mortgage Loan shall be subject to a determination by the Master Servicer that
the proceeds of such foreclosure would exceed the costs and expenses of bringing
such a proceeding.

         With respect to any REO Property, the deed or certificate of sale shall
be taken in the name of the Trustee for the benefit of the Certificateholders,
or its nominee, on behalf of the Certificateholders. The Trustee's name shall be
placed on the title to such REO Property solely as the Trustee hereunder and not
in its individual capacity. The Master Servicer shall ensure that the title to
such REO Property references the Agreement and the Trustee's capacity hereunder.
Pursuant to its efforts to sell such REO Property, the Master Servicer shall
either itself or through an agent selected by the Master Servicer manage,
conserve, protect and operate such REO Property in the same manner that it
manages, conserves, protects and operates other foreclosed property for its own
account and in the same manner that similar property in the same locality as the
REO Property is managed. Incident to its conservation and protection of the
interests of the Certificateholders, the Master Servicer may rent the same, or
any part thereof, as the Master Servicer deems to be in the best interest of the
Certificateholders for the period prior to the sale of such REO Property. The
Master Servicer shall prepare for and deliver to the Trustee a statement with
respect to each REO Property that has been rented, if any, showing the aggregate
rental income received and all expenses incurred in connection with the
management and maintenance of such REO Property at such times as is necessary to
enable the Trustee to comply with the reporting requirements of the REMIC
Provisions; provided, however, that the Master Servicer shall have no duty to
rent any REO Property on behalf of the Trust. The net monthly rental income, if
any, from such REO Property shall be deposited in the Collection Account no
later than the close of business on each Determination Date. The Master Servicer
shall perform the tax reporting and withholding required by Sections 1445 and
6050J of the Code with respect to foreclosures and abandonments, the tax
reporting required by Section 6050H of the Code with respect to the receipt of
mortgage interest from individuals and, if required by Section 6050P of the Code
with respect to the cancellation of indebtedness by certain financial entities,
by preparing such tax and information returns as may be required, in the form
required. The Master Servicer shall deliver copies of such reports to the
Trustee.

         If the Trust acquires any Mortgaged Property as described above or
otherwise in connection with a default or a default which is reasonably
foreseeable on a Mortgage Loan, the Master Servicer shall dispose of such
Mortgaged Property prior to three calendar years following the year of its
acquisition by the Trust (the "REO Disposition Period") unless (a) the Trustee
shall have been supplied by the Master Servicer with an Opinion of Counsel to
the effect that the holding by the Trust of such Mortgaged Property subsequent
to the REO Disposition Period will not result in the imposition of taxes on
"prohibited transactions" on the Subsidiary REMIC (as defined in Section 860F of
the Code) or cause the Subsidiary REMIC to fail to qualify as a REMIC at any
time that any Certificates are outstanding, or (b) the Trustee (at the Master
Servicer's expense) or the Master Servicer shall have applied for, prior to the
expiration of the REO Disposition Period, an extension of the REO Disposition
Period in the manner contemplated by Section 856(e)(3) of the Code. If

                                       48
<PAGE>   55

such an Opinion of Counsel is provided or such an exemption is obtained, the
Trust may continue to hold such Mortgaged Property (subject to any conditions
contained in such Opinion of Counsel) for the applicable period. Notwithstanding
any other provision of this Agreement, no Mortgaged Property acquired by the
Trust shall be rented (or allowed to continue to be rented) or otherwise used
for the production of income by or on behalf of the Trust in such a manner or
pursuant to any terms that would (i) cause such Mortgaged Property to fail to
qualify as "foreclosure property" within the meaning of Section 860G(a)(8) of
the Code or (ii) subject the REMIC to the imposition of any federal, state or
local income taxes on the income earned from such Mortgaged Property under
Section 860G(c) of the Code or otherwise, unless the Master Servicer has agreed
to indemnify and hold harmless the Trust with respect to the imposition of any
such taxes. The Master Servicer shall identify to the Trustee any Mortgaged
Property held by the Trust for 30 months for which no plans to dispose of such
Mortgaged Property by the Master Servicer have been made. After delivery of such
identification, the Master Servicer shall proceed to dispose of any such
Mortgaged Property by holding a commercially reasonable auction for such
property.

         The income earned from the management of any REO Properties, net of
reimbursement to the Master Servicer for expenses incurred (including any
property or other taxes) in connection with such management and net of
unreimbursed Master Servicing Fees, Monthly Advances and Servicing Advances,
shall be applied to the payment of principal of and interest on the related
defaulted Mortgage Loans (solely for the purposes of allocating principal and
interest, interest shall be treated as accruing as though such Mortgage Loans
were still current) and all such income shall be deemed, for all purposes in
this Agreement, to be payments on account of principal and interest on the
related Mortgage Notes and shall be deposited into the Collection Account. To
the extent the net income received during any calendar month is in excess of the
amount attributable to amortizing principal and accrued interest at the related
Mortgage Rate on the related Mortgage Loan for such calendar month, such excess
shall be considered to be a partial prepayment of principal of the related
Mortgage Loan.

         The proceeds from any liquidation of a Mortgage Loan, as well as any
income from an REO Property, will be applied in the following order of priority:
first, to reimburse the Master Servicer for any related unreimbursed Servicing
Advances and Master Servicing Fees; second, to reimburse the Master Servicer for
any unreimbursed Monthly Advances and to reimburse the Collection Account for
any Nonrecoverable Advances (or portions thereof) that were previously withdrawn
by the Master Servicer pursuant to Section 3.11(a)(iii) that related to such
Mortgage Loan; third, to accrued and unpaid interest (to the extent no Monthly
Advance has been made for such amount or any such Monthly Advance has been
reimbursed) on the Mortgage Loan or related REO Property, at the Mortgage Rate
to the Due Date occurring in the month in which such amounts are required to be
distributed; and fourth, as a recovery of principal of the Mortgage Loan. Excess
Proceeds, if any, from the liquidation of a Liquidated Mortgage Loan will be
retained by the Master Servicer as additional servicing compensation pursuant to
Section 3.17.

         SECTION 3.15.     Trustee to Cooperate; Release of Mortgage Files. Upon
the payment in full of any Mortgage Loan, or the receipt by the Master Servicer
of a notification that payment in full will be escrowed in a manner customary
for such purposes, the Master Servicer will immediately notify the Trustee (or,
at the direction of the Trustee, the Custodian) by delivering, or causing to be
delivered, two copies (one of which will be returned to the Master Servicer with
the
                                       49
<PAGE>   56

Mortgage File) of a Request for Release (which may be delivered in an electronic
format acceptable to the Trustee and the Master Servicer). Upon receipt of such
request, the Trustee or the Custodian, as applicable, shall within seven
Business Days release the related Mortgage File to the Master Servicer. The
Trustee shall at the Master Servicer's direction execute and deliver to the
Master Servicer the request for reconveyance, deed of reconveyance or release or
satisfaction of mortgage or such instrument releasing the lien of the Mortgage,
in each case provided by the Master Servicer, together with the Mortgage Note
with written evidence of cancellation thereon. Expenses incurred in connection
with any instrument of satisfaction or deed of reconveyance shall be chargeable
to the related Mortgagor. From time to time and as shall be appropriate for the
servicing or foreclosure of any Mortgage Loan, including for such purpose
collection under any policy of flood insurance, any fidelity bond or errors or
omissions policy, or for the purposes of effecting a partial release of any
Mortgaged Property from the lien of the Mortgage or the making of any
corrections to the Mortgage Note or the Mortgage or any of the other documents
included in the Mortgage File, the Trustee or the Custodian, as applicable,
shall, upon delivery to the Trustee (or, at the direction of the Trustee, the
Custodian) of a Request for Release signed by a Servicing Officer, release the
Mortgage File within seven Business Days to the Master Servicer. Subject to the
further limitations set forth below, the Master Servicer shall cause the
Mortgage File so released to be returned to the Trustee or the Custodian, as
applicable, when the need therefor by the Master Servicer no longer exists,
unless the Mortgage Loan is liquidated and the proceeds thereof are deposited in
the Collection Account, in which case the Master Servicer shall deliver to the
Trustee or the Custodian, as applicable a Request for Release, signed by a
Servicing Officer.

         The Trustee shall execute and deliver to the Master Servicer any powers
of attorney and other documents prepared by the Master Servicer that are
reasonably necessary or appropriate to enable the Master Servicer to carry out
its servicing and administrative duties under this Agreement, upon the request
of the Master Servicer. In addition, upon prepayment in full of any Mortgage
Loan or the receipt of notice that funds for such purpose have been placed in
escrow, the Master Servicer is authorized to give, as attorney-in-fact for the
Trustee and the mortgagee under the Mortgage, an instrument of satisfaction (or
Assignment of Mortgage without recourse) regarding the Mortgaged Property
relating to such Mortgage Loan, which instrument of satisfaction or Assignment
of Mortgage, as the case may be, shall be delivered to the Person entitled
thereto against receipt of the prepayment in full. In lieu of executing such
satisfaction or Assignment of Mortgage, or if another document is required to be
executed by the Trustee, the Master Servicer may deliver or cause to be
delivered to the Trustee, for signature, as appropriate, any court pleadings,
requests for trustee's sale or other documents necessary to effectuate such
foreclosure or any legal action brought to obtain judgment against the Mortgagor
on the Mortgage Note or the Mortgage or to obtain a deficiency judgment or to
enforce any other remedies or rights provided by the Mortgage Note or the
Mortgage or otherwise available at law or in equity.

         SECTION 3.16.     Documents, Records and Funds in Possession of the 
Master Servicer to be Held for the Trustee. The Master Servicer shall transmit
to the Trustee or, at the direction of the Trustee, the Custodian as required by
this Agreement all documents and instruments in respect of a Mortgage Loan
coming into the possession of the Master Servicer from time to time and shall
account fully to the Trustee for any funds received by the Master Servicer or
which otherwise are collected by the Master Servicer as Liquidation Proceeds or
Insurance Proceeds in respect of any Mortgage Loan. The documents constituting
the Servicing File shall be held by the

                                       50
<PAGE>   57

Master Servicer as custodian and bailee for the Trustee. All Mortgage Files and
funds collected or held by, or under the control of, the Master Servicer in
respect of any Mortgage Loans, whether from the collection of principal and
interest payments or from Liquidation Proceeds, including but not limited to,
any funds on deposit in the Collection Account, shall be held by the Master
Servicer for and on behalf of the Trustee and shall be and remain the sole and
exclusive property of the Trustee, subject to the applicable provisions of this
Agreement. The Master Servicer also agrees that it shall not knowingly create,
incur or subject any Mortgage File or any funds that are deposited in the
Collection Account, Distribution Account or any Escrow Account, or any funds
that otherwise are or may become due or payable to the Trustee for the benefit
of the Certificateholders, to any claim, lien, security interest, judgment,
levy, writ of attachment or other encumbrance created by the Master Servicer, or
assert by legal action or otherwise any claim or right of setoff against any
Mortgage File or any funds collected on, or in connection with, a Mortgage Loan,
except, however, that the Master Servicer shall be entitled to set off against
and deduct from any such funds any amounts that are properly due and payable to
the Master Servicer under this Agreement.

         SECTION 3.17.     Servicing Compensation. The Master Servicer shall be 
entitled out of each payment of interest on a Mortgage Loan (or portion thereof)
included in the Trust Fund to retain or withdraw from the Collection Account an
amount equal to the Master Servicing Fee for such Distribution Date.

         Additional master servicing compensation in the form of Excess
Proceeds, prepayment penalties, assumption fees, late payment charges and all
income and gain net of any losses realized from Permitted Investments and all
other customary and ancillary income and fees shall be retained by the Master
Servicer to the extent not required to be deposited in the Collection Account
pursuant to Section 3.08(b). The Master Servicer shall be required to pay all
expenses incurred by it in connection with its servicing activities hereunder
and shall not be entitled to reimbursement therefor except as specifically
provided in this Agreement.

         Notwithstanding the foregoing, with respect to the payment of the
Master Servicing Fee on any Distribution Date, the aggregate Master Servicing
Fee for such Distribution Date shall be reduced (but not below zero) by an
amount equal to the lesser of (a) such Prepayment Interest Shortfall for such
Distribution Date and (b) one-twelfth of 0.25% of the Pool Stated Principal
Balance for such Distribution Date (any such reduction, "Compensating
Interest").

         SECTION 3.18.     Annual Statement as to Compliance. The Master 
Servicer shall deliver to the Trustee and each Rating Agency on or before 75
days after the end of the Master Servicer's fiscal year, commencing with its
1998 fiscal year, an Officer's Certificate stating, as to the signer thereof,
that (a) a review of the activities of the Master Servicer during the preceding
calendar year and of the performance of the Master Servicer under this Agreement
has been made under such officer's supervision, and (b) to the best of such
officer's knowledge, based on such review, the Master Servicer has fulfilled all
its obligations under this Agreement throughout such year, or, if there has been
a default in the fulfillment of any such obligation, specifying each such
default known to such officer and the nature and status thereof.

         SECTION 3.19.     Annual Independent Public Accountants' Servicing 
Statement; Financial Statements. On or before 75 days after the end of the
Master Servicer's fiscal year,

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<PAGE>   58

commencing with its 1998 fiscal year, the Master Servicer, at its expense, shall
cause a firm of independent public accountants (who may also render other
services to the Master Servicer, the Seller or any affiliate thereof) which is a
member of the American Institute of Certified Public Accountants to furnish a
statement to the Trustee to the effect that such firm has with respect to the
Master Servicer's overall servicing operations, examined such operations in
accordance with the requirements of the Uniform Single Attestation Program for
Mortgage Bankers, stating such firm's conclusions relating thereto.

         SECTION 3.20.     Advances. The Master Servicer shall determine on or
before each Master Servicer Advance Date whether it is required to make a
Monthly Advance pursuant to the definition thereof. If the Master Servicer
determines it is required to make a Monthly Advance, it shall, on or before the
Master Servicer Advance Date, either (a) deposit into the Collection Account an
amount equal to the Advance and/or (b) make an appropriate entry in its records
relating to the Collection Account that any Amount Held for Future Distribution
has been used by the Master Servicer in discharge of its obligation to make any
such Monthly Advance. Any funds so applied shall be replaced by the Master
Servicer by deposit in the Collection Account no later than the close of
business on the Business Day preceding the next Master Servicer Advance Date.
The Master Servicer shall be entitled to be reimbursed from the Collection
Account for all Advances of its own funds made pursuant to this Section 3.20 as
provided in Section 3.11(a). The obligation to make Monthly Advances with
respect to any Mortgage Loan shall continue until the ultimate disposition of
the REO Property or Mortgaged Property relating to such Mortgage Loan. The
Master Servicer shall inform the Trustee of the amount of the Monthly Advance to
be made on each Master Servicer Advance Date no later than the related
Distribution Account Deposit Date.

         The Master Servicer shall deliver to the Trustee on the related Master
Servicer Advance Date an Officer's Certificate of a Servicing Officer indicating
the amount of any proposed Monthly Advance determined by the Master Servicer to
be a Nonrecoverable Advance. Notwithstanding anything to the contrary, the
Master Servicer shall not be required to make any Monthly Advance or Servicing
Advance that would be a Nonrecoverable Advance.

         SECTION 3.21.     Modifications, Waivers, Amendments and Consents.

         (a) Subject to this Section 3.21, the Master Servicer may agree to any
modification, waiver, forbearance, or amendment of any term of any Mortgage Loan
without the consent of the Trustee or any Certificateholder. All modifications,
waivers, forbearances or amendments of any Mortgage Loan shall be in writing and
shall be consistent with Customary Servicing Procedures.

         (b) The Master Servicer shall not agree to enter into, and shall not
enter into, any modification, waiver (other than a waiver referred to in Section
3.13, which waiver, if any, shall be governed by Section 3.13), forbearance or
amendment of any term of any Mortgage Loan if such modification, waiver,
forbearance, or amendment would:

                  (i) affect the amount or timing of any related payment of
         principal, interest or other amount payable thereunder; or

                                       52
<PAGE>   59

                  (ii) in the Master Servicer's judgment, materially impair the
         security for such Mortgage Loan or reduce the likelihood of timely
         payment of amounts due thereon;

unless, in either case, (A) such Mortgage Loan is 90 days or more past due or
(B) the Master Servicer delivers to the Trustee an Opinion of Counsel to the
effect that such modification, waiver, forbearance or amendment would not affect
the Trust Fund's REMIC status and, in either case, such modification, waiver,
forbearance or amendment is reasonably likely to produce a greater recovery with
respect to such Mortgage Loan than would liquidation. Subject to Customary
Servicing Procedures, the Master Servicer may permit a forbearance for a
Mortgage Loan which in the Master Servicer's judgment is subject to imminent
default.

         (c) Any payment of interest, which is deferred pursuant to any
modification, waiver, forbearance or amendment permitted hereunder, shall not,
for purposes hereof, including, without limitation, calculating monthly
distributions to Certificateholders, be added to the unpaid principal balance of
the related Mortgage Loan, notwithstanding that the terms of such Mortgage Loan
or such modification, waiver or amendment so permit.

         (d) The Master Servicer may, as a condition to granting any request by
a Mortgagor for consent, modification, waiver, forbearance or amendment, the
granting of which is within the Master Servicer's discretion pursuant to the
Mortgage Loan and is permitted by the terms of this Agreement, require that such
Mortgagor pay to the Master Servicer, as additional servicing compensation, a
reasonable or customary fee for the additional services performed in connection
with such request, together with any related costs and expenses incurred by the
Master Servicer, which amount shall be retained by the Master Servicer as
additional servicing compensation.

         (e) The Master Servicer shall notify the Trustee, in writing, of any
modification, waiver, forbearance or amendment of any term of any Mortgage Loan
and the date thereof, and shall deliver to the Trustee (or, at the direction of
the Trustee, the Custodian) for deposit in the related Mortgage File, an
original counterpart of the agreement relating to such modification, waiver,
forbearance or amendment, promptly (and in any event within ten Business Days)
following the execution thereof; provided, however, that if any such
modification, waiver, forbearance or amendment is required by applicable law to
be recorded, the Master Servicer (i) shall deliver to the Trustee a copy thereof
and (ii) shall deliver to the Trustee such document, with evidence of
notification upon receipt thereof from the public recording office.

         SECTION 3.22.     Reports to the Securities and Exchange Commission. 
The Trustee shall, on behalf of the Trust, cause to be filed with the Securities
and Exchange Commission any periodic reports required to be filed under the
provisions of the Securities Exchange Act of 1934, as amended, and the rules and
regulations of the Securities and Exchange Commission thereunder, for so long as
any Certificates registered under the 1933 Act are outstanding. Upon the request
of the Trustee, each of the Master Servicer and the Sponsor shall cooperate with
the Trustee in the preparation of any such report and shall provide to the
Trustee in a timely manner all such information or documentation as the Trustee
may reasonably request in connection with the performance of its duties and
obligations under this Section.


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<PAGE>   60

                                   ARTICLE IV

                          MASTER SERVICER'S CERTIFICATE

         SECTION 4.01.     Master Servicer's Certificate. Each month, not later 
than 12:00 noon Eastern time on the Business Day following each Determination
Date, the Master Servicer shall deliver to the Trustee, a Master Servicer's
Certificate (in substance and format mutually acceptable to the Master Servicer
and the Trustee) certified by a Servicing Officer. The Trustee may conclusively
rely upon the information contained in a Master Servicer's Certificate for all
purposes hereunder and shall have no duty to verify or re-compute any of the
information contained therein.

         Such statement shall be provided by the Trustee to any Holder of a
Certificate upon request and shall also, to the extent available, include
information regarding delinquencies on Mortgage Loans, indicating the number and
aggregate principal amount of Mortgage Loans which are either one, two, three or
more than three months delinquent and the book value of any REO Property.


                                    ARTICLE V

                           PAYMENTS AND STATEMENTS TO
                    CERTIFICATEHOLDERS; REMIC ADMINISTRATION

         SECTION 5.01.     Distributions. On each Distribution Date, the Trustee
shall distribute out of the Distribution Account to each Certificateholder of
record on the related Record Date (other than as provided in Section 10.01
respecting the final distribution) (a) by check mailed to such Certificateholder
entitled to receive a distribution on such Distribution Date at the address
appearing in the Certificate Register, or (b) upon written request by the Holder
of a Regular Certificate (in the event such Certificateholder owns of record
100% of a Class of Certificates or holds Certificates of any Class having
denominations aggregating $1,000,000 or more), by wire transfer or by such other
means of payment as such Certificateholder and the Trustee shall agree upon,
such Certificateholder's Percentage Interest in, the amount to which the related
Class of Certificates is entitled in accordance with the priorities set forth
below in Section 5.02.

         None of the Holders of any Class of Certificates, the Sponsor, the
Master Servicer or the Trustee shall in any way be responsible or liable to
Holders of any Class of Certificates in respect of amounts properly previously
distributed on any such Class.

         Amounts distributed with respect to any Class of Certificates shall be
applied first to the distribution of interest thereon and then to principal
thereon.

                                       54
<PAGE>   61

         SECTION 5.02.     Priorities of Distribution.

