CWMBS INC
S-3, 1996-07-18
ASSET-BACKED SECURITIES
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<PAGE>
<PAGE>
           AS FILED WITH THE SECURITIES AND EXCHANGE COMMISSION ON JULY 18, 1996
                                                     REGISTRATION NO. 333-
________________________________________________________________________________
                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549
                            ------------------------
 
                                    FORM S-3
                             REGISTRATION STATEMENT
                                      AND
                         POST-EFFECTIVE AMENDMENT NO. 1
                                     UNDER
                           THE SECURITIES ACT OF 1933
                            ------------------------
 
                                  CWMBS, INC.
             (EXACT NAME OF REGISTRANT AS SPECIFIED IN ITS CHARTER)
                            ------------------------
 
<TABLE>
<S>                                                                <C>
                            DELAWARE                                                          95-4449516
 (STATE OR OTHER JURISDICTION OF INCORPORATION OR ORGANIZATION)                 (I.R.S. EMPLOYER IDENTIFICATION NUMBER)
</TABLE>
 
                             155 NORTH LAKE AVENUE
                           PASADENA, CALIFORNIA 91101
                                 (800) 669-6655
  (ADDRESS, INCLUDING ZIP CODE, AND TELEPHONE NUMBER, INCLUDING AREA CODE, OF
                   REGISTRANT'S PRINCIPAL EXECUTIVE OFFICES)
                            ------------------------
 
                            SANDOR E. SAMUELS, ESQ.
                        COUNTRYWIDE FUNDING CORPORATION
                             155 NORTH LAKE AVENUE
                           PASADENA, CALIFORNIA 91101
                                 (818) 304-8505
 (NAME, ADDRESS, INCLUDING ZIP CODE, AND TELEPHONE NUMBER, INCLUDING AREA CODE,
                             OF AGENT FOR SERVICE)
                            ------------------------
 
                                WITH A COPY TO:
                              EDWARD J. FINE, ESQ.
                                BROWN & WOOD LLP
                             ONE WORLD TRADE CENTER
                            NEW YORK, NEW YORK 10048
                            ------------------------
 
     APPROXIMATE  DATE OF COMMENCEMENT OF PROPOSED SALE TO THE PUBLIC: From time
to time  on  or after  the  effective date  of  the registration  statement,  as
determined by market conditions.
                            ------------------------
 
     If  the only  securities being  registered on  this form  are being offered
pursuant to dividend or interest reinvestment plans, please check the  following
box. [ ]
 
     If any of the securities being registered on this form are to be offered on
a  delayed or continuous basis pursuant to  Rule 415 under the Securities Act of
1933, please check the following box. [x]
                            ------------------------
 
                        CALCULATION OF REGISTRATION FEE
 
[CAPTION]
<TABLE>
                                                                         PROPOSED             PROPOSED
                                                     AMOUNT               MAXIMUM              MAXIMUM             AMOUNT OF
           TITLE OF EACH CLASS OF                     TO BE           OFFERING PRICE          AGGREGATE          REGISTRATION
         SECURITIES TO BE REGISTERED               REGISTERED            PER UNIT*         OFFERING PRICE*            FEE
<S>                                            <C>                  <C>                  <C>                  <C>
Mortgage Pass-Through Certificates...........    $2,750,000,000            100%            $2,750,000,000         $948,275.86
</TABLE>
 
* Estimated for the purpose of calculating the registration fee.
                            ------------------------
 
     Pursuant to  Rule 429  under the  Securities Act  of 1933,  the  Prospectus
included  in this Registration Statement is a combined prospectus and relates to
registration statement No. 33-84910 as previously filed by the Registrant.  Such
registration  statement No. 33-84910 was declared effective on November 4, 1994.
This Registration  Statement,  which  is  a  new  registration  statement,  also
constitutes  Post-Effective  Amendment  No.  1  to  registration  statement  No.
33-84910  and  such  Post-Effective  Amendment  No.  1  shall  become  effective
concurrently  with  the  effectiveness  of this  Registration  Statement  and in
accordance with Section 8(c) of the Securities Act of 1933.
                            ------------------------
 
     THE REGISTRANT HEREBY AMENDS  THIS REGISTRATION STATEMENT  ON SUCH DATE  OR
DATES  AS MAY BE  NECESSARY TO DELAY  ITS EFFECTIVE DATE  UNTIL THE REGISTRATION
SHALL FILE A FURTHER AMENDMENT WHICH SPECIFICALLY STATES THAT THIS  REGISTRATION
STATEMENT  SHALL THEREAFTER BECOME EFFECTIVE IN  ACCORDANCE WITH SECTION 8(a) OF
THE SECURITIES ACT  OF 1933, OR  UNTIL THE REGISTRATION  STATEMENT SHALL  BECOME
EFFECTIVE  ON SUCH DATE AS THE COMMISSION, ACTING PURSUANT TO SAID SECTION 8(a),
MAY DETERMINE.
 
________________________________________________________________________________




<PAGE>
<PAGE>
INFORMATION   CONTAINED  HEREIN  IS  SUBJECT   TO  COMPLETION  OR  AMENDMENT.  A
REGISTRATION STATEMENT  RELATING TO  THESE SECURITIES  HAS BEEN  FILED WITH  THE
SECURITIES  AND EXCHANGE  COMMISSION. THESE SECURITIES  MAY NOT BE  SOLD NOR MAY
OFFERS TO BUY BE ACCEPTED PRIOR  TO THE TIME THE REGISTRATION STATEMENT  BECOMES
EFFECTIVE.  THIS  PROSPECTUS  SHALL  NOT  CONSTITUTE AN  OFFER  TO  SELL  OR THE
SOLICITATION OF AN OFFER TO BUY NOR SHALL THERE BE ANY SALE OF THESE  SECURITIES
IN  ANY STATE IN WHICH SUCH OFFER, SOLICITATION, OR SALE WOULD BE UNLAWFUL PRIOR
TO REGISTRATION OR QUALIFICATION UNDER THE SECURITIES LAWS OF ANY SUCH STATE.
 
                   SUBJECT TO COMPLETION, DATED JULY 18, 1996
 
PROSPECTUS SUPPLEMENT
(TO PROSPECTUS DATED                    )
 
                             $
                                 (APPROXIMATE)
 
                                  CWMBS, INC.
                                   DEPOSITOR
 
                            [COUNTRYWIDE HOME LOANS]
 
                           SELLER AND MASTER SERVICER
 
              MORTGAGE PASS-THROUGH CERTIFICATES, SERIES 19
  DISTRIBUTIONS PAYABLE ON THE   TH DAY OF EACH MONTH, COMMENCING IN       19
 
                            ------------------------
 
     The Mortgage Pass-Through  Certificates, Series  19     (collectively,  the
'Certificates')  will represent the  entire beneficial interest  in a Trust Fund
consisting primarily  of a  pool (the  'Mortgage Pool')  of fixed-rate  Mortgage
Loans secured by first liens on one- to four-family residential properties. Only
the   Classes  identified  in  the   table  below  (collectively,  the  'Offered
Certificates') are offered hereby.

                            ------------------------
 
     THE CERTIFICATES  DO NOT  REPRESENT AN  INTEREST IN  OR OBLIGATION  OF  THE
DEPOSITOR,  THE  SELLER,  THE  MASTER  SERVICER, THE  TRUSTEE  OR  ANY  OF THEIR
RESPECTIVE AFFILIATES.  NEITHER  THE CERTIFICATES  NOR  THE MORTGAGE  LOANS  ARE
INSURED OR GUARANTEED BY ANY GOVERNMENTAL ENTITY, THE DEPOSITOR, THE SELLER, THE
MASTER  SERVICER, THE TRUSTEE  OR ANY OF  THEIR AFFILIATES OR  ANY OTHER PERSON.
DISTRIBUTIONS ON  THE  CERTIFICATES  WILL  BE PAYABLE  SOLELY  FROM  THE  ASSETS
TRANSFERRED TO THE TRUST FUND FOR THE BENEFIT OF CERTIFICATEHOLDERS.
 
THESE  SECURITIES HAVE  NOT BEEN APPROVED  OR DISAPPROVED BY  THE SECURITIES AND
   EXCHANGE  COMMISSION  OR  ANY  STATE  SECURITIES  COMMISSION  NOR  HAS  THE
       SECURITIES   AND  EXCHANGE  COMMISSION   OR  ANY  STATE  SECURITIES
         COMMISSION PASSED  UPON  THE  ACCURACY  OR  ADEQUACY  OF  THIS
            PROSPECTUS    SUPPLEMENT   OR   THE   PROSPECTUS.   ANY
             REPRESENTATION TO THE CONTRARY IS A CRIMINAL OFFENSE.
 
<TABLE>
<CAPTION>
                                                                          INITIAL CLASS CERTIFICATE
                                                                                 BALANCE (1)                PASS-THROUGH RATE
<S>                                                                       <C>                               <C>
Class A-                                                                         $                                     %
Class                                                                            $                                     %
Class PO                                                                         $                                  (2)
Class X                                                                              (3)                            (4)
Class A-R                                                                        $                                     %
Class B-                                                                         $                                     %
Class                                                                            $                                     %
Class                                                                            $                                     %
</TABLE>
 
(1) Subject to the permitted variance described herein.
 
(2) The  Class PO Certificates will be  Principal Only Certificates and will not
    bear interest.
 
(3) The Class X Certificates will be Notional Amount Certificates, will have  no
    principal balance and will bear interest on their Notional Amount (initially
    expected to be approximately $          ).
 
(4) The Pass-Through Rate for the Class X Certificates for any Distribution Date
    will  be equal to the excess of (a) the weighted average of the Net Mortgage
    Rates of  the Non-Discount  Mortgage Loans  over (b)      %  per annum.  The
    Pass-Through  Rate for the  Class X Certificates  for the first Distribution
    Date is expected to be approximately      % per annum.
 
     The Senior Certificates, other than the  Class PO and Class X  Certificates
(the    'Underwritten    Senior   Certificates'),    will   be    purchased   by
                                     and the Class
Certificates  (together   with  the   Underwritten  Senior   Certificates,   the
'Underwritten  Certificates') offered  hereby will  be purchased  by
            (each, an 'Underwriter') from the  Depositor and will be offered  by
the  Underwriters from time  to time in negotiated  transactions or otherwise at
varying prices to be determined at the  time of sale. Proceeds to the  Depositor
from  the sale of the Underwritten Certificates are expected to be approximately
$           , plus accrued interest, before deducting issuance expenses  payable
by the Depositor. The Class   , Class PO and Class X Certificates will be issued
to the Depositor on or about           19  as partial consideration for the sale
of the Mortgage Loans to the Trust Fund.
 
     The  Underwritten Certificates are offered  by the respective Underwriters,
subject to  prior  sale, when,  as  and if  delivered  to and  accepted  by  the
Underwriters and subject to their right to reject orders in whole or in part. It
is  expected that delivery  of the Underwritten  Senior Certificates, other than
the Class A-R  Certificates, will be  made in book-entry  form only through  the
facilities of The Depository Trust Company, that the Class A-R Certificates will
be delivered at the offices of                                      in New York,
New  York and that the Class                                Certificates will be
delivered at the offices of                       in New York, New York, in each
case on or about          , 19  .
 
         , 19
 

<PAGE>
<PAGE>
     The Mortgage  Loans will  be sold  to the  Depositor by  [Countrywide  Home
Loans, Inc. ('Countrywide')].
 
     For federal income tax purposes, the Trust Fund will include two segregated
asset  pools, with respect  to which elections will  be made to  treat each as a
'real estate mortgage investment conduit'  (a 'REMIC'). See 'Description of  the
Certificates -- Separate REMIC Structure' herein. As described more fully herein
and  in the Prospectus, the Certificates, other than the Class A-R Certificates,
will be designated as the 'regular interests' in the Master REMIC. The Class A-R
Certificates  will  constitute  the   beneficial  ownership  of  the   'residual
interests'  in  both  the Master  REMIC  and the  Subsidiary  REMIC. Prospective
investors are  cautioned  that a  Class  A-R Certificateholder's  REMIC  taxable
income  and the tax liability thereon  will exceed cash distributions in certain
periods, in which event such holder must have sufficient alternative sources  of
funds  to pay such tax liability.  See 'Certain Federal Income Tax Consequences'
herein and in the Prospectus.
 
     The  Class  A-R   Certificates  will   be  subject   to  certain   transfer
restrictions.  See 'Description of the  Certificates -- Restrictions on Transfer
of the Class A-R Certificates.'
 
     THE YIELD  TO INVESTORS  ON  EACH CLASS  OF  OFFERED CERTIFICATES  WILL  BE
SENSITIVE  IN VARYING  DEGREES TO,  AMONG OTHER THINGS,  THE RATE  AND TIMING OF
PRINCIPAL PAYMENTS (INCLUDING PREPAYMENTS) OF THE MORTGAGE LOANS, WHICH MAY VARY
SIGNIFICANTLY  OVER  TIME.  THE  YIELD  TO  MATURITY  OF  A  CLASS  OF   OFFERED
CERTIFICATES  PURCHASED AT A DISCOUNT  OR PREMIUM WILL BE  MORE SENSITIVE TO THE
RATE AND TIMING OF PAYMENTS THEREON. HOLDERS OF THE OFFERED CERTIFICATES  SHOULD
CONSIDER,  IN THE  CASE OF  ANY SUCH CERTIFICATES  PURCHASED AT  A DISCOUNT, AND
PARTICULARLY THE  PRINCIPAL  ONLY CERTIFICATES,  THE  RISK THAT  A  SLOWER  THAN
ANTICIPATED  RATE OF PRINCIPAL PAYMENTS ON THE MORTGAGE LOANS COULD RESULT IN AN
ACTUAL YIELD THAT IS LOWER  THAN THE ANTICIPATED YIELD AND,  IN THE CASE OF  ANY
OFFERED  CERTIFICATES PURCHASED AT A PREMIUM  AND PARTICULARLY THE INTEREST ONLY
CERTIFICATES, THE RISK THAT A FASTER THAN ANTICIPATED RATE OF PRINCIPAL PAYMENTS
ON THE MORTGAGE LOANS  COULD RESULT IN  AN ACTUAL YIELD THAT  IS LOWER THAN  THE
ANTICIPATED  YIELD. HOLDERS OF  THE INTEREST ONLY  CERTIFICATES SHOULD CAREFULLY
CONSIDER THE RISK THAT A RAPID RATE OF PRINCIPAL PAYMENTS ON THE MORTGAGE  LOANS
COULD   RESULT  IN  THE  FAILURE  OF  SUCH  HOLDERS  TO  RECOVER  THEIR  INITIAL
INVESTMENTS.  THE  YIELD   TO  INVESTORS  IN   THE  OFFERED  CERTIFICATES,   AND
PARTICULARLY  THE CLASS                                  CERTIFICATES, ALSO WILL
BE ADVERSELY AFFECTED  BY NET  INTEREST SHORTFALLS  AND BY  REALIZED LOSSES.  NO
REPRESENTATION IS MADE AS TO THE ANTICIPATED RATE OF PREPAYMENTS ON THE MORTGAGE
LOANS,  THE AMOUNT AND TIMING OF NET  INTEREST SHORTFALLS OR REALIZED LOSSES, OR
AS TO THE RESULTING YIELD TO MATURITY OF ANY CLASS OF CERTIFICATES.
 
     Each Underwriter  intends to  make a  secondary market  in the  Classes  of
Underwritten  Certificates  being purchased  by it,  but  no Underwriter  has an
obligation to do  so. There  is currently no  secondary market  for the  Offered
Certificates  and there can be no assurance  that such a market will develop or,
if  it  does  develop,   that  it  will  continue   or  that  it  will   provide
Certificateholders with a sufficient level of liquidity of investment.
                            ------------------------
     This  Prospectus Supplement does not contain complete information about the
offering of the Offered Certificates. Additional information is contained in the
Prospectus of the Depositor dated                  , 19  (the 'Prospectus')  and
purchasers  are urged to read both this Prospectus Supplement and the Prospectus
in full. Sales  of the Offered  Certificates may not  be consummated unless  the
purchaser has received both this Prospectus Supplement and the Prospectus.
 
     UNTIL NINETY DAYS AFTER THE DATE OF THIS PROSPECTUS SUPPLEMENT, ALL DEALERS
EFFECTING TRANSACTIONS IN THE OFFERED CERTIFICATES, WHETHER OR NOT PARTICIPATING
IN THIS DISTRIBUTION, MAY BE REQUIRED TO DELIVER A PROSPECTUS SUPPLEMENT AND THE
PROSPECTUS.  THIS  IS IN  ADDITION TO  THE  OBLIGATION OF  DEALERS TO  DELIVER A
PROSPECTUS SUPPLEMENT AND THE  PROSPECTUS WHEN ACTING  AS UNDERWRITERS AND  WITH
RESPECT TO THEIR UNSOLD ALLOTMENTS OR SUBSCRIPTIONS.
 
     ['s' Registered service mark of Countrywide Credit Industries, Inc. and its
affiliates.]
 
                                      S-2





<PAGE>
<PAGE>
                                SUMMARY OF TERMS
 
     This  Summary of  Terms is  qualified in its  entirety by  reference to the
detailed information appearing  elsewhere in this  Prospectus Supplement and  in
the  accompanying Prospectus. Certain capitalized terms  used in this Summary of
Terms are defined elsewhere in this Prospectus Supplement or in the Prospectus.
 
<TABLE>
<S>                                      <C>
Title of Certificates..................  Mortgage Pass-Through Certificates, Series 19  - (the 'Certificates').
 
Offered Certificates...................  Class A- , Class    Class  PO, Class X,  Class A-R, Class  B- , and  Class
                                         Certificates.  Only  the  Offered  Certificates  are  offered  hereby. The
                                         aggregate initial Class Certificate Balances  of the Certificates will  be
                                         subject  to a permitted  variance in the  aggregate of plus  or minus 10%.
                                         Variances in the Class Certificate Balances may result in variances in the
                                         Notional Amount of the Class of Notional Amount Certificates.
 
                                         The Notional Amount of the Class X Certificates for any Distribution  Date
                                         will  be equal to  the aggregate of  the Stated Principal  Balances of the
                                         Non-Discount Mortgage Loans  with respect to  such Distribution Date.  The
                                         initial  Notional Amount of the Class X  Certificates will be equal to the
                                         aggregate of the  Stated Principal Balances  of the Non-Discount  Mortgage
                                         Loans as of the Cut-off Date.
 
Certificates other than the Offered
  Certificates.........................  In  addition  to  the  Offered  Certificates,  the  following  Classes  of
                                         Certificates will be  issued in  the indicated  approximate initial  Class
                                         Certificate  Balances and will bear interest at the indicated Pass-Through
                                         Rates, but are not offered hereby:
</TABLE>
 
<TABLE>
<CAPTION>
                                              INITIAL CLASS
                                               CERTIFICATE     PASS-THROUGH
                                                 BALANCE           RATE
                                              -------------    ------------
 
<S>                                           <C>              <C>
Class    (1)...............................    $                      %
 
Class    (1)...............................    $                      %
 
Class    (1)...............................    $                      %
</TABLE>
 
<TABLE>
<S>                                      <C>
                                         ------------------------
                                         (1) The Class    , Class    and Class    Certificates will provide limited
                                         credit support  to  the Senior  Certificates  and the  other  Subordinated
                                         Certificates, as described herein.
                                         Any  information contained  herein with respect  to the  Class     , Class
                                         and  Class        Certificates  is  provided  only  to  permit  a   better
                                         understanding of the Offered Certificates.
 
Designations
 
  Regular Certificates.................  All Classes of Certificates other than the Class A-R Certificates.
 
  Residual Certificates................  Class A-R Certificates.
 
  Senior Certificates..................  Class A- , Class     , Class PO, Class X and Class A-R Certificates.
 
  Subordinated Certificates............  Class B- , Class    , and Class    Certificates.
 
  Principal Only Certificates..........  Class PO Certificates.
 
  Interest Only Certificates...........  Class X Certificates.
 
  Notional Amount Certificates.........  Class X Certificates.
 
  Fixed Rate Certificates..............  All  Classes  of  Certificates  other  than  the  Class  PO  and  Class  X
                                         Certificates.
 
  Variable Rate Certificates...........  Class X Certificates.
</TABLE>
 
                                      S-3
 

<PAGE>
<PAGE>
 
<TABLE>
<S>                                      <C>
  Physical Certificates................  Class PO,  Class  X  and  Class  A-R  Certificates  and  the  Subordinated
                                         Certificates.
 
  Book-Entry Certificates..............  All Classes of Certificates other than the Physical Certificates.
 
Trust Fund.............................  The  Certificates will represent the  entire beneficial ownership interest
                                         in the Trust Fund, which will consist primarily of the Mortgage Pool.
 
Pooling and Servicing
  Agreement............................  The Certificates  will  be issued  pursuant  to a  Pooling  and  Servicing
                                         Agreement  dated as  of               , 19   (the  'Agreement'), among the
                                         Depositor, the Seller, the Master Servicer and the Trustee.
 
Depositor..............................  CWMBS, Inc.  (the  'Depositor'),  a Delaware  corporation  and  a  limited
                                         purpose finance subsidiary of Countrywide Credit Industries, Inc. See 'The
                                         Depositor' in the Prospectus.
 
Seller and Master Servicer.............  [Countrywide  Home Loans, Inc. ('Countrywide'] or the 'Seller' and, in its
                                         capacity as master servicer of the Mortgage Loans, the 'Master Servicer').
                                         See 'Servicing  of Mortgage  Loans  -- The  Master Servicer'  herein.  The
                                         Mortgage  Loans were  originated or acquired  in the normal  course of its
                                         business by  the  Seller  and will  be  acquired  by the  Depositor  in  a
                                         privately  negotiated transaction. The Master Servicer will be responsible
                                         for the  servicing of  the  Mortgage Loans  and  will receive  the  Master
                                         Servicing   Fee  from  interest  collected  on  the  Mortgage  Loans.  See
                                         'Servicing of  Mortgage Loans  -- Servicing  Compensation and  Payment  of
                                         Expenses' herein.
 
Trustee................................  The  Bank of New York,  a banking corporation organized  under the laws of
                                         the State of New York (the 'Trustee').
 
Cut-off Date...........................  , 19  .
 
Closing Date...........................  On or about           , 19  .
 
Determination Date.....................  The       day of  each month or, if  such day is not  a business day,  the
                                         preceding business day; provided that the Determination Date in each month
                                         will be at least two business days prior to the related Distribution Date.
 
Mortgage Loans.........................  The  Mortgage  Pool  will  consist  primarily  of      -year  conventional
                                         fixed-rate mortgage loans secured  by first liens  on one- to  four-family
                                         residential  properties. Distributions  of principal  and interest  on the
                                         Certificates will be  based solely  on payments received  on the  Mortgage
                                         Loans, as described herein. See 'The Mortgage Pool' herein.
 
Distribution Date......................  The      day of  each month or, if such day  is not a business day, on the
                                         first business day  thereafter, commencing  in              19   (each,  a
                                         'Distribution Date'). Distributions on each Distribution Date will be made
                                         to Certificateholders of record as of the related Record Date, except that
                                         the  final  distribution  on  the  Certificates  will  be  made  only upon
                                         presentment and  surrender  of the  Certificates  at the  Corporate  Trust
                                         Office of the Trustee.
 
Record Date............................  The  Record Date for each Distribution Date  will be the last business day
                                         of the month preceding the month of such Distribution Date.
 
Priority of Distributions..............  Distributions will be made on each Distribution Date from Available  Funds
                                         in  the  following order  of priority:  (i) to  interest on  each interest
                                         bearing Class of Senior Certificates; (ii) to principal on the Classes  of
                                         Senior  Certificates then entitled to  receive distributions of principal,
                                         in the  order  and  subject  to the  priorities  set  forth  herein  under
                                         'Description  of  the  Certificates  -- Principal,'  in  each  case  in an
                                         aggregate amount up to the maximum amount
</TABLE>
 
                                      S-4
 

<PAGE>
<PAGE>
 
<TABLE>
<S>                                      <C>
                                         of principal to be distributed on such Classes on such Distribution  Date;
                                         (iii)  to  any Class  PO Deferred  Amounts  with respect  to the  Class PO
                                         Certificates, but only from amounts that would otherwise be  distributable
                                         on  such Distribution Date as  principal of the Subordinated Certificates;
                                         and (iv) to interest on and  then principal of each Class of  Subordinated
                                         Certificates,   in  the  order  of  their  numerical  Class  designations,
                                         beginning with  the Class     Certificates, in  each case  subject to  the
                                         limitations    set    forth    herein    under    'Description    of   the
                                         Certificates -- Principal.'
 
                                         Under certain circumstances described herein, distributions from Available
                                         Funds for  a  Distribution  Date  that would  otherwise  be  made  on  the
                                         Subordinated  Certificates  may  be  distributed  instead  on  the  Senior
                                         Certificates. See  'Description  of  the  Certificates  --  Allocation  of
                                         Losses' herein.
 
Distributions of Interest..............  To the extent funds are available therefor, each interest bearing Class of
                                         Certificates  will be  entitled to receive  interest in the  amount of the
                                         Interest Distribution Amount for such Class. The Class PO Certificates are
                                         Principal Only Certificates and will  not bear interest. See  'Description
                                         of the Certificates -- Interest' herein.
 
  A. Interest Distribution Amount......  For  each interest bearing  Class of Certificates,  the amount of interest
                                         accrued during  the  related Interest  Accrual  Period at  the  applicable
                                         Pass-Through  Rate on  the related  Class Certificate  Balance or Notional
                                         Amount, as the case may be.
 
  B. Pass-Through Rate.................  The  Pass-Through  Rate  for  each  interest  bearing  Class  of   Offered
                                         Certificates  for each Distribution Date will be as set forth or described
                                         on the cover page hereof.
 
                                         The Pass-Through Rate for  the Class X  Certificates for any  Distribution
                                         Date  will be equal to  the excess of (a) the  weighted average of the Net
                                         Mortgage Rates of  the Non-Discount  Mortgage Loans  over (b)       %  per
                                         annum.  The Pass-Through Rate  for the Class X  Certificates for the first
                                         Distribution Date is expected to be approximately       % per annum.
 
                                         With respect to each Distribution Date, the 'Interest Accrual Period'  for
                                         each  interest bearing  Class of Certificates  will be  the calendar month
                                         preceding the month of such Distribution Date.
 
Distributions of Principal.............  On each Distribution  Date, to  the extent funds  are available  therefor,
                                         principal  distributions in reduction of the Class Certificate Balances of
                                         each Class of Certificates (other  than the Notional Amount  Certificates)
                                         will  be made in the order and  subject to the priorities set forth herein
                                         under 'Description  of  the Certificates  --  Principal' in  an  aggregate
                                         amount  equal to  such Class'  allocable portion  of the  Senior Principal
                                         Distribution Amount, the  Class PO  Principal Distribution  Amount or  the
                                         Subordinated  Principal Distribution  Amount, as  applicable. The Notional
                                         Amount Certificates do not have principal balances and are not entitled to
                                         any distributions  in respect  of  principal of  the Mortgage  Loans.  See
                                         'Description of the Certificates -- Principal' herein.
 
Credit Enhancement -- General..........  Credit  enhancement for  the Senior Certificates  will be  provided by the
                                         Subordinated  Certificates  and  credit  enhancement  for  each  Class  of
                                         Subordinated  Certificates will  be provided  by the  Class or  Classes of
                                         Subordinated Certificates  with higher  numerical Class  designations,  as
                                         described  below. The aggregate of  the initial Class Certificate Balances
                                         of the Class    , Class     and Class    Certificates, which are the  only
                                         Certificates  supporting  the Class      Certificates,  is expected  to be
                                         approximately $          .
</TABLE>
 
                                      S-5
 

<PAGE>
<PAGE>
 
<TABLE>
<S>                                      <C>
Subordination..........................  The  rights  of  holders  of  the  Subordinated  Certificates  to  receive
                                         distributions with respect to the Mortgage Loans in the Trust Fund will be
                                         subordinated to such rights of holders of the Senior Certificates, and the
                                         rights  of the holders  of each Class  of Subordinated Certificates (other
                                         than the Class      Certificates) to  receive such  distributions will  be
                                         further   subordinated  to  such  rights  of   the  Class  or  Classes  of
                                         Subordinated Certificates with lower numerical Class designations, in each
                                         case only to the extent described herein.
 
                                         The  subordination  of  the   Subordinated  Certificates  to  the   Senior
                                         Certificates,  and  the  further  subordination  within  the  Subordinated
                                         Certificates, is intended to increase the likelihood of timely receipt  by
                                         the  holders of Certificates with higher  relative payment priority of the
                                         maximum amount to which they are entitled on any Distribution Date and  to
                                         provide  such holders protection  against losses on  the Mortgage Loans to
                                         the extent described  herein. The Subordinated  Certificates also  provide
                                         protection,  to a lesser extent, against Special Hazard Losses, Bankruptcy
                                         Losses and Fraud Losses. However,  in certain circumstances the amount  of
                                         available  subordination (including the limited subordination provided for
                                         certain types of losses) may be exhausted and shortfalls in  distributions
                                         on  the Certificates could result. Holders of the Senior Certificates will
                                         bear their  proportionate share  of any  losses realized  on the  Mortgage
                                         Loans in excess of the available subordination amount. See 'Description of
                                         the   Certificates  --  Priority  of  Distributions  Among  Certificates,'
                                         ' -- Allocation of  Losses,' and 'Credit  Enhancement -- Subordination  of
                                         Certain Classes' herein.
 
Advances...............................  The  Master Servicer is obligated to  make cash advances ('Advances') with
                                         respect to  delinquent  payments  of  principal of  and  interest  on  any
                                         Mortgage  Loan  to  the  extent  described  herein.  The  Trustee  will be
                                         obligated to make  any such Advance  if the Master  Servicer fails in  its
                                         obligation  to  do  so,  to  the extent  provided  in  the  Agreement. See
                                         'Servicing of Mortgage Loans -- Advances' herein.
 
Prepayment Considerations and Risks;
  Reinvestment Risk....................  The rate of principal payments on the Offered Certificates, the  aggregate
                                         amount  of  distributions on  the Offered  Certificates  and the  yield to
                                         maturity of  the Offered  Certificates will  be related  to the  rate  and
                                         timing of payments of principal on the Mortgage Loans.
 
                                         Since  the rate of payment of principal  on the Mortgage Loans will depend
                                         on future events and a variety of factors, no assurance can be given as to
                                         such rate or the  rate of principal prepayments.  The extent to which  the
                                         yield  to maturity of  a Class of  Offered Certificates may  vary from the
                                         anticipated yield may depend upon the degree to which it is purchased at a
                                         discount or  premium, and  the  degree to  which  the timing  of  payments
                                         thereon  is sensitive  to prepayments,  liquidations and  purchases of the
                                         Mortgage Loans. Further, an investor should consider the risk that, in the
                                         case of the Principal Only Certificates and any other Offered  Certificate
                                         purchased  at  a discount,  a slower  than  anticipated rate  of principal
                                         payments (including prepayments) on the Mortgage Loans could result in  an
                                         actual  yield to  such investor that  is lower than  the anticipated yield
                                         and, in the case of the  Interest Only Certificates and any other  Offered
                                         Certificate  purchased at  a premium,  a faster  than anticipated  rate of
                                         principal payments could result in an  actual yield to such investor  that
                                         is  lower  than  the anticipated  yield.  Investors in  the  Interest Only
                                         Certificates should  carefully consider  the  risk that  a rapid  rate  of
                                         principal payments on the
</TABLE>
 
                                      S-6
 

<PAGE>
<PAGE>
 
<TABLE>
<S>                                      <C>
                                         Mortgage  Loans could result  in the failure of  such investors to recover
                                         their initial investments.
 
                                         Because the Mortgage Loans may be prepaid at any time, it is not  possible
                                         to  predict the  rate at which  distributions of principal  of the Offered
                                         Certificates will be received. Since prevailing interest rates are subject
                                         to fluctuation, there can  be no assurance that  investors in the  Offered
                                         Certificates  will be able to reinvest the distributions thereon at yields
                                         equaling or  exceeding the  yields  on such  Offered Certificates.  It  is
                                         possible  that yields on any such reinvestments  will be lower, and may be
                                         significantly lower,  than the  yields on  the Offered  Certificates.  See
                                         'Yield, Prepayment and Maturity Considerations' herein.
 
Optional Termination...................  On  any Distribution Date on which the Pool Principal Balance is less than
                                         10% of the Cut-off Date Pool  Principal Balance, the Master Servicer  will
                                         have  the option  to purchase,  in whole, the  Mortgage Loans  and the REO
                                         Property, if any,  remaining in the  Trust Fund. See  'Description of  the
                                         Certificates -- Optional Termination' herein.
 
Federal Income Tax Considerations......  For  federal  income  tax  purposes,  the  Trust  Fund  will  include  two
                                         segregated asset pools, with  respect to which elections  will be made  to
                                         treat  each  as  a  separate  'real  estate  mortgage  investment conduit'
                                         ('REMIC'). The Regular Certificates will constitute 'regular interests' in
                                         the Master REMIC. The Class A-R Certificates will represent the beneficial
                                         ownership of the sole class of 'residual interest' in the Master REMIC and
                                         the sole class of  residual interest in the  Subsidiary REMIC and will  be
                                         the class of Residual Certificates, as described in the Prospectus.
 
                                         The  Interest Only Certificates and  the Principal Only Certificates will,
                                         and certain  other Classes  of Offered  Certificates may,  be issued  with
                                         original  issue  discount for  federal income  tax purposes.  See 'Certain
                                         Federal Income Tax Consequences' herein and in the Prospectus.
 
ERISA Considerations...................  The acquisition of an Offered Certificate  by a pension or other  employee
                                         benefit plan (a 'Plan') subject to the Employee Retirement Income Security
                                         Act  of 1974, as amended ('ERISA'), could,  in some instances, result in a
                                         prohibited transaction or other violation of the fiduciary  responsibility
                                         provisions of ERISA and Section 4975 of the Internal Revenue Code of 1986,
                                         as amended (the 'Code').
 
                                         Subject  to  the  considerations  and  conditions  described  under 'ERISA
                                         Considerations' herein, it is expected that the Senior Certificates (other
                                         than the Class PO, Class X and Class A-R Certificates) may be purchased by
                                         a Plan.
 
                                         Any  Plan   fiduciary  considering   whether  to   purchase  any   Offered
                                         Certificates on behalf of a Plan should consult with its counsel regarding
                                         the  applicability of  the provisions  of ERISA  and the  Code. See 'ERISA
                                         Considerations' herein.
 
Legal Investment.......................  The Senior Certificates  and the  Class      Certificates will  constitute
                                         'mortgage  related  securities'  for purposes  of  the  Secondary Mortgage
                                         Market Enhancement Act of 1984 ('SMMEA') so long as they are rated in  one
                                         of the two highest rating categories by at least one nationally recognized
                                         statistical  rating organization and,  as such, are  legal investments for
                                         certain entities to the extent provided for in SMMEA.
 
                                         It is anticipated that the Class    and Class    Certificates will not  be
                                         rated  in  one  of  the  two highest  rating  categories  by  a nationally
                                         recognized statistical rating organization and, therefore,
</TABLE>
 
                                      S-7
 

<PAGE>
<PAGE>
 
<TABLE>
<S>                                      <C>
                                         will not constitute 'mortgage related securities' for purposes of SMMEA.
 
                                         Institutions whose investment activities are subject to review by  federal
                                         or  state regulatory authorities should consult  with their counsel or the
                                         applicable authorities to determine whether  an investment in the  Offered
                                         Certificates  complies  with applicable  guidelines, policy  statements or
                                         restrictions. See 'Legal Investment' in the Prospectus.
 
Ratings................................  It is a condition to the issuance of the Senior Certificates that they  be
                                         rated        by                                    ('      ') and       by
                                                             ('       '  and, together  with         , the  'Rating
                                         Agencies'). See 'Ratings' herein. It is a condition to the issuance of the
                                         Class     , Class    and Class    Certificates that they be rated at least
                                             ,   and        , respectively, by       .  The ratings of the  Offered
                                         Certificates  of any Class should  be evaluated independently from similar
                                         ratings on other types of securities. A rating is not a recommendation  to
                                         buy,  sell or hold securities and may be subject to revision or withdrawal
                                         at any time by either of the Rating Agencies. See 'Ratings' herein.
</TABLE>
 
                                      S-8




<PAGE>
<PAGE>
                               THE MORTGAGE POOL
 
GENERAL
 
     The  Depositor will purchase the Mortgage Loans from [Countrywide] pursuant
to the  Pooling and  Servicing Agreement  dated  as of  the Cut-off  Date  among
[Countrywide], as Seller and Master Servicer, the Depositor and the Trustee (the
'Agreement') and will cause the Mortgage Loans to be assigned to the Trustee for
the benefit of the holders of the Certificates (the 'Certificateholders').
 
     Under   the  Agreement,  the  Seller  will  make  certain  representations,
warranties and covenants to the Depositor  relating to, among other things,  the
due execution and enforceability of the Agreement and certain characteristics of
the  Mortgage  Loans  and,  subject to  the  limitations  described  below under
' --  Assignment of  the Mortgage  Loans,' will  be obligated  to repurchase  or
substitute  a similar  mortgage loan  for any  Mortgage Loan  as to  which there
exists deficient  documentation  or  an  uncured material  breach  of  any  such
representation,  warranty or covenant. The Seller  will represent and warrant to
the Depositor in the Agreement that the Mortgage Loans were selected from  among
the  outstanding one- to four-family mortgage loans in the Seller's portfolio as
to which the representations  and warranties set forth  in the Agreement can  be
made  and that  such selection  was not  made in  a manner  that would adversely
affect the interests of  the Certificateholders. See  'Mortgage Loan Program  --
Representations by Sellers; Repurchases' in the Prospectus. Under the Agreement,
the  Depositor will  assign all  its right,  title and  interest in  and to such
representations, warranties  and covenants  (including the  Seller's  repurchase
obligation)  to the Trustee for the benefit of Certificateholders. The Depositor
will make no representations  or warranties with respect  to the Mortgage  Loans
and  will have  no obligation  to repurchase  or substitute  Mortgage Loans with
deficient documentation  or  which  are otherwise  defective.  [Countrywide]  is
selling  the Mortgage  Loans without recourse  and will have  no obligation with
respect to the Certificates in its capacity as Seller other than the  repurchase
obligation   described  above.  The  obligations  of  [Countrywide],  as  Master
Servicer, with respect to the Certificates are limited to the Master  Servicer's
contractual servicing obligations under the Agreement.
 
     Certain  information  with respect  to the  Mortgage  Loans expected  to be
included in the Mortgage  Pool is set  forth below. Prior  to the Closing  Date,
Mortgage  Loans may be removed  from the Mortgage Pool  and other Mortgage Loans
may be substituted  therefor. The  Depositor believes that  the information  set
forth  herein  with respect  to the  Mortgage Pool  as presently  constituted is
representative of  the  characteristics of  the  Mortgage  Pool as  it  will  be
constituted  at  the  Closing  Date,  although  certain  characteristics  of the
Mortgage Loans  in  the Mortgage  Pool  may vary.  Unless  otherwise  indicated,
information  presented herein  expressed as  a percentage  (other than  rates of
interest) are approximate percentages based on the Stated Principal Balances  of
the Mortgage Loans as of the Cut-off Date.
 
     As  of the Cut-off Date, the aggregate  of the Stated Principal Balances of
the Mortgage Loans is expected to be  approximately $             (the  'Cut-off
Date  Pool Principal Balance'). The Mortgage  Loans provide for the amortization
of the amount financed  over a series of  substantially equal monthly  payments.
All  the Mortgage  Loans provide for  payments due as  of the first  day of each
month (the 'Due Date'). At origination, substantially all of the Mortgage  Loans
had stated terms to maturity of 30 years. Scheduled monthly payments made by the
Mortgagors  on the Mortgage Loans ('Scheduled Payments') either earlier or later
than the scheduled Due Dates thereof  will not affect the amortization  schedule
or  the relative  application of  such payments  to principal  and interest. The
Mortgagors may prepay their Mortgage Loans at any time without penalty.
 
     Each Mortgage Loan was originated after              .
 
     The latest stated maturity date of any Mortgage Loan is               . The
earliest stated maturity date of any Mortgage Loan is                     .
 
     As of the Cut-off Date, no Mortgage Loan was delinquent more than 30 days.
 
     [No] Mortgage Loan will  be subject to a  buydown agreement. [No]  Mortgage
Loan provides for deferred interest or negative amortization.
 
     As  of the Cut-off Date,   Mortgage Loans, representing approximately     %
of the Cut-off Date Pool Principal  Balance, were originated as adjustable  rate
mortgage  loans  but  converted to  fixed  rate  Mortgage Loans  prior  to their
inclusion in the Mortgage Pool.
 
                                      S-9
 

<PAGE>
<PAGE>
     No Mortgage Loan had a Loan-to-Value Ratio at origination of more than 95%.
Each Mortgage Loan with a Loan-to-Value Ratio at origination of greater than 80%
is covered by a primary mortgage guaranty insurance policy issued by a  mortgage
insurance  company  acceptable  to  the  Federal  National  Mortgage Association
('FNMA') or the Federal Home  Loan Mortgage Corporation ('FHLMC'), which  policy
provides  coverage in an  amount equal to  the excess of  the original principal
balance of  the related  Mortgage Loan  over 75%  of the  value of  the  related
Mortgaged  Property,  plus  accrued  interest  thereon  and  related foreclosure
expenses. With  respect  to     Mortgage  Loans  with  Loan-to-Value  Ratios  at
origination  of greater than 80%, the lender (rather than the borrower) acquired
the primary  mortgage guaranty  insurance and  charged the  related borrower  an
interest  premium equal to  the lender's cost of  obtaining such insurance (such
Mortgage Loans, the  'Lender PMI Mortgage  Loans'). Except with  respect to  the
Lender  PMI Mortgage Loans,  no such primary  mortgage guaranty insurance policy
will be required with respect to any such Mortgage Loan after the date on  which
the related Loan-to-Value Ratio is 80% or less or, based on a new appraisal, the
principal  balance  of such  Mortgage Loan  represents  80% or  less of  the new
appraised value. With  respect to  the Lender  PMI Mortgage  Loans, the  primary
mortgage  guaranty  insurance policy  will be  maintained for  the life  of such
Mortgage Loans.
 
     The 'Loan-to-Value  Ratio'  of a  Mortgage  Loan at  any  given time  is  a
fraction,  expressed as  a percentage, the  numerator of which  is the principal
balance of  the related  Mortgage Loan  at  the date  of determination  and  the
denominator of which is (a) in the case of a purchase, the lesser of the selling
price  of the Mortgaged Property or its appraised  value at the time of sale, or
[(b) in the case of a refinance,  the appraised value of the Mortgaged  Property
at  the  time  of  such  refinance,  except  in  the  case  of  a  Mortgage Loan
underwritten pursuant  to  [Countrywide's] Streamlined  Refinance  Documentation
Program  (the  'Streamlined Documentation  Program')  as described  herein under
' -- Underwriting Standards.' With respect to Mortgage Loans originated pursuant
to the Streamlined Documentation Program (a)  if the loan-to-value ratio at  the
time  of the origination of the mortgage  loan being refinanced was 60% or less,
the 'Loan-to-Value  Ratio' will  be the  ratio of  the principal  amount of  the
Mortgage  Loan outstanding at the date of determination divided by the appraised
value of the related mortgaged  property at the time  of the origination of  the
mortgage  loan being refinanced or (b) if the loan-to-value ratio at the time of
the origination of the mortgage loan being refinanced was greater than 60%, then
the 'Loan-to-Value  Ratio' will  be the  ratio of  the principal  amount of  the
Mortgage  Loan outstanding at the date of determination divided by the appraised
value as determined  by an  appraisal at  the time  of the  origination of  such
Mortgage  Loan.] See  ' -- Underwriting  Standards' herein. No  assurance can be
given that the value of  any Mortgaged Property has  remained or will remain  at
the  level that  existed on  the appraisal  or sales  date. If  residential real
estate values  generally  or  in  a  particular  geographic  area  decline,  the
Loan-to-Value  Ratios  might  not  be  a  reliable  indicator  of  the  rates of
delinquencies, foreclosures and  losses that  could occur with  respect to  such
Mortgage Loans.
 
     The following information sets forth in tabular format certain information,
as  of the Cut-off  Date, as to the  Mortgage Loans. Other  than with respect to
rates of  interest, percentages  (approximate) are  stated by  Stated  Principal
Balance  of the Mortgage Loans  as of the Cut-off Date  and have been rounded in
order to total 100%.
 
                                      S-10
 

<PAGE>
<PAGE>

<TABLE>
<CAPTION>
                      MORTGAGE RATES(1)
- --------------------------------------------------------------
                                      AGGREGATE
                        NUMBER OF     PRINCIPAL     PERCENT OF
                        MORTGAGE       BALANCE       MORTGAGE
  MORTGAGE RATES (%)      LOANS      OUTSTANDING       POOL
- --------------------------------------------------------------
<S>                     <C>        <C>              <C>
 6.250.................            $                       %
 6.750.................
 6.875.................
 7.000.................
 7.125.................
 7.250.................
 7.375.................
 7.500.................
 7.625.................
 7.750.................
 7.875.................
 8.000.................
 8.125.................
 8.250.................
 8.375.................
 8.500.................
 8.625.................
 8.750.................
 8.875.................
 9.000.................
 9.125.................
 9.250.................
 9.375.................
 9.500.................
 9.875.................
10.000.................
                            --     ---------------  ----------
Totals.................                               100.00%
                            --     ---------------  ----------
                            --     ---------------  ----------
</TABLE>
 
- ------------------------
 
(1) The Lender PMI Mortgage Loans are  shown at  the Mortgage  Rates net  of the
    interest  premium charged by the related  lenders.  As  of the Cut-off Date,
    the weighted average Mortgage Rate of the Mortgage Loans (as so adjusted) is
    expected to be  approximately     %. Without  such adjustment,  the weighted
    average Mortgage Rate of the Mortgage  Loans is expected to be approximately
         % per annum.

<TABLE>
<CAPTION>
                ORIGINAL LOAN-TO-VALUE RATIOS(1)
- ----------------------------------------------------------------
                                       AGGREGATE
                        NUMBER OF      PRINCIPAL      PERCENT OF
ORIGINAL LOAN-TO-VALUE  MORTGAGE        BALANCE        MORTGAGE
      RATIOS (%)          LOANS       OUTSTANDING        POOL
- ----------------------------------------------------------------
<S>                     <C>         <C>               <C>
50.00 and below.......              $                        %
50.01 to 55.00........
55.01 to 60.00........
60.01 to 65.00........
65.01 to 70.00........
70.01 to 75.00........
75.01 to 80.00........
80.01 to 85.00........
85.01 to 90.00........
90.01 to 95.00........
                            --      ---------------   ----------
Totals................                                  100.00%
                            --      ---------------   ----------
                            --      ---------------   ----------
</TABLE>
 
- ------------------------
 
(1) The   weighted    average    original    Loan-to-Value    Ratio    of    the
    Mortgage Loans is expected to be approximately     %.
 
<TABLE>
<CAPTION>
         CURRENT MORTGAGE LOAN PRINCIPAL BALANCES(1)
- --------------------------------------------------------------
                                      AGGREGATE
                        NUMBER OF     PRINCIPAL     PERCENT OF
   CURRENT MORTGAGE     MORTGAGE       BALANCE       MORTGAGE
     LOAN AMOUNTS         LOANS      OUTSTANDING       POOL
- --------------------------------------------------------------
<S>                     <C>        <C>              <C>
$     0 - $  50,000....            $                       %
$ 50,001 - $ 100,000...
$100,001 - $ 150,000...
$150,001 - $ 200,000...
$200,001 - $ 250,000...
$250,001 - $ 300,000...
$300,001 - $ 350,000...
$350,001 - $ 400,000...
$400,001 - $ 450,000...
$450,001 - $ 500,000...
$500,001 - $ 550,000...
$550,001 - $ 600,000...
$600,001 - $ 650,000...
$650,001 - $ 750,000...
$750,001 - $1,000,000...
                            --     ---------------  ----------
Totals.................            $                  100.00%
                            --     ---------------  ----------
                            --     ---------------  ----------
</TABLE>
 
- ------------------------
 
(1) As    of   the   Cut-off   Date,   the   average   current   Mortgage   Loan
    principal balance is expected to be approximately $        .

<TABLE>
<CAPTION>
            DOCUMENTATION PROGRAM FOR MORTGAGE LOANS
- ----------------------------------------------------------------
                                       AGGREGATE
                        NUMBER OF      PRINCIPAL      PERCENT OF
                        MORTGAGE        BALANCE        MORTGAGE
   TYPE OF PROGRAM        LOANS       OUTSTANDING        POOL
- ----------------------------------------------------------------
<S>                     <C>         <C>               <C>
Full..................              $                        %
Alternative...........
Reduced...............
Streamlined...........
                            --      ---------------   ----------
Totals................              $                   100.00%
                            --      ---------------   ----------
                            --      ---------------   ----------
</TABLE>

<TABLE>
<CAPTION>
                 TYPES OF MORTGAGED PROPERTIES
- ---------------------------------------------------------------
                                      AGGREGATE
                        NUMBER OF     PRINCIPAL      PERCENT OF
                        MORTGAGE       BALANCE        MORTGAGE
     PROPERTY TYPE        LOANS      OUTSTANDING        POOL
- ---------------------------------------------------------------
<S>                     <C>        <C>               <C>
Single Family...........           $                        %
Condominium.............
Two- to Four- Family....
Planned Unit
 Development............
                            --     ---------------   ----------
Totals..................           $                   100.00%
                            --     ---------------   ----------
                            --     ---------------   ----------
</TABLE>

<TABLE>
<CAPTION>
                                OCCUPANCY TYPES(1)
- ----------------------------------------------------------------
                                       AGGREGATE
                        NUMBER OF      PRINCIPAL      PERCENT OF
                        MORTGAGE        BALANCE        MORTGAGE
    OCCUPANCY TYPE        LOANS       OUTSTANDING        POOL
- ----------------------------------------------------------------
<S>                     <C>         <C>               <C>
Primary Residence.....              $                        %
Investor Property.....
Second Residence......
                            --      ---------------   ----------
Totals................              $                   100.00%
                            --      ---------------   ----------
                            --      ---------------   ----------
</TABLE>
 
- ------------------------
 
(1) Based   upon   representations   of   the   related   mortgagors   at    the
    time of origination.
 
                                      S-11
 

<PAGE>
<PAGE>

<TABLE>
<CAPTION>
         STATE DISTRIBUTION OF MORTGAGED PROPERTIES(1)
- ----------------------------------------------------------------
                                       AGGREGATE
                        NUMBER OF      PRINCIPAL      PERCENT OF
                        MORTGAGE        BALANCE        MORTGAGE
        STATE             LOANS       OUTSTANDING        POOL
- ----------------------------------------------------------------
<S>                     <C>         <C>               <C>
Arizona...............              $                        %
California............
Colorado..............
Florida...............
Georgia...............
Hawaii................
Illinois..............
Maryland..............
Massachusetts.........
New Jersey............
New York..............
Pennsylvania..........
Texas.................
Utah..................
Washington............
Other (less than
 2%)..................
                            --      ---------------   ----------
Totals................              $                   100.00%
                            --      ---------------   ----------
                            --      ---------------   ----------
</TABLE>
 
- ------------------------
 
(1) Other includes  other states  with  under [2]% concentrations  individually.
    No more  than approximately     %  of the Mortgage  Loans will be secured by
    Mortgaged Properties located in any one postal zip code area.

<TABLE>
<CAPTION>
                  PURPOSE OF MORTGAGE LOANS
- ---------------------------------------------------------------
                                      AGGREGATE
                       NUMBER OF      PRINCIPAL      PERCENT OF
                       MORTGAGE        BALANCE        MORTGAGE
     LOAN PURPOSE        LOANS       OUTSTANDING        POOL
- ---------------------------------------------------------------
<S>                    <C>         <C>               <C>
Purchase...............            $                        %
Refinance
 (rate/term)...........
Refinance (cash out)...
                           --      ---------------   ----------
Totals.................            $                   100.00%
                           --      ---------------   ----------
                           --      ---------------   ----------
</TABLE>
 

<TABLE>
<CAPTION>
                 REMAINING TERMS TO MATURITY(1)
- ----------------------------------------------------------------
                                       AGGREGATE
                        NUMBER OF      PRINCIPAL      PERCENT OF
  REMAINING TERM TO     MORTGAGE        BALANCE        MORTGAGE
  MATURITY (MONTHS)       LOANS       OUTSTANDING        POOL
- ----------------------------------------------------------------
<S>                     <C>         <C>               <C>
360...................              $                        %
359...................
358...................
357...................
356...................
355...................
354...................
353...................
352...................
351...................
349...................
348...................
347...................
345...................
344...................
343...................
342...................
341...................
338...................
335...................
334...................
333...................
332...................
328...................
326...................
325...................
321...................
320...................
319...................
318...................
314...................
297...................
293...................
259...................
240...................
238...................
237...................
                            --      ---------------   ----------
Totals................              $                   100.00%
                            --      ---------------   ----------
                            --      ---------------   ----------
</TABLE>
 
- ------------------------
 
(1) As    of    the    Cut-off   Date,    the    weighted    average   remaining
    term to maturity of the  Mortgage Loans is expected to  be approximately
    months.
 
                                      S-12
 

<PAGE>
<PAGE>
ASSIGNMENT OF THE MORTGAGE LOANS
 
     Pursuant  to the  Agreement, the Depositor  on the Closing  Date will sell,
transfer, assign, set over and otherwise convey without recourse to the  Trustee
in trust for the benefit of the Certificateholders all right, title and interest
of  the Depositor in and to each Mortgage Loan and all right, title and interest
in and to all other assets included  in the Trust Fund, including all  principal
and  interest received on  or with respect  to the Mortgage  Loans, exclusive of
principal and interest due on or prior to the Cut-off Date.
 
     In connection with such transfer and assignment, the Depositor will deliver
or cause to be delivered to the  Trustee, or a custodian for the Trustee,  among
other  things,  the  original promissory  note  (the 'Mortgage  Note')  (and any
modification or  amendment  thereto) endorsed  in  blank without  recourse,  the
original instrument creating a first lien on the related Mortgaged Property (the
'Mortgage')  with  evidence of  recording  indicated thereon,  an  assignment in
recordable form of the  Mortgage, the title policy  with respect to the  related
Mortgaged  Property and, if applicable,  all recorded intervening assignments of
the Mortgage and any riders or modifications to such Mortgage Note and  Mortgage
(except  for any such  documents not returned from  the public recording office,
which will be delivered to the Trustee as  soon as the same is available to  the
Depositor)  (collectively,  the 'Mortgage  File').  Assignments of  the Mortgage
Loans to the Trustee (or its nominee) will be recorded in the appropriate public
office for real property records, except  in states such as California where  in
the  opinion of counsel such recording is  not required to protect the Trustee's
interests in the Mortgage Loan against the claim of any subsequent transferee or
any successor to or creditor of the Depositor or the Seller.
 
     The Trustee will review  each Mortgage File within  90 days of the  Closing
Date  (or promptly after the  Trustee's receipt of any  document permitted to be
delivered after the  Closing Date) and  if any  document in a  Mortgage File  is
found  to be missing or defective in a  material respect and the Seller does not
cure such defect within 90  days of notice thereof  from the Trustee (or  within
such  longer period not to exceed 720 days after the Closing Date as provided in
the Agreement in  the case  of missing documents  not returned  from the  public
recording  office),  the  Seller will  be  obligated to  repurchase  the related
Mortgage Loan from the Trust Fund.  Rather than repurchase the Mortgage Loan  as
provided  above, the Seller  may remove such Mortgage  Loan (a 'Deleted Mortgage
Loan') from the Trust Fund and substitute in its place another mortgage loan  (a
'Replacement  Mortgage  Loan');  however, such  substitution  is  permitted only
within two years of the  Closing Date and may not  be made unless an opinion  of
counsel is provided to the Trustee to the effect that such substitution will not
disqualify  the REMIC or result in a  prohibited transaction tax under the Code.
Any Replacement Mortgage Loan generally will, on the date of substitution, among
other characteristics set forth in the Agreement, (i) have a principal  balance,
after  deduction of all Scheduled Payments due in the month of substitution, not
in excess of, and not more than  10% less than, the Stated Principal Balance  of
the  Deleted Mortgage Loan (the  amount of any shortfall  to be deposited by the
Seller  in  the   Certificate  Account   and  held  for   distribution  to   the
Certificateholders  on the related Distribution Date (a 'Substitution Adjustment
Amount')), (ii) have a Mortgage  Rate not lower than, and  not more than 1%  per
annum higher than, that of the Deleted Mortgage Loan, (iii) have a Loan-to-Value
Ratio  not higher than that of the  Deleted Mortgage Loan, (iv) have a remaining
term to maturity not greater than (and not more than one year less than) that of
the Deleted Mortgage Loan,  and (v) comply with  all of the representations  and
warranties set forth in the Agreement as of the date of substitution. This cure,
repurchase  or substitution obligation constitutes  the sole remedy available to
Certificateholders or the Trustee  for omission of, or  a material defect in,  a
Mortgage Loan document.
 
UNDERWRITING STANDARDS
 
     [All  mortgage loans must meet credit, appraisal and underwriting standards
acceptable to Countrywide. Such underwriting  standards are applied to  evaluate
the  prospective borrower's credit standing and  repayment ability and the value
and adequacy  of  the mortgaged  property  as collateral.  These  standards  are
applied  in accordance with  applicable federal and  state laws and regulations.
Such underwriting  procedures are  generally  consistent with  those  identified
under 'Mortgage Loan Program -- Underwriting Standards' in the Prospectus except
as otherwise provided herein.
 
     Each   prospective  mortgagor  completes   an  application  which  includes
information with respect to the applicant's assets, liabilities, income,  credit
history, employment history and other personal
 
                                      S-13
 

<PAGE>
<PAGE>
information.  In addition,  each applicant is  required to  have sufficient cash
resources to  pay the  downpayment  and closing  costs. Countrywide  requires  a
credit  report on  each applicant  from a  credit reporting  company. The report
typically contains information relating to  such matters as credit history  with
local  and national  merchants and  lenders, installment  debt payments  and any
record of defaults, bankruptcy, dispossession,  suits or judgments. All  adverse
information  in the credit report is required to be explained by the prospective
borrower to the satisfaction of  the lending officer. Self-employed  individuals
are  generally  required to  submit  their two  most  recent federal  income tax
returns. In determining  whether a prospective  borrower has sufficient  monthly
income  available (i) to meet the borrower's monthly obligations relating to the
proposed mortgage loan (including property taxes, hazard insurance premiums, and
where applicable, primary mortgage  guaranty insurance premiums and  homeowners'
association  dues) and (ii) to meet monthly housing expenses described in clause
(i) above and other  financial obligations of  the borrower (including  consumer
and  installment  debt), Countrywide  generally applies  ratios with  respect to
fixed rate mortgage loans of  up to 33% and  38%, respectively, of the  proposed
borrower's   acceptable  stable   monthly  gross   income.  Exceptions   to  the
underwriting standards described herein are made in certain circumstances  where
compensating factors are demonstrated by a prospective borrower.
 
     Except  as described  below with  respect to  its Streamlined Documentation
Program, Countrywide's  underwriting  standards  generally  allow  Loan-to-Value
Ratios  at origination of up  to 95% for mortgage  loans with original principal
balances of up to $300,000, up to 90% for mortgage loans with original principal
balances of up to $400,000, up to 80% for mortgage loans with original principal
balances of up to $500,000, up to 75% for Mortgage Loans with original principal
balances of up to $650,000, up to 70% for mortgage loans with original principal
balances of  up to  $750,000 and  up to  60% for  mortgage loans  with  original
principal balances of up to $1,000,000. Countrywide generally does not originate
cash-out  refinance mortgage loans with original principal balances in excess of
$650,000. A  refinance  mortgage loan  is  classified as  a  cash-out  refinance
mortgage  loan by Countrywide if  the borrower retains greater  than 1.0% of the
entire amount of  the proceeds  from the  refinancing of  the existing  mortgage
loan.
 
     Except  as described  below with  respect to  its Streamlined Documentation
Program, Countrywide obtains appraisals from independent appraisers or appraisal
services for  properties that  are  to secure  mortgage loans.  Such  appraisers
inspect  and appraise the subject  property and verify that  such property is in
acceptable condition. Following each appraisal, the appraiser prepares a  report
which  includes a market data analysis based on recent sales of comparable homes
in the area and, when deemed  appropriate, a replacement cost analysis based  on
the  current cost of constructing a similar home. All appraisals are required to
conform to FNMA or FHLMC appraisal  standards then in effect. Every  independent
appraisal is reviewed by a Countrywide underwriter before the loan is funded.
 
     Countrywide  requires title insurance on all  of its mortgage loans secured
by liens on  real property.  Countrywide also  requires that  fire and  extended
coverage  casualty insurance be maintained on  the secured property in an amount
at least equal to the principal balance of the related single-family loan or the
replacement cost of the property, whichever is less.
 
     Countrywide  also  originates  or  acquires  mortgage  loans  pursuant   to
alternative  sets of  underwriting criteria under  its Alternative Documentation
Loan  Program   (the   'Alternative   Documentation   Program'),   its   Reduced
Documentation  Loan  Program  (the  'Reduced  Documentation  Program')  and  its
Streamlined Documentation Program. The Alternative Documentation Program permits
a borrower to provide W-2 forms instead of tax returns covering the most  recent
two  years, permits  bank statements  in lieu  of verifications  of deposits and
permits alternative  methods  of  employment  verification.  Under  the  Reduced
Documentation   Program,  relatively   more  emphasis  is   placed  on  property
underwriting  than  on  credit  underwriting  and  certain  credit  underwriting
documentation concerning income and employment verification therefore is waived.
However,  under  the  Reduced Documentation  Program,  Countrywide  obtains from
prospective borrowers either a verification  of deposits or bank statements  for
the  most recent two-month period preceding the loan application. Mortgage loans
underwritten under the  Reduced Documentation Program  generally are limited  to
self-employed  borrowers with  credit histories that  demonstrate an established
ability  to  repay   indebtedness  in  a   timely  fashion.  Permitted   maximum
Loan-to-Value Ratios (including secondary financing) under
 
                                      S-14
 

<PAGE>
<PAGE>
the  Reduced Documentation Program, which range  up to 70%, are more restrictive
than  under  Countrywide's  standard   underwriting  criteria.  Mortgage   loans
underwritten  pursuant to  the Reduced  Documentation Program  generally must be
secured by  owner-occupied  primary residences.  The  Streamlined  Documentation
Program  allows a  borrower to refinance  an existing  Countrywide mortgage loan
provided that, among other things, such mortgage loan has not been more than  30
days  delinquent in payment  during the previous  twelve-month period. Under the
Streamlined Documentation  Program, appraisals  are obtained  only if  the  loan
being  refinanced had a loan-to-value ratio at the time of origination in excess
of 60%.  In addition,  under  the Streamlined  Documentation Program,  a  credit
report  is obtained but only a limited  credit review is conducted, no income or
asset verification is  required, and  telephonic verification  of employment  is
permitted.   Permitted  maximum  Loan-to-Value   Ratios  under  the  Streamlined
Documentation Program range up to 100%.
 
     Countrywide does not maintain separate records regarding the delinquency or
foreclosure rates of mortgage  loans underwritten under  any of the  Alternative
Documentation  Program,  the Reduced  Documentation  Program or  the Streamlined
Documentation Program, as  compared to mortgage  loans underwritten pursuant  to
its  standard underwriting criteria. However,  Countrywide does not believe that
there are material differences regarding  the delinquency and foreclosure  rates
of  mortgage loans underwritten under the Alternative Documentation Program, the
Reduced Documentation  Program  and  the Streamlined  Documentation  Program  as
compared   to  mortgage  loans  underwritten  under  its  standard  underwriting
criteria.]
 
                          SERVICING OF MORTGAGE LOANS
 
GENERAL
 
     The Master Servicer will service the Mortgage Loans in accordance with  the
terms  set forth in  the Agreement. The  Master Servicer may  perform any of its
obligations  under   the   Agreement   through   one   or   more   subservicers.
Notwithstanding  any  such subservicing  arrangement,  the Master  Servicer will
remain liable for its servicing duties and obligations under the Agreement as if
the Master Servicer alone were servicing the Mortgage Loans.
 
THE MASTER SERVICER
 
     [Countrywide Home  Loans,  Inc.  (formerly  known  as  Countrywide  Funding
Corporation)  ('Countrywide'),  a  New  York  corporation  and  a  subsidiary of
Countrywide Credit  Industries,  Inc.,  will  act as  Master  Servicer  for  the
Mortgage  Loans pursuant to  the Agreement. Countrywide  is engaged primarily in
the mortgage banking  business, and  as such, originates,  purchases, sells  and
services  mortgage loans. Countrywide originates mortgage loans through a retail
branch system and through mortgage  loan brokers and correspondents  nationwide.
Countrywide's  mortgage loans  are principally  first-lien, fixed  or adjustable
rate mortgage loans secured by single-family residences.
 
     At                                 , [Countrywide]  provided servicing  for
approximately  $        billion  aggregate principal  amount of  mortgage loans,
substantially all of which are being serviced for unaffiliated persons.
 
     The principal executive offices  of [Countrywide are  located at 155  North
Lake Avenue, Pasadena, California 91101-7139.]
 
     Countrywide  initially services substantially all  of the mortgage loans it
originates  or  acquires.  In  addition,  Countrywide  maintains  a  program  of
purchasing  in bulk  the rights  to service  mortgage loans  originated by other
lenders. Servicing includes collecting  and remitting loan payments,  accounting
for  principal and interest, holding escrow (impound) funds for payment of taxes
and insurance,  making  inspections  as  required  of  the  mortgaged  premises,
contacting  delinquent  mortgagors,  supervising foreclosures  in  the  event of
unremedied defaults and generally administering the loans, for which Countrywide
receives servicing fees. Countrywide has in the past and may in the future  sell
to  other mortgage bankers a portion of  its portfolio of loan servicing rights.
In addition,  see  'The  Pooling  and Servicing  Agreement  --  Evidence  as  to
Compliance'    in   the   Prospectus   for   a   description   of   the   annual
 
                                      S-15
 

<PAGE>
<PAGE>
servicing report and the report  of the independent public accountants  required
to  be provided  by Countrywide  in its  capacity as  Master Servicer  under the
Agreement.]
 
MORTGAGE LOAN PRODUCTION
 
     The following table  sets forth, by  number and dollar  amount of  mortgage
loans,  [Countrywide's]  residential mortgage  loan  production for  the periods
indicated.
 
<TABLE>
<CAPTION>
                                                                     YEAR ENDED FEBRUARY 28 (29),
                                                     -------------------------------------------------------------
                                                     ---------   ----------   ----------   ----------   ----------
                                                       (DOLLAR AMOUNTS IN MILLIONS, EXCEPT AVERAGE LOAN BALANCE)
<S>                                                  <C>         <C>          <C>          <C>          <C>
FHA/VA Loans
     Number of Loans..............................
     Volume of Loans..............................   $           $            $            $            $
Conventional Loans
     Number of Loans..............................
     Volume of Loans..............................   $           $            $            $            $
Total Loans
     Number of Loans..............................
     Volume of Loans..............................   $           $            $            $            $
Average Loan Balance..............................   $           $            $            $            $
</TABLE>
 
FORECLOSURE AND DELINQUENCY EXPERIENCE
 
     Historically, a  variety of  factors, including  the appreciation  of  real
estate   values,  have  limited  the  Master  Servicer's  loss  and  delinquency
experience on  its  portfolio  of  serviced mortgage  loans.  There  can  be  no
assurance that factors beyond the Master Servicer's control, such as national or
local economic conditions or downturns in the real estate markets of its lending
areas,  will  not result  in increased  rates  of delinquencies  and foreclosure
losses in the future.
 
     Over the last several years, there has been a general deterioration of  the
real  estate market and weakening of the economy in many regions of the country,
including California. The general  deterioration of the  real estate market  has
been  reflected in increases  in delinquencies of loans  secured by real estate,
slower absorption rates of  real estate into the  market and lower sales  prices
for  real estate.  The general  weakening of the  economy has  been reflected in
decreases in the financial strength of  borrowers and decreases in the value  of
collateral  serving as security for loans. If the real estate market and economy
continue  to  decline,  the  Master  Servicer  may  experience  an  increase  in
delinquencies  on  the loans  it services  and higher  net losses  on liquidated
loans.
 
     The following table summarizes the delinquency and foreclosure  experience,
respectively, on the dates indicated, of conventional mortgage loans serviced or
master  serviced  by  the  Master  Servicer.  The  delinquency  and  foreclosure
percentages may be affected by  the size and relative  lack of seasoning of  the
servicing  portfolio  which  increased  from  approximately  $        billion at
                     to approximately $     billion at                       and
to  approximately $      billion at                           . Accordingly, the
information should not be  considered as a basis  for assessing the  likelihood,
amount  or  severity of  delinquency  or losses  on  the Mortgage  Loans  and no
assurances can
 
                                      S-16
 

<PAGE>
<PAGE>
be given that the foreclosure and delinquency experience presented in the  table
below will be indicative of such experience on the Mortgage Loans:
 
<TABLE>
<CAPTION>
                                                                       --------------------------------------------
                                                                                   AT FEBRUARY 28 (29),
                                                                       --------------------------------------------
                                                                       ----      ----      ----      ----      ----
<S>                                                                    <C>       <C>       <C>       <C>       <C>
Delinquent Mortgage Loans and Pending Foreclosures at Period End(1):
     30-59 days.....................................................      %         %         %         %         %
     60-89 days.....................................................
     90 days or more (excluding pending foreclosures)...............
                                                                       ----      ----      ----      ----      ----
          Total of delinquencies....................................      %         %         %         %         %
                                                                       ----      ----      ----      ----      ----
                                                                       ----      ----      ----      ----      ----
Foreclosures pending................................................      %         %         %         %         %
                                                                       ----      ----      ----      ----      ----
                                                                       ----      ----      ----      ----      ----
Total delinquencies and foreclosures pending........................      %         %         %         %         %
                                                                       ----      ----      ----      ----      ----
                                                                       ----      ----      ----      ----      ----
</TABLE>
 
- ------------
(1)  As a percentage of the total number of loans serviced.
 
SERVICING COMPENSATION AND PAYMENT OF EXPENSES
 
     The  Expense Fees with respect to the  Mortgage Pool are payable out of the
interest payments on each Mortgage  Loan. The Expense Fees  will be       %  per
annum  of the Stated Principal  Balance of each Mortgage  Loan. The Expense Fees
consist of (a) servicing compensation payable to the Master Servicer in  respect
of  its master  servicing activities (the  'Master Servicing Fee')  and (b) fees
payable to  the  Trustee in  respect  of its  activities  as trustee  under  the
Agreement.  The Master  Servicing Fee  will be       %  per annum  of the Stated
Principal Balance of each Mortgage Loan. The Master Servicer is obligated to pay
certain ongoing expenses  associated with  the Trust  Fund and  incurred by  the
Master  Servicer in connection with its responsibilities under the Agreement and
such amounts will be  paid by the  Master Servicer out  of the Master  Servicing
Fee.  The  amount of  the Master  Servicing  Fee is  subject to  adjustment with
respect to prepaid Mortgage Loans, as described herein under ' -- Adjustment  to
Master  Servicing Fee  in Connection with  Certain Prepaid  Mortgage Loans.' The
Master  Servicer  is   also  entitled  to   receive,  as  additional   servicing
compensation,  all late payment fees, assumption  fees and other similar charges
and all reinvestment  income earned  on amounts  on deposit  in the  Certificate
Account  and Distribution Account. The  Net Mortgage Rate of  a Mortgage Loan is
the Mortgage Rate thereof minus the  Expense Fees with respect to such  Mortgage
Loan  (expressed  as a  per  annum percentage  of  the Stated  Principal Balance
thereof).
 
ADJUSTMENT TO MASTER SERVICING FEE IN CONNECTION WITH CERTAIN PREPAID MORTGAGE
LOANS
 
     When a borrower prepays a Mortgage Loan between Due Dates, the borrower  is
required  to pay interest on  the amount prepaid only  to the date of prepayment
and not  thereafter. Except  with respect  to  the month  of the  Cut-off  Date,
principal  prepayments by  borrowers received  by the  Master Servicer  from the
first day through the fifteenth day of  a calendar month will be distributed  to
Certificateholders  on the  Distribution Date  in the  same month  in which such
prepayments are  received  and,  accordingly,  no shortfall  in  the  amount  of
interest  to be  distributed to Certificateholders  with respect  to the prepaid
Mortgage Loans results. Conversely, principal prepayments by borrowers  received
by  the Master  Servicer from the  sixteenth day (or,  in the case  of the first
Distribution Date, from  the Cut-off Date)  through the last  day of a  calendar
month  will be distributed to Certificateholders on the Distribution Date in the
month following the month of receipt and, accordingly, a shortfall in the amount
of interest to be distributed to Certificateholders with respect to such prepaid
Mortgage Loans would result. Pursuant to the Agreement, the Master Servicing Fee
for any month will be  reduced, but not by more  than [one-half] of such  Master
Servicing Fee, by an amount sufficient to pass through to Certificateholders the
full  amount of interest to which they would be entitled in respect of each such
prepaid Mortgage  Loan  on  the  related Distribution  Date.  If  shortfalls  in
interest  as a result of  prepayments in any Prepayment  Period exceed an amount
equal to one-half of the Master  Servicing Fee otherwise payable on the  related
Distribution  Date,  the  amount  of interest  available  to  be  distributed to
Certificateholders  will  be  reduced  by   the  amount  of  such  excess.   See
'Description of the Certificates -- Interest' herein.
 
                                      S-17
 

<PAGE>
<PAGE>
ADVANCES
 
     Subject  to the following limitations, the Master Servicer will be required
to advance prior to each Distribution Date,  from its own funds or funds in  the
Certificate Account that do not constitute Available Funds for such Distribution
Date,  an amount equal to the aggregate of payments of principal and interest on
the Mortgage Loans (net of the Master Servicing Fee with respect to the  related
Mortgage Loans) which were due on the related Due Date and which were delinquent
on  the  related  Determination  Date, together  with  an  amount  equivalent to
interest on each Mortgage  Loan as to which  the related Mortgaged Property  has
been  acquired  by  the  Trust  Fund  through  foreclosure  or  deed-in-lieu  of
foreclosure ('REO Property') (any such advance, an 'Advance').
 
     Advances are intended to maintain a regular flow of scheduled interest  and
principal  payments  on  the Certificates  rather  than to  guarantee  or insure
against losses. The Master Servicer is  obligated to make Advances with  respect
to  delinquent payments of principal of or interest on each Mortgage Loan to the
extent that  such Advances  are, in  its reasonable  judgment, recoverable  from
future payments and collections or insurance payments or proceeds of liquidation
of  the  related  Mortgage  Loan.  If  the  Master  Servicer  determines  on any
Determination Date to make  an Advance, such Advance  will be included with  the
distribution to Certificateholders on the related Distribution Date. Any failure
by  the Master Servicer to make an  Advance as required under the Agreement with
respect to the Certificates will constitute  an Event of Default thereunder,  in
which  case the Trustee  or the successor  master servicer will  be obligated to
make any such Advance, in accordance with the terms of the Agreement.
 
                        DESCRIPTION OF THE CERTIFICATES
 
GENERAL
 
     The Certificates will be issued pursuant to the Agreement. Set forth  below
are  summaries  of  the specific  terms  and  provisions pursuant  to  which the
Certificates will  be issued.  The  following summaries  do  not purport  to  be
complete  and are subject to,  and are qualified in  their entirety by reference
to, the provisions of the Agreement. When particular provisions or terms used in
the Agreement are referred to,  the actual provisions (including definitions  of
terms) are incorporated by reference.
 
     The  Mortgage Pass-Through Certificates, Series         will consist of the
Class A-  ,  Class         ,  Class  PO, Class  X  and  Class  A-R  Certificates
(collectively,  the 'Senior Certificates') and the Class B- , Class    and Class
   Certificates (collectively,  the  'Subordinated  Certificates').  The  Senior
Certificates  and Subordinated Certificates are  collectively referred to herein
as the 'Certificates.' Only the Classes of Certificates listed on the cover page
hereof (collectively,  the  'Offered  Certificates')  are  offered  hereby.  The
Classes   of  Offered  Certificates  will  have  the  respective  initial  Class
Certificate Balances  or  initial Notional  Amounts  (subject to  the  permitted
variance) and Pass-Through Rates set forth or described on the cover hereof.
 
     The  Class  Certificate Balance  of  any Class  of  Certificates as  of any
Distribution Date is the initial  Class Certificate Balance thereof (A)  reduced
by  the sum of (i) all amounts previously distributed to holders of Certificates
of such  Class as  payments of  principal, (ii)  the amount  of Realized  Losses
(including  Excess Losses) allocated to such Class  and (iii) in the case of any
Class of  Subordinated Certificates,  any  amounts allocated  to such  Class  in
reduction  of its Class Certificate  Balance in respect of  payments of Class PO
Deferred Amounts,  as described  below  under '  --  Allocation of  Losses'.  In
addition,   the  Class  Certificate   Balance  of  the   Class  of  Subordinated
Certificates then outstanding with the highest numerical Class designation  will
be  reduced if  and to the  extent that  the aggregate of  the Class Certificate
Balances of all  Classes of  Certificates, following all  distributions and  the
allocation of Realized Losses on a Distribution Date, exceeds the Pool Principal
Balance as of the Due Date occurring in the month of such Distribution Date. The
Notional Amount Certificates do not have principal balances and are not entitled
to any distributions in respect of principal of the Mortgage Loans.
 
     The  Notional Amount of the Class  X Certificates for any Distribution Date
will be  equal  to  the  aggregate  of the  Stated  Principal  Balances  of  the
Non-Discount  Mortgage Loans with respect to such Distribution Date. The initial
Notional Amount of the Class  X Certificates will be  equal to the aggregate  of
the  Stated  Principal Balance  of  the Non-Discount  Mortgage  Loans as  of the
Cut-off Date.
 
                                      S-18
 

<PAGE>
<PAGE>
     The Senior Certificates will have an initial aggregate principal balance of
approximately $                 and will  evidence in the  aggregate an  initial
beneficial  ownership interest of  approximately       % in  the Trust Fund. The
Class B-  , Class      and  Class      Certificates will  each evidence  in  the
aggregate  an initial  beneficial ownership  interest of  approximately       %,
    %,     %,     %,     %, and     %, respectively, in the Trust Fund.
 
     The Book-Entry Certificates will be  issuable in book-entry form only.  The
Physical  Certificates will be issued in fully registered certificated form. The
Physical Certificates (other than Class A-R Certificates) offered hereby will be
issued in  minimum dollar  denominations of  $25,000 and  integral multiples  of
$1,000  in excess thereof. A single Certificate of each such Class may be issued
in an amount different than described above. The Class A-R Certificates will  be
issued as a single Certificate in a denomination of $1,000.
 
SEPARATE REMIC STRUCTURE
 
     For federal income tax purposes, the Trust Fund will include two segregated
asset  pools, each of which  will be treated as a  separate REMIC. The assets of
the Subsidiary REMIC will generally consist of the Mortgage Loans. The assets of
the Master REMIC will generally consist of uncertified regular interests  issued
by  the  Subsidiary  REMIC,  which  in  the  aggregate  will  correspond  to the
Certificates.
 
BOOK-ENTRY CERTIFICATES
 
     Each Class  of  Book-Entry Certificates  will  be  issued in  one  or  more
certificates which equal the aggregate initial Class Certificate Balance of each
such Class of Certificates and which will be held by a nominee of The Depository
Trust Company (together with any successor depository selected by the Depositor,
the  'Depository'). Beneficial interests in  the Book-Entry Certificates will be
held  indirectly  by  investors  through   the  book-entry  facilities  of   the
Depository, as described herein. Investors may hold such beneficial interests in
the  Book-Entry Certificates  in minimum denominations  representing an original
principal amount of $25,000 and integral multiples of $1,000 in excess  thereof.
One  investor of  each Class  of Book-Entry  Certificates may  hold a beneficial
interest therein that is not an  integral multiple of $1,000. The Depositor  has
been  informed by the Depository  that its nominee will  be CEDE & Co. ('CEDE').
Accordingly, CEDE  is expected  to be  the holder  of record  of the  Book-Entry
Certificates.  Except as described  in the Prospectus  under 'Description of the
Certificates --  Book-Entry  Certificates,'  no person  acquiring  a  Book-Entry
Certificate  (each, a 'beneficial owner') will be entitled to receive a physical
certificate representing such Certificate (a 'Definitive Certificate').
 
     Unless and until Definitive Certificates are issued, it is anticipated that
the only 'Certificateholder'  of the  Book-Entry Certificates will  be CEDE,  as
nominee of the Depository. Beneficial owners of the Book-Entry Certificates will
not  be Certificateholders,  as that term  is used in  the Agreement. Beneficial
owners  are  only  permitted  to  exercise  the  rights  of   Certificateholders
indirectly  through  Financial Intermediaries  and  the Depository.  Monthly and
annual reports on the Trust Fund provided to CEDE, as nominee of the Depository,
may be made available to beneficial owners upon request, in accordance with  the
rules,  regulations and procedures creating and affecting the Depository, and to
the  Financial  Intermediaries  to  whose  Depository  accounts  the  Book-Entry
Certificates of such beneficial owners are credited.
 
     For  a description of the procedures generally applicable to the Book-Entry
Certificates, see 'Description of  the Certificates -- Book-Entry  Certificates'
in the Prospectus.
 
PAYMENTS ON MORTGAGE LOANS; ACCOUNTS
 
     On  or prior  to the  Closing Date, the  Master Servicer  will establish an
account (the 'Certificate Account'), which will  be maintained in trust for  the
benefit of the Certificateholders. Funds credited to the Certificate Account may
be  invested for the benefit and at the risk of the Master Servicer in Permitted
Investments, as defined  in the Agreement,  that are scheduled  to mature on  or
prior  to the business day preceding the  next Distribution Date. On or prior to
the business  day  immediately  preceding each  Distribution  Date,  the  Master
Servicer will withdraw from the Certificate Account the
 
                                      S-19
 

<PAGE>
<PAGE>
amount  of Available Funds and  will deposit such Available  Funds in an account
established and maintained with the Trustee on behalf of the  Certificateholders
(the 'Distribution Account').
 
DISTRIBUTIONS
 
     Distributions  on the Certificates will be made  by the Trustee on the 25th
day of each month, or if such day  is not a business day, on the first  business
day  thereafter, commencing in        199 (each, a  'Distribution Date'), to the
persons in whose names such Certificates are registered at the close of business
on the last business day of the  month preceding the month of such  Distribution
Date (the 'Record Date').
 
     Distributions on each Distribution Date will be made by check mailed to the
address  of  the  person  entitled  thereto  as  it  appears  on  the applicable
certificate register or, in the case of a Certificateholder who holds 100% of  a
Class  of  Certificates  or who  holds  Certificates with  an  aggregate initial
Certificate Balance  of  $1,000,000  or  more or  who  holds  an  Interest  Only
Certificate  and who has so  notified the Trustee in  writing in accordance with
the Agreement, by wire transfer in immediately available funds to the account of
such  Certificateholder  at  a  bank  or  other  depository  institution  having
appropriate   wire  transfer  facilities;  provided,  however,  that  the  final
distribution  in  retirement  of  the  Certificates  will  be  made  only   upon
presentment  and surrender of such Certificates at the Corporate Trust Office of
the Trustee.
 
PRIORITY OF DISTRIBUTIONS AMONG CERTIFICATES
 
     As more  fully  described  herein,  distributions  will  be  made  on  each
Distribution  Date from Available Funds in  the following order of priority: (i)
to interest  on each  interest bearing  Class of  Senior Certificates;  (ii)  to
principal  on  the  Classes  of Senior  Certificates  then  entitled  to receive
distributions of principal, in the order and subject to the priorities set forth
herein under '  -- Principal,' in  each case in  an aggregate amount  up to  the
maximum  amount  of  principal  to  be  distributed  on  such  Classes  on  such
Distribution Date; (iii) to  any Class PO Deferred  Amounts with respect to  the
Class PO Certificates, but only from amounts that would otherwise be distributed
on  such Distribution  Date as principal  of the  Subordinated Certificates; and
(iv)  to  interest  on  and  then  principal  of  each  Class  of   Subordinated
Certificates, in the order of their numerical Class designations, beginning with
the  Class     Certificates, in each  case subject to  the limitations set forth
herein under 'Description of the Certificates -- Principal.'
 
     'Available Funds' with respect  to any Distribution Date  will be equal  to
the  sum  of (i)  all scheduled  installments  of interest  (net of  the related
Expense Fees) and  principal due  on the  Due Date in  the month  in which  such
Distribution  Date occurs and received prior  to the related Determination Date,
together with any Advances in respect thereof; (ii) all proceeds of any  primary
mortgage  guaranty  insurance policies  and  any other  insurance  policies with
respect to the Mortgage Loans,  to the extent such  proceeds are not applied  to
the  restoration of the related Mortgaged  Property or released to the Mortgagor
in  accordance   with  the   Master  Servicer's   normal  servicing   procedures
(collectively,  'Insurance Proceeds')  and all  other cash  amounts received and
retained in  connection with  the liquidation  of defaulted  Mortgage Loans,  by
foreclosure  or  otherwise ('Liquidation  Proceeds')  during the  calendar month
preceding the month of such Distribution Date (in each case, net of unreimbursed
expenses  incurred  in  connection  with   a  liquidation  or  foreclosure   and
unreimbursed  Advances, if any); (iii) all  partial or full prepayments received
during the month preceding the month of such Distribution Date; and (iv) amounts
received with respect to such  Distribution Date as the Substitution  Adjustment
Amount  or purchase price  in respect of  a Deleted Mortgage  Loan or a Mortgage
Loan repurchased by the  Seller or the Master  Servicer as of such  Distribution
Date, reduced by amounts in reimbursement for Advances previously made and other
amounts  as to which the  Master Servicer is entitled  to be reimbursed from the
Certificate Account pursuant to the Agreement.
 
INTEREST
 
     The Classes of Offered Certificates  will have the respective  Pass-Through
Rates set forth or described on the cover hereof.
 
                                      S-20
 

<PAGE>
<PAGE>
     The  Pass-Through Rate  for the Class  X Certificates  for any Distribution
Date will be equal to the excess of (a) the average of the Net Mortgage Rates of
the Non-Discount Mortgage Loans, weighted on  the basis of the Stated  Principal
Balances  thereof, over (b)     % per annum. The Pass-Through Rate for the Class
X Certificates for the first Distribution  Date is expected to be  approximately
      %  per annum. The Net Mortgage Rate for each Mortgage Loan is the Mortgage
Rate thereof (net of  the interest premium charged  by the related lenders  with
respect  to the Lender  PMI Mortgage Loans)  less the Expense  Fee Rate for such
Mortgage Loan.
 
     On each Distribution Date, to the extent of funds available therefor,  each
interest  bearing Class  of Certificates will  be entitled to  receive an amount
allocable to  interest  (as  to  each such  Class,  the  'Interest  Distribution
Amount')  with  respect to  the related  Interest  Accrual Period.  The Interest
Distribution Amount for any interest bearing Class  will be equal to the sum  of
(i)   interest  at  the  applicable  Pass-Through  Rate  on  the  related  Class
Certificate Balance or Notional Amount, as the case may be, and (ii) the sum  of
the  amounts, if any, by which the amount  described in clause (i) above on each
prior Distribution Date exceeded the amount actually distributed as interest  on
such prior Distribution Dates and not subsequently distributed ('Unpaid Interest
Amounts').  The Class PO  Certificates are Principal  Only Certificates and will
not bear interest.
 
     With respect to each Distribution  Date, the 'Interest Accrual Period'  for
each interest bearing Class of Certificates will be the calendar month preceding
the month of such Distribution Date.
 
     The interest entitlement described above for each Class of Certificates for
any Distribution Date will be reduced by the amount of 'Net Interest Shortfalls'
for  such Distribution  Date. With  respect to  any Distribution  Date, the 'Net
Interest Shortfall' is equal to (i) the amount of interest that would  otherwise
have been received with respect to any Mortgage Loan that was the subject of (x)
a  Relief Act Reduction or  (y) a Special Hazard  Loss, Fraud Loss, Debt Service
Reduction or Deficient Valuation, after the exhaustion of the respective amounts
of coverage provided by the Subordinated  Certificates for such types of  losses
and   (ii)  any  Net  Prepayment  Interest   Shortfalls  with  respect  to  such
Distribution Date. A  'Relief Act  Reduction' is a  reduction in  the amount  of
monthly  interest  payment on  a  Mortgage Loan  pursuant  to the  Soldiers' and
Sailors' Civil Relief Act  of 1940. See 'Certain  Legal Aspects of the  Mortgage
Loans  --  Soldiers' and  Sailors'  Civil Relief  Act'  in the  Prospectus. With
respect to any Distribution Date, a  'Net Prepayment Interest Shortfall' is  the
amount  by  which the  aggregate of  Prepayment  Interest Shortfalls  during the
calendar month  preceding  the  month  of such  Distribution  Date  exceeds  the
aggregate  amount payable  on such Distribution  Date by the  Master Servicer as
described under 'Servicing of Mortgage  Loans -- Adjustment to Master  Servicing
Fee  in Connection with Certain Prepaid  Mortgage Loans.' A 'Prepayment Interest
Shortfall' is the amount by which interest paid by a borrower in connection with
a prepayment of principal on a Mortgage  Loan is less than one month's  interest
at  the related Mortgage Rate  on the Stated Principal  Balance of such Mortgage
Loan. Each Class' pro rata share of  such Net Interest Shortfalls will be  based
on  the amount  of interest  such Class  otherwise would  have been  entitled to
receive on such Distribution Date.
 
     Accrued interest  to  be  distributed  on any  Distribution  Date  will  be
calculated,  in the case of each interest  bearing Class of Certificates, on the
basis  of  the  related  Class  Certificate  Balance  or  Notional  Amount,   as
applicable,  immediately  prior  to  such Distribution  Date.  Interest  will be
calculated and payable on the basis of a 360-day year divided into twelve 30-day
months.
 
     In the event that,  on a particular Distribution  Date, Available Funds  in
the Certificate Account applied in the order described above under ' -- Priority
of  Distributions  Among  Certificates'  are  not  sufficient  to  make  a  full
distribution of the interest entitlement  on the Certificates, interest will  be
distributed  on each Class of Certificates of equal priority based on the amount
of interest each such Class would otherwise have been entitled to receive in the
absence of such shortfall.  Any Unpaid Interest Amount  will be carried  forward
and  added to  the amount  holders of  each such  Class of  Certificates will be
entitled to receive on the next Distribution Date. Such a shortfall could occur,
for example, if losses realized on the Mortgage Loans were exceptionally high or
were concentrated in a particular month.  Any Unpaid Interest Amount so  carried
forward will not bear interest.
 
                                      S-21
 

<PAGE>
<PAGE>
PRINCIPAL
 
     General. All payments and other amounts received in respect of principal of
the  Mortgage Loans will be allocated between (i) the Senior Certificates (other
than the Notional  Amount Certificates and  the Class PO  Certificates) and  the
Subordinated Certificates and (ii) the Class PO Certificates, in each case based
on   the  applicable  Non-PO  Percentage   and  the  applicable  PO  Percentage,
respectively, of such amounts.
 
     The Non-PO Percentage with respect to any Mortgage Loan with a Net Mortgage
Rate ('NMR') less  than      %  (each such Mortgage  Loan, a 'Discount  Mortgage
Loan')  will be equal to NMR [div]      %. The Non-PO Percentage with respect to
any Mortgage Loan with a Net Mortgage Rate equal to or greater than     %  (each
such  Mortgage  Loan,  a 'Non-Discount  Mortgage  Loan')  will be  100%.  The PO
Percentage with respect to any Discount Mortgage Loan will be equal to (    %  -
NMR)  [div]      %. The PO Percentage with  respect to any Non-Discount Mortgage
Loan will be 0%.
 
     Non-PO Formula  Principal Amount.  On each  Distribution Date,  the  Non-PO
Formula  Principal  Amount  will  be  distributed  as  principal  of  the Senior
Certificates (other  than the  Notional  Amount Certificates  and the  Class  PO
Certificates)  and the  Subordinated Certificates, to  the extent  of the amount
available from  Available  Funds  for  the distribution  of  principal  on  such
respective Classes, as described below.
 
     The  Non-PO Formula Principal  Amount for any  Distribution Date will equal
the sum  of the  applicable Non-PO  Percentage of  (a) all  monthly payments  of
principal  due on each Mortgage Loan on  the related Due Date, (b) the principal
portion of the purchase price of each Mortgage Loan that was repurchased by  the
Seller or another person pursuant to the Agreement as of such Distribution Date,
(c)  the Substitution Adjustment Amount in  connection with any Deleted Mortgage
Loan received with respect to such Distribution Date, (d) any Insurance Proceeds
or 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  the Liquidation Proceeds
allocable to principal received with respect  to such Mortgage Loan and (f)  all
partial  and full principal prepayments by borrowers received during the related
Prepayment Period.
 
     Senior Principal Distribution Amount.   On each Distribution Date prior  to
the  Senior Credit Support Depletion Date,  the Non-PO Formula Principal Amount,
up  to  the  amount  of  the  Senior  Principal  Distribution  Amount  for  such
Distribution  Date, will be distributed as principal of the following Classes of
Senior Certificates in the following order of priority:
 
          (i) to the Class A-R Certificates until the Class Certificate  Balance
     thereof has been reduced to zero;
 
          (ii)  concurrently, to the Class      and Class      Certificates, pro
     rata based on their respective Class Certificate Balances, until the  Class
     Certificate Balances thereof have been reduced to zero;
 
          (iii)  sequentially, to  the Class       Certificates,  in that order,
     until the respective Class Certificate Balance thereof has been reduced  to
     zero;
 
          (iv)  sequentially, to the Class       and Class      Certificates, in
     that order, until the respective Class Certificate Balance has been reduced
     to zero; and
 
          (v) to the Class     Certificates until the Class Certificate  Balance
     thereof has been reduced to zero.
 
     Notwithstanding  the foregoing, on each Distribution  Date on and after the
Senior Credit Support Depletion Date,  the Non-PO Formula Principal Amount  will
be  distributed, concurrently as principal of the Classes of Senior Certificates
(other than the Notional Amount Certificates and the Class PO Certificates), pro
rata, in accordance with their respective Class Certificate Balances immediately
prior to such Distribution Date.
 
     The Senior Credit  Support Depletion Date  is the date  on which the  Class
Certificate  Balance of each Class of Subordinated Certificates has been reduced
to zero.
 
                                      S-22
 

<PAGE>
<PAGE>
     The Senior Principal  Distribution Amount  for any  Distribution Date  will
equal  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
Formula Principal Amount' for such Distribution Date, (ii) with respect to  each
Mortgage  Loan that became a Liquidated  Mortgage Loan during the calendar month
preceding the month  of such  Distribution Date, the  lesser of  (x) the  Senior
Percentage  of the applicable Non-PO Percentage  of the Stated Principal Balance
of such Mortgage Loan and (y) either (A) the Senior Prepayment Percentage or (B)
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  amount  of the  Liquidation  Proceeds  allocable  to
principal  received with  respect to  such Mortgage  Loan, and  (iii) the Senior
Prepayment Percentage of the applicable  Non-PO Percentage of amounts  described
in  clause (f) of the  definition of 'Non-PO Formula  Principal Amount' for such
Distribution Date;  provided, however,  that if  a Bankruptcy  Loss 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
applicable Non-PO Percentage of the principal portion of such Bankruptcy Loss.
 
     'Stated Principal Balance' means as to any Mortgage Loan and Due Date,  the
unpaid principal balance of such Mortgage Loan as of such Due Date, as specified
in the amortization schedule at the time relating thereto (before any adjustment
to  such amortization schedule by reason of  any moratorium or similar waiver or
grace period),  after giving  effect  to any  previous partial  prepayments  and
Liquidation  Proceeds received and to  the payment of principal  due on such Due
Date and irrespective of  any delinquency in payment  by the related  Mortgagor.
The  Pool Principal  Balance with  respect to  any Distribution  Date equals the
aggregate of the Stated Principal Balances of the Mortgage Loans outstanding  on
the Due Date in the month preceding the month of such Distribution Date.
 
     The   Senior  Percentage  for  any  Distribution  Date  is  the  percentage
equivalent of a fraction the  numerator of which is  the aggregate of the  Class
Certificate  Balances of each Class of Senior Certificates (other than the Class
PO 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 PO Certificates, immediately prior to such date.
 
     The Senior Prepayment Percentage for any Distribution Date occurring during
the five  years  beginning on  the  first  Distribution Date  will  equal  100%.
Thereafter, the Senior Prepayment Percentage will, except as described below, be
subject  to  gradual reduction  as described  in  the following  paragraph. This
disproportionate allocation  of  certain  unscheduled  payments  in  respect  of
principal  will have the  effect of accelerating the  amortization of the Senior
Certificates which receive these unscheduled  payments of principal (other  than
the  Class PO Certificates) while, in the absence of Realized Losses, increasing
the interest  in  the  Pool  Principal Balance  evidenced  by  the  Subordinated
Certificates.   Increasing   the   respective  interest   of   the  Subordinated
Certificates relative to that of the Senior Certificates is intended to preserve
the availability of the subordination provided by the Subordinated Certificates.
 
     The Senior Prepayment Percentage for any Distribution Date occurring on  or
after  the fifth anniversary of the first  Distribution Date will be as follows:
for any Distribution Date  in the first year  thereafter, the Senior  Percentage
plus  70% of  the Subordinated  Percentage for  such Distribution  Date; for any
Distribution Date in the second year thereafter, the Senior Percentage plus  60%
of  the Subordinated Percentage for such Distribution Date; for any Distribution
Date in  the  third year  thereafter,  the Senior  Percentage  plus 40%  of  the
Subordinated Percentage for such Distribution Date; for any Distribution Date in
the  fourth year thereafter, the Senior  Percentage plus 20% of the Subordinated
Percentage for such Distribution Date; and for any Distribution Date thereafter,
the Senior 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 if (i) the outstanding principal balance of all
Mortgage Loans delinquent 60 days or more (averaged over the preceding six month
period), as a percentage of the aggregate principal balance of the  Subordinated
Certificates  (averaged over  the preceding  six month  period), is  equal to or
greater   than    50%,    or    (ii)    cumulative    Realized    Losses    with
 
                                      S-23
 

<PAGE>
<PAGE>
respect  to the Mortgage Loans exceed (a)  with respect to the Distribution Date
on the fifth anniversary of the first Distribution Date, 30% of the aggregate of
the principal balances of the Subordinated C ertificates as of the Cut-off  Date
(the  'Original  Subordinated  Principal  Balance'),  (b)  with  respect  to the
Distribution Date on the sixth anniversary  of the first Distribution Date,  35%
of  the  Original  Subordinated  Principal  Balance,  (c)  with  respect  to the
Distribution Date on the seventh anniversary of the first Distribution Date, 40%
of the  Original  Subordinated  Principal  Balance,  (d)  with  respect  to  the
Distribution  Date on the eighth anniversary of the first Distribution Date, 45%
of the Original  Subordinated Principal  Balance, and  (e) with  respect to  the
Distribution  Date on the ninth anniversary  of the first Distribution Date, 50%
of the  Original Subordinated  Principal  Balance. The  Subordinated  Prepayment
Percentage  as of  any Distribution  Date will  be calculated  as the difference
between 100% and the Senior Prepayment Percentage for such date.
 
     If on  any  Distribution  Date  the  allocation  to  the  Class  of  Senior
Certificates  then entitled  to distributions of  principal of  full and partial
principal prepayments and other amounts  in the percentage required above  would
reduce  the outstanding Class Certificate Balance  of such Class below zero, the
distribution to such Class of  Certificates of the Senior Prepayment  Percentage
of  such amounts for  such Distribution Date  will be limited  to the percentage
necessary to reduce the related Class Certificate Balance to zero.
 
     Subordinated Principal Distribution Amount.  On each Distribution Date,  to
the  extent of Available Funds therefor, the Non-PO Formula Principal Amount, up
to the  amount  of  the  Subordinated Principal  Distribution  Amount  for  such
Distribution  Date,  will  be  distributed  as  principal  of  the  Subordinated
Certificates.  Except  as  provided  in  the  next  paragraph,  each  Class   of
Subordinated  Certificates will be entitled to receive its pro rata share of the
Subordinated Principal  Distribution  Amount  (based  on  its  respective  Class
Certificate  Balance), in each case  to the extent of  the amount available from
Available Funds for distribution of principal. Distributions of principal of the
Subordinated  Certificates  will  be  made   sequentially  to  the  Classes   of
Subordinated  Certificates in the  order of their  numerical Class designations,
beginning with the Class    Certificates, until the respective Class Certificate
Balances thereof  are  reduced to  zero.  The Subordinated  Percentage  for  any
Distribution  Date will  be calculated  as the  difference between  100% and the
Senior Percentage.
 
     With respect  to  each  Class  of  Subordinated  Certificates,  if  on  any
Distribution Date the sum of the related Class Subordination Percentages of such
Class  and all Classes of Subordinated  Certificates which have higher numerical
Class designations than such Class (the 'Applicable Credit Support  Percentage')
is less than the Applicable Credit Support Percentage for such Class on the date
of  issuance  of  the  Certificates  (the  'Original  Applicable  Credit Support
Percentage'), no  distribution of  partial principal  prepayments and  principal
prepayments  in full will be made to any such Classes (the 'Restricted Classes')
and the amount  of partial  principal prepayments and  principal prepayments  in
full  otherwise distributable to the Restricted  Classes will be allocated among
the remaining Classes of Subordinated  Certificates, pro rata, based upon  their
respective  Class Certificate Balances, and  distributed in the sequential order
described above.
 
     The Class Subordination  Percentage with respect  to any Distribution  Date
and  each Class of Subordinated Certificates, will equal the fraction (expressed
as a percentage) the numerator of which is the Class Certificate Balance of such
Class of Subordinated Certificates immediately  prior to such Distribution  Date
and  the denominator of which is the aggregate of the Class Certificate Balances
of all Classes of Certificates immediately prior to such Distribution Date.
 
     The approximate  Original Applicable  Credit  Support Percentages  for  the
Subordinated  Certificates  on  the date  of  issuance of  the  Certificates are
expected to be as follows:
 
<TABLE>

<S>                                                                                <C>
Class    .......................................................................        %
Class    .......................................................................        %
Class    .......................................................................        %
Class    .......................................................................        %
Class    .......................................................................        %
Class    .......................................................................        %
</TABLE>
 
                                      S-24
 

<PAGE>
<PAGE>
     The Subordinated Principal  Distribution Amount for  any Distribution  Date
will  equal (A)  the sum  of (i) the  Subordinated Percentage  of the applicable
Non-PO Percentage of  all amounts described  in clauses (a)  through (d) of  the
definition of 'Non-PO Formula Principal Amount' for such Distribution Date, (ii)
with respect to each Mortgage Loan that became a Liquidated Mortgage Loan during
the calendar month preceding the month of such Distribution Date, the applicable
Non-PO  Percentage of the  Liquidation Proceeds allocable  to principal received
with respect to such Mortgage Loan,  after application of such amounts  pursuant
to  clause (ii) of the definition of Senior Principal Distribution Amount, up to
the Subordinated Percentage of  the applicable Non-PO  Percentage of the  Stated
Principal  Balance of such  Mortgage Loan and  (iii) the Subordinated Prepayment
Percentage of  the applicable  Non-PO  Percentage of  the amounts  described  in
clause  (f)  of the  definition of  'Non-PO Formula  Principal Amount'  for such
Distribution Date reduced by (B) the amount of any payments in respect of  Class
PO Deferred Amounts on the related Distribution Date.
 
     Residual  Certificates. The Class A-R  Certificates will remain outstanding
for so long as  the Trust Fund  shall exist, whether or  not they are  receiving
current  distributions of principal or interest. In addition to distributions of
interest and  principal  as described  above,  on each  Distribution  Date,  the
holders  of the Class A-R Certificates will be entitled to receive any Available
Funds  remaining  after  payment  of  interest  and  principal  on  the   Senior
Certificates  and Class  PO Deferred  Amounts on  the Class  PO Certificates and
interest and principal on the Subordinated Certificates, as described above.  It
is  not anticipated that there will be any significant amounts remaining for any
such distribution.
 
     Class  PO  Principal  Distribution  Amount.  On  each  Distribution   Date,
distributions  of principal  of the  Class PO  Certificates will  be made  in an
amount (the 'Class PO Principal Distribution Amount') equal to the lesser of (x)
the PO Formula Principal Amount for  such Distribution Date and (y) the  product
of  (i) Available Funds  remaining after distribution of  interest on the Senior
Certificates and  (ii) a  fraction, the  numerator of  which is  the PO  Formula
Principal  Amount and  the denominator  of which  is the  sum of  the PO Formula
Principal Amount and the Senior Principal Distribution Amount.
 
     If the Class  PO Principal Distribution  Amount on a  Distribution Date  is
calculated  as provided in clause (y)  above, principal distributions to holders
of the Senior Certificates (other than the Class PO Certificates) will be in  an
amount  equal to the product of (i) Available Funds remaining after distribution
of interest on  the Senior Certificates  and (ii) a  fraction, the numerator  of
which  is the Senior Principal Distribution  Amount and the denominator of which
is the  sum of  the Senior  Principal  Distribution Amount  and the  PO  Formula
Principal Amount.
 
     The  PO Formula Principal  Amount for any Distribution  Date will equal the
sum of the applicable PO Percentage of (a) all monthly payments of principal due
on each Mortgage Loan on the related Due Date, (b) the principal portion of  the
purchase  price of  each Mortgage  Loan that  was repurchased  by the  Seller or
another person pursuant to the Agreement  as of such Distribution Date, (c)  the
Substitution  Adjustment  Amount in  connection with  any Deleted  Mortgage Loan
received with respect to such Distribution  Date, (d) any Insurance Proceeds  or
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 and (f)  all
partial  and full principal prepayments by borrowers received during the related
Prepayment Period;  provided, however,  that if  a Bankruptcy  Loss that  is  an
Excess  Loss is sustained with respect to a Discount Mortgage Loan that is not a
Liquidated Mortgage Loan, the PO Formula Principal Amount will be reduced on the
related Distribution  Date by  the  applicable PO  Percentage of  the  principal
portion of such Bankruptcy Loss.
 
ALLOCATION OF LOSSES
 
     On  each Distribution  Date, the applicable  PO Percentage  of any Realized
Loss, including any Excess Loss, on  a Discount Mortgage Loan will be  allocated
to  the Class  PO Certificates  until the  Class Certificate  Balance thereof is
reduced to zero.  The amount of  any such  Realized Loss, other  than an  Excess
Loss,  allocated on or prior to the Senior Credit Support Depletion Date will be
treated as a Class PO Deferred Amount. To the extent funds are available on such
Distribution Date or on any
 
                                      S-25
 

<PAGE>
<PAGE>
future Distribution Date from amounts that  would otherwise be allocable to  the
Subordinated  Principal Distribution Amount,  Class PO Deferred  Amounts will be
paid on the  Class PO Certificates  prior to distributions  of principal on  the
Subordinated  Certificates. Any  distribution of  Available Funds  in respect of
unpaid Class PO Deferred Amounts will  not further reduce the Class  Certificate
Balance  of the Class  PO Certificates. The  Class PO Deferred  Amounts will not
bear interest.  The  Class Certificate  Balance  of the  Class  of  Subordinated
Certificates  then outstanding with the highest numerical Class designation will
be reduced  by the  amount  of any  payments in  respect  of Class  PO  Deferred
Amounts.  After  the  Senior Credit  Support  Depletion  Date, no  new  Class PO
Deferred Amounts will be created.
 
     On each Distribution Date, the applicable Non-PO Percentage of any Realized
Loss, other than any  Excess Loss, will be  allocated first to the  Subordinated
Certificates,  in  the  reverse  order  of  their  numerical  Class designations
(beginning with the Class of Subordinated Certificates then outstanding with the
highest numerical Class designation), in  each case until the Class  Certificate
Balance  of the respective Class  of Certificates has been  reduced to zero, and
then to the Senior Certificates (other than the Notional Amount Certificates and
the  Class  PO  Certificates)  pro  rata,  based  upon  their  respective  Class
Certificate Balances.
 
     On  each  Distribution Date,  the  applicable Non-PO  Percentage  of Excess
Losses will  be allocated  pro rata  among the  Classes of  Senior  Certificates
(other  than the Notional Amount Certificates and the Class PO Certificates) and
the Subordinated  Certificates based  upon  their respective  Class  Certificate
Balances.
 
     Because principal distributions are paid to certain Classes of Certificates
(other  than the  Class PO Certificates)  before other  Classes of Certificates,
holders of such Certificates that are entitled to receive principal later bear a
greater risk  of being  allocated Realized  Losses on  the Mortgage  Loans  than
holders of Classes that are entitled to receive principal earlier.
 
     Realized  Losses allocated to a Class of Certificates comprised of multiple
payment Components will be allocated pro rata among the Components of such Class
of Certificates based on their respective Component Balances.
 
     In general, a 'Realized Loss' means, with respect to a Liquidated  Mortgage
Loan, the amount by which the remaining unpaid principal balance of the Mortgage
Loan exceeds the amount of Liquidation Proceeds applied to the principal balance
of  the related Mortgage Loan. 'Excess Losses'  are (i) Special Hazard Losses in
excess of the  Special Hazard Loss  Coverage Amount, (ii)  Bankruptcy Losses  in
excess  of the Bankruptcy Loss Coverage Amount  and (iii) Fraud Losses in excess
of the  Fraud Loss  Coverage Amount.  'Bankruptcy Losses'  are losses  that  are
incurred  as  a  result of  Debt  Service Reductions  and  Deficient Valuations.
'Special Hazard  Losses'  are  Realized  Losses in  respect  of  Special  Hazard
Mortgage  Loans. 'Fraud  Losses' are losses  sustained on  a Liquidated Mortgage
Loan by reason of a default arising from fraud, dishonesty or misrepresentation.
See 'Credit Enhancement -- Subordination of Certain Classes' herein.
 
     A 'Liquidated Mortgage Loan' is a  defaulted Mortgage Loan as to which  the
Master  Servicer has determined  that all recoverable  liquidation and insurance
proceeds have been received.  A 'Special Hazard Mortgage  Loan' is a  Liquidated
Mortgage  Loan as to which the ability to recover the full amount due thereunder
was substantially impaired  by a  hazard not  insured against  under a  standard
hazard  insurance policy of  the type described in  the Prospectus under 'Credit
Enhancement   --    Special   Hazard    Insurance   Policies.'    See    'Credit
Enhancement -- Subordination of Certain Classes' herein.
 
STRUCTURING ASSUMPTIONS
 
     Unless   otherwise  specified,  the  information  in  the  tables  in  this
Prospectus Supplement has been  prepared on the basis  of the following  assumed
characteristics of the Mortgage Loans and the following
 
                                      S-26
 

<PAGE>
<PAGE>
additional  assumptions (collectively,  the 'Structuring  Assumptions'): (i) the
Mortgage Pool consists of    Mortgage Loans with the following characteristics:
 
<TABLE>
<CAPTION>
                                                        ORIGINAL TERM     REMAINING TERM
   PRINCIPAL                               NET           TO MATURITY       TO MATURITY
     BALANCE        MORTGAGE RATE     MORTGAGE RATE      (IN MONTHS)       (IN MONTHS)       LOAN AGE
- ---------------     -------------     -------------     -------------     --------------     --------
 
<S>                 <C>               <C>               <C>               <C>                <C>
$                                %                 %
$                                %                 %
</TABLE>
 
(ii) the Mortgage  Loans prepay at  the specified constant  percentages of  SPA,
(iii)  no defaults in the payment by  Mortgagors of principal of and interest on
the Mortgage  Loans are  experienced, (iv)  scheduled payments  on the  Mortgage
Loans  are received on  the first day  of each month  commencing in the calendar
month following the  Closing Date  and are computed  prior to  giving effect  to
prepayments  received on the  last day of  the prior month,  (v) prepayments are
allocated as  described herein  without giving  effect to  loss and  delinquency
tests,  (vi)  there are  no Net  Interest  Shortfalls and  prepayments represent
prepayments in full of  individual Mortgage Loans and  are received on the  last
day  of each month, commencing in the  calendar month of the Closing Date, (vii)
the scheduled monthly payment  for each Mortgage Loan  has been calculated  such
that each Mortgage Loan will amortize in amounts sufficient to repay the current
balance  of such  Mortgage Loan  by its  respective remaining  term to maturity,
(viii) the initial Class Certificate Balance or Notional Amount, as  applicable,
of each Class of Certificates is as set forth on the cover page hereof and under
'Summary  of Terms  -- Certificates other  than the  Offered Certificates', (ix)
interest  accrues  on  each  interest  bearing  Class  of  Certificates  at  the
applicable  interest rate  set forth  or described  on the  cover hereof  and as
described herein, (x) distributions in respect of the Certificates are  received
in  cash on the     day of each month commencing in the calendar month following
the Closing Date, (xi) the closing date of the sale of the Offered  Certificates
is the date set forth under 'Summary of Terms -- Closing Date,' (xii) the Seller
is  not required to repurchase  or substitute for any  Mortgage Loan, (xiii) the
Master Servicer does not  exercise the option to  repurchase the Mortgage  Loans
described   herein  under  '  --  Optional  Purchase  of  Defaulted  Loans'  and
' --  Optional  Termination'  and  (xiv) no  Class  of  Certificates  becomes  a
Restricted Class. While it is assumed that each of the Mortgage Loans prepays at
the  specified constant percentages of  SPA, this is not  likely to be the case.
Moreover, discrepancies  may exist  between the  characteristics of  the  actual
Mortgage Loans which will be delivered to the Trustee and characteristics of the
Mortgage Loans used in preparing the tables herein.
 