         (a) On each Distribution Date, the Trustee shall withdraw from the
Distribution Account (1) the amounts payable to the Trustee pursuant to Sections
3.11(b)(i) and 3.11(b)(ii) and shall pay such funds to itself, and (2) the
Available Funds, in an amount as specified in written notice received by the
Trustee from the Master Servicer no later than the related Determination Date,
and shall apply such funds to distributions on the Certificates in the following
order of priority and to the extent of Available Funds:

                  (i) to each Class of Senior Certificates (other than the Class
         A-PO Certificates), an amount allocable to interest equal to the
         Interest Distribution Amount for such Class, any shortfall being
         allocated among such Classes in proportion to the amount of the
         Interest Distribution Amount that would have been distributed in the
         absence of such shortfall;

                  (ii) to each Class of Senior Certificates, concurrently as
         follows:

                           (A) to the Class A-PO Certificates, up to the amount
                  of the PO Principal Amount, until the outstanding Class
                  Certificate Balance thereof has been reduced to zero; and

                           (B) on each Distribution Date prior to the Senior
                  Credit Support Depletion Date, the Non-PO Principal Amount, up
                  to the amount of the Senior Principal Distribution Amount for
                  such Distribution Date, will be distributed in the following
                  order of priority:

                                    (1) first, to the Residual Certificates pro 
                           rata, until the Class Certificate Balances thereof
                           have been reduced to zero;

                                    (2) second, to the Class A-16 Certificates,
                           up to the Class A-16 Principal Distribution Amount
                           for such Distribution Date, until the Class
                           Certificate Balance thereof has been reduced to zero;

                                    (3) third, concurrently:

                                            (I) 42.21774710% to the Class A-1
                                    Certificates;

                                            (II) 6.83388050% to the Class A-2
                                    Certificates, until the Class Certificate
                                    Balance thereof has been reduced to zero,
                                    and then to the Class A-10 Certificates;

                                            (III) 15.64260990% to the Class A-3
                                    Certificates;

                                            (IV) 6.42185433% to the Class A-4 
                                    Certificates;

                                            (V) 1.37611168% to the Class A-5 
                                    Certificates;

                                       55
<PAGE>   62

                                            (VI) 2.35373805% to the Class A-7 
                                    Certificates;

                                            (VII) 10.89317499% to the Class A-8
                                    Certificates; and

                                            (VIII) 14.26088346% to the Class A-9
                                    Certificates;

                           until the Class Certificate Balances of the Class
                           A-1, Class A-3, Class A-4, Class A-5 and Class A-10
                           Certificates have been reduced to zero;

                                    (4) fourth, concurrently:

                                            (I) 1.20073434% to the Class A-7
                                    Certificates;

                                            (II) 10.89317499% to the Class A-8 
                                    Certificates;

                                            (III) 27.94970975% to the Class A-9
                                    Certificates; and

                                            (IV) 59.95638092% to the Class A-11 
                                    Certificates;

                           until the Class Certificate Balances thereof have
                           been reduced to zero;

                                    (5) fifth, concurrently:

                                            (I) 34.72069429% to the Class A-12
                                    Certificates, until the Class Certificate
                                    Balance thereof has been reduced to zero,
                                    and then to the Class A-13 Certificates;

                                            (II)  34.72069429% to the Class A-14
                                    Certificates; and

                                            (III) 30.55861142% to the Class A-15
                                    Certificates;

                           until the Class Certificate Balances thereof have 
                           been reduced to zero; and

                                    (6) sixth, to the Class A-16 Certificates, 
                           until the Class Certificate Balance thereof has been 
                           reduced to zero;

                  (iii) to the Class A-PO Certificates, any Class A-PO Deferred
         Amount, up to the Subordinate Principal Distribution Amount actually
         received or advanced for such Distribution Date;

                  (iv) to each Class of Subordinate Certificates, subject to
         paragraph (d) below, in the following order of priority:

                           (A) to the Class B-1 Certificates, an amount
                  allocable to interest equal to the Interest Distribution
                  Amount for such Class for such Distribution Date;

                                       56
<PAGE>   63

                           (B) to the Class B-1 Certificates, an amount
                  allocable to principal equal to its Pro Rata Share for such
                  Distribution Date until the Class Certificate Balance thereof
                  is reduced to zero;

                           (C) to the Class B-2 Certificates, an amount
                  allocable to interest equal to the Interest Distribution
                  Amount for such Class for such Distribution Date;

                           (D) to the Class B-2 Certificates, an amount
                  allocable to principal equal to its Pro Rata Share for such
                  Distribution Date until the Class Certificate Balance thereof
                  is reduced to zero;

                           (E) to the Class B-3 Certificates, an amount
                  allocable to interest equal to the Interest Distribution
                  Amount for such Class for such Distribution Date;

                           (F) to the Class B-3 Certificates, an amount
                  allocable to principal equal to its Pro Rata Share for such
                  Distribution Date until the Class Certificate Balance thereof
                  is reduced to zero;

                           (G) to the Class B-4 Certificates, an amount
                  allocable to interest equal to the Interest Distribution
                  Amount for such Class for such Distribution Date;

                           (H) to the Class B-4 Certificates, an amount
                  allocable to principal equal to its Pro Rata Share for such
                  Distribution Date until the Class Certificate Balance thereof
                  is reduced to zero;

                           (I) to the Class B-5 Certificates, an amount
                  allocable to interest equal to the Interest Distribution
                  Amount for such Class for such Distribution Date;

                           (J) to the Class B-5 Certificates, an amount
                  allocable to principal equal to its Pro Rata Share for such
                  Distribution Date until the Class Certificate Balance thereof
                  is reduced to zero;

                           (K) to the Class B-6 Certificates, an amount
                  allocable to interest equal to the Interest Distribution
                  Amount for such Class for such Distribution Date; and

                           (L) to the Class B-6 Certificates, an amount
                  allocable to principal equal to its Pro Rata Share for such
                  Distribution Date until the Class Certificate Balance thereof
                  is reduced to zero; and

                  (v) to the Class R-I Certificates, any remaining funds in the
         Subsidiary REMIC and to the Class R-II Certificates, any remaining
         funds in the Master REMIC.

On any Distribution Date, amounts distributed in respect of Class A-PO Deferred
Amounts will not reduce the Class Certificate Balance of the Class A-PO
Certificates.

                                       57
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         (b) On each Distribution Date on or after the Senior Credit Support
Depletion Date, notwithstanding the allocation and priority set forth in Section
5.02(a)(ii)(B), the portion of Available Funds available to be distributed as
principal of the Senior Certificates (other than the Class A-PO Certificates)
shall be distributed concurrently, as principal, on such Classes, pro rata, on
the basis of their respective Class Certificate Balances, until the Class
Certificate Balances thereof are reduced to zero.

         (c) On each Distribution Date, Accrued Certificate Interest for each
Class of Certificates for such Distribution Date shall be reduced by such
Class's pro rata share, based on such Class's Interest Distribution Amount for
such Distribution Date without taking into account the allocation made by this
Section 5.02(c), of (A) Net Prepayment Interest Shortfalls, (B) any Excess
Losses allocable to interest, (C) on and after the Senior Credit Support
Depletion Date, any other Realized Loss allocable to interest and (D) each
Relief Act Reduction incurred during the calendar month preceding the month of
such Distribution Date.

         (d) Notwithstanding the priority and allocation contained in Section
5.02(a)(iv), if with respect to any Class of Subordinate Certificates on any
Distribution Date the sum of the Class Subordination Percentages of all Classes
of Subordinate Certificates which have a higher numerical Class designation than
such Class (the "Credit Support Percentage") is less than the Original Credit
Support Percentage for such Class, no distribution of principal will be made to
any Classes junior to such Class (the "Restricted Classes") and the amount
otherwise distributable to the Restricted Classes in respect to principal shall
be distributed to the Classes of Subordinate Certificates that are not
Restricted Classes, pro rata, based on their respective Class Certificate
Balances immediately prior to such Distribution Date, and shall be distributed
in the order provided in Section 5.02(a)(iv).

         (e) On each Distribution Date, Available Funds shall be applied to
distributions on the Subsidiary REMIC Regular Interests, in each case in an
amount sufficient to make the distributions on the respective Corresponding
Classes of Certificates on such Distribution Date in accordance with the
provisions of Section 5.02(a).

         SECTION 5.03.     Allocation of Losses.

         (a) On or prior to each Determination Date, the Master Servicer shall
inform the Trustee in writing: (1) whether any Realized Loss is a Deficient
Valuation, a Debt Service Reduction, a Fraud Loss or a Special Hazard Loss, (2)
of the amount of such loss or Deficient Valuation, or of the terms of such Debt
Service Reduction and (3) of the total amount of Realized Losses. Based on such
information, the Trustee shall determine the total amount of Realized Losses,
including Excess Losses, with respect to the related Distribution Date.

         Realized Losses with respect to any Distribution Date shall be
allocated as follows:

                  (i) the applicable PO Percentage of any Realized Loss with
         respect to a Discount Mortgage Loan, including any Excess Loss, shall
         be allocated to the Class A-PO Certificates until the Class Certificate
         Balance thereof is reduced to zero; and

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<PAGE>   65

                  (ii) (1) the applicable Non-PO Percentage of any Realized Loss
                  (other than an Excess Loss) shall be allocated first to the
                  Subordinate Certificates in reverse order of their respective
                  numerical Class designations (beginning with the Class of
                  Subordinate Certificates then outstanding with the highest
                  numerical Class designation) until the respective Class
                  Certificate Balance of each such Class is reduced to zero, and
                  second to the Senior Certificates (other than the Notional
                  Amount Certificates and the Class A-PO Certificates), pro
                  rata, on the basis of their respective Class Certificate
                  Balances immediately prior to the related Distribution Date
                  until the Class Certificate Balances thereof have been reduced
                  to zero; and

                           (2) the applicable Non-PO Percentage of any Excess
                  Losses shall be allocated to the Senior Certificates (other
                  than the Notional Amount Certificates and the Class A-PO
                  Certificates) and the Subordinate Certificates then
                  outstanding, pro rata, on the basis of their respective Class
                  Certificate Balances.

         (b) The Class Certificate Balance of the Class of Subordinate
Certificates then outstanding with the highest numerical Class designation shall
be reduced on each Distribution Date by the amount, if any, by which the
aggregate of the Class Certificate Balances of all outstanding Classes of
Certificates (after giving effect to the distribution of principal and the
allocation of Realized Losses and Class A-PO Deferred Amounts on such
Distribution Date) exceeds the Pool Stated Principal Balance for the following
Distribution Date.

         (c) Any Realized Loss allocated to a Class of Certificates or any
reduction in the Class Certificate Balance of a Class of Certificates pursuant
to Section 5.03(b) above shall be allocated among the Certificates of such Class
in proportion to their respective Percentage Interests.

         (d) Any allocation of Realized Losses to a Certificate or any reduction
in the Certificate Balance of a Certificate, pursuant to Section 5.03(b) above
shall be accomplished by reducing the Certificate Balance thereof prior to the
distributions made on the related Distribution Date in accordance with the
definition of "Certificate Balance."

         SECTION 5.04.     Statements to Certificateholders.

         (a) Prior to the Distribution Date in each month, based upon the
information provided to the Trustee on the Master Servicer's Certificate
delivered to the Trustee pursuant to Section 4.01, the Trustee shall determine
the following information with respect to such Distribution Date:

                  (i) the amount allocable to principal, separately identifying
         the aggregate amount of any Principal Prepayments and Liquidation
         Proceeds included therein;

                  (ii) the amount allocable to interest, any Class Unpaid
         Interest Shortfall included in such distribution and any remaining
         Class Unpaid Interest Shortfall after giving effect to such
         distribution;

                  (iii) if the distribution to the Holders of such Class of
         Certificates is less than the full amount that would be distributable
         to such Holders if there were sufficient funds

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<PAGE>   66
      
         available therefor, the amount of the shortfall and the allocation
         thereof as between principal and interest;

                  (iv) the Class Certificate Balance of each Class of
         Certificates after giving effect to the distribution of principal on
         such Distribution Date;

                  (v) the Pool Stated Principal Balance for the following
         Distribution Date;

                  (vi) the Senior Percentage, Class A-16 Percentage and 
         Subordinate Percentage for the following Distribution Date;

                  (vii) the amount of the Master Servicing Fees paid to or
         retained by the Master Servicer with respect to such Distribution Date;

                  (viii) the Pass-Through Rate for each such Class of
         Certificates with respect to such Distribution Date;

                  (ix) the amount of Monthly Advances included in the
         distribution on such Distribution Date and the aggregate amount of
         Monthly Advances outstanding as of the close of business on such
         Distribution Date;

                  (x) the number and aggregate principal amounts of Mortgage
         Loans (A) delinquent (exclusive of Mortgage Loans in foreclosure) (1) 1
         to 30 days (2) 31 to 60 days (3) 61 to 90 days and (4) 91 or more days
         and (B) in foreclosure, as of the close of business on the last day of
         the calendar month preceding such Distribution Date;

                  (xi) with respect to any Mortgage Loan that became an REO
         Property during the preceding calendar month, the loan number and
         Stated Principal Balance of such Mortgage Loan as of the close of
         business on the Determination Date preceding such Distribution Date and
         the date of acquisition thereof;

                  (xii) the total number and principal balance of any REO
         Properties (and market value, if available) as of the close of business
         on the Determination Date preceding such Distribution Date;

                  (xiii) the Senior Prepayment Percentage and the Subordinate 
         Prepayment Percentage for the following Distribution Date;

                  (xiv) the aggregate amount of Realized Losses incurred during
         the preceding calendar month and any Class A-PO Deferred Amounts for
         such Distribution Date; and

                  (xv) the Special Hazard Loss Coverage Amount, the Fraud Loss
         Coverage Amount and the Current Bankruptcy Coverage Amount, in each
         case as of the related Determination Date.

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<PAGE>   67

         (b) No later than each Distribution Date, the Trustee, based upon
information supplied to it on the Master Servicer's Certificate, shall prepare
and deliver (by mail, fax or electronically) to each Holder of a Certificate,
each Rating Agency and the Master Servicer a statement setting forth the
information set forth in Section 5.04(a).

         In the case of information furnished pursuant to clauses (i), (ii) and
(ix) of Section 5.04(a), the amounts shall be expressed as a dollar amount or
Notional Amount, as the case may be, per Certificate with a $1,000 denomination.

         On each Distribution Date, the Trustee shall prepare and furnish to
each Financial Market Publisher, in electronic or such other format and media
mutually agreed upon by the Trustee, the Financial Market Publisher and the
Sponsor, the information contained in the statement described in Section 5.04(a)
for such Distribution Date.

         Within a reasonable period of time after the end of each calendar year,
the Trustee shall furnish to each Person who at any time during the calendar
year was the Holder of a Certificate, if requested in writing by such Person, a
statement containing the information set forth in clauses (i), (ii) and (vii) of
Section 5.04(a), in each case aggregated for such calendar year or applicable
portion thereof during which such Person was a Certificateholder. Such
obligation of the Trustee shall be deemed to have been satisfied to the extent
that substantially comparable information shall be provided by the Trustee
pursuant to any requirements of the Code as from time to time in force.

         The Trustee shall deliver to the Holders of Certificates any reports or
information the Trustee is required by this Agreement or the Code, Treasury
Regulations or REMIC Provisions to deliver to the Holders of Certificates, and
the Trustee shall prepare and provide to the Certificateholders (by mail,
telephone, or publication as may be permitted by applicable Treasury
Regulations) such other reasonable information as the Trustee deems necessary or
appropriate or is required by the Code, Treasury Regulations, and the REMIC
Provisions including, but not limited to, (i) information to be reported to the
Holders of the Residual Certificates for quarterly notices on Schedule Q (Form
1066) (which information shall be forwarded to the Holders of the Residual
Certificates by the Trustee), (ii) information to be provided to the Holders of
Certificates with respect to amounts which should be included as interest and
original issue discount in such Holders' gross income and (iii) information to
be provided to all Holders of Certificates setting forth the percentage of each
REMIC's assets, determined in accordance with Treasury Regulations using a
convention, not inconsistent with Treasury Regulations, selected by the Trustee
in its absolute discretion, that constitute real estate assets under Section 856
of the Code, and assets described in Section 7701(a)(19)(C) of the Code;
provided, however, that in setting forth the percentage of such assets of each
REMIC, nothing contained in this Agreement, including without limitation Section
7.03 hereof, shall be interpreted to require the Trustee periodically to
appraise the fair market values of the assets of the Trust Fund or to indemnify
the Trust Fund or any Certificateholders from any adverse federal, state or
local tax consequences associated with a change subsequently required to be made
in the Sponsor's initial good faith determinations of such fair market values
(if subsequent determinations are required pursuant to the REMIC Provisions)
made from time to time.

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<PAGE>   68

         SECTION 5.05.     Tax Returns and Reports to Certificateholders.

         (a) For federal income tax purposes, the Master and Subsidiary REMICs
shall each have a calendar year taxable year and shall maintain their books on
the accrual method of accounting.

         (b) The Trustee shall prepare or cause to be prepared and shall file or
cause to be filed with the Internal Revenue Service and applicable state or
local tax authorities income tax information returns for each taxable year with
respect to each REMIC containing such information at the times and in the manner
as may be required by the Code or state or local tax laws, regulations, or
rules, and shall furnish or cause to be furnished to each REMIC and the
Certificateholders the schedules, statements or information at such times and in
such manner as may be required thereby. Within 30 days of the Closing Date, the
Trustee shall furnish or cause to be furnished to the Internal Revenue Service,
on Form 8811 or as otherwise required by the Code, the name, title, address and
telephone number of the person that Holders of the Certificates may contact for
tax information relating thereto, together with such additional information at
the time or times and in the manner required by the Code. Such federal, state,
or local income tax or information returns shall be signed by the Trustee, or
such other Person as may be required to sign such returns by the Code or state
or local tax laws, regulations, or rules.

         (c) In the first federal income tax return of each REMIC for its short
taxable year ending December 31, 1998, REMIC status shall be elected for such
taxable year and all succeeding taxable years.

         (d) The Trustee will maintain or cause to be maintained such records
relating to each REMIC, including but not limited to the income, expenses,
assets and liabilities of the Trust Fund, and the initial fair market value and
adjusted basis of the Trust Fund property and assets determined at such
intervals as may be required by the Code, as may be necessary to prepare the
foregoing returns, schedules, statements or information.

         SECTION 5.06.     Tax Matters Person. The Tax Matters Person shall have
the same duties with respect to each REMIC as those of a "tax matters partner"
under Subchapter C of Chapter 63 of Subtitle F of the Code. The Holder of the
Class R-I Certificate is hereby designated as the Tax Matters Person for the
Subsidiary REMIC. The Holder of the Class R-II Certificate is hereby designated
as the Tax Matters Person for the Master REMIC. By their acceptance of the Class
R-I or Class R-II Certificate, as applicable, each such Holder agrees to
irrevocably appoint the Trustee as their agent to perform all of the duties of
the Tax Matters Person for the Subsidiary REMIC and the Master REMIC.

         SECTION 5.07.     Rights of the Tax Matters Person in Respect of the 
Trustee. The Trustee shall afford the Tax Matters Person, upon reasonable notice
during normal business hours, access to all records maintained by the Trustee in
respect of its duties hereunder and access to officers of the Trustee
responsible for performing such duties. Upon request, the Trustee shall furnish
the Tax Matters Person with its most recent statement of condition publicly
available. The Trustee shall make available to the Tax Matters Person such
books, documents or records relating to the Trustee's services hereunder as the
Tax Matters Person shall reasonably request. The Tax

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<PAGE>   69

Matters Person shall not have any responsibility or liability for any action or
failure to act by the Trustee and is not obligated to supervise the performance
of the Trustee under this Agreement or otherwise.

         SECTION 5.08.     REMIC Related Covenants. For as long as the Trust 
shall exist, the Trustee shall act in accordance herewith to assure continuing
treatment of the Master REMIC and the Subsidiary REMIC as REMICs and avoid the
imposition of tax on such REMICs. In particular:

                  (a) The Trustee shall not create, or permit the creation of,
         any "interests" in either REMIC within the meaning of Code Section
         860D(a)(2) other than the interests represented by the Trust Fund, the
         Regular Certificates, the Subsidiary REMIC Interests and the Residual
         Certificates, respectively.

                  (b) Except as otherwise provided in the Code, the Sponsor and
         the Master Servicer shall not grant and the Trustee shall not accept
         property unless (i) substantially all of the property held in each
         REMIC constitutes either "qualified mortgages" or "permitted
         investments" as defined in Code Sections 860G(a)(3) and (5),
         respectively, and (ii) no property shall be contributed to either REMIC
         after the start-up day unless such grant would not subject the Trust
         Fund to the 100% tax on contributions to a REMIC after the start-up day
         of the REMIC imposed by Code Section 860G(d).

                  (c) The Trustee shall not accept on behalf of either REMIC any
         fee or other compensation for services and the Trustee shall not
         knowingly accept, and the Master Servicer shall not knowingly accept,
         on behalf of the Trust Fund any income from assets other than those
         permitted to be held by a REMIC.

                  (d) The Trustee shall not sell or permit the sale of all or
         any portion of the Mortgage Loans (other than in accordance with
         Sections 2.02, 2.03 or 2.08), unless such sale is pursuant to a
         "qualified liquidation" as defined in Code Section 860F(a)(4)(A) and in
         accordance with Article X.

                  (e) The Trustee shall maintain books with respect to the Trust
         on a calendar year taxable year and on an accrual basis.

         Neither the Master Servicer nor the Trustee shall engage in a
"prohibited transaction" (as defined in Code Section 860F(a)(2)), except that,
with the prior written consent of the Master Servicer and the Sponsor, the
Trustee may engage in the activities otherwise prohibited by the foregoing
paragraphs (b), (c) and (d); provided that the Master Servicer shall have
delivered to the Trustee an Opinion of Counsel to the effect that such
transaction will not result in the imposition of a tax on the Master REMIC or
Subsidiary REMIC and will not disqualify either the Master REMIC or Subsidiary
REMIC from treatment as a REMIC; and, provided further, that the Master Servicer
shall have demonstrated to the satisfaction of the Trustee that such action will
not adversely affect the rights of the Holders of the Certificates and the
Trustee and that such action will not adversely impact the rating of the
Certificates.

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<PAGE>   70

         SECTION 5.09.     Determination of Pass-Through Rates for LIBOR 
Certificates. On each LIBOR Determination Date so long as the LIBOR Certificates
are outstanding, the Trustee shall determine LIBOR for the next Interest Accrual
Period as follows:

                  (a) The Trustee will determine LIBOR on the basis of the
         British Bankers' Association Interest Settlement Rate for one-month
         deposits in U.S. dollars as found on page 3750 on the Dow Jones
         Telerate Service as of 11:00 a.m. (London Time) on such LIBOR
         Determination Date.

                  (b) If on any LIBOR Determination Date, the Trustee is unable
         to determine LIBOR on the basis of the method set froth in paragraph
         (a) above, LIBOR for the next Interest Accrual Period shall be the
         higher of (i) LIBOR as determined on the previous LIBOR Determination
         Date or (ii) the Reserve Interest Rate. The "Reserve Interest Rate"
         shall be the rate per annum which the Trustee determines to be either
         (i) the arithmetic mean (rounded upwards if necessary to the nearest
         whole multiple of 1/16%) of the one-month Eurodollar lending rate that
         New York City banks selected by the Trustee are quoting, on the
         relevant LIBOR Determination Date, to the principal London offices of
         at least two leading banks in the London interbank market or (ii) in
         the event that the Trustee can determine no such arithmetic mean, the
         lowest one-month Eurodollar lending rate that the New York City banks
         selected by the Trustee are quoting on such LIBOR Determination Date to
         leading European banks.

                  (c) If on any LIBOR Determination Date, the Trustee is
         required but is unable to determine the Reserve Interest Rate in the
         manner provided in paragraph (b) above, LIBOR for the next Interest
         Accrual Period shall be LIBOR as determined on the preceding LIBOR
         Determination Date, or, in the case of the first LIBOR Determination
         Date, the Initial LIBOR Rate.

         The Pass-Through Rate for each Class of LIBOR Certificates for each
Interest Accrual Period shall be determined by the Trustee on each LIBOR
Determination Date so long as the LIBOR Certificates are outstanding on the
basis of LIBOR and the respective formulae appearing in footnotes corresponding
to the LIBOR Certificates in the table relating to the Certificates in the
Preliminary Statement.