     Prepayments   of  mortgage  loans  commonly  are  measured  relative  to  a
prepayment standard or model.  The model used in  this Prospectus Supplement  is
the  Standard Prepayment Assumption ('SPA'), which represents an assumed rate of
prepayment each month of the then outstanding principal balance of a pool of new
mortgage loans. SPA does  not purport to be  either a historical description  of
the  prepayment experience of any pool of  mortgage loans or a prediction of the
anticipated rate of  prepayment of  any pool  of mortgage  loans, including  the
Mortgage  Loans. 100% SPA assumes prepayment rates of 0.2% per annum of the then
unpaid principal balance of such  pool of mortgage loans  in the first month  of
the  life of such mortgage loans and an  additional 0.2% per annum in each month
thereafter (for example,  0.4% per  annum in the  second month)  until the  30th
month.  Beginning in the 30th month and in each month thereafter during the life
of such mortgage loans, 100%  SPA assumes a constant  prepayment rate of 6%  per
annum.  Multiples  may be  calculated from  this  prepayment rate  sequence. For
example,    % SPA assumes prepayment rates will be     % per annum in month one,
    % per annum in month two, and increasing by      % in each succeeding  month
until  reaching a rate of     %  per annum in month 30 and remaining constant at
    % per annum thereafter. 0% SPA assumes no prepayments. There is no assurance
that prepayments will occur at any SPA rate or at any other constant rate.
 
OPTIONAL PURCHASE OF DEFAULTED LOANS
 
     The Master Servicer may,  at its option, purchase  from the Trust Fund  any
Mortgage  Loan  which is  delinquent in  payment by  91 days  or more.  Any such
purchase shall be at a  price equal to 100% of  the Stated Principal Balance  of
such   Mortgage   Loan  plus   accrued  interest   thereon  at   the  applicable
 
                                      S-27
 

<PAGE>
<PAGE>
Mortgage Rate from the date through which interest was last paid by the  related
mortgagor  or advanced  (and not reimbursed)  to the  first day of  the month in
which such amount is to be distributed.
 
OPTIONAL TERMINATION
 
     The Master  Servicer  will  have  the right  to  repurchase  all  remaining
Mortgage  Loans and REO Properties in the Mortgage Pool and thereby effect early
retirement of the Certificates,  subject to the Pool  Principal Balance of  such
Mortgage  Loans and REO Properties at the  time of repurchase being less than or
equal to 10% of the Cut-off Date Pool Principal Balance. In the event the Master
Servicer exercises such option, the  purchase price distributed with respect  to
each Certificate will be 100% of its then outstanding principal balance plus any
Class  PO Deferred Amounts in the case of  the Class PO Certificates and, in the
case of an interest bearing Certificate, any unpaid accrued interest thereon  at
the  applicable Pass-Through Rate (in each case subject to reduction as provided
in the Agreement if the purchase price  is based in part on the appraised  value
of any REO Properties and such appraised value is less than the Stated Principal
Balance  of the  related Mortgage Loans).  Distributions on  the Certificates in
respect of  any such  optional termination  will  first be  paid to  the  Senior
Certificates  and then to  the Subordinated Certificates.  The proceeds from any
such distribution may not be sufficient  to distribute the full amount to  which
each Class of Certificates is entitled if the purchase price is based in part on
the  appraised value of any  REO Property and such  appraised value is less than
the Stated Principal Balance of the related Mortgage Loan.
 
THE TRUSTEE
 
     The Bank of New York will be the Trustee under the Agreement. The Depositor
and the Master Servicer may maintain other banking relationships in the ordinary
course of  business with  The Bank  of  New York.  Offered Certificates  may  be
surrendered  at the Corporate Trust Office of the Trustee located at 101 Barclay
Street, 12W, New York, New York 10286, Attention: Corporate Trust Administration
or at such other addresses as the Trustee may designate from time to time.
 
RESTRICTIONS ON TRANSFER OF THE CLASS A-R CERTIFICATES
 
     The Class A-R Certificates will be subject to the restrictions on  transfer
described    in   the    Prospectus   under   'Certain    Federal   Income   Tax
Consequences -- REMIC Certificates --  Tax-Related Restrictions on Transfers  of
Residual  Certificates -- Disqualified Organizations,' ' -- Noneconomic Residual
Interests' and ' --  Foreign Investors.' The Agreement  provides that the  Class
A-R  Certificates (in addition to certain other Classes of Certificates) may not
be acquired by an ERISA Plan. See 'ERISA Considerations' herein. Each Class  A-R
Certificate will contain a legend describing the foregoing restrictions.
 
                 YIELD, PREPAYMENT AND MATURITY CONSIDERATIONS
 
GENERAL
 
     The  effective yield  to the holders  of the  interest bearing Certificates
will be lower than the yield otherwise produced by the applicable rate at  which
interest  is  passed through  to such  holders  and the  purchase price  of such
Certificates because monthly distributions will  not be payable to such  holders
until the     day (or, if such day is not a business day, the following business
day)  of the month following the month in which interest accrues on the Mortgage
Loans (without any additional  distribution of interest  or earnings thereon  in
respect of such delay).
 
     Delinquencies  on the Mortgage Loans which are not advanced by or on behalf
of the Master Servicer (because amounts, if advanced, would be  nonrecoverable),
will  adversely affect the yield on the Certificates. Because of the priority of
distributions, shortfalls resulting from delinquencies  not so advanced will  be
borne  first by  the Subordinated  Certificates, in  the reverse  order of their
numerical Class designations,  and then  by the  Senior Certificates.  If, as  a
result  of such shortfalls,  the aggregate of the  Class Certificate Balances of
all Classes  of  Certificates exceeds  the  Pool Principal  Balance,  the  Class
 
                                      S-28
 

<PAGE>
<PAGE>
Certificate  Balance of the Class  of Subordinated Certificates then outstanding
with the highest numerical  Class designation will be  reduced by the amount  of
such excess.
 
     Net  Interest Shortfalls  will adversely affect  the yields  on the Offered
Certificates. In addition, although  all losses initially will  be borne by  the
Subordinated  Certificates,  in  the  reverse  order  of  their  numerical Class
designations (either directly or  through distributions in  respect of Class  PO
Deferred  Amounts on the Class PO Certificates),  Excess Losses will be borne by
all Classes of Certificates (other than  the Notional Amount Certificates) on  a
pro  rata basis. Moreover, since  the Subordinated Principal Distribution Amount
for each Distribution Date will be reduced by the amount of any distributions on
such Distribution  Date in  respect of  Class PO  Deferred Amounts,  the  amount
distributable  as  principal on  each such  Distribution Date  to each  Class of
Subordinated Certificates then entitled to  a distribution of principal will  be
less  than  it otherwise  would  be in  the absence  of  such Class  PO Deferred
Amounts. As a result, the yields on the Offered Certificates will depend on  the
rate and timing of Realized Losses, including Excess Losses. Excess Losses could
occur  at a time when one or more Classes of Subordinated Certificates are still
outstanding and otherwise available to absorb other types of Realized Losses.
 
PREPAYMENT CONSIDERATIONS AND RISKS
 
     The rate of principal payments  on the Offered Certificates, the  aggregate
amount of distributions on the Offered Certificates and the yield to maturity of
the  Offered Certificates will be related to  the rate and timing of payments of
principal on the Mortgage Loans. The rate of principal payments on the  Mortgage
Loans  will in turn  be affected by  the amortization schedules  of the Mortgage
Loans and  by the  rate of  principal prepayments  (including for  this  purpose
prepayments  resulting from refinancing, liquidations  of the Mortgage Loans due
to defaults, casualties, condemnations and  repurchases by the Seller or  Master
Servicer).  The Mortgage  Loans may  be prepaid  by the  Mortgagors at  any time
without  a  prepayment  penalty.   The  Mortgage  Loans   are  subject  to   the
'due-on-sale' provisions included therein. See 'The Mortgage Pool' herein.
 
     Prepayments,  liquidations and  purchases of the  Mortgage Loans (including
any optional purchase by  the Master Servicer of  a defaulted Mortgage Loan  and
any  optional repurchase of the remaining  Mortgage Loans in connection with the
termination of the Trust Fund, in each case as described herein) will result  in
distributions  on  the Offered  Certificates  of principal  amounts  which would
otherwise be distributed over the remaining  terms of the Mortgage Loans.  Since
the  rate of payment  of principal of  the Mortgage Loans  will depend on future
events and a variety of  factors, no assurance can be  given as to such rate  or
the  rate of principal prepayments. The extent to which the yield to maturity of
a Class of Offered Certificates may vary from the anticipated yield will  depend
upon  the degree to which such Offered Certificate is purchased at a discount or
premium, and the degree to which the timing of payments thereon is sensitive  to
prepayments,  liquidations  and purchases  of  the Mortgage  Loans.  Further, an
investor should  consider the  risk that,  in  the case  of the  Principal  Only
Certificates and any other Offered Certificate purchased at a discount, a slower
than  anticipated  rate of  principal  payments (including  prepayments)  on the
Mortgage Loans could result in  an actual yield to  such investor that is  lower
than  the anticipated yield and,  in the case of  the Interest Only Certificates
and any  other  Offered  Certificate  purchased at  a  premium,  a  faster  than
anticipated  rate of principal payments could result  in an actual yield to such
investor that is  lower than the  anticipated yield. Investors  in the  Interest
Only  Certificates  should carefully  consider  the risk  that  a rapid  rate of
principal payments on  the Mortgage Loans  could result in  the failure of  such
investors to recover their initial investments.
 
     The rate of principal payments (including prepayments) on pools of mortgage
loans  may vary  signifiantly over time  and may  be influenced by  a variety of
economic, geographic, social and other factors, including changes in mortgagors'
housing needs,  job  transfers,  unemployment, mortgagors'  net  equity  in  the
mortgaged   properties  and  servicing  decisions.  In  addition,  Countrywide's
Streamlined Documentation  Program may  affect the  rate of  prepayments on  the
Mortgage   Loans.  In  general,  if  prevailing  interest  rates  were  to  fall
significantly below the Mortgage Rates on the Mortgage Loans, the Mortgage Loans
could be subject to  higher prepayment rates than  if prevailing interest  rates
were to remain at or above the Mortgage Rates on the Mortgage Loans. Conversely,
if prevailing interest rates were to rise significantly, the rate of prepayments
on the Mortgage Loans would generally be expected to decrease. No assurances can
be  given as  to the  rate of  prepayments on  the Mortgage  Loans in  stable or
changing interest rate environments.
 
                                      S-29
 

<PAGE>
<PAGE>
     As described herein under 'Description  of the Certificates --  Principal,'
the  Senior Prepayment  Percentage of  the applicable  Non-PO Percentage  of all
principal prepayments will  be initially  distributed to the  Classes of  Senior
Certificates  (other than  the Class PO  Certificates) then  entitled to receive
principal  prepayment   distributions.   This   may  result   in   all   (or   a
disproportionate  percentage) of such principal prepayments being distributed to
holders of such Classes of Senior Certificates and none (or less than their  pro
rata  share) of such  principal prepayments being distributed  to holders of the
Subordinated Certificates during the periods of time described in the definition
of 'Senior Prepayment Percentage.'
 
     The timing of changes in the rate of prepayments on the Mortgage Loans  may
significantly affect an investor's actual yield to maturity, even if the average
rate  of principal  payments is  consistent with  an investor's  expectation. In
general, the  earlier a  prepayment  of principal  on  the Mortgage  Loans,  the
greater  the  effect  on an  investor's  yield  to maturity.  The  effect  on an
investor's yield as a  result of principal payments  occurring at a rate  higher
(or  lower)  than  the  rate  anticipated  by  the  investor  during  the period
immediately following the issuance of the Offered Certificates may not be offset
by a subsequent like decrease (or increase) in the rate of principal payments.
 
     The tables below  indicate the  sensitivity of the  pre-tax corporate  bond
equivalent  yields to  maturity of  certain Classes  of Certificates  to various
constant percentages of SPA. The yields set forth in the tables were  calculated
by  determining the  monthly discount  rates that,  when applied  to the assumed
streams of cash  flows to  be paid on  the applicable  Classes of  Certificates,
would  cause the discounted present value of  such assumed streams of cash flows
to equal the assumed  aggregate purchase prices of  such Classes and  converting
such  monthly rates to corporate bond equivalent rates. Such calculations do not
take into  account variations  that may  occur in  the interest  rates at  which
investors  may be able  to reinvest funds  received by them  as distributions on
such Certificates and consequently do not  purport to reflect the return on  any
investment  in any  such Class of  Certificate when such  reinvestment rates are
considered.
 
SENSITIVITY OF THE INTEREST ONLY CERTIFICATES
 
     AS INDICATED IN  THE TABLE BELOW,  THE YIELD  TO INVESTORS IN  THE CLASS  X
CERTIFICATES  WILL BE  SENSITIVE TO  THE RATE  OF PRINCIPAL  PAYMENTS (INCLUDING
PREPAYMENTS) OF THE  NON-DISCOUNT MORTGAGE LOANS  (PARTICULARLY THOSE WITH  HIGH
NET MORTGAGE RATES), WHICH GENERALLY CAN BE PREPAID AT ANY TIME. ON THE BASIS OF
THE  ASSUMPTIONS  DESCRIBED  BELOW,  THE  YIELD  TO  MATURITY  ON  THE  CLASS  X
CERTIFICATES WOULD  BE  APPROXIMATELY 0%  IF  PREPAYMENTS  WERE TO  OCCUR  AT  A
CONSTANT  RATE OF APPROXIMATELY     % SPA. IF THE  ACTUAL PREPAYMENT RATE OF THE
NON-DISCOUNT MORTGAGE LOANS WERE TO EXCEED THE FOREGOING LEVEL FOR AS LITTLE  AS
ONE  MONTH WHILE EQUALING SUCH LEVEL FOR  THE REMAINING MONTHS, THE INVESTORS IN
THE CLASS X CERTIFICATES WOULD NOT FULLY RECOUP THEIR INITIAL INVESTMENTS.
 
     As described above under 'Description of the Certificates -- General,'  the
Pass-Through  Rate of the  Class X Certificates  in effect from  time to time is
calculated by reference to the Net  Mortgage Rates of the Non-Discount  Mortgage
Loans.  The Non-Discount Mortgage Loans will have higher Net Mortgage Rates (and
higher Mortgage Rates) than the other Mortgage Loans. In general, mortgage loans
with higher mortgage rates  tend to prepay at  higher rates than mortgage  loans
with  relatively lower mortgage  rates in response  to a given  change in market
interest rates.  As a  result, the  Non-Discount Mortgage  Loans may  prepay  at
higher  rates, thereby reducing the Pass-Through Rate and Notional Amount of the
Class X Certificates.
 
     The information set forth in the  following table has been prepared on  the
basis  of the  Structuring Assumptions and  on the assumption  that the purchase
price of the Class X Certificates (expressed as a percentage of initial Notional
Amount) is as follows:
 
<TABLE>
<CAPTION>
CLASS                                  PRICE*
- ------------------------------------   ------
<S>                                    <C>
Class X.............................        %
</TABLE>
 
- ------------
 
*  The price does not include accrued interest. Accrued interest has been  added
   to such price in calculating the yields set forth in the table below.
 
                                      S-30
 

<PAGE>
<PAGE>
          SENSITIVITY OF THE INTEREST ONLY CERTIFICATES TO PREPAYMENTS
                          (PRE-TAX YIELDS TO MATURITY)
 
<TABLE>
<CAPTION>
                                                   SPA PREPAYMENT ASSUMPTION
                                    --------------------------------------------------------
CLASS                                0%        %         %         %         %          %
- ---------------------------------   ----      ----      ----      ----      ----      ------
<S>                                 <C>       <C>       <C>       <C>       <C>       <C>
Class X..........................     %         %         %         %         %            %
</TABLE>
 
     It  is unlikely that the Non-Discount  Mortgage Loans will have the precise
characteristics described herein  or that the  Non-Discount Mortgage Loans  will
all  prepay at  the same  rate until  maturity or  that all  of the Non-Discount
Mortgage Loans  will prepay  at the  same rate  or time.  As a  result of  these
factors,  the pre-tax yields  on the Class  X Certificates are  likely to differ
from those shown in the table above, even if all of the Mortgage Loans prepay at
the indicated percentages  of SPA. No  representation is made  as to the  actual
rate  of principal  payments on the  Mortgage Loans  for any period  or over the
lives of  the  Class  X  Certificates  or  as  to  the  yield  on  the  Class  X
Certificates.  Investors must  make their  own decisions  as to  the appropriate
prepayment assumptions to be  used in deciding whether  to purchase the Class  X
Certificates.
 
SENSITIVITY OF THE PRINCIPAL ONLY CERTIFICATES
 
     THE  CLASS PO CERTIFICATES  WILL BE 'PRINCIPAL  ONLY' CERTIFICATES AND WILL
NOT BEAR INTEREST.  AS INDICATED IN  THE TABLE BELOW,  A LOWER THAN  ANTICIPATED
RATE  OF  PRINCIPAL PAYMENTS  (INCLUDING PREPAYMENTS)  ON THE  DISCOUNT MORTGAGE
LOANS WILL HAVE A  NEGATIVE EFFECT ON  THE YIELD TO  INVESTORS IN THE  PRINCIPAL
ONLY CERTIFICATES.
 
     As  described above under  'Description of the  Certificates -- Principal,'
the Class PO  Principal Distribution Amount  is calculated by  reference to  the
principal  payments (including prepayments) on  the Discount Mortgage Loans. The
Discount Mortgage Loans will have lower  Net Mortgage Rates (and lower  Mortgage
Rates)  than the  other Mortgage Loans.  In general, mortgage  loans with higher
mortgage rates  tend  to  prepay  at  higher  rates  than  mortgage  loans  with
relatively lower mortgage rates in response to a given change in market interest
rates.  As a  result, the  Discount Mortgage  Loans may  prepay at  lower rates,
thereby reducing the rate of payment of principal and the resulting yield of the
Class PO Certificates.
 
     The information set forth in the  following table has been prepared on  the
basis  of the Structuring  Assumptions and on the  assumption that the aggregate
purchase price of the Principal Only Certificates (expressed as a percentage  of
initial Class Certificate Balance) is as follows:
 
<TABLE>
<CAPTION>
CLASS                                  PRICE
- ------------------------------------   ------
<S>                                    <C>
Class PO............................       %
</TABLE>
 
         SENSITIVITY OF THE PRINCIPAL ONLY CERTIFICATES TO PREPAYMENTS
                          (PRE-TAX YIELDS TO MATURITY)
 
<TABLE>
<CAPTION>
                                                       SPA PREPAYMENT ASSUMPTION
                                            ------------------------------------------------
CLASS                                       0%       %        %        %        %        %
- -----------------------------------------   ---     ----     ----     ----     ----     ----
 
<S>                                         <C>     <C>      <C>      <C>      <C>      <C>
Class PO.................................     %       %        %        %        %        %
</TABLE>
 
     It  is  unlikely that  the Discount  Mortgage Loans  will have  the precise
characteristics described herein or  that the Discount  Mortgage Loans will  all
prepay  at the same  rate until maturity  or that all  of such Discount Mortgage
Loans will prepay at the  same rate or time. As  a result of these factors,  the
pre-tax  yield on the Principal Only Certificates is likely to differ from those
shown in  the table  above, even  if all  of the  Mortgage Loans  prepay at  the
indicated percentages of SPA. No representation is made as to the actual rate of
principal  payments on the Mortgage Loans for any period or over the life of the
Principal  Only  Certificates  or  as  to  the  yield  on  the  Principal   Only
Certificates.  Investors must  make their  own decisions  as to  the appropriate
prepayment assumptions to be used in deciding whether to purchase the  Principal
Only Certificates.
 
                                      S-31
 

<PAGE>
<PAGE>
ADDITIONAL INFORMATION
 
     The  Depositor intends  to file certain  additional yield  tables and other
computational materials  with respect  to one  or more  Classes of  Underwritten
Certificates with the Commission in a report on Form 8-K to be dated           ,
19  . Such tables and materials were prepared by each Underwriter at the request
of  certain  prospective  investors,  based  on  assumptions  provided  by,  and
satisfying the special requirements of, such prospective investors. Such  tables
and  assumptons may  be based  on assumptions  that differ  from the Structuring
Assumptions. Accordingly, such tables and other materials may not be relevant to
or appropriate for investors other than those specifially requesting them.
 
WEIGHTED AVERAGE LIVES OF THE OFFERED CERTIFICATES
 
     The weighted average life  of an Offered Certificate  is determined by  (a)
multiplying  the amount of the  net reduction, if any,  of the Class Certificate
Balance of such  Certificate on each  Distribution Date by  the number of  years
from the date of issuance to such Distribution Date, (b) summing the results and
(c)  dividing the  sum by the  aggregate amount  of the net  reductions in Class
Certificate Balance of such Certificate referred to in clause (a).
 
     For a discussion of  the factors which may  influence the rate of  payments
(including   prepayments)   of  the   Mortgage  Loans,   see  '   --  Prepayment
Considerations and Risks'  herein and 'Yield  and Prepayment Considerations'  in
the Prospectus.
 
     In  general, the weighted average lives of the Offered Certificates will be
shortened if  the  level of  prepayments  of  principal of  the  Mortgage  Loans
increases.  However, the weighted average lives of the Offered Certificates will
depend upon a variety of other factors, including the timing of changes in  such
rate  of  principal  payments  and the  priority  sequence  of  distributions of
principal of the Classes  of Certificates and the  distribution of principal  of
the  Planned Principal Classes and the  Targeted Principal Classes in accordance
with the  Principal  Balance Schedules  herein.  In particular,  if  the  amount
available  for distribution as principal of  the Senior Certificates (other than
the Class PO Certificates) on any Distribution Date exceeds the amount  required
to  reduce  the principal  balances  of the  Planned  Principal Classes  and the
Targeted Principal Classes then entitled to receive a distribution of  principal
to  their respective  scheduled balances as  set forth in  the Principal Balance
Schedules, such excess principal will be distributed on the remaining Classes of
Senior Certificates (other than the Class PO Certificates) on such  Distribution
Date.  Conversely, if the amount available  for distribution of principal of the
Senior Certificates (other than the  Class PO Certificates) on any  Distribution
Date is less than the amount so required to reduce the Planned Principal Classes
and  the Targeted Principal  Classes then entitled to  receive a distribution of
principal  to  their  respective  scheduled  balances,  no  principal  will   be
distributed  on such other  Classes of Senior  Certificates on such Distribution
Date. Accordingly,  the rate  of principal  payments on  the Mortgage  Loans  is
expected  to have a greater  effect on the weighted  average life of the Support
Classes and under certain  prepayment scenarios, the  weighted average lives  of
the  Targeted  Principal Classes,  than  on the  weighted  average lives  of the
Planned Principal Classes.
 
     The interaction  of the  foregoing factors  may have  different effects  on
various Classes of Offered Certificates and the effects on any Class may vary at
different  times during the life of such Class. Accordingly, no assurance can be
given as to  the weighted  average life of  any Class  of Offered  Certificates.
Further,  to  the  extent  the  prices  of  the  Offered  Certificates represent
discounts or premiums to their  respective original Class Certificate  Balances,
variability   in  the  weighted  average  lives   of  such  Classes  of  Offered
Certificates will result in variability in  the related yields to maturity.  For
an  example  of  how  the  weighted average  lives  of  the  Classes  of Offered
Certificates may be  affected at various  constant percentages of  SPA, see  the
Decrement Tables below.
 
                                      S-32





<PAGE>
<PAGE>
DECREMENT TABLES
 
     The  following  tables  indicate  the  percentages  of  the  initial  Class
Certificate Balances  of the  Classes of  Offered Certificates  (other than  the
Notional  Amount Certificates) that would be outstanding after each of the dates
shown at  various constant  percentages of  SPA and  the corresponding  weighted
average lives of such Classes. The tables have been prepared on the basis of the
Structuring  Assumptions. It is not likely that (i) the Mortgage Loans will have
the precise characteristics described herein or  (ii) all of the Mortgage  Loans
will  prepay at  a constant percentage  of SPA. Moreover,  the diverse remaining
terms to maturity of the Mortgage Loans could produce slower or faster principal
distributions than indicated in the tables,  which have been prepared using  the
specified constant percentages of SPA, even if the remaining term to maturity of
the  Mortgage Loans is  consistent with the  remaining terms to  maturity of the
Mortgage Loans specified in the Structuring Assumptions.
 
                      PERCENT OF INITIAL CLASS CERTIFICATE
                             BALANCES OUTSTANDING*
 
<TABLE>
<CAPTION>
                                            CLASS A-                                               CLASS
     DISTRIBUTION       ------------------------------------------------     -------------------------------------------------
         DATE           0%       %        %        %        %        %        0%       %        %        %        %        %
- ----------------------- ---     ----     ----     ----     ----     ----     ----     ----     ----     ----     ----     ----
<S>                     <C>     <C>      <C>      <C>      <C>      <C>      <C>      <C>      <C>      <C>      <C>      <C>
Initial................    %        %        %        %        %        %        %        %        %        %        %        %
     19 ...............
     19 ...............
     19 ...............
     20 ...............
     20 ...............
     20 ...............
     20 ...............
     20 ...............
     20 ...............
     20 ...............
     20 ...............
     20 ...............
     20 ...............
     20 ...............
     20 ...............
     20 ...............
     20 ...............
     20 ...............
     20 ...............
     20 ...............
     20 ...............
     20 ...............
     20 ...............
     20 ...............
     20 ...............
     20 ...............
     20 ...............
     20 ...............
     20 ...............
     20 ...............
     20 ...............
                        ---     ----     ----     ----     ----     ----     ----     ----     ----     ----     ----     ----
Weighted Average Life
 (in years)**..........
</TABLE>
 
- ------------
 
 * Rounded to the nearest whole percentage.
 
** Determined  as  specified  under  'Weighted  Average  Lives  of  the  Offered
Certificates' herein.
 
                                      S-33




<PAGE>
<PAGE>
LAST SCHEDULED DISTRIBUTION DATE
 
     The Last Scheduled Distribution Date for each Class of Offered Certificates
is  the Distribution Date in      , 20  ,  which is the Distribution Date in the
          month following  the latest  scheduled maturity  date for  any of  the
Mortgage  Loans.  Since the  rate  of distributions  in  reduction of  the Class
Certificate Balance or  Notional Amount  of each Class  of Offered  Certificates
will  depend  on the  rate of  payment (including  prepayments) of  the Mortgage
Loans, the Class Certificate Balance or Notional Amount of any such Class  could
be  reduced  to zero  significantly  earlier or  later  than the  Last Scheduled
Distribution Date. The  rate of payments  on the Mortgage  Loans will depend  on
their  particular characteristics, as well as  on prevailing interest rates from
time to time and other economic factors, and no assurance can be given as to the
actual payment  experience of  the Mortgage  Loans. See  'Yield, Prepayment  and
Maturity   Considerations   --   Prepayment   Considerations   and   Risks'  and
' -- Weighted Average Lives of  the Offered Certificates' herein and 'Yield  and
Prepayment Considerations' in the Prospectus.
 
THE SUBORDINATED CERTIFICATES
 
     The   weighted  average  life  of,  and  the  yield  to  maturity  on,  the
Subordinated  Certificates,  in  increasing  order  of  their  numerical   Class
designation,  will be  progressively more  sensitive to  the rate  and timing of
mortgagor defaults and the severity of ensuing losses on the Mortgage Loans.  If
the  actual rate  and severity of  losses on  the Mortgage Loans  is higher than
those assumed by  a holder of  a Subordinated Certificate,  the actual yield  to
maturity of such Certificate may be lower than the yield expected by such holder
based  on such  assumption. The  timing of  losses on  Mortgage Loans  will also
affect an investor's actual yield to maturity, even if the rate of defaults  and
severity  of losses over  the life of  the Mortgage Pool  are consistent with an
investor's expectations. In general, the earlier a loss occurs, the greater  the
effect on an investor's yield to maturity. Realized Losses on the Mortgage Loans
will   reduce  the  Class  Certificate  Balances  of  the  applicable  Class  of
Subordinated Certificates  to the  extent of  any losses  allocated thereto  (as
described  under  'Description of  the Certificates  -- Allocation  of Losses'),
without the  receipt  of  cash  attributable to  such  reduction.  In  addition,
shortfalls  in cash available for distributions on the Subordinated Certificates
will result in  a reduction in  the Class  Certificate Balance of  the Class  of
Subordinated  Certificates  then outstanding  with  the highest  numerical Class
designation if and  to the extent  that the aggregate  of the Class  Certificate
Balances  of all  Classes of Certificates,  following all  distributions and the
allocation of Realized Losses on a Distribution Date, exceeds the Pool Principal
Balance as of the Due Date occurring in the month of such Distribution Date.  As
a  result  of  such reductions,  less  interest  will accrue  on  such  Class of
Subordinated Certificates  than  otherwise  would  be the  case.  The  yield  to
maturity  of  the  Subordinated  Certificates  will  also  be  affected  by  the
disproportionate allocation of principal prepayments to the Senior Certificates,
Net  Interest  Shortfalls,  other  cash   shortfalls  in  Available  Funds   and
distribution  of funds  to Class  PO Certificateholders  otherwise available for
distribution on the Subordinated Certificates to the extent of reimbursement for
Class PO Deferred Amounts. See 'Description of the Certificates -- Allocation of
Losses' herein.
 
     If on any Distribution Date,  the Applicable Credit Support Percentage  for
any  Class of  Subordinated Certificates  is less  than its  Original Applicable
Credit Support  Percentage,  all  partial principal  prepayments  and  principal
prepayments  in full available for distribution on the Subordinated Certificates
will be allocated  solely to such  Class and all  other Classes of  Subordinated
Certificates  with lower numerical Class  designations, thereby accelerating the
amortization thereof relative to that of the Restricted Classes and reducing the
weighted average lives  of such Classes  of Subordinated Certificates  receiving
such distributions. Accelerating the amortization of the Classes of Subordinated
Certificates  with  lower numerical  Class  designations relative  to  the other
Classes of Subordinated Certificates is intended to preserve the availability of
the subordination provided by such other Classes.
 
                                      S-34
 

<PAGE>
<PAGE>
                               CREDIT ENHANCEMENT
 
SUBORDINATION OF CERTAIN CLASSES
 
     The rights  of the  holders  of the  Subordinated Certificates  to  receive
distributions  with respect to  the Mortgage Loans will  be subordinated to such
rights of the holders of the Senior  Certificates and the rights of the  holders
of   each  Class  of  Subordinated  Certificates   (other  than  the  Class  B-1
Certificates) to receive such distributions will be further subordinated to such
rights of the Class or Classes of Subordinated Certificates with lower numerical
Class designations,  in each  case  only to  the  extent described  herein.  The
subordination  of the Subordinated  Certificates to the  Senior Certificates and
the subordination  of  the  Classes of  Subordinated  Certificates  with  higher
numerical Class designations to those with lower numerical Class designations is
intended  to increase  the likelihood  of receipt,  respectively, by  the Senior
Certificateholders and  the  holders  of Subordinated  Certificates  with  lower
numerical Class designations of the maximum amount to which they are entitled on
any  Distribution Date and  to provide such  holders protection against Realized
Losses, other than  Excess Losses.  In addition,  the Subordinated  Certificates
will provide limited protection against Special Hazard Losses, Bankruptcy Losses
and  Fraud Losses up to the Special Hazard Loss Coverage Amount, Bankruptcy Loss
Coverage Amount  and  Fraud Loss  Coverage  Amount, respectively,  as  described
below.  The applicable Non-PO  Percentage of Realized  Losses, other than Excess
Losses, will  be  allocated  to  the Class  of  Subordinated  Certificates  then
outstanding with the highest numerical Class designation. In addition, the Class
Certificate  Balance of such Class of  Subordinated Certificates will be reduced
by the amount of distributions on the Class PO Certificates in reimbursement for
Class PO Deferred Amounts.
 
     The Subordinated  Certificates  will  provide  limited  protection  to  the
Classes  of Certificates of higher relative  priority against (i) Special Hazard
Losses in an initial amount expected to be up to approximately  $           (the
'Special  Hazard Loss  Coverage Amount'), (ii)  Bankruptcy Losses  in an initial
amount expected to  be up  to approximately  $            (the 'Bankruptcy  Loss
Coverage  Amount') and (iii) Fraud Losses in an initial amount expected to be up
to approximately $          (the 'Fraud Loss Coverage Amount').
 
     The Special Hazard Loss Coverage Amount will be reduced, from time to time,
to be an amount equal on any Distribution Date to the lesser of (a) the greatest
of (i) 1% of the aggregate of the principal balances of the Mortgage Loans, (ii)
twice the principal balance of the largest Mortgage Loan and (iii) the aggregate
principal balances of the Mortgage Loans secured by Mortgaged Properties located
in the  single California  postal zip  code area  having the  highest  aggregate
principal  balance of  any such zip  code area  and (b) the  Special Hazard Loss
Coverage Amount  as of  the Closing  Date less  the amount,  if any,  of  losses
attributable  to Special Hazard Mortgage Loans  incurred since the Closing Date.
All principal balances for the purpose of this definition will be calculated  as
of  the first  day of  the month preceding  such Distribution  Date after giving
effect to scheduled installments of principal and interest on the Mortgage Loans
then due, whether or not paid.
 
     The Fraud Loss Coverage Amount will be  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, third  and fourth  anniversaries of the
Cut-off Date, to an  amount equal to the  lesser of (i) 1%  of the then  current
Pool  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 to the Certificates since such preceding anniversary and
(b) on the fifth anniversary of the Cut-off Date, to zero.
 
     The Bankruptcy Loss Coverage Amount will be reduced, from time to time,  by
the amount of Bankruptcy Losses allocated to the Certificates.
 
     The  amount  of  coverage  provided by  the  Subordinated  Certificates for
Special Hazard Losses, Bankruptcy  Losses and Fraud Losses  may be cancelled  or
reduced  from time to time for each of the risks covered, provided that the then
current ratings of  the Certificates  assigned by  the Rating  Agencies are  not
adversely  affected  thereby  without regard  to  the guaranty  provided  by the
Policy. In addition, a reserve fund or  other form of credit enhancement may  be
substituted  for the  protection provided  by the  Subordinated Certificates for
Special Hazard Losses, Bankruptcy Losses and Fraud Losses.
 
                                      S-35
 

<PAGE>
<PAGE>
     As used herein, a 'Deficient Valuation' is a bankruptcy proceeding  whereby
the  bankruptcy court may  establish the value  of the Mortgaged  Property at an
amount less than  the then outstanding  principal balance of  the Mortgage  Loan
secured  by  such Mortgaged  Property or  may  reduce the  outstanding principal
balance of a  Mortgage Loan.  In the case  of a  reduction in the  value of  the
related  Mortgaged Property, the amount of the  secured debt could be reduced to
such value, and the holder of such Mortgage Loan thus would become an  unsecured
creditor  to the extent the outstanding  principal balance of such Mortgage Loan
exceeds the value so assigned to the Mortgaged Property by the bankruptcy court.
In addition, certain  other modifications of  the terms of  a Mortgage Loan  can
result  from a bankruptcy  proceeding, including the  reduction (a 'Debt Service
Reduction') of the amount of the  monthly payment on the related Mortgage  Loan.
Notwithstanding  the foregoing,  no such occurrence  shall be  considered a Debt
Service Reduction  or Deficient  Valuation so  long as  the Master  Servicer  is
pursuing  any other remedies that  may be available with  respect to the related
Mortgage Loan and  (i) such  Mortgage Loan  is not  in default  with respect  to
payment  due  thereunder or  (ii) scheduled  monthly  payments of  principal and
interest are being advanced by the Master Servicer without giving effect to  any
Debt Service Reduction or Deficient Valuation.
 
                                USE OF PROCEEDS
 
     The  Depositor will apply the net proceeds  of the sale of the Certificates
against the purchase price of the Mortgage Loans.
 
                    CERTAIN FEDERAL INCOME TAX CONSEQUENCES
 
     For federal income tax purposes, the Trust Fund will include two segregated
asset pools, with respect  to which elections  will be made to  treat each as  a
separate   REMIC.  One  REMIC  (the   'Subsidiary  REMIC')  will  issue  several
uncertificated subclasses  of  nonvoting interests  ('Subsidiary  REMIC  Regular
Interests'), which will be designated as the regular interests in the Subsidiary
REMIC. The assets of the Subsidiary REMIC will consist of the Mortgage Loans and
all  other property in the Trust Fund except  for the property in the Trust Fund
allocated to the second REMIC (the 'Master REMIC'). The Master REMIC will  issue
the  Regular Certificates, which will be  designated as the regular interests in
the Master  REMIC. The  Class  A-R Certificates  will represent  the  beneficial
ownership  of the  residual interest  in the  Subsidiary REMIC  and the residual
interest in the Master REMIC. The assets of the Master REMIC will consist of the
Subsidiary REMIC Regular  Interests. Aggregate distributions  on the  Subsidiary
REMIC  Regular Interests will  equal the aggregate  distributions on the Regular
Certificates  issued   by   the   Master  REMIC.   See   'Description   of   the
Certificates -- Separate REMIC Structure' herein.
 
     The  Regular  Certificates generally  will be  treated as  debt instruments
issued by  the Master  REMIC for  federal  income tax  purposes. Income  on  the
Regular Certificates must be reported under an accrual method of accounting.
 
     The  Principal Only  Certificates will  be treated  for federal  income tax
purposes as having been issued with an amount of Original Issue Discount ('OID')
equal to the difference between their  principal balance and their issue  price.
Although the tax treatment is not entirely certain, Notional Amount Certificates
will  be treated as having been issued  with OID for federal income tax purposes
equal to the excess  of all expected payments  of interest on such  Certificates
over  their  issue  price.  Although  unclear, a  holder  of  a  Notional Amount
Certificate may be entitled to  deduct a loss to  the extent that its  remaining
basis   exceeds  the   maximum  amount   of  future   payments  to   which  such
Certificateholder would be entitled if there were no further prepayments of  the
Mortgage  Loans.  The remaining  Classes of  Regular Certificates,  depending on
their respective issue  prices (as  described in the  Prospectus under  'Certain
Federal Income Tax Consequences'), may be treated as having been issued with OID
for federal income tax purposes. For purposes of determining the amount and rate
of  accrual of OID  and market discount,  the Trust Fund  intends to assume that
there will be prepayments on the Mortgage Loans at a rate equal to    % SPA (the
'Prepayment Assumption'). No representation is  made as to whether the  Mortgage
Loans  will  prepay  at  the  foregoing rate  or  any  other  rate.  See 'Yield,
Prepayment and Maturity Considerations' herein  and 'Certain Federal Income  Tax
Consequences'  in  the  Prospectus.  Computing accruals  of  OID  in  the manner
described in the Prospectus may (depending
 
                                      S-36
 

<PAGE>
<PAGE>
on the  actual rate  of prepayments  during the  accrual period)  result in  the
accrual  of negative amounts  of OID on  the Certificates issued  with OID in an
accrual period. Holders will be entitled to offset negative accruals of OID only
against future OID accrual on such Certificates.
 
     If the holders  of any  Regular Certificates  are treated  as holding  such
Certificates  at  a  premium, such  holders  should consult  their  tax advisors
regarding the election to amortize bond premium and the method to be employed.
 
     As is described more fully under 'Certain Federal Income Tax  Consequences'
in  the Prospectus,  the Offered  Certificates will  represent qualifying assets
under Sections  593(d), 856(c)(5)(A)  and 7701(a)(19)(C)  of the  Code, and  net
interest  income attributable to  the Offered Certificates  will be 'interest on
obligations secured by mortgages on real property' within the meaning of Section
856(c)(3)(B) of the Code, to the extent the assets of the Trust Fund are  assets
described  in such sections. The  Regular Certificates will represent qualifying
assets under Section  860G(a)(3) if acquired  by a REMIC  within the  prescribed
time periods of the Code.
 
     The holders of the Residual Certificates must include the taxable income of
each  REMIC in their federal taxable income.  The resulting tax liability of the
holders may exceed cash  distributions to such  holders during certain  periods.
All or a portion of the taxable income from a Residual Certificate recognized by
a  holder  may  be treated  as  'excess  inclusion' income,  which  with limited
exceptions, is subject to U.S federal income tax.
 
     Prospective purchasers of a Residual Certificate should consider  carefully
the  tax consequences of an investment in Residual Certificates discussed in the
Prospectus and  should consult  their own  tax advisors  with respect  to  those
consequences.   See   'Certain  Federal   Income   Tax  Consequences   --  REMIC
Certificates --  b.  Residual  Certificates' in  the  Prospectus.  Specifically,
prospective  holders of Residual Certificates  should consult their tax advisors
regarding whether, at the  time of acquisition, a  Residual Certificate will  be
treated as a 'noneconomic' residual interest, a 'non-significant value' residual
interest and a 'tax avoidance potential' residual interest. See 'Certain Federal
Income  Tax  Consequences --  Tax-Related Restrictions  on Transfer  of Residual
Certificates -- Noneconomic Residual Certificates -- Residual
Certificates --  Mark  to  Market  Rules  --  Residual  Certificates  --  Excess
Inclusions   and   --  Tax-Related   Restrictions   on  Transfers   of  Residual
Certificates  --  Foreign  Investors'  in  the  Prospectus.  Additionally,   for
information  regarding Prohibited Transactions and Treatment of Realized Losses,
see 'Certain  Federal Income  Tax Consequences  -- Prohibited  Transactions  and
Other Taxes' and ' -- REMIC Certificates -- a. Regular Certificates -- Treatment
of Realized Losses' in the Prospectus.
 
                              ERISA CONSIDERATIONS
 
     Any  Plan fiduciary which  proposes to cause  a Plan (as  defined below) to
acquire any of  the Offered Certificates  should consult with  its counsel  with
respect  to  the potential  consequences  under the  Employee  Retirement Income
Security Act  of 1974,  as amended  ('ERISA')  and/or the  Code, of  the  Plan's
acquisition  and ownership of  such Certificates. See  'ERISA Considerations' in
the Prospectus.  Section  406 of  ERISA  prohibits 'parties  in  interest'  with
respect  to an  employee benefit  plan subject  to ERISA  and/or the  excise tax
provisions set forth under Section 4975 of the Code (a 'Plan') from engaging  in
certain  transactions involving such  Plan and its assets  unless a statutory or
administrative exemption applies to  the transaction. Section  4975 of the  Code
imposes  certain  excise taxes  on prohibited  transactions involving  Plans and
other  arrangements  (including,  but  not  limited  to,  individual  retirement
accounts) described under that Section; ERISA authorizes the imposition of civil
penalties  for  prohibited  transactions  involving  Plans  not  subject  to the
requirements of Section 4975 of the Code.
 
     Certain employee benefit  plans, including governmental  plans and  certain
church  plans, are not  subject to ERISA's  requirements. Accordingly, assets of
such plans may  be invested in  the Offered Certificates  without regard to  the
ERISA  considerations described  herein and  in the  Prospectus, subject  to the
provisions of other  applicable federal  and state law.  Any such  plan that  is
qualified  and exempt from taxation under Sections 401(a) and 501(a) of the Code
may nonetheless be  subject to  the prohibited  transaction rules  set forth  in
Section 503 of the Code.
 
     Except  as noted above, investments by Plans are subject to ERISA's general
fiduciary requirements,  including the  requirement of  investment prudence  and
diversification and the requirement that a Plan's
 
                                      S-37
 

<PAGE>
<PAGE>
investments  be  made in  accordance with  the documents  governing the  Plan. A
fiduciary  that  decides  to  invest  the  assets  of  a  Plan  in  the  Offered
Certificates  should consider, among  other factors, the  extreme sensitivity of
the investment to the rate of principal payments (including prepayments) on  the
Mortgage Loans.
 
     The  U.S.  Department of  Labor  has granted  an  individual administrative
exemption to                                            (Prohibited  Transaction
Exemption       , Exemption Application No. D-      ,   Fed. Reg.        (     )
(                                       ) (the 'Exemption') from certain of  the
prohibited  transaction rules of ERISA and  the related excise tax provisions of
Section 4975 of the Code with respect  to the initial purchase, the holding  and
the  subsequent  resale by  Plans of  certificates  in pass-through  trusts that
consist of  certain  receivables, loans  and  other obligations  that  meet  the
conditions  and requirements of the Exemption. The Exemption applies to mortgage
loans such as the Mortgage Loans in the Trust Fund.
 
     For a general description of the Exemption and the conditions that must  be
satisfied  for  the  Exemption  to  apply,  see  'ERISA  Considerations'  in the
Prospectus.
 
     It is expected that the Exemption will apply to the acquisition and holding
by Plans of the Senior Certificates (other than the Class   , Class PO, Class  X
and  Class A-R Certificates) and that all conditions of the Exemption other than
those within the control of  the investors will be met.  In addition, as of  the
date  hereof, there is no  single Mortgagor that is  the obligor on five percent
(5%) of the Mortgage Loans included  in the Trust Fund by aggregate  unamortized
principal  balance of the assets of the Trust  Fund. BECAUSE THE CLASS   , CLASS
PO AND CLASS X CERTIFICATES ARE NOT BEING PURCHASED BY EITHER UNDERWRITER,  SUCH
CLASSES  OF CERTIFICATES DO NOT CURRENTLY MEET THE REQUIREMENTS OF THE EXEMPTION
OR  ANY  COMPARABLE  INDIVIDUAL  ADMINISTRATIVE  EXEMPTION  GRANTED  TO   EITHER
UNDERWRITER.  CONSEQUENTLY, THE SALE OR  EXCHANGE OF THE CLASS    , CLASS PO AND
CLASS X CERTIFICATES MAY  BE MADE ONLY  UNDER THE CONDITIONS  SET FORTH FOR  THE
CLASS B-  , CLASS B-  AND CLASS B-  CERTIFICATES BELOW.
 
     BECAUSE  THE CHARACTERISTICS OF THE CLASS  B-  , CLASS B-   , CLASS B-  AND
CLASS A-R CERTIFICATES MAY NOT MEET THE REQUIREMENTS OF PTCE 83-1, THE EXEMPTION
OR ANY OTHER ISSUED EXEMPTION UNDER ERISA, THE PURCHASE AND HOLDING OF THE CLASS
B- , CLASS B- , CLASS B- AND  CLASS A-R CERTIFICATES BY A PLAN OR BY  INDIVIDUAL
RETIREMENT  ACCOUNTS OR  OTHER PLANS  SUBJECT TO  SECTION 4975  OF THE  CODE MAY
RESULT IN PROHIBITED  TRANSACTIONS OR THE  IMPOSITION OF EXCISE  TAXES OR  CIVIL
PENALTIES.  CONSEQUENTLY, TRANSFERS OF THE CLASS B-  , CLASS B-  , CLASS B-  AND
CLASS A-R CERTIFICATES WILL NOT BE REGISTERED BY THE TRUSTEE UNLESS THE  TRUSTEE
RECEIVES:  (I)  A  REPRESENTATION  FROM  THE  TRANSFEREE  OF  SUCH  CERTIFICATE,
ACCEPTABLE TO AND  IN FORM  AND SUBSTANCE SATISFACTORY  TO THE  TRUSTEE, TO  THE
EFFECT  THAT SUCH TRANSFEREE IS NOT AN  EMPLOYEE BENEFIT PLAN SUBJECT TO SECTION
406 OF ERISA OR A PLAN OR ARRANGEMENT SUBJECT TO SECTION 4975 OF THE CODE, NOR A
PERSON ACTING ON BEHALF OF ANY SUCH PLAN OR ARRANGEMENT NOR USING THE ASSETS  OF
ANY  SUCH PLAN OR ARRANGEMENT TO EFFECT  SUCH TRANSFER; (II) IF THE PURCHASER IS
AN INSURANCE  COMPANY,  A REPRESENTATION  THAT  THE PURCHASER  IS  AN  INSURANCE
COMPANY  WHICH  IS  PURCHASING  SUCH CERTIFICATES  WITH  FUNDS  CONTAINED  IN AN
'INSURANCE COMPANY GENERAL ACCOUNT' (AS SUCH TERM IS DEFINED IN SECTION V(e)  OF
PROHIBITED  TRANSACTION  CLASS  EXEMPTION  95-60 ('PTCE  95-60'))  AND  THAT THE
PURCHASE AND HOLDING OF SUCH CERTIFICATES ARE COVERED UNDER PTCE 95-60; OR (III)
AN OPINION OF COUNSEL SATISFACTORY TO  THE TRUSTEE THAT THE PURCHASE OR  HOLDING
OF  SUCH CERTIFICATE BY A PLAN,  ANY PERSON ACTING ON BEHALF  OF A PLAN OR USING
SUCH PLAN'S ASSETS, WILL NOT RESULT IN THE ASSETS OF THE TRUST FUND BEING DEEMED
TO BE 'PLAN ASSETS'  AND SUBJECT TO THE  PROHIBITED TRANSACTION REQUIREMENTS  OF
ERISA  AND  THE CODE  AND  WILL NOT  SUBJECT THE  TRUSTEE  TO ANY  OBLIGATION IN
ADDITION TO THOSE UNDERTAKEN IN THE AGREEMENT. SUCH REPRESENTATION AS  DESCRIBED
ABOVE  SHALL BE  DEEMED TO  HAVE BEEN  MADE TO  THE TRUSTEE  BY THE TRANSFEREE'S
ACCEPTANCE OF A CLASS B-   , CLASS B-   OR CLASS B-   CERTIFICATE. IN THE  EVENT
THAT  SUCH REPRESENTATION IS VIOLATED,  OR ANY ATTEMPT TO  TRANSFER TO A PLAN OR
PERSON ACTING ON  BEHALF OF  A PLAN  OR USING  SUCH PLAN'S  ASSETS IS  ATTEMPTED
WITHOUT SUCH OPINION OF COUNSEL, SUCH ATTEMPTED TRANSFER OR ACQUISITION SHALL BE
VOID AND OF NO EFFECT.
 
     Prospective  Plan  investors  should  consult  with  their  legal  advisors
concerning the impact  of ERISA  and the Code,  the applicability  of PTCE  83-1
described in the Prospectus and the Exemption, and the potential consequences in
their  specific  circumstances, prior  to  making an  investment  in any  of the
Offered Certificates.  Moreover, each  Plan fiduciary  should determine  whether
under   the   general   fiduciary   standards   of   investment   prudence   and
diversification, an investment in any of the Offered
 
                                      S-38
 

<PAGE>
<PAGE>
Certificates is  appropriate  for the  Plan,  taking into  account  the  overall
investment  policy  of the  Plan and  the composition  of the  Plan's investment
portfolio.
 
                             METHOD OF DISTRIBUTION
 
     Subject to the terms and conditions set forth in the Underwriting Agreement
between the Depositor and the Underwriters, the Depositor has agreed to sell  to
the Underwriters, and each Underwriter has agreed to purchase from the Depositor
the  respective Classes of Underwritten Certificates indicated on the cover page
hereof to be purchased by it. Distribution of the Underwritten Certificates will
be made  by the  respective  Underwriters in  each case  from  time to  time  in
negotiated  transactions or otherwise at varying  prices to be determined at the
time of sale. In connection with the sale of the Underwritten Certificates,  the
Underwriters  may be deemed to have  received compensation from the Depositor in
the form of underwriting discounts.
 
     Each Underwriter  intends to  make a  secondary market  in the  Classes  of
Underwritten  Certificates being  purchased by  it, but  no Underwriter  has any
obligation to do so. There can be  no assurance that a secondary market for  the
Offered  Certificates will develop or, if it does develop, that it will continue
or that it will provide Certificateholders with a sufficient level of  liquidity
of investment.
 
     The  Depositor has  agreed to indemnify  the Underwriters  against, or make
contributions  to  the  Underwriters  with  respect  to,  certain   liabilities,
including liabilities under the Securities Act of 1933, as amended.
 
     The  Class X and Class PO Certificates may be offered by the Depositor from
time to time  directly or through  underwriters or agents  (either of which  may
include  Countrywide Securities Corporation,  an affiliate of  the Depositor and
the Master Servicer) in  one or more negotiated  transactions, or otherwise,  at
varying  prices to be  determined at the time  of sale, in  one or more separate
transactions at prices to be  negotiated at the time  of each sale. Proceeds  to
the  Depositor from any sale of the Class  X or Class PO Certificates will equal
the purchase price paid by the purchaser thereof, net of any expenses payable by
the Depositor and any compensation payable to any such underwriter or agent. Any
underwriters or agents that  participate in the distribution  of the Class X  or
Class  PO Certificates may be deemed to  be 'underwriters' within the meaning of
the Securities Act of 1933  and any profit on the  sale of such Certificates  by
them  and any discounts, commissions, concessions or other compensation received
by any such underwriter or agent may be deemed to be underwriting discounts  and
commissions under such Act.
 
                                 LEGAL MATTERS
 
     The  validity  of the  Certificates, including  certain federal  income tax
consequences with respect  thereto, will  be passed  upon for  the Depositor  by
Brown  & Wood LLP, New York, New York.  Stroock & Stroock & Lavan, New York, New
York, will pass upon certain legal matters on behalf of the Underwriters.
 
                                    RATINGS
 
     It is a condition to the issuance  of the Senior Certificates that they  be
rated        by                               ('      ') and,       by
                ('     ' and, together with      , the 'Rating Agencies'). It is
a condition  to  the issuance  of  the Class  B-   ,  Class  B-   and  Class  B-
Certificates  that they be rated at  least     ,    and       , respectively, by
     .
 
     The ratings assigned by      to mortgage pass-through certificates  address
the  likelihood of the receipt of all distributions on the mortgage loans by the
related  certificateholders  under  the   agreements  pursuant  to  which   such
certificates  are issued.        's  ratings take into  consideration the credit
quality of the related  mortgage pool, including  any credit support  providers,
structural  and legal aspects associated with  such certificates, and the extent
to which  the payment  stream  on the  mortgage pool  is  adequate to  make  the
payments  required by such  certificates.       ratings  on such certificates do
not, however,  constitute a  statement regarding  frequency of  payments of  the
mortgage loans.
 
     The  ratings assigned by      to mortgage pass-through certificates address
the likelihood of the receipt of all distributions on the mortgage loans by  the
related   certificateholders  under  the  agreements   pursuant  to  which  such
certificates are issued.        's  ratings take into  consideration the  credit
quality of
 
                                      S-39
 

<PAGE>
<PAGE>
the  related mortgage pool,  including any credit  support providers, structural
and legal aspects associated with such certificates, and the extent to which the
payment stream on such  mortgage pool is adequate  to make payments required  by
such  certificates.         's  ratings  on such  certificates do  not, however,
constitute a  statement  regarding  frequency  of  prepayments  on  the  related
mortgage loans.
 
     The  ratings of the Rating Agencies do not address the possibility that, as
a result of principal prepayments,  Certificateholders may receive a lower  than
anticipated yield.
 
     The  security  ratings  assigned  to  the  Offered  Certificates  should be
evaluated independently from  similar ratings  on other types  of securities.  A
security  rating is not a recommendation to buy, sell or hold securities and may
be subject to revision or withdrawal at any time by the Rating Agencies.
 
     The Depositor has not requested a rating of the Offered Certificates by any
rating agency  other  than the  Rating  Agencies;  there can  be  no  assurance,
however,   as  to  whether  any  other  rating  agency  will  rate  the  Offered
Certificates or, if it does, what rating would be assigned by such other  rating
agency.  The  rating  assigned  by  such  other  rating  agency  to  the Offered
Certificates could be lower than the  respective ratings assigned by the  Rating
Agencies.
 