         In determining LIBOR, any Pass-Through Rate for the LIBOR Certificates
or any Reserve Interest Rate, the Trustee may conclusively rely and shall be
protected in relying upon the offered quotations (whether written, oral or on
the Telerate Screen) from the Dow Jones Telerate Service or the New York City
banks as to LIBOR or the Reserve Interest Rate, as appropriate, in effect from
time to time. The Trustee shall not have any liability or responsibility to any
Person for (A) the Trustee's selection of New York City banks for purposes of
determining any Reserve Interest Rate or (B) its inability, following a
good-faith reasonable effort, to obtain such quotations from the New York City
banks or to determine such arithmetic mean, all as provided for in this Section
5.09.

         The establishment of LIBOR and each Pass-Through Rate for the LIBOR
Certificates by the Trustee shall (in the absence of manifest error) be final,
conclusive and binding upon each Holder of a Certificate and the Trustee.


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                                   ARTICLE VI

                                THE CERTIFICATES

         SECTION 6.01.     The Certificates. The Classes of Senior Certificates 
and the Subordinate Certificates shall be substantially in the forms set forth
in Exhibits A, B, C and D (reverse of all Certificates) and shall, on original
issue, be executed by the Trustee and shall be countersigned and delivered by
the Trustee to or upon the order of the Sponsor upon receipt by the Trustee of
the documents specified in Section 2.01. The Senior Certificates (other than the
Class A-5, Class A-6, Class A-PO, Class R-I and Class R-II Certificates) shall
be available to investors in interests representing minimum dollar Certificate
Balances of $1,000 and integral multiples of $1 in excess thereof. The
Subordinate Certificates and the Class A-5, Class A-6 and Class A-PO
Certificates shall be available to investors in interests representing minimum
dollar Certificate Balances or Notional Amounts, as the case may be, of $25,000
and integral dollar multiples of $1 in excess thereof (except one Certificate of
such Class may be issued with a different Certificate Balance). The Residual
Certificates shall be in minimum denominations of $100. The Senior Certificates
(other than the Class A-PO and Class R Certificates) shall initially be issued
in book-entry form through the Depository and all other Classes of Certificates
shall initially be issued as in definitive, fully-registered form.

         The Certificates shall be executed by manual or facsimile signature on
behalf of the Trustee by an authorized officer or signatory. Certificates
bearing the manual or facsimile signatures of individuals who were, at the time
when such signatures were affixed, authorized to sign on behalf of the Trustee
shall bind the Trustee, notwithstanding that such individuals or any of them
have ceased to be so authorized prior to the execution and delivery of such
Certificates or did not hold such offices or positions at the date of such
Certificate. No Certificate shall be entitled to any benefit under this
Agreement, or be valid for any purpose, unless such Certificate shall have been
manually countersigned by the Trustee substantially in the form provided for
herein, and such countersignature upon any Certificate shall be conclusive
evidence, and the only evidence, that such Certificate has been duly
authenticated and delivered hereunder. All Certificates shall be dated the date
of their countersignature.

         SECTION 6.02.    Registration of Transfer and Exchange of Certificates.

         (a) The Trustee shall cause to be kept at an office or agency in the
city in which the Corporate Trust Office of the Trustee is located a Certificate
Register in which, subject to such reasonable regulations as it may prescribe,
the Trustee shall provide for the registration of Certificates and of transfers
and exchanges of Certificates as herein provided. The Trustee shall initially
serve as Certificate Registrar for the purpose of registering Certificates and
transfers and exchanges of Certificates as herein provided.

         (b) At the option of the Certificateholders, Certificates may be
exchanged for other Certificates of authorized denominations of a like Class,
tenor and aggregate Percentage Interest, upon surrender of the Certificates to
be exchanged at any such office or agency. Whenever any

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<PAGE>   72

Certificates are so surrendered for exchange, the Sponsor shall execute and the
Trustee shall authenticate, countersign and deliver the Certificates which the
Certificateholder making the exchange is entitled to receive. Every Certificate
presented or surrendered for transfer or exchange shall (if so required by the
Trustee or the Certificate Registrar) be duly endorsed by, or be accompanied by
a written instrument of transfer in form satisfactory to the Trustee and the
Certificate Registrar duly executed by, the Holder thereof or its attorney duly
authorized in writing.

         (c) (i) Except as provided in paragraph (c)(iii) below, the Book-Entry
         Certificates shall at all times remain registered in the name of the
         Depository or its nominee and at all times: (A) registration of the
         Certificates may not be transferred by the Trustee except to another
         Depository; (B) the Depository shall maintain book-entry records with
         respect to the Certificate Owners and with respect to ownership and
         transfers of such Book-Entry Certificates; (C) ownership and transfers
         of registration of the Book-Entry Certificates on the books of the
         Depository shall be governed by applicable rules established by the
         Depository; (D) the Depository may collect its usual and customary
         fees, charges and expenses from its Depository Participants; (E) the
         Trustee shall deal with the Depository as the representative of the
         Certificate Owners of the Book-Entry Certificates for purposes of
         exercising the rights of Holders under this Agreement, and requests and
         directions for and votes of the Depository shall not be deemed to be
         inconsistent if they are made with respect to different Certificate
         Owners; and (F) the Trustee may rely and shall be fully protected in
         relying upon information furnished by the Depository with respect to
         its Depository Participants and furnished by the Depository
         Participants with respect to indirect participating firms and persons
         shown on the books of such indirect participating firms as direct or
         indirect Certificate Owners.

                  (ii) All transfers by Certificate Owners of Book-Entry
         Certificates shall be made in accordance with the procedures
         established by the Depository Participant or brokerage firm
         representing such Certificate Owner. Each Depository Participant shall
         only transfer Book-Entry Certificates of Certificate Owners it
         represents or of brokerage firms for which it acts as agent in
         accordance with the Depository's normal procedures.

                  (iii) If (A) (1) the Depository or the Sponsor advises the
         Trustee in writing that the Depository is no longer willing or able to
         properly discharge its responsibilities as Depository, and (2) the
         Trustee or the Sponsor is unable to locate a qualified successor, (B)
         the Sponsor at its option advises the Trustee in writing that it elects
         to terminate the book-entry system through the Depository or (C) after
         the occurrence of an Event of Default, Certificate Owners representing
         at least 51% of the aggregate Class Certificate Balances of the
         Book-Entry Certificates together advise the Trustee and the Depository
         through the Depository Participants in writing that the continuation of
         a book-entry system through the Depository is no longer in the best
         interests of the Certificate Owners, the Trustee shall notify all
         Certificate Owners, through the Depository, of the occurrence of any
         such event and of the availability of definitive, fully registered
         Certificates (the "Definitive Certificates") to Certificate Owners
         requesting the same. Upon surrender to the Trustee of the related Class
         of Certificates by the Depository, accompanied by the instructions from
         the Depository for registration, the Trustee shall issue the Definitive
         Certificates. Neither the Master Servicer, the Sponsor nor the Trustee
         shall be liable for any delay in delivery of such

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<PAGE>   73

         instruction and may conclusively rely on, and shall be protected in
         relying on, such instructions. The Master Servicer shall provide the
         Trustee with an adequate inventory of certificates to facilitate the
         issuance and transfer of Definitive Certificates. Upon the issuance of
         Definitive Certificates, the Trustee shall recognize the Holders of the
         Definitive Certificates as Certificateholders hereunder.

         (d) No transfer of a Private Certificate shall be made unless such
transfer is exempt from the registration requirements of the 1933 Act, and any
applicable state securities laws or is made in accordance with the 1933 Act and
such laws. In the event of any such transfer, (i) unless such transfer is made
in reliance on Rule 144A under the 1933 Act, the Trustee or the Sponsor may
require a written Opinion of Counsel (which may be in-house counsel) acceptable
to and in form and substance reasonably satisfactory to the Trustee and the
Sponsor that such transfer may be made pursuant to an exemption, describing the
applicable exemption and the basis therefor, from the 1933 Act and such laws or
is being made pursuant to the 1933 Act and such laws, which Opinion of Counsel
shall not be an expense of the Trustee or the Sponsor and (ii) the Trustee shall
require a certificate from the Certificateholder desiring to effect such
transfer substantially in the form attached hereto as Exhibit I-1 and a
certificate from such Certificateholder's prospective transferee substantially
in the form attached hereto either as Exhibit I-2A or as Exhibit I-2B, which
certificates shall not be an expense of the Trustee or the Sponsor; provided
that the foregoing requirements under clauses (i) and (ii) shall not apply to a
transfer of a Private Certificate between or among the Sponsor, the Seller,
their affiliates or both. The Sponsor shall provide to any Holder of a Private
Certificate and any prospective transferees designated by any such Holder,
information regarding the related Certificates and the Mortgage Loans and such
other information as shall be necessary to satisfy the condition to eligibility
set forth in Rule 144A(d)(4) for transfer of any such certificate without
registration thereof under the 1933 Act pursuant to the registration exemption
provided by Rule 144A. The Holder of a Private Certificate desiring to effect
such transfer shall, and does hereby agree to, indemnify the Trustee and the
Sponsor against any liability that may result if the transfer is not so exempt
or is not made in accordance with such federal and state laws.

         (e) No transfer of an ERISA-Restricted Certificate shall be made unless
the Trustee shall have received either (i) a representation letter in the form
of Exhibit J from the transferee of such Certificate, which representation
letter shall not be an expense of the Sponsor, the Trustee or the Master
Servicer, or (ii) in the case of any ERISA-Restricted Certificate presented for
registration in the name of an employee benefit plan subject to ERISA and
Section 4975 of the Code (or comparable provisions of any subsequent
enactments), or an IRA, or a trustee or custodian of any such plan or IRA, an
Opinion of Counsel satisfactory to the Trustee and the Master Servicer to the
effect that the purchase or holding of such ERISA-Restricted Certificate will
not result in the assets of the Trust Fund being deemed to be "plan assets" and
subject to the prohibited transaction provisions of ERISA and the Code and will
not subject the Trustee, the Sponsor, the Seller or the Master Servicer to any
obligation in addition to those undertaken in this Agreement, which Opinion of
Counsel shall not be an expense of the Trustee or the Master Servicer.
Notwithstanding anything else to the contrary herein, any purported transfer of
an ERISA-Restricted Certificate to or on behalf of an employee benefit plan
subject to ERISA or to the Code, or an IRA without the delivery to the Trustee
and the Master Servicer of an Opinion of Counsel satisfactory to the Trustee and
the Master Servicer as described above shall be void and of no effect.

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<PAGE>   74

         To the extent permitted under applicable law (including, but not
limited to, ERISA), the Trustee shall be under no liability to any Person for
any registration of transfer of any ERISA-Restricted Certificate that is in fact
not permitted by this Section 6.02 or for making any payments due on such
Certificate to the Holder thereof or taking any other action with respect to
such Holder under the provisions of this Agreement so long as the transfer was
registered by the Trustee in accordance with the foregoing requirements.

         (f) Each Person who has or who acquires any Ownership Interest in a
Residual Certificate shall be deemed by the acceptance or acquisition of such
Ownership Interest to have agreed to be bound by the following provisions and to
have irrevocably appointed the Trustee or its designee as its attorney-in-fact
to negotiate the terms of any mandatory sale under clause (vi) below and to
execute all instruments of transfer and to do all other things necessary in
connection with any such sale, and the rights of each Person acquiring any
Ownership Interest in a Residual Certificate are expressly subject to the
following provisions:

                  (i) Each Person holding or acquiring any Ownership Interest in
         a Residual Certificate shall be a Permitted Transferee and shall
         promptly notify the Trustee of any change or impending change in its
         status as a Permitted Transferee.

                  (ii) No Person shall acquire an Ownership Interest in a
         Residual Certificate unless such Ownership Interest is a pro rata
         undivided interest.

                  (iii) In connection with any proposed transfer of any
         Ownership Interest in a Residual Certificate, the Trustee shall require
         delivery to it, in form and substance satisfactory to it, of an
         affidavit in the form of Exhibit K hereto from the proposed transferee
         to the effect that (A) such transferee is a Permitted Transferee and
         that it is not acquiring its Ownership Interest in the Residual
         Certificate that is the subject of the proposed transfer as a nominee,
         trustee or agent for any Person who is not a Permitted Transferee; and
         (B) such transferee is not an employee benefit plan subject to ERISA or
         a plan that is subject to Section 4975 of the Code and is not acting on
         behalf of such a plan.

                  (iv) Notwithstanding the delivery of an affidavit by a
         proposed transferee under clause (iii) above, if a Responsible Officer
         of the Trustee has actual knowledge that the proposed transferee is not
         a Permitted Transferee, no Transfer of any Ownership Interest in a
         Residual Certificate to such proposed transferee shall be effected.

                  (v) Any attempted or purported transfer of any Ownership
         Interest in a Residual Certificate in violation of the provisions of
         this Section 6.02 shall be absolutely null and void and shall vest no
         rights in the purported transferee. If any purported transferee shall,
         in violation of the provisions of this Section 6.02, become a Holder of
         a Residual Certificate, then the prior Holder of such Residual
         Certificate that is a Permitted Transferee shall, upon discovery that
         the registration of transfer of such Residual Certificate was not in
         fact permitted by this Section 6.02, be restored to all rights as
         Holder thereof retroactive to the date of registration of transfer of
         such Residual Certificate. The Trustee shall be under no liability to
         any Person for any registration of transfer of a Residual Certificate
         that is in fact not permitted by this Section 6.02 or for making any
         distributions due on such Residual Certificate to the Holder thereof or
         taking any other action with respect to such Holder under

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<PAGE>   75

         the provisions of the Agreement so long as the transfer was registered
         in accordance with this Section 6.02. The Trustee shall be entitled to
         recover from any Holder of a Residual Certificate that was in fact not
         a Permitted Transferee at the time such distributions were made all
         distributions made on such Residual Certificate. Any such distributions
         so recovered by the Trustee shall be distributed and delivered by the
         Trustee to the prior Holder of such Residual Certificate that is a
         Permitted Transferee.

                  (vi) If any Person other than a Permitted Transferee acquires
         any Ownership Interest in a Residual Certificate in violation of the
         restrictions in this Section 6.02, then the Trustee shall have the
         right but not the obligation, without notice to the Holder of such
         Residual Certificate or any other Person having an Ownership Interest
         therein, to arrange for the sale of such Residual Certificate. The
         proceeds of such sale, net of commissions (which may include
         commissions payable to the Trustee or its affiliates), expenses and
         taxes due, if any, will be remitted by the Trustee to the previous
         Holder of such Residual Certificate that is a Permitted Transferee,
         except that in the event that the Trustee determines that the Holder of
         such Residual Certificate may be liable for any amount due under this
         Section 6.02 or any other provisions of this Agreement, the Trustee may
         withhold a corresponding amount from such remittance as security for
         such claim. The terms and conditions of any sale under this clause (vi)
         shall be determined in the sole discretion of the Trustee, and it shall
         not be liable to any Person having an Ownership Interest in a Residual
         Certificate as a result of its exercise of such discretion.

                  (vii) If any Person other than a Permitted Transferee acquires
         any Ownership Interest in a Residual Certificate in violation of the
         restrictions in this Section 6.02, then the Trustee, based on
         information provided to the Trustee by the Master Servicer, will
         provide to the Internal Revenue Service, and to the Persons specified
         in Section 860E(e)(3) and (6) of the Code, information needed to
         compute the tax imposed under Section 860E(e) of the Code on transfers
         of residual interests to disqualified organizations. The expenses of
         the Trustee under this clause (vii) shall be reimbursable by the Trust.

         (g) The foregoing provisions of Section 6.02 (other than the provisions
of Sections 6.02(e) and 6.02(f)(iii)(B)) shall cease to apply to transfers
occurring on or after the date on which there shall have been delivered to the
Trustee, in form and substance satisfactory to the Trustee, (i) written
notification from each Rating Agency that the removal of the restrictions on
Transfer set forth in this Section 6.02 will not cause such Rating Agency to
downgrade its rating of the Certificates and (ii) an Opinion of Counsel to the
effect that such removal will not cause the Trust Fund to fail to qualify as a
REMIC.

         (h) No service charge shall be imposed for any transfer or exchange of
Certificates of any Class, but the Trustee may require payment of a sum
sufficient to cover any tax or governmental charge that may be imposed in
connection with any transfer or exchange of Certificates.

         (i) All Certificates surrendered for transfer and exchange shall be
destroyed by the Certificate Registrar.

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<PAGE>   76

         SECTION 6.03.     Mutilated, Destroyed, Lost or Stolen Certificates. If
(a) any mutilated Certificate is surrendered to the Certificate Registrar or the
Certificate Registrar receives evidence to its satisfaction of the destruction,
loss or theft of any Certificate, and (b) there is delivered to the Trustee, the
Sponsor and the Certificate Registrar such security or indemnity reasonably
satisfactory to each, to save each of them harmless, then, in the absence of
actual notice to the Trustee or the Certificate Registrar that such Certificate
has been acquired by a bona fide purchaser, the Trustee shall countersign and
deliver, in exchange for or in lieu of any such mutilated, destroyed, lost or
stolen Certificate, a new Certificate of like tenor, Class and Percentage
Interest but bearing a number not contemporaneously outstanding. Upon the
issuance of any new Certificate under this Section, the Trustee may require the
payment of a sum sufficient to cover any tax or other governmental charge that
may be imposed in relation thereto and any other expenses (including the fees
and expenses of the Trustee and the Certificate Registrar) connected therewith.
Any duplicate Certificate issued pursuant to this Section shall constitute
complete and indefeasible evidence of ownership in the Trust, as if originally
issued, whether or not the lost, stolen or destroyed Certificate shall be found
at any time.

         SECTION 6.04.     Persons Deemed Owners. Prior to due presentation of a
Certificate for registration of transfer, the Sponsor, the Master Servicer, the
Trustee, the Certificate Registrar and any agent of the Sponsor, the Master
Servicer, the Trustee or the Certificate Registrar may treat the Person in whose
name any Certificate is registered as the owner of such Certificate for the
purpose of receiving distributions pursuant to Section 5.01 and for all other
purposes whatsoever, and none of the Sponsor, the Master Servicer, the Trustee,
the Certificate Registrar or any agent of the Master Servicer, the Trustee or
the Certificate Registrar shall be affected by notice to the contrary.


                                   ARTICLE VII

                       THE SPONSOR AND THE MASTER SERVICER

         SECTION 7.01.     Respective Liabilities of the Sponsor and the Master 
Servicer. The Sponsor and the Master Servicer shall each be liable in accordance
herewith only to the extent of the obligations specifically and respectively
imposed upon and undertaken by the Sponsor and the Master Servicer herein. By
way of illustration and not limitation, the Sponsor is not liable for the
servicing and administration of the Mortgage Loans, nor is it obligated by
Section 8.01 to assume any obligations of the Master Servicer or to appoint a
designee to assume such obligations, nor is it liable for any other obligation
hereunder that it may, but is not obligated to, assume unless it elects to
assume such obligation in accordance herewith.

         SECTION 7.02.     Merger or Consolidation of the Sponsor or the Master
Servicer. The Sponsor and the Master Servicer will each keep in full effect its
existence, rights and franchises as a corporation under the laws of the state of
its incorporation, and will each obtain and preserve its qualification to do
business as a foreign corporation in each jurisdiction in which such
qualification is or shall be necessary to protect the validity and
enforceability of this Agreement, the Certificates or any of the Mortgage Loans
and to perform its respective duties under this Agreement.

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<PAGE>   77

         Any Person into which the Sponsor or the Master Servicer may be merged
or consolidated, or any corporation resulting from any merger or consolidation
to which the Sponsor or the Master Servicer shall be a party, or any Person
succeeding to the business of the Sponsor or the Master Servicer, shall be the
successor of the Sponsor or the Master Servicer, as the case may be, hereunder,
without the execution or filing of any paper or any further act on the part of
any of the parties hereto, anything herein to the contrary notwithstanding;
provided, however, that the successor or surviving Person to the Master Servicer
shall be qualified to service mortgage loans on behalf of FNMA or FHLMC.

         SECTION 7.03.     Limitation on Liability of the Sponsor, the Master
Servicer and Others. None of the Sponsor, the Master Servicer or any of the
directors, officers, employees or agents of the Sponsor or of the Master
Servicer shall be under any liability to the Trust Fund or the
Certificateholders for any action taken or for refraining from the taking of any
action in good faith pursuant to this Agreement, or for errors in judgment;
provided, however, that this provision shall not protect the Sponsor, the Master
Servicer or any such person against any breach of warranties or representations
made herein or any liability which would otherwise be imposed by reason of
willful misfeasance, bad faith or gross negligence in the performance of duties
or by reason of reckless disregard of obligations and duties hereunder. The
Sponsor, the Master Servicer and any director, officer, employee or agent of the
Sponsor or the Master Servicer may rely in good faith on any document of any
kind prima facie properly executed and submitted by any Person respecting any
matters arising hereunder. The Sponsor, the Master Servicer and any director,
officer, employee or agent of the Sponsor or the Master Servicer shall be
indemnified by the Trust Fund and held harmless against any loss, liability or
expense incurred in connection with any legal action relating to this Agreement
or the Certificates, other than any loss, liability or expense related to any
specific Mortgage Loan or Mortgage Loans (except as any such loss, liability or
expense shall be otherwise reimbursable pursuant to this Agreement) and any
loss, liability or expense incurred by reason of willful misfeasance, bad faith
or gross negligence in the performance of duties hereunder or by reason of
reckless disregard of obligations and duties hereunder. Neither the Sponsor nor
the Master Servicer shall be under any obligation to appear in, prosecute or
defend any legal action which is not incidental to its respective duties under
this Agreement and which in its opinion may involve it in any expense or
liability; provided, however, that the Sponsor or the Master Servicer may in its
discretion undertake any such action which it may deem necessary or desirable in
respect to this Agreement and the rights and duties of the parties hereto and
the interests of the Certificateholders hereunder. In such event, the legal
expenses and costs of such action and any liability resulting therefrom shall be
expenses, costs and liabilities of the Trust Fund, and the Sponsor and the
Master Servicer shall be entitled to be reimbursed therefor out of amounts
attributable to the Mortgage Loans on deposit in the Collection Account as
provided by Section 3.11.

         SECTION 7.04.     Sponsor and Master Servicer Not to Resign. Subject to
the provisions of Section 7.02, neither the Sponsor nor the Master Servicer
shall resign from its respective obligations and duties hereby imposed on it
except upon determination that its duties hereunder are no longer permissible
under applicable law. Any such determination permitting the resignation of the
Sponsor or the Master Servicer shall be evidenced by an Opinion of Counsel to
such effect delivered to the Trustee. No such resignation by the Master Servicer
shall become

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<PAGE>   78

effective until the Trustee or a successor servicer shall have assumed the
Master Servicer's responsibilities and obligations in accordance with Section
8.05 hereof.


                                  ARTICLE VIII

                                     DEFAULT

         SECTION 8.01.     Events of Default. If any one of the following events
("Events of Default") shall occur and be continuing:

                  (a) any failure by the Master Servicer to deposit amounts in
         the Collection Account in the amount and manner provided herein so as
         to enable the Trustee to distribute to Holders of Certificates any
         payment required to be made under the terms of such Certificates and
         this Agreement (other than the payments required to be made under
         Section 3.20) which continues unremedied for a period of five days; or

                  (b) failure on the part of the Master Servicer duly to observe
         or perform in any material respect any other covenants or agreements of
         the Master Servicer set forth in the Certificates or in this Agreement,
         which covenants and agreements continue unremedied for a period of 30
         days after the date on which written notice of such failure, requiring
         the same to be remedied, shall have been given to the Master Servicer
         by the Trustee or the Sponsor, or to the Master Servicer, the Sponsor
         and the Trustee by the Holders of Certificates evidencing, Voting
         Rights aggregating not less than 25% of all Certificates affected
         thereby; or

                  (c) the entry of a decree or order by a court or agency or
         supervisory authority having jurisdiction in the premises for the
         appointment of a conservator, receiver or liquidator in any insolvency,
         readjustment of debt, marshalling of assets and liabilities or similar
         proceedings against the Master Servicer, or for the winding up or
         liquidation of the Master Servicer's affairs, and the continuance of
         any such decree or order unstayed and in effect for a period of 60
         consecutive days; or

                  (d) the consent by the Master Servicer to the appointment of a
         conservator or receiver or liquidator in any insolvency, readjustment
         of debt, marshalling of assets and liabilities or similar proceedings
         of or relating to the Master Servicer or of or relating to
         substantially all of its property; or the Master Servicer shall admit
         in writing its inability to pay its debts generally as they become due,
         file a petition to take advantage of any applicable insolvency or
         reorganization statute, make an assignment for the benefit of its
         creditors, or voluntarily suspend payment of its obligations; or

                  (e) the failure of the Master Servicer to remit any Monthly
         Advance required to be remitted pursuant to Section 3.20 which failure
         continues unremedied at 3:00 p.m. on the related Distribution Date;

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<PAGE>   79

then, and in each and every such case, so long as an Event of Default shall not
have been remedied by the Master Servicer, either the Trustee or the Sponsor
may, and at the direction of the Holders of Certificates evidencing Voting
Rights aggregating not less than 51% of all Certificates affected thereby shall,
by notice then given in writing to the Master Servicer (and to the Trustee, if
given by the Sponsor, and to the Sponsor, if given by the Trustee), terminate
all of the rights and obligations of the Master Servicer under this Agreement.
If an Event of Default described in clause (e) hereof shall occur, the Trustee
shall, by notice to the Master Servicer, terminate all of the rights and
obligations of the Master Servicer under this Agreement and in and to the
Mortgage Loans and proceeds thereof and the Trustee or a successor Master
Servicer appointed pursuant to Section 8.05 shall make the Advance which the
Master Servicer failed to make. On or after the receipt by the Master Servicer
of such written notice, all authority and power of the Master Servicer under
this Agreement, whether with respect to the Certificates or the Mortgage Loans
or otherwise, shall pass to and be vested in the Trustee pursuant to and under
this Section 8.01, unless and until such time as the Trustee shall appoint a
successor Master Servicer pursuant to Section 8.05, and, without limitation, the
Trustee is hereby authorized and empowered to execute and deliver, on behalf of
the Master Servicer, as attorney-in-fact or otherwise, any and all documents and
other instruments, and to do or accomplish all other acts or things necessary or
appropriate to effect the purposes of such notice of termination, whether to
complete the transfer and endorsement of the Mortgage Loans and related
documents, or otherwise, including, without limitation, the recordation of the
assignments of the Mortgage Loans to it. The Master Servicer agrees to cooperate
with the Trustee in effecting the termination of the responsibilities and rights
of the Master Servicer hereunder, including, without limitation, the transfer to
the Trustee for the administration by it of all cash amounts that have been
deposited by the Master Servicer in the Collection Account or thereafter
received by the Master Servicer with respect to the Mortgage Loans. Upon
obtaining notice or knowledge of the occurrence of any Event of Default, the
Person obtaining such notice or knowledge shall give prompt written notice
thereof to Certificateholders at their respective addresses appearing in the
Certificate Register and to each Rating Agency. All costs and expenses
(including attorneys' fees) incurred in connection with transferring the
Mortgage Files to the successor Master Servicer and amending this Agreement to
reflect such succession as Master Servicer pursuant to this Section 8.01 shall
be paid by the predecessor Master Servicer. Notwithstanding the termination of
the Master Servicer pursuant hereto, the Master Servicer shall remain liable for
any causes of action arising out of any Event of Default occurring prior to such
termination.

         SECTION 8.02.     Remedies of Trustee. During the continuance of any 
Event of Default, so long as such Event of Default shall not have been remedied,
the Trustee, in addition to the rights specified in Section 8.01, shall have the
right, in its own name as trustee of an express trust, to take all actions now
or hereafter existing at law, in equity or by statute to enforce its rights and
remedies and to protect the interests, and enforce its rights and remedies, of
the Certificateholders (including the institution and prosecution of all
judicial, administrative and other proceedings and the filing of proofs of claim
and debt in connection therewith). Except as otherwise expressly provided in
this Agreement, no remedy provided for by this Agreement shall be exclusive of
any other remedy, and each and every remedy shall be cumulative and in addition
to any other remedy and no delay or omission to exercise any right or remedy
shall impair any such right or remedy or shall be deemed to be a waiver of any
Event of Default.

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<PAGE>   80

         SECTION 8.03.     Directions by Certificateholders and Duties of 
Trustee During Event of Default. During the continuance of any Event of Default,
Holders of Certificates evidencing Voting Rights aggregating not less than 25%
of each Class of Certificates affected thereby may direct the time, method and
place of conducting any proceeding for any remedy available to the Trustee, or
exercising any trust or power conferred upon the Trustee under this Agreement;
provided, however, that the Trustee shall be under no obligation to pursue any
such remedy, or to exercise any of the trusts or powers vested in it by this
Agreement (including, without limitation, (a) the conducting or defending of any
administrative action or litigation hereunder or in relation hereto, and (b) the
terminating of the Master Servicer or any successor Master Servicer from its
rights and duties as master servicer hereunder) at the request, order or
direction of any of the Certificateholders, unless such Certificateholders shall
have offered to the Trustee reasonable security or indemnity against the costs,
expenses and liabilities which may be incurred therein or thereby and, provided
further, that, subject to the provisions of Section 9.01, the Trustee shall have
the right to decline to follow any such direction if the Trustee, based upon an
Opinion of Counsel, determines that the action or proceeding so directed may not
lawfully be taken or if the Trustee in good faith determines that the action or
proceeding so directed would involve it in personal liability or be unjustly
prejudicial to the non-assenting Certificateholders.

         SECTION 8.04.     Action upon Certain Failures of the Master Servicer 
and upon Event of Default. In the event that the Trustee shall have knowledge of
any failure of the Master Servicer specified in Section 8.01(a) or (b) which
would become an Event of Default upon the Master Servicer's failure to remedy
the same after notice, the Trustee may, but need not if the Trustee deems it not
in the Certificateholder's best interest, give notice thereof to the Master
Servicer. If the Trustee shall have knowledge of an Event of Default, the
Trustee shall give prompt written notice thereof to the Certificateholders.

         SECTION 8.05.     Trustee to Act; Appointment of Successor.

         (a) On and after the time the Master Servicer receives a notice of
termination pursuant to Section 8.01, the Trustee shall be the successor in all
respects to the Master Servicer in its capacity as master servicer under this
Agreement and the transactions set forth or provided for herein and shall be
subject to all the responsibilities, duties and liabilities relating thereto
placed on the Master Servicer by the terms and provisions hereof.
Notwithstanding anything provided herein to the contrary, under no circumstances
shall any provision of this Agreement, be construed to require the Trustee,
acting in its capacity as successor to the Master Servicer in its obligation to
make Advances, to advance, expend or risk its own funds or otherwise incur any
financial liability in the performance of its duties hereunder if it shall have
reasonable grounds for believing that such funds are non-recoverable. Subject to
Section 8.05(b), as compensation therefor, the Trustee shall be entitled to such
compensation as the Master Servicer would have been entitled to hereunder if no
such notice of termination had been given. Notwithstanding the above, the
Trustee may, if it shall be unwilling so to act, or shall, if it is legally
unable so to act, appoint, or petition a court of competent jurisdiction to
appoint, any established housing and home finance institution having a net worth
of not less than $10,000,000 as the successor to the Master Servicer hereunder
in the assumption of all or any part of the responsibilities, duties or
liabilities of the Master Servicer hereunder; provided, however, that any such
institution appointed as successor Master Servicer shall not as evidenced in
writing by each Rating Agency adversely affect the then current rating of any

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<PAGE>   81


Class of Certificates immediately prior to the termination of the Master
Servicer. The appointment of a successor Master Servicer shall not affect any
liability of the predecessor Master Servicer which may have arisen under this
Agreement prior to its termination as Master Servicer, nor shall any successor
Master Servicer be liable for any acts or omissions of the predecessor Master
Servicer or for any breach by such Master Servicer of any of its representations
or warranties contained herein or in any related document or agreement. Pending
appointment of a successor to the Master Servicer hereunder, unless the Trustee
is prohibited by law from so acting, the Trustee shall act in such capacity as
provided above. The Trustee and such successor shall take such action,
consistent with this Agreement, as shall be necessary to effectuate any such
succession.

         (b) In connection with the appointment of a successor Master Servicer
or the assumption of the duties of the Master Servicer, as specified in Section
8.05(a), the Trustee may make such arrangements for the compensation of such
successor out of payments on Mortgage Loans as it and such successor shall
agree; provided, however, that any Person assuming the duties of Master Servicer
as successor to NationsBanc Mortgage Corporation shall pay to NationsBanc
Mortgage Corporation an amount equal to the market value of the portion of the
Master Servicing Fee that will accrue in the future due to the Master Servicing
Fee Rate exceeding 0.25% per annum with respect to any Mortgage Loan. The
"market value" of such portion of the Master Servicing Fee shall be determined
by NationsBanc Mortgage Corporation on the basis of at least two quotations from
third parties actively engaged in the servicing of single-family mortgage loans.
If the successor Master Servicer does not agree that such market value is a fair
price, such successor shall obtain two quotations of market value from third
parties actively engaged in the servicing of single-family mortgage loans. The
market value of the excess portion of the Master Servicing Fee will then be
equal to the average of (i) the lowest figure obtained by NationsBanc Mortgage
Corporation and (ii) the highest figure obtained by the successor Master
Servicer. Payment of the amount calculated above shall be made to NationsBanc
Mortgage Corporation by the successor Master Servicer no later than the last
Business Day of the month in which such successor Master Servicer becomes
entitled to receive the Master Servicing Fee under this Agreement. In no event
will any portion of the Trust Fund be used to pay amounts due to NationsBanc
Mortgage Corporation under this Section 8.05(b).

         (c) Any successor, including the Trustee, to the Master Servicer as
master servicer shall during the term of its service as master servicer maintain
in force (i) a policy or policies of insurance covering errors and omissions in
the performance of its obligations as servicer hereunder and (ii) a fidelity
bond in respect of its officers, employees and agents to the same extent as the
Master Servicer is so required pursuant to Section 3.03.

         SECTION 8.06.     Notification to Certificateholders. Upon any 
termination or appointment of a successor to the Master Servicer pursuant to
this Article VIII, the Trustee shall give prompt written notice thereof to
Certificateholders at their respective addresses appearing in the Certificate
Register and to each Rating Agency.


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                                   ARTICLE IX

                                   THE TRUSTEE

         SECTION 9.01.     Duties of Trustee.

         (a) The Trustee, except during the continuance of an Event of Default,
undertakes to perform such duties and only such duties as are specifically set
forth in this Agreement. In case of an Event of Default (which has not been
cured), the Trustee shall exercise such of the rights and powers vested in it by
this Agreement and use the same degree of care and skill in their exercise as a
prudent investor would exercise or use under the circumstances in the conduct of
such investor's own affairs.

         The Trustee, upon receipt of all resolutions, certificates, statements,
opinions, reports, documents, orders or other instruments furnished to the
Trustee which are specifically required to be furnished pursuant to any
provision of this Agreement, shall examine them to determine whether they are in
the form required by this Agreement; provided, however, that the Trustee shall
not be responsible for the accuracy or content of any such certificate,
statement, opinion, report, or other order or instrument.

         (b) No provision of this Agreement shall be construed to relieve the
Trustee from liability for its own gross negligent action, its own gross
negligent failure to act or its own willful misconduct; provided, however, that:

                  (i) this paragraph shall not be construed to limit the effect
         of Section 9.01(a);

                  (ii) the Trustee and co-trustee shall not be personally liable
         with respect to any action taken, suffered or omitted to be taken by it
         in good faith in accordance with the direction of Certificateholders as
         provided in Section 8.03;

                  (iii) for all purposes under this Agreement, the Trustee shall
         not be deemed to have notice of any matter, including without
         limitation those matters described in Section 8.01(b) through (e),
         unless a Responsible Officer assigned to and working in the Trustee's
         corporate trust division has actual knowledge thereof or unless written
         notice of any event is received at the Corporate Trust Office, and such
         notice references the Certificates and this Agreement;

                  (iv) no provision of this Agreement shall require the Trustee
         to expend or risk its own funds or otherwise incur any financial
         liability in the performance of any of its duties hereunder, or in the
         exercise of any of its rights or powers, if it shall have reasonable
         grounds for believing that repayment of such funds or adequate
         indemnity against such risk or liability is not reasonably assured to
         it and none of the provisions contained in this Agreement shall in any
         event require the Trustee to perform, or be responsible for the manner
         of performance of, any of the obligations of the Sponsor or the Master
         Servicer under this Agreement, except during such time, if any, as the
         Trustee shall be the successor

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<PAGE>   83

         to the Master Servicer in accordance with the terms of this Agreement
         or as otherwise specifically set forth in this Agreement; and

                  (v) prior to the occurrence of an Event of Default as
         described in the first paragraph of this Section 9.01 and after the
         curing of all such events of default which may have occurred, the
         duties and obligations of the Trustee shall be determined solely by the
         express provisions of this Agreement, the Trustee shall not be liable
         except for the performance of such duties and obligations as are
         specifically set forth in this Agreement, no implied covenants or
         obligations shall be read into this Agreement against the Trustee and,
         in the absence of bad faith on the part of the Trustee, the Trustee may
         conclusively rely, as to the truth of the statements and the
         correctness of the opinions expressed therein, upon any certificates or
         opinions furnished to the Trustee and conforming to the requirements of
         this Agreement.

         SECTION 9.02.     Certain Matters Affecting the Trustee.  Except as 
otherwise provided in Section 9.01:

                  (a) the Trustee may rely and shall be protected in acting or
         refraining from acting upon any resolution, Officer's Certificate,
         certificate of auditor or any other certificate, statement, instrument,
         opinion, report, notice, request, consent, order, approval, bond or
         other paper or document believed by it to be genuine and to have been
         signed or presented by the proper party or parties;

                  (b) the Trustee may consult with counsel and any Opinion of
         Counsel shall be full and complete authorization and protection in
         respect of any action taken or suffered or omitted by it hereunder in
         good faith and in accordance with such Opinion of Counsel;

                  (c) the Trustee and any co-trustee shall not be personally
         liable for any action taken, suffered or omitted by it in good faith
         and reasonably believed by it to be authorized or within the discretion
         or rights or powers conferred upon it by this Agreement;

                  (d) unless an Event of Default shall have occurred and be
         continuing and, in each case is known to a Responsible Officer of the
         Trustee, the Trustee shall not be bound to make any investigation into
         the facts or matters stated in any resolution, certificate, statement,
         instrument, opinion, report, notice, request, consent, order, approval,
         bond or other paper or document, unless requested in writing to do so
         by Holders of Certificates evidencing not less than 50% of the
         Percentage Interests of each Class of Certificates; provided, however,
         that if the payment within a reasonable time to the Trustee of the
         costs, expenses or liabilities likely to be incurred by it in the
         making of such investigation is, in the opinion of the Trustee, not
         reasonably assured to the Trustee by the security afforded to it by the
         terms of this Agreement, the Trustee may require reasonable indemnity
         against such expense or liability or payment of such estimated expenses
         as a condition to proceeding; and

                  (e) the Trustee and any co-trustee may execute any of the
         trusts or powers hereunder or perform any duties hereunder either
         directly or by or through agents or attorneys and the Trustee and any
         co-trustee shall not be responsible for any willful

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         misconduct or gross negligence on the part of any agent or attorney
         appointed with due care by it hereunder.

         SECTION 9.03.    Trustee Not Liable for Certificates or Mortgage Loans.
The recitals contained herein (other than those relating to the due
organization, power and authority of the Trustee) and in the Certificates (other
than the execution of, and the counter-signature on the Certificates) shall be
taken as the statements of the Sponsor or Master Servicer, as applicable, and
the Trustee assumes no responsibility for their corrections. The Trustee makes
no representations as to the validity or sufficiency of this Agreement or of the
Certificates or any Mortgage Loans save that the Trustee represents that,
assuming due execution and delivery by the other parties hereto, this Agreement
has been duly authorized, executed and delivered by it and constitutes its
legal, valid and binding obligation, enforceable against it in accordance with
its terms, subject, as to enforcement of remedies, to applicable insolvency,
receivership, moratorium and other laws affecting the rights of creditors
generally, and to general principles of equity and the discretion of the court
(regardless of whether enforcement of such remedies is considered in a
proceeding in equity or at law). The Trustee shall not be accountable for the
use or application by the Sponsor of funds paid to the Sponsor in consideration
of the assignment of the Mortgage Loans hereunder by the Sponsor, or for the use
or application of any funds paid to Servicers or the Master Servicer in respect
of the Mortgage Loans or deposited into the Collection Account, or any other
account hereunder (other than the Distribution Account) by the Master Servicer.

         The Trustee shall at no time have any responsibility or liability for
or with respect to the legality, validity and enforceability of any Mortgage or
any Mortgage Loan, or the perfection and priority of any Mortgage or the
maintenance of any such perfection and priority or for or with respect to the
sufficiency of the Trust or its ability to generate the payments to be
distributed to Certificateholders under this Agreement, including, without
limitation: the existence, condition and ownership of any Mortgaged Property;
the existence and enforceability of any hazard insurance thereon (other than if
the Trustee shall assume the duties of the Master Servicer pursuant to Section
8.05 and thereupon only for the acts or omissions of the successor Master
Servicer); the validity of the assignment of any Mortgage Loan to the Trustee or
of any intervening assignment; the completeness of any Mortgage Loan; the
performance or enforcement of any Mortgage Loan (other than if the Trustee shall
assume the duties of the Master Servicer pursuant to Section 8.05 and thereupon
only for the acts or omissions of the Trustee as successor Master Servicer); the
compliance by the Sponsor or the Master Servicer with any warranty or
representation made under this Agreement or in any related document or the
accuracy of any such warranty or representation; any investment of monies by or
at the direction of the Master Servicer or any loss resulting therefrom, it
being understood that the Trustee shall remain responsible for any Trust
property that it may hold in its individual capacity; the acts or omissions of
any of the Sponsor, the Master Servicer (other than if the Trustee shall assume
the duties of the Master Servicer pursuant to Section 8.05 and thereupon only
for the acts or omissions of the Trustee as successor Master Servicer), any
Servicer or any Mortgagor; any action of the Master Servicer (other than if the
Trustee shall assume the duties of the Master Servicer pursuant to Section 8.05
and thereupon only for the acts or omissions of the Trustee as successor Master
Servicer) or any Servicer taken in the name of the Trustee; the failure of the
Master Servicer or any Servicer to act or perform any duties acquired of it as
agent of the Trustee hereunder; or any action by the Trustee taken at the
instruction of the Master

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Servicer (other than if the Trustee shall assume the duties of the Master
Servicer pursuant to Section 8.05 and thereupon only for the acts or omissions
of the Trustee as successor Master Servicer); provided, however, that the
foregoing shall not relieve the Trustee of its obligation to perform its duties
under this Agreement, including, without limitation, the Trustee's review of the
Mortgage Files pursuant to Section 2.02. The Trustee shall file any financing or
continuation statement in any public office at any time required to maintain the
perfection of any security interest or lien granted to it hereunder.

         SECTION 9.04.     Trustee May Own Certificates. The Trustee in its 
individual or any other capacity may become the owner or pledgee of Certificates
with the same rights it would have if it were not Trustee and may otherwise deal
with the Master Servicer, any Servicer or any of their respective affiliates
with the same right it would have if it were not the Trustee.

         SECTION 9.05.     Eligibility Requirements for Trustee. The Trustee 
hereunder shall at all times be (a) an institution the deposits of which are
fully insured by the FDIC and (b) a corporation or national banking association
organized and doing business under the laws of the United States of America or
of any State, authorized under such laws to exercise corporate trust powers,
having a combined capital and surplus of not less than $30,000,000 and subject
to supervision or examination by Federal or State authority and (c) with respect
to every successor trustee hereunder either an institution (i) the long-term
unsecured debt obligations of which are rated at least "A" by S&P and "A" by
Fitch or (ii) whose serving as Trustee hereunder would not result in the
lowering of the ratings originally assigned to any Class of Certificates. The
Trustee shall not be an affiliate of the Sponsor or the Master Servicer. If such
corporation or national banking association publishes reports of condition at
least annually, pursuant to law or to the requirements of the aforesaid
supervising or examining authority, then for the purposes of this Section 9.05,
the combined capital and surplus of such corporation or national banking
association shall be deemed to be its combined capital and surplus as set forth
in its most recent report of condition so published. In case at any time the
Trustee shall cease to be eligible in accordance with the provision of this
Section 9.05, the Trustee shall resign immediately in the manner and with the
effect specified in Section 9.06.

         SECTION 9.06.     Resignation and Removal of Trustee. The Trustee may 
at any time resign and be discharged from the trust hereby created by giving
written notice thereof to the Master Servicer and mailing a copy of such notice
to all Holders of record. The Trustee shall also mail a copy of such notice of
resignation to each Rating Agency. Upon receiving such notice of resignation,
the Master Servicer shall use its best efforts to promptly appoint a successor
Trustee by written instrument, in duplicate, one copy of which instrument shall
be delivered to the resigning Trustee and one copy to the successor Trustee. If
no successor Trustee shall have been so appointed and shall have accepted
appointment within 30 days after the giving of such notice of resignation, the
resigning Trustee may petition any court of competent jurisdiction for the
appointment of a successor Trustee.