                                      S-40


<PAGE>
<PAGE>
   
                   SUBJECT TO COMPLETION, DATED JULY 18, 1996
    
 
PROSPECTUS
 
                                  CWMBS, INC.
                                   Depositor
                       Mortgage Pass-Through Certificates
                              (Issuable in Series)
                         ------------------------------
 
    This   Prospectus  relates   to  Mortgage   Pass-Through  Certificates  (the
'Certificates'), which may  be sold  from time  to time  in one  or more  Series
(each,  a 'Series') by CWMBS, Inc. (the  'Depositor') on terms determined at the
time of  sale  and described  in  this  Prospectus and  the  related  Prospectus
Supplement. The Certificates of a Series will evidence beneficial ownership of a
trust  fund (a 'Trust Fund'). As specified in the related Prospectus Supplement,
the Trust  Fund for  a  Series of  Certificates  will include  certain  mortgage
related  assets (the  'Mortgage Assets') consisting  of (i)  first lien mortgage
loans (or  participation  interests  therein) secured  by  one-  to  four-family
residential properties ('Mortgage Loans'), (ii) mortgage pass-through securities
(the  'Agency  Securities')  issued  or guaranteed  by  the  Government National
Mortgage  Association  ('GNMA'),  the  Federal  National  Mortgage   Association
('FNMA')  or  the  Federal Home  Loan  Mortgage Corporation  ('FHLMC')  or (iii)
Private Mortgage-Backed Securities (defined herein). The Mortgage Assets will be
acquired by  the Depositor,  either directly  or indirectly,  from one  or  more
institutions  (each, a 'Seller'), which may  be affiliates of the Depositor, and
conveyed by the  Depositor to  the related  Trust Fund.  A Trust  Fund also  may
include  insurance  policies,  cash accounts,  reinvestment  income, guaranties,
letters of  credit  or other  assets  to the  extent  described in  the  related
Prospectus Supplement.
 
    Each  Series of  Certificates will  be issued in  one or  more classes. Each
class of  Certificates of  a  Series will  evidence  beneficial ownership  of  a
specified  percentage (which may  be 0%) or portion  of future interest payments
and a specified  percentage (which  may be 0%)  or portion  of future  principal
payments  on  the  Mortgage  Assets  in the  related  Trust  Fund.  A  Series of
Certificates may include one or more classes that are senior in right of payment
to one or more other classes of Certificates of such Series. One or more classes
of Certificates  of  a  Series  may be  entitled  to  receive  distributions  of
principal,  interest  or any  combination  thereof prior  to  one or  more other
classes of Certificates  of such  Series or  after the  occurrence of  specified
events, in each case as specified in the related Prospectus Supplement.
 
    Distributions  to holders of Certificates (the 'Certificateholders') will be
made monthly, quarterly,  semi-annually or at  such other intervals  and on  the
dates  specified  in the  related  Prospectus Supplement.  Distributions  on the
Certificates of a Series will be made from the assets of the related Trust  Fund
or  Funds or other assets  pledged for the benefit  of the Certificateholders as
specified in the related Prospectus Supplement.
 
    The Certificates of  any Series  will not be  insured or  guaranteed by  any
governmental  agency or  instrumentality or,  unless otherwise  specified in the
related Prospectus Supplement, by any  other person. Unless otherwise  specified
in the related Prospectus Supplement, the only obligations of the Depositor with
respect  to a Series  of Certificates will be  to obtain certain representations
and warranties from each  Seller and to  assign to the  Trustee for the  related
Series   of   Certificates  the   Depositor's  rights   with  respect   to  such
representations and warranties. The principal obligations of the Master Servicer
named in the related Prospectus Supplement with respect to the related Series of
Certificates will be limited to obligations pursuant to certain  representations
and  warranties  and to  its  contractual servicing  obligations,  including any
obligation it may have to advance delinquent payments on the Mortgage Assets  in
the related Trust Fund.
 
    The  yield on each  class of Certificates  of a Series  will be affected by,
among other things, the rate of payment of principal (including prepayments)  on
the  Mortgage Assets in the related Trust Fund and the timing of receipt of such
payments as described herein and in  the related Prospectus Supplement. A  Trust
Fund  may  be subject  to early  termination  under the  circumstances described
herein and in the related Prospectus Supplement.
 
    If specified in a Prospectus Supplement,  one or more elections may be  made
to  treat the related Trust Fund or specified portions thereof as a 'real estate
mortgage investment  conduit' ('REMIC')  for federal  income tax  purposes.  See
'Certain Federal Income Tax Consequences' herein.
                         ------------------------------
 
THESE  SECURITIES HAVE  NOT BEEN APPROVED  OR DISAPPROVED BY  THE SECURITIES AND
   EXCHANGE COMMISSION  OR  ANY  STATE  SECURITIES  COMMISSION  NOR  HAS  THE
     SECURITIES   AND   EXCHANGE   COMMISSION  OR   ANY   STATE  SECURITIES
       COMMISSION  PASSED  UPON   THE  ACCURACY  OR   ADEQUACY  OF   THIS
         PROSPECTUS   OR   THE  RELATED   PROSPECTUS   SUPPLEMENT.  ANY
             REPRESENTATION TO THE CONTRARY IS A CRIMINAL OFFENSE.
                         ------------------------------
 
    Prior to issuance there will have been no market for the Certificates of any
Series, and  there  can  be  no  assurance  that  a  secondary  market  for  any
Certificates  will develop or, if  it does develop, that  it will continue. This
Prospectus may  not be  used to  consummate sales  of a  Series of  Certificates
unless accompanied by a Prospectus Supplement.
 
    Offers  of  the  Certificates may  be  made  through one  or  more different
methods, including offerings through underwriters, as more fully described under
'Method of Distribution' herein and in the related Prospectus Supplement.
 
   
July   , 1996
    
 
INFORMATION  CONTAINED  HEREIN  IS  SUBJECT   TO  COMPLETION  OR  AMENDMENT.   A
REGISTRATION  STATEMENT RELATING  TO THESE  SECURITIES HAS  BEEN FILED  WITH THE
SECURITIES AND EXCHANGE  COMMISSION. THESE SECURITIES  MAY NOT BE  SOLD NOR  MAY
OFFERS  TO BUY BE ACCEPTED PRIOR TO  THE TIME THE REGISTRATION STATEMENT BECOMES
EFFECTIVE. THIS  PROSPECTUS  SHALL  NOT  CONSTITUTE AN  OFFER  TO  SELL  OR  THE
SOLICITATION  OF AN OFFER TO BUY NOR SHALL THERE BE ANY SALE OF THESE SECURITIES
IN ANY STATE IN WHICH SUCH OFFER, SOLICITATION, OR SALE WOULD BE UNLAWFUL  PRIOR
TO REGISTRATION OR QUALIFICATION UNDER THE SECURITIES LAWS OF ANY SUCH STATE.

<PAGE>
<PAGE>
     Until  90 days  after the date  of each Prospectus  Supplement, all dealers
effecting transactions in the securities covered by such Prospectus  Supplement,
whether  or not  participating in the  distribution thereof, may  be required to
deliver such Prospectus Supplement and this  Prospectus. This is in addition  to
the obligation of dealers to deliver a Prospectus and Prospectus Supplement when
acting   as  underwriters  and  with  respect  to  their  unsold  allotments  or
subscriptions.
 
                             PROSPECTUS SUPPLEMENT
 
     The Prospectus Supplement relating to the Certificates of each Series to be
offered hereunder  will, among  other things,  set forth  with respect  to  such
Certificates,  as  appropriate: (i)  a description  of the  class or  classes of
Certificates and  the related  Pass-Through Rate  or method  of determining  the
amount  of interest, if any,  to be passed through to  each such class; (ii) the
initial aggregate Certificate Balance of each class of Certificates included  in
such  Series, Distribution Dates relating to such Series and, if applicable, the
initial and final scheduled Distribution Dates for each class; (iii) information
as  to   the  assets   comprising  the   Trust  Fund,   including  the   general
characteristics  of the Mortgage Assets included therein and, if applicable, the
insurance, surety bonds, guaranties, letters  of credit or other instruments  or
agreements  included in the Trust Fund, and the amount and source of any Reserve
Fund; (iv) the circumstances, if any, under which the Trust Fund may be  subject
to  early termination; (v) the method used  to calculate the amount of principal
to be distributed with respect to each class of Certificates; (vi) the order  of
application  of distributions to each of the classes within such Series, whether
sequential, pro rata, or otherwise; (vii) the Distribution Dates with respect to
such  Series;  (viii)  additional  information  with  respect  to  the  plan  of
distribution of such Certificates; (ix) whether one or more REMIC elections will
be made and designation of the regular interests and residual interests; (x) the
aggregate  original  percentage  ownership  interest in  the  Trust  Fund  to be
evidenced by each class of Certificates;  (xi) information as to the nature  and
extent  of  subordination with  respect  to any  class  of Certificates  that is
subordinate in right of payment to any other class; and (xii) information as  to
the Seller, the Master Servicer and the Trustee.
 
                             AVAILABLE INFORMATION
 
   
     The  Depositor has filed  with the Securities  and Exchange Commission (the
'Commission') a  Registration Statement  under the  Securities Act  of 1933,  as
amended,  with respect to the Certificates.  This Prospectus, which forms a part
of the Registration Statement,  and the Prospectus  Supplement relating to  each
Series  of Certificates contain summaries of the material terms of the documents
referred to herein and therein,  but do not contain  all of the information  set
forth in the Registration Statement pursuant to the Rules and Regulations of the
Commission.  For  further information,  reference is  made to  such Registration
Statement and the exhibits thereto. Such Registration Statement and exhibits can
be inspected and copied at prescribed  rates at the public reference  facilities
maintained  by the Commission at its Public Reference Section, 450 Fifth Street,
N.W., Washington, D.C. 20549,  and at its Regional  Offices located as  follows:
Chicago  Regional Office, 500 West Madison  Street, Chicago, Illinois 60661; and
New York Regional Office,  Seven World Trade Center,  New York, New York  10048.
The Commission maintains an Internet Web site that contains reports, information
statements   and  other   information  regarding   the  registrants   that  file
electronically with the Commission, including the Depositor. The address of such
Internet Web site is (http://www.sec.gov).
    
 
     No person  has been  authorized to  give  any information  or to  make  any
representation  other than those contained in this Prospectus and any Prospectus
Supplement with  respect hereto  and,  if given  or  made, such  information  or
representations  must not  be relied  upon. This  Prospectus and  any Prospectus
Supplement with  respect  hereto  do  not  constitute an  offer  to  sell  or  a
solicitation  of  an offer  to buy  any securities  other than  the Certificates
offered hereby and thereby nor an offer of the Certificates to any person in any
state or other jurisdiction in which such offer would be unlawful. The  delivery
of this Prospectus at any time does not imply that information herein is correct
as of any time subsequent to its date.
 
                INCORPORATION OF CERTAIN DOCUMENTS BY REFERENCE
 
     All documents subsequently filed by or on behalf of the Trust Fund referred
to  in the  accompanying Prospectus Supplement  with the  Commission pursuant to
Section 13(a), 13(c), 14  or 15(d) of  the Securities Exchange  Act of 1934,  as
amended (the 'Exchange Act'), after the date of this Prospectus and prior to the
termination  of any offering of the Certificates issued by such Trust Fund shall
be deemed to be incorporated by reference in this Prospectus and to be a part of
this Prospectus from  the date of  the filing of  such documents. Any  statement
contained  in a document incorporated or  deemed to be incorporated by reference
herein shall be deemed  to be modified  or superseded for  all purposes of  this
Prospectus  to  the  extent  that  a  statement  contained  herein  (or  in  the
accompanying Prospectus Supplement) or in any other subsequently filed  document
which  also is or is deemed to be incorporated by reference modifies or replaces
such statement.  Any such  statement  so modified  or  superseded shall  not  be
deemed,  except  as so  modified or  superseded,  to constitute  a part  of this
Prospectus.
 
     The Trustee on behalf of any Trust Fund will provide without charge to each
person to whom this Prospectus is delivered,  on the written or oral request  of
such  person, a copy of any or all  of the documents referred to above that have
been or  may be  incorporated by  reference in  this Prospectus  (not  including
exhibits  to  the  information that  is  incorporated by  reference  unless such
exhibits are specifically  incorporated by reference  into the information  that
this Prospectus incorporates). Such requests should be directed to the Corporate
Trust Office of the Trustee specified in the accompanying Prospectus Supplement.
 
                                       2

<PAGE>
<PAGE>
                                SUMMARY OF TERMS
 
     This  summary is  qualified in  its entirety  by reference  to the detailed
information appearing elsewhere in this Prospectus and in the related Prospectus
Supplement with respect to the Series offered thereby. The Prospectus Supplement
for each Series  will specify the  extent (if any)  to which the  terms of  such
Series  or the related Trust Fund vary  from the description of the Certificates
and Trust Funds in general that is contained in this Prospectus.
 
<TABLE>
<S>                                         <C>
Title of Securities.......................  Mortgage Pass-Through Certificates (the 'Certificates'), issuable  in
                                            series  (each,  a  'Series').  Each Series  will  be  issued  under a
                                            separate pooling and servicing agreement (each, an 'Agreement') to be
                                            entered into with respect to each such Series.
Depositor.................................  CWMBS, Inc., a Delaware corporation (the 'Depositor').
Trustee...................................  The trustee (the 'Trustee') for  each Series of Certificates will  be
                                            specified  in the related Prospectus Supplement. See 'The Pooling and
                                            Servicing Agreement' herein for a description of the Trustee's rights
                                            and obligations.
Master Servicer...........................  The  entity  or  entities  named  as  master  servicer  (the  'Master
                                            Servicer')  in  the related  Prospectus Supplement,  which may  be an
                                            affiliate  of  the   Depositor.  See  'The   Pooling  and   Servicing
                                            Agreement  -- Certain Matters  Regarding the Master  Servicer and the
                                            Depositor' herein.
Seller....................................  The entity or entities named as seller (the 'Seller') in the  related
                                            Prospectus Supplement, which may be an affiliate of the Depositor.
Closing Date..............................  The  date (the  'Closing Date')  of initial  issuance of  a Series of
                                            Certificates, as specified in the related Prospectus Supplement.
Trust Fund................................  The trust fund for  a Series of Certificates  (each, a 'Trust  Fund')
                                            will  include certain mortgage related assets (the 'Mortgage Assets')
                                            consisting  of  (a)  first  lien  mortgage  loans  (or  participation
                                            interests   therein)  secured  by  one-  to  four-family  residential
                                            properties  (the   'Mortgage  Loans'),   (b)  mortgage   pass-through
                                            securities  issued or guaranteed by  the Government National Mortgage
                                            Association  ('GNMA'),  the  Federal  National  Mortgage  Association
                                            ('FNMA') or the Federal Home Loan Mortgage Corporation ('FHLMC') (the
                                            'Agency  Securities') or (c) other mortgage pass-through certificates
                                            or collateralized mortgage obligations (the 'Private  Mortgage-Backed
                                            Securities'),  together  with payments  in  respect of  such Mortgage
                                            Assets and certain other accounts, obligations or agreements, in each
                                            case as specified in the related Prospectus Supplement.
A. Mortgage Loans.........................  Unless otherwise  specified  in the  related  Prospectus  Supplement,
                                            Mortgage  Loans will  be secured by  first mortgage liens  on one- to
                                            four-family residential properties (each, a 'Mortgaged Property'). If
                                            so specified, the  Mortgage Loans may  include cooperative  apartment
                                            loans  ('Cooperative Loans') secured by  security interests in shares
                                            issued  by  private,  nonprofit,  cooperative  housing   corporations
                                            ('Cooperatives')  and in the related  proprietary leases or occupancy
                                            agreements granting  exclusive  rights to  occupy  specific  dwelling
                                            units in such Cooperatives' buildings. If so specified in the related
                                            Prospectus  Supplement, the Mortgage Assets of the related Trust Fund
                                            may include mortgage
</TABLE>
 
                                       3
 
<PAGE>
<PAGE>
 
<TABLE>
<S>                                         <C>
                                            participation certificates  evidencing interests  in mortgage  loans.
                                            Such  mortgage loans may be conventional  loans (i.e., loans that are
                                            not insured or guaranteed by any governmental agency), insured by the
                                            Federal Housing  Authority ('FHA')  or  partially guaranteed  by  the
                                            Veterans'   Administration  ('VA')   as  specified   in  the  related
                                            Prospectus Supplement.
B. General Attributes of
   Mortgage Loans.........................  The payment terms  of the Mortgage  Loans to be  included in a  Trust
                                            Fund  will be described in the  related Prospectus Supplement and may
                                            include any  of the  following features  or combinations  thereof  or
                                            other features described in the related Prospectus Supplement:
                                            (a)  Interest may be payable at a  fixed rate, a rate adjustable from
                                                time to time in relation to an index (which will be specified  in
                                                the  related Prospectus Supplement),  a rate that  is fixed for a
                                                period of time or under certain circumstances and is followed  by
                                                an  adjustable rate,  a rate that  otherwise varies  from time to
                                                time, or a rate that is convertible from an adjustable rate to  a
                                                fixed  rate.  Changes to  an adjustable  rate  may be  subject to
                                                periodic  limitations,  maximum   rates,  minimum   rates  or   a
                                                combination of such limitations. Accrued interest may be deferred
                                                and  added to the principal of a  loan for such periods and under
                                                such circumstances as may be specified in the related  Prospectus
                                                Supplement.  The loan agreement or promissory note (the 'Mortgage
                                                Note') in respect of a Mortgage Loan may provide for the  payment
                                                of interest at a rate lower than the interest rate (the 'Mortgage
                                                Rate')  specified in such  Mortgage Note for a  period of time or
                                                for the life of the loan, and the amount of any difference may be
                                                contributed from funds supplied by a third party.
                                            (b) Principal may be payable on  a level debt service basis to  fully
                                                amortize  the loan over its term,  may be calculated on the basis
                                                of an assumed amortization schedule that is significantly  longer
                                                than the original term to maturity or on an interest rate that is
                                                different  from the interest rate on the Mortgage Loan or may not
                                                be amortized  during  all or  a  portion of  the  original  term.
                                                Payment  of all or a substantial  portion of the principal may be
                                                due on  maturity  ('balloon  payments').  Principal  may  include
                                                interest  that  has  been  deferred and  added  to  the principal
                                                balance of the Mortgage Loan.
                                            (c) Monthly payments of principal and  interest may be fixed for  the
                                                life of the loan, may increase over a specified period of time or
                                                may  change  from period  to period.  Mortgage Loans  may include
                                                limits on  periodic  increases  or decreases  in  the  amount  of
                                                monthly  payments and may  include maximum or  minimum amounts of
                                                monthly payments.
                                            (d) The Mortgage Loans generally may  be prepaid at any time  without
                                                payment  of any  prepayment fee. If  so specified  in the related
                                                Prospectus Supplement, prepayments of principal may be subject to
                                                a prepayment fee,  which may be  fixed for the  life of any  such
                                                Mortgage Loan or may
</TABLE>
 
                                       4
 
<PAGE>
<PAGE>
 
<TABLE>
<S>                                         <C>
                                                decline over time, and may be prohibited for the life of any such
                                                Mortgage Loan or for certain periods ('lockout periods'). Certain
                                                Mortgage  Loans may  permit prepayments  after expiration  of the
                                                applicable lockout  period  and  may require  the  payment  of  a
                                                prepayment fee in connection with any such subsequent prepayment.
                                                Other  Mortgage Loans may permit prepayments without payment of a
                                                fee unless the prepayment  occurs during specified time  periods.
                                                The Mortgage Loans may include 'due-on-sale' clauses which permit
                                                the  mortgagee to demand  payment of the  entire Mortgage Loan in
                                                connection with  the sale  or certain  transfers of  the  related
                                                Mortgaged  Property.  Other Mortgage  Loans  may be  assumable by
                                                persons meeting the then applicable underwriting standards of the
                                                Seller.
                                            (e) The  real  property  constituting security  for  repayment  of  a
                                                Mortgage  Loan may be located in any one of the fifty states, the
                                                District of Columbia, Guam, Puerto Rico or any other territory of
                                                the United  States. Unless  otherwise  specified in  the  related
                                                Prospectus  Supplement, all of the Mortgage Loans will be covered
                                                by standard hazard insurance policies insuring against losses due
                                                to fire  and various  other causes.  The Mortgage  Loans will  be
                                                covered  by  primary mortgage  insurance  policies to  the extent
                                                provided in the related Prospectus Supplement.
                                            All Mortgage Loans will have been purchased by the Depositor,  either
                                            directly or through an affiliate, from one or more Sellers.
C. Agency Securities......................  The  Agency  Securities evidenced  by a  Series of  Certificates will
                                            consist  of  (i)  mortgage  participation  certificates  issued   and
                                            guaranteed  as to  timely payment  of interest  and, unless otherwise
                                            specified in the related  Prospectus Supplement, ultimate payment  of
                                            principal  by  the  Federal Home  Loan  Mortgage  Corporation ('FHLMC
                                            Certificates'), (ii) certificates ('Guaranteed Mortgage  Pass-Through
                                            Certificates')   issued  and  guaranteed  as  to  timely  payment  of
                                            principal and interest by  the Federal National Mortgage  Association
                                            ('FNMA    Certificates'),    (iii)   fully    modified   pass-through
                                            mortgage-backed certificates  guaranteed  as  to  timely  payment  of
                                            principal   and   interest  by   the  Government   National  Mortgage
                                            Association  ('GNMA  Certificates'),  (iv)  stripped  mortgage-backed
                                            securities  representing an  undivided interest in  all or  a part of
                                            either  the   principal   distributions   (but   not   the   interest
                                            distributions)  or the interest distributions  (but not the principal
                                            distributions) or  in some  specified portion  of the  principal  and
                                            interest distributions (but not all of such distributions) on certain
                                            FHLMC,  FNMA or GNMA Certificates  and, unless otherwise specified in
                                            the related Prospectus Supplement, guaranteed  to the same extent  as
                                            the   underlying  securities,   (v)  another   type  of  pass-through
                                            certificate issued or guaranteed by GNMA, FNMA or FHLMC and described
                                            in the related Prospectus  Supplement or (vi)  a combination of  such
                                            Agency  Securities. All GNMA Certificates will  be backed by the full
                                            faith and credit of the
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                                            United States. No FHLMC or FNMA Certificates will be backed, directly
                                            or indirectly, by the full faith and credit of the United States.
                                            The Agency Securities may  consist of pass-through securities  issued
                                            under FHLMC's Cash or Guarantor Program, the GNMA I Program, the GNMA
                                            II  Program or  another program  specified in  the related Prospectus
                                            Supplement.  The  payment  characteristics  of  the  mortgage   loans
                                            underlying  the Agency  Securities will  be described  in the related
                                            Prospectus Supplement.
D. Private Mortgage-Backed Securities.....  Private  Mortgage-Backed   Securities   may  include   (a)   mortgage
                                            pass-through   certificates  representing   beneficial  interests  in
                                            certain mortgage  loans or  (b) collateralized  mortgage  obligations
                                            secured  by such  mortgage loans.  Private Mortgage-Backed Securities
                                            may  include  stripped  mortgage-backed  securities  representing  an
                                            undivided  interest  in  all  or  a  part  of  any  of  the principal
                                            distributions (but not  the interest distributions)  or the  interest
                                            distributions  (but  not  the  principal  distributions)  or  in some
                                            specified portion of  the principal and  interest distributions  (but
                                            not  all of such  distributions) on certain  mortgage loans. Although
                                            individual  mortgage  loans  underlying  a  Private   Mortgage-Backed
                                            Security  may be  insured or  guaranteed by  the United  States or an
                                            agency or instrumentality thereof, they need not be, and the  Private
                                            Mortgage-Backed  Securities  themselves  will not  be  so  insured or
                                            guaranteed. Unless  otherwise  specified in  the  related  Prospectus
                                            Supplement  relating  to a  Series of  Certificates, payments  on the
                                            Private Mortgage-Backed Securities  will be  distributed directly  to
                                            the  Trustee  as  registered owner  of  such  Private Mortgage-Backed
                                            Securities.  See   'The  Trust   Fund  --   Private   Mortgage-Backed
                                            Securities' herein.
                                            The  related Prospectus Supplement  for a Series  will specify, among
                                            other things, (i) the approximate aggregate principal amount and type
                                            of any Private Mortgage-Backed Securities to be included in the Trust
                                            Fund for such  Series; (ii) certain  characteristics of the  mortgage
                                            loans   that  comprise   the  underlying   assets  for   the  Private
                                            Mortgage-Backed Securities including (A) the payment features of such
                                            mortgage loans, (B)  the approximate aggregate  principal amount,  if
                                            known,   of  the  underlying  mortgage  loans  that  are  insured  or
                                            guaranteed by a governmental entity,  (C) the servicing fee or  range
                                            of  servicing fees  with respect  to the  mortgage loans  and (D) the
                                            minimum and  maximum  stated  maturities of  the  mortgage  loans  at
                                            origination;  (iii) the maximum  original term to  stated maturity of
                                            the Private  Mortgage-Backed Securities;  (iv) the  weighted  average
                                            term-to-stated  maturity of  the Private  Mortgage-Backed Securities;
                                            (v) the pass-through or  certificate rate or  ranges thereof for  the
                                            Private   Mortgage-Backed  Securities;  (vi)   the  weighted  average
                                            pass-through or  certificate  rate  of  the  Private  Mortgage-Backed
                                            Securities;   (vii)  the   issuer  of   the  Private  Mortgage-Backed
                                            Securities  (the  'PMBS  Issuer'),   the  servicer  of  the   Private
                                            Mortgage-Backed
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<S>                                         <C>
                                            Securities  (the  'PMBS Servicer')  and  the trustee  of  the Private
                                            Mortgage-Backed  Securities  (the  'PMBS  Trustee');  (viii)  certain
                                            characteristics  of credit  support, if  any, such  as reserve funds,
                                            insurance policies, surety  bonds, letters of  credit or  guaranties,
                                            relating to the mortgage loans underlying the Private Mortgage-Backed
                                            Securities  or to such Private Mortgage-Backed Securities themselves;
                                            (ix) the terms on  which underlying mortgage  loans for such  Private
                                            Mortgage-Backed  Securities may,  or are required  to, be repurchased
                                            prior to  stated maturity;  and  (x) the  terms on  which  substitute
                                            mortgage  loans may be delivered to replace those initially deposited
                                            with the PMBS Trustee. See 'The Trust Fund' herein.
Description of the Certificates...........  Each Certificate will represent a beneficial ownership interest in  a
                                            Trust  Fund created by  the Depositor pursuant  to an Agreement among
                                            the Depositor, the Master  Servicer and the  Trustee for the  related
                                            Series.  The Certificates of any Series may  be issued in one or more
                                            classes as specified in the  related Prospectus Supplement. A  Series
                                            of   Certificates  may  include   one  or  more   classes  of  senior
                                            Certificates (collectively,  the 'Senior  Certificates') and  one  or
                                            more   classes   of  subordinate   Certificates   (collectively,  the
                                            'Subordinated  Certificates').   Certain   Series   or   classes   of
                                            Certificates  may be covered by insurance  policies or other forms of
                                            credit enhancement,  in each  case  as described  herein and  in  the
                                            related Prospectus Supplement.
                                            One  or  more  classes of  Certificates  of  each Series  (i)  may be
                                            entitled to receive distributions  allocable only to principal,  only
                                            to  interest or to  any combination thereof; (ii)  may be entitled to
                                            receive distributions only of prepayments of principal throughout the
                                            lives of the Certificates or  during specified periods; (iii) may  be
                                            subordinated  in  the  right to  receive  distributions  of scheduled
                                            payments of  principal, prepayments  of  principal, interest  or  any
                                            combination  thereof to one or more  other classes of Certificates of
                                            such Series  throughout  the  lives of  the  Certificates  or  during
                                            specified periods; (iv) may be entitled to receive such distributions
                                            only  after  the  occurrence  of  events  specified  in  the  related
                                            Prospectus Supplement; (v) may  be entitled to receive  distributions
                                            in  accordance  with  a  schedule  or  formula  or  on  the  basis of
                                            collections from designated  portions of  the assets  in the  related
                                            Trust  Fund;  (vi)  as  to  Certificates  entitled  to  distributions
                                            allocable to interest, may be entitled to receive interest at a fixed
                                            rate or a rate that is subject to change from time to time; and (vii)
                                            as to Certificates entitled  to distributions allocable to  interest,
                                            may be entitled to distributions allocable to interest only after the
                                            occurrence  of events specified in  the related Prospectus Supplement
                                            and may accrue  interest until  such events  occur, in  each case  as
                                            specified  in  the  related  Prospectus  Supplement.  The  timing and
                                            amounts of such distributions may  vary among classes, over time,  or
                                            otherwise as specified in the related Prospectus Supplement.
Distributions on the Certificates.........  Distributions  on  the  Certificates entitled  thereto  will  be made
                                            monthly,  quarterly,  semi-annually  or   at  such  other   intervals
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<S>                                         <C>
                                            and  on  the dates  specified  in the  related  Prospectus Supplement
                                            (each, a 'Distribution Date') out of the payments received in respect
                                            of the assets of the related  Trust Fund or other assets pledged  for
                                            the   benefit  of  the  Certificates  as  specified  in  the  related
                                            Prospectus Supplement. The amount allocable to payments of  principal
                                            and interest on any Distribution Date will be determined as specified
                                            in  the related Prospectus Supplement.  Unless otherwise specified in
                                            the related Prospectus Supplement, all distributions will be made pro
                                            rata to Certificateholders of the class entitled thereto.
                                            Unless otherwise specified in the related Prospectus Supplement,  the
                                            aggregate  original  balance  of the  Certificates  (the 'Certificate
                                            Balance')  will  equal  the  aggregate  distributions  allocable   to
                                            principal  that  such Certificates  will be  entitled to  receive. If
                                            specified in the related Prospectus Supplement, the Certificates will
                                            have an aggregate original Certificate Balance equal to the aggregate
                                            unpaid principal balance of the Mortgage  Assets as of the first  day
                                            of  the month of creation of the Trust Fund and will bear interest at
                                            a rate (the 'Pass-Through Rate') equal to the interest rate borne  by
                                            the   underlying  Mortgage   Loans,  Agency   Securities  or  Private
                                            Mortgage-Backed Securities, net of  the aggregate servicing fees  and
                                            any  other amounts specified in the related Prospectus Supplement. If
                                            specified  in  the  related  Prospectus  Supplement,  the   aggregate
                                            original  Certificate Balance of the  Certificates and interest rates
                                            on the classes of Certificates will  be determined based on the  cash
                                            flow on the Mortgage Assets.
                                            The  rate at which interest will be passed through to holders of each
                                            class of Certificates entitled thereto may be a fixed rate or a  rate
                                            that is subject to change from time to time from the time and for the
                                            periods,  in  each  case,  as  specified  in  the  related Prospectus
                                            Supplement. Any  such  rate  may be  calculated  on  a  loan-by-loan,
                                            weighted  average or  other basis, in  each case as  described in the
                                            related Prospectus Supplement.
Credit Enhancement........................  The assets in a Trust Fund or the Certificates of one or more classes
                                            in the related Series may  have the benefit of  one or more types  of
                                            credit enhancement as described in the related Prospectus Supplement.
                                            The protection against losses afforded by any such credit support may
                                            be   limited.  The   type,  characteristics  and   amount  of  credit
                                            enhancement will be  determined based on  the characteristics of  the
                                            Mortgage Loans underlying or comprising the Mortgage Assets and other
                                            factors  and will be established on the basis of requirements of each
                                            Rating Agency rating  the Certificates  of such  Series. See  'Credit
                                            Enhancement' herein.
A. Subordination..........................  A Series of Certificates may consist of one or more classes of Senior
                                            Certificates  and one  or more classes  of Subordinated Certificates.
                                            The rights  of the  holders  of the  Subordinated Certificates  of  a
                                            Series    (the   'Subordinated    Certificateholders')   to   receive
                                            distributions with respect to  the assets in  the related Trust  Fund
                                            will  be subordinated  to such  rights of  the holders  of the Senior
                                            Certificates of the same Series (the 'Senior Certificateholders')  to
                                            the  extent  described  in the  related  Prospectus  Supplement. This
                                            subordination is intended to
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                                            enhance   the    likelihood   of    regular   receipt    by    Senior
                                            Certificateholders  of  the full  amount  of their  scheduled monthly
                                            payments of principal  and interest. The  protection afforded to  the
                                            Senior  Certificateholders of a Series  by means of the subordination
                                            feature will be accomplished  by (i) the  preferential right of  such
                                            holders  to receive, prior to any  distribution being made in respect
                                            of the related  Subordinated Certificates, the  amounts of  principal
                                            and  interest due  them on  each Distribution  Date out  of the funds
                                            available for distribution  on such date  in the related  Certificate
                                            Account  and,  to  the  extent described  in  the  related Prospectus
                                            Supplement,  by  the  right  of   such  holders  to  receive   future
                                            distributions  on the  assets in  the related  Trust Fund  that would
                                            otherwise have been payable  to the Subordinated  Certificateholders;
                                            (ii)  reducing  the ownership  interest  of the  related Subordinated
                                            Certificates; (iii) a combination of  clauses (i) and (ii) above;  or
                                            (iv)  as otherwise described in the related Prospectus Supplement. If
                                            so specified in the related Prospectus Supplement, subordination  may
                                            apply  only in the  event of certain  types of losses  not covered by
                                            other forms of credit support, such  as hazard losses not covered  by
                                            standard hazard insurance policies or losses due to the bankruptcy or
                                            fraud  of the  borrower. The  related Prospectus  Supplement will set
                                            forth information  concerning,  among  other things,  the  amount  of
                                            subordination of a class or classes of Subordinated Certificates in a
                                            Series,  the  circumstances  in  which  such  subordination  will  be
                                            applicable  and  the  manner,  if   any,  in  which  the  amount   of
                                            subordination will decrease over time.
B. Reserve Fund...........................  One or more reserve funds (the 'Reserve Fund') may be established and
                                            maintained  for each  Series. The related  Prospectus Supplement will
                                            specify whether or not any such Reserve Fund will be included in  the
                                            corpus  of the Trust Fund  for such Series and  will also specify the
                                            manner of funding the related  Reserve Fund and the conditions  under
                                            which  the amounts  in any  such Reserve  Fund will  be used  to make
                                            distributions to holders  of Certificates  of a  particular class  or
                                            released from the related Trust Fund.
C. Mortgage Pool
   Insurance Policy.......................  A  mortgage  pool insurance  policy or  policies (the  'Mortgage Pool
                                            Insurance Policy') may be obtained and maintained for a Series, which
                                            shall be limited in scope, covering defaults on the related  Mortgage
                                            Loans  in an  initial amount equal  to a specified  percentage of the
                                            aggregate principal balance  of all  Mortgage Loans  included in  the
                                            Mortgage  Pool as of  the first day  of the month  of issuance of the
                                            related Series of Certificates or such other date as is specified  in
                                            the related Prospectus Supplement (the 'Cut-off Date').
D. Special Hazard Insurance
   Policy.................................  A  special hazard insurance  policy or policies  (the 'Special Hazard
                                            Insurance Policy'),  may be  obtained and  maintained for  a  Series,
                                            covering  certain  physical  risks  that  are  not  otherwise insured
                                            against by standard  hazard insurance policies.  Each Special  Hazard
                                            Insurance  Policy  will be  limited in  scope  and will  cover losses
                                            pursuant to the provisions of
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                                            each such Special Hazard Insurance Policy as described in the related
                                            Prospectus Supplement.
E. Bankruptcy Bond........................  A bankruptcy bond or bonds  (the 'Bankruptcy Bonds') may be  obtained
                                            to  cover certain losses resulting from action that may be taken by a
                                            bankruptcy court in  connection with  a Mortgage Loan.  The level  of
                                            coverage and the limitations in scope of each Bankruptcy Bond will be
                                            specified in the related Prospectus Supplement.
F. FHA Insurance and VA
   Guaranty...............................  All  or a  portion of the  Mortgage Loans  in a Mortgage  Pool may be
                                            insured by  FHA  insurance ('FHA  Insurance')  and may  be  partially
                                            guaranteed by the VA (a 'VA Guaranty').
G. Cross Support..........................  If  specified in  the related  Prospectus Supplement,  the beneficial
                                            ownership of separate groups of assets  included in a Trust Fund  may
                                            be   evidenced  by  separate   classes  of  the   related  Series  of
                                            Certificates. In  such case,  credit  support may  be provided  by  a
                                            cross-support  feature which requires that distributions be made with
                                            respect to  Certificates evidencing  beneficial ownership  of one  or
                                            more asset groups prior to distributions to Subordinated Certificates
                                            evidencing  a  beneficial ownership  interest  in other  asset groups
                                            within the same Trust Fund.
H. Other Arrangements.....................  Other arrangements as described in the related Prospectus  Supplement
                                            including,  but not limited to, one or more letters of credit, surety
                                            bonds, other  insurance or  third party  guaranties, may  be used  to
                                            provide  coverage for  certain risks of  default or  various types of
                                            losses.
Advances..................................  Unless otherwise specified in the related Prospectus Supplement,  the
                                            Master   Servicer  and,   if  applicable,   each  mortgage  servicing
                                            institution that  services a  Mortgage  Loan in  a Mortgage  Pool  on
                                            behalf  of  the  Master  Servicer (each,  a  'Sub-Servicer')  will be
                                            obligated to advance  amounts (each, an  'Advance') corresponding  to
                                            delinquent  principal  and interest  payments  on such  Mortgage Loan
                                            (including, in the case of Cooperative Loans, unpaid maintenance fees
                                            or other charges under the related proprietary lease) until the first
                                            day of the month  following the date on  which the related  Mortgaged
                                            Property  is sold at a foreclosure  sale or the related Mortgage Loan
                                            is otherwise  liquidated.  Any obligation  to  make Advances  may  be
                                            subject  to  limitations  as  specified  in  the  related  Prospectus
                                            Supplement. Advances  will be  reimbursable to  the extent  described
                                            herein and in the related Prospectus Supplement.
Optional Termination......................  The  Master  Servicer  or,  if specified  in  the  related Prospectus
                                            Supplement, the holder of the residual  interest in a REMIC may  have
                                            the  option to  effect early retirement  of a  Series of Certificates
                                            through the purchase of the Mortgage  Assets and other assets in  the
                                            related  Trust  Fund  under  the  circumstances  and  in  the  manner
                                            described in  'The Pooling  and Servicing  Agreement --  Termination;
                                            Optional Termination' herein.
Legal Investment..........................  The  Prospectus  Supplement  for  each  Series  of  Certificates will
                                            specify which, if any, of the classes of Certificates offered thereby
                                            will constitute  'mortgage related  securities' for  purposes of  the
                                            Secondary Mortgage Market Enhancement
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<S>                                         <C>
                                            Act  of  1984  ('SMMEA').  Classes of  Certificates  that  qualify as
                                            'mortgage related securities' will  be legal investments for  certain
                                            types  of institutional  investors to  the extent  provided in SMMEA,
                                            subject, in  any  case, to  any  other regulations  that  may  govern
                                            investments  by  such  institutional  investors.  Institutions  whose
                                            investment activities  are  subject to  review  by federal  or  state
                                            authorities  should  consult  with their  counsel  or  the applicable
                                            authorities to determine whether an investment in a particular  class
                                            of  Certificates (whether or  not such class  constitutes a 'mortgage
                                            related  security')  complies  with  applicable  guidelines,   policy
                                            statements or restrictions. See 'Legal Investment' herein.
Certain Federal Income Tax Consequences...  The  federal income tax consequences  to Certificateholders will vary
                                            depending on whether  one or  more elections  are made  to treat  the
                                            Trust  Fund or specified portions thereof  as a 'real estate mortgage
                                            investment conduit' ('REMIC')  under the provisions  of the  Internal
                                            Revenue  Code  of  1986,  as  amended  (the  'Code').  The Prospectus
                                            Supplement for each Series of Certificates will specify whether  such
                                            an   election  will  be   made.  See  'Certain   Federal  Income  Tax
                                            Consequences' herein and in the related Prospectus Supplement.
ERISA Considerations......................  A fiduciary of any employee benefit plan or other retirement plan  or
                                            arrangement subject to the Employee Retirement Income Security Act of
                                            1974,  as amended ('ERISA'), or the Code should carefully review with
                                            its legal advisors  whether the purchase  or holding of  Certificates
                                            could  give  rise  to  a  transaction  prohibited  or  not  otherwise
                                            permissible under  ERISA  or  the Code.  See  'ERISA  Considerations'
                                            herein  and in the related  Prospectus Supplement. Certain classes of
                                            Certificates may  not  be  transferred unless  the  Trustee  and  the
                                            Depositor are furnished with a letter of representation or an opinion
                                            of  counsel to  the effect  that such transfer  will not  result in a
                                            violation of the prohibited transaction  provisions of ERISA and  the
                                            Code  and will not  subject the Trustee, the  Depositor or the Master
                                            Servicer  to  additional   obligations.  See   'Description  of   the
                                            Certificates -- General' and 'ERISA Considerations' herein and in the
                                            related Prospectus Supplement.
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                                       11

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                                THE TRUST FUND*
 
     The  Trust Fund for each Series will be held by the Trustee for the benefit
of the  related Certificateholders.  Each  Trust Fund  will consist  of  certain
mortgage-related  assets (the  'Mortgage Assets')  consisting of  (A) a mortgage
pool (a 'Mortgage Pool') comprised of  Mortgage Loans, (B) Agency Securities  or
(C) Private Mortgage-Backed Securities, in each case as specified in the related
Prospectus Supplement, together with payments in respect of such Mortgage Assets
and certain other accounts, obligations or agreements, in each case as specified
in the related Prospectus Supplement.
 
     The Certificates will be entitled to payment from the assets of the related
Trust  Fund  or other  assets pledged  for the  benefit of  the holders  of such
Certificates (the 'Certificateholders') as  specified in the related  Prospectus
Supplement  and will not be entitled to payments in respect of the assets of any
other trust fund established by the Depositor. Unless otherwise specified in the
related Prospectus  Supplement,  the Mortgage  Assets  of any  Trust  Fund  will
consist   of  Mortgage  Loans,  Agency  Securities  or  Private  Mortgage-Backed
Securities but not a combination thereof.
 
     The Mortgage Assets may  be acquired by the  Depositor, either directly  or
through  affiliates, from originators  or sellers that may  be affiliates of the
Depositor (the 'Sellers')  and conveyed by  the Depositor to  the related  Trust
Fund.  Mortgage Loans  acquired by  the Depositor  will have  been originated in
accordance with the underwriting criteria  specified below under 'Mortgage  Loan
Program  --  Underwriting  Standards' or  as  otherwise described  in  a related
Prospectus Supplement.
 
     The following is a brief description of the Mortgage Assets expected to  be
included  in the  Trust Funds. If  specific information  respecting the Mortgage
Assets is not known at the time the related Series of Certificates initially  is
offered, more general information of the nature described below will be provided
in the related Prospectus Supplement, and specific information will be set forth
in  a report on Form 8-K to be filed with the Securities and Exchange Commission
within fifteen  days  after  the  initial issuance  of  such  Certificates  (the
'Detailed  Description'). A  schedule of  the Mortgage  Assets relating  to such
Series will be attached to the Agreement delivered to the Trustee upon  delivery
of the Certificates.
 
THE MORTGAGE LOANS -- GENERAL
 
     For  purposes  hereof,  the real  property  that secures  repayment  of the
Mortgage Loans  is  referred  to collectively  as  'Mortgaged  Properties'.  The
Mortgaged Properties may be located in any one of the fifty states, the District
of  Columbia, Guam,  Puerto Rico  or any other  territory of  the United States.
Mortgage Loans  with  certain  Loan-to-Value  Ratios  and/or  certain  principal
balances  may  be  covered  wholly or  partially  by  primary  mortgage guaranty
insurance policies (each, a 'Primary Mortgage Insurance Policy'). The existence,
extent and duration  of any such  coverage will be  described in the  applicable
Prospectus Supplement.
 
     Unless otherwise specified in the related Prospectus Supplement, all of the
Mortgage  Loans in a Mortgage  Pool will have monthly  payments due on the first
day of each month. The payment terms of  the Mortgage Loans to be included in  a
Trust  Fund  will be  described  in the  related  Prospectus Supplement  and may
include any of the following features  or combination thereof or other  features
described in the related Prospectus Supplement:
 
          (a)  Interest may be payable  at a fixed rate,  a rate adjustable from
     time to  time in  relation to  an index  (which will  be specified  in  the
     related  Prospectus Supplement), a rate that is  fixed for a period of time
     or under certain  circumstances and is  followed by an  adjustable rate,  a
     rate that otherwise varies from time to time, or a rate that is convertible
     from  an adjustable rate to a fixed rate. Changes to an adjustable rate may
     be subject  to periodic  limitations,  maximum rates,  minimum rates  or  a
     combination of such limitations. Accrued interest may be deferred and added
     to the principal of a loan for such periods and under such circumstances as
     may be specified in the
 
                         ------------------------------
 
* Whenever  the  terms  'Mortgage  Pool' and  'Certificates'  are  used  in this
  Prospectus, such terms will be deemed  to apply, unless the context  indicates
  otherwise,  to one  specific Mortgage  Pool and  the Certificates representing
  certain undivided interests, as described below,  in a single trust fund  (the
  'Trust  Fund') consisting  primarily of the  Mortgage Assets  in such Mortgage
  Pool. Similarly, the term 'Pass-Through  Rate' will refer to the  Pass-Through
  Rate  borne by  the Certificates  of one specific  Series and  the term 'Trust
  Fund' will refer to one specific Trust Fund.
 
                                       12
 
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<PAGE>
     related Prospectus Supplement. A Mortgage Note may provide for the  payment
     of  interest  at a  rate lower  than  the Mortgage  Rate specified  in such
     Mortgage Note for a  period of time or  for the life of  the loan, and  the
     amount  of any  difference may  be contributed  from funds  supplied by the
     seller of the Mortgaged Property or another source.
 
          (b) Principal may be  payable on a level  debt service basis to  fully
     amortize the Mortgage Loan over its term, may be calculated on the basis of
     an  assumed  amortization schedule  that is  significantly longer  than the
     original term to maturity or on an interest rate that is different from the
     Mortgage Rate  or may  not be  amortized during  all or  a portion  of  the
     original term. Payment of all or a substantial portion of the principal may
     be  due on  maturity ('balloon  payments'). Principal  may include interest
     that has been deferred and added  to the principal balance of the  Mortgage
     Loan.
 
          (c)  Monthly payments of  principal and interest may  be fixed for the
     life of the Mortgage Loan, may increase over a specified period of time  or
     may  change from period to period. The terms of a Mortgage Loan may include
     limits on periodic increases or decreases in the amount of monthly payments
     and may include maximum or minimum amounts of monthly payments.
 
          (d) The Mortgage Loans  generally may be prepaid  at any time  without
     the  payment  of  any  prepayment  fee.  If  so  specified  in  the related
     Prospectus Supplement, some prepayments  of principal may  be subject to  a
     prepayment  fee, which may be fixed for  the life of any such Mortgage Loan
     or may  decline over  time, and  may be  prohibited for  the life  of  such
     Mortgage  Loan or for certain periods ('lockout periods'). Certain Mortgage
     Loans may permit  prepayments after  expiration of  the applicable  lockout
     period  and may require the payment of  a prepayment fee in connection with
     any such subsequent prepayment. Other Mortgage Loans may permit prepayments
     without payment of a fee unless the prepayment occurs during specified time
     periods. The  loans  may  include 'due-on-sale'  clauses  that  permit  the
     mortgagee  to demand payment of the entire Mortgage Loan in connection with
     the sale  or certain  transfers of  the related  Mortgaged Property.  Other
     Mortgage  Loans may  be assumable  by persons  meeting the  then applicable
     underwriting standards of the Seller.
 
     A Trust  Fund may  contain certain  Mortgage Loans  ('Buydown Loans')  that
include  provisions  whereby  a  third party  partially  subsidizes  the monthly
payments of the obligors on such Mortgage Loans (each, a 'Mortgagor') during the
early years of such Mortgage Loans, the difference to be made up from a fund  (a
'Buydown  Fund') contributed by such  third party at the  time of origination of
the Mortgage Loan.  A Buydown  Fund will  be in an  amount equal  either to  the
discounted  value  or full  aggregate amount  of  future payment  subsidies. The
underlying assumption of buydown plans is that the income of the Mortgagor  will
increase  during  the  buydown  period  as  a  result  of  normal  increases  in
compensation and inflation, so that the Mortgagor will be able to meet the  full
mortgage  payments at  the end of  the buydown  period. To the  extent that this
assumption as to increased income is not fulfilled, the possibility of  defaults
on  Buydown Loans is  increased. The related  Prospectus Supplement will contain
information with  respect to  any  Buydown Loan  concerning limitations  on  the
interest  rate  paid by  the  Mortgagor initially,  on  annual increases  in the
interest rate and on the length of the buydown period.
 
     Each Prospectus Supplement will contain information, as of the date of such
Prospectus  Supplement  and  to  the  extent  then  specifically  known  to  the
Depositor,  with respect to the Mortgage Loans contained in the related Mortgage
Pool, including (i) the aggregate outstanding principal balance and the  average
outstanding principal balance of the Mortgage Loans as of the applicable Cut-off
Date,  (ii) the  type of  property securing  the Mortgage  Loans (e.g., separate
residential properties, individual units  in condominium apartment buildings  or
in  buildings owned  by Cooperatives, vacation  and second homes,  or other real
property), (iii) the original terms to maturity of the Mortgage Loans, (iv)  the
largest  principal  balance and  the smallest  principal balance  of any  of the
Mortgage Loans, (v) the  earliest origination date and  latest maturity date  of
any  of the  Mortgage Loans,  (vi) the  aggregate principal  balance of Mortgage
Loans having  Loan-to-Value  Ratios  at origination  exceeding  80%,  (vii)  the
maximum  and  minimum  per  annum Mortgage  Rates  and  (viii)  the geographical
distribution of  the  Mortgage Loans.  If  specific information  respecting  the
Mortgage  Loans  is  not  known  to  the  Depositor  at  the  time  the  related
Certificates are  initially  offered, more  general  information of  the  nature
described above will be provided in the Detailed Description.
 
                                       13
 
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<PAGE>
     The  'Loan-to-Value Ratio'  of a  Mortgage Loan  at any  given time  is the
fraction, expressed as  a percentage,  the numerator  of which  is the  original
principal  balance of the related Mortgage Loan  and the denominator of which is
the Collateral  Value  of  the  related  Mortgaged  Property.  Unless  otherwise
specified  in the  related Prospectus  Supplement, the  'Collateral Value'  of a
Mortgaged Property is  the lesser of  (a) the appraised  value determined in  an
appraisal  obtained by the  originator at origination of  such Mortgage Loan and
(b) the sales price for such property.
 
     No assurance can  be given  that values  of the  Mortgaged Properties  have
remained  or will  remain at  their levels  on the  dates of  origination of the
related Mortgage Loans. If the residential real estate market should  experience
an  overall  decline  in property  values  such that  the  outstanding principal
balances of the  Mortgage Loans, and  any secondary financing  on the  Mortgaged
Properties,  in a particular Mortgage  Pool become equal to  or greater than the
value  of  the  Mortgaged  Properties,   the  actual  rates  of   delinquencies,
foreclosures  and losses could be higher than those now generally experienced in
the mortgage  lending industry.  In addition,  adverse economic  conditions  and
other  factors (which may or may not affect real property values) may affect the
timely payment by Mortgagors of scheduled payments of principal and interest  on
the  Mortgage  Loans  and,  accordingly,  the  actual  rates  of  delinquencies,
foreclosures and losses with  respect to any Mortgage  Pool. To the extent  that
such   losses  are  not  covered  by  subordination  provisions  or  alternative
arrangements, such losses will be borne, at least in part, by the holders of the
Certificates of the related Series.
 
     The Depositor will cause the  Mortgage Loans comprising each Mortgage  Pool
to be assigned to the Trustee named in the related Prospectus Supplement for the
benefit  of the  Certificateholders of the  related Series.  The Master Servicer
named in  the related  Prospectus Supplement  will service  the Mortgage  Loans,
either    directly   or   through    other   mortgage   servicing   institutions
('Sub-Servicers'), pursuant  to  a Pooling  and  Servicing Agreement  (each,  an
'Agreement'),  and  will receive  a fee  for such  services. See  'Mortgage Loan
Program' and  'The Pooling  and  Servicing Agreement'  herein. With  respect  to
Mortgage  Loans  serviced by  the Master  Servicer  through a  Sub-Servicer, the
Master Servicer  will remain  liable  for its  servicing obligations  under  the
related  Agreement as if the Master  Servicer alone were servicing such Mortgage
Loans.
 
     Unless otherwise specified in the  related Prospectus Supplement, the  only
obligations of the Depositor with respect to a Series of Certificates will be to
obtain  certain representations and warranties from the Sellers and to assign to
the Trustee for such Series of Certificates the Depositor's rights with  respect
to   such  representations  and  warranties.  See  'The  Pooling  and  Servicing
Agreement --  Assignment of  Mortgage  Assets' herein.  The obligations  of  the
Master  Servicer with respect to the  Mortgage Loans will consist principally of
its contractual servicing obligations under the related Agreement (including its
obligation to enforce the obligations of the Sub-Servicers or Sellers, or  both,
as  more fully described herein under  'Mortgage Loan Program -- Representations
by Sellers; Repurchases' and its obligation to make certain cash advances (each,
an 'Advance') in the event  of delinquencies in payments  on or with respect  to
the  Mortgage Loans  in the amounts  described herein under  'Description of the
Certificates --  Advances'.  The obligations  of  the Master  Servicer  to  make
Advances may be subject to limitations, to the extent provided herein and in the
related Prospectus Supplement.
 
     Unless  otherwise specified in the  related Prospectus Supplement, Mortgage
Loans will consist of mortgage loans, deeds of trust or participations or  other
beneficial  interests therein,  secured by  first liens  on one-  to four-family
residential  properties.  If  so  specified,  the  Mortgage  Loans  may  include
cooperative  apartment loans ('Cooperative Loans') secured by security interests
in shares  issued  by  private,  non-profit,  cooperative  housing  corporations
('Cooperatives')  and in the related  proprietary leases or occupancy agreements
granting  exclusive  rights   to  occupy   specific  dwelling   units  in   such
Cooperatives'  buildings. If so specified  in the related Prospectus Supplement,
the Mortgage Assets of the related Trust Fund may include mortgage participation
certificates  evidencing  interests  in  Mortgage  Loans.  Such  loans  may   be
conventional  loans  (i.e., loans  that  are not  insured  or guaranteed  by any
governmental agency) or loans insured by the FHA or partially guaranteed by  the
VA, as specified in the related Prospectus Supplement.
 
     The  Mortgaged  Properties  relating  to  Mortgage  Loans  will  consist of
detached  or  semi-detached  one-family  dwelling  units,  two-  to  four-family
dwelling  units, townhouses, rowhouses, individual condominium units, individual
units in  planned  unit developments  and  certain other  dwelling  units.  Such
Mortgaged   Properties  may  include  vacation   and  second  homes,  investment
properties and leasehold interests. In the case of leasehold interests, the term
of the leasehold will exceed the
 
                                       14
 
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<PAGE>
scheduled maturity of the Mortgage Loan by at least five years, unless otherwise
specified in the related Prospectus Supplement.
 
AGENCY SECURITIES
 
     Government National Mortgage Association.  GNMA is a wholly-owned corporate
instrumentality of  the  United States  with  the United  States  Department  of
Housing  and  Urban Development.  Section  306(g) of  Title  II of  the National
Housing Act  of  1934,  as  amended (the  'Housing  Act'),  authorizes  GNMA  to
guarantee  the timely payment  of the principal of  and interest on certificates
(the 'GNMA Certificates') that represent an interest in a pool of mortgage loans
insured by the FHA under the Housing Act  or Title V of the Housing Act of  1949
('FHA  Loans'),  or  partially  guaranteed  by  the  VA  under  the Servicemen's
Readjustment Act of 1944, as amended, or  Chapter 37 of Title 38, United  States
Code ('VA Loans').
 
     Section  306(g) of the Housing Act provides that 'the full faith and credit
of the United  States is  pledged to  the payment of  all amounts  which may  be
required  to be paid under any guaranty under this subsection.' In order to meet
its obligations under any such guaranty,  GNMA may, under Section 306(d) of  the
Housing Act, borrow from the United States Treasury in an unlimited amount which
is  at any time sufficient  to enable GNMA to  perform its obligations under its
guarantee.
 
     GNMA Certificates.  Each GNMA Certificate  held in a Trust Fund (which  may
be  issued under  either the GNMA  I program  (each such certificate,  a 'GNMA I
Certificate') or  the  GNMA  II  program (each  such  certificate,  a  'GNMA  II
Certificate'))   will  be   a  'fully   modified  pass-through'  mortgage-backed
certificate issued and serviced by a mortgage banking company or other financial
concern ('GNMA Issuer') approved by GNMA or by FNMA as a seller-servicer of  FHA
Loans  and/or VA Loans. The mortgage loans underlying the GNMA Certificates will
consist of FHA Loans and/or  VA Loans. Each such mortgage  loan is secured by  a
one-  to four-family or multifamily residential  property. GNMA will approve the
issuance of each such GNMA Certificate  in accordance with a guaranty  agreement
(a  'Guaranty  Agreement') between  GNMA and  the GNMA  Issuer. Pursuant  to its
Guaranty Agreement, a GNMA Issuer will be  required to advance its own funds  in
order  to make timely payments of all  amounts due on each such GNMA Certificate
if the  payments received  by the  GNMA  Issuer on  the FHA  Loans or  VA  Loans
underlying each such GNMA Certificate are less than the amounts due on each such
GNMA Certificate.
 
     The  full and  timely payment  of principal  of and  interest on  each GNMA
Certificate will be guaranteed by GNMA,  which obligation is backed by the  full
faith  and credit of the United States.  Each such GNMA Certificate will have an
original maturity of not more than 30 years (but may have original maturities of
substantially less than 30 years). Each  such GNMA Certificate will be based  on
and  backed by a  pool of FHA Loans  or VA Loans secured  by one- to four-family
residential properties and will provide for the  payment by or on behalf of  the
GNMA  Issuer  to the  registered holder  of such  GNMA Certificate  of scheduled
monthly payments  of principal  and interest  equal to  the registered  holder's
proportionate  interest in  the aggregate  amount of  the monthly  principal and
interest payment on each FHA Loan  or VA Loan underlying such GNMA  Certificate,
less  the  applicable  servicing  and guaranty  fee,  which  together  equal the
difference between the interest on the FHA Loan or VA Loan and the  pass-through
rate   on  the  GNMA  Certificate.  In   addition,  each  payment  will  include
proportionate pass-through payments of any  prepayments of principal on the  FHA
Loans  or VA Loans underlying such  GNMA Certificate and liquidation proceeds in
the event of  a foreclosure or  other disposition of  any such FHA  Loans or  VA
Loans.
 
     If a GNMA Issuer is unable to make the payments on a GNMA Certificate as it
becomes due, it must promptly notify GNMA and request GNMA to make such payment.
Upon  notification and  request, GNMA  will make  such payments  directly to the
registered holder of such GNMA Certificate. In the event no payment is made by a
GNMA Issuer and the GNMA  Issuer fails to notify and  request GNMA to make  such
payment,  the holder  of such GNMA  Certificate will have  recourse only against
GNMA to obtain such payment. The Trustee or its nominee, as registered holder of
the GNMA Certificates  held in  a Trust  Fund, will  have the  right to  proceed
directly  against GNMA  under the terms  of the Guaranty  Agreements relating to
such GNMA Certificates for any amounts that are not paid when due.
 
     All mortgage loans underlying a particular GNMA I Certificate must have the
same interest rate (except for pools  of mortgage loans secured by  manufactured
homes) over the term of the loan. The
 
                                       15
 
<PAGE>
<PAGE>
interest  rate on such  GNMA I Certificate  will equal the  interest rate on the
mortgage loans included  in the pool  of mortgage loans  underlying such GNMA  I
Certificate,  less one-half percentage  point per annum  of the unpaid principal
balance of the mortgage loans.
 
     Mortgage loans underlying  a particular  GNMA II Certificate  may have  per
annum  interest rates that vary  from each other by  up to one percentage point.
The interest  rate  on  each  GNMA  II  Certificate  will  be  between  one-half
percentage  point and one and one-half  percentage points lower than the highest
interest rate  on the  mortgage loans  included in  the pool  of mortgage  loans
underlying  such GNMA II Certificate (except for pools of mortgage loans secured
by manufactured homes).
 
     Regular monthly installment  payments on  each GNMA Certificate  held in  a
Trust  Fund  will  be  comprised  of interest  due  as  specified  on  such GNMA
Certificate plus the scheduled principal payments  on the FHA Loans or VA  Loans
underlying  such GNMA Certificate due on the first day of the month in which the
scheduled monthly installments on  such GNMA Certificate  are due. Such  regular
monthly  installments on each such  GNMA Certificate are required  to be paid to
the Trustee as registered holder by the 15th day of each month in the case of  a
GNMA  I Certificate and are required to be mailed to the Trustee by the 20th day
of each month in the case of a GNMA II Certificate. Any principal prepayments on
any FHA Loans or VA Loans underlying a GNMA Certificate held in a Trust Fund  or
any  other early recovery of  principal on such loans  will be passed through to
the Trustee as the registered holder of such GNMA Certificate.
 
     GNMA Certificates may be backed by  graduated payment mortgage loans or  by
Buydown Loans for which funds will have been provided (and deposited into escrow
accounts)  for application to the payment of a portion of the borrowers' monthly
payments during  the  early  years  of such  mortgage  loan.  Payments  due  the
registered holders of GNMA Certificates backed by pools containing Buydown Loans
will  be  computed  in the  same  manner  as payments  derived  from  other GNMA
Certificates and will include amounts to be collected from both the borrower and
the related escrow account.  The graduated payment  mortgage loans will  provide
for  graduated interest payments  that, during the early  years of such mortgage
loans, will be less than the amount  of stated interest on such mortgage  loans.
The  interest  not so  paid will  be added  to the  principal of  such graduated
payment mortgage loans  and, together  with interest  thereon, will  be paid  in
subsequent  years. The obligations of GNMA and of a GNMA Issuer will be the same
irrespective of whether the  GNMA Certificates are  backed by graduated  payment
mortgage  loans  or  Buydown  Loans.  No  statistics  comparable  to  the  FHA's
prepayment  experience  on  level  payment,  non-'buydown'  mortgage  loans  are
available  in respect of  graduated payment or  Buydown Loans. GNMA Certificates
related to a Series of Certificates may be held in book-entry form.
 
     The GNMA Certificates included in a Trust Fund, and the related  underlying
mortgage  loans,  may  have  characteristics  and  terms  different  from  those
described above. Any such different characteristics and terms will be  described
in the related Prospectus Supplement.
 
     Federal   Home   Loan  Mortgage   Corporation.     FHLMC  is   a  corporate
instrumentality of  the United  States  created pursuant  to  Title III  of  the
Emergency  Home Finance Act  of 1970, as  amended (the 'FHLMC  Act'). The common
stock of FHLMC is owned by the  Federal Home Loan Banks and its preferred  stock
is  owned by stockholders of the Federal  Home Loan Banks. FHLMC was established
primarily for the purpose of increasing the availability of mortgage credit  for
the financing of urgently needed housing. It seeks to provide an enhanced degree
of  liquidity for residential mortgage investments primarily by assisting in the
development of  secondary  markets  for conventional  mortgages.  The  principal
activity  of FHLMC currently consists of the purchase of first lien conventional
mortgage loans or participation interests in such mortgage loans and the sale of
the mortgage  loans or  participations  so purchased  in  the form  of  mortgage
securities,  primarily FHLMC Certificates.  FHLMC is confined  to purchasing, so
far as practicable, mortgage loans that it deems to be of such quality, type and
class  as  to  meet  generally   the  purchase  standards  imposed  by   private
institutional mortgage investors.
 
     FHLMC  Certificates.    Each  FHLMC  Certificate  represents  an  undivided
interest in a pool of mortgage loans that may consist of first lien conventional
loans, FHA Loans or VA Loans  (a 'FHLMC Certificate group'). FHLMC  Certificates
are  sold under the  terms of a Mortgage  Participation Certificate Agreement. A
FHLMC Certificate may be issued under  either FHLMC's Cash Program or  Guarantor
Program.
 
                                       16
 
<PAGE>
<PAGE>
     Mortgage  loans underlying the FHLMC Certificates held by a Trust Fund will
consist of mortgage loans with original terms  to maturity of between 10 and  40
years.  Each such mortgage loan must meet  the applicable standards set forth in
the FHLMC Act. A FHLMC Certificate group may include whole loans,  participation
interests  in  whole  loans  and  undivided  interests  in  whole  loans  and/or
participations comprising another FHLMC  Certificate group. Under the  Guarantor
Program,  any  such FHLMC  Certificate  group may  include  only whole  loans or
participation interests in whole loans.
 
     FHLMC guarantees  to each  registered  holder of  a FHLMC  Certificate  the
timely payment of interest on the underlying mortgage loans to the extent of the
applicable  certificate interest rate on the  registered holder's pro rata share
of the unpaid principal balance outstanding on the underlying mortgage loans  in
the  FHLMC Certificate group  represented by such  FHLMC Certificate, whether or
not received.  FHLMC  also guarantees  to  each  registered holder  of  a  FHLMC
Certificate  collection  by  such  holder of  all  principal  on  the underlying
mortgage loans, without any offset or deduction, to the extent of such  holder's
pro  rata share thereof, but does not, except  if and to the extent specified in
the related Prospectus Supplement  for a Series  of Certificates, guarantee  the
timely  payment of  scheduled principal.  Under FHLMC's  Gold PC  Program, FHLMC
guarantees the timely payment of principal  based on the difference between  the
pool  factor published in the month preceding  the month of distribution and the
pool factor published in such month of distribution. Pursuant to its guaranties,
FHLMC indemnifies  holders  of  FHLMC Certificates  against  any  diminution  in
principal   by  reason  of   charges  for  property   repairs,  maintenance  and
foreclosure. FHLMC  may remit  the amount  due  on account  of its  guaranty  of
collection  of principal  at any  time after  default on  an underlying mortgage
loan, but not later than  (i) 30 days following  foreclosure sale, (ii) 30  days
following  payment  of  the claim  by  any  mortgage insurer  or  (iii)  30 days
following the expiration of any right of redemption, whichever occurs later, but
in any  event no  later  than one  year  after demand  has  been made  upon  the
mortgagor  for accelerated payment of principal. In taking actions regarding the
collection of principal  after default  on the mortgage  loans underlying  FHLMC
Certificates,  including the timing  of demand for  acceleration, FHLMC reserves
the right to exercise  its judgment with  respect to the  mortgage loans in  the
same manner as for mortgage loans that it has purchased but not sold. The length
of  time  necessary  for FHLMC  to  determine  that a  mortgage  loan  should be
accelerated varies  with the  particular circumstances  of each  mortgagor,  and
FHLMC has not adopted standards which require that the demand be made within any
specified period.
 
     FHLMC  Certificates  are not  guaranteed  by the  United  States or  by any
Federal Home Loan Bank and do not constitute debts or obligations of the  United
States  or  any Federal  Home  Loan Bank.  The  obligations of  FHLMC  under its
guaranty are obligations solely of FHLMC and are not backed by, or entitled  to,
the  full faith and credit of the United States. If FHLMC were unable to satisfy
such obligations, distributions to holders  of FHLMC Certificates would  consist
solely  of payments and  other recoveries on the  underlying mortgage loans and,
accordingly, monthly distributions  to holders  of FHLMC  Certificates would  be
affected by delinquent payments and defaults on such mortgage loans.
 
     Registered  holders  of FHLMC  Certificates are  entitled to  receive their
monthly pro rata  share of  all principal  payments on  the underlying  mortgage
loans  received by FHLMC,  including any scheduled  principal payments, full and
partial prepayments of principal  and principal received by  FHLMC by virtue  of
condemnation,  insurance,  liquidation or  foreclosure,  and repurchases  of the
mortgage loans by FHLMC or the seller  thereof. FHLMC is required to remit  each
registered FHLMC certificateholder's pro rata share of principal payments on the
underlying mortgage loans, interest at the FHLMC pass-through rate and any other
sums  such as prepayment fees, within 60 days of the date on which such payments
are deemed to have been received by FHLMC.
 
     Under FHLMC's Cash Program, there is  no limitation on the amount by  which
interest  rates on the mortgage loans  underlying a FHLMC Certificate may exceed
the pass-through  rate  on the  FHLMC  Certificate. Under  such  program,  FHLMC
purchases  groups of whole mortgage loans  from sellers at specified percentages
of their unpaid principal  balances, adjusted for  accrued or prepaid  interest,
which when applied to the interest rate of the mortgage loans and participations
purchased  results in the  yield (expressed as a  percentage) required by FHLMC.
The required  yield, which  includes a  minimum servicing  fee retained  by  the
servicer,  is calculated using  the outstanding principal  balance. The range of
interest rates on the mortgage loans  and participations in a FHLMC  Certificate
group  under the Cash Program will  vary since mortgage loans and participations
are purchased and assigned to a  FHLMC Certificate group based upon their  yield
to  FHLMC rather  than on  the interest rate  on the  underlying mortgage loans.
Under FHLMC's Guarantor Program, the pass-through rate on a FHLMC Certificate is
 
                                       17
 
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<PAGE>
established based  upon the  lowest  interest rate  on the  underlying  mortgage
loans,  minus a minimum servicing  fee and the amount  of FHLMC's management and
guaranty income as agreed upon between the seller and FHLMC.
 
     FHLMC Certificates  duly  presented for  registration  of ownership  on  or
before the last business day of a month are registered effective as of the first
day  of  the month.  The  first remittance  to a  registered  holder of  a FHLMC
Certificate will be distributed so as to be received normally by the 15th day of
the second month following the month in which the purchaser became a  registered
holder   of  such  FHLMC  Certificate.   Thereafter,  such  remittance  will  be
distributed monthly to the  registered holder so as  to be received normally  by
the  15th day  of each  month. The  Federal Reserve  Bank of  New York maintains
book-entry accounts with respect to FHLMC Certificates sold by FHLMC on or after
January 2, 1985, and makes payments of principal and interest each month to  the
registered holders thereof in accordance with such holders' instructions.
 
     Federal  National Mortgage Association.  FNMA  is a federally chartered and
privately owned corporation  organized and existing  under the Federal  National
Mortgage Association Charter Act, as amended. FNMA was originally established in
1938  as a United States government  agency to provide supplemental liquidity to
the  mortgage  market   and  was  transformed   into  a  stockholder-owned   and
privately-managed corporation by legislation enacted in 1968.
 
     FNMA provides funds to the mortgage market primarily by purchasing mortgage
loans  from lenders,  thereby replenishing  their funds  for additional lending.
FNMA acquires  funds  to  purchase  mortgage  loans  from  many  capital  market
investors  that may  not ordinarily invest  in mortgages,  thereby expanding the
total amount of funds available for housing. Operating nationwide, FNMA helps to
redistribute mortgage funds from capital-surplus to capital-short areas.
 
     FNMA Certificates.  FNMA Certificates are Guaranteed Mortgage  Pass-Through
Certificates  representing fractional undivided interests  in a pool of mortgage
loans formed by FNMA. Each mortgage  loan must meet the applicable standards  of
the  FNMA purchase program. Mortgage loans comprising a pool are either provided
by FNMA from its own portfolio or purchased pursuant to the criteria of the FNMA
purchase program.
 
     Mortgage loans  underlying FNMA  Certificates  held by  a Trust  Fund  will
consist  of  conventional  mortgage  loans,  FHA  Loans  or  VA  Loans. Original
maturities of  substantially all  of the  conventional, level  payment  mortgage
loans  underlying a FNMA Certificate  are expected to be  between either 8 to 15
years or 20 to  40 years. The  original maturities of  substantially all of  the
fixed rate, level payment FHA Loans or VA Loans are expected to be 30 years.
 
     Mortgage loans underlying a FNMA Certificate may have annual interest rates
that  vary by  as much  as two percentage  points from  each other.  The rate of
interest payable on a FNMA Certificate is  equal to the lowest interest rate  of
any  mortgage  loan  in  the  related  pool,  less  a  specified  minimum annual
percentage representing servicing compensation and FNMA's guaranty fee. Under  a
regular servicing option (pursuant to which the mortgagee or each other servicer
assumes the entire risk of foreclosure losses), the annual interest rates on the
mortgage loans underlying a FNMA Certificate will be between 50 basis points and
250  basis  points greater  than is  its  annual pass-through  rate and  under a
special servicing option  (pursuant to which  FNMA assumes the  entire risk  for
foreclosure  losses), the annual interest rates on the mortgage loans underlying
a FNMA  Certificate will  generally be  between 55  basis points  and 255  basis
points  greater than the annual FNMA Certificate pass-through rate. If specified
in the  related  Prospectus  Supplement,  FNMA Certificates  may  be  backed  by
adjustable rate mortgages.
 
     FNMA  guarantees to  each registered holder  of a FNMA  Certificate that it
will distribute  amounts  representing  such  holder's  proportionate  share  of
scheduled  principal and interest  payments at the  applicable pass-through rate
provided for by such FNMA Certificate on the underlying mortgage loans,  whether
or  not received,  and such holder's  proportionate share of  the full principal
amount of any foreclosed or other  finally liquidated mortgage loan, whether  or
not  such principal amount is actually  recovered. The obligations of FNMA under
its guaranties are obligations solely of FNMA and are not backed by, or entitled
to, the full faith and  credit of the United  States. Although the Secretary  of
the Treasury of the United States has discretionary authority to lend FNMA up to
$2.25  billion outstanding at any time, neither the United States nor any agency
thereof is obligated to finance FNMA's operations or to assist FNMA in any other
manner. If FNMA were unable to satisfy its obligations, distributions to holders
of FNMA Certificates would  consist solely of payments  and other recoveries  on
the underlying
 
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<PAGE>
mortgage  loans  and,  accordingly,  monthly distributions  to  holders  of FNMA
Certificates would  be affected  by  delinquent payments  and defaults  on  such
mortgage loans.
 
     FNMA Certificates evidencing interests in pools of mortgage loans formed on
or  after May 1, 1985  (other than FNMA Certificates  backed by pools containing
graduated payment  mortgage  loans  or mortgage  loans  secured  by  multifamily
projects)  are available in book-entry form only. Distributions of principal and
interest on each FNMA Certificate will be made  by FNMA on the 25th day of  each
month  to the persons in whose name the FNMA Certificate is entered in the books
of the Federal Reserve Banks (or registered on the FNMA Certificate register  in
the  case of fully registered FNMA Certificates)  as of the close of business on
the last day of the preceding month. With respect to FNMA Certificates issued in
book-entry form, distributions thereon will be made by wire, and with respect to
fully registered FNMA Certificates, distributions thereon will be made by check.
 
     The FNMA Certificates included in a Trust Fund, and the related  underlying
mortgage  loans,  may  have  characteristics  and  terms  different  from  those
described above. Any such different characteristics and terms will be  described
in the related Prospectus Supplement.
 
     Stripped  Mortgage-Backed Securities.  Agency Securities may consist of one
or more stripped mortgage-backed securities, each as described herein and in the
related Prospectus  Supplement.  Each such  Agency  Security will  represent  an
undivided interest in all or part of either the principal distributions (but not
the interest distributions) or the interest distributions (but not the principal
distributions),  or  in some  specified portion  of  the principal  and interest
distributions (but not all of such distributions) on certain FHLMC, FNMA or GNMA
Certificates. The underlying securities will be held under a trust agreement  by
FHLMC, FNMA or GNMA, each as trustee, or by another trustee named in the related
Prospectus  Supplement. FHLMC, FNMA or GNMA  will guarantee each stripped Agency
Security to the same extent as such entity guarantees the underlying  securities
backing such stripped Agency Security, unless otherwise specified in the related
Prospectus Supplement.
 
     Other   Agency  Securities.    If   specified  in  the  related  Prospectus
Supplement, a Trust  Fund may include  other mortgage pass-through  certificates
issued  or guaranteed by  GNMA, FNMA or  FHLMC. The characteristics  of any such
mortgage  pass-through  certificates  will  be  described  in  such   Prospectus
Supplement.  If  so  specified,  a  combination  of  different  types  of Agency
Securities may be held in a Trust Fund.
 
PRIVATE MORTGAGE-BACKED SECURITIES
 
     Private Mortgage-Backed Securities may consist of (a) mortgage pass-through
certificates or participation certificates evidencing an undivided interest in a
pool of mortgage  loans or  (b) collateralized mortgage  obligations secured  by
mortgage   loans.  Private  Mortgage-Backed   Securities  may  include  stripped
mortgage-backed securities representing an undivided  interest in all or a  part
of  either the principal  distributions (but not  the interest distributions) or
the interest  distributions (but  not the  principal distributions)  or in  some
specified  portion of the  principal and interest distributions  (but not all of
such  distributions)  on   certain  mortgage   loans.  Private   Mortgage-Backed
Securities  will have been issued pursuant to a pooling and servicing agreement,
an indenture  or  similar  agreement  (a  'PMBS  Agreement').  Unless  otherwise
specified  in  the related  Prospectus  Supplement, the  seller/servicer  of the
underlying mortgage loans  will have entered  into the PMBS  Agreement with  the
trustee  under such PMBS Agreement (the 'PMBS Trustee'). The PMBS Trustee or its
agent, or a custodian, will possess  the mortgage loans underlying such  Private
Mortgage-Backed  Security. Mortgage  loans underlying  a Private Mortgage-Backed
Security will be serviced by a servicer (the 'PMBS Servicer') directly or by one
or more subservicers who may be subject to the supervision of the PMBS Servicer.
 
     The issuer of  the Private Mortgage-Backed  Securities (the 'PMBS  Issuer')
will  be  a  financial institution  or  other  entity engaged  generally  in the
business of mortgage  lending, a public  agency or instrumentality  of a  state,
local  or federal government, or a limited purpose corporation organized for the
purpose of, among other  things, establishing trusts  and acquiring and  selling
housing loans to such trusts and selling beneficial interests in such trusts. If
so  specified in the  related Prospectus Supplement,  the PMBS Issuer  may be an
affiliate of the Depositor. The obligations of the PMBS Issuer will generally be
limited to certain  representations and  warranties with respect  to the  assets
conveyed  by it  to the  related Trust Fund.  Unless otherwise  specified in the
related Prospectus Supplement, the PMBS Issuer  will not have guaranteed any  of
the   assets  conveyed  to  the  related  Trust  Fund  or  any  of  the  Private
Mortgage-Backed  Securities  issued  under  the  PMBS  Agreement.  Additionally,
although the mortgage
 
                                       19
 
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<PAGE>
loans  underlying the Private Mortgage-Backed Securities may be guaranteed by an
agency or  instrumentality of  the United  States, the  Private  Mortgage-Backed
Securities themselves will not be so guaranteed.
 
     Distributions  of  principal  and  interest will  be  made  on  the Private
Mortgage-Backed Securities  on the  dates specified  in the  related  Prospectus
Supplement.  The Private Mortgage-Backed  Securities may be  entitled to receive
nominal or no principal distributions  or nominal or no interest  distributions.
Principal and interest distributions will be made on the Private Mortgage-Backed
Securities by the PMBS Trustee or the PMBS Servicer. The PMBS Issuer or the PMBS
Servicer  may  have  the  right  to  repurchase  assets  underlying  the Private
Mortgage-Backed Securities after  a certain  date or  under other  circumstances
specified in the related Prospectus Supplement.
 
     The  mortgage loans  underlying the Private  Mortgage-Backed Securities may
consist of  fixed  rate, level  payment,  fully amortizing  loans  or  graduated
payment  mortgage loans, Buydown Loans, adjustable  rate mortgage loans or loans
having balloon or  other special payment  features. Such mortgage  loans may  be
secured by single family property or multifamily property or by an assignment of
the  proprietary lease  or occupancy agreement  relating to  a specific dwelling
within a Cooperative and the related shares issued by such Cooperative.
 
     The Prospectus Supplement for  a Series for which  the Trust Fund  includes
Private  Mortgage-Backed Securities  will specify (i)  the aggregate approximate
principal amount  and  type of  the  Private Mortgage-Backed  Securities  to  be
included  in the Trust Fund; (ii)  certain characteristics of the mortgage loans
that comprise the underlying assets  for the Private Mortgage-Backed  Securities
including  (A) the payment features of  such mortgage loans, (B) the approximate
aggregate principal balance, if known,  of underlying mortgage loans insured  or
guaranteed by a governmental entity, (C) the servicing fee or range of servicing
fees  with respect to the mortgage loans  and (D) the minimum and maximum stated
maturities of the underlying  mortgage loans at  origination; (iii) the  maximum
original term-to-stated maturity of the Private Mortgage-Backed Securities; (iv)
the  weighted  average term-to-stated  maturity  of the  Private Mortgage-Backed
Securities;  (v)  the   pass-through  or   certificate  rate   of  the   Private
Mortgage-Backed   Securities;   (vi)  the   weighted  average   pass-through  or
certificate rate  of  the Private  Mortgage-Backed  Securities; (vii)  the  PMBS
Issuer,  the PMBS Servicer (if other than  the PMBS Issuer) and the PMBS Trustee
for such Private Mortgage-Backed  Securities; (viii) certain characteristics  of
credit support, if any, such as reserve funds, insurance policies, surety bonds,
letters  of credit or  guaranties relating to the  mortgage loans underlying the
Private Mortgage-Backed Securities or to such Private Mortgage-Backed Securities
themselves; (ix)  the terms  on which  the underlying  mortgage loans  for  such
Private  Mortgage-Backed Securities may, or are  required to, be purchased prior
to their stated maturity or the  stated maturity of the Private  Mortgage-Backed
Securities;  and (x) the  terms on which  mortgage loans may  be substituted for
those originally underlying the Private Mortgage-Backed Securities.
 
SUBSTITUTION OF MORTGAGE ASSETS
 
     Substitution of Mortgage Assets will be permitted in the event of  breaches
of representations and warranties with respect to any original Mortgage Asset or
in  the event the documentation with respect to any Mortgage Asset is determined
by the Trustee to be incomplete. The period during which such substitution  will
be  permitted generally will be indicated  in the related Prospectus Supplement.
The related Prospectus Supplement will describe any other conditions upon  which
Mortgage Assets may be substituted for Mortgage Assets initially included in the
Trust Fund.
 
                                USE OF PROCEEDS
 
     The  net proceeds to be received from  the sale of the Certificates will be
applied by the Depositor to the purchase  of Mortgage Assets or will be used  by
the  Depositor for  general corporate  purposes. The  Depositor expects  to sell
Certificates in Series from time to time, but the timing and amount of offerings
of Certificates will  depend on  a number of  factors, including  the volume  of
Mortgage   Assets  acquired   by  the  Depositor,   prevailing  interest  rates,
availability of funds and general market conditions.
 
                                 THE DEPOSITOR
 
     CWMBS, Inc., a Delaware corporation (the 'Depositor'), was organized on May
27, 1993 for the limited purpose of acquiring, owning and transferring  Mortgage
Assets and selling interests therein or
 
                                       20
 
<PAGE>
<PAGE>
bonds  secured  thereby. The  Depositor is  a  subsidiary of  Countrywide Credit
Industries, Inc., a Delaware corporation. The Depositor maintains its  principal
office  at 155 North Lake Avenue, Pasadena, California 91101-7139. Its telephone
number is (818) 584-3547.
 
     Neither the Depositor nor any of the Depositor's affiliates will ensure  or
guarantee distributions on the Certificates of any Series.
 
                             MORTGAGE LOAN PROGRAM
 
     The  Mortgage  Loans  will have  been  purchased by  the  Depositor, either
directly or through affiliates, from Sellers. Unless otherwise specified in  the
related  Prospectus Supplement, the Mortgage Loans  so acquired by the Depositor
will have been originated in accordance with the underwriting criteria specified
below under 'Underwriting Standards'.
 
UNDERWRITING STANDARDS
 
   
     Unless otherwise  specified  in  the related  Prospectus  Supplement,  each
Seller  will  represent  and  warrant  that  the  origination,  underwriting and
collection practices used  by such  Seller with  respect to  each Mortgage  Loan
originated and/or sold by it to the Depositor or one of its affiliates have been
in  all  respects  legal, prudent  and  customary  in the  mortgage  lending and
servicing business. As  to any  Mortgage Loan insured  by the  FHA or  partially
guaranteed  by  the VA,  the Seller  will  represent that  it has  complied with
underwriting policies of the FHA or the VA, as the case may be.
    
 
     Underwriting standards are applied by or on behalf of a lender to  evaluate
the borrower's credit standing and repayment ability, and the value and adequacy
of  the mortgaged  property as  collateral. In  general, a  prospective borrower
applying for a  mortgage loan  is required to  fill out  a detailed  application
designed to provide to the underwriting officer pertinent credit information. As
part  of the  description of  the borrower's  financial condition,  the borrower
generally is required to provide a current list of assets and liabilities and  a
statement  of income and  expenses, as well  as an authorization  to apply for a
credit  report  which  summarizes  the  borrower's  credit  history  with  local
merchants and lenders and any record of bankruptcy. In most cases, an employment
verification  is obtained from  an independent source  (typically the borrower's
employer), which  verification  reports  the  length  of  employment  with  that
organization,  the borrower's current salary and whether it is expected that the
borrower will continue such employment in the future. If a prospective  borrower
is  self-employed, the borrower may  be required to submit  copies of signed tax
returns. The borrower may also be required to authorize verification of deposits
at financial institutions where the borrower has demand or savings accounts.
 
     In determining the  adequacy of  the mortgaged property  as collateral,  an
appraisal  is made of  each property considered for  financing. The appraiser is
required to inspect the property and verify  that it is in good repair and  that
construction,  if new, has been completed. The  appraisal is based on the market
value of comparable homes, the estimated rental income (if considered applicable
by the appraiser) and the cost of replacing the home.
 
     Once  all  applicable  employment,  credit  and  property  information   is
received,  a  determination  generally is  made  as to  whether  the prospective
borrower has  sufficient monthly  income available  (i) to  meet the  borrower's
monthly  obligations on the proposed mortgage  loan (generally determined on the
basis of the monthly payments due in the year of origination) and other expenses
related to the mortgaged property (such as property taxes and hazard  insurance)
and  (ii) to meet  monthly housing expenses and  other financial obligations and
monthly  living  expenses.  The  underwriting  standards  applied  by   Sellers,
particularly with respect to the level of loan documentation and the mortgagor's
income and credit history, may be varied in appropriate cases where factors such
as low Loan-to-Value Ratios or other favorable credit exist.
 
     In  the case  of a Mortgage  Loan secured  by a leasehold  interest in real
property, the title to which  is held by a third  party lessor, the Seller  will
represent  and warrant, among other things, that the remaining term of the lease
and any sublease is at  least five years longer than  the remaining term on  the
Mortgage Note.
 
     Certain of the types of Mortgage Loans that may be included in a Trust Fund
are  recently developed and may involve  additional uncertainties not present in
traditional types of  loans. For  example, certain  of such  Mortgage Loans  may
provide  for escalating  or variable payments  by the Mortgagor.  These types of
Mortgage Loans are underwritten on the  basis of a judgment that the  Mortgagors
have  the  ability to  make  the monthly  payments  required initially.  In some
instances,
 
                                       21
 
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<PAGE>
however, a Mortgagor's  income may not  be sufficient to  permit continued  loan
payments  as such payments increase.  These types of Mortgage  Loans may also be
underwritten primarily upon the basis of Loan-to-Value Ratios or other favorable
credit factors.
 
QUALIFICATIONS OF SELLERS
 
   
     Unless otherwise  specified  in  the related  Prospectus  Supplement,  each
Seller  will be  required to satisfy  the qualifications set  forth herein. Each
Seller must be an institution experienced in originating and servicing  mortgage
loans  of the  type contained  in the related  Mortgage Pool  in accordance with
accepted practices  and  prudent  guidelines,  and  must  maintain  satisfactory
facilities  to originate and service those mortgage loans. Each Seller must be a
seller/servicer approved  by  either  FNMA  or FHLMC.  Each  Seller  must  be  a
mortgagee  approved by the FHA  or an institution the  deposit accounts in which
are insured by the Federal Deposit Insurance Corporation.
    
 
REPRESENTATIONS BY SELLERS; REPURCHASES
 
     Each Seller will have made representations and warranties in respect of the
Mortgage Loans sold by  such Seller and evidenced  by a Series of  Certificates.
Such  representations and  warranties unless  otherwise provided  in the related
Prospectus Supplement  generally include,  among other  things: (i)  that  title
insurance  (or in the case  of Mortgaged Properties located  in areas where such
policies are generally not  available, an attorney's  certificate of title)  and
any  required hazard insurance policy and Primary Mortgage Insurance Policy were
effective at the origination of each Mortgage Loan other than Cooperative Loans,
and that each policy (or certificate of title as applicable) remained in  effect
on  the date of purchase of the Mortgage Loan from the Seller by or on behalf of
the Depositor; (ii) that the  Seller had good title  to each such Mortgage  Loan
and  such Mortgage  Loan was subject  to no offsets,  defenses, counterclaims or
rights of rescission except to the  extent that any buydown agreement  described
herein may forgive certain indebtedness of a Mortgagor; (iii) that each Mortgage
Loan  constituted a valid first lien on,  or a first perfected security interest
with respect  to, the  Mortgaged  Property (subject  only to  permissible  title
insurance  exceptions, if applicable, and  certain other exceptions described in
the Agreement) and that the Mortgaged Property  was free from damage and was  in
good  repair; (iv) that there were no delinquent tax or assessment liens against
the Mortgaged Property; (v) that no required payment on a Mortgage Loan was more
than 31  days delinquent  at any  time during  the twelve  months prior  to  the
Cut-off  Date; and (vi) that each Mortgage Loan was made in compliance with, and
is  enforceable  under,  all  applicable  local,  state  and  federal  laws  and
regulations in all material respects.
 
     If  so specified in the  related Prospectus Supplement, the representations
and warranties of a Seller in respect of a Mortgage Loan will be made not as  of
the  Cut-off Date but as of the date on which such Seller sold the Mortgage Loan
to the  Depositor  or  one  of  its  affiliates.  Under  such  circumstances,  a
substantial  period of time may  have elapsed between such  date and the date of
initial issuance of the  Series of Certificates evidencing  an interest in  such
Mortgage  Loan.  Since the  representations and  warranties of  a Seller  do not
address events that  may occur following  the sale  of a Mortgage  Loan by  such
Seller, its repurchase obligation described below will not arise if the relevant
event that would otherwise have given rise to such an obligation with respect to
a  Mortgage Loan  occurs after the  date of sale  of such Mortgage  Loan by such
Seller to  the Depositor  or its  affiliates. However,  the Depositor  will  not
include  any Mortgage Loan in  the Trust Fund for  any Series of Certificates if
anything has come to  the Depositor's attention that  would cause it to  believe
that  the representations and  warranties of a  Seller will not  be accurate and
complete in all material  respects in respect  of such Mortgage  Loan as of  the
date  of initial issuance of  the related Series of  Certificates. If the Master
Servicer is also a Seller of Mortgage Loans with respect to a particular Series,
such representations will be in  addition to the representations and  warranties
made by the Master Servicer in its capacity as the Master Servicer.
 
     The  Master Servicer or the Trustee, if  the Master Servicer is the Seller,
will promptly notify the relevant Seller of any breach of any representation  or
warranty  made by it in respect of a Mortgage Loan that materially and adversely
affects the interests of  the Certificateholders in  such Mortgage Loan.  Unless
otherwise  specified in the related Prospectus Supplement, if such Seller cannot
cure such breach within  90 days after  notice from the  Master Servicer or  the
Trustee,  as the case may  be, then such Seller  will be obligated to repurchase
such Mortgage Loan from the Trust Fund  at a price (the 'Purchase Price')  equal
to  100% of  the outstanding  principal balance  thereof as  of the  date of the
repurchase plus accrued interest thereon to the first day of the month in  which
the Purchase Price is to be distributed at
 
                                       22
 
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<PAGE>
the  Mortgage Rate (less any unreimbursed  Advances or amount payable as related
servicing compensation if the Seller is the Master Servicer with respect to such
Mortgage Loan). If a REMIC election is to be made with respect to a Trust  Fund,
unless  otherwise  provided in  the  related Prospectus  Supplement,  the Master
Servicer or a holder  of the related residual  certificate will be obligated  to
pay  any prohibited transaction tax  that may arise in  connection with any such
repurchase. The  Master  Servicer, unless  otherwise  specified in  the  related
Prospectus  Supplement, will be  entitled to reimbursement  for any such payment
from the assets  of the related  Trust Fund or  from any holder  of the  related
residual  certificate. See 'Description  of the Certificates  -- General' herein
and in the  related Prospectus Supplement.  Except in those  cases in which  the
Master  Servicer is the Seller,  the Master Servicer will  be required under the
applicable Agreement to enforce this obligation  for the benefit of the  Trustee
and  the Certificateholders, following the practices it would employ in its good
faith business judgment were it the owner of such Mortgage Loan. This repurchase
obligation will constitute  the sole remedy  available to Certificateholders  or
the Trustee for a breach of representation by a Seller.
 
     Neither  the Depositor nor the Master  Servicer (unless the Master Servicer
is the  Seller) will  be  obligated to  purchase a  Mortgage  Loan if  a  Seller
defaults  on its obligation to do so, and no assurance can be given that Sellers
will carry out their respective repurchase obligations with respect to  Mortgage
Loans.  However, to the extent that a breach of a representation and warranty of
a Seller may also  constitute a breach  of a representation  made by the  Master
Servicer,  the Master  Servicer may  have a  repurchase obligation  as described
below under  'The Pooling  and  Servicing Agreement  -- Assignment  of  Mortgage
Assets'.
 
                        DESCRIPTION OF THE CERTIFICATES
 
     Each  Series of Certificates will be issued pursuant to an Agreement, dated
as of the related Cut-off Date, among the Depositor, the Master Servicer and the
Trustee for the benefit of the holders  of the Certificates of such Series.  The
provisions  of  each  Agreement  will  vary depending  upon  the  nature  of the
Certificates to be issued thereunder and the nature of the related Trust Fund. A
form of an Agreement is an exhibit  to the Registration Statement of which  this
Prospectus  is a part. The following  summaries describe certain provisions that
may appear  in  each  Agreement.  The Prospectus  Supplement  for  a  Series  of
Certificates  will  describe any  provision of  the  Agreement relating  to such
Series that materially differs  from the description  thereof contained in  this
Prospectus.  The summaries do not purport to be complete and are subject to, and
are qualified in their entirety  by reference to, all  of the provisions of  the
Agreement  for  each  Series  of  Certificates  and  the  applicable  Prospectus
Supplement. The  Depositor  will  provide  a  copy  of  the  Agreement  (without
exhibits) relating to any Series without charge upon written request of a holder
of  record of a Certificate  of such Series addressed  to CWMBS, Inc., 155 North
Lake Avenue, Pasadena, California 91101-7139, Attention: Secretary.
 
GENERAL
 
     Unless otherwise specified in  the Prospectus Supplement, the  Certificates
of  each Series will be issued in  either fully registered or book-entry form in
the authorized  denominations specified  in the  related Prospectus  Supplement,
will evidence specified beneficial ownership interests in the related Trust Fund
created  pursuant to the related Agreement and  will not be entitled to payments
in respect of the  assets included in  any other Trust  Fund established by  the
Depositor.  The Certificates will not represent  obligations of the Depositor or
any affiliate  of the  Depositor. The  Mortgage Assets  will not  be insured  or
guaranteed  by  any  governmental  entity  or  other  person,  unless  otherwise
specified in the related Prospectus Supplement. Each Trust Fund will consist of,
to the extent provided  in the related Agreement,  (i) the Mortgage Assets  that
from time to time are subject to the related Agreement (exclusive of any amounts
specified  in the related Prospectus Supplement (the 'Retained Interest')); (ii)
such assets as from  time to time  are required to be  deposited in the  related
Certificate  Account; (iii)  property that secured  a Mortgage Loan  and that is
acquired on behalf of the Certificateholders  by foreclosure or deed in lieu  of
foreclosure; and (iv) any Primary Mortgage Insurance Policies, FHA Insurance and
VA  Guaranties,  and  any other  insurance  policies  or other  forms  of credit
enhancement required to be maintained pursuant  to the related Agreement. If  so
specified  in the related  Prospectus Supplement, a Trust  Fund may also include
one or more of  the following: reinvestment income  on payments received on  the
Mortgage  Assets, a  reserve fund, a  mortgage pool insurance  policy, a special
hazard insurance policy,  a bankruptcy bond,  one or more  letters of credit,  a
surety bond, guaranties or similar instruments or other agreements.
 
                                       23
 
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<PAGE>
     Each  Series of Certificates  will be issued  in one or  more classes. Each
class of  Certificates of  a  Series will  evidence  beneficial ownership  of  a
specified  percentage (which may  be 0%) or portion  of future interest payments
and a specified  percentage (which  may be 0%)  or portion  of future  principal
payments  on  the  Mortgage  Assets  in the  related  Trust  Fund.  A  Series of
Certificates may include one or more classes that are senior in right to payment
to one or more other classes of  Certificates of such Series. Certain Series  or
classes  of Certificates may  be covered by insurance  policies, surety bonds or
other forms of credit enhancement, in each  case as described herein and in  the
related  Prospectus Supplement. One or more  classes of Certificates of a Series
may  be  entitled  to  receive  distributions  of  principal,  interest  or  any
combination  thereof.  Distributions  on one  or  more  classes of  a  Series of
Certificates may  be  made  prior  to  one or  more  other  classes,  after  the
occurrence of specified events, in accordance with a schedule or formula, on the
basis  of collections  from designated  portions of  the Mortgage  Assets in the
related Trust Fund, or on  a different basis, in each  case as specified in  the
related  Prospectus Supplement. The timing and amounts of such distributions may
vary among  classes  or  over  time  as  specified  in  the  related  Prospectus
Supplement.
 
     Unless   otherwise   specified  in   the  related   Prospectus  Supplement,
distributions of principal and interest (or, where applicable, of principal only
or interest only) on  the related Certificates  will be made  by the Trustee  on
each Distribution Date (i.e., monthly, quarterly, semi-annually or at such other
intervals  and on the  dates as are  specified in the  Prospectus Supplement) in
proportion to the  percentages specified in  the related Prospectus  Supplement.
Distributions  will be made to  the persons in whose  names the Certificates are
registered at  the close  of business  on  the dates  specified in  the  related
Prospectus  Supplement (each,  a 'Record Date').  Distributions will  be made by
check or  money order  mailed to  the persons  entitled thereto  at the  address
appearing   in  the  register  maintained   for  holders  of  Certificates  (the
'Certificate Register') or, if specified  in the related Prospectus  Supplement,
in  the case of  Certificates that are  of a certain  minimum denomination, upon
written request by  the Certificateholder,  by wire  transfer or  by such  other
means  as are described therein; provided,  however, that the final distribution
in retirement  of the  Certificates  will be  made  only upon  presentation  and
surrender  of the Certificates at  the office or agency  of the Trustee or other
person specified in the notice to Certificateholders of such final distribution.
 
     The Certificates  will  be  freely transferable  and  exchangeable  at  the
Corporate  Trust Office of  the Trustee as  set forth in  the related Prospectus
Supplement. No service charge will be  made for any registration of exchange  or
transfer of Certificates of any Series, but the Trustee may require payment of a
sum sufficient to cover any related tax or other governmental charge.
 
   
     Under  current law the purchase and holding by or on behalf of any employee
benefit plan or  other retirement arrangement  (including individual  retirement
accounts  and annuities,  Keogh plans and  collective investment  funds in which
such plans,  accounts or  arrangements are  invested) subject  to provisions  of
ERISA  or the Code of certain classes  of Certificates may result in 'prohibited
transactions'  within  the   meaning  of   ERISA  and  the   Code.  See   'ERlSA
Considerations'  herein. Unless  otherwise specified  in the  related Prospectus
Supplement, transfer  of such  Certificates will  not be  registered unless  the
transferee  (i) represents that it  is not, and is  not purchasing on behalf of,
any such plan,  account or arrangement  or (ii) provides  an opinion of  counsel
satisfactory  to  the  Trustee  and  the Depositor  that  the  purchase  of such
Certificates by or on behalf of such plan, account or arrangement is permissible
under applicable law and  will not subject the  Trustee, the Master Servicer  or
the  Depositor to any obligation or liability in addition to those undertaken in
the Agreement.
    
 
     As to each Series, an election may be made to treat the related Trust  Fund
or designated portions thereof as a 'real estate mortgage investment conduit' or
'REMIC'  as defined in the Code.  The related Prospectus Supplement will specify
whether a  REMIC election  is to  be made.  Alternatively, the  Agreement for  a
Series  may provide that a  REMIC election may be made  at the discretion of the
Depositor or the Master Servicer and may be made only if certain conditions  are
satisfied.  As to any  such Series, the  terms and provisions  applicable to the
making of  a  REMIC  election,  as  well as  any  material  federal  income  tax
consequences  to Certificateholders not otherwise  described herein, will be set
forth in the  related Prospectus Supplement.  If such an  election is made  with
respect  to a Series,  one of the  classes will be  designated as evidencing the
sole class of 'residual interests' in the related REMIC, as defined in the Code.
All other classes  of Certificates  in such  a Series  will constitute  'regular
interests'  in the related REMIC, as defined in the Code. As to each Series with
respect to which a REMIC election is to be made, the Master Servicer or a holder
of the  related residual  certificate  will be  obligated  to take  all  actions
required  in  order to  comply  with applicable  laws  and regulations  and will
 
                                       24
 
<PAGE>
<PAGE>
be obligated  to pay  any  prohibited transaction  taxes. The  Master  Servicer,
unless  otherwise  specified  in  the  related  Prospectus  Supplement,  will be
entitled to reimbursement for any such payment from the assets of the Trust Fund
or from any holder of the related residual certificate.
 
DISTRIBUTIONS ON CERTIFICATES
 
     General.  In general, the method of determining the amount of distributions
on a  particular  Series of  Certificates  will depend  on  the type  of  credit
support,  if  any,  that  is  used with  respect  to  such  Series.  See 'Credit
Enhancement' herein and in  the related Prospectus  Supplement. Set forth  below
are  descriptions of various methods that may be used to determine the amount of
distributions on  the  Certificates  of  a  particular  Series.  The  Prospectus
Supplement  for each Series of Certificates will  describe the method to be used
in determining the amount of distributions on the Certificates of such Series.
 
   
     Distributions allocable to  principal of and  interest on the  Certificates
will  be made by  the Trustee out  of, and only  to the extent  of, funds in the
related Certificate Account,  including any funds  transferred from any  Reserve
Fund.  As between Certificates of different classes and as between distributions
of principal (and, if applicable, between distributions of Principal Prepayments
and scheduled payments  of principal)  and interest, distributions  made on  any
Distribution  Date  will  be  applied as  specified  in  the  related Prospectus
Supplement. Unless  otherwise specified  in the  related Prospectus  Supplement,
distributions  to  any  class of  Certificates  will  be made  pro  rata  to all
Certificateholders of that class.
    
 
     Available Funds.  All distributions on  the Certificates of each Series  on
each Distribution Date will be made from the Available Funds, in accordance with
the  terms described in  the related Prospectus Supplement  and specified in the
Agreement. Unless  otherwise  provided  in the  related  Prospectus  Supplement,
'Available  Funds' for each Distribution Date will generally equal the amount on
deposit in the  related Certificate Account  on such Distribution  Date (net  of
related  fees and expenses payable by the related Trust Fund) other than amounts
to be held therein for distribution on future Distribution Dates.
 
     Distributions of  Interest.   Unless  otherwise  specified in  the  related
Prospectus Supplement, interest will accrue on the aggregate Certificate Balance
(or,  in the  case of Certificates  entitled only to  distributions allocable to
interest, the  aggregate notional  amount) of  each class  of Certificates  (the
'Class  Certificate  Balance') entitled  to  interest at  the  Pass-Through Rate
(which may be a fixed rate or a rate adjustable as specified in such  Prospectus
Supplement)  from  the date  and for  the periods  specified in  such Prospectus
Supplement. To the extent funds are available therefor, interest accrued  during
each  such specified period  on each class of  Certificates entitled to interest
(other than a class of Certificates that provides for interest that accrues, but
is not currently payable, referred to hereafter as 'Accrual Certificates')  will
be  distributable on the Distribution Dates  specified in the related Prospectus
Supplement  until  the  Class  Certificate  Balance  of  such  class  has   been
distributed   in  full  or,  in  the  case  of  Certificates  entitled  only  to
distributions allocable to interest, until the aggregate notional amount of such
Certificates is reduced  to zero or  for the  period of time  designated in  the
related   Prospectus  Supplement.  The  original  Certificate  Balance  of  each
Certificate will equal  the aggregate  distributions allocable  to principal  to
which  such Certificate is  entitled. Unless otherwise  specified in the related
Prospectus Supplement, distributions allocable  to interest on each  Certificate
that  is not entitled to distributions allocable to principal will be calculated
based on  the notional  amount of  such Certificate.  The notional  amount of  a
Certificate  will not  evidence an interest  in or  entitlement to distributions
allocable to principal but will be used solely for convenience in expressing the
calculation of interest and for certain other purposes.
 
     With respect to any  class of Accrual Certificates,  any interest that  has
accrued  but is not paid on a given Distribution Date will be added to the Class
Certificate Balance of  such class  of Certificates on  that Distribution  Date.
Unless  otherwise specified in the  related Prospectus Supplement, distributions
of interest on each class of  Accrual Certificates will commence only after  the
occurrence  of the events specified in  such Prospectus Supplement and, prior to
such  time,  the  beneficial  ownership  interest  of  such  class  of   Accrual
Certificates in the Trust Fund, as reflected in the Class Certificate Balance of
such  class of Accrual Certificates, will  increase on each Distribution Date by
the amount of interest that
 
                                       25
 
<PAGE>
<PAGE>
accrued on  such class  of Accrual  Certificates during  the preceding  interest
accrual period but that was not required to be distributed to such class on such
Distribution Date. Any such class of Accrual Certificates will thereafter accrue
interest on its outstanding Class Certificate Balance as so adjusted.
 
     Distributions  of  Principal.   Unless otherwise  specified in  the related
Prospectus  Supplement,  the   Class  Certificate  Balance   of  any  class   of
Certificates  entitled to distributions of principal  will be the original Class
Certificate Balance of such class  of Certificates specified in such  Prospectus
Supplement,  reduced  by  all  distributions reported  to  the  holders  of such
Certificates  as  allocable  to  principal  and  (i)  in  the  case  of  Accrual
Certificates,  unless otherwise specified in  the related Prospectus Supplement,
increased by all  interest accrued but  not then distributable  on such  Accrual
Certificates  and  (ii)  in the  case  of adjustable  rate  Certificates, unless
otherwise specified in the related Prospectus Supplement, subject to the  effect
of  negative amortization.  The related  Prospectus Supplement  will specify the
method by which the amount of principal to be distributed on the Certificates on
each Distribution Date will  be calculated and the  manner in which such  amount
will be allocated among the classes of Certificates entitled to distributions of
principal.
 
     If so provided in the related Prospectus Supplement, one or more classes of
Senior  Certificates  will  be entitled  to  receive all  or  a disproportionate
percentage of the  payments of  principal that  are received  from borrowers  in
advance  of  their  scheduled  due  dates and  are  not  accompanied  by amounts
representing scheduled interest due after the month of such payments ('Principal
Prepayments') in the percentages and under the circumstances or for the  periods
specified  in  such  Prospectus  Supplement. Any  such  allocation  of Principal
Prepayments to such  class or classes  of Certificates will  have the effect  of
accelerating  the amortization of such  Senior Certificates while increasing the
interests  evidenced  by  the  Subordinated  Certificates  in  the  Trust  Fund.
Increasing  the interests of  the Subordinated Certificates  relative to that of
the Senior  Certificates  is  intended  to  preserve  the  availability  of  the
subordination   provided   by   the  Subordinated   Certificates.   See  'Credit
Enhancement -- Subordination' herein and 'Credit Enhancement -- Subordination of
the Subordinated Certificates' in the related Prospectus Supplement.
 
     Unscheduled  Distributions.    If  specified  in  the  related   Prospectus
Supplement,  the Certificates will be subject to receipt of distributions before
the next scheduled Distribution Date under  the circumstances and in the  manner
described  below and in  such Prospectus Supplement.  If applicable, the Trustee
will be required to make  such unscheduled distributions on  the day and in  the
amount  specified in  the related Prospectus  Supplement if,  due to substantial
payments of principal (including Principal Prepayments) on the Mortgage  Assets,
the  Trustee  or the  Master  Servicer determines  that  the funds  available or
anticipated to be available from the Certificate Account and, if applicable, any
Reserve Fund,  may  be  insufficient  to  make  required  distributions  on  the
Certificates  on  such  Distribution  Date. Unless  otherwise  specified  in the
related Prospectus Supplement, the amount  of any such unscheduled  distribution
that  is allocable to principal will not  exceed the amount that would otherwise
have been required  to be distributed  as principal on  the Certificates on  the
next  Distribution Date.  Unless otherwise  specified in  the related Prospectus
Supplement,  all  unscheduled  distributions   will  include  interest  at   the
applicable  Pass-Through  Rate  (if  any)  on  the  amount  of  the  unscheduled
distribution allocable to principal for the period and to the date specified  in
such Prospectus Supplement.
 
     Unless  otherwise  specified  in  the  related  Prospectus  Supplement, all
distributions allocable to  principal in  any unscheduled  distribution will  be
made  in  the same  priority and  manner  as distributions  of principal  on the
Certificates would  have been  made  on the  next  Distribution Date,  and  with
respect  to  Certificates  of  the  same  class,  unscheduled  distributions  of
principal will  be  made  on  a  pro  rata  basis.  Notice  of  any  unscheduled
distribution   will  be  given  by  the  Trustee  prior  to  the  date  of  such
distribution.
 
ADVANCES
 
     Unless otherwise provided in the related Prospectus Supplement, the  Master
Servicer  will be required to advance on  or before each Distribution Date (from
its own funds, funds advanced by Sub-Servicers or funds held in the  Certificate
Account  for future distributions to Certificateholders), an amount equal to the
aggregate of payments  of principal  and interest  that were  delinquent on  the
related  Determination Date, subject to the Master Servicer's determination that
such advances  will be  recoverable out  of  late payments  by obligors  on  the
Mortgage  Assets, Liquidation Proceeds, Insurance  Proceeds or otherwise. In the
case of  Cooperative  Loans,  the  Master Servicer  also  will  be  required  to
 
                                       26
 
<PAGE>
<PAGE>
advance  any  unpaid  maintenance  fees  and  other  charges  under  the related
proprietary leases as specified in the related Prospectus Supplement.
 
     In making Advances, the Master Servicer will endeavor to maintain a regular
flow of scheduled interest and principal payments to Certificateholders,  rather
than  to guarantee or insure against losses.  If Advances are made by the Master
Servicer from cash being held for future distribution to Certificateholders, the
Master Servicer will  replace such funds  on or before  any future  Distribution
Date  to the  extent that  funds in the  applicable Certificate  Account on such
Distribution Date would  be less than  the amount required  to be available  for
distributions   to  Certificateholders  on  such  date.  Any  Advances  will  be
reimbursable to the Master Servicer out  of recoveries on the specific  Mortgage
Assets  with respect to which such Advances  were made (e.g., late payments made
by the related obligors, any related Insurance Proceeds, Liquidation Proceeds or
proceeds of any Mortgage Loan repurchased by the Depositor, a Sub-Servicer or  a
Seller  pursuant to the related Agreement).  In addition, Advances by the Master
Servicer (and any advances by a  Sub-Servicer) also will be reimbursable to  the
Master   Servicer  (or  Sub-Servicer)  from   cash  otherwise  distributable  to
Certificateholders (including Senior Certificateholders) to the extent that  the
Master  Servicer  determines  that any  such  Advances previously  made  are not
ultimately recoverable as described in  the immediately preceding sentence.  The
Master  Servicer  also  will  be  obligated  to  make  Advances,  to  the extent
recoverable out of  Insurance Proceeds,  Liquidation Proceeds  or otherwise,  in
respect  of certain  taxes and  insurance premiums not  paid by  Mortgagors on a
timely basis. Funds so advanced are  reimbursable to the Master Servicer to  the
extent  permitted  by  the Agreement.  If  specified in  the  related Prospectus
Supplement, the  obligations of  the Master  Servicer to  make Advances  may  be
supported by a cash advance reserve fund, a surety bond or other arrangement, in
each case as described in such Prospectus Supplement.
 