         If at any time the Trustee shall cease to be eligible in accordance
with the provisions of Section 9.05 and shall fail to resign after written
request therefor by the Master Servicer, or if at any time the Trustee shall
become incapable of acting, or shall be adjudged a bankrupt or insolvent, or a
receiver of the Trustee or of its property shall be appointed, or any public
officer shall take charge or

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control of the Trustee or of its property, or any public officer shall take
charge or control of the Trustee or of its property or affairs for the purpose
of rehabilitation, conservation or liquidation, then the Master Servicer may
remove the Trustee and appoint a successor trustee by written instrument, in
duplicate, one copy of which instrument shall be delivered to the Trustee so
removed and one copy to the successor.

         The Holders of Certificates evidencing not less than 50% of the Voting
Rights may at any time remove the Trustee by written instrument or instruments
delivered to the Master Servicer and the Trustee; the Master Servicer shall
thereupon use its best efforts to appoint a successor Trustee in accordance with
this Section 9.06.

         Any resignation or removal of the Trustee and appointment of a
successor Trustee pursuant to any of the provisions of this Section 9.06 shall
become effective upon acceptance of appointment by the successor Trustee as
provided in Section 9.07.

         SECTION 9.07.     Successor Trustee. Any successor Trustee appointed as
provided in Section 9.06 shall execute, acknowledge and deliver to the Master
Servicer and to its predecessor Trustee an instrument accepting such appointment
hereunder, and thereupon the resignation or removal of the predecessor Trustee
shall become effective and such successor Trustee, without any further act, deed
or conveyance, shall become fully vested with all the rights, powers, duties and
obligations of its predecessor hereunder, with like effect as if originally
named as Trustee herein. The predecessor Trustee shall duly assign, transfer,
deliver and pay over to the successor Trustee the whole of the Mortgage Files
and related documents and statements held by it hereunder, together with all
instruments of transfer and assignment or other documents properly executed as
may be reasonably required to effect such transfer and such of the records or
copies thereof maintained by the predecessor Trustee in the administration
hereof as may be reasonably requested by the successor Trustee and shall
thereupon be discharged from all duties and responsibilities under this
Agreement; provided, however, that if the predecessor Trustee has been
terminated pursuant to the third paragraph of Section 9.06, all reasonable
expenses of the predecessor Trustee incurred in complying with this Section 9.07
shall be reimbursed by the Trust.

         No successor Trustee shall accept appointment as provided in this
Section 9.07 unless at the time of such appointment such successor Trustee shall
be eligible under the provisions of Section 9.05.

         Upon acceptance of appointment by a successor Trustee as provided in
this Section 9.07, the Master Servicer shall mail notice of the succession of
such Trustee hereunder to all Holders of Certificates at their addresses as
shown in the Certificate Register and to each Rating Agency. If the Master
Servicer fails to mail such notice within ten days after acceptance of
appointment by the successor Trustee, the successor Trustee shall cause such
notice to be mailed at the expense of the Master Servicer.

         SECTION 9.08.     Merger or Consolidation of Trustee. Any corporation 
or national banking association into which the Trustee may be merged or
converted or with which it may be consolidated, or any corporation or national
banking association resulting from any merger, conversion or consolidation to
which the Trustee shall be a party, or any corporation or national

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banking association succeeding to all or substantially all of the corporate
trust business of the Trustee, shall be the successor of the Trustee hereunder,
if such corporation or national banking association is eligible under the
provisions of Section 9.05, without the execution or filing of any paper or any
further act on the part of any of the parties hereto, anything herein to the
contrary notwithstanding.

         SECTION 9.09.     Appointment of Co-Trustee or Separate Trustee.
Notwithstanding any of the provisions hereof, at any time, for the purpose of
meeting any legal requirements of any jurisdiction in which any Mortgaged
Property may at the time be located or for any other reason, the Master Servicer
and the Trustee acting jointly shall have the power and shall execute and
deliver all instruments to appoint one or more Persons approved by the Trustee,
as co-trustee or separate trustee, of all or any part of the Trust Fund, and to
vest in such Person or Persons, in such capacity, such title to the Trust Fund,
or any part thereof, and, subject to the other provision of this Section 9.09,
such powers, duties, obligations, rights and trusts as the Master Servicer and
the Trustee may consider necessary or desirable. If the Master Servicer shall
not have joined in such appointment within ten days after the receipt by it of a
request to do so, the Trustee alone shall have the power to make such
appointment. No co-trustee or separate trustee hereunder shall be required to
meet the terms of eligibility as a successor Trustee under Section 9.05 and no
notice to Holders of Certificates of the appointment of co-trustee(s) or
separate trustee(s) shall be required under Section 9.07.

         In the case of any appointment of a co-trustee or separate trustee
pursuant to this Section 9.09, all rights, powers, duties and obligations
conferred or imposed upon the Trustee shall be conferred or imposed upon and
exercised or performed by the Trustee and such separate trustee or co-trustee
jointly, except to the extent that under any law of any jurisdiction in which
any particular act or acts are to be performed (whether as Trustee hereunder or
as successor to the Master Servicer hereunder), the Trustee shall be incompetent
or unqualified to perform such act or acts, in which event such rights, powers,
duties and obligations (including the holding of title to the Trust Fund or any
portion thereof in any such jurisdiction) shall be exercised and performed by
such separate trustee or co-trustee at the direction of the Trustee. No trustee
hereunder shall be held personally liable by reason of any act or omission of
any other trustee hereunder; provided, however, that no appointment of a
co-trustee or separate trustee hereunder shall relieve the Trustee of its
obligations hereunder.

         Any notice, request or other writing given to the Trustee shall be
deemed to have been given to each of the then separate trustees and co-trustees,
as effectively as if given to each of them. Every instrument appointing any
separate trustee or co-trustee shall refer to this Agreement and the conditions
of this Article IX. Each separate trustee and co-trustee, upon its acceptance of
the trusts conferred, shall be vested with the estates or property specified in
its instrument of appointment, either jointly with the Trustee or separately, as
may be provided therein, subject to all the provisions of this Agreement,
specifically including every provision of this Agreement relating to the conduct
of, affecting the liability of, or affording protection to, the Trustee. Every
such instrument shall be filed with the Trustee.

         Any separate trustee or co-trustee may, at any time, constitute the
Trustee, its agent or attorney-in-fact, with full power and authority, to the
extent not prohibited by law, to do any lawful

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act under or in respect of this Agreement on its behalf and in its name. If any
separate trustee or co-trustee shall become incapable of acting, resign or be
removed, or shall be adjudged a bankrupt or insolvent, or a receiver of its
property shall be appointed, or any public officer shall take charge or control
of such trustee or co-trustee or of its property or affairs for the purpose of
rehabilitation, conservation or liquidation, all of its estates, properties,
rights, remedies and trusts shall vest in and be exercised by the Trustee, to
the extent permitted by law, without the appointment of a new or successor
trustee.

         SECTION 9.10.     Authenticating Agents. The Trustee may appoint one or
more authenticating agents ("Authenticating Agents") which shall be authorized
to act on behalf of the Trustee in authenticating or countersigning
Certificates. Wherever reference is made in this Agreement to the authentication
or countersigning of Certificates by the Trustee or the Trustee's certificate of
authentication or countersigning, such reference shall be deemed to include
authentication or countersigning on behalf of the Trustee by an Authenticating
Agent and a certificate of authentication or countersignature executed on behalf
of the Trustee by an Authenticating Agent. Each Authenticating Agent must be
acceptable to the Master Servicer and must be a corporation or national banking
association organized and doing business under the laws of the United States of
America or of any State, having a principal office and place of business in New
York, New York, having a combined capital and surplus of at least $15,000,000,
authorized under such laws to do a trust business and subject to supervision or
examination by Federal or State authorities.

         Any corporation or national banking association into which any
Authenticating Agent may be merged or converted or with which it may be
consolidated, or any corporation or national banking association resulting from
any merger, conversion or consolidation to which any Authenticating Agent shall
be a party, or any corporation or national banking association succeeding to the
corporate agency business of any Authenticating Agent, shall continue to be the
Authenticating Agent without the execution or filing of any paper or any further
act on the part of the Trustee or the Authenticating Agent.

         Any Authenticating Agent may at any time resign by giving written
notice of resignation to the Trustee and to the Master Servicer. The Trustee may
at any time terminate the agency of any Authenticating Agent by giving written
notice of termination to such Authenticating Agent and to the Master Servicer.
Upon receiving a notice of resignation or upon such a termination, or in case,
at any time any Authenticating Agent shall cease to be eligible in accordance
with the provisions of this Section 9.10, the Trustee may appoint a successor
Authenticating Agent, shall give written notice of such appointment to the
Master Servicer and shall mail notice of such appointment to all
Certificateholders. Any successor Authenticating Agent upon acceptance of its
appointment hereunder shall become vested with all the rights, powers, duties
and responsibilities of its predecessor hereunder, with like effect as if
originally named as Authenticating Agent.

         SECTION 9.11.     Trustee's Fees and Expenses. The Trustee, as
compensation for its activities hereunder, shall be entitled to receive on each
Distribution Date an amount equal to the Trustee Fee for such Distribution Date
pursuant to Section 5.02(a). The Trustee and any director, officer, employee or
agent of the Trustee shall be indemnified by the Trust and held harmless against
any loss, liability or expense (including reasonable attorney's fees) (a)
incurred in

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connection with any claim or legal action relating to (i) this Agreement, (ii)
the Certificates, or (iii) the performance of any of the Trustee's duties
hereunder, other than any loss, liability or expense incurred by reason of
willful misfeasance, bad faith or negligence in the performance of any of the
Trustee's duties hereunder, (b) resulting from any tax or information return
which was prepared by, or should have been prepared by, the Master Servicer and
(c) arising out of the transfer of any Private Certificate not in compliance
with ERISA. Such indemnity shall survive the termination of this Agreement or
the resignation or removal of the Trustee hereunder. Without limiting the
foregoing, except as otherwise agreed upon in writing by the Sponsor and the
Trustee, and except for any such expense, disbursement or advance as may arise
from the Trustee's negligence, bad faith or willful misconduct, the Trust shall
reimburse the Trustee, for all reasonable expenses, disbursements and advances
incurred or made by the Trustee in accordance with any of the provisions of this
Agreement; provided, however, that the Sponsor and the Trustee intend to enter
into a separate agreement for custody-related services. Except as otherwise
provided herein, the Trustee shall not be entitled to payment or reimbursement
for any routine ongoing expenses incurred by the Trustee in the ordinary course
of its duties as Trustee, Certificate Registrar or Paying Agent hereunder or for
any other expenses.

         SECTION 9.12.     Tax Returns. The Trustee will prepare any federal, 
state and local income tax or information returns of the Trust, the Master REMIC
and the Subsidiary REMIC and shall file or cause to be filed such returns.

         SECTION 9.13.     Paying Agents. The Trustee may appoint one or more 
Paying Agents which shall be authorized to act on behalf of the Trustee in
making withdrawals from the Collection Account, and distributions to
Certificateholders as provided in Section 3.08 and Section 5.02. Wherever
reference is made in this Agreement to the withdrawal from the Collection
Account by the Trustee, such reference shall be deemed to include such a
withdrawal on behalf of the Trustee by a Paying Agent. Whenever reference is
made in this Agreement to a distribution by the Trustee or the furnishing of a
statement to Certificateholders by the Trustee, such reference shall be deemed
to include such a distribution or furnishing on behalf of the Trustee by a
Paying Agent. Each Paying Agent shall provide to the Trustee such information
concerning the Collection Account as the Trustee shall request from time to
time. Each Paying Agent must be reasonably acceptable to the Master Servicer and
must be a corporation or banking association organized and doing business under
the laws of the United States of America or of any state, having a principal
office and place of business in New York, New York, having a combined capital
and surplus of at least $15,000,000, authorized under such laws to do a trust
business and subject to supervision or examination by federal or state
authorities.

         Any corporation into which any Paying Agent may be merged or converted
or with which it may be consolidated, or any corporation resulting from any
merger, conversion or consolidation to which any Paying Agent shall be a party,
or any corporation succeeding to the corporate agency business of any Paying
Agent, shall continue to be the Paying Agent provided that such corporation
after the consummation of such merger, conversion, consolidation or succession
meets the eligibility requirements of this Section 9.13.

         Any Paying Agent may at any time resign by giving written notice of
resignation to the Trustee and to the Master Servicer; provided that the Paying
Agent has returned to the Collection

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Account or otherwise accounted, to the reasonable satisfaction of the Trustee,
for all amounts it has withdrawn from the Collection Account. The Trustee may,
upon prior written approval of the Master Servicer, at any time terminate the
agency of any Paying Agent by giving written notice of termination to such
Paying Agent and to the Master Servicer. Upon receiving a notice of resignation
or upon such a termination, or in case at any time any Paying Agent shall cease
to be eligible in accordance with the provisions of the first paragraph of this
Section 9.13, the Trustee may appoint, upon prior written approval of the Master
Servicer, a successor Paying Agent, shall give written notice of such
appointment to the Master Servicer and shall mail notice of such appointment to
all Certificateholders. Any successor Paying Agent upon acceptance of its
appointment hereunder shall become vested with all rights, powers, duties and
responsibilities of its predecessor hereunder, with like effect as if originally
named as Paying Agent. The Trustee shall remain liable for any duties and
obligations assumed by its appointed Paying Agent.

         SECTION 9.14.     Limitation of Liability. The Certificates are 
executed by the Trustee, not in its individual capacity but solely as Trustee of
the Trust, in the exercise of the powers and authority conferred and vested in
it by this Agreement. Each of the undertakings and agreements made on the part
of the Trustee in the Certificates is made and intended not as a personal
undertaking or agreement by the Trustee but is made and intended for the purpose
of binding only the Trust.

         SECTION 9.15      Trustee May Enforce Claims Without Possession of 
Certificates. All rights of action and claims under this Agreement or the
Certificates may be prosecuted and enforced by the Trustee without the
possession of any of the Certificates or the production thereof in any
proceeding relating thereto, and such preceding instituted by the Trustee shall
be brought in its own name or in its capacity as Trustee. Any recovery of
judgment shall, after provision for the payment of the reasonable compensation,
expenses, disbursement and advances of the Trustee, its agents and counsel, be
for the ratable benefit or the Certificateholders in respect of which such
judgment has been recovered.

         SECTION 9.16      Suits for Enforcement. In case an Event of Default or
other default by the Master Servicer or the Sponsor hereunder shall occur and be
continuing, the Trustee, in its discretion, may proceed to protect and enforce
its rights and the rights of the Holders of Certificates under this Agreement by
a suit, action or proceeding in equity or at law or otherwise, whether for the
specific performance of any covenant or agreement contained in this Agreement or
in aid of the execution of any power granted in this Agreement or for the
enforcement of any other legal, equitable or other remedy, as the Trustee, being
advised by counsel, shall deem most effectual to protect and enforce any of the
rights of the Trustee and the Certificateholders.

         SECTION 9.17      Waiver of Bond Requirement. The Trustee shall be
relieved of, and each Certificateholder hereby waives, any requirement of any
jurisdiction in which the Trust, or any part thereof, may be located that the
Trustee post a bond or other surety with any court, agency or body whatsoever.

         SECTION 9.18      Waiver of Inventory, Accounting and Appraisal 
Requirement. The Trustee shall be relieved of, and each Certificateholder hereby
waives, any requirement of any jurisdiction in which the Trust, or any part
thereof, may be located that the Trustee file any

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inventory, accounting or appraisal of the Trust with any court, agency or body
at any time or in any manner whatsoever.

         SECTION 9.19      Year 2000 Compliance. The Trustee is working to 
modify its computer and other systems used in the performance of its duties as
trustee and/or bond administrator for the Certificates to operate in a manner
such that, on and after January 1, 2000, the Trustee can perform its duties in
accordance with the terms of this Agreement.



                                    ARTICLE X

                                   TERMINATION

         SECTION 10.01.    Termination upon Purchase by the Sponsor or 
Liquidation of All Mortgage Loans. Subject to Section 10.02, the respective
obligations and responsibilities of the Sponsor, the Master Servicer and the
Trustee created hereby (other than the obligation of Trustee to make certain
payments to Certificateholders after the Final Distribution Date, the
obligations of the Master Servicer to send certain notices as hereinafter set
forth and pursuant to Sections 9.11 and 9.12 hereof and the obligation of the
Master Servicer pursuant to Section 5.05(b)) shall terminate upon the last
action required to be taken by the Trustee on the Final Distribution Date
pursuant to this Article X following the earlier of (a) the purchase by the
Sponsor of all Mortgage Loans and all REO Property remaining in the Trust Fund
at a price equal to the sum of (i) 100% of the Stated Principal Balance of each
Mortgage Loan (other than any Mortgage Loan as to which REO Property has been
acquired and whose fair market value is included pursuant to clause (ii) below)
and (ii) the fair market value of such REO Property (as determined by the
Sponsor as of the close of business on the third Business Day next preceding the
date upon which notice of any such termination is furnished to
Certificateholders pursuant to the third paragraph of this Article X), plus any
Class Unpaid Interest Shortfall for any Class of Certificates as well as one
month's interest at the related Mortgage Rate on the Stated Principal Balance of
each Mortgage Loan (including any Mortgage Loan as to which REO Property has
been acquired) or (b) the final payment or other liquidation (or any advance
with respect thereto) of the last Mortgage Loan remaining in the Trust Fund or
the disposition of all REO Property; provided, however, that in no event shall
the Trust created hereby continue beyond the expiration of 21 years from the
death of the last survivor of the descendants of Joseph P. Kennedy, the late
ambassador of the United States to the Court of St. James, living on the date
hereof.

         The right of the Sponsor to repurchase all Mortgage Loans pursuant to
(a) above is conditioned upon the Pool Stated Principal Balance as of the Final
Distribution Date being less than 5% of the Cut-Off Date Pool Principal Balance.
If such right is exercised, the Trustee shall, promptly following payment of the
purchase price, release to the Sponsor or its designee the Mortgage Files
pertaining to the Mortgage Loans being purchased.

         Notice of any termination, specifying the Final Distribution Date
(which shall be a date that would otherwise be a Distribution Date) upon which
the Certificateholders may surrender their Certificates to the Trustee for
payment of the final distribution and for cancellation, shall be given

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promptly by the Sponsor (if exercising its right to purchase the assets of the
Trust) or by the Trustee (in any other case) by letter to Certificateholders
mailed not earlier than the 15th day and not later than the 25th day of the
month next preceding the month of such final distribution specifying (1) the
Final Distribution Date upon which final payment of the Certificates will be
made upon presentation and surrender of Certificates at the office or agency of
the Trustee therein designated, (2) the amount of any such final payment and (3)
that the Record Date otherwise applicable to such Distribution Date is not
applicable, payments being made only upon presentation and surrender of the
Certificates at the office or agency of the Trustee therein specified. If the
Sponsor is obligated to give notice to Certificateholders as aforesaid, it shall
give such notice to the Trustee and the Certificate Registrar at the time such
notice is given to Certificateholders. In the event such notice is given by the
Sponsor, the Sponsor shall deposit in the Collection Account on or before the
Final Distribution Date in immediately available funds an amount equal to the
amount necessary to make the amount, if any, on deposit in the Collection
Account on the Final Distribution Date equal to the purchase price for the
assets of the Trust computed as above provided together with a statement as to
the amount to be distributed on each Class of Certificates pursuant to the next
succeeding paragraph.

         Upon presentation and surrender of the Certificates, the Trustee shall
cause to be distributed to Certificateholders of each Class, in the order set
forth in Section 5.02 hereof, on the final Distribution Date and in proportion
to their respective Percentage Interests, with respect to Certificateholders of
the same Class, an amount equal to (I) as to each Class of Certificates, the
Class Certificate Balance thereof plus (a) accrued interest thereon (or on their
Notional Amount, if applicable) in the case of an interest bearing Certificate
and (b) the Class A-PO Deferred Amount with respect to the Class A-PO
Certificates, and (II) as to the Class R-I Certificates, the amount, if any,
which remains on deposit in the Distribution Account (other than the amounts
retained to meet claims) after application pursuant to clause (I) above.

         If all of the Certificateholders do not surrender their Certificates
for final payment and cancellation on or before the Final Distribution Date, the
Trustee shall on such date cause all funds in the Collection Account not
distributed in final distribution to Certificateholders to continue to be held
by the Trustee in an Eligible Account for the benefit of such Certificateholders
and the Sponsor (if it exercised its right to purchase the assets of the Trust
Fund) or the Trustee (in any other case) shall give a second written notice to
the remaining Certificateholders to surrender their Certificates for
cancellation and receive the final distribution with respect thereto. If within
one year after the second notice all the Certificates shall not have been
surrendered for cancellation, the Trustee may take appropriate steps, or may
appoint an agent to take appropriate steps, to contact the remaining
Certificateholders concerning surrender of their Certificates, and the cost
thereof shall be paid out of the funds on deposit in such Eligible Account.

         SECTION 10.02.    Additional Termination Requirements.

         (a) If the Sponsor exercises its purchase option as provided in Section
10.01, the Trust shall be terminated in accordance with the following additional
requirements, unless the Trustee has received an Opinion of Counsel to the
effect that the failure of the Trust to comply with the requirements of this
Section 10.02 will not (i) result in the imposition of taxes on "prohibited

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transactions" of the Trust as defined in Section 860F of the Code, or (ii) cause
the Trust to fail to qualify as a REMIC at any time that any Certificates are
outstanding:

                  (A) within 90 days prior to the Final Distribution Date set
         forth in the notice given by the Sponsor under Section 10.01, the
         Trustee shall sell all of the assets of the Trust Fund to the Sponsor
         for cash; and

                  (B) the notice given by the Sponsor or the Trustee pursuant to
         Section 10.01 shall provide that such notice constitutes the adopting
         of a plan of complete liquidation of the Subsidiary REMIC and the
         Master REMIC as of the date of such notice (or, if earlier, the date on
         which such notice was mailed to Certificateholders). The Trustee shall
         also specify such date in the final tax return of the Subsidiary REMIC
         and the Master REMIC.

         (b) By their acceptance of the Residual Certificates, the Holders
thereof hereby agree to take such other action in connection with such plan of
complete liquidation as may be reasonably requested by the Sponsor.