REPORTS TO CERTIFICATEHOLDERS
 
     Prior  to or concurrently with each distribution on a Distribution Date and
except as otherwise set forth in an applicable Prospectus Supplement, the Master
Servicer or the Trustee will furnish to each Certificateholder of record of  the
related  Series  a statement  setting forth,  to the  extent applicable  to such
Series of Certificates, among other things:
 
          (i) the amount of such distribution allocable to principal, separately
     identifying the aggregate amount  of any Principal  Prepayments and, if  so
     specified  in  the  related  Prospectus  Supplement,  prepayment  penalties
     included therein;
 
          (ii) the amount of such distribution allocable to interest;
 
          (iii) the amount of any Advance;
 
          (iv) the aggregate amount (a) otherwise allocable to the  Subordinated
     Certificateholders  on such  Distribution Date  and (b)  withdrawn from the
     Reserve Fund, if any,  that is included in  the amounts distributed to  the
     Certificateholders;
 
          (v)  the Class Certificate Balance or notional amount of each class of
     the related Series after giving effect to the distribution of principal  on
     such Distribution Date;
 
          (vi)  the  percentage of  principal  payments on  the  Mortgage Assets
     (excluding prepayments), if any, which each such class will be entitled  to
     receive on the following Distribution Date;
 
          (vii)  the  percentage of  Principal Prepayments  with respect  to the
     Mortgage Assets, if any, which each such class will be entitled to  receive
     on the following Distribution Date;
 
          (viii)  the related amount  of the servicing  compensation retained or
     withdrawn from  the Certificate  Account by  the Master  Servicer, and  the
     amount of additional servicing compensation received by the Master Servicer
     attributable  to  penalties, fees,  excess  Liquidation Proceeds  and other
     similar charges and items;
 
          (ix) the number and aggregate principal balances 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 and delinquent (1) 1 to 30 days,  (2) 31 to 60 days, (3) 61  to
     90  days and (4) 91 or  more days, as of the  close of business on the last
     day of the calendar month preceding such Distribution Date;
 
                                       27
 
<PAGE>
<PAGE>
          (x) the book value of any real estate acquired through foreclosure  or
     grant of a deed in lieu of foreclosure;
 
          (xi)  the Pass-Through  Rate, if  adjusted from  the date  of the last
     statement, of  any  such  class  expected to  be  applicable  to  the  next
     distribution to such class;
 
          (xii)  if applicable, the amount remaining  in the Reserve Fund at the
     close of business on the Distribution Date;
 
          (xiii) the Pass-Through Rate  as of the day  prior to the  immediately
     preceding Distribution Date; and
 
          (xiv)  any amounts remaining under letters of credit, pool policies or
     other forms of credit enhancement.
 
     Where applicable, any amount set forth  above may be expressed as a  dollar
amount  per  single  Certificate of  the  relevant class  having  the Percentage
Interest  specified  in  the  related  Prospectus  Supplement.  The  report   to
Certificateholders  for  any Series  of Certificates  may include  additional or
other information of a similar nature to that specified above.
 
     In addition,  within a  reasonable period  of time  after the  end of  each
calendar   year,  the  Master  Servicer  or   the  Trustee  will  mail  to  each
Certificateholder of record at any time  during such calendar year a report  (a)
as  to  the aggregate  of amounts  reported pursuant  to (i)  and (ii)  for such
calendar year or,  in the event  such person was  a Certificateholder of  record
during  a portion of such calendar year, for the applicable portion of such year
and (b) such other customary information as may be deemed necessary or desirable
for Certificateholders to prepare their tax returns.
 
CATEGORIES OF CLASSES OF CERTIFICATES
 
     In general,  classes  of  pass-through  certificates  fall  into  different
categories.  The following chart identifies and generally defines certain of the
more typical categories. The Prospectus Supplement for a series of  Certificates
may  identify  the  classes  which  comprise such  Series  by  reference  to the
following categories.
 
<TABLE>
<CAPTION>
CATEGORIES OF CLASSES                                              DEFINITION
<S>                             <C>
                                                                 PRINCIPAL TYPES
Accretion Directed............  A class  that  receives  principal  payments  from  the  accreted  interest  from
                                specified Accrual Classes. An Accretion Directed Class also may receive principal
                                payments from principal paid on the underlying Mortgage Assets or other assets of
                                the Trust Fund for the related Series.
Component Certificates........  A  class  consisting of  'Components.'  The Components  of  a class  of Component
                                Certificates may have different principal and/or interest payment characteristics
                                but together constitute a  single class. Each Component  of a class of  Component
                                Certificates  may be identified as falling into  one or more of the categories in
                                this chart.
Notional Amount
  Certificates................  A class having no principal balance and bearing interest on the related  notional
                                amount. The notional amount is used for purposes of the determination of interest
                                distributions.
</TABLE>
 
                                       28
 
<PAGE>
<PAGE>
 
<TABLE>
<CAPTION>
CATEGORIES OF CLASSES                                              DEFINITION
<S>                             <C>
Planned Principal Class (also
  sometimes referred to as
  'PACs').....................  A  class that  is designed  to receive  principal payments  using a predetermined
                                principal balance schedule derived by assuming two constant prepayment rates  for
                                the  underlying  Mortgage  Assets. These  two  rates  are the  endpoints  for the
                                'structuring range'  for  the  Planned Principal  Class.  The  Planned  Principal
                                Classes in any Series of Certificates may be subdivided into different categories
                                (e.g., Primary Planned Principal Classes, Secondary Planned Principal Classes and
                                so  forth) having different effective  structuring ranges and different principal
                                payment priorities. The  structuring range  for the  Secondary Planned  Principal
                                Class  of a  Series of Certificates  will be  narrower than that  for the Primary
                                Planned Principal Class of such Series.
Scheduled Principal Class.....  A class that  is designed  to receive  principal payments  using a  predetermined
                                principal  balance schedule but is not designated as a Planned Principal Class or
                                Targeted Principal Class. In many cases, the schedule is derived by assuming  two
                                constant prepayment rates for the underlying Mortgage Assets. These two rates are
                                the endpoints for the 'structuring range' for the Scheduled Principal Class.
Sequential Pay................  Classes  that receive  principal payments in  a prescribed sequence,  that do not
                                have predetermined principal balance schedules  and that under all  circumstances
                                receive  payments of principal  continuously from the  first Distribution Date on
                                which they receive principal until they are retired. A single class that receives
                                principal payments  before or  after all  other  classes in  the same  Series  of
                                Certificates may be identified as a Sequential Pay Class.
Strip.........................  A  class  that  receives a  constant  proportion,  or 'strip,'  of  the principal
                                payments on the underlying Mortgage Assets or other assets of the Trust Fund.
Support Class (also sometimes
  referred to as 'companion
  classes')...................  A class  that  receives principal  payments  on  any Distribution  Date  only  if
                                scheduled  payments  have  been  made  on  specified  Planned  Principal Classes,
                                Targeted Principal Classes and/or Scheduled Principal Classes.
Targeted Principal Class (also
  sometimes referred to as
  'TACs').....................  A class that  is designed  to receive  principal payments  using a  predetermined
                                principal  balance schedule derived by assuming a single constant prepayment rate
                                for the underlying Mortgage Assets.
 
                                                                 INTEREST TYPES
Fixed Rate....................  A class with an interest rate that is fixed throughout the life of the class.
Floating Rate.................  A class with an  interest rate that resets  periodically based upon a  designated
                                index and that varies directly with changes in such index.
Inverse Floating Rate.........  A  class with an interest  rate that resets periodically  based upon a designated
                                index and that varies inversely with changes in such index.
Variable Rate.................  A class  with an  interest rate  that resets  periodically and  is calculated  by
                                reference  to the  rate or  rates of interest  applicable to  specified assets or
                                instruments (e.g., the Mortgage Rates borne by the underlying Mortgage Loans).
</TABLE>
 
                                       29
 
<PAGE>
<PAGE>
 
<TABLE>
<CAPTION>
CATEGORIES OF CLASSES                                              DEFINITION
<S>                             <C>
Interest Only.................  A class that receives some or all of the interest payments made on the underlying
                                Mortgage Assets or other  assets of the  Trust Fund and  little or no  principal.
                                Interest  Only  Classes have  either a  nominal principal  balance or  a notional
                                amount. A nominal principal balance represents actual principal that will be paid
                                on the class. It is referred to  as nominal since it is extremely small  compared
                                to  other  classes.  A notional  amount  is the  amount  used as  a  reference to
                                calculate the  amount of  interest due  on an  Interest Only  Class that  is  not
                                entitled to any distributions in respect of principal.
Principal Only................  A class that does not bear interest and is entitled to receive only distributions
                                in respect of principal.
Partial Accrual...............  A  class that accretes a portion of the amount of accrued interest thereon, which
                                amount will be added to  the principal balance of  such class on each  applicable
                                Distribution  Date, with the remainder of such accrued interest to be distributed
                                currently as  interest  on  such  class. Such  accretion  may  continue  until  a
                                specified event has occurred or until such Partial Accrual Class is retired.
Accrual.......................  A  class that accretes the amount  of accrued interest otherwise distributable on
                                such class, which amount will be added  as principal to the principal balance  of
                                such  class on  each applicable  Distribution Date.  Such accretion  may continue
                                until some specified event has occurred or until such Accrual Class is retired.
</TABLE>
 
INDICES APPLICABLE TO FLOATING RATE AND INVERSE FLOATING RATE CLASSES
 
LIBOR
 
     Unless otherwise specified  in the  related Prospectus  Supplement, on  the
LIBOR  Determination Date for each class of Certificates of a Series as to which
the applicable interest rate is determined by reference to an index  denominated
as  LIBOR,  the Person  designated in  the  related Agreement  (the 'Calculation
Agent') will determine LIBOR by reference to the quotations, as set forth on the
Reuters  Screen  LIBO  Page  (as  defined  in  the  International  Swap  Dealers
Association,  Inc.  Code of  Standard  Wording, Assumptions  and  Provisions for
Swaps, 1986 Edition),  offered by  the principal London  office of  each of  the
designated reference banks meeting the criteria set forth herein (the 'Reference
Banks')  for making one-month United States  dollar deposits in leading banks in
the London  Interbank market,  as of  11:00  a.m. (London  time) on  such  LIBOR
Determination  Date. In  lieu of relying  on the quotations  for those Reference
Banks that appear at such time on the Reuters Screen LIBO Page, the  Calculation
Agent  will  request  each  of  the  Reference  Banks  to  provide  such offered
quotations at such time.
 
     LIBOR  will  be  established  by  the  Calculation  Agent  on  each   LIBOR
Determination Date as follows:
 
          (a)  If on  any LIBOR Determination  Date two or  more Reference Banks
     provide such offered quotations, LIBOR for the next Interest Accrual Period
     shall be the arithmetic mean of such offered quotations (rounded upwards if
     necessary to the nearest whole multiple of 1/32%).
 
          (b) If  on  any LIBOR  Determination  Date only  one  or none  of  the
     Reference  Banks  provides  such  offered quotations,  LIBOR  for  the next
     Interest Accrual Period shall  be whichever is 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 Calculation Agent determines to be either (i) the arithmetic mean
     (rounded  upwards if necessary  to the nearest whole  multiple of 1/32%) of
     the one-month United States dollar lending  rates that New York City  banks
     selected  by  the  Calculation Agent  are  quoting, on  the  relevant LIBOR
     Determination Date, to the principal London offices of at least two of  the
     Reference  Banks  to  which such  quotations  are,  in the  opinion  of the
     Calculation Agent being so made, or (ii) in the
 
                                       30
 
<PAGE>
<PAGE>
     event that the Calculation Agent can determine no such arithmetic mean, the
     lowest one-month  United States  dollar lending  rate which  New York  City
     banks  selected  by  the  Calculation  Agent  are  quoting  on  such  LIBOR
     Determination Date to leading European banks.
 
          (c) If on any  LIBOR Determination Date for  a class specified in  the
     related  Prospectus Supplement,  the Calculation  Agent 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, LIBOR shall be deemed to be the
     per annum rate specified as such in the related Prospectus Supplement.
 
     Each  Reference Bank (i) shall be a leading bank engaged in transactions in
Eurodollar deposits in  the international  Eurocurrency market;  (ii) shall  not
control,  be  controlled by,  or be  under common  control with  the Calculation
Agent; and (iii) shall have an established  place of business in London. If  any
such  Reference  Bank  should  be unwilling  or  unable  to act  as  such  or if
appointment of  any such  Reference  Bank is  terminated, another  leading  bank
meeting the criteria specified above will be appointed.
 
     The  establishment  of  LIBOR  on  each  LIBOR  Determination  Date  by the
Calculation Agent and its calculation of the rate of interest for the applicable
classes for  the  related Interest  Accrual  Period  shall (in  the  absence  of
manifest error) be final and binding.
 
COFI
 
     The  Eleventh District  Cost of  Funds Index  is designed  to represent the
monthly weighted  average cost  of funds  for savings  institutions in  Arizona,
California  and Nevada that are member institutions of the Eleventh Federal Home
Loan Bank  District (the  'Eleventh District').  The Eleventh  District Cost  of
Funds Index for a particular month reflects the interest costs paid on all types
of  funds held  by Eleventh  District member  institutions and  is calculated by
dividing the cost of  funds by the  average of the total  amount of those  funds
outstanding  at the end of that month and of the prior month and annualizing and
adjusting the result  to reflect  the actual number  of days  in the  particular
month.  If necessary, before these calculations  are made, the component figures
are adjusted  by the  Federal Home  Loan  Bank of  San Francisco  ('FHLBSF')  to
neutralize the effect of events such as member institutions leaving the Eleventh
District  or acquiring institutions outside  the Eleventh District. The Eleventh
District Cost of Funds Index is weighted to reflect the relative amount of  each
type  of funds held  at the end of  the relevant month.  The major components of
funds of Eleventh District member  institutions are: (i) savings deposits,  (ii)
time  deposits, (iii)  FHLBSF advances, (iv)  repurchase agreements  and (v) all
other borrowings. Because the component funds represent a variety of  maturities
whose  costs may  react in different  ways to changing  conditions, the Eleventh
District Cost of Funds Index does not necessarily reflect current market rates.
 
     A number of factors affect the performance of the Eleventh District Cost of
Funds Index, which may cause it to move in a manner different from indices  tied
to  specific  interest rates,  such as  United States  Treasury Bills  or LIBOR.
Because the liabilities upon which the Eleventh District Cost of Funds Index  is
based  were issued  at various  times under  various market  conditions and with
various  maturities,  the  Eleventh  District  Cost  of  Funds  Index  may   not
necessarily  reflect the prevailing market interest  rates on new liabilities of
similar maturities. Moreover,  as stated  above, the Eleventh  District Cost  of
Funds  Index is  designed to  represent the average  cost of  funds for Eleventh
District savings institutions for the  month prior to the  month in which it  is
due to be published. Additionally, the Eleventh District Cost of Funds Index may
not  necessarily move  in the  same direction  as market  interest rates  at all
times, since as  longer term deposits  or borrowings mature  and are renewed  at
prevailing  market interest rates, the Eleventh  District Cost of Funds Index is
influenced by the  differential between  the prior and  the new  rates on  those
deposits  or borrowings. In addition, movements of the Eleventh District Cost of
Funds Index, as compared to other  indices tied to specific interest rates,  may
be  affected by changes instituted by the FHLBSF in the method used to calculate
the Eleventh District Cost of Funds Index.
 
     The FHLBSF  publishes the  Eleventh District  Cost of  Funds Index  in  its
monthly Information Bulletin. Any individual may request regular receipt by mail
of Information Bulletins by writing the Federal Home Loan Bank of San Francisco,
P.O. Box 7948, 600 California Street, San Francisco,
 
                                       31
 
<PAGE>
<PAGE>
California  94120, or by  calling (415) 616-1000. The  Eleventh District Cost of
Funds Index may also be obtained by calling the FHLBSF at (415) 616-2600.
   
    
 
     The FHLBSF  has  stated  in  its Information  Bulletin  that  the  Eleventh
District  Cost of Funds Index for a month 'will be announced on or near the last
working day'  of  the  following month  and  also  has stated  that  it  'cannot
guarantee  the announcement'  of such index  on an  exact date. So  long as such
index for  a month  is  announced on  or  before the  tenth  day of  the  second
following month, the interest rate for each class of Certificates of a Series as
to  which the applicable  interest rate is  determined by reference  to an index
denominated as COFI  (each, a  class of  'COFI Certificates')  for the  Interest
Accrual  Period commencing in such  second following month will  be based on the
Eleventh District  Cost  of Funds  Index  for  the second  preceding  month.  If
publication  is delayed beyond such tenth day,  such interest rate will be based
on the Eleventh District Cost of Funds Index for the third preceding month.
 
     Unless otherwise specified in the related Prospectus Supplement, if on  the
tenth  day of  the month in  which any  Interest Accrual Period  commences for a
class of COFI Certificates the most recently published Eleventh District Cost of
Funds Index relates to a month prior to the third preceding month, the index for
such current Interest Accrual  Period and for  each succeeding Interest  Accrual
Period will, except as described in the next to last sentence of this paragraph,
be  based on  the National  Monthly Median Cost  of Funds  Ratio to SAIF-Insured
Institutions (the 'National  Cost of Funds  Index') published by  the Office  of
Thrift  Supervision (the  'OTS') for  the third  preceding month  (or the fourth
preceding month if  the National  Cost of Funds  Index for  the third  preceding
month  has not been published on such  tenth day of an Interest Accrual Period).
Information on the National Cost of Funds  Index may be obtained by writing  the
OTS  at 1700 G Street,  N.W., Washington, D.C. 20552  or calling (202) 906-6677,
and the current National Cost  of Funds Index may  be obtained by calling  (202)
906-6988.  If on any  such tenth day of  the month in  which an Interest Accrual
Period commences  the  most recently  published  National Cost  of  Funds  Index
relates to a month prior to the fourth preceding month, the applicable index for
such Interest Accrual Period and each succeeding Interest Accrual Period will be
based  on LIBOR, as determined  by the Calculation Agent  in accordance with the
Agreement relating to such  Series of Certificates. A  change of index from  the
Eleventh  District Cost of Funds Index to  an alternative index will result in a
change in the index level, and, particularly if LIBOR is the alternative  index,
could increase its volatility.
 
     The  establishment of COFI by the  Calculation Agent and its calculation of
the rates  of interest  for  the applicable  classes  for the  related  Interest
Accrual Period shall (in the absence of manifest error) be final and binding.
 
Treasury Index
 
     Unless  otherwise specified  in the  related Prospectus  Supplement, on the
Treasury Index Determination Date for each class of Certificates of a Series  as
to  which the applicable  interest rate is  determined by reference  to an index
denominated as  a  Treasury Index,  the  Calculation Agent  will  ascertain  the
Treasury  Index for Treasury securities of the  maturity and for the period (or,
if applicable,  date) specified  in the  related Prospectus  Supplement.  Unless
otherwise specified in the related Prospectus Supplement, the Treasury Index for
any  period means  the average  of the  yield for  each business  day during the
period specified  therein (and  for any  date means  the yield  for such  date),
expressed  as  a per  annum  percentage rate,  on  (i) U.S.  Treasury securities
adjusted to the 'constant  maturity' (as further  described below) specified  in
such  Prospectus Supplement or  (ii) if no 'constant  maturity' is so specified,
U.S. Treasury securities  trading on  the secondary market  having the  maturity
specified  in  such Prospectus  Supplement,  in each  case  as published  by the
Federal Reserve Board  in its  Statistical Release No.  H.15 (519).  Statistical
Release No. H.15 (519) is published on Monday or Tuesday of each week and may be
obtained  by  writing or  calling the  Publications Department  at the  Board of
Governors of the Federal  Reserve System, 21st and  C Streets, Washington,  D.C.
20551  (202) 452-3244. If the Calculation Agent has not yet received Statistical
Release No. H.15 (519) for such week, then it will use such Statistical  Release
from the immediately preceding week.
 
     Yields  on U.S. Treasury securities at 'constant maturity' are derived from
the U.S. Treasury's daily yield curve. This curve, which relates the yield on  a
security  to its time to maturity, is based  on the closing market bid yields on
actively traded Treasury securities in the over-the-counter market. These market
yields are calculated  from composites  of quotations reported  by five  leading
U.S. Government
 
                                       32
 
<PAGE>
<PAGE>
securities dealers to the Federal Reserve Bank of New York. This method provides
a  yield for a  given maturity even if  no security with  that exact maturity is
outstanding. In the event that the Treasury Index is no longer published, a  new
index  based  upon  comparable  data  and  methodology  will  be  designated  in
accordance with the Agreement relating to the particular Series of Certificates.
The Calculation Agent's determination of the Treasury Index, and its calculation
of the rates  of interest for  the applicable classes  for the related  Interest
Accrual Period shall (in the absence of manifest error) be final and binding.
 
Prime Rate
 
     Unless  otherwise specified  in the  related Prospectus  Supplement, on the
Prime Rate Determination Date for each class  of Certificates of a Series as  to
which  the  applicable interest  rate  is determined  by  reference to  an index
denominated as the Prime  Rate, the Calculation Agent  will ascertain the  Prime
Rate  for the related Interest Accrual Period. Unless otherwise specified in the
related Prospectus Supplement,  the Prime  Rate for an  Interest Accrual  Period
will  be the 'Prime Rate' as published in  the 'Money Rates' section of The Wall
Street Journal (or  if not  so published,  the 'Prime  Rate' as  published in  a
newspaper  of general circulation selected by  the Calculation Agent in its sole
discretion) on the related Prime Rate Determination Date. If a prime rate  range
is  given, then the  average of such range  will be used. In  the event that the
Prime Rate is no longer  published, a new index  based upon comparable data  and
methodology  will be designated in accordance with the Agreement relating to the
particular Series of Certificates. The Calculation Agent's determination of  the
Prime Rate and its calculation of the rates of interest for the related Interest
Accrual Period shall (in the absence of manifest error) be final and binding.
 
BOOK-ENTRY CERTIFICATES
 
     If  so specified in the related  Prospectus Supplement, one or more classes
of the Certificates of any Series  (each, a class of 'Book-Entry  Certificates')
may  be initially  issued through  the book-entry  facilities of  The Depository
Trust Company (together with any successor depository selected by the Depositor,
the 'Depository'). Each  class of Book-Entry  Certificates of a  Series will  be
issued  in  one or  more certificates  which equal  the aggregate  initial Class
Certificate Balance (as  defined herein) of  each such class  and which will  be
held  by a nominee of  the Depository. Unless otherwise  provided in the related
Prospectus Supplement,  the following  generally describes  the procedures  that
will be applicable to any class of Book-Entry Certificates.
 
     Beneficial  interests in  the Book-Entry Certificates  of a  Series will be
held  indirectly  by  investors  through   the  book-entry  facilities  of   the
Depository, as described herein. Investors may hold such beneficial interests in
the  Book-Entry Certificates  in minimum denominations  representing an original
principal  amount  of   $1,000  and  integral   multiples  in  excess   thereof.
Accordingly,  the Depository  or its  nominee is  expected to  be the  holder of
record of  the Book-Entry  Certificates. Except  as described  below, no  person
acquiring a Book-Entry Certificate (each, a 'beneficial owner') will be entitled
to  receive a physical certificate  representing such Certificate (a 'Definitive
Certificate').
 
     The beneficial  owner's  ownership  of a  Book-Entry  Certificate  will  be
recorded on the records of the brokerage firm, bank, thrift institution or other
financial  intermediary (each,  a 'Financial  Intermediary') that  maintains the
beneficial  owner's  account   for  such   purpose.  In   turn,  the   Financial
Intermediary's  ownership of such Book-Entry Certificate will be recorded on the
records of the Depository (or of a participating firm that acts as agent for the
Financial Intermediary, whose interest will in  true be recorded on the  records
of  the Depository,  if the beneficial  owner's Financial Intermediary  is not a
Depository participant).  Therefore,  the  beneficial owner  must  rely  on  the
foregoing  procedures  to  evidence  its beneficial  ownership  of  a Book-Entry
Certificate. Beneficial  ownership  of  a Book-Entry  Certificate  may  only  be
transferred  by compliance with the  procedures of such Financial Intermediaries
and Depository participants.
 
     In accordance with  its normal  procedures, the Depository  is expected  to
record  the  positions held  by each  Depository  participant in  the Book-Entry
Certificates, whether  held for  its own  account or  as a  nominee for  another
person.  In  general, beneficial  ownership of  Book-Entry Certificates  will be
subject to the rules,  regulations and procedures  governing the Depository  and
Depository participants as in effect from time to time.
 
                                       33
 
<PAGE>
<PAGE>
     Distributions   on  the  Book-Entry  Certificates  will  be  made  on  each
Distribution Date  by the  Trustee to  the Depository.  The Depository  will  be
responsible  for crediting the  amount of such  payments to the  accounts of the
applicable Depository participants  in accordance with  the Depository's  normal
procedures.  Each Depository participant will be responsible for disbursing such
payments to  the  beneficial  owners  of the  Book-Entry  Certificates  that  it
represents  and to each Financial Intermediary for  which it acts as agent. Each
such Financial  Intermediary will  be responsible  for disbursing  funds to  the
beneficial owners of the Book-Entry Certificates that it represents.
 
     Under a book-entry format, beneficial owners of the Book-Entry Certificates
may  experience some delay in their receipt  of payments, since payments will be
forwarded by the Trustee to the Depository  or its nominee, as the case may  be,
as  holder of record of the  Book-Entry Certificates. Because the Depository can
act only on  behalf of  Financial Intermediaries,  the ability  of a  beneficial
owner  to  pledge Book-Entry  Certificates to  persons or  entities that  do not
participate in the Depository  system, or otherwise take  actions in respect  of
such  Book-Entry  Certificates,  may be  limited  due  to the  lack  of physical
certificates for  such Book-Entry  Certificates. In  addition, issuance  of  the
Book-Entry  Certificates in  book-entry form  may reduce  the liquidity  of such
Certificates in the secondary  market since certain  potential investors may  be
unwilling  to  purchase  Certificates  for  which  they  cannot  obtain physical
certificates.
 
     Unless and until Definitive Certificates are issued, it is anticipated that
the  only  'Certificateholder'  of  the  Book-Entry  Certificates  will  be  the
Depository or its nominee. Beneficial owners of the Book-Entry Certificates will
not  be Certificateholders, as that term will  be used in the Agreement relating
to such series of Certificates. Beneficial owners are only permitted to exercise
the rights of Certificateholders indirectly through Financial Intermediaries and
the Depository. Monthly and annual reports on the related Trust Fund provided to
the Depository or its nominee,  as the case may be,  as holder of record of  the
Book-Entry  Certificates,  may  be  made  available  to  beneficial  owners upon
request, in accordance with the  rules, regulations and procedures creating  and
affecting   the  Depository,  and  to  the  Financial  Intermediaries  to  whose
Depository accounts the  Book-Entry Certificates of  such beneficial owners  are
credited.
 
     Unless otherwise specified in the related Prospectus Supplement, unless and
until  Definitive Certificates are  issued, the Depository  will take any action
permitted to  be  taken by  the  holders of  the  Book-Entry Certificates  of  a
particular  Series under the related  Agreement only at the  direction of one or
more Financial  Intermediaries  to  whose Depository  accounts  such  Book-Entry
Certificates  are credit to the extent that  such actions are taken on behalf of
Financial Intermediaries whose holdings include such Book-Entry Certificates.
 
     Unless otherwise specified in the related Prospectus Supplement, Definitive
Certificates will be issued to beneficial owners of Book-Entry Certificates,  or
their nominees, rather than to the Depository, only if (a) the Depository or the
Depositor  advises  the Trustee  in  writing that  the  Depository is  no longer
willing, qualified or able to discharge properly its responsibilities as nominee
and depository with respect to the Book-Entry Certificates and the Depositor  or
the Trustee is unable to locate a qualified successor; (b) the Depositor, at its
sole  option, elects to terminate the  book-entry system through the Depository;
or (c)  after  the occurrence  of  an Event  of  Default, beneficial  owners  of
Certificates  representing  not  less  than  51%  of  the  aggregate  Percentage
Interests evidenced by each class of  Certificates of the related Series  issued
as  Book-Entry Certificates  advise the Trustee  and the  Depository through the
Financial Intermediaries in writing that the continuation of a book-entry system
through the  Depository  (or a  successor  thereto) is  no  longer in  the  best
interests of the beneficial owners.
 
     Upon  the  occurrence of  any of  the events  described in  the immediately
preceding paragraph,  the Trustee  will  be required  to notify  all  beneficial
owners  of  the occurrence  of  such event  and  the availability  of Definitive
Certificates. Upon  surrender by  the Depository  of the  global certificate  or
certificates  representing  the  Book-Entry  Certificates  and  instructions for
re-registration,  the  Trustee  will  issue  the  Definitive  Certificates,  and
thereafter   the  Trustee  will   recognize  the  holders   of  such  Definitive
Certificates as Certificateholders under the  Agreement relating to such  Series
of Certificates.
 
                                       34
 
<PAGE>
<PAGE>
                               CREDIT ENHANCEMENT
 
GENERAL
 
     Credit enhancement may be provided with respect to one or more classes of a
Series  of Certificates or  with respect to  the Mortgage Assets  in the related
Trust Fund.  Credit  enhancement may  be  in the  form  of a  limited  financial
guaranty  policy issued by an entity named in the related Prospectus Supplement,
the subordination of one or more classes of the Certificates of such Series, the
establishment of one or more reserve funds, the use of a cross-support  feature,
use  of  a  mortgage  pool insurance  policy,  bankruptcy  bond,  special hazard
insurance policy, surety bond, letter of credit, guaranteed investment  contract
or  other  method  of credit  enhancement  described in  the  related Prospectus
Supplement, or any combination of  the foregoing. Unless otherwise specified  in
the related Prospectus Supplement, no credit enhancement will provide protection
against all risks of loss or guarantee repayment of the entire principal balance
of  the  Certificates and  interest thereon.  If losses  occur which  exceed the
amount covered by  credit enhancement  or which are  not covered  by the  credit
enhancement,   Certificateholders  will  bear  their   allocable  share  of  any
deficiencies.
 
SUBORDINATION
 
     If so specified in the related Prospectus Supplement, the rights of holders
of  one  or  more  classes  of  Subordinated  Certificates  (the   'Subordinated
Certificateholders') will be subordinate to the rights of holders of one or more
other  classes of Senior Certificates  (the 'Senior Certificateholders') of such
Series  to   distributions  in   respect  of   scheduled  principal,   Principal
Prepayments,  interest or any combination thereof that otherwise would have been
payable to holders of Subordinated  Certificates under the circumstances and  to
the  extent specified in the related  Prospectus Supplement. If specified in the
related Prospectus Supplement, delays  in receipt of  scheduled payments on  the
Mortgage  Assets and losses  with respect to  the Mortgage Assets  will be borne
first by the various classes of Subordinated Certificates and thereafter by  the
various classes of Senior Certificates, in each case under the circumstances and
subject  to the limitations specified in such related Prospectus Supplement. The
aggregate distributions in respect of delinquent payments on the Mortgage Assets
over the lives  of the  Certificates or  at any  time, the  aggregate losses  in
respect  of Mortgage Assets which must be borne by the Subordinated Certificates
by virtue  of  subordination  and  the amount  of  the  distributions  otherwise
distributable  to the Subordinated Certificateholders that will be distributable
to Senior  Certificateholders  on  any  Distribution  Date  may  be  limited  as
specified  in the related  Prospectus Supplement. If  aggregate distributions in
respect of delinquent  payments on the  Mortgage Assets or  aggregate losses  in
respect  of such  Mortgage Assets  were to  exceed the  amount specified  in the
related Prospectus Supplement, Senior Certificateholders would experience losses
on the Certificates.
 
     If specified  in  the related  Prospectus  Supplement, various  classes  of
Senior  Certificates and Subordinated Certificates may themselves be subordinate
in their right to receive certain  distributions to other classes of Senior  and
Subordinated  Certificates, respectively,  through a cross  support mechanism or
otherwise.
 
     As between  classes  of  Senior  Certificates and  as  between  classes  of
Subordinated Certificates, distributions may be allocated among such classes (i)
in  the order  of their scheduled  final distribution dates,  (ii) in accordance
with a schedule or  formula, (iii) in  relation to the  occurrence of events  or
(iv)  otherwise, in each case as specified in the related Prospectus Supplement.
As  between   classes  of   Subordinated   Certificates,  payments   to   Senior
Certificateholders  on account  of delinquencies or  losses and  payments to the
Reserve  Fund  will  be  allocated  as  specified  in  the  related   Prospectus
Supplement.
 
MORTGAGE POOL INSURANCE POLICIES
 
     If  specified in the  related Prospectus Supplement  relating to a Mortgage
Pool, a  separate  mortgage  pool insurance  policy  ('Mortgage  Pool  Insurance
Policy')  will be obtained for the Mortgage  Pool and issued by the insurer (the
'Pool  Insurer')  named  in  such  Prospectus  Supplement.  Each  Mortgage  Pool
Insurance Policy will, subject to the limitations described below, cover loss by
reason of default in payment on Mortgage Loans in the Mortgage Pool in an amount
equal  to a percentage specified in  such Prospectus Supplement of the aggregate
principal balance  of such  Mortgage Loans  on the  Cut-off Date  which are  not
covered  as to their  entire outstanding principal  balances by Primary Mortgage
Insurance
 
                                       35
 
<PAGE>
<PAGE>
Policies. As more fully described below, the Master Servicer will present claims
thereunder to  the  Pool  Insurer on  behalf  of  itself, the  Trustee  and  the
Certificateholders.  The  Mortgage  Pool Insurance  Policies,  however,  are not
blanket policies  against  loss,  since  claims  thereunder  may  be  made  only
respecting  particular defaulted  Mortgage Loans  and only  upon satisfaction of
certain conditions precedent described below. Unless otherwise specified in  the
related  Prospectus Supplement,  the Mortgage  Pool Insurance  Policies will not
cover losses due  to a  failure to  pay or  denial of  a claim  under a  Primary
Mortgage Insurance Policy.
 
     Unless  otherwise  specified  in the  related  Prospectus  Supplement, each
Mortgage Pool  Insurance Policy  will  provide that  no  claims may  be  validly
presented unless (i) any required Primary Mortgage Insurance Policy is in effect
for  the defaulted Mortgage Loan  and a claim thereunder  has been submitted and
settled; (ii) hazard insurance on the  related Mortgaged Property has been  kept
in  force and real  estate taxes and other  protection and preservation expenses
have been paid; (iii) if there has been physical loss or damage to the Mortgaged
Property, it has been  restored to its physical  condition (reasonable wear  and
tear  excepted) at the time of issuance of  the policy; and (iv) the insured has
acquired good and merchantable title to the Mortgaged Property free and clear of
liens  except  certain  permitted  encumbrances.  Upon  satisfaction  of   these
conditions,  the Pool Insurer  will have the  option either (a)  to purchase the
Mortgaged Property at  a price  equal to the  principal balance  of the  related
Mortgage  Loan plus accrued and unpaid interest at the Mortgage Rate to the date
of such purchase and certain expenses incurred by the Master Servicer on  behalf
of  the Trustee and Certificateholders or (b) to pay the amount by which the sum
of the principal balance of the defaulted Mortgage Loan plus accrued and  unpaid
interest  at the  Mortgage Rate  to the  date of  payment of  the claim  and the
aforementioned expenses exceeds the proceeds  received from an approved sale  of
the Mortgaged Property, in either case net of certain amounts paid or assumed to
have  been  paid under  the related  Primary Mortgage  Insurance Policy.  If any
Mortgaged Property is  damaged, and proceeds,  if any, from  the related  hazard
insurance   policy  or  the  applicable  Special  Hazard  Insurance  Policy  are
insufficient to restore the damaged property to a condition sufficient to permit
recovery under the Mortgage Pool Insurance Policy, the Master Servicer will  not
be  required to expend its  own funds to restore  the damaged property unless it
determines  that   (i)  such   restoration  will   increase  the   proceeds   to
Certificateholders  on liquidation of  the Mortgage Loan  after reimbursement of
the Master Servicer for its expenses and (ii) such expenses will be  recoverable
by  it through proceeds of the sale of the Mortgaged Property or proceeds of the
related Mortgage Pool Insurance Policy or any related Primary Mortgage Insurance
Policy.
 
     Unless  otherwise  specified  in  the  related  Prospectus  Supplement,  no
Mortgage  Pool Insurance Policy will insure (and many Primary Mortgage Insurance
Policies do not insure)  against loss sustained by  reason of a default  arising
from,  among  other  things,  (i)  fraud or  negligence  in  the  origination or
servicing of a Mortgage Loan, including misrepresentation by the Mortgagor,  the
originator  or persons involved  in the origination thereof,  or (ii) failure to
construct a Mortgaged Property  in accordance with  plans and specifications.  A
failure  of coverage attributable to one of the foregoing events might result in
a breach of the  related Seller's representations described  above and, in  such
event, might give rise to an obligation on the part of such Seller to repurchase
the  defaulted Mortgage Loan  if the breach  cannot be cured  by such Seller. No
Mortgage Pool Insurance Policy will  cover (and many Primary Mortgage  Insurance
Policies do not cover) a claim in respect of a defaulted Mortgage Loan occurring
when  the servicer of such Mortgage Loan,  at the time of default or thereafter,
was not approved by the applicable insurer.
 
     Unless otherwise  specified  in  the  related  Prospectus  Supplement,  the
original  amount of coverage  under each Mortgage Pool  Insurance Policy will be
reduced over the life of the related Certificates by the aggregate dollar amount
of claims  paid less  the aggregate  of the  net amounts  realized by  the  Pool
Insurer upon disposition of all foreclosed properties. The amount of claims paid
will include certain expenses incurred by the Master Servicer as well as accrued
interest  on delinquent  Mortgage Loans  to the  date of  payment of  the claim,
unless otherwise specified in the related Prospectus Supplement. Accordingly, if
aggregate net claims  paid under any  Mortgage Pool Insurance  Policy reach  the
original  policy limit, coverage under that  Mortgage Pool Insurance Policy will
be exhausted and any further losses will be borne by the Certificateholders.
 
                                       36
 
<PAGE>
<PAGE>
SPECIAL HAZARD INSURANCE POLICIES
 
     If specified  in  the related  Prospectus  Supplement, a  separate  Special
Hazard  Insurance Policy  will be  obtained for  the Mortgage  Pool and  will be
issued by the insurer  (the 'Special Hazard Insurer')  named in such  Prospectus
Supplement.  Each Special Hazard  Insurance Policy will,  subject to limitations
described below, protect holders  of the related Certificates  from (i) loss  by
reason  of damage to  Mortgaged Properties caused  by certain hazards (including
earthquakes and, to a limited extent, tidal waves and related water damage or as
otherwise specified in  the related Prospectus  Supplement) not insured  against
under  the standard form of hazard insurance policy for the respective states in
which the Mortgaged Properties are located or under a flood insurance policy  if
the  Mortgaged Property is located in a federally designated flood area and (ii)
loss caused by reason of the application of the coinsurance clause contained  in
hazard  insurance policies. See  'The Pooling and  Servicing Agreement -- Hazard
Insurance'. No Special Hazard Insurance  Policy will cover losses occasioned  by
fraud  or conversion by the Trustee or Master Servicer, war, insurrection, civil
war, certain  governmental  action,  errors in  design,  faulty  workmanship  or
materials  (except under  certain circumstances), nuclear  or chemical reaction,
flood (if the  Mortgaged Property  is located  in a  federally designated  flood
area),  nuclear or chemical contamination and certain other risks. The amount of
coverage under any  Special Hazard  Insurance Policy  will be  specified in  the
related Prospectus Supplement. Each Special Hazard Insurance Policy will provide
that  no claim may be paid unless  hazard and, if applicable, flood insurance on
the property  securing the  Mortgage Loan  have  been kept  in force  and  other
protection and preservation expenses have been paid.
 
     Subject to the foregoing limitations, and unless otherwise specified in the
related Prospectus Supplement, each Special Hazard Insurance Policy will provide
that where there has been damage to property securing a foreclosed Mortgage Loan
(title  to which has been acquired by the insured) and to the extent such damage
is not covered by the hazard insurance policy or flood insurance policy, if any,
maintained by the Mortgagor or the  Master Servicer, the Special Hazard  Insurer
will pay the lesser of (i) the cost of repair or replacement of such property or
(ii)  upon transfer of  the property to  the Special Hazard  Insurer, the unpaid
principal balance  of such  Mortgage Loan  at the  time of  acquisition of  such
property by foreclosure or deed in lieu of foreclosure, plus accrued interest to
the  date  of  claim settlement  and  certain  expenses incurred  by  the Master
Servicer with respect  to such property.  If the unpaid  principal balance of  a
Mortgage  Loan plus accrued interest and certain expenses is paid by the Special
Hazard Insurer, the amount of further coverage under the related Special  Hazard
Insurance  Policy will be reduced by such  amount less any net proceeds from the
sale of the property.  Any amount paid  as the cost of  repair of such  property
will  further  reduce  coverage by  such  amount.  So long  as  a  Mortgage Pool
Insurance Policy remains in effect, the payment by the Special Hazard Insurer of
the cost of repair or  of the unpaid principal  balance of the related  Mortgage
Loan  plus  accrued interest  and  certain expenses  will  not affect  the total
insurance proceeds  paid to  Certificateholders, but  will affect  the  relative
amounts  of coverage remaining under the related Special Hazard Insurance Policy
and Mortgage Pool Insurance Policy.
 
     To the extent specified in  the Prospectus Supplement, the Master  Servicer
may  deposit  cash, an  irrevocable  letter of  credit  or any  other instrument
acceptable to each nationally recognized  rating agency rating the  Certificates
of  the related Series in a special  trust account to provide protection in lieu
of or in addition  to that provided  by a Special  Hazard Insurance Policy.  The
amount  of any Special Hazard Insurance Policy  or of the deposit to the special
trust account in lieu  thereof relating to such  Certificates may be reduced  so
long  as any such  reduction will not result  in a downgrading  of the rating of
such Certificates by any such rating agency.
 
BANKRUPTCY BONDS
 
     If specified in the related  Prospectus Supplement, a bankruptcy bond  (the
'Bankruptcy  Bond') to cover losses resulting from proceedings under the federal
Bankruptcy Code with respect  to a Mortgage  Loan will be  issued by an  insurer
named  in such  Prospectus Supplement. Each  Bankruptcy Bond will  cover, to the
extent specified in the related Prospectus Supplement, certain losses  resulting
from  a reduction by a  bankruptcy court of scheduled  payments of principal and
interest on a Mortgage Loan or a reduction by such court of the principal amount
of a Mortgage Loan and will cover certain unpaid interest on the amount of  such
a  principal reduction  from the  date of the  filing of  a bankruptcy petition.
 
                                       37
 
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The required amount of coverage under each Bankruptcy Bond will be set forth  in
the  related  Prospectus Supplement.  Coverage under  a  Bankruptcy Bond  may be
cancelled or reduced by  the Master Servicer if  such cancellation or  reduction
would  not adversely affect  the then current  rating or ratings  of the related
Certificates. See 'Certain Legal Aspects of the Mortgage
Loans -- Anti-Deficiency Legislation and Other Limitations on Lenders' herein.
 
     To the extent specified in  the Prospectus Supplement, the Master  Servicer
may  deposit  cash, an  irrevocable  letter of  credit  or any  other instrument
acceptable to each nationally recognized  rating agency rating the  Certificates
of  the related Series in a special  trust account to provide protection in lieu
of or in  addition to  that provided  by a Bankruptcy  Bond. The  amount of  any
Bankruptcy  Bond or of the deposit to  the special trust account in lieu thereof
relating to such Certificates may be reduced so long as any such reduction  will
not  result in  a downgrading  of the  rating of  such Certificates  by any such
rating agency.
 
RESERVE FUND
 
     If so specified in the  related Prospectus Supplement, credit support  with
respect  to a Series  of Certificates may  be provided by  the establishment and
maintenance with the Trustee for such  Series of Certificates, in trust, of  one
or  more  reserve  funds  (the  'Reserve Fund')  for  such  Series.  The related
Prospectus Supplement  will  specify whether  or  not  a Reserve  Fund  will  be
included in the Trust Fund for such Series.
 
     The  Reserve Fund for a Series will be funded (i) by the deposit therein of
cash, U.S. Treasury securities or instruments evidencing ownership of  principal
or  interest payments thereon, letters of  credit, demand notes, certificates of
deposit or  a combination  thereof  in the  aggregate  amount specified  in  the
related  Prospectus Supplement, (ii) by the deposit therein from time to time of
certain amounts, as specified in the related Prospectus Supplement, to which the
Subordinated Certificateholders, if any, would otherwise be entitled or (iii) in
such other manner as may be specified in the related Prospectus Supplement.
 
     Any amounts on deposit in  the Reserve Fund and  the proceeds of any  other
instrument  deposited therein  upon maturity  will be  held in  cash or  will be
invested in 'Permitted  Investments' which,  unless otherwise  specified in  the
related Prospectus Supplement, will include obligations of the United States and
certain  agencies thereof,  certificates of  deposit, certain  commercial paper,
time deposits  and bankers  acceptances sold  by eligible  commercial banks  and
certain  repurchase  agreements  of  United  States  government  securities with
eligible commercial banks. If a letter of credit is deposited with the  Trustee,
such  letter of  credit will be  irrevocable. Unless otherwise  specified in the
related Prospectus Supplement,  any instrument deposited  therein will name  the
Trustee,  in its capacity as trustee  for the Certificateholders, as beneficiary
and will be issued by an entity acceptable to each rating agency that rates  the
Certificates.  Additional information with respect to such instruments deposited
in the Reserve Funds will be set forth in the related Prospectus Supplement.
 
     Any amounts so deposited and payments  on instruments so deposited will  be
available  for  withdrawal  from  the  Reserve  Fund  for  distribution  to  the
Certificateholders for the purposes, in the manner and at the times specified in
the related Prospectus Supplement.
 
CROSS SUPPORT
 
     If specified in the related Prospectus Supplement, the beneficial ownership
of separate  groups of  assets included  in a  Trust Fund  may be  evidenced  by
separate  classes of  the related Series  of Certificates. In  such case, credit
support may  be  provided  by  a  cross  support  feature  which  requires  that
distributions  be  made with  respect  to Certificates  evidencing  a beneficial
ownership interest in other asset groups within the same Trust Fund. The related
Prospectus Supplement for a  Series that includes a  cross support feature  will
describe the manner and conditions for applying such cross support feature.
 
     If specified in the related Prospectus Supplement, the coverage provided by
one  or  more forms  of credit  support may  apply concurrently  to two  or more
related Trust  Funds.  If applicable,  the  related Prospectus  Supplement  will
identify  the Trust Funds to which such credit support relates and the manner of
determining the amount of the coverage  provided thereby and of the  application
of such coverage to the identified Trust Funds.
 
                                       38
 
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OTHER INSURANCE, SURETY BONDS, GUARANTIES, LETTERS OF CREDIT AND SIMILAR
INSTRUMENTS OR AGREEMENTS
 
     If  specified in the  related Prospectus Supplement, a  Trust Fund may also
include insurance,  guaranties,  surety  bonds, letters  of  credit  or  similar
arrangements  for the  purpose of (i)  maintaining timely  payments or providing
additional protection against losses on the assets included in such Trust  Fund,
(ii) paying administrative expenses or (iii) establishing a minimum reinvestment
rate on the payments made in respect of such assets or principal payment rate on
such   assets.   Such   arrangements   may   include   agreements   under  which
Certificateholders are entitled to receive amounts deposited in various accounts
held by the Trustee upon the terms specified in such Prospectus Supplement.
 
                      YIELD AND PREPAYMENT CONSIDERATIONS
 
     The yields to maturity and weighted average lives of the Certificates  will
be affected primarily by the amount and timing of principal payments received on
or  in respect of  the Mortgage Assets  included in the  related Trust Fund. The
original terms to maturity of the underlying mortgage loans with respect to  the
Mortgage  Assets in a given  Mortgage Pool will vary  depending upon the type of
mortgage loans included  therein, and  each Prospectus  Supplement will  contain
information  with respect  to the  type and  maturities of  such mortgage loans.
Unless otherwise specified  in the related  Prospectus Supplement, the  mortgage
loans  may  be prepaid  without penalty  in full  or  in part  at any  time. The
prepayment experience  on the  underlying  mortgage loans  with respect  to  the
Mortgage Assets will affect the life of the related Series of Certificates.
 
     A number of factors, including homeowner mobility, economic conditions, the
presence  and enforceability  of due-on-sale  clauses, mortgage  market interest
rates and  the  availability  of  mortgage  funds,  may  affect  the  prepayment
experience of mortgage loans.
 
     Unless  otherwise  provided  in  the  related  Prospectus  Supplement,  all
conventional Mortgage Loans will  contain due-on-sale provisions permitting  the
mortgagee  to accelerate the maturity of the loan upon sale or certain transfers
by the Mortgagor of the underlying Mortgaged Property. Mortgage Loans insured by
the FHA and Mortgage Loans partially guaranteed by the VA are assumable with the
consent of the FHA and  the VA, respectively. Thus,  the rate of prepayments  on
such  Mortgage  Loans may  be  lower than  that  on conventional  Mortgage Loans
bearing comparable  interest rates.  Unless otherwise  provided in  the  related
Prospectus   Supplement,  the   Master  Servicer  generally   will  enforce  any
due-on-sale or due-on-encumbrance clause, to the extent it has knowledge of  the
conveyance or further encumbrance or the proposed conveyance or proposed further
encumbrance  of  the  Mortgaged  Property and  reasonably  believes  that  it is
entitled to  do so  under applicable  law; provided,  however, that  the  Master
Servicer  will not take any enforcement action  that would impair or threaten to
impair any recovery  under any related  insurance policy. See  'The Pooling  and
Servicing Agreement  -- Collection Procedures' and 'Certain Legal Aspects of the
Mortgage Loans' herein for a description of certain provisions of each Agreement
and  certain legal developments that may affect the prepayment experience on the
Mortgage Loans.
 
     The rate of  prepayments with  respect to conventional  mortgage loans  has
fluctuated  significantly in recent years. In  general, if prevailing rates fall
significantly below the Mortgage Rates borne by the Mortgage Loans, the Mortgage
Loans are likely  to be subject  to higher prepayment  rates than if  prevailing
interest rates remain at or above such Mortgage Rates. Conversely, if prevailing
interest  rates rise appreciably above the  Mortgage Rates borne by the Mortgage
Loans, the Mortgage Loans are likely to experience a lower prepayment rate  than
if  prevailing rates remain at or below  such Mortgage Rates. However, there can
be no assurance that such will be the case.
 
     When a full prepayment is made on a Mortgage Loan, the Mortgagor is charged
interest on the principal amount  of the Mortgage Loan  so prepaid only for  the
number  of days in the  month actually elapsed up to  the date of the prepayment
rather than  for  a  full  month. Unless  otherwise  specified  in  the  related
Prospectus  Supplement, the effect of prepayments in  full will be to reduce the
amount of interest passed through  in the following month to  Certificateholders
because interest on the principal amount of any Mortgage Loan so prepaid will be
paid only to the date of prepayment. Partial prepayments in a given month may be
applied  to the outstanding principal balances  of the Mortgage Loans so prepaid
on the first day of the month of receipt or the month following receipt. In  the
latter  case, partial prepayments will not  reduce the amount of interest passed
through in such month. Unless
 
                                       39
 
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otherwise specified in the related Prospectus Supplement, both full and  partial
prepayments will not be passed through until the month following receipt.
 
     The  effective yield to Certificateholders will  be slightly lower than the
yield otherwise produced by the applicable Pass-Through Rate and purchase  price
because  while interest will accrue on each  Mortgage Loan from the first day of
the month (unless otherwise provided in the related Prospectus Supplement),  the
distribution  of such interest will not be made earlier than the month following
the month of accrual.
 
     Under certain  circumstances, the  Master Servicer  or the  holders of  the
residual  interests in a REMIC  may have the option to  purchase the assets of a
Trust Fund  thereby  effecting  earlier  retirement of  the  related  Series  of
Certificates.  See 'The Pooling and Servicing Agreement -- Termination; Optional
Termination' herein.
 
     Factors other than those  identified herein and  in the related  Prospectus
Supplement could significantly affect principal prepayments at any time and over
the  lives of the Certificates. The relative contribution of the various factors
affecting prepayment may also vary from time to time. There can be no  assurance
as  to the rate  of payment of principal  of the Mortgage Assets  at any time or
over the lives of the Certificates.
 
     The Prospectus Supplement relating to a Series of Certificates will discuss
in greater  detail the  effect of  the  rate and  timing of  principal  payments
(including  Principal  Prepayments),  delinquencies  and  losses  on  the yield,
weighted average lives and maturities of such Certificates.
 
                                       40

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                      THE POOLING AND SERVICING AGREEMENT
 
     Set  forth below is a summary of  certain provisions of the Agreement which
are not described elsewhere in  this Prospectus. Where particular provisions  or
terms  used in the  Agreement are referred  to, such provisions  or terms are as
specified in the related Agreement.
 
ASSIGNMENT OF MORTGAGE ASSETS
 
     Assignment of  the  Mortgage  Loans.    At the  time  of  issuance  of  the
Certificates of a Series, the Depositor will cause the Mortgage Loans comprising
the  related  Trust  Fund to  be  assigned  to the  Trustee,  together  with all
principal and interest  received by or  on behalf  of the Depositor  on or  with
respect  to such Mortgage Loans after the Cut-off Date, other than principal and
interest due on or before the Cut-off Date and other than any Retained  Interest
specified  in the related Prospectus  Supplement. The Trustee will, concurrently
with such assignment, deliver the Certificates to the Depositor in exchange  for
the  Mortgage  Loans.  Each  Mortgage  Loan will  be  identified  in  a schedule
appearing as an  exhibit to the  related Agreement. Such  schedule will  include
information  as to the outstanding principal balance of each Mortgage Loan after
application of  payments  due  on  the Cut-off  Date,  as  well  as  information
regarding  the Mortgage Rate, the current scheduled monthly payment of principal
and interest, the maturity of the  loan, the Loan-to-Value Ratio at  origination
and certain other information.
 
     In  addition, the Depositor  will deliver or  cause to be  delivered to the
Trustee (or to the custodian hereinafter referred to) as to each Mortgage  Loan,
among  other things, (i) the Mortgage Note endorsed without recourse in blank or
to the  order of  the  Trustee, (ii)  the mortgage,  deed  of trust  or  similar
instrument (the 'Mortgage') with evidence of recording indicated thereon (except
for  any Mortgage not returned  from the public recording  office, in which case
the Depositor  will,  unless  otherwise  specified  in  the  related  Prospectus
Supplement,  deliver or cause to  be delivered a copy  of such Mortgage together
with a certificate  that the  original of such  Mortgage was  delivered to  such
recording  office), (iii)  an assignment of  the Mortgage to  the Trustee, which
assignment will be in recordable form and (iv) such other security documents  as
may  be specified in the related Prospectus Supplement or the related Agreement.
Unless otherwise specified in the  related Prospectus Supplement, the  Depositor
will  promptly cause the assignments of the  related loans to be recorded in the
appropriate public office for real property records, except in states in  which,
in  the opinion  of counsel  acceptable to  the Trustee,  such recording  is not
required to protect the  Trustee's interest in such  loans against the claim  of
any  subsequent transferee or any  successor to or creditor  of the Depositor or
the originator of such loans.
 
     With respect  to  any  Mortgage  Loans  that  are  Cooperative  Loans,  the
Depositor  will  cause  to be  delivered  to  the Trustee  the  related original
cooperative note  endorsed without  recourse in  blank or  to the  order of  the
Trustee,  the original  security agreement,  the proprietary  lease or occupancy
agreement, the recognition  agreement, an executed  financing agreement and  the
relevant  stock certificate, related  blank stock powers  and any other document
specified in the related Prospectus Supplement.  The Depositor will cause to  be
filed  in  the  appropriate  office  an  assignment  and  a  financing statement
evidencing the Trustee's security interest in each Cooperative Loan.
 
     The Trustee (or  the custodian  hereinafter referred to)  will review  such
Mortgage  Loan  documents  within  the  time  period  specified  in  the related
Prospectus Supplement  after receipt  thereof, and  the Trustee  will hold  such
documents  in trust for the benefit  of the Certificateholders. Unless otherwise
specified in the related Prospectus Supplement, if any such document is found to
be missing or defective in any material respect, the Trustee (or such custodian)
will notify the Master Servicer and the Depositor, and the Master Servicer  will
notify  the related  Seller. If  the Seller cannot  cure the  omission or defect
within the  time period  specified in  the related  Prospectus Supplement  after
receipt  of such notice,  the Seller will  be obligated to  purchase the related
Mortgage Loan from the Trustee at the Purchase Price or, if so specified in  the
related  Prospectus Supplement, replace such Mortgage Loan with another mortgage
loan that  meets  certain  requirements  set forth  therein.  There  can  be  no
assurance  that a  Seller will  fulfill this  purchase obligation.  Although the
Master Servicer  may be  obligated  to enforce  such  obligation to  the  extent
described  above  under 'Mortgage  Loan Program  -- Representations  by Sellers;
Repurchases,' neither the Master Servicer nor the Depositor will be obligated to
purchase such Mortgage Loan if the  Seller defaults on its purchase  obligation,
unless  such  breach  also  constitutes  a  breach  of  the  representations  or
warranties of the Master Servicer or the  Depositor, as the case may be.  Unless
otherwise   specified  in  the  related  Prospectus  Supplement,  this  purchase
obligation constitutes the  sole remedy available  to the Certificateholders  or
the Trustee for omission of, or a material defect in, a constituent document.
 
                                       41
 
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     The  Trustee  will  be authorized  to  appoint  a custodian  pursuant  to a
custodial agreement to maintain possession of and, if applicable, to review  the
documents relating to the Mortgage Loans as agent of the Trustee.
 
     Notwithstanding  the foregoing provisions, with respect to a Trust Fund for
which a REMIC election is to  be made, unless the related Prospectus  Supplement
otherwise provides, no purchase of a Mortgage Loan will be made if such purchase
would result in a prohibited transaction tax under the Code.
 
     Assignment  of  Agency Securities.   The  Depositor  will cause  the Agency
Securities to be registered in the name  of the Trustee or its nominee, and  the
Trustee  concurrently will  execute, countersign  and deliver  the Certificates.
Each Agency Security will be identified in a schedule appearing as an exhibit to
the Agreement,  which will  specify  as to  each  Agency Security  the  original
principal  amount and outstanding principal balance  as of the Cut-off Date, the
annual pass-through rate (if any) and the maturity date.
 
     Assignment of Private Mortgage-Backed Securities.  The Depositor will cause
the Private  Mortgage-Backed Securities  to be  registered in  the name  of  the
Trustee. The Trustee (or the custodian) will have possession of any certificated
Private  Mortgage-Backed Securities.  Unless otherwise specified  in the related
Prospectus Supplement, the Trustee will not  be in possession of or be  assignee
of  record of any underlying assets  for a Private Mortgage-Backed Security. See
'The Trust  Fund --  Private Mortgage-Backed  Securities' herein.  Each  Private
Mortgage-Backed  Security  will  be identified  in  a schedule  appearing  as an
exhibit to  the related  Agreement  which will  specify the  original  principal
amount,   outstanding  principal  balance   as  of  the   Cut-off  Date,  annual
pass-through rate or interest rate and maturity date and certain other pertinent
information for each Private Mortgage-Backed Security conveyed to the Trustee.
 
PAYMENTS ON MORTGAGE ASSETS; DEPOSITS TO CERTIFICATE ACCOUNT
 
   
     The Master Servicer will establish and maintain or cause to be  established
and  maintained with  respect to  the related Trust  Fund a  separate account or
accounts for the collection  of payments on the  related Mortgage Assets in  the
Trust  Fund (the 'Certificate Account'), which unless otherwise specified in the
related Prospectus Supplement, must be  either (i) maintained with a  depository
institution  the short-term unsecured debt obligations  of which (or in the case
of a  depository institution  that  is the  principal  subsidiary of  a  holding
company,  the short-term  debt obligations  of which)  are rated  in the highest
short-term rating  category  by  the nationally  recognized  statistical  rating
organization(s)  that  rated  one  or  more classes  of  the  related  Series of
Certificates (each, a 'Rating Agency'), (ii) an account or accounts the deposits
in which are insured by the FDIC or  SAIF to the limits established by the  FDIC
or  the SAIF,  and the  uninsured deposits in  which are  otherwise secured such
that, as evidenced by an opinion of counsel, the Certificateholders have a claim
with respect  to the  funds in  the  Certificate Account  or a  perfected  first
priority  security interest against  any collateral securing  such funds that is
superior to  the claims  of any  other depositors  or general  creditors of  the
depository institution with which the Certificate Account is maintained, (iii) a
trust account or accounts maintained with the trust department of a federal or a
state  chartered depository institution or trust  company, acting in a fiduciary
capacity or (iv)  an account  or accounts  otherwise acceptable  to each  Rating
Agency.  The collateral eligible to secure amounts in the Certificate Account is
limited to Permitted Investments. A Certificate Account may be maintained as  an
interest  bearing account or the funds held therein may be invested pending each
succeeding  Distribution  Date  in   Permitted  Investments.  Unless   otherwise
specified  in  the related  Prospectus Supplement,  the  Master Servicer  or its
designee will be entitled to receive any such interest or other income earned on
funds in  the  Certificate  Account  as  additional  compensation  and  will  be
obligated  to  deposit  in  the  Certificate  Account  the  amount  of  any loss
immediately as  realized. The  Certificate Account  may be  maintained with  the
Master  Servicer or with  a depository institution  that is an  affiliate of the
Master Servicer, provided it meets the standards set forth above.
    
 
     The  Master  Servicer  will  deposit  or  cause  to  be  deposited  in  the
Certificate  Account  for  each Trust  Fund  on  a daily  basis,  to  the extent
applicable and unless otherwise specified  in the related Prospectus  Supplement
and  provided in the Agreement, the  following payments and collections received
or Advances made by  or on behalf  of it subsequent to  the Cut-off Date  (other
than  payments due on  or before the  Cut-off Date and  exclusive of any amounts
representing Retained Interest):
 
          (i)  all  payments  on  account  of  principal,  including   Principal
     Prepayments  and,  if  specified  in  the  related  Prospectus  Supplement,
     prepayment penalties, on the Mortgage Loans;
 
                                       42
 
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          (ii) all payments on account of interest on the Mortgage Loans, net of
     applicable servicing compensation;
 
          (iii) all proceeds  (net of unreimbursed  payments of property  taxes,
     insurance  premiums and  similar items  ('Insured Expenses')  incurred, and
     unreimbursed Advances made, by the Master  Servicer, if any) of the  hazard
     insurance  policies  and any  Primary Mortgage  Insurance Policies,  to the
     extent such proceeds are not applied to the restoration of the property  or
     released  to the Mortgagor in accordance  with the Master Servicer's normal
     servicing procedures  (collectively, 'Insurance  Proceeds') and  all  other
     cash  amounts  (net of  unreimbursed expenses  incurred in  connection with
     liquidation  or  foreclosure  ('Liquidation  Expenses')  and   unreimbursed
     Advances,  if any) received and retained in connection with the liquidation
     of defaulted  Mortgage Loans,  by  foreclosure or  otherwise  ('Liquidation
     Proceeds'), together with any net proceeds received on a monthly basis with
     respect  to any properties acquired on  behalf of the Certificateholders by
     foreclosure or deed in lieu of foreclosure;
 
          (iv) all proceeds of any Mortgage Loan or property in respect  thereof
     purchased  by the Master Servicer, the Depositor or any Seller as described
     under 'Mortgage Loan Program -- Representations by Sellers; Repurchases' or
     'The Pooling  and Servicing  Agreement --  Assignment of  Mortgage  Assets'
     above  and all proceeds of any Mortgage Loan repurchased as described under
     'The Pooling and Servicing Agreement -- Termination; Optional  Termination'
     below;
 
          (v)  all payments required to be  deposited in the Certificate Account
     with respect  to any  deductible  clause in  any blanket  insurance  policy
     described under ' -- Hazard Insurance' below;
 
          (vi)  any amount  required to be  deposited by the  Master Servicer in
     connection with  losses realized  on  investments for  the benefit  of  the
     Master Servicer of funds held in the Certificate Account and, to the extent
     specified in the related Prospectus Supplement, any payments required to be
     made  by  the  Master  Servicer  in  connection  with  prepayment  interest
     shortfalls; and
 
          (vii) all other amounts  required to be  deposited in the  Certificate
     Account pursuant to the Agreement.
 
     The Master Servicer (or the Depositor, as applicable) may from time to time
direct  the institution that maintains the Certificate Account to withdraw funds
from the Certificate Account for the following purposes:
 
          (i) to pay to the Master Servicer the servicing fees described in  the
     related  Prospectus  Supplement,  the  master  servicing  fees  (subject to
     reduction) and,  as  additional  servicing  compensation,  earnings  on  or
     investment  income with respect to funds  in the amounts in the Certificate
     Account credited thereto;
 
          (ii) to  reimburse the  Master Servicer  for Advances,  such right  of
     reimbursement  with respect to  any Mortgage Loan  being limited to amounts
     received that represent  late recoveries  of payments  of principal  and/or
     interest  on  such  Mortgage  Loan (or  Insurance  Proceeds  or Liquidation
     Proceeds with respect thereto) with respect to which such Advance was made;
 
          (iii) to reimburse  the Master  Servicer for  any Advances  previously
     made which the Master Servicer has determined to be nonrecoverable;
 
          (iv)  to  reimburse the  Master Servicer  from Insurance  Proceeds for
     expenses incurred  by  the  Master  Servicer and  covered  by  the  related
     insurance policies;
 
          (v)  to reimburse the Master Servicer for unpaid master servicing fees
     and unreimbursed out-of-pocket  costs and expenses  incurred by the  Master
     Servicer  in the  performance of its  servicing obligations,  such right of
     reimbursement  being  limited   to  amounts   received  representing   late
     recoveries of the payments for which such advances were made;
 
          (vi) to pay to the Master Servicer, with respect to each Mortgage Loan
     or  property acquired  in respect  thereof that  has been  purchased by the
     Master Servicer pursuant to the Agreement, all amounts received thereon and
     not taken  into  account  in  determining the  principal  balance  of  such
     repurchased Mortgage Loan;
 
          (vii)  to reimburse the Master Servicer  or the Depositor for expenses
     incurred and reimbursable pursuant to the Agreement;
 
          (viii) to withdraw any amount deposited in the Certificate Account and
     not required to be deposited therein; and
 
          (ix) to clear and terminate  the Certificate Account upon  termination
     of the Agreement.
 
                                       43
 
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     In   addition,  unless  otherwise  specified   in  the  related  Prospectus
Supplement,  on  or  prior  to  the  business  day  immediately  preceding  each
Distribution  Date,  the Master  Servicer  shall withdraw  from  the Certificate
Account the amount of Available Funds, to the extent on deposit, for deposit  in
an account maintained by the Trustee for the related Series of Certificates.
 
COLLECTION PROCEDURES
 
     The  Master Servicer, directly  or through one  or more Sub-Servicers, will
make reasonable efforts to  collect all payments called  for under the  Mortgage
Loans  and will, consistent with each  Agreement and any Mortgage Pool Insurance
Policy, Primary  Mortgage  Insurance  Policy, FHA  Insurance,  VA  Guaranty  and
Bankruptcy  Bond or alternative arrangements,  follow such collection procedures
as are  customary with  respect to  mortgage loans  that are  comparable to  the
Mortgage  Loans.  Consistent with  the above,  the Master  Servicer may,  in its
discretion, (i)  waive any  assumption  fee, late  payment  or other  charge  in
connection with a Mortgage Loan and (ii) to the extent not inconsistent with the
coverage  of such  Mortgage Loan  by a  Mortgage Pool  Insurance Policy, Primary
Mortgage Insurance  Policy, FHA  Insurance, VA  Guaranty or  Bankruptcy Bond  or
alternative arrangements, if applicable, arrange with a Mortgagor a schedule for
the  liquidation of delinquencies  running for no  more than 125  days after the
applicable due  date for  each payment.  To the  extent the  Master Servicer  is
obligated  to make or to cause to  be made Advances, such obligation will remain
during any period of such an arrangement.
 
     Unless otherwise specified  in the  related Prospectus  Supplement, in  any
case  in which property  securing a conventional  Mortgage Loan has  been, or is
about to be, conveyed by the Mortgagor, the Master Servicer will, to the  extent
it has knowledge of such conveyance or proposed conveyance, exercise or cause to
be  exercised its rights to accelerate the  maturity of such Mortgage Loan under
any due-on-sale clause  applicable thereto,  but only  if the  exercise of  such
rights  is permitted by applicable law and will not impair or threaten to impair
any recovery  under any  related  Primary Mortgage  Insurance Policy.  If  these
conditions  are not  met or  if the  Master Servicer  reasonably believes  it is
unable under  applicable law  to  enforce such  due-on-sale  clause or  if  such
Mortgage  Loan is  insured by  the FHA  or partially  guaranteed by  the VA, the
Master Servicer will enter into  or cause to be  entered into an assumption  and
modification  agreement with  the person  to whom such  property has  been or is
about to be conveyed, pursuant to which such person becomes liable for repayment
of the  Mortgage  Loan and,  to  the extent  permitted  by applicable  law,  the
Mortgagor  also remains liable thereon. Any fee collected by or on behalf of the
Master Servicer for entering into an assumption agreement will be retained by or
on behalf  of the  Master  Servicer as  additional servicing  compensation.  See
'Certain  Legal Aspects of the Mortgage Loans -- Due-on-Sale Clauses' herein. In
connection with any such assumption, the terms of the related Mortgage Loan  may
not be changed.
 
     With respect to Cooperative Loans, any prospective purchaser will generally
have  to  obtain  the  approval  of  the  board  of  directors  of  the relevant
Cooperative before purchasing the shares and acquiring rights under the  related
proprietary  lease or  occupancy agreement.  See 'Certain  Legal Aspects  of the
Mortgage Loans' herein. This approval is usually based on the purchaser's income
and net worth and numerous other factors. Although the Cooperative's approval is
unlikely to be unreasonably withheld or delayed, the necessity of acquiring such
approval could limit  the number of  potential purchasers for  those shares  and
otherwise  limit the Trust Fund's ability to sell and realize the value of those
shares.
 
     In general, a 'tenant-stockholder' (as  defined in Code Section  216(b)(2))
of  a corporation that  qualifies as a  'cooperative housing corporation' within
the meaning of Code Section 216(b)(1) is allowed a deduction for amounts paid or
accrued  within  his   taxable  year   to  the   corporation  representing   his
proportionate  share of certain interest expenses  and certain real estate taxes
allowable as a deduction under Code Section 216(a) to the corporation under Code
Sections 163 and 164. In order for  a corporation to qualify under Code  Section
216(b)(1)  for its taxable year in which such items are allowable as a deduction
to the corporation, such Section requires, among other things, that at least 80%
of the gross income of the  corporation be derived from its  tenant-stockholders
(as  defined  in Code  Section 216(b)(2)).  By virtue  of this  requirement, the
status of  a  corporation  for  purposes  of  Code  Section  216(b)(1)  must  be
determined on a year-to-year basis. Consequently, there can be no assurance that
Cooperatives  relating to the Cooperative Loans  will qualify under such Section
for any particular year. In the event  that such a Cooperative fails to  qualify
for  one  or  more years,  the  value  of the  collateral  securing  any related
Cooperative Loans could be significantly impaired because no deduction would  be
allowable to tenant-stockholders under Code Section 216(a) with respect to those
years.   In   view   of  the   significance   of  the   tax   benefits  accorded
tenant-stockholders of a corporation that qualifies
 
                                       44
 
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under Code  Section 216(b)(1),  the  likelihood that  such  a failure  would  be
permitted to continue over a period of years appears remote.
 
HAZARD INSURANCE
 
     The  Master Servicer  will require the  Mortgagor on each  Mortgage Loan to
maintain a hazard insurance  policy providing for no  less than the coverage  of
the  standard form of fire insurance policy with extended coverage customary for
the type of Mortgaged Property in the state in which such Mortgaged Property  is
located. Such coverage will be in an amount that is at least equal to the lesser
of  (i) the maximum  insurable value of the  improvements securing such Mortgage
Loan or  (ii)  the greater  of  (y) the  outstanding  principal balance  of  the
Mortgage  Loan and (z) an amount such that  the proceeds of such policy shall be
sufficient to prevent  the mortgagor and/or  the mortgagee from  becoming a  co-
insurer.  All amounts collected  by the Master Servicer  under any hazard policy
(except for amounts to be applied to the restoration or repair of the  Mortgaged
Property  or released to the Mortgagor  in accordance with the Master Servicer's
normal servicing  procedures)  will  be deposited  in  the  related  Certificate
Account.  In  the event  that  the Master  Servicer  maintains a  blanket policy
insuring against hazard losses  on all the Mortgage  Loans comprising part of  a
Trust  Fund, it  will conclusively  be deemed  to have  satisfied its obligation
relating to the maintenance of hazard insurance. Such blanket policy may contain
a deductible  clause, in  which case  the Master  Servicer will  be required  to
deposit from its own funds into the related Certificate Account the amounts that
would have been deposited therein but for such clause.
 
     In  general, the standard form of  fire and extended coverage policy covers
physical damage to or destruction of  the improvements securing a Mortgage  Loan
by fire, lightning, explosion, smoke, windstorm and hail, riot, strike and civil
commotion,  subject  to the  conditions  and exclusions  particularized  in each
policy. Although  the policies  relating to  the Mortgage  Loans may  have  been
underwritten by different insurers under different state laws in accordance with
different  applicable forms  and therefore may  not contain  identical terms and
conditions, the basic terms thereof are  dictated by the respective state  laws,
and most such policies typically do not cover any physical damage resulting from
the   following:  war,  revolution,  governmental   actions,  floods  and  other
water-related causes, earth movement (including earthquakes, landslides and  mud
flows),  nuclear reactions, wet or dry rot, vermin, rodents, insects or domestic
animals, theft and, in  certain cases, vandalism. The  foregoing list is  merely
indicative  of certain kinds  of uninsured risks  and is not  intended to be all
inclusive. If the Mortgaged  Property securing a Mortgage  Loan is located in  a
federally  designated special flood area at  the time of origination, the Master
Servicer will require the Mortgagor to obtain and maintain flood insurance.
 
     The hazard  insurance policies  covering properties  securing the  Mortgage
Loans  typically contain a  clause which in  effect requires the  insured at all
times to carry insurance of a specified percentage (generally 80% to 90%) of the
full replacement value  of the  insured property in  order to  recover the  full
amount of any partial loss. If the insured's coverage falls below this specified
percentage,  then the insurer's liability in the  event of partial loss will not
exceed the larger of (i) the actual cash value (generally defined as replacement
cost at  the  time  and  place  of loss,  less  physical  depreciation)  of  the
improvements  damaged or destroyed  or (ii) such  proportion of the  loss as the
amount of  insurance carried  bears  to the  specified  percentage of  the  full
replacement  cost of such improvements. Since the amount of hazard insurance the
Master Servicer may  cause to  be maintained  on the  improvements securing  the
Mortgage  Loans declines as  the principal balances  owing thereon decrease, and
since improved real estate generally has  appreciated in value over time in  the
past,  the effect of this  requirement in the event of  partial loss may be that
hazard insurance  proceeds will  be insufficient  to restore  fully the  damaged
property.  If specified in  the related Prospectus  Supplement, a special hazard
insurance policy will  be obtained to  insure against certain  of the  uninsured
risks  described  above. See  'Credit  Enhancement --  Special  Hazard Insurance
Policies' herein  and  'Credit  Enhancements  --  Insurance  --  Special  Hazard
Insurance Policy' in the related Prospectus Supplement.
 
     The  Master  Servicer will  not  require that  a  standard hazard  or flood
insurance policy  be maintained  on  the cooperative  dwelling relating  to  any
Cooperative   Loan.  Generally,  the  Cooperative   itself  is  responsible  for
maintenance of hazard insurance  for the property owned  by the Cooperative  and
the  tenant-stockholders of that  Cooperative do not  maintain individual hazard
insurance policies. To the extent, however,  that a Cooperative and the  related
borrower on a Cooperative Loan do not maintain such insurance or do not maintain
adequate  coverage or any insurance proceeds  are not applied to the restoration
of damaged property, any damage to such borrower's cooperative dwelling or  such
 
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Cooperative's  building could significantly  reduce the value  of the collateral
securing such  Cooperative  Loan to  the  extent  not covered  by  other  credit
support.
 
REALIZATION UPON DEFAULTED MORTGAGE LOANS
 
     Primary  Mortgage Insurance Policies.  The Master Servicer will maintain or
cause to be maintained,  as the case may  be, in full force  and effect, to  the
extent  specified  in  the  related Prospectus  Supplement,  a  Primary Mortgage
Insurance Policy with regard  to each Mortgage Loan  for which such coverage  is
required.  The  Master Servicer  will not  cancel  or refuse  to renew  any such
Primary Mortgage Insurance Policy in effect at the time of the initial  issuance
of  a Series  of Certificates  that is required  to be  kept in  force under the
applicable Agreement unless  the replacement Primary  Mortgage Insurance  Policy
for  such cancelled  or nonrenewed  policy is  maintained with  an insurer whose
claims-paying ability  is  sufficient to  maintain  the current  rating  of  the
classes of Certificates of such Series that have been rated.
 
     Although  the terms and conditions of  primary mortgage insurance vary, the
amount of  a  claim for  benefits  under  a Primary  Mortgage  Insurance  Policy
covering  a Mortgage Loan will  consist of the insured  percentage of the unpaid
principal amount of the  covered Mortgage Loan and  accrued and unpaid  interest
thereon  and  reimbursement of  certain expenses,  less (i)  all rents  or other
payments collected or received by the insured (other than the proceeds of hazard
insurance) that  are  derived  from or  in  any  way related  to  the  Mortgaged
Property,  (ii) hazard  insurance proceeds in  excess of the  amount required to
restore the Mortgaged Property and which have not been applied to the payment of
the Mortgage Loan, (iii) amounts expended but not approved by the issuer of  the
related  Primary Mortgage Insurance  Policy (the 'Primary  Insurer'), (iv) claim
payments previously made by the Primary Insurer and (v) unpaid premiums.
 
     Primary Mortgage Insurance Policies  reimburse certain losses sustained  by
reason of defaults in payments by borrowers. Primary Mortgage Insurance Policies
will  not insure against, and exclude from  coverage, a loss sustained by reason
of a default arising from or  involving certain matters, including (i) fraud  or
negligence  in  origination  or  servicing  of  the  Mortgage  Loans,  including
misrepresentation by the originator, Mortgagor or other persons involved in  the
origination  of  the  Mortgage Loan;  (ii)  failure to  construct  the Mortgaged
Property subject to the Mortgage Loan in accordance with specified plans;  (iii)
physical damage to the Mortgaged Property; and (iv) the related Sub-Servicer not
being approved as a servicer by the Primary Insurer.
 
     Recoveries  Under  a  Primary  Mortgage Insurance  Policy.    As conditions
precedent to  the filing  of or  payment of  a claim  under a  Primary  Mortgage
Insurance  Policy covering a Mortgage Loan, the  insured will be required to (i)
advance or  discharge  (a) all  hazard  insurance  policy premiums  and  (b)  as
necessary  and  approved in  advance  by the  Primary  Insurer, (1)  real estate
property taxes,  (2) all  expenses required  to maintain  the related  Mortgaged
Property  in at least  as good a condition  as existed at  the effective date of
such Primary Mortgage  Insurance Policy,  ordinary wear and  tear excepted,  (3)
Mortgaged Property sales expenses, (4) any outstanding liens (as defined in such
Primary Mortgage Insurance Policy) on the Mortgaged Property and (5) foreclosure
costs,  including court costs and reasonable  attorneys' fees; (ii) in the event
of any physical  loss or damage  to the Mortgaged  Property, have the  Mortgaged
Property restored and repaired to at least as good a condition as existed at the
effective date of such Primary Mortgage Insurance Policy, ordinary wear and tear
excepted; and (iii) tender to the Primary Insurer good and merchantable title to
and possession of the Mortgaged Property.
 
     The   Master  Servicer,   on  behalf  of   itself,  the   Trustee  and  the
Certificateholders, will  present  claims  to the  insurer  under  each  Primary
Mortgage  Insurance Policy, and will take such reasonable steps as are necessary
to receive payment or  to permit recovery thereunder  with respect to  defaulted
Mortgage  Loans. As  set forth  above, all  collections by  or on  behalf of the
Master Servicer  under  any Primary  Mortgage  Insurance Policy  and,  when  the
Mortgaged Property has not been restored, the hazard insurance policy, are to be
deposited  in  the  Certificate  Account, subject  to  withdrawal  as heretofore
described.
 
     If the Mortgaged Property securing a defaulted Mortgage Loan is damaged and
proceeds, if any, from the related  hazard insurance policy are insufficient  to
restore  the  damaged Mortgaged  Property to  a  condition sufficient  to permit
recovery under the related Primary Mortgage Insurance Policy, if any, the Master
Servicer is  not  required  to expend  its  own  funds to  restore  the  damaged
Mortgaged  Property unless it determines (i) that such restoration will increase
the proceeds to  Certificateholders on  liquidation of the  Mortgage Loan  after
reimbursement  of  the  Master Servicer  for  its  expenses and  (ii)  that such
expenses  will  be  recoverable  by  it  from  related  Insurance  Proceeds   or
Liquidation Proceeds.
 
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     If recovery on a defaulted Mortgage Loan under any related Primary Mortgage
Insurance  Policy is not  available for the  reasons set forth  in the preceding
paragraph, or  if  the defaulted  Mortgage  Loan is  not  covered by  a  Primary
Mortgage  Insurance Policy, the  Master Servicer will be  obligated to follow or
cause to be followed such normal practices and procedures as it deems  necessary
or advisable to realize upon the defaulted Mortgage Loan. If the proceeds of any
liquidation  of the Mortgaged Property securing  the defaulted Mortgage Loan are
less than the  principal balance  of such  Mortgage Loan  plus interest  accrued
thereon  that is  payable to Certificateholders,  the Trust Fund  will realize a
loss in the amount of such difference plus the aggregate of expenses incurred by
the Master Servicer in  connection with such  proceedings that are  reimbursable
under the Agreement. In the unlikely event that any such proceedings result in a
total  recovery  which is,  after reimbursement  to the  Master Servicer  of its
expenses, in excess of the principal balance of such Mortgage Loan plus interest
accrued thereon that is payable to Certificateholders, the Master Servicer  will
be  entitled  to  withdraw  or  retain  from  the  Certificate  Account  amounts
representing its normal  servicing compensation  with respect  to such  Mortgage
Loan  and,  unless otherwise  specified  in the  related  Prospectus Supplement,
amounts representing  the  balance  of  such excess,  exclusive  of  any  amount
required  by  law  to  be  forwarded to  the  related  Mortgagor,  as additional
servicing compensation.
 
     If the Master Servicer or  its designee recovers Insurance Proceeds  which,
when  added to any  related Liquidation Proceeds and  after deduction of certain
expenses reimbursable to the Master Servicer, exceed the principal balance of  a
Mortgage   Loan   plus   interest   accrued   thereon   that   is   payable   to
Certificateholders, the Master Servicer will  be entitled to withdraw or  retain
from   the  Certificate  Account  amounts   representing  its  normal  servicing
compensation with respect to  such Mortgage Loan. In  the event that the  Master
Servicer  has expended its  own funds to restore  the damaged Mortgaged Property
and such  funds have  not been  reimbursed under  the related  hazard  insurance
policy,  it will  be entitled  to withdraw from  the Certificate  Account out of
related Liquidation  Proceeds or  Insurance  Proceeds an  amount equal  to  such
expenses  incurred by it, in which event the Trust Fund may realize a loss up to
the amount so charged. Since Insurance Proceeds cannot exceed deficiency  claims
and  certain  expenses  incurred by  the  Master  Servicer, no  such  payment or
recovery will result in a recovery to the Trust Fund that exceeds the  principal
balance  of the defaulted Mortgage Loan  together with accrued interest thereon.
See 'Credit Enhancement' herein and in the related Prospectus Supplement.
 
     Unless otherwise  specified in  the related  Prospectus Supplement  or  the
related  Agreement, the proceeds from any liquidation of a Mortgage Loan will be
applied in  the following  order of  priority: first,  to reimburse  the  Master
Servicer  for any  unreimbursed expenses incurred  by it to  restore the related
Mortgaged Property and  any unreimbursed servicing  compensation payable to  the
Master  Servicer with  respect to such  Mortgage Loan; second,  to reimburse the
Master Servicer  for any  unreimbursed Advances  with respect  to such  Mortgage
Loan;  third, to accrued and unpaid interest  (to the extent no Advance has been
made for  such amount)  on such  Mortgage Loan;  and fourth,  as a  recovery  of
principal of such Mortgage Loan.
 
     FHA  Insurance; VA  Guaranties.  Mortgage  Loans designated  in the related
Prospectus Supplement  as insured  by the  FHA will  be insured  by the  FHA  as
authorized  under  the  United States  Housing  Act  of 1937,  as  amended. Such
Mortgage Loans will be insured under various FHA programs including the standard
FHA 203(b)  program to  finance the  acquisition of  one-to four-family  housing
units  and  the  FHA  245 graduated  payment  mortgage  program.  These programs
generally limit the principal  amount and interest rates  of the mortgage  loans
insured.  Mortgage Loans  insured by  the FHA  generally require  a minimum down
payment of approximately  5% of the  original principal amount  of the loan.  No
FHA-insured  Mortgage Loans relating  to a Series  may have an  interest rate or
original principal amount  exceeding the applicable  FHA limits at  the time  of
origination of such loan.
 
     The  insurance premiums for Mortgage Loans insured by the FHA are collected
by lenders approved by the Department  of Housing and Urban Development  ('HUD')
or  by the  Master Servicer or  any Sub-Servicers and  are paid to  the FHA. The
regulations governing FHA single-family mortgage insurance programs provide that
insurance benefits are payable either upon foreclosure (or other acquisition  of
possession)  and conveyance of the mortgaged  premises to HUD or upon assignment
of the defaulted Mortgage Loan to  HUD. With respect to a defaulted  FHA-insured
Mortgage Loan, the Master Servicer or any Sub-Servicer is limited in its ability
to initiate foreclosure proceedings. When it is determined, either by the Master
Servicer  or any Sub-Servicer  or HUD, that default  was caused by circumstances
beyond the  Mortgagor's control,  the  Master Servicer  or any  Sub-Servicer  is
expected  to make an effort to avoid  foreclosure by entering, if feasible, into
one of a number of available forms of forbearance plans with the Mortgagor. Such
plans may involve the reduction or suspension of regular
 
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mortgage payments for a specified period, with such payments to be made up on or
before the maturity date of the mortgage, or the recasting of payments due under
the mortgage up  to or beyond  the maturity  date. In addition,  when a  default
caused  by such circumstances is accompanied  by certain other criteria, HUD may
provide relief by making payments to the Master Servicer or any Sub-Servicer  in
partial  or  full satisfaction  of amounts  due under  the Mortgage  Loan (which
payments are to be repaid by the Mortgagor to HUD) or by accepting assignment of
the loan from the Master Servicer or any Sub-Servicer. With certain  exceptions,
at  least  three full  monthly installments  must  be due  and unpaid  under the
Mortgage Loan  and  HUD must  have  rejected any  request  for relief  from  the
Mortgagor   before  the  Master  Servicer   or  any  Sub-Servicer  may  initiate
foreclosure proceedings.
 
     HUD has the option, in  most cases, to pay insurance  claims in cash or  in
debentures  issued by HUD. Currently, claims are  being paid in cash, and claims
have  not  been  paid  in  debentures  since  1965.  HUD  debentures  issued  in
satisfaction  of  FHA  insurance  claims bear  interest  at  the  applicable HUD
debentures interest  rate.  The Master  Servicer  of any  Sub-Servicer  of  each
FHA-insured  Mortgage  Loan will  be obligated  to  purchase any  such debenture
issued in satisfaction of such Mortgage Loan upon default for an amount equal to
the principal amount of any such debenture.
 
     The amount of insurance benefits generally paid by the FHA is equal to  the
entire  unpaid  principal  amount of  the  defaulted Mortgage  Loan  adjusted to
reimburse the Master Servicer or Sub-Servicer for certain costs and expenses and
to deduct  certain  amounts received  or  retained  by the  Master  Servicer  or
Sub-Servicer  after default. When entitlement to insurance benefits results from
foreclosure (or  other acquisition  of possession)  and conveyance  to HUD,  the
Master  Servicer or Sub-Servicer  is compensated for no  more than two-thirds of
its foreclosure costs, and is compensated for interest accrued and unpaid  prior
to  such date but  in general only  to the extent  it was allowed  pursuant to a
forbearance plan approved by HUD. When entitlement to insurance benefits results
from assignment of the Mortgage Loan to HUD, the insurance payment includes full
compensation for  interest  accrued  and  unpaid to  the  assignment  date.  The
insurance  payment  itself, upon  foreclosure of  an FHA-insured  Mortgage Loan,
bears interest  from a  date 30  days after  the Mortgagor's  first  uncorrected
failure  to perform any  obligation to make  any payment due  under the Mortgage
Loan and, upon assignment, from the date of assignment to the date of payment of
the claim,  in  each case  at  the same  interest  rate as  the  applicable  HUD
debenture interest rate as described above.
 
     Mortgage   Loans  designated  in  the   related  Prospectus  Supplement  as
guaranteed by  the  VA  will  be  partially  guaranteed  by  the  VA  under  the
Serviceman's  Readjustment  Act  of  1944, as  amended  (a  'VA  Guaranty'). The
Serviceman's Readjustment Act  of 1944,  as amended,  permits a  veteran (or  in
certain instances the spouse of a veteran) to obtain a mortgage loan guaranty by
the  VA covering  mortgage financing  of the purchase  of a  one- to four-family
dwelling unit at interest rates permitted by the VA. The program has no mortgage
loan limits,  requires  no down  payment  from  the purchaser  and  permits  the
guarantee  of mortgage loans of  up to 30 years'  duration. However, no Mortgage
Loan guaranteed by the  VA will have an  original principal amount greater  than
five times the partial VA guaranty for such Mortgage Loan.
 
     The  maximum guaranty that  may be issued  by the VA  under a VA guaranteed
mortgage loan depends upon the original  principal amount of the mortgage  loan,
as further described in 38 United States Code Section 1803(a), as amended. As of
January  1, 1990, the maximum guaranty  that may be issued by  the VA under a VA
guaranteed mortgage loan  of more  than $144,000  is the  lesser of  25% of  the
original principal amount of the mortgage loan and $46,000. The liability on the
guaranty  is reduced or increased pro rata with any reduction or increase in the
amount of indebtedness, but in no event will the amount payable on the  guaranty
exceed  the  amount of  the original  guaranty. The  VA may,  at its  option and
without regard  to the  guaranty, make  full  payment to  a mortgage  holder  of
unsatisfied indebtedness on a mortgage upon its assignment to the VA.
 
     With  respect  to  a  defaulted VA  guaranteed  Mortgage  Loan,  the Master
Servicer or  Sub-Servicer is,  absent exceptional  circumstances, authorized  to
announce  its intention  to foreclose  only when  the default  has continued for
three months. Generally, a claim for the guaranty is submitted after liquidation
of the Mortgaged Property.
 
     The amount  payable  under the  guaranty  will  be the  percentage  of  the
VA-insured   Mortgage  Loan   originally  guaranteed   applied  to  indebtedness
outstanding as  of  the applicable  date  of  computation specified  in  the  VA
regulations.  Payments under the guaranty will  be equal to the unpaid principal
amount of the loan, interest  accrued on the unpaid balance  of the loan to  the
appropriate  date of computation  and limited expenses of  the mortgagee, but in
each case only to the extent that such
 
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amounts have not been recovered  through liquidation of the Mortgaged  Property.
The  amount payable under the guaranty may in  no event exceed the amount of the
original guaranty.
 
SERVICING AND OTHER COMPENSATION AND PAYMENT OF EXPENSES
 
     The principal servicing compensation to be  paid to the Master Servicer  in
respect  of its master servicing activities for each Series of Certificates will
be equal  to  the percentage  per  annum  described in  the  related  Prospectus
Supplement  (which  may vary  under  certain circumstances)  of  the outstanding
principal balance of each Mortgage Loan, and such compensation will be  retained
by  it from collections of  interest on such Mortgage  Loan in the related Trust
Fund (the 'Master  Servicing Fee').  Unless otherwise specified  in the  related
Prospectus  Supplement, as compensation for its servicing duties, a Sub-Servicer
or, if there  is no  Sub-Servicer, the  Master Servicer  will be  entitled to  a
monthly  servicing fee  as described  in the  related Prospectus  Supplement. In
addition, the  Master Servicer  or  a Sub-Servicer  will retain  all  prepayment
charges,  assumption fees and late payment charges, to the extent collected from
Mortgagors, and any benefit  that may accrue  as a result  of the investment  of
funds  in the applicable Certificate Account  (unless otherwise specified in the
related Prospectus Supplement).
 
     The Master Servicer will pay or  cause to be paid certain ongoing  expenses
associated  with  each Trust  Fund and  incurred  by it  in connection  with its
responsibilities under  the related  Agreement, including,  without  limitation,
payment  of any fee or other amount payable in respect of any credit enhancement
arrangements, payment  of  the  fees  and  disbursements  of  the  Trustee,  any
custodian  appointed by  the Trustee, the  certificate registrar  and any paying
agent, and  payment  of  expenses  incurred  in  enforcing  the  obligations  of
Sub-Servicers and Sellers. The Master Servicer will be entitled to reimbursement
of  expenses incurred in enforcing the  obligations of Sub-Servicers and Sellers
under certain limited circumstances. In addition, as indicated in the  preceding
section,  the  Master Servicer  will be  entitled  to reimbursement  for certain
expenses incurred by  it in connection  with any defaulted  Mortgage Loan as  to
which  it has determined that all recoverable Liquidation Proceeds and Insurance
Proceeds have been received  (a 'Liquidated Mortgage'),  and in connection  with
the restoration of Mortgaged Properties, such right of reimbursement being prior
to  the rights of Certificateholders to receive any related Liquidation Proceeds
(including Insurance Proceeds).
 
EVIDENCE AS TO COMPLIANCE
 
   
     Each Agreement will  provide that  on or before  a specified  date in  each
year,  a firm of independent public accountants  will furnish a statement to the
Trustee to  the effect  that,  on the  basis of  the  examination by  such  firm
conducted  substantially  in  compliance  with  the  Uniform  Single Attestation
Program for Mortgage  Bankers or the  Audit Program for  Mortgages serviced  for
FHLMC,  the servicing by or on behalf  of the Master Servicer of Mortgage Loans,
Private  Mortgage-Backed  Securities  or  Agency  Securities,  under  Agreements
substantially  similar  to  each  other (including  the  related  Agreement) was
conducted  in  compliance  with  such  agreements  except  for  any  significant
exceptions  or errors  in records that,  in the  opinion of the  firm, the Audit
Program for Mortgages serviced for FHLMC or the Uniform Single Audit Program for
Mortgage Bankers requires it to report. In rendering its statement such firm may
rely, as to matters relating to the direct servicing of Mortgage Loans,  Private
Mortgage-Backed   Securities  or   Agency  Securities   by  Sub-Servicers,  upon
comparable statements  for examinations  conducted substantially  in  compliance
with  the Uniform Single  Attestation Program for Mortgage  Bankers or the Audit
Program for  Mortgages serviced  for FHLMC  (rendered within  one year  of  such
statement)  of  firms  of independent  public  accountants with  respect  to the
related Sub-Servicer.
    
 
     Each Agreement will also provide for delivery to the Trustee, on or  before
a  specified date in each year, of an annual statement signed by two officers of
the Master Servicer  to the effect  that the Master  Servicer has fulfilled  its
obligations under the Agreement throughout the preceding year.
 
     Copies  of the annual accountants' statement  and the statement of officers
of the Master  Servicer may  be obtained  by Certificateholders  of the  related
Series without charge upon written request to the Master Servicer at the address
set forth in the related Prospectus Supplement.
 
LIST OF CERTIFICATEHOLDERS
 
     Each  Agreement will provide that three  or more holders of Certificates of
any Series may, by written request to the Trustee, obtain access to the list  of
all   Certificateholders  maintained   by  the   Trustee  for   the  purpose  of
communicating with other Certificateholders with  respect to their rights  under
the Agreement and the Certificates.
 
                                       49
 
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CERTAIN MATTERS REGARDING THE MASTER SERVICER AND THE DEPOSITOR
 
     The  Master  Servicer under  each Agreement  will be  named in  the related
Prospectus Supplement. The  entity serving  as Master Servicer  may have  normal
business relationships with the Depositor or the Depositor's affiliates.
 
     Each  Agreement will provide  that the Master Servicer  may not resign from
its obligations and duties under the Agreement except upon a determination  that
the  performance by it of  its duties thereunder is  no longer permissible under
applicable law. No such resignation will become effective until the Trustee or a
successor servicer  has assumed  the Master  Servicer's obligations  and  duties
under the Agreement.
 
     Each  Agreement will further provide that  neither the Master Servicer, the
Depositor nor any director, officer, employee,  or agent of the Master  Servicer
or  the  Depositor will  be under  any liability  to the  related Trust  Fund or
Certificateholders for any action taken or for refraining from the taking of any
action in  good faith  pursuant to  the Agreement,  or for  errors in  judgment;
provided,  however, that neither the Master Servicer, the Depositor nor any such
person will be protected against any  liability that would otherwise be  imposed
by  reason of willful misfeasance, bad faith or negligence in the performance of
duties thereunder or by reason of  reckless disregard of obligations and  duties
thereunder.  Each Agreement will  further provide that  the Master Servicer, the
Depositor and any director, officer, employee or agent of the Master Servicer or
the Depositor will be entitled to indemnification by the related Trust Fund  and
will  be  held  harmless against  any  loss,  liability or  expense  incurred in
connection with any legal action relating to the Agreement or the  Certificates,
other than any loss, liability or expense related to any specific Mortgage Asset
or  Mortgage  Assets  (except  any such  loss,  liability  or  expense otherwise
reimbursable pursuant  to the  Agreement)  and any  loss, liability  or  expense
incurred  by  reason of  willful  misfeasance, bad  faith  or negligence  in the
performance  of  duties  thereunder  or  by  reason  of  reckless  disregard  of
obligations and duties thereunder. In addition, each Agreement will provide that
neither  the Master Servicer nor  the Depositor will be  under any obligation to
appear in, prosecute or defend any legal  action which is not incidental to  its
respective  responsibilities under  the Agreement and  which in  its opinion may
involve it in  any expense or  liability. The Master  Servicer or the  Depositor
may,  however, in  its discretion  undertake any such  action which  it may deem
necessary or desirable with respect to  the Agreement and the rights and  duties
of  the parties thereto and the  interests of the Certificateholders thereunder.
In such event, the  legal expenses and  costs of such  action and any  liability
resulting  therefrom will be expenses, costs  and liabilities of the Trust Fund,
and the Master Servicer or the Depositor,  as the case may be, will be  entitled
to   be   reimbursed  therefor   out   of  funds   otherwise   distributable  to
Certificateholders.
 
     Any person into which the Master Servicer may be merged or consolidated, or
any person  resulting from  any  merger or  consolidation  to which  the  Master
Servicer  is a  party, or any  person succeeding  to the business  of the Master
Servicer, will be  the successor of  the Master Servicer  under each  Agreement,
provided  that such person is  qualified to sell mortgage  loans to, and service
mortgage loans  on behalf  of, FNMA  or  FHLMC and  further provided  that  such
merger,  consolidation or succession does not  adversely affect the then current
rating or ratings of the  class or classes of  Certificates of such Series  that
have been rated.
 
EVENTS OF DEFAULT
 
   
     Unless  otherwise specified in the related Prospectus Supplement, Events of
Default under  each Agreement  will consist  of (i)  any failure  by the  Master
Servicer  to deposit  in the  Certificate Account  or remit  to the  Trustee any
payment (other than an Advance) which  continues unremedied for five days  after
the  giving of  written notice  of such  failure to  the Master  Servicer by the
Trustee or the  Depositor, or  to the  Master Servicer  and the  Trustee by  the
holders  of Certificates having not less than 25% of the Voting Rights evidenced
by the Certificates; (ii) any failure by the Master Servicer to make an  Advance
as  required under the  Agreement, unless cured as  specified therein; (iii) any
failure by the Master Servicer to observe or perform in any material respect any
of its other covenants or agreements in the Agreement which continues unremedied
for sixty days after the giving of written notice of such failure to the  Master
Servicer  by the  Trustee or the  Depositor, or  to the Master  Servicer and the
Trustee by the holders of Certificates of any class evidencing not less than 25%
of the Voting Rights  evidenced by the Certificate;  and (iv) certain events  of
insolvency,  readjustment  of debt,  marshalling  of assets  and  liabilities or
similar proceeding and certain  actions by or on  behalf of the Master  Servicer
indicating  its insolvency, reorganization or  inability to pay its obligations.
'Voting Rights' are  the portion  of voting rights  of all  of the  Certificates
which is allocated to any Certificate pursuant to the terms of the Agreement.
    
 
                                       50
 
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<PAGE>
     If  specified  in the  related  Prospectus Supplement,  the  Agreement will
permit the Trustee to sell the Mortgage Assets and the other assets of the Trust
Fund in the  event that  payments in respect  thereto are  insufficient to  make
payments  required in the Agreement.  The assets of the  Trust Fund will be sold
only under  the  circumstances  and  in the  manner  specified  in  the  related
Prospectus Supplement.
 
RIGHTS UPON EVENT OF DEFAULT
 
   
     So  long as an Event of Default  under an Agreement remains unremedied, the
Depositor or the Trustee  may, and at the  direction of holders of  Certificates
having not less than 25% of the Voting Rights and under such other circumstances
as  may be specified in such Agreement,  the Trustee shall, terminate all of the
rights and obligations of  the Master Servicer under  the Agreement relating  to
such  Trust Fund and in  and to the Mortgage  Assets, whereupon the Trustee will
succeed to all  of the responsibilities,  duties and liabilities  of the  Master
Servicer  under the Agreement, including, if specified in the related Prospectus
Supplement, the obligation  to make Advances,  and will be  entitled to  similar
compensation  arrangements. In the event that the Trustee is unwilling or unable
so to act, it may appoint, or petition a court of competent jurisdiction for the
appointment of, a  mortgage loan servicing  institution with a  net worth of  at
least  $10,000,000  to  act  as  successor  to  the  Master  Servicer  under the
Agreement. Pending such  appointment, the Trustee  is obligated to  act in  such
capacity.  The  Trustee and  any  such successor  may  agree upon  the servicing
compensation to be  paid to the  successor servicer,  which in no  event may  be
greater  than  the  compensation  payable  to  the  Master  Servicer  under  the
Agreement.
    
 
   
     No Certificateholder,  solely  by  virtue  of such  holder's  status  as  a
Certificateholder,  will have  any right  under any  Agreement to  institute any
proceeding with respect  to such  Agreement, unless such  holder previously  has
given  to the Trustee  written notice of  default and unless  the holders of any
class of Certificates of such Series evidencing not less than 25% of the  Voting
Rights  have made written request upon  the Trustee to institute such proceeding
in its own name as Trustee thereunder and have offered to the Trustee reasonable
indemnity, and the Trustee for 60 days has neglected or refused to institute any
such proceeding.
    
 
AMENDMENT
 
   
     Unless otherwise  specified  in  the related  Prospectus  Supplement,  each
Agreement  may be amended by the Depositor, the Master Servicer and the Trustee,
without the consent of any of the Certificateholders, (i) to cure any ambiguity;
(ii) to correct or  supplement any provision therein  which may be defective  or
inconsistent  with  any other  provision  therein; or  (iii)  to make  any other
revisions with respect to matters or questions arising under the Agreement  that
are not inconsistent with the provisions thereof, provided that such action will
not  as evidenced  by an  opinion of counsel,  adversely affect  in any material
respect the interests of any Certificateholder; provided, however, that no  such
opinion  of counsel  will be  required if  the person  requesting such amendment
obtains a letter from each rating agency requested to rate the class or  classes
of  Certificates of such Series  stating that such amendment  will not result in
the downgrading or withdrawal  of the respective ratings  then assigned to  such
Certificates.  In addition, to the extent  provided in the related Agreement, an
Agreement may be amended without the consent of any of the Certificateholders to
change the manner in which the Certificate Account is maintained, provided  that
any  such change does not adversely affect  the then current rating of the class
or classes of Certificates of such Series that have been rated. In addition,  if
a REMIC election is made with respect to a Trust Fund, the related Agreement may
be  amended to modify, eliminate or add to  any of its provisions to such extent
as may be necessary to maintain the qualification of the related Trust Fund as a
REMIC, provided  that the  Trustee has  received an  opinion of  counsel to  the
effect  that such action is necessary or helpful to maintain such qualification.
Unless otherwise specified in the related Prospectus Supplement, each  Agreement
may  also be amended by the Depositor,  the Master Servicer and the Trustee with
the consent of holders of Certificates  of such Series evidencing a majority  in
interest of each class affected thereby for the purpose of adding any provisions
to  or  changing in  any  manner or  eliminating any  of  the provisions  of the
Agreement or of modifying in any manner the rights of the holders of the related
Certificates; provided, however, that  no such amendment may  (i) reduce in  any
manner  the amount  of, or  delay the timing  of, payments  received on Mortgage
Assets that  are required  to  be distributed  on  any Certificate  without  the
consent of the holder of such Certificate, (ii) adversely affect in any material
respect  the interests of the  holders of any class  of Certificates in a manner
other than  as  described  in  (i),  without  the  consent  of  the  holders  of
Certificates  of such class  evidencing, as to  such class, percentage interests
aggregating 66%, (iii) reduce  the aforesaid percentage  of Certificates of  any
class    of   holders    that   is   required    to   consent    to   any   such
    
 
                                       51
 
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<PAGE>
amendment without the consent of the  holders of all Certificates of such  class
covered  by such Agreement  then outstanding. If  a REMIC election  is made with
respect to a  Trust Fund,  the Trustee  will not be  entitled to  consent to  an
amendment  to the related Agreement without  having first received an opinion of
counsel to the effect that such amendment will not cause such Trust Fund to fail
to qualify as a REMIC.
 
TERMINATION; OPTIONAL TERMINATION
 
     Unless otherwise  specified  in  the  related  Agreement,  the  obligations
created  by each Agreement  for each Series of  Certificates will terminate upon
the payment  to  the related  Certificateholders  of  all amounts  held  in  the
Certificate  Account or by the  Master Servicer and required  to be paid to them
pursuant to such Agreement following the later of (i) the final payment or other
liquidation  of  the  last  of  the  Mortgage  Assets  subject  thereto  or  the
disposition  of  all property  acquired upon  foreclosure  of any  such Mortgage
Assets remaining in the Trust Fund and (ii) the purchase by the Master  Servicer
or,  if  REMIC  treatment has  been  elected  and if  specified  in  the related
Prospectus Supplement, by the holder of the residual interest in the REMIC  (see
'Certain  Federal Income Tax  Consequences' below and  in the related Prospectus
Supplement), from the related Trust Fund of all of the remaining Mortgage Assets
and all property acquired in respect of such Mortgage Assets.
 
     Unless otherwise  specified  in  the  related  Prospectus  Supplement,  any
purchase  of Mortgage Assets and property acquired in respect of Mortgage Assets
evidenced by a Series of Certificates will  be made at the option of the  Master
Servicer  or, if  applicable, the  holder of the  REMIC residual  interest, at a
price,  and  in  accordance  with  the  procedures,  specified  in  the  related
Prospectus  Supplement. The exercise of such  right will effect early retirement
of the Certificates of that Series, but the right of the Master Servicer or,  if
applicable,  such  holder of  the  REMIC residual  interest,  to so  purchase is
subject to the principal balance of the related Mortgage Assets being less  than
the  percentage specified in the related  Prospectus Supplement of the aggregate
principal balance of the Mortgage Assets at the Cut-off Date for the Series. The
foregoing is subject  to the provision  that if  a REMIC election  is made  with
respect  to a Trust Fund,  any repurchase pursuant to  clause (ii) above will be
made only in connection with a  'qualified liquidation' of the REMIC within  the
meaning of Section 860F(g)(4) of the Code.
 
THE TRUSTEE
 
     The Trustee under each Agreement will be named in the applicable Prospectus
Supplement.  The commercial  bank or trust  company serving as  Trustee may have
normal banking relationships with the Depositor, the Master Servicer and any  of
their respective affiliates.
 
                  CERTAIN LEGAL ASPECTS OF THE MORTGAGE LOANS
 
     The  following discussion contains summaries,  which are general in nature,
of certain legal  matters relating  to the  Mortgage Loans.  Because such  legal
aspects  are governed primarily  by applicable state law  (which laws may differ
substantially), the summaries do  not purport to be  complete or to reflect  the
laws of any particular state or to encompass the laws of all states in which the
security  for the  Mortgage Loans  is situated.  The summaries  are qualified in
their entirety  by reference  to the  appropriate laws  of the  states in  which
Mortgage Loans may be originated.
 
GENERAL
 
     The  Mortgage Loans will be secured  by deeds of trust, mortgages, security
deeds or deeds  to secure debt,  depending upon the  prevailing practice in  the
state  in which the property subject to the  loan is located. Deeds of trust are
used almost exclusively in California instead of mortgages. A mortgage creates a
lien upon the real property encumbered by the mortgage, which lien is  generally
not  prior to the lien  for real estate taxes  and assessments. Priority between
mortgages depends on their terms and generally on the order of recording with  a
state  or county office. There are two parties to a mortgage, the mortgagor, who
is the borrower and owner of the  mortgaged property, and the mortgagee, who  is
the  lender.  Under  the  mortgage instrument,  the  mortgagor  delivers  to the
mortgagee a note or bond and the  mortgage. Although a deed of trust is  similar
to a mortgage, a deed of trust formally has three parties, the borrower-property
owner  called  the trustor  (similar to  a  mortgagor), a  lender (similar  to a
mortgagee) called the beneficiary, and a third-party grantee called the trustee.
Under a deed of trust, the  borrower grants the property, irrevocably until  the
debt is paid, in trust, generally with a power of sale, to the trustee to secure
payment of the obligation. A security deed and a deed to secure debt are special
types  of deeds which indicate on their face  that they are granted to secure an
underlying debt.
 
                                       52
 
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<PAGE>
By executing a security deed or deed  to secure debt, the grantor conveys  title
to,  as opposed  to merely  creating a  lien upon,  the subject  property to the
grantee until  such  time  as  the underlying  debt  is  repaid.  The  trustee's
authority  under a deed of trust, the mortgagee's authority under a mortgage and
the grantee's  authority  under a  security  deed or  deed  to secure  debt  are
governed  by law and, with respect to some deeds of trust, the directions of the
beneficiary.
 
     Cooperatives.  Certain of the Mortgage Loans may be Cooperative Loans.  The
Cooperative owns all the real property that comprises the project, including the
land,  separate dwelling units and all common areas. The Cooperative is directly
responsible for project management  and, in most cases,  payment of real  estate
taxes  and hazard and liability insurance. If there is a blanket mortgage on the
Cooperative and/or underlying land, as  is generally the case, the  Cooperative,
as   project  mortgagor,  is   also  responsible  for   meeting  these  mortgage
obligations. A blanket  mortgage is  ordinarily incurred by  the Cooperative  in
connection  with  the construction  or purchase  of the  Cooperative's apartment
building. The interest  of the  occupant under proprietary  leases or  occupancy
agreements to which that Cooperative is a party are generally subordinate to the
interest  of  the  holder of  the  blanket  mortgage in  that  building.  If the
Cooperative is unable to meet the payment obligations arising under its  blanket
mortgage,  the mortgagee  holding the blanket  mortgage could  foreclose on that
mortgage  and  terminate  all  subordinate  proprietary  leases  and   occupancy
agreements.  In  addition, the  blanket mortgage  on  a Cooperative  may provide
financing in  the  form of  a  mortgage that  does  not fully  amortize  with  a
significant  portion of principal being  due in one lump  sum at final maturity.
The inability of the Cooperative to  refinance this mortgage and its  consequent
inability  to make such final payment could lead to foreclosure by the mortgagee
providing the financing.  A foreclosure  in either event  by the  holder of  the
blanket  mortgage could  eliminate or  significantly diminish  the value  of any
collateral held  by  the lender  who  financed  the purchase  by  an  individual
tenant-stockholder  of  Cooperative  shares or,  in  the  case of  a  Trust Fund
including Cooperative Loans, the collateral securing the Cooperative Loans.
 
     The Cooperative is owned by  tenant-stockholders who, through ownership  of
stock, shares or membership certificates in the corporation, receive proprietary
leases  or occupancy agreements which confer exclusive rights to occupy specific
units. Generally,  a tenant-stockholder  of a  Cooperative must  make a  monthly
payment to the Cooperative representing such tenant-stockholder's pro rata share
of  the Cooperative's  payments for its  blanket mortgage,  real property taxes,
maintenance expenses  and  other  capital or  ordinary  expenses.  An  ownership
interest  in  a  Cooperative  and  accompanying  rights  is  financed  through a
Cooperative share loan evidenced by a promissory note and secured by a  security
interest  in the  occupancy agreement  or proprietary  lease and  in the related
Cooperative shares. The lender takes possession  of the share certificate and  a
counterpart  of the  proprietary lease or  occupancy agreement,  and a financing
statement  covering  the  proprietary  lease  or  occupancy  agreement  and  the
Cooperative  shares  is filed  in  the appropriate  state  and local  offices to
perfect the  lender's interest  in its  collateral. Subject  to the  limitations
discussed  below, upon default of the tenant-stockholder, the lender may sue for
judgment on  the promissory  note, dispose  of  the collateral  at a  public  or
private  sale or otherwise proceed  against the collateral or tenant-stockholder
as an individual as provided in  the security agreement covering the  assignment
of  the proprietary lease  or occupancy agreement and  the pledge of Cooperative
shares.
 