                                   ARTICLE XI

                            MISCELLANEOUS PROVISIONS

         SECTION 11.01.    Amendment. This Agreement may be amended from time to
time by the Sponsor, the Master Servicer and the Trustee, without the consent of
any of the Certificateholders, (a) to cure any ambiguity, (b) to correct or
supplement any provisions herein or therein which may be defective or
inconsistent with any other provisions herein or therein, as the case may be,
(c) to modify, eliminate or add to any of its provisions to such extent as shall
be necessary to maintain the qualification of the Master REMIC and the
Subsidiary REMIC as REMICs or (d) to add any other provisions with respect to
matters or questions arising under this Agreement which shall not be
inconsistent with the provisions of this Agreement; provided, however, that (i)
as evidenced by an Opinion of Counsel in each case such action shall not,
adversely affect in any material respect the interests of any Certificateholder,
(ii) in each case, such action is necessary or desirable to maintain the
qualification of the Master REMIC and the Subsidiary REMIC as REMICs or shall
not adversely affect such qualification and (iii) if the opinion called for in
clause (i) cannot be delivered with regard to an amendment pursuant to clause
(c) above, such amendment is necessary to maintain the qualification of the
Master REMIC and the Subsidiary REMIC as REMICs; and, provided further, that the
amendment shall not be deemed to adversely affect in any material respect the
interests of the Certificateholders and no Opinion of Counsel to that effect
shall be required if the Person requesting the amendment obtains a letter from
each Rating Agency stating that the amendment would not result in the
downgrading or withdrawal of the respective ratings then assigned to the
Certificates.

         This Agreement may also be amended from time to time by the Sponsor,
the Master Servicer and the Trustee, with the consent of the Holders of
Certificates of each Class of Certificates which is affected by such amendment,
evidencing, as to each such Class of Certificates, Percentage Interests
aggregating not less than 66-2/3%, for the purpose of adding any provisions to
or changing

                                       87
<PAGE>   94

in any manner or eliminating any of the provisions of this Agreement or of
modifying in any manner the rights of the Holders of such Certificates;
provided, however, that no such amendment shall (A) reduce in any manner the
amount of, or delay the timing of, collections of payments on Mortgage Loans or
distributions which are required to be made on any Certificate without the
consent of the Holder of such Certificate or (B) reduce the aforesaid percentage
required to consent to any such amendment, without the consent of the Holders of
all Certificates then Outstanding.

         Prior to the solicitation of consent of Certificateholders in
connection with any such amendment, the party seeking such amendment shall
furnish the Trustee with an Opinion of Counsel stating whether such amendment
would adversely affect the qualification of the Master REMIC and the Subsidiary
REMIC as REMICs and notice of the conclusion expressed in such Opinion of
Counsel shall be included with any such solicitation. An amendment made with the
consent of all Certificateholders and executed in accordance with this Section
11.01 shall be permitted or authorized by this Agreement notwithstanding that
such Opinion of Counsel may conclude that such amendment would adversely affect
the qualification of the Master REMIC and the Subsidiary REMIC as REMICs.

         Promptly after the execution of any such amendment or consent the
Trustee shall furnish written notification of the substance of or a copy of such
amendment to each Certificateholder and to each Rating Agency.

         It shall not be necessary for the consent of Certificateholders under
this Section 11.01 to approve the particular form of any proposed amendment, but
it shall be sufficient if such consent shall approve the substance thereof. The
manner of obtaining such consents and of evidencing the authorization of the
execution thereof by Certificateholders shall be subject to such reasonable
requirements as the Trustee may prescribe.

         SECTION 11.02.    Recordation of Agreement. This Agreement is subject 
to recordation in all appropriate public offices for real property records in
all the counties or other comparable jurisdictions in which any or all of the
properties subject to the Mortgages are situated, and in any other appropriate
public recording office or elsewhere, such recordation to be effected by the
Master Servicer and at its expense on direction by the Trustee, who will act at
the direction of Holders of Certificates evidencing not less than 50% of all
Voting Rights, but only upon direction of the Trustee accompanied by an Opinion
of Counsel to the effect that such recordation materially and beneficially
affects the interests of Certificateholders.

         For the purpose of facilitating the recordation of this Agreement as
herein provided and for other purposes, this Agreement may be executed
simultaneously in any number of counterparts, each of which counterparts shall
be deemed to be an original, and such counterparts shall constitute but one and
the same instrument.

                                       88
<PAGE>   95

         SECTION 11.03.    Limitation on Rights of Certificateholders. The death
or incapacity of any Certificateholder shall not operate to terminate this
Agreement or the Trust, nor entitle such Certificateholder's legal
representatives or heirs to claim an accounting or to take any action or
commence any proceeding in any court for a partition or winding up of the Trust,
nor otherwise affect the rights, obligations and liabilities of the parties
hereto or any of them.

         No Certificateholder shall have any right to vote (except as provided
herein) or in any manner otherwise control the operation and management of the
Trust, or the obligations of the parties hereto, nor shall anything herein set
forth, or contained in the terms of the Certificates, be construed so as to
constitute the Certificateholders from time to time as partners or members of an
association; nor shall any Certificateholder be under any liability to any third
person by reason of any action taken by the parties to this Agreement pursuant
to any provision hereof.

         No Certificateholder shall have any right by virtue or by availing
itself of any provisions of this Agreement to institute any suit, action or
proceeding in equity or at law upon or under or with respect to this Agreement,
unless such Holder previously shall have given to the Trustee a written notice
of default and of the continuance thereof, as provided herein, and unless also
the Holders of Certificates evidencing Percentage Interests aggregating not less
than 25% of each Class of Certificates affected thereby shall have made written
request upon the Trustee to institute such action, suit or proceeding in its own
name as Trustee hereunder and shall have offered to the Trustee such reasonable
indemnity as it may require against the costs, expenses and liabilities to be
incurred therein or thereby, and the Trustee, for 60 days after its receipt of
such notice, request and offer of indemnity, shall have neglected or refused to
institute any such action, suit or proceeding; it being understood and intended,
and being expressly covenanted by each Certificateholder with every other
Certificateholder and the Trustee, that no one or more Holders of Certificates
shall have any right in any manner whatever by virtue or by availing itself or
themselves of any provisions of this Agreement to affect, disturb or prejudice
the rights of the Holders of any other of the Certificates, or to obtain or seek
to obtain priority over or preference to any other such Holder, or to enforce
any right under this Agreement, except in the manner herein provided and for the
equal, ratable and common benefit of all Certificateholders. For the protection
and enforcement of the provisions of this Section 11.03, each and every
Certificateholder and the Trustee shall be entitled to such relief as can be
given either at law or in equity.

         SECTION 11.04.    Governing Law. THIS AGREEMENT SHALL BE CONSTRUED IN 
ACCORDANCE WITH THE LAWS OF THE STATE OF NEW YORK, WITHOUT APPLICATION OF THE
CONFLICTS OF LAWS PROVISIONS THEREOF, AND THE OBLIGATIONS, RIGHTS AND REMEDIES
OF THE PARTIES HEREUNDER SHALL BE DETERMINED IN ACCORDANCE WITH SUCH LAWS.

         SECTION 11.05.    Notices. All demands, notices and communications 
required to be delivered hereunder shall be in writing and shall be deemed to
have been duly given if personally delivered at or mailed by certified mail,
return receipt requested, (provided, however, that notices to the Trustee shall
be deemed effective upon receipt) to (a) in the case of the Sponsor, NationsBanc
Montgomery Funding Corp., NationsBanc Corporate Center, 11th Floor, 100 North
Tryon Street, Charlotte, North Carolina 28255, Attention: Corporate Secretary,
(b) in the case of the Master Servicer, NationsBanc Mortgage Corporation, 101
East Main Street, Suite 400, Louisville,

                                       89
<PAGE>   96

Kentucky 40202, Attention: Servicing Manager, with a copy to: NationsBanc
Mortgage Corporation, 201 North Tryon Street, 14th Floor, Charlotte, North
Carolina 28255, Attention: General Counsel and Treasurer, (c) in the case of the
Trustee, Norwest Bank Minnesota, National Association, at the Corporate Trust
Office, Attention: NationsBanc Montgomery Funding Corp. 1998-1, with a copy to
Norwest Bank Minnesota, National Association, 11000 Broken Land Parkway,
Columbia, Maryland 21044, Attention: NationsBanc Montgomery Funding Corp.
1998-1; provided that any correspondence concerning a Mortgage File or any
Request for Release should be sent to: Norwest Bank Minnesota, National
Association, 1015 10th Avenue S.E., Minneapolis, Minnesota 55414-0031,
Attention: Inventory Control, (d) in the case of S&P, Standard & Poor's, a
division of The McGraw-Hill Companies, Inc., 26 Broadway, New York, New York
10004, Attn: Mortgage Surveillance Group, and (e) in the case of Fitch, Fitch
IBCA, Inc., One State Street Plaza, New York, New York 10004, Attn: Residential
Mortgage Surveillance Group; or, as to each party, at such other address as
shall be designated by such party in a written notice to each other party. Any
notice required or permitted to be mailed to a Certificateholder shall be given
by first class mail, postage prepaid, at the address of such Holder as shown in
the Certificate Register. Any notice so mailed within the time prescribed in
this Agreement shall be conclusively presumed to have been duly given, whether
or not the Certificateholder receives such notice.

         SECTION 11.06.    Severability of Provisions. If any one or more of the
covenants, agreements, provisions or terms of this Agreement shall be for any
reason whatsoever held invalid, then such covenants, agreements, provisions or
terms shall be deemed severable from the remaining covenants, agreements,
provisions or terms of this Agreement and shall in no way affect the validity or
enforceability of the other provisions of this Agreement or of the Certificates
or the rights of the Holders thereof.

         SECTION 11.07.    Certificates Nonassessable and Fully Paid. It is the
intention of the Trustee that Certificateholders shall not be personally liable
for obligations of the Trust Fund, that the beneficial ownership interests
represented by the Certificates shall be nonassessable for any losses or
expenses of the Trust Fund or for any reason whatsoever, and that Certificates
upon execution, countersignature and delivery thereof by the Trustee pursuant to
Section 6.01 are and shall be deemed fully paid.

         SECTION 11.08.    Access to List of Certificateholders. The Certificate
Registrar will furnish or cause to be furnished to the Trustee, within 15 days
after the receipt of a request by the Trustee in writing, a list, in such form
as the Trustee may reasonably require, of the names and addresses of the
Certificateholders as of the most recent Record Date for payment of
distributions to Certificateholders.

         If three or more Certificateholders apply in writing to the Trustee,
and such application states that the applicants desire to communicate with other
Certificateholders with respect to their rights under this Agreement or under
the Certificates and is accompanied by a copy of the communication which such
applicants propose to transmit, then the Trustee shall, within five Business
Days after the receipt of such application, afford such applicants access during
normal business hours to the most recent list of Certificateholders held by the
Trustee. If such a list is as of a date more than 90 days prior to the date of
receipt of such applicants' request, the Trustee shall

                                       90
<PAGE>   97

promptly request from the Certificate Registrar a current list as provided
above, and shall afford such applicants access to such list promptly upon
receipt.

         Every Certificateholder, by receiving and holding such list, agrees
with the Certificate Registrar and the Trustee that neither the Certificate
Registrar nor the Trustee shall be held accountable by reason of the disclosure
of any such information as to the names and addresses of the Certificateholders
hereunder, regardless of the source from which such information was derived.



                                       91
<PAGE>   98




         IN WITNESS WHEREOF, the Sponsor, the Master Servicer and the Trustee
have caused this Agreement to be duly executed by their respective officers
thereunto duly authorized to be hereunto affixed, all as of the day and year
first above written.

                                           NATIONSBANC MONTGOMERY FUNDING CORP.,
                                             as Sponsor


                                           By:  /s/ Robert J. Perret
                                               ------------------------------- 
                                           Name:  Robert J. Perret
                                           Title: Senior Vice President



                                           NATIONSBANC MORTGAGE CORPORATION,
                                             as Master Servicer


                                           By:  /s/ Thomas W. Neary
                                               ------------------------------- 
                                           Name:  Thomas W. Neary
                                           Title: Senior Vice President


                                           NORWEST BANK MINNESOTA, NATIONAL
                                             ASSOCIATION,
                                             as Trustee


                                           By:  /s/ Michael L. Mayer
                                               ------------------------------- 
                                           Name:  Michael L. Mayer
                                           Title: Vice President




                                       92
<PAGE>   99





STATE OF NORTH CAROLINA                          )
                                                 )   ss.:
COUNTY OF MECKLENBURG                            )


         On the 25th day of August, 1998, before me, a notary public in and for
the State of North Carolina, personally appeared Robert J. Perret, known to me
who, being by me duly sworn, did depose and say that he is a Senior Vice
President of NationsBanc Montgomery Funding Corp., a Delaware corporation, one
of the parties that executed the foregoing instrument; and that he signed his
name thereto by order of the Board of Directors of such corporation.


                                                  /s/ Holly Howell Neil
                                                ------------------------------- 
                                                 Notary Public

[Notarial Seal]


<PAGE>   100


STATE OF NORTH CAROLINA                          )
                                                 )   ss.:
COUNTY OF MECKLENBURG                            )



         On the 25th day of August, 1998, before me, a notary public in and for
the State of North Carolina, personally appeared Thomas W. Neary, known to me
who, being by me duly sworn, did depose and say that they are an Authorized
Signatory of NationsBanc Mortgage Corporation, a Texas corporation, one of the
parties that executed the foregoing instrument; and that they signed their name
thereto by order of the Board of Directors of such corporation.


                                                  /s/ Holly Howell Neil
                                                ------------------------------- 
                                                 Notary Public

[Notarial Seal]


<PAGE>   101


STATE OF NORTH CAROLINA                          )
                                                 )   ss.:
COUNTY OF MECKLENBURG                            )



         On the 25th day of August, 1998, before me, a notary public in and for
the State of North Carolina, personally appeared Michael L. Mayer, known to me
who, being by me duly sworn, did depose and say that they are an Authorized
Signatory for Norwest Bank Minnesota, National Association, a national banking
association, one of the parties that executed the foregoing instrument; and that
they signed their name thereto by order of the Board of Directors of said
national banking association.


                                                   /s/ Holly Howell Neil
                                                ------------------------------- 
                                                   Notary Public

[Notarial Seal]



<PAGE>   1
                                                                    EXHIBIT 99.2

                                                                [EXECUTION COPY]

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





                          MORTGAGE LOAN SALE AGREEMENT


                                     between


                        NATIONSBANC MORTGAGE CORPORATION,
                                    as Seller


                                       and


                      NATIONSBANC MONTGOMERY FUNDING CORP.,
                                  as Purchaser







                                 August 25, 1998



                            Fixed-Rate Mortgage Loans
                               Loan Package NCC007


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


<PAGE>   2

                                TABLE OF CONTENTS

<TABLE>
<CAPTION>
                                                                                                               Page
                                                                                                               ----

<S>                   <C>                                                                                      <C>
SECTION 1.            Definitions ................................................................................1

SECTION 2.            Purchase and Conveyance.....................................................................5

SECTION 3.            Mortgage Loan Schedule......................................................................6

SECTION 4.            Purchase Price..............................................................................6

SECTION 5.            Examination of Mortgage Files...............................................................6

SECTION 6.            Delivery of Mortgage Loan Documents.........................................................6
         Subsection 6.01         Possession of Mortgage Files.....................................................6
         Subsection 6.02         Books and Records................................................................7
         Subsection 6.03         Delivery of Mortgage Loan Documents..............................................7

SECTION 7.            Representations, Warranties and Covenants; Remedies for Breach..............................7
         Subsection 7.01         Representations and Warranties Regarding Individual Mortgage Loans...............7
         Subsection 7.02         Seller Representations..........................................................13

SECTION 8.            Closing    ................................................................................16

SECTION 9.            Closing Documents..........................................................................16

SECTION 10.           Costs      ................................................................................17

SECTION 11.           Notices    ................................................................................17

SECTION 12.           Severability Clause........................................................................17

SECTION 13.           No Partnership.............................................................................18

SECTION 14.           Counterparts...............................................................................18

SECTION 15.           Governing Law..............................................................................18

SECTION 16.           Intention of the Parties...................................................................18

SECTION 17.           Successors and Assigns.....................................................................18

SECTION 18.           Waivers    ................................................................................18
</TABLE>


                                       i
<PAGE>   3

<TABLE>
<CAPTION>

<S>                   <C>                                                                                      <C>
SECTION 19.           Exhibits   ................................................................................19

SECTION 20.           General Interpretive Principles............................................................19

SECTION 21.           Reproduction of Documents..................................................................19

SECTION 22.           Amendment..................................................................................19

SECTION 23.           Confidentiality............................................................................19

SECTION 24.           Entire Agreement...........................................................................20

SECTION 25.           Further Agreements.........................................................................20
</TABLE>


                                       ii

<PAGE>   4

                                    EXHIBITS

EXHIBIT 1         MORTGAGE LOAN DOCUMENTS
EXHIBIT 2         CONTENTS OF EACH MORTGAGE FILE
EXHIBIT 3         MORTGAGE LOAN SCHEDULE
EXHIBIT 4         UNDERWRITING GUIDELINES
EXHIBIT 5         FORM OF PURCHASE PRICE TERMS LETTER


                                      iii
<PAGE>   5

                          MORTGAGE LOAN SALE AGREEMENT

         THIS MORTGAGE LOAN SALE AGREEMENT (the "Agreement"), dated August 25,
1998, is hereby executed by and between NationsBanc Montgomery Funding Corp., a
Delaware corporation (the "Purchaser"), and NationsBanc Mortgage Corporation, a
Texas corporation (the "Seller").

                                   WITNESSETH:

         WHEREAS, the Seller desires to sell to the Purchaser, and the Purchaser
desires to purchase from the Seller, certain conventional, fixed-rate,
residential, first-lien mortgage loans (the "Mortgage Loans") as described
herein, which shall be delivered as whole loans as provided herein;

         WHEREAS, each Mortgage Loan is secured by a mortgage, deed of trust or
other security instrument creating a first lien on a residential dwelling
located in the jurisdiction indicated on the Mortgage Loan Schedule; and

         WHEREAS, the Purchaser and the Seller wish to prescribe the manner of
the conveyance of the Mortgage Loans;

         NOW, THEREFORE, in consideration of the premises and mutual agreements
set forth herein, and for other good and valuable consideration, the receipt and
sufficiency of which are hereby acknowledged, the Purchaser and the Seller agree
as follows:

         SECTION 1. Definitions. For purposes of this Agreement, the following
capitalized terms shall have the respective meanings set forth below or, if not
defined in this Agreement, in the Pooling Agreement:

         Agreement: This Mortgage Loan Sale Agreement including all exhibits,
schedules, amendments and supplements hereto.

         ALTA:  The American Land Title Association.

         Appraised Value: With respect to any Mortgaged Property, the lesser of
(i) the value thereof as determined by an appraisal made for the originator of
the Mortgage Loan at the time of origination of the Mortgage Loan by a Qualified
Appraiser, and (ii) the purchase price paid for the related Mortgaged Property
by the Mortgagor with the proceeds of the Mortgage Loan; provided, however, that
in the case of a Refinanced Mortgage Loan, such value of the Mortgaged Property
is based solely upon the value determined by an appraisal made for the
originator of such Refinanced Mortgage Loan at the time of origination of such
Refinanced Mortgage Loan by a Qualified Appraiser.

         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 in which the related Mortgaged Property is located
to give record notice of the sale of the Mortgage to the Purchaser.


<PAGE>   6

         Business Day: Any day other than a Saturday or Sunday, or a day on
which banking and savings and loan institutions in the State of North Carolina,
are authorized or obligated by law or executive order to be closed.

         Closing Date:  August 25, 1998.

         Closing Documents: The documents required to be delivered on the
Closing Date pursuant to Section 9.

         Code: The Internal Revenue Code of 1986, or any successor statute
thereto.

         Cut-off Date:  August 1, 1998.

         Cut-off Date Principal Balance: The aggregate Stated Principal Balance
of the Mortgage Loans as of the Cut-off Date which is determined after the
application, to the reduction of principal, of payments of principal due on or
before the Cut-off Date, whether or not collected, and of partial principal
prepayments received on or before the Cut-off Date.

         Deleted Mortgage Loan: A Mortgage Loan replaced or to be replaced with
a Substitute Mortgage Loan in accordance with this Agreement and the Pooling
Agreement.

         Due Date: The first day of each month, which is the day on which the
monthly payment is due on a Mortgage Loan, exclusive of any days of grace.

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

         FHLMC: The Federal Home Loan Mortgage Corporation or any successor
thereto.

         FIRREA: The Financial Institutions Reform, Recovery, and Enforcement
Act of 1989, as amended and in effect from time to time.

         FNMA: The Federal National Mortgage Association or any successor
thereto.

         HUD: The United States Department of Housing and Urban Development or
any successor thereto.

         Loan-to-Value Ratio: With respect to any Mortgage Loan as of any date
of determination, the ratio, expressed as a percentage, the numerator of which
is the outstanding principal balance of such Mortgage Loan at origination (or,
on such date, if a current Loan-to-Value Ratio is being calculated) and the
denominator of which is the Appraised Value of the related Mortgaged Property.

         LTV:  Loan-to-Value Ratio.

         Master Servicer: NationsBanc Mortgage Corporation in its capacity as
master servicer under the Pooling Agreement.



                                       2
<PAGE>   7

         Monthly Payment: With respect to any Mortgage Loan, the scheduled
payment of principal and interest payable by a Mortgagor under the related
Mortgage Note on each Due Date.

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

         Mortgage File: With respect to any Mortgage Loan, the items listed in
Exhibit 2 hereto and any additional documents required to be added to the
Mortgage File pursuant to this Agreement.

         Mortgage Interest Rate: With respect to each Mortgage Loan, the annual
rate at which interest accrues on such Mortgage Loan from time to time in
accordance with the provisions of the related Mortgage Note.

         Mortgage Loan: Each mortgage loan sold, assigned and transferred
pursuant to this Agreement and identified on the Mortgage Loan Schedule,
including, without limitation, the Mortgage File, the Monthly Payments,
Principal Prepayments, Liquidation Proceeds, Condemnation Proceeds, Insurance
Proceeds, REO Disposition Proceeds, and all other rights, benefits, proceeds and
obligations arising from or in connection with such mortgage loan.

         Mortgage Loan Documents: With respect to any Mortgage Loan, the
documents listed in Exhibit 1 hereto.

         Mortgage Loan Schedule: The schedule of Mortgage Loans to be annexed
hereto as Exhibit 3 on the Closing Date, setting forth the following information
with respect to each Mortgage Loan: (1) the Seller's Mortgage Loan identifying
number; (2) a code indicating whether the Mortgaged Property is owner-occupied;
(3) the property type for each Mortgaged Property; (4) the original months to
maturity or the remaining months to maturity from the Cut-off Date; (5) the
Loan-to-Value Ratio at origination; (6) the Mortgage Interest Rate; (7) 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; (8) the stated
maturity date; (9) the amount of the Monthly Payment as of the Cut-off Date;
(10) the paid-through date; (11) the original principal amount of the Mortgage
Loan; (12) 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; (13) a
code indicating the purpose of the Mortgage Loan; (14) a code indicating the
documentation style; and (15) the Appraised Value. 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: (1) the number of Mortgage Loans; (2) the
current aggregate outstanding principal balance of the Mortgage Loans; (3) the
weighted average Mortgage Interest Rate of the Mortgage Loans; and (4) the
weighted average months to maturity of the Mortgage Loans.