FORECLOSURE/REPOSSESSION
 
     Deed of Trust.  Foreclosure of a deed of trust is generally accomplished by
a non-judicial  sale under  a specific  provision  in the  deed of  trust  which
authorizes  the trustee to sell the property  at public auction upon any default
by the borrower under the terms of the note or deed of trust. In certain states,
such foreclosure  also may  be accomplished  by judicial  action in  the  manner
provided  for foreclosure of mortgages. In  some states, such as California, the
trustee must record a notice of default and send a copy to the  borrower-trustor
and to any person who has recorded a request for a copy of any notice of default
and  notice of sale. In addition, the trustee must provide notice in some states
to any  other individual  having an  interest of  record in  the real  property,
including  any junior lienholders. If the deed of trust is not reinstated within
any applicable cure period, a  notice of sale must be  posted in a public  place
and,  in most states, including California,  published for a specified period of
time in one  or more newspapers.  In addition, these  notice provisions  require
that  a copy of  the notice of  sale be posted  on the property  and sent to all
parties having an interest of record in the property. In California, the  entire
process  from recording a notice of default to a non-judicial sale usually takes
four to five months.
 
     In some states, including California, the borrower-trustor has the right to
reinstate the  loan at  any  time following  default  until shortly  before  the
trustee's sale. In general, the borrower, or any other
 
                                       53
 
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person   having  a  junior  encumbrance  on  the  real  estate,  may,  during  a
reinstatement period, cure the  default by paying the  entire amount in  arrears
plus  the costs and expenses incurred in enforcing the obligation. Certain state
laws control the amount of foreclosure expenses and costs, including  attorney's
fees, which may be recoverable by a lender.
 
     Mortgages.  Foreclosure of a mortgage is generally accomplished by judicial
action.  The action  is initiated  by the  service of  legal pleadings  upon all
parties having an  interest in the  real property. Delays  in completion of  the
foreclosure  may  occasionally result  from  difficulties in  locating necessary
parties. Judicial foreclosure proceedings are often not contested by any of  the
parties.  When  the mortgagee's  right to  foreclosure  is contested,  the legal
proceedings necessary to  resolve the  issue can  be time  consuming. After  the
completion  of a judicial  foreclosure proceeding, the  court generally issues a
judgment of foreclosure and appoints a referee or other court officer to conduct
the sale of the property. In general, the borrower, or any other person having a
junior encumbrance  on the  real estate,  may, during  a statutorily  prescribed
reinstatement  period, cure  a monetary default  by paying the  entire amount in
arrears plus  other designated  costs  and expenses  incurred in  enforcing  the
obligation. Generally, state law controls the amount of foreclosure expenses and
costs,  including attorney's fees, which may be recovered by a lender. After the
reinstatement period  has expired  without the  default having  been cured,  the
borrower  or junior lienholder no longer has the right to reinstate the loan and
must pay the loan in full to prevent the scheduled foreclosure sale. If the deed
of trust is not reinstated,  a notice of sale must  be posted in a public  place
and,  in most  states, published for  a specific period  of time in  one or more
newspapers. In addition, some state  laws require that a  copy of the notice  of
sale be posted on the property and sent to all parties having an interest in the
real property.
 
     Although  foreclosure sales are typically public sales, frequently no third
party purchaser bids in excess of the lender's lien because of the difficulty of
determining  the  exact  status   of  title  to   the  property,  the   possible
deterioration   of  the  property  during  the  foreclosure  proceedings  and  a
requirement that the  purchaser pay  for the property  in cash  or by  cashier's
check. Thus the foreclosing lender often purchases the property from the trustee
or  referee for an  amount equal to  the principal amount  outstanding under the
loan, accrued and unpaid interest  and the expenses of foreclosure.  Thereafter,
the  lender  will assume  the burden  of  ownership, including  obtaining hazard
insurance and making such repairs at its own expense as are necessary to  render
the  property suitable for sale. The lender will commonly obtain the services of
a real estate broker and pay the broker's commission in connection with the sale
of the property. Depending upon market conditions, the ultimate proceeds of  the
sale of the property may not equal the lender's investment in the property.
 
     Courts  have imposed  general equitable principles  upon foreclosure, which
are generally designed to mitigate the legal consequences to the borrower of the
borrower's defaults under the loan documents.  Some courts have been faced  with
the  issue of whether federal or  state constitutional provisions reflecting due
process concerns for  fair notice require  that borrowers under  deeds of  trust
receive  notice longer than that prescribed by statute. For the most part, these
cases have upheld the notice provisions  as being reasonable or have found  that
the  sale by a trustee  under a deed of trust  does not involve sufficient state
action to afford constitutional protection to the borrower.
 
     Cooperative Loans.  The Cooperative shares owned by the  tenant-stockholder
and  pledged to the lender are, in  almost all cases, subject to restrictions on
transfer as  set forth  in the  Cooperative's certificate  of incorporation  and
bylaws,  as well  as the  proprietary lease or  occupancy agreement,  and may be
cancelled by the Cooperative for failure  by the tenant-stockholder to pay  rent
or  other  obligations or  charges  owed by  such  tenant-stockholder, including
mechanics' liens against  the cooperative  apartment building  incurred by  such
tenant-stockholder.  The  proprietary  lease  or  occupancy  agreement generally
permits the Cooperative  to terminate such  lease or agreement  in the event  an
obligor  fails  to make  payments or  defaults in  the performance  of covenants
required thereunder.  Typically, the  lender and  the Cooperative  enter into  a
recognition  agreement  which establishes  the  rights and  obligations  of both
parties in the event of a  default by the tenant-stockholder on its  obligations
under  the proprietary  lease or occupancy  agreement. A default  by the tenant-
stockholder under  the proprietary  lease or  occupancy agreement  will  usually
constitute  a default  under the security  agreement between the  lender and the
tenant-stockholder.
 
     The recognition agreement generally  provides that, in  the event that  the
tenant-stockholder  has  defaulted  under  the  proprietary  lease  or occupancy
agreement, the  Cooperative will  take  no action  to  terminate such  lease  or
agreement  until the lender  has been provided  with an opportunity  to cure the
default. The recognition  agreement typically provides  that if the  proprietary
lease  or occupancy agreement is terminated,  the Cooperative will recognize the
lender's lien against proceeds from the sale
 
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<PAGE>
of the Cooperative apartment,  subject, however, to  the Cooperative's right  to
sums  due under such proprietary lease  or occupancy agreement. The total amount
owed to the Cooperative  by the tenant-stockholder,  which the lender  generally
cannot  restrict and does not monitor, could  reduce the value of the collateral
below the outstanding principal balance of the Cooperative Loan and accrued  and
unpaid interest thereon.
 
     Recognition agreements also provide that in the event of a foreclosure on a
Cooperative  Loan,  the  lender  must  obtain the  approval  or  consent  of the
Cooperative as  required  by  the  proprietary  lease  before  transferring  the
Cooperative  shares or assigning the proprietary lease. Generally, the lender is
not limited in any rights it may have to dispossess the tenant-stockholders.
 
     In some states, foreclosure on the Cooperative shares is accomplished by  a
sale  in accordance with the  provisions of Article 9  of the Uniform Commercial
Code (the 'UCC') and the security agreement relating to those shares. Article  9
of  the UCC  requires that  a sale be  conducted in  a 'commercially reasonable'
manner. Whether  a  foreclosure  sale  has been  conducted  in  a  'commercially
reasonable'  manner  will  depend on  the  facts  in each  case.  In determining
commercial reasonableness, a court will look to the notice given the debtor  and
the  method, manner, time, place and terms of the foreclosure. Generally, a sale
conducted according to the  usual practice of  banks selling similar  collateral
will be considered reasonably conducted.
 
     Article 9 of the UCC provides that the proceeds of the sale will be applied
first  to  pay the  costs  and expenses  of  the sale  and  then to  satisfy the
indebtedness  secured  by  the  lender's  security  interest.  The   recognition
agreement,  however, generally provides that the lender's right to reimbursement
is subject  to the  right  of the  Cooperative to  receive  sums due  under  the
proprietary  lease or occupancy agreement. If  there are proceeds remaining, the
lender must account to the tenant-stockholder for the surplus. Conversely, if  a
portion  of the indebtedness remains unpaid, the tenant-stockholder is generally
responsible for  the  deficiency.  See 'Anti-Deficiency  Legislation  and  Other
Limitations on Lenders' below.
 
     In  the case of foreclosure on a building which was converted from a rental
building to a building  owned by a Cooperative  under a non-eviction plan,  some
states  require that a purchaser at a foreclosure sale take the property subject
to rent control and rent stabilization  laws which apply to certain tenants  who
elected  to  remain in  the  building but  who did  not  purchase shares  in the
Cooperative when the building was so converted.
 
RIGHTS OF REDEMPTION
 
     In some states after sale pursuant to  a deed of trust or foreclosure of  a
mortgage,  the  borrower  and  certain foreclosed  junior  lienors  are  given a
statutory period in which to redeem  the property from the foreclosure sale.  In
certain  other states,  including California,  this right  of redemption applies
only to sales  following judicial foreclosure,  and not to  sales pursuant to  a
non-judicial  power of  sale. In  most states where  the right  of redemption is
available, statutory  redemption  may  occur upon  payment  of  the  foreclosure
purchase  price, accrued interest and taxes. In some states, the right to redeem
is an equitable right. The  effect of a right of  redemption is to diminish  the
ability  of the lender to sell the  foreclosed property. The exercise of a right
of redemption would defeat the title of any purchaser at a foreclosure sale,  or
of  any purchaser  from the  lender subsequent  to judicial  foreclosure or sale
under a deed  of trust.  Consequently, the  practical effect  of the  redemption
right  is to  force the lender  to retain the  property and pay  the expenses of
ownership until the redemption period has run.
 
ANTI-DEFICIENCY LEGISLATION AND OTHER LIMITATIONS ON LENDERS
 
     Certain states have imposed statutory restrictions that limit the  remedies
of  a beneficiary under a deed of trust or a mortgagee under a mortgage. In some
states, including California,  statutes limit  the right of  the beneficiary  or
mortgagee  to  obtain  a  deficiency  judgment  against  the  borrower following
foreclosure or sale under a deed of  trust. A deficiency judgment is a  personal
judgment  against the borrower equal in most cases to the difference between the
amount due to the lender  and the current fair market  value of the property  at
the  time of  the foreclosure  sale. As  a result  of these  prohibitions, it is
anticipated that  in  most  instances  the  Master  Servicer  will  utilize  the
non-judicial  foreclosure remedy and will  not seek deficiency judgments against
defaulting Mortgagors.
 
     Some state statutes may require the beneficiary or mortgagee to exhaust the
security afforded under a deed of trust or mortgage by foreclosure in an attempt
to satisfy the full debt before bringing a personal action against the borrower.
In certain other states, the lender has the option of bringing a personal action
against the  borrower  on  the  debt without  first  exhausting  such  security;
however, in
 
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some  of these states,  the lender, following judgment  on such personal action,
may be deemed  to have elected  a remedy  and may be  precluded from  exercising
remedies with respect to the security. Consequently, the practical effect of the
election  requirement,  when applicable,  is that  lenders will  usually proceed
first against the security  rather than bringing a  personal action against  the
borrower.
 
     In some states, exceptions to the anti-deficiency statutes are provided for
in  certain instances where the value of the lender's security has been impaired
by acts or omissions of the borrower, for example, in the event of waste of  the
property.
 
     In  addition  to anti-deficiency  and  related legislation,  numerous other
federal and state statutory provisions,  including the federal bankruptcy  laws,
the  federal Soldiers'  and Sailors'  Civil Relief  Act of  1940 and  state laws
affording relief to  debtors, may interfere  with or affect  the ability of  the
secured  mortgage  lender  to  realize  upon its  security.  For  example,  in a
proceeding under the federal  Bankruptcy Code, a lender  may not foreclose on  a
mortgaged   property  without  the  permission  of  the  bankruptcy  court.  The
rehabilitation plan  proposed  by  the  debtor may  provide,  if  the  mortgaged
property  is not the debtor's principal  residence and the court determines that
the value of the mortgaged  property is less than  the principal balance of  the
mortgage loan, for the reduction of the secured indebtedness to the value of the
mortgaged  property  as  of the  date  of  the commencement  of  the bankruptcy,
rendering the lender a general unsecured  creditor for the difference, and  also
may reduce the monthly payments due under such mortgage loan, change the rate of
interest  and alter the mortgage loan repayment schedule. The effect of any such
proceedings under the federal Bankruptcy Code, including but not limited to  any
automatic  stay, could  result in delays  in receiving payments  on the Mortgage
Loans underlying  a  Series  of  Certificates and  possible  reductions  in  the
aggregate amount of such payments.
 
     The federal tax laws provide priority to certain tax liens over the lien of
a mortgage or secured party. Numerous federal and state consumer protection laws
impose  substantive requirements  upon mortgage  lenders in  connection with the
origination, servicing and enforcement of mortgage loans. These laws include the
federal Truth-in-Lending  Act,  Real  Estate Settlement  Procedures  Act,  Equal
Credit  Opportunity Act, Fair Credit Billing  Act, Fair Credit Reporting Act and
related statutes and regulations. These  federal and state laws impose  specific
statutory liabilities upon lenders who fail to comply with the provisions of the
law.  In  some  cases, this  liability  may  affect assignees  of  the  loans or
contracts.
 
     Generally, Article 9 of the  UCC governs foreclosure on Cooperative  shares
and  the  related proprietary  lease or  occupancy  agreement. Some  courts have
interpreted section 9-504 of the UCC  to prohibit a deficiency award unless  the
creditor  establishes that the sale  of the collateral (which,  in the case of a
Cooperative Loan,  would  be the  shares  of  the Cooperative  and  the  related
proprietary  lease  or  occupancy  agreement) was  conducted  in  a commercially
reasonable manner.
 
ENVIRONMENTAL RISKS
 
     Real property pledged as security to a lender may be subject to  unforeseen
environmental  risks.  Under  the laws  of  certain states,  contamination  of a
property may give rise to  a lien on the property  to assure the payment of  the
costs  of clean-up. In several states such a  lien has priority over the lien of
an existing  mortgage against  such  property. In  addition, under  the  federal
Comprehensive  Environmental Response,  Compensation and  Liability Act  of 1980
('CERCLA'), the United States Environmental Protection Agency ('EPA') may impose
a lien on property where the EPA has incurred clean-up costs. However, a  CERCLA
lien is subordinate to pre-existing, perfected security interests.
 
   
     Under  the laws of some states, and  under CERCLA, it is conceivable that a
secured lender may be held liable as  an 'owner' or 'operator' for the costs  of
addressing  releases  or  threatened  releases  of  hazardous  substances  at  a
Mortgaged Property, even though the environmental damage or threat was caused by
a prior or current owner or operator. CERCLA imposes liability for such costs on
any and  all  'responsible parties,'  including  owners or  operators.  However,
CERCLA  excludes from the  definition of 'owner or  operator' a secured creditor
who holds indicia of ownership primarily  to protect its security interest  (the
'secured  creditor exclusion'). Thus, if a lender's activities begin to encroach
on the actual management of a contaminated facility or property, the lender  may
incur  liability as an 'owner or operator'  under CERCLA. Similarly, if a lender
forecloses and takes title  to a contaminated facility  or property, the  lender
may  incur CERCLA liability in various circumstances, including, but not limited
to, when it holds the facility  or property as an investment (including  leasing
the facility or property to a third party), or fails to market the property in a
timely fashion.
    
 
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     A  decision  in May  1990 of  the United  States Court  of Appeals  for the
Eleventh Circuit in United States v. Fleet Factors Corp. very narrowly construed
CERCLA's secured creditor exclusion. The Court's opinion suggested that a lender
need not have involved itself in  the day-to-day operations of the facility,  or
participated  in decisions  related to hazardous  waste to be  held liable under
CERCLA; rather, liability could attach to  a lender if its involvement with  the
management  of the facility  is broad enough  to support the  inference that the
lender had the capacity to  influence the borrower's hazardous waste  management
practices.  The Court added that a lender's capacity to influence such decisions
could be inferred from the extent of its involvement in the facility's financial
management. In January 1991,  the Supreme Court denied  certiorari in the  Fleet
Factors  case, thereby letting the Court  of Appeals decision stand. In response
to the Fleet  Factors decision, on  April 29, 1992,  the EPA issued  regulations
interpreting  and delineating CERCLA's secured  creditor exclusion and the range
of permissible actions that may be undertaken by a holder of a security interest
in a contaminated property without exceeding the bounds of the secured  creditor
exclusion.  However, on February 4, 1994, the United States Court of Appeals for
the District of Columbia Circuit issued a decision in Kelley v. EPA invalidating
the EPA  regulations.  Further,  in  January  1995,  the  Supreme  Court  denied
certiorari  in the  Kelley case, thereby  letting the Court  of Appeals decision
stand. In September 1995, the  EPA and the U.S.  Department of Justice issued  a
guidance  document stating that the two  agencies, respectively, would apply the
1992 regulations in prosecuting  enforcement and cost  recovery actions, and  in
otherwise  addressing  lender  liability under  CERCLA.  However,  this guidance
document is not binding  on any parties other  than the federal government,  and
need  not  be applied  by the  courts  in adjudicating  CERCLA cost  recovery or
contribution actions brought by states, municipalities or private parties.
    
 
   
     As a result of the  Kelley decision, the state of  the law with respect  to
the  secured creditor exclusion  remains unclear. Proposed  amendments to CERCLA
that would clarify  the range  of actions a  secured creditor  may take  without
losing  the benefit of the exclusion have  been introduced in Congress, but have
not been enacted. However,  even if CERCLA were  to be amended, such  amendments
would  not affect the potential for liability  under other federal or state laws
which impose  liability  on  'owners  or  operators'  but  do  not  provide  any
protection for secured creditors.
    
 
   
     If  a lender is or becomes liable,  it can bring an action for contribution
against any other 'responsible parties,' including a previous owner or operator,
who created  the environmental  hazard, but  those persons  or entities  may  be
bankrupt  or otherwise judgment  proof. The costs  associated with environmental
cleanup may be substantial. It is  conceivable that such costs arising from  the
circumstances set forth above would result in a loss to Certificateholders.
    
 
   
     CERCLA  does  not apply  to petroleum  products,  and the  secured creditor
exclusion does not govern liability for  cleanup costs under federal laws  other
than  CERCLA, in particular Subtitle I  of the federal Resource Conservation and
Recovery Act  ('RCRA'),  which  regulates underground  petroleum  storage  tanks
(except  heating oil  tanks). The  EPA has adopted  a lender  liability rule for
underground storage tanks under Subtitle I of RCRA. Under such rule, a holder of
a security interest in an underground  storage tank or real property  containing
an  underground storage  tank is not  considered an operator  of the underground
storage tank as long as petroleum is  not added to, stored in or dispensed  from
the  tank. It should be noted, however,  that liability for cleanup of petroleum
contamination may  be governed  by state  law,  which may  not provide  for  any
specific protection for secured creditors.
    
 
     Except  as otherwise specified in  the applicable Prospectus Supplement, at
the time the Mortgage  Loans were originated, no  environmental assessment or  a
very limited environmental assessment of the Mortgage Properties was conducted.
 
DUE-ON-SALE CLAUSES
 
     Unless  otherwise  provided  in  the  related  Prospectus  Supplement, each
conventional  Mortgage  Loan  will  contain  a  due-on-sale  clause  which  will
generally  provide that if the mortgagor  or obligor sells, transfers or conveys
the Mortgaged Property, the loan may be accelerated by the mortgagee. In  recent
years,   court  decisions  and  legislative   actions  have  placed  substantial
restriction on the right of lenders to enforce such clauses in many states.  For
instance,  the California  Supreme Court  in August  1978 held  that due-on-sale
clauses were generally  unenforceable. However, the  Garn-St Germain  Depository
Institutions  Act  of  1982  (the 'Garn-St  Germain  Act'),  subject  to certain
exceptions, preempts state  constitutional, statutory and  case law  prohibiting
the enforcement of due-on-sale clauses. As to loans secured by an owner-occupied
residence, the Garn-St Germain Act sets forth nine specific instances in which a
mortgagee covered by the Garn-St Germain Act may not exercise its rights under a
due-on-sale clause, notwithstanding the fact that a transfer of the property may
have occurred. The
 
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inability  to enforce a due-on-sale clause may result in transfer of the related
Mortgaged Property  to  an  uncreditworthy  person,  which  could  increase  the
likelihood of default or may result in a mortgage bearing an interest rate below
the  current market rate being assumed by a new home buyer, which may affect the
average life of the Mortgage  Loans and the number  of Mortgage Loans which  may
extend to maturity.
 
PREPAYMENT CHARGES
 
     Under  certain state  laws, prepayment charges  may not be  imposed after a
certain period of time following the origination of mortgage loans with  respect
to  prepayments on loans secured by liens encumbering owner-occupied residential
properties. Since many of the Mortgaged Properties will be owner-occupied, it is
anticipated that prepayment charges may not  be imposed with respect to many  of
the  Mortgage Loans. The absence of such a restraint on prepayment, particularly
with respect to  fixed rate  Mortgage Loans  having higher  Mortgage Rates,  may
increase  the likelihood of refinancing or  other early retirement of such loans
or contracts.
 
APPLICABILITY OF USURY LAWS
 
     Title V of  the Depository Institutions  Deregulation and Monetary  Control
Act  of  1980, enacted  in March  1980  ('Title V'),  provides that  state usury
limitations shall not apply to certain types of residential first mortgage loans
originated by  certain  lenders after  March  31,  1980. The  Office  of  Thrift
Supervision,  as successor to the Federal Home Loan Bank Board, is authorized to
issue  rules   and  regulations   and  to   publish  interpretations   governing
implementation  of  Title  V.  The statute  authorized  the  states  to reimpose
interest rate limits by adopting, before April 1, 1983, a law or  constitutional
provision  which  expressly  rejects  an  application  of  the  federal  law. In
addition, even where Title V is not so rejected, any state is authorized by  the
law  to adopt a provision limiting discount  points or other charges on mortgage
loans covered by Title V. Certain states have taken action to reimpose  interest
rate limits and/or to limit discount points or other charges.
 
SOLDIERS' AND SAILORS' CIVIL RELIEF ACT
 
     Generally,  under the terms of the  Soldiers' and Sailors' Civil Relief Act
of 1940, as amended (the 'Relief  Act'), a borrower who enters military  service
after the origination of such borrower's mortgage loan (including a borrower who
is  a member of the  National Guard or is  in reserve status at  the time of the
origination of the mortgage loan and is later called to active duty) may not  be
charged interest above an annual rate of 6% during the period of such borrower's
active  duty status,  unless a  court orders  otherwise upon  application of the
lender. It is possible that such interest rate limitation could have an  effect,
for  an indeterminate period of  time, on the ability  of the Master Servicer to
collect full  amounts of  interest  on certain  of  the Mortgage  Loans.  Unless
otherwise  provided in  the applicable  Prospectus Supplement,  any shortfall in
interest collections  resulting from  the application  of the  Relief Act  could
result in losses to the holders of the Certificates. In addition, the Relief Act
imposes  limitations which  would impair the  ability of the  Master Servicer to
foreclose on an affected  Mortgage Loan during the  borrower's period of  active
duty  status. Thus, in  the event that  such a Mortgage  Loan goes into default,
there may be delays and losses occasioned  by the inability to realize upon  the
Mortgaged Property in a timely fashion.
 
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                    CERTAIN FEDERAL INCOME TAX CONSEQUENCES
 
   
     The  following  summary  of  the anticipated  material  federal  income tax
consequences of the purchase, ownership and disposition of Certificates is based
on the advice of  Brown & Wood  LLP, counsel to the  Depositor. This summary  is
based  on laws, regulations, including the  REMIC regulations promulgated by the
Treasury Department on December 23, 1992 and generally effective for REMICs with
start-up dates on or after November 12, 1991 (the 'REMIC Regulations'),  rulings
and  decisions now in effect  or (with respect to  regulations) proposed, all of
which are subject to change either prospectively or retroactively. This  summary
does  not  address  the federal  income  tax  consequences of  an  investment in
Certificates applicable  to all  categories  of investors,  some of  which  (for
example,  banks  and  insurance  companies) may  be  subject  to  special rules.
Prospective investors should consult their  tax advisors regarding the  federal,
state,  local and any other tax consequences  to them of the purchase, ownership
and disposition of Certificates.
    
 
GENERAL
 
     The  federal  income  tax  consequences  to  Certificateholders  will  vary
depending  on whether an election is made to  treat the Trust Fund relating to a
particular Series of  Certificates as  a REMIC  under the  Code. The  Prospectus
Supplement for each Series of Certificates will specify whether a REMIC election
will be made.
 
NON-REMIC CERTIFICATES
 
   
     If  a REMIC election is not made, Brown & Wood LLP will deliver its opinion
that the  Trust Fund  will not  be classified  as an  association taxable  as  a
corporation  and that each such Trust Fund will be classified as a grantor trust
under subpart E, Part  I of subchapter  J of the Internal  Revenue Code of  1986
(the  'Code' referred  to in this  section unless otherwise  indicated). In this
case, owners of Certificates will be treated for federal income tax purposes  as
owners of a portion of the Trust Fund's assets as described below.
    
 
A. SINGLE CLASS OF CERTIFICATES
 
     Characterization.    The  Trust  Fund  may be  created  with  one  class of
Certificates. In this case, each Certificateholder will be treated as the  owner
of  a pro rata undivided interest in  the interest and principal portions of the
Trust Fund represented by the Certificates and will be considered the  equitable
owner  of a  pro rata undivided  interest in each  of the Mortgage  Loans in the
Pool. Any amounts received  by a Certificateholder in  lieu of amounts due  with
respect  to any Mortgage  Loans because of  a default or  delinquency in payment
will be treated for federal income tax purposes as having the same character  as
the payments they replace.
 
     Each Certificateholder will be required to report on its federal income tax
return  in accordance with such Certificateholder's method of accounting its pro
rata share  of the  entire income  from the  Mortgage Loans  in the  Trust  Fund
represented   by  Certificates,  including  interest,  original  issue  discount
('OID'), if any, prepayment fees, assumption  fees, any gain recognized upon  an
assumption  and late payment charges received by the Master Servicer. Under Code
Sections 162 or 212  each Certificateholder will be  entitled to deduct its  pro
rata  share  of  servicing  fees, prepayment  fees,  assumption  fees,  any loss
recognized upon an assumption  and late payment charges  retained by the  Master
Servicer,  provided that such  amounts are reasonable  compensation for services
rendered to the Trust Fund. Certificateholders that are individuals, estates  or
trusts  will be entitled  to deduct their  share of expenses  only to the extent
such expenses plus such taxpayer's  other miscellaneous itemized deductions  (as
defined  in  the  Code) exceed  two  percent  of its  adjusted  gross  income. A
Certificateholder using the cash method of accounting must take into account its
pro rata share of income and deductions as and when collected by or paid to  the
Master  Servicer. A Certificateholder using an accrual method of accounting must
take into account its pro rata share of income and deductions as they become due
(or received if received prior to when  due) or are paid (or accrued if  accrued
prior  to payment)  to the Master  Servicer. If  the servicing fees  paid to the
Master Servicer  are deemed  to exceed  reasonable servicing  compensation,  the
amount  of such excess could be considered  as an ownership interest retained by
the Master Servicer  (or any  person to whom  the Master  Servicer assigned  for
value all or a portion of the
 
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servicing fees) in a portion of the interest payments on the Mortgage Loans. The
Mortgage Loans would then be subject to the 'coupon stripping' rules of the Code
discussed below.
 
   
     Unless otherwise specified in the related Prospectus Supplement, as to each
Series of Certificates Brown & Wood LLP will have advised the Depositor that:
    
 
          (i)  a Certificate owned by a 'domestic building and loan association'
     within the meaning of Code  Section 7701(a)(19) representing principal  and
     interest  payments on Mortgage Loans will be considered to represent 'loans
     . . . secured by  an interest in real property  which is . . .  residential
     property'  within  the meaning  of Code  Section 7701(a)(19)(C)(v),  to the
     extent that the  Mortgage Loans represented  by that Certificate  are of  a
     type described in such Code section;
 
          (ii)  a Certificate owned by a financial institution described in Code
     Section 593(a)  representing principal  and interest  payments on  Mortgage
     Loans  will  be considered  to represent  'qualifying real  property loans'
     within the  meaning of  Code Section  593(d) and  the Treasury  regulations
     under  Code Section 593, to the  extent that the Mortgage Loans represented
     by that Certificate are of a type described in such Code section;
 
          (iii)  a  Certificate  owned  by   a  real  estate  investment   trust
     representing  an interest in Mortgage Loans will be considered to represent
     'real estate assets' within the  meaning of Code Section 856(c)(5)(A),  and
     interest  income  on the  Mortgage Loans  will  be considered  'interest on
     obligations secured by mortgages  on real property'  within the meaning  of
     Code   Section  856(c)(3)(B),  to  the   extent  that  the  Mortgage  Loans
     represented by  that Certificate  are  of a  type  described in  such  Code
     section; and
 
          (iv)  a Certificate owned by a REMIC will represent an 'obligation . .
     . which is principally secured, directly  or indirectly, by an interest  in
     real property' within the meaning of Code Section 860G(a)(3).
 
     Buydown  Loans.   The assets constituting  certain Trust  Funds may include
Buydown Loans.  The characterization  of any  investment in  Buydown Loans  will
depend  upon the  precise terms  of the  related buydown  agreement, but  to the
extent that such Buydown Loans  are secured in part by  a bank account or  other
personal property, they may not be treated in their entirety as assets described
in  the  foregoing  sections  of  the Code.  There  are  no  directly applicable
precedents  with  respect   to  the   federal  income  tax   treatment  or   the
characterization of investments in Buydown Loans. Accordingly,
Certificateholders  should consult  their own tax  advisors with  respect to the
characterization of investments  in Certificates representing  an interest in  a
Trust Fund that includes Buydown Loans.
 
     Premium.  The price paid for a Certificate by a holder will be allocated to
such  holder's undivided interest  in each Mortgage Loan  based on each Mortgage
Loan's relative fair market value, so  that such holder's undivided interest  in
each  Mortgage  Loan  will have  its  own  tax basis.  A  Certificateholder that
acquires an  interest in  Mortgage Loans  at  a premium  may elect,  under  Code
Section 171, to amortize such premium under a constant interest method, provided
that  the underlying  mortgage loans  with respect  to such  Mortgage Loans were
originated after  September  27,  1985.  Premium  allocable  to  mortgage  loans
originated  on  or  before September  27,  1985  should be  allocated  among the
principal payments on such mortgage loans  and allowed as an ordinary  deduction
as  principal payments are made. Amortizable bond  premium will be treated as an
offset to interest income  on such Certificate. The  basis for such  Certificate
will  be reduced  to the  extent that amortizable  premium is  applied to offset
interest payments. It is  not clear whether  a reasonable prepayment  assumption
should be used in computing amortization of premium allowable under Code Section
171.
 
     If  a premium is not subject  to amortization using a reasonable prepayment
assumption, the holder of a Certificate acquired at a premium should recognize a
loss if  a Mortgage  Loan (or  an underlying  mortgage loan  with respect  to  a
Mortgage  Loan) prepays in full, equal to  the difference between the portion of
the prepaid principal amount of such Mortgage Loan (or underlying mortgage loan)
that is allocable to the  Certificate and the portion  of the adjusted basis  of
the  Certificate that is allocable to such Mortgage Loan (or underlying mortgage
loan). If a reasonable prepayment assumption  is used to amortize such  premium,
it  appears that such a loss would be  available, if at all, only if prepayments
have occurred at a rate faster  than the reasonable assumed prepayment rate.  It
is not clear whether any other
 
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adjustments  would  be  required  to  reflect  differences  between  an  assumed
prepayment rate and the actual rate of prepayments.
 
   
     On June 27, 1996 the Internal  Revenue Service (the 'IRS') issued  proposed
regulations   (the   'Amortizable  Bond   Premium  Regulations')   dealing  with
amortizable bond  premium.  These  regulations  specifically  do  not  apply  to
prepayable  debt instruments subject to  Code Section 1272(a)(6). Absent further
guidance from  the IRS,  the Trustee  intends to  account for  amortizable  bond
premium   in  the  manner   described  above.  Prospective   purchasers  of  the
Certificates  should  consult   their  tax  advisors   regarding  the   possible
application of the Amortizable Bond Premium Regulations.
    
 
     Original  Issue Discount.   The  Internal Revenue  Service (the  'IRS') has
stated in published rulings  that, in circumstances  similar to those  described
herein,  the special  rules of  the Code  relating to  'original issue discount'
(currently Code Sections  1271 through 1273  and 1275) will  be applicable to  a
Certificateholder's  interest  in those  Mortgage  Loans meeting  the conditions
necessary for  these  sections to  apply.  OID  generally must  be  reported  as
ordinary  gross  income as  it  accrues under  a  constant interest  method. See
' -- Multiple Classes of Certificates -- Certificates Representing Interests  in
Loans Other Than ARM Loans' below.
 
     Market  Discount.  A Certificateholder  that acquires an undivided interest
in Mortgage Loans may be subject to  the market discount rules of Code  Sections
1276  through 1278  to the extent  an undivided  interest in a  Mortgage Loan is
considered to have been purchased at a 'market discount.' Generally, the  amount
of market discount is equal to the excess of the portion of the principal amount
of  such Mortgage Loan  allocable to such holder's  undivided interest over such
holder's tax  basis  in  such  interest.  Market  discount  with  respect  to  a
Certificate  will  be considered  to  be zero  if  the amount  allocable  to the
Certificate is less than 0.25% of  the Certificate's stated redemption price  at
maturity multiplied by the weighted average maturity remaining after the date of
purchase.  Treasury regulations implementing the  market discount rules have not
yet been  issued; therefore,  investors should  consult their  own tax  advisors
regarding  the application of these rules and  the advisability of making any of
the elections allowed under Code Sections 1276 through 1278.
 
     The Code provides that any  principal payment (whether a scheduled  payment
or  a prepayment) or any gain on  disposition of a market discount bond acquired
by the taxpayer after October 22, 1986,  shall be treated as ordinary income  to
the  extent that it does  not exceed the accrued market  discount at the time of
such payment. The amount of accrued market discount for purposes of  determining
the tax treatment of subsequent principal payments or dispositions of the market
discount bond is to be reduced by the amount so treated as ordinary income.
 
     The Code also grants the Treasury Department authority to issue regulations
providing  for the computation  of accrued market  discount on debt instruments,
the principal of  which is payable  in more than  one installment. Although  the
Treasury  Department  has not  yet issued  regulations,  rules described  in the
relevant legislative history describes how market discount should be accrued  on
such  instruments. According to such legislative history, the holder of a market
discount bond may  elect to  accrue market  discount either  on the  basis of  a
constant  interest  rate or  according to  one  of the  following methods.  If a
Certificate is  issued with  OID, the  amount of  market discount  that  accrues
during  any  accrual period  would  be equal  to the  product  of (i)  the total
remaining market discount and (ii) a fraction, the numerator of which is the OID
accruing during the period and the  denominator of which is the total  remaining
OID at the beginning of the accrual period. For Certificates issued without OID,
the  amount of  market discount  that accrues  during a  period is  equal to the
product of (i)  the total  remaining market discount  and (ii)  a fraction,  the
numerator  of which  is the  amount of stated  interest paid  during the accrual
period and  the denominator  of which  is the  total amount  of stated  interest
remaining  to be paid  at the beginning  of the accrual  period. For purposes of
calculating market  discount under  any of  the  above methods  in the  case  of
instruments  that  provide for  payments that  may be  accelerated by  reason of
prepayments of  other  obligations  (which  technically  does  not  include  the
Certificates)   securing  such  instruments,   the  same  prepayment  assumption
applicable to calculating the accrual of OID will apply. Because the regulations
described above have not  been issued, it is  impossible to predict what  effect
those  regulations might have on the tax treatment of a Certificate purchased at
a discount or premium in the secondary market.
 
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     A holder  who acquired  a Certificate  at  a market  discount also  may  be
required  to defer, until the  maturity date of such  Certificate or its earlier
disposition in a taxable transaction, the  deduction of a portion of the  amount
of  interest  that  the  holder  paid or  accrued  during  the  taxable  year on
indebtedness incurred or  maintained to  purchase or carry  such Certificate  in
excess  of the aggregate  amount of interest (including  OID) includible in such
holder's gross income for the taxable year with respect to such Certificate. The
amount of such net interest  expense deferred in a  taxable year may not  exceed
the amount of market discount accrued on the Certificate for the days during the
taxable  year on which the holder held the Certificate and, in general, would be
deductible when such market discount is includible in income. The amount of  any
remaining  deferred deduction is to be taken into account in the taxable year in
which the Certificate matures or is disposed of in a taxable transaction. In the
case of a disposition  in which gain or  loss is not recognized  in whole or  in
part,  any remaining deferred  deduction will be  allowed to the  extent of gain
recognized on  the  disposition.  This  deferral rule  does  not  apply  if  the
Certificateholder  elects to include such market discount in income currently as
it accrues on all market discount obligations acquired by such Certificateholder
in that taxable year or thereafter.
 
   
     Election to  Treat  All Interest  as  OID.  The OID  Regulations  permit  a
Certificateholder  to  elect  to  accrue all  interest,  discount  (including de
minimis market or original  issue discount) and premium  in income as  interest,
based  on a constant yield method for Certificates acquired on or after April 4,
1994. If such an  election were to  be made with respect  to a Certificate  with
market  discount, the Certificateholder would be deemed to have made an election
to include in income  currently market discount with  respect to all other  debt
instruments  having market discount that  such Certificateholder acquires during
the year  of the  election or  thereafter. Similarly,  a Certificateholder  that
makes  this election  for a Certificate  that is  acquired at a  premium will be
deemed to have made  an election to  amortize bond premium  with respect to  all
debt  instruments having  amortizable bond  premium that  such Certificateholder
owns or acquires. See ' -- Single Class of Certificates -- Premium' herein.  The
election  to accrue  interest, discount and  premium on a  constant yield method
with respect to a Certificate cannot be revoked without the consent of the IRS.
    
 
B. MULTIPLE CLASSES OF CERTIFICATES
 
     1. Stripped Bonds and Stripped Coupons
 
     Pursuant to Code Section 1286, the separation of ownership of the right  to
receive  some or all of the interest payments on an obligation from ownership of
the right  to receive  some or  all of  the principal  payments results  in  the
creation  of 'stripped bonds'  with respect to  principal payments and 'stripped
coupons' with respect to interest payments.  For purposes of Code Sections  1271
through  1288, Code Section 1286 treats a  stripped bond or a stripped coupon as
an obligation issued on the  date that such stripped  interest is created. If  a
Trust   Fund  is  created  with  two  classes  of  Certificates,  one  class  of
Certificates may represent  the right  to principal and  interest, or  principal
only,   on  all  or  a  portion  of  the  Mortgage  Loans  (the  'Stripped  Bond
Certificates'), while the second class  of Certificates may represent the  right
to  some  or  all  of  the  interest  on  such  portion  (the  'Stripped  Coupon
Certificates').
 
     Servicing fees in excess of reasonable servicing fees ('excess  servicing')
will  be treated under the  stripped bond rules. If  the excess servicing fee is
less than 100  basis points (i.e.,  1% interest on  the Mortgage Loan  principal
balance)  or  the Certificates  are initially  sold with  a de  minimis discount
(which amount may  be calculated  without a prepayment  assumption), any  non-de
minimis  discount arising from a subsequent  transfer of the Certificates should
be treated  as market  discount.  The IRS  appears  to require  that  reasonable
servicing  fees be calculated on  a Mortgage Loan by  Mortgage Loan basis, which
could result in some Mortgage Loans being treated as having more than 100  basis
points  of interest stripped off. See ' -- Non-REMIC Certificates' and 'Multiple
Classes of Senior Certificates -- Stripped Bonds and Stripped Coupons' herein.
 
     Although not entirely clear, a  Stripped Bond Certificate generally  should
be  treated as an interest in Mortgage  Loans issued on the day such Certificate
is purchased for purposes of calculating any OID. Generally, if the discount  on
a  Mortgage Loan is larger than a  de minimis amount (as calculated for purposes
of the OID rules) a purchaser of  such a Certificate will be required to  accrue
the  discount under the OID rules of  the Code. See ' -- Non-REMIC Certificates'
and '  -- Single  Class  of Certificates  --  Original Issue  Discount'  herein.
However, a purchaser of a Stripped Bond Certificate will
 
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be required to account for any discount on the Mortgage Loans as market discount
rather  than OID if  either (i) the amount  of OID with  respect to the Mortgage
Loan is treated as zero under the  OID de minimis rule when the Certificate  was
stripped  or  (ii)  no more  than  100  basis points  (including  any  amount of
servicing fees in excess  of reasonable servicing fees)  is stripped off of  the
Trust Fund's Mortgage Loans.
 
     The  precise tax treatment of Stripped Coupon Certificates is substantially
uncertain. The Code could be read literally to require that OID computations  be
made  for each payment from each Mortgage Loan. However, based on the recent IRS
guidance, it  appears  that all  payments  from  a Mortgage  Loan  underlying  a
Stripped Coupon Certificate should be treated as a single installment obligation
subject  to the  OID rules of  the Code, in  which case, all  payments from such
Mortgage Loan would be included in  the Mortgage Loan's stated redemption  price
at maturity for purposes of calculating income on such certificate under the OID
rules of the Code.
 
     It  is unclear under what circumstances, if any, the prepayment of Mortgage
Loans will give  rise to a  loss to the  holder of a  Stripped Bond  Certificate
purchased  at a premium or a Stripped Coupon Certificate. If such Certificate is
treated as a  single instrument (rather  than an interest  in discrete  mortgage
loans)  and the effect of  prepayments is taken into  account in computing yield
with respect to such Certificate, it appears that no loss will be available as a
result of any particular  prepayment unless prepayments occur  at a rate  faster
than  the assumed prepayment rate. However, if such Certificate is treated as an
interest in discrete  Mortgage Loans, or  if no prepayment  assumption is  used,
then  when a Mortgage Loan is prepaid,  the holder of such Certificate should be
able to recognize a loss equal to the portion of the unrecovered premium of such
Certificate that is allocable to such Mortgage Loan.
 
     Holders of Stripped Bond Certificates and Stripped Coupon Certificates  are
urged  to consult with their own tax  advisors regarding the proper treatment of
these Certificates for federal income tax purposes.
 
     2. Certificates Representing Interests in Loans Other Than ARM Loans
 
     The original issue discount rules of  Code Sections 1271 through 1275  will
be  applicable to a  Certificateholder's interest in those  Mortgage Loans as to
which the  conditions for  the  application of  those  sections are  met.  Rules
regarding periodic inclusion of original issue discount in income are applicable
to  mortgages  of  corporations  originated after  May  27,  1969,  mortgages of
noncorporate mortgagors (other than individuals) originated after July 1,  1982,
and  mortgages  of individuals  originated after  March 2,  1984. Under  the OID
Regulations, such original issue discount could arise by the charging of  points
by  the originator of  the mortgage in  an amount greater  than the statutory de
minimis exception, including a payment of points that is currently deductible by
the borrower under applicable Code  provisions, or under certain  circumstances,
by the presence of 'teaser' rates (i.e., the initial rates on the Mortgage Loans
are lower than subsequent rates on the Mortgage Loans) on the Mortgage Loans.
 
     OID on each Certificate must be included in the owner's ordinary income for
federal  income  tax  purposes as  it  accrues,  in accordance  with  a constant
interest method that takes into account the compounding of interest, in  advance
of  receipt of the cash attributable to  such income. The amount of OID required
to be  included in  an owner's  income in  any taxable  year with  respect to  a
Certificate representing an interest in Mortgage Loans other than Mortgage Loans
with  interest  rates  that adjust  periodically  ('ARM Loans')  likely  will be
computed as described below under ' -- Accrual of Original Issue Discount.'  The
following  discussion is based in part on Treasury regulations issued on January
27, 1994, under Code Sections 1271 through 1273 and 1275 (the 'OID Regulations')
and in part on the  provisions of the Tax Reform  Act of 1986 (the '1986  Act').
The  OID Regulations generally  are effective for debt  instruments issued on or
after April 4, 1994, but  may be relied upon as  authority with respect to  debt
instruments  issued after  December 21,  1992. Alternatively,  proposed Treasury
regulations issued  December 21,  1992  may be  treated  as authority  for  debt
instruments  issued after  December 21,  1992 and  prior to  April 4,  1994, and
proposed Treasury  regulations  issued  in  1986 and  1991  may  be  treated  as
authority  for instruments  issued before December  21, 1992.  In applying these
dates, the issued date of the Mortgage Loans should be used, or, in the case  of
Stripped  Bond  Certificates  or  Stripped Coupon  Certificates,  the  date such
Certificates are acquired. The holder of a
 
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Certificate should be aware, however, that neither the proposed OID  Regulations
nor the OID Regulations adequately address certain issues relevant to prepayable
securities.
 
     Under  the Code,  the Mortgage  Loans underlying  the Certificates  will be
treated as having been issued on the date the were originated with an amount  of
OID  equal to  the excess  of such  Mortgage Loan's  stated redemption  price at
maturity over its issue price. The issue  price of a Mortgage Loan is  generally
the  amount lent to  the mortgagee, which  may be adjusted  to take into account
certain loan origination  fees. The  stated redemption  price at  maturity of  a
Mortgage  Loan is the sum of all payments to be made on such Mortgage Loan other
than payments  that  are treated  as  qualified stated  interest  payments.  The
accrual  of this OID,  as described below  under ' --  Accrual of Original Issue
Discount,'  will,  unless   otherwise  specified  in   the  related   Prospectus
Supplement,   utilize  the  original  yield  to  maturity  of  the  Certificates
calculated based on a reasonable assumed prepayment rate for the mortgage  loans
underlying  the Certificates (the  'Prepayment Assumption'), and  will take into
account  events  that  occur  during  the  calculation  period.  The  Prepayment
Assumption  will be determined in the manner prescribed by regulations that have
not yet been issued. The legislative  history of the 1986 Act (the  'Legislative
History')  provides,  however,  that  the  regulations  will  require  that  the
Prepayment Assumption be the prepayment  assumption that is used in  determining
the  offering  price of  such Certificate.  No representation  is made  that any
Certificate will prepay at the Prepayment  Assumption or at any other rate.  The
prepayment  assumption  contained in  the Code  literally  only applies  to debt
instruments collateralized  by  other  debt  instruments  that  are  subject  to
prepayment rather than direct ownership interests in such debt instruments, such
as  the  Certificates  represent.  However, no  other  legal  authority provides
guidance with regard to the proper  method for accruing OID on obligations  that
are  subject to  prepayment, and, until  further guidance is  issued, the Master
Servicer intends to calculate and report OID under the method described below.
 
     Accrual of Original Issue Discount.  Generally, the owner of a  Certificate
must  include in gross income the sum of the 'daily portions,' as defined below,
of the OID on such Certificate for  each day on which it owns such  Certificate,
including  the date of  purchase but excluding  the date of  disposition. In the
case of  an original  owner, the  daily portions  of OID  with respect  to  each
component generally will be determined as set forth under the OID Regulations. A
calculation  will be made by the Master  Servicer or such other entity specified
in the related Prospectus Supplement of  the portion of OID that accrues  during
each  successive  monthly accrual  period (or  shorter period  from the  date of
original issue) that ends on the day in the calendar year corresponding to  each
of  the Distribution Dates  on the Certificates  (or the day  prior to each such
date). This will  be done, in  the case of  each full month  accrual period,  by
adding  (i) the present  value at the  end of the  accrual period (determined by
using as a  discount factor  the original yield  to maturity  of the  respective
component  under  the Prepayment  Assumption) of  all  remaining payments  to be
received under the Prepayment  Assumption on the  respective component and  (ii)
any  payments received  during such  accrual period,  and subtracting  from that
total the 'adjusted issue price' of the respective component at the beginning of
such accrual period. The adjusted issue price of a Certificate at the  beginning
of  the first accrual period  is its issue price; the  adjusted issue price of a
Certificate at the  beginning of  a subsequent  accrual period  is the  adjusted
issue  price at the  beginning of the immediately  preceding accrual period plus
the amount of OID allocable to that accrual period reduced by the amount of  any
payment  made at  the end  of or  during that  accrual period.  The OID accruing
during such accrual period  will then be  divided by the number  of days in  the
period  to determine the daily  portion of OID for each  day in the period. With
respect to an initial accrual period shorter than a full monthly accrual period,
the daily  portions  of OID  must  be  determined according  to  an  appropriate
allocation under any reasonable method.
 
     Original issue discount generally must be reported as ordinary gross income
as  it accrues  under a  constant interest  method that  takes into  account the
compounding of interest as  it accrues rather than  when received. However,  the
amount  of original issue  discount includible in  the income of  a holder of an
obligation is reduced when the obligation is acquired after its initial issuance
at a price greater than the sum  of the original issue price and the  previously
accrued  original issue discount, less prior payments of principal. Accordingly,
if such Mortgage Loans acquired by a Certificateholder are purchased at a  price
equal  to the then  unpaid principal amount  of such Mortgage  Loan, no original
issue discount attributable to  the difference between the  issue price and  the
original principal amount of
 
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such  Mortgage Loan  (e.g., due  to points) will  be includible  by such holder.
Other original issue discount on the  Mortgage Loans (e.g., that arising from  a
'teaser' rate) would still need to be accrued.
 
     3. Certificates Representing Interests in ARM Loans
 
     The  OID Regulations do  not address the treatment  of instruments, such as
the Certificates, which represent interests in ARM Loans. Additionally, the  IRS
has  not issued guidance under the Code's coupon stripping rules with respect to
such instruments. In  the absence  of any  authority, the  Master Servicer  will
report   OID  on   Certificates  attributable   to  ARM   Loans  ('Stripped  ARM
Obligations') to holders in  a manner it believes  is consistent with the  rules
described  above under the  heading ' --  Certificates Representing Interests in
Loans  Other  Than  ARM  Loans'  and  with  the  OID  Regulations.  In  general,
application  of these rules  may require inclusion  of income on  a Stripped ARM
Obligation in  advance of  the  receipt of  cash  attributable to  such  income.
Further,  the addition of  interest deferred by  reason of negative amortization
('Deferred Interest') to the  principal balance of an  ARM Loan may require  the
inclusion of such amount in the income of the Certificateholder when such amount
accrues.  Furthermore, the  addition of  Deferred Interest  to the Certificate's
principal balance  will  result in  additional  income (including  possibly  OID
income) to the Certificateholder over the remaining life of such Certificates.
 
     Because  the treatment of Stripped  ARM Obligations is uncertain, investors
are urged to consult their tax advisors regarding how income will be  includible
with respect to such Certificates.
 
C. SALE OR EXCHANGE OF A CERTIFICATE
 
     Sale or exchange of a Certificate prior to its maturity will result in gain
or  loss equal to  the difference, if  any, between the  amount received and the
owner's adjusted basis in  the Certificate. Such  adjusted basis generally  will
equal  the seller's  purchase price  for the  Certificate, increased  by the OID
included in  the seller's  gross income  with respect  to the  Certificate,  and
reduced  by principal  payments on  the Certificate  previously received  by the
seller. Such gain or loss will be capital  gain or loss to an owner for which  a
Certificate  is a 'capital asset'  within the meaning of  Code Section 1221, and
will be long-term or  short-term depending on whether  the Certificate has  been
owned  for the  long-term capital gain  holding period (currently  more than one
year).
 
     The Certificates will be 'evidences of indebtedness' within the meaning  of
Code  Section 582(c)(1),  so that  gain or  loss recognized  from the  sale of a
Certificate by a bank or a thrift institution to which such section applies will
be ordinary income or loss.
 
D. NON-U.S. PERSONS
 
     Generally,  to  the  extent  that  a  Certificate  evidences  ownership  in
underlying  Mortgage Loans that were issued on or before July 18, 1984, interest
or OID paid by the  person required to withhold tax  under Code Section 1441  or
1442  to (i) an  owner that is  not a U.S.  Person (as defined  below) or (ii) a
Certificateholder holding on behalf of an owner  that is not a U.S. Person  will
be  subject to federal income tax, collected by withholding, at a rate of 30% or
such lower rate as  may be provided  for interest by  an applicable tax  treaty.
Accrued  OID  recognized  by  the  owner  on the  sale  or  exchange  of  such a
Certificate also  will  be subject  to  federal income  tax  at the  same  rate.
Generally,  such payments would not be subject to withholding to the extent that
a Certificate evidences ownership in Mortgage Loans issued after July 18,  1984,
by   natural   persons   if  such   Certificateholder   complies   with  certain
identification requirements (including  delivery of a  statement, signed by  the
Certificateholder   under   penalties   of   perjury,   certifying   that   such
Certificateholder is not  a U.S. Person  and providing the  name and address  of
such  Certificateholder). Additional restrictions apply  to Mortgage Loans where
the mortgagor is not a natural person in order to qualify for the exemption from
withholding.
 
     As used herein, a 'U.S. Person' means  a citizen or resident of the  United
States,  a corporation or  a partnership organized  in or under  the laws of the
United States or any  political subdivision thereof or  an estate or trust,  the
income  of which from sources  outside the United States  is includible in gross
income for federal  income tax purposes  regardless of its  connection with  the
conduct of a trade or business within the United States.
 
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E. INFORMATION REPORTING AND BACKUP WITHHOLDING
 
     The  Master Servicer  will furnish or  make available,  within a reasonable
time  after  the  end  of  each  calendar  year,  to  each  person  who  was   a
Certificateholder  at  any time  during such  year, such  information as  may be
deemed necessary or  desirable to assist  Certificateholders in preparing  their
federal  income  tax returns,  or  to enable  holders  to make  such information
available to  beneficial  owners  or financial  intermediaries  that  hold  such
Certificates as nominees on behalf of beneficial owners. If a holder, beneficial
owner,  financial intermediary or  other recipient of  a payment on  behalf of a
beneficial owner fails to supply  a certified taxpayer identification number  or
if  the Secretary of the  Treasury determines that such  person has not reported
all interest and dividend income required to be shown on its federal income  tax
return, 31% backup withholding may be required with respect to any payments. Any
amounts  deducted  and withheld  from  a distribution  to  a recipient  would be
allowed as a credit against such recipient's federal income tax liability.
 
REMIC CERTIFICATES
 
   
     The Trust Fund relating to a Series of Certificates may elect to be treated
as a REMIC. Qualification  as a REMIC requires  ongoing compliance with  certain
conditions.  Although a  REMIC is  not generally  subject to  federal income tax
(see, however  ' --  Residual Certificates'  and '  -- Prohibited  Transactions'
below),  if a Trust Fund with respect to which a REMIC election is made fails to
comply with one or more of the ongoing requirements of the Code for REMIC status
during any taxable  year, including  the implementation of  restrictions on  the
purchase  and transfer of the  residual interests in a  REMIC as described below
under 'Residual Certificates,' the Code provides  that a Trust Fund will not  be
treated  as a REMIC for such year and thereafter. In that event, such entity may
be taxable as a separate corporation,  and the related Certificates (the  'REMIC
Certificates')  may  not  be accorded  the  status  or given  the  tax treatment
described below.  While the  Code authorizes  the Treasury  Department to  issue
regulations  providing relief in the event  of an inadvertent termination of the
status of a trust  fund as a  REMIC, no such regulations  have been issued.  Any
such  relief, moreover, may be accompanied  by sanctions, such as the imposition
of a corporate tax on all or a  portion of the REMIC's income for the period  in
which  the requirements for such status are  not satisfied. With respect to each
Trust Fund that elects REMIC status, Brown  & Wood LLP will deliver its  opinion
generally  to the effect  that, under then existing  law and assuming compliance
with all provisions of the related Agreement, such Trust Fund will qualify as  a
REMIC,  and the related Certificates will  be considered to be regular interests
('Regular Certificates') or residual interests ('Residual Certificates') in  the
REMIC.  The related Prospectus  Supplement for each  Series of Certificates will
indicate whether the Trust Fund will make  a REMIC election and whether a  class
of Certificates will be treated as a regular or residual interest in the REMIC.
    
 
     In  general, with respect to each Series  of Certificates for which a REMIC
election is  made, (i)  Certificates held  by a  thrift institution  taxed as  a
'mutual