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



                                       3
<PAGE>   8

         Mortgaged Property: The Mortgagor's real property securing repayment of
a related Mortgage Note, consisting of a fee simple interest or leasehold estate
in single or multiple parcels of real property improved by a Residential
Dwelling.

         Mortgagee: The mortgagee or beneficiary named in the Mortgage and the
successors and assigns of such mortgagee or beneficiary.

         Mortgagor: The obligor on a Mortgage Note, who is an owner of the
Mortgaged Property and the grantor or mortgagor named in the Mortgage and such
grantor's or mortgagor's successors in title to the Mortgaged Property.

         Officer's Certificate: A certificate signed by the Chairman of the
Board, the Vice Chairman of the Board, a President or a Vice President and by
the Treasurer, the Secretary, or one of the Assistant Treasurers or one of the
Assistant Secretaries of the Person on behalf of whom such certificate is being
delivered.

         Opinion of Counsel: A written opinion of counsel, who may be an
employee of the Seller, reasonably acceptable to the Purchaser.

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

         Pooling Agreement: The Pooling and Servicing Agreement, dated as of
August 1, 1998 among the Purchaser, as sponsor, the Seller, in its capacity as
Master Servicer, and Norwest Bank Minnesota, National Association, as trustee.

         Primary Mortgage Insurance Policy: A policy of primary mortgage
guaranty insurance issued by an insurer acceptable to FNMA or FHLMC.

         Principal Prepayment: Any payment or other recovery of principal on a
Mortgage Loan which is received in advance of its scheduled Due Date, including
any prepayment penalty or premium thereon, which 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.

         Purchase Price: The price paid on the Closing Date by the Purchaser to
the Seller pursuant to this Agreement in exchange for the Mortgage Loans, which
shall be the amount set forth in the Purchase Price Terms Letter.

         Purchase Price Terms Letter: The letter agreement between the Seller
and the Purchaser which sets forth the Purchase Price for the Mortgage Loans and
is substantially in the form of Exhibit 5 hereto.

         Purchaser: The Person listed as such in the initial paragraph of this
Agreement, together with its successors and assigns as permitted under the terms
of this Agreement.



                                       4
<PAGE>   9

         Qualified Appraiser: An appraiser of a Mortgaged Property duly
appointed by the originator of the related Mortgage Loan, who had no interest,
direct or indirect, in such Mortgaged Property or in any loan made on the
security thereof, whose compensation is not affected by the approval or
disapproval of the related Mortgage Loan and who met the minimum qualifications
of FNMA or FHLMC.

         Refinanced Mortgage Loan: A Mortgage Loan the proceeds of which were
not used to purchase the related Mortgaged Property.

         Repurchase Price: Shall have the same meaning assigned to "Purchase
Price" in the Pooling Agreement.

         Residential Dwelling: Any one of the following: (i) a detached
one-family dwelling, (ii) a detached two- to four-family dwelling, (iii) a
one-family dwelling unit in a condominium project or (iv) a one-family dwelling
in a planned unit development, none of which is a co-operative, mobile or
manufactured home.

         Seller: NationsBanc Mortgage Corporation, a Texas corporation, or its
successor in interest or any successor to the Seller under this Agreement
appointed as herein provided.

         Stated Principal Balance: As to each Mortgage Loan as to any date of
determination, (i) the principal balance of the Mortgage Loan at the Cut-off
Date after giving effect to payments of principal due on or before such date,
whether or not received, minus (ii) all amounts previously distributed to the
Purchaser with respect to the Mortgage Loan representing payments or recoveries
of principal, or advances in lieu thereof.

         Underwriting Guidelines: The underwriting guidelines of NationsBanc
Mortgage Corporation substantially in the form attached hereto as Exhibit 4.

         SECTION 2. Purchase and Conveyance. The Seller, in exchange for the
payment of the Purchase Price by the Purchaser on the Closing Date, receipt of
which is hereby acknowledged, hereby sells, transfers, assigns, sets over and
conveys to the Purchaser, without recourse, but subject to the terms of this
Agreement, all rights, title and interest of the Seller in and to Mortgage Loans
having a Cut-off Date Principal Balance of $572,886,956.01, together with the
related Mortgage Files and all rights and obligations arising under the
documents contained therein. The sale of the Mortgage Loans by the Seller is on
a servicing-retained basis with such servicing rights being governed by the
terms of the Pooling Agreement.

         With respect to each Mortgage Loan purchased, the Purchaser shall own
and be entitled to receive: (a) all scheduled principal due after the Cut-off
Date, (b) all other payments and/or recoveries of principal collected after the
Cut-off Date (provided, however, that all scheduled payments of principal due on
or before the Cut-off Date and collected by the Master Servicer after the
Cut-off Date shall belong to the Seller), and (c) all payments of interest on
the Mortgage Loans (minus that portion of any such interest payment that is
allocable to the period prior to the Cut-off Date).



                                       5
<PAGE>   10

         The Stated Principal Balance of each Mortgage Loan as of the Cut-off
Date is determined after application, to the reduction of principal, of payments
of principal due on or before the Cut-off Date whether or not collected and of
partial principal prepayments received on or before the Cut-off Date. Therefore,
for the purposes of this Agreement, payments of scheduled principal and interest
prepaid for a Due Date beyond the Cut-off Date shall not be applied to the
principal balance as of the Cut-off Date. Such prepaid amounts shall be the
property of the Purchaser. The Seller shall remit to the Master Servicer for
deposit any such prepaid amounts into the Collection Account. All payments of
principal and interest due on a Due Date following the Cut-off Date shall belong
to the Purchaser.

         SECTION 3. Mortgage Loan Schedule. The Seller shall deliver the
Mortgage Loan Schedule to the Purchaser at least one (1) Business Day prior to
the Closing Date.

         SECTION 4. Purchase Price. The Purchase Price for the Mortgage Loans
shall be as set forth in the Purchase Price Terms Letter. Subject to the
conditions set forth herein, the Purchaser shall pay the Purchase Price plus
accrued interest on the Stated Principal Balance of each Mortgage Loan as of the
Cut-off Date at its Mortgage Rate (less the applicable Master Servicing Rate)
from the Cut-off Date through the day prior to the Closing Date, both inclusive,
to the Seller by 4:00 p.m. Eastern Time on the Closing Date. Such payment shall
be made by wire transfer of immediately available funds to the account
designated by the Seller.

         SECTION 5. Examination of Mortgage Files. In addition to any rights
granted to the Purchaser hereunder to underwrite the Mortgage Loans and review
the Mortgage Loan Documents prior to the Closing Date, the Seller shall, prior
to the Closing Date, make the Mortgage Files available to the Purchaser for
examination at the Seller's offices located at 1201 N. Main Street, 10th Floor,
Dallas, Texas. Such examination may be made by the Purchaser or its designee, at
its expense, at any reasonable time before the Closing Date. Such underwriting
by the Purchaser shall not impair or diminish the rights of the Purchaser or any
of its successors under this Agreement with respect to a breach of the
representations and warranties contained in this Agreement. The fact that the
Purchaser has conducted or has failed to conduct any partial or complete
examination of the Mortgage Files shall not affect the Purchaser's or any of its
successors' rights to demand repurchase or other relief or remedy provided for
in this Agreement.

         SECTION 6. Delivery of Mortgage Loan Documents.


         Subsection 6.01 Possession of Mortgage Files.

         The contents of each Mortgage File required to be retained by the
Seller, in its capacity as Master Servicer under the Pooling Agreement, to
service the Mortgage Loans pursuant to the Agreement and thus not delivered to
the Purchaser are and shall be held in trust by the Master Servicer for the
benefit of the Purchaser as the owner thereof. The Master Servicer's possession
of any portion of each such Mortgage File is at the will of the Purchaser for
the sole purpose of facilitating servicing of the Mortgage Loans pursuant to the
Pooling Agreement, and such retention and possession by the Master Servicer
shall be in a custodial capacity only. The ownership of each Mortgage Note,
Mortgage and the contents of the Mortgage File is vested in the Purchaser and
the ownership of all records and documents with respect to the related Mortgage
Loan prepared by or 



                                       6
<PAGE>   11

which come into the possession of the Master Servicer shall immediately vest in
the Purchaser and shall be retained and maintained, in trust, by the Master
Servicer at the will of the Purchaser in such custodial capacity only. The
Mortgage File retained by the Master Servicer with respect to each Mortgage Loan
pursuant to the Pooling Agreement and this Agreement shall be appropriately
identified in the Master Servicer's computer system to reflect clearly the sale
of such related Mortgage Loan to the Purchaser. The Master Servicer shall
release from its custody the contents of any Mortgage File retained by it only
in accordance with the Pooling Agreement and this Agreement, except when such
release is required in connection with a repurchase of any such Mortgage Loan
pursuant to the Pooling Agreement and this Agreement or if required under
applicable law or court order.

         Subsection 6.02 Books and Records.

         All rights arising out of the Mortgage Loans including, but not limited
to, all funds received by the Master Servicer after the Cut-off Date on or in
connection with a Mortgage Loan as provided in Section 2 shall be vested in the
Purchaser; provided, however, that all such funds received on or in connection
with a Mortgage Loan as provided in Section 2 shall be received and held by the
Master Servicer in trust for the benefit of the Purchaser as the owner of the
Mortgage Loans pursuant to the terms of this Agreement.

         It is the express intention of the parties that the transactions
contemplated by this Agreement be, and be construed as, a sale of the Mortgage
Loans by the Seller and not a pledge of the Mortgage Loans by the Seller to the
Purchaser to secure a debt or other obligation of the Seller. Consequently, the
sale of each Mortgage Loan shall be reflected as a purchase on the Purchaser's
business records, tax returns and financial statements, and as a sale of assets
on the Seller's business records, tax returns and financial statements.

         Subsection 6.03 Delivery of Mortgage Loan Documents.

         The Seller shall deliver the Mortgage Loan Documents with respect to
each Mortgage Loan to the Purchaser or its designee in accordance with Section
2.01(b) of the Pooling Agreement.

         SECTION 7. Representations, Warranties and Covenants; Remedies for
Breach.

         Subsection 7.01 Representations and Warranties Regarding Individual
Mortgage Loans.

         The Seller hereby represents and warrants to the Purchaser that, as to
each Mortgage Loan, as of the Closing Date or such other date specified herein:

                  (a) The information set forth in the Mortgage Loan Schedule is
         true and correct in all material respects.

                  (b) There are no delinquent taxes, ground rents, governmental
         assessments, insurance premiums, leasehold payments, including
         assessments payable in future 



                                       7
<PAGE>   12

         installments or other outstanding charges affecting the lien priority
         of the related Mortgaged Property.

                  (c) The terms of the Mortgage Note and the Mortgage have not
         been impaired, waived, altered or modified in any respect, except by
         written instruments, recorded in the applicable public recording office
         if necessary to maintain the lien priority of the Mortgage, and which
         have been delivered to the Purchaser; the substance of any such waiver,
         alteration or modification has been approved by the insurer under the
         Primary Mortgage Insurance Policy, if any, the title insurer, to the
         extent required by the related policy, and is reflected on the Mortgage
         Loan Schedule. No instrument of waiver, alteration or modification has
         been executed, and no Mortgagor has been released, in whole or in part,
         except in connection with an assumption agreement approved by the
         insurer under the Primary Mortgage Insurance Policy, if any, the title
         insurer, to the extent required by the policy, and which assumption
         agreement has been delivered to the Purchaser.

                  (d) The Mortgage Note and the Mortgage are not subject to any
         right of rescission, set-off, counterclaim or defense, including the
         defense of usury, nor will the operation of any of the terms of the
         Mortgage Note and the Mortgage, or the exercise of any right
         thereunder, render either the Mortgage Note or the Mortgage
         unenforceable, in whole or in part, or subject to any right of
         rescission, set-off, counterclaim or defense, including the defense of
         usury and no such right of rescission, set-off, counterclaim or defense
         has been asserted with respect thereto.

                  (e) All buildings upon the Mortgaged Property are insured by
         an insurer generally acceptable to prudent mortgage lending
         institutions against loss by fire, hazards of extended coverage and
         such other hazards as are customary in the area where the Mortgaged
         Property is located, pursuant to insurance policies conforming to the
         requirements of the Pooling Agreement. All such insurance policies
         contain a standard mortgagee clause naming the originator of the
         Mortgage Loan, its successors and assigns as mortgagee and all premiums
         thereon have been paid. If the Mortgaged Property is in an area
         identified on a flood hazard map or flood insurance rate map issued by
         the Federal Emergency Management Agency as having special flood hazards
         (and such flood insurance has been made available), a flood insurance
         policy meeting the requirements of the current guidelines of the
         Federal Insurance Administration is in effect which policy conforms to
         the requirements of FNMA or FHLMC. The Mortgage obligates the Mortgagor
         thereunder to maintain all such insurance at the Mortgagor's cost and
         expense, and on the Mortgagor's failure to do so, authorizes the holder
         of the Mortgage to maintain such insurance at Mortgagor's cost and
         expense and to seek reimbursement therefor from the Mortgagor.

                  (f) Any and all requirements of any federal, state or local
         law including, without limitation, usury, truth in lending, real estate
         settlement procedures, consumer credit protection, equal credit
         opportunity or disclosure laws applicable to the origination and
         servicing of Mortgage Loan have been complied with.

                  (g) The Mortgage has not been satisfied, canceled,
         subordinated or rescinded, in whole or in part (other than as to
         Principal Prepayments in full which may have been 



                                       8
<PAGE>   13

         received prior to the Closing Date), and the Mortgaged Property has not
         been released from the lien of the Mortgage, in whole or in part, nor
         has any instrument been executed that would effect any such
         satisfaction, cancellation, subordination, rescission or release.

                  (h) The Mortgage is a valid, existing and enforceable first
         lien on the Mortgaged Property, including all improvements on the
         Mortgaged Property subject only to (i) the lien of current real
         property taxes and assessments not yet due and payable, (ii) covenants,
         conditions and restrictions, rights of way, easements and other matters
         of the public record as of the date of recording being acceptable to
         mortgage lending institutions generally and specifically referred to in
         the lender's title insurance policy delivered to the originator of the
         Mortgage Loan and which do not adversely affect the Appraised Value of
         the Mortgaged Property, and (iii) other matters to which like
         properties are commonly subject which do not materially interfere with
         the benefits of the security intended to be provided by the Mortgage or
         the use, enjoyment, value or marketability of the related Mortgaged
         Property. Any security agreement, chattel mortgage or equivalent
         document related to and delivered in connection with the Mortgage Loan
         establishes and creates a valid, existing and enforceable first lien
         and first priority security interest on the property described therein
         and the Seller has the full right to sell and assign the same to the
         Purchaser.

                  (i) The Mortgage Note and the related Mortgage are genuine and
         each is the legal, valid and binding obligation of the maker thereof,
         enforceable in accordance with its terms except as enforceability may
         be limited by (i) bankruptcy, insolvency, liquidation, receivership,
         moratorium, reorganization or other similar laws affecting the
         enforcement of the rights of creditors and (ii) general principles of
         equity, whether enforcement is sought in a proceeding in equity or at
         law.

                  (j) All parties to the Mortgage Note and the Mortgage had
         legal capacity to enter into the Mortgage Loan and to execute and
         deliver the Mortgage Note and the Mortgage, and the Mortgage Note and
         the Mortgage have been duly and properly executed by such parties.

                  (k) The proceeds of the Mortgage Loan have been fully
         disbursed to or for the account of the Mortgagor and there is no
         obligation for the Mortgagee to advance additional funds thereunder and
         any and all requirements as to completion of any on-site or off-site
         improvement and as to disbursements of any escrow funds therefor have
         been complied with. All costs, fees and expenses incurred in making or
         closing the Mortgage Loan and the recording of the Mortgage have been
         paid, and the Mortgagor is not entitled to any refund of any amounts
         paid or due to the Mortgagee pursuant to the Mortgage Note or Mortgage.

                  (l) To the best of the Seller's knowledge, all parties which
         have had any interest in the Mortgage Loan, whether as mortgagee,
         assignee, pledgee or otherwise, are (or, during the period in which
         they held and disposed of such interest, were) in compliance with any
         and all applicable "doing business" and licensing requirements of the
         laws of the state wherein the Mortgaged Property is located.



                                       9
<PAGE>   14

                  (m) The Mortgage Loan is covered by an ALTA lender's title
         insurance policy, acceptable to FNMA or FHLMC, issued by a title
         insurer acceptable to FNMA or FHLMC and qualified to do business in the
         jurisdiction where the Mortgaged Property is located, insuring (subject
         to the exceptions contained in (h)(i) and (ii) above) the Seller, its
         successors and assigns as to the first priority lien of the Mortgage in
         the original principal amount of the Mortgage Loan. The Seller is the
         sole insured of such lender's title insurance policy, and such lender's
         title insurance policy is in full force and effect and will be in full
         force and effect upon the consummation of the transactions contemplated
         by this Agreement. No claims have been made under such lender's title
         insurance policy, and the Seller has not done, by act or omission,
         anything which would impair the coverage of such lender's title
         insurance policy.

                  (n) There is no default, breach, violation or event of
         acceleration existing under the Mortgage or the Mortgage Note and no
         event which, with the passage of time or with notice and the expiration
         of any grace or cure period, would constitute a default, breach,
         violation or event of acceleration, and the Seller has not waived any
         default, breach, violation or event of acceleration.

                  (o) As of the date of origination of the Mortgage Loan, there
         had been no mechanics' or similar liens or claims filed for work, labor
         or material (and no rights are outstanding that under law could give
         rise to such lien) affecting the related Mortgaged Property which are
         or may be liens prior to, or equal or coordinate with, the lien of the
         related Mortgage.

                  (p) All improvements which were considered in determining the
         Appraised Value of the related Mortgaged Property lay wholly within the
         boundaries and building restriction lines of the Mortgaged Property,
         and no improvements on adjoining properties encroach upon the Mortgaged
         Property.

                  (q) The Mortgage Loan was originated by a commercial bank or
         similar banking institution which is supervised and examined by a
         federal or state authority, or by a mortgagee approved by the Secretary
         of HUD.

                  (r) Principal payments on the Mortgage Loan commenced no more
         than sixty days after the proceeds of the Mortgage Loan were disbursed.
         The Mortgage Loans are 30-year fixed rate mortgage loans having an
         original term to maturity of not more than 30 years, with interest
         payable in arrears on the first day of the month. Each Mortgage Note
         requires a monthly payment which is sufficient to fully amortize the
         original principal balance over the original term thereof and to pay
         interest at the related Mortgage Interest Rate. The Mortgage Note does
         not permit negative amortization.

                  (s) There is no proceeding pending or, to the Seller's
         knowledge, threatened for the total or partial condemnation of the
         Mortgaged Property and such property is in good repair and is undamaged
         by waste, fire, earthquake or earth movement, windstorm, flood, tornado
         or other casualty, so as to affect adversely the value of the Mortgaged
         Property as security for the Mortgage Loan or the use for which the
         premises were intended.



                                       10
<PAGE>   15

                  (t) The Mortgage and related Mortgage Note contain customary
         and enforceable provisions such as to render the rights and remedies of
         the holder thereof adequate for the realization against the Mortgaged
         Property of the benefits of the security provided thereby, including
         (i) in the case of a Mortgage designated as a deed of trust, by
         trustee's sale, and (ii) otherwise by judicial foreclosure. To the best
         of the Seller's knowledge, following the date of origination of the
         Mortgage Loan, the Mortgaged Property has not been subject to any
         bankruptcy proceeding or foreclosure proceeding and the Mortgagor has
         not filed for protection under applicable bankruptcy laws. There is no
         homestead or other exemption or right available to the Mortgagor or any
         other person which would interfere with the right to sell the Mortgaged
         Property at a trustee's sale or the right to foreclose the Mortgage.

                  (u) The Mortgage Note and Mortgage are on forms acceptable to
         FNMA or FHLMC.

                  (v) The Mortgage Note is not and has not been secured by any
         collateral except the lien of the corresponding Mortgage on the
         Mortgaged Property and the security interest of any applicable security
         agreement or chattel mortgage referred to in (h) above.

                  (w) The Mortgage File contains an appraisal of the related
         Mortgaged Property, in a form acceptable to FNMA or FHLMC and such
         appraisal complies with the requirements of FIRREA, and was made and
         signed, prior to the approval of the Mortgage Loan application, by a
         Qualified Appraiser.

                  (x) In the event the Mortgage constitutes a deed of trust, a
         trustee, duly qualified under applicable law to serve as such, has been
         properly designated and currently so serves and is named in the
         Mortgage, and no fees or expenses are or will become payable by the
         Purchaser to the trustee under the deed of trust, except in connection
         with a trustee's sale after default by the Mortgagor.

                  (y) The Mortgage Loan is not a graduated payment mortgage loan
         and the Mortgage Loan does not have a shared appreciation or other
         contingent interest feature, nor does it contain any "buydown"
         provision which is currently in effect.

                  (z) The Mortgagor has received all disclosure materials
         required by applicable law with respect to the making of mortgage loans
         of the same type as the Mortgage Loan and rescission materials required
         by applicable law if the Mortgage Loan is a Refinanced Mortgage Loan.

                  (aa) Except for loan numbers 22009815 and 26310847, each
         Mortgage Loan with an LTV at origination in excess of 80% will be
         subject to a Primary Mortgage Insurance Policy, issued by an insurer
         acceptable to FNMA or FHLMC, which insures that portion of the Mortgage
         Loan in excess of the portion of the Appraised Value of the Mortgaged
         Property required by FNMA. All provisions of such Primary Mortgage
         Insurance Policy have been and are being complied with, such policy is
         in full force and effect, and all 



                                       11
<PAGE>   16

         premiums due thereunder have been paid. Any Mortgage subject to any
         such Primary Mortgage Insurance Policy obligates the Mortgagor
         thereunder to maintain such insurance and to pay all premiums and
         charges in connection therewith at least until the LTV of such Mortgage
         Loan is reduced to less than 80%. The Mortgage Interest Rate for the
         Mortgage Loan does not include any such insurance premium.

                  (bb) To the best of the Seller's knowledge as of the date of
         origination of the Mortgage Loan, (i) the Mortgaged Property is
         lawfully occupied under applicable law, (ii) all inspections, licenses
         and certificates required to be made or issued with respect to all
         occupied portions of the Mortgaged Property and, with respect to the
         use and occupancy of the same, including but not limited to
         certificates of occupancy, have been made or obtained from the
         appropriate authorities and (iii) no improvement located on or part of
         the Mortgaged Property is in violation of any zoning law or regulation.

                  (cc) The Assignment of Mortgage is in recordable form and is
         acceptable for recording under the laws of the jurisdiction in which
         the Mortgaged Property is located.

                  (dd) All payments required to be made prior to the Cut-off
         Date for such Mortgage Loan under the terms of the Mortgage Note have
         been made and no Mortgage Loan has been more than thirty (30) days
         delinquent more than once in the twelve month period immediately prior
         to the Cut-off Date.

                  (ee) With respect to each Mortgage Loan, the Seller is in
         possession of a complete Mortgage File except for the documents which
         have been delivered to the Purchaser or which have been submitted for
         recording and not yet returned.

                  (ff) Immediately prior to the payment of the Purchase Price,
         the Seller was the sole owner and holder of the Mortgage Loans. The
         Mortgage Loans were not assigned or pledged by the Seller and the
         Seller had good and marketable title thereto, and the Seller had full
         right to transfer and sell the Mortgage Loans to the Purchaser free and
         clear of any encumbrance, participation interest, lien, equity, pledge,
         claim or security interest and had full right and authority subject to
         no interest or participation in, or agreement with any other party to
         sell or otherwise transfer the Mortgage Loans.

                  (gg) Any future advances made prior to the Cut-off Date have
         been consolidated with the outstanding principal amount secured by the
         Mortgage, and the secured principal amount, as consolidated, bears a
         single interest rate and single repayment term. The lien of the
         Mortgage securing the consolidated principal amount is expressly
         insured as having first lien priority by a title insurance policy, an
         endorsement to the policy insuring the mortgagee's consolidated
         interest or by other title evidence acceptable to FNMA and FHLMC. The
         consolidated principal amount does not exceed the original principal
         amount of the Mortgage Loan.

                  (hh) The Mortgage Loan was underwritten in accordance with the
         Underwriting Guidelines in effect at the time of origination with
         exceptions thereto exercised in a reasonable manner.



                                       12
<PAGE>   17

                  (ii) With respect to Mortgage Loans that are secured by a
         leasehold estate, the lease is valid, in full force and effect, and
         conforms generally to the Underwriting Guidelines for leasehold
         estates.

                  (jj) The Mortgaged Property is located in the state identified
         in the Mortgage Loan Schedule and consists of a parcel of real property
         with a detached single family residence erected thereon, or a two- to
         four-family dwelling, or an individual condominium unit, or an
         individual unit in a planned unit development; provided, however, that
         any condominium project or planned unit development generally conforms
         with the Underwriting Guidelines regarding such dwellings, and no
         residence or dwelling is a mobile home or a manufactured dwelling.

                  (kk) The Seller used no adverse selection procedures in
         selecting the Mortgage Loan from among the outstanding first-lien,
         residential mortgage loans owed by it which were available for
         inclusion in the Mortgage Loans.

                  (ll) Each Mortgage Loan is a "qualified mortgage" within
         Section 860G(a)(3) of the Code.

                  (mm) With respect to each Mortgage where a lost note affidavit
         has been delivered to the Trustee in place of the related Mortgage
         Note, the related Mortgage Note is no longer in existence.

         Subsection 7.02 Seller Representations.

         The Seller hereby represents and warrants to the Purchaser that, as of
the Closing Date:

                  (a) The Seller is a corporation duly organized, validly
         existing, and in good standing under the laws of the State of Texas and
         has all licenses necessary to carry on its business as now being
         conducted and is licensed, qualified and in good standing in the states
         where the Mortgaged Property is located if the laws of such state
         require licensing or qualification in order to conduct business of the
         type conducted by the Seller. The Seller has corporate power and
         authority to execute and deliver this Agreement and to perform in
         accordance herewith; the execution, delivery and performance of this
         Agreement (including all instruments of transfer to be delivered
         pursuant to this Agreement) by the Seller and the consummation of the
         transactions contemplated hereby have been duly and validly authorized.
         This Agreement, assuming due authorization, execution and delivery by
         the Purchaser, evidences the valid, binding and enforceable obligation
         of the Seller, subject to applicable law except as enforceability may
         be limited by (i) bankruptcy, insolvency, liquidation, receivership,
         moratorium, reorganization or other similar laws affecting the
         enforcement of the rights of creditors and (ii) general principles of
         equity, whether enforcement is sought in a proceeding in equity or at
         law. All requisite corporate action has been taken by the Seller to
         make this Agreement valid and binding upon the Seller in accordance
         with its terms.



                                       13
<PAGE>   18

                  (b) No consent, approval, authorization or order is required
         for the transactions contemplated by this Agreement from any court,
         governmental agency or body, or federal or state regulatory authority
         having jurisdiction over the Seller is required or, if required, such
         consent, approval, authorization or order has been or will, prior to
         the Closing Date, be obtained.

                  (c) The consummation of the transactions contemplated by this
         Agreement are in the ordinary course of business of the Seller and will
         not result in the breach of any term or provision of the charter or
         by-laws of the Seller or result in the breach of any term or provision
         of, or conflict with or constitute a default under or result in the
         acceleration of any obligation under, any agreement, indenture or loan
         or credit agreement or other instrument to which the Seller or its
         property is subject, or result in the violation of any law, rule,
         regulation, order, judgment or decree to which the Seller or its
         property is subject.

                  (d) The transfer, assignment and conveyance of the Mortgage
         Notes and the Mortgages by the Seller pursuant to this Agreement are
         not subject to the bulk transfer or any similar statutory provisions in
         effect in any applicable jurisdiction.

                  (e) There is no action, suit, proceeding or investigation
         pending or, to the best knowledge of the Seller, threatened against the
         Seller which, either individually or in the aggregate, would result in
         any material adverse change in the business, operations, financial
         condition, properties or assets of the Seller, or in any material
         impairment of the right or ability of the Seller to carry on its
         business substantially as now conducted or which would draw into
         question the validity of this Agreement or the Mortgage Loans or of any
         action taken or to be taken in connection with the obligations of the
         Seller contemplated herein, or which would materially impair the
         ability of the Seller to perform under the terms of this Agreement.

                  (f) The Seller does not believe, nor does it have any reason
         or cause to believe, that it cannot perform each and every covenant
         contained in this Agreement.

         Subsection 7.03 Remedies for Breach of Representations and Warranties.

         It is understood and agreed that the representations and warranties set
forth in Subsections 7.01 and 7.02 shall survive the sale of the Mortgage Loans
to the Purchaser and shall inure to the benefit of the Purchaser,
notwithstanding any restrictive or qualified endorsement on any Mortgage Note or
Assignment of Mortgage or the examination or lack of examination of any Mortgage
File. Upon discovery by either the Seller or the Purchaser of a breach of any of
the foregoing representations and warranties which materially and adversely
affects the value of the Mortgage Loans or the interest of the Purchaser therein
(or which materially and adversely affects the interest of the Purchaser in or
the value of the related Mortgage Loan in the case of a representation and
warranty relating to a particular Mortgage Loan), the party discovering such
breach shall give prompt written notice to the others.

         Within ninety (90) days of the earlier of either discovery by or notice
to the Seller of any breach of a representation or warranty which materially and
adversely affects the value of a 



                                       14
<PAGE>   19

Mortgage Loan or the Mortgage Loans or the interest of the Purchaser therein,
the Seller shall use its best efforts promptly to cure such breach in all
material respects and, if such breach cannot be cured, the Seller shall
repurchase such Mortgage Loan or Mortgage Loans at the Repurchase Price.
However, the Seller may, at its option and assuming that Seller has a Substitute
Mortgage Loan, rather than repurchase the Mortgage Loan as provided above,
remove such Mortgage Loan and substitute in its place a Substitute Mortgage Loan
or Loans; provided, however, that any such substitution shall be effected within
two (2) years of the Closing Date. If the Seller has no Substitute Mortgage
Loan, it shall repurchase the deficient Mortgage Loan. Any repurchase of a
Mortgage Loan pursuant to the foregoing provisions of this Subsection 7.03 shall
occur on a date designated by the Purchaser and shall be accomplished by the
Seller remitting to the Master Servicer for deposit the amount of the Repurchase
Price in the Collection Account for distribution to the Purchaser on the next
scheduled Master Servicer Advance Date.

         At the time of repurchase of any deficient Mortgage Loan (or removal of
any Deleted Mortgage Loan), the Purchaser and the Seller shall arrange for the
assignment of the repurchased Mortgage Loan (or Deleted Mortgage Loan) to the
Seller or its designee and the delivery to the Seller of any documents held by
the Purchaser relating to the repurchased Mortgage Loan in the manner required
by this Agreement with respect to the purchase and sale of such Mortgage Loan on
the Closing Date. In the event the Repurchase Price is deposited in the
Collection Account, the Seller shall, simultaneously with its remittance to the
Master Servicer of such Repurchase Price for deposit, give written notice to the
Purchaser that such deposit has taken place. Upon such repurchase, the Mortgage
Loan Schedule shall be amended to reflect the withdrawal of the repurchased
Mortgage Loan from this Agreement.

         As to any Deleted Mortgage Loan for which the Seller substitutes one or
more Substitute Mortgage Loans, the Seller shall effect such substitution by
delivering to the Purchaser for each Substitute Mortgage Loan the Mortgage Note,
the Mortgage, the Assignment of Mortgage and such other documents and agreements
as are required by Subsection 6.03. The Seller shall remit to the Master
Servicer for deposit in the Collection Account the Monthly Payment due on each
Substitute Mortgage Loan in the month following the date of such substitution.
Monthly Payments due with respect to Substitute Mortgage Loans in the month of
substitution will be retained by the Seller. For the month of substitution,
distributions to the Purchaser will include the Monthly Payment due on such
Deleted Mortgage Loan in the month of substitution, and the Seller shall
thereafter be entitled to retain all amounts subsequently received by the Seller
in respect of such Deleted Mortgage Loan. The Seller shall give written notice
to the Purchaser that such substitution has taken place and shall amend the
Mortgage Loan Schedule to reflect the removal of such Deleted Mortgage Loan from
the terms of this Agreement and the substitution of the Substitute Mortgage
Loan. Upon such substitution, each Substitute Mortgage Loan shall be subject to
the terms of this Agreement in all respects, and the Seller shall be deemed to
have made with respect to such Substitute Mortgage Loan, as of the date of
substitution, the covenants, representations and warranties set forth in
Subsections 7.01 and 7.02.

         For any month in which the Seller substitutes one or more Substitute
Mortgage Loans for one or more Deleted Mortgage Loans, the Seller will determine
the amount (if any) by which the aggregate principal balance of all such
Substitute Mortgage Loans as of the date of substitution is less than the
aggregate Stated Principal Balance of all such Deleted Mortgage Loans (after


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<PAGE>   20

application of scheduled principal payments due in the month of substitution).
The amount of such shortfall, plus an amount equal to the aggregate of any
Monthly Advances made with respect to such Deleted Mortgage Loans pursuant to
the Pooling Agreement, shall be remitted to the Master Servicer by the Seller
for distribution by the Master Servicer in the month of substitution.
Accordingly, on the date of such substitution, the Seller will remit to the
Master Servicer from its own funds for deposit into the Collection Account an
amount equal to the amount of such shortfall.

         No action may be brought against the Seller relating to or arising out
of the breach of any representations and warranties made in Subsections 7.01 or
7.02 with respect to any Mortgage Loan unless and until (i) discovery of such
breach by the Purchaser or notice thereof by the Seller to Purchaser, (ii)
failure by the Seller to cure such breach, repurchase such Mortgage Loan as
specified above or substitute a Substitute Mortgage Loan for such Mortgage Loan
as specified above and (iii) demand upon the Seller by the Purchaser for
compliance with the terms of this Agreement.

         It is understood and agreed that the obligations of the Seller set
forth in this Subsection 7.03 to cure, repurchase or substitute for a defective
Mortgage Loan constitute the sole remedies of the Purchaser respecting a breach
of the representations and warranties set forth in Subsections 7.01 and 7.02.

         Notwithstanding anything herein to the contrary, (i) to the extent this
Subsection 7.03 is inconsistent in any respect with the Pooling Agreement, the
provisions of the Pooling Agreement shall control, and (ii) the Seller agrees to
abide by the repurchase and substitution requirements set forth in Sections
2.02, 2.03 and 2.08 of the Pooling Agreement.

         SECTION 8. Closing. The closing for the purchase and sale of the
Mortgage Loans shall take place on the Closing Date. The closing shall be by
telephone, confirmed by letter or wire as the parties shall agree. The closing
shall be subject to each of the following conditions:

                  (a) all of the representations and warranties of the Seller in
         this Agreement shall be true and correct as of the Closing Date and no
         event shall have occurred which, with notice or the passage of time,
         would constitute an Event of Default under this Agreement;

                  (b) the Seller's attorneys shall have received in escrow, all
         Closing Documents as specified in Section 9, in such forms as are
         agreed upon and acceptable to the Purchaser, duly executed by all
         signatories as required pursuant to the terms hereof; and

                  (c) all other terms and conditions of this Agreement shall
         have been complied with.

         SECTION 9. Closing Documents. On the Closing Date, the Seller shall
deliver to its attorneys in escrow fully executed originals of:

                  (a) this Agreement, executed by the Seller;

                  (b) the Purchase Price Terms Letter, executed by the Seller;
         and



                                       16
<PAGE>   21

                  (c) the Mortgage Loan Schedule, one copy to be attached
         hereto.

         SECTION 10. Costs. The Seller shall pay any commissions due its
salesmen and the legal fees and expenses of its attorneys. All other costs and
expenses incurred in connection with the transfer and delivery of the Mortgage
Loans, including without limitation recording fees and the Purchaser's
attorney's fees, shall be paid by the Purchaser.

         SECTION 11. Notices. All demands, notices and communications hereunder
shall be in writing and shall be deemed to have been duly given if mailed, by
registered or certified mail, return receipt requested, or, if by other means,
when received by the other party at the address as follows:

         (a)      if to the Purchaser:

                  NationsBanc Montgomery Funding Corp.
                  100 North Tryon Street
                  Charlotte, North Carolina 28255

         (b)      if to the Seller:

                  NationsBanc Mortgage Corporation
                  201 North Tryon Street
                  Charlotte, North Carolina 28255
                  Attn:  General Counsel

                  With a copy to the Treasurer of the Seller at the same
address.

or such other address as may hereafter be furnished to the other party by like
notice. Any such demand, notice or communication hereunder shall be deemed to
have been received on the date delivered to or received at the premises of the
addressee (as evidenced, in the case of registered or certified mail, by the
date noted on the return receipt).

         SECTION 12. Severability Clause. Any part, provision, representation or
warranty of this Agreement which is prohibited or which is held to be void or
unenforceable shall be ineffective to the extent of such prohibition or
unenforceability without invalidating the remaining provisions hereof. Any part,
provision, representation or warranty of this Agreement which is prohibited or
unenforceable or is held to be void or unenforceable in any jurisdiction shall
be ineffective, as to such jurisdiction, to the extent of such prohibition or
unenforceability without invalidating the remaining provisions hereof, and any
such prohibition or unenforceability in any jurisdiction as to any Mortgage Loan
shall not invalidate or render unenforceable such provision in any other
jurisdiction. To the extent permitted by applicable law, the parties hereto
waive any provision of law which prohibits or renders void or unenforceable any
provision hereof. If the invalidity of any part, provision, representation or
warranty of this Agreement shall deprive any party of the economic benefit
intended to be conferred by this Agreement, the parties shall negotiate, in
good-faith, to develop a structure the economic effect of which is nearly as
possible the same as the economic effect of this Agreement without regard to
such invalidity.



                                       17
<PAGE>   22

         SECTION 13. No Partnership. Nothing herein contained shall be deemed or
construed to create a co-partnership or joint venture between the parties
hereto.

         SECTION 14. Counterparts. This Agreement may be executed simultaneously
in any number of counterparts. Each counterpart shall be deemed to be an
original, and all such counterparts shall constitute one and the same
instrument.

         SECTION 15. Governing Law. EXCEPT TO THE EXTENT PREEMPTED BY FEDERAL
LAW, THE AGREEMENT SHALL BE CONSTRUED IN ACCORDANCE WITH THE LAWS OF THE STATE
OF NEW YORK AND THE OBLIGATIONS, RIGHTS AND REMEDIES OF THE PARTIES HEREUNDER
SHALL BE DETERMINED IN ACCORDANCE WITH THE LAWS OF THE STATE OF NEW YORK,
WITHOUT REGARD TO THE CONFLICTS OF LAWS PROVISIONS OF NEW YORK OR ANY OTHER
JURISDICTION.

         SECTION 16. Intention of the Parties. It is the intention of the
parties that the Purchaser is purchasing, and the Seller is selling, the
Mortgage Loans and not a debt instrument of the Seller or another security.
Accordingly, the parties hereto each intend to treat the transaction for federal
income tax purposes as a sale by the Seller, and a purchase by the Purchaser, of
the Mortgage Loans. The Purchaser shall have the right to review the Mortgage
Loans and the related Mortgage Files to determine the characteristics of the
Mortgage Loans which shall affect the federal income tax consequences of owning
the Mortgage Loans and the Seller shall cooperate with all reasonable requests
made by the Purchaser in the course of such review.

         It is not the intention of the parties that such conveyances be deemed
a pledge thereof. However, in the event that, notwithstanding the intent of the
parties, such assets are held to be the property of the Seller or if for any
other reason this Agreement is held or deemed to create a security interest in
either such assets, then (a) this Agreement shall be deemed to be a security
agreement within the meaning of the Uniform Commercial Code of the State of New
York and (b) the conveyances provided for in this Agreement shall be deemed to
be an assignment and a grant by the Seller to the Purchaser of a security
interest in all of the assets transferred, whether now owned or hereafter
acquired.

         SECTION 17. Successors and Assigns. This Agreement shall bind and inure
to the benefit of and be enforceable by the Purchaser and the Seller, and the
respective successors and assigns of the Purchaser and the Seller.
Notwithstanding anything herein to the contrary, the Seller and the Purchaser
hereby acknowledge and agree that the Purchaser is assigning its rights and
obligations under this Agreement to the Trustee, for the benefit of the Trust,
pursuant to the Pooling Agreement. On and after the Closing Date, the Seller
agrees to recognize the Trust as the "Purchaser" for all purposes under this
Agreement.

         SECTION 18. Waivers. No term or provision of this Agreement may be
waived or modified unless such waiver or modification is in writing and signed
by the party against whom such waiver or modification is sought to be enforced.



                                       18
<PAGE>   23

         SECTION 19. Exhibits. The exhibits to this Agreement are hereby
incorporated and made a part hereof and are an integral part of this Agreement.

         SECTION 20. General Interpretive Principles. For purposes of this
Agreement, except as otherwise expressly provided or unless the context
otherwise requires:

                  (a) the terms defined in this Agreement have the meanings
         assigned to them in this Agreement and include the plural as well as
         the singular, and the use of any gender herein shall be deemed to
         include the other gender;

                  (b) accounting terms not otherwise defined herein have the
         meanings assigned to them in accordance with generally accepted
         accounting principles;

                  (c) references herein to "Articles," "Sections,"
         "Subsections," "Paragraphs" and other subdivisions without reference to
         a document are to designated Articles, Sections, Subsections,
         Paragraphs and other subdivisions of this Agreement;

                  (d) reference to a Subsection without further reference to a
         Section is a reference to such Subsection as contained in the same
         Section in which the reference appears, and this rule shall also apply
         to Paragraphs and other subdivisions;

                  (e) the words "herein," "hereof," "hereunder" and other words
         of similar import refer to this Agreement as a whole and not to any
         particular provision; and

                  (f) the term "include" or "including" shall mean without
         limitation by reason of enumeration.

         SECTION 21. Reproduction of Documents. This Agreement and all documents
relating thereto, including, without limitation, (a) consents, waivers and
modifications which may hereafter be executed, (b) documents received by any
party at the closing, and (c) financial statements, certificates and other
information previously or hereafter furnished, may be reproduced by any
photographic, photostatic, microfilm, micro-card, miniature photographic or
other similar process. The parties hereto agree that any such reproduction shall
be admissible in evidence as the original itself in any judicial or
administrative proceeding, whether or not the original is in existence and
whether or not such reproduction was made by a party hereto in the regular
course of business, and that any enlargement, facsimile or further reproduction
of such reproduction shall likewise be admissible in evidence.

         SECTION 22. Amendment. This Agreement may be amended from time to time
by the Purchaser and the Seller by written agreement signed by the parties
hereto.

         SECTION 23. Confidentiality. Each of the Purchaser and the Seller shall
employ proper procedures and standards designed to maintain the confidential
nature of the terms of this Agreement, except to the extent: (a) the disclosure
of which is reasonably believed by such party to be required in connection with
regulatory requirements or other legal requirements relating to its affairs; (b)
disclosed to any one or more of such party's employees, officers, directors,
agents, 



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<PAGE>   24

attorneys or accountants who would have access to the contents of this Agreement
and such data and information in the normal course of the performance of such
person's duties for such party, to the extent such party has procedures in
effect to inform such person of the confidential nature thereof; (c) that is
disclosed in a prospectus, prospectus supplement or private placement memorandum
relating to a securitization of the Mortgage Loans by the Purchaser or to any
person in connection with the resale or proposed resale of all or a portion of
the Mortgage Loans by such party in accordance with the terms of this Agreement;
and (d) that is reasonably believed by such party to be necessary for the
enforcement of such party's rights under this Agreement.

         SECTION 24. Entire Agreement. This Agreement constitutes the entire
agreement and understanding relating to the subject matter hereof between the
parties hereto and any prior oral or written agreements between them shall be
deemed to have merged herewith.

         SECTION 25. Further Agreements. The Seller and the Purchaser each agree
to execute and deliver to the other such reasonable and appropriate additional
documents, instruments or agreements as may be necessary or appropriate to
effectuate the purposes of this Agreement.



                                       20
<PAGE>   25

         IN WITNESS WHEREOF, the Purchaser and the Seller have caused their
names to be signed hereto by their respective officers thereunto duly authorized
on the date first above written.


                                    NATIONSBANC MONTGOMERY FUNDING CORP.,
                                      as Purchaser


                                    By:     /s/ Robert J. Perret
                                            ------------------------------------
                                    Name:   Robert J. Perret
                                    Title:  Senior Vice President



                                    NATIONSBANC MORTGAGE CORPORATION,
                                      as Seller


                                    By:     /s/ Thomas W. Neary
                                            ------------------------------------
                                    Name:   Thomas W. Neary
                                    Title:  Senior Vice President






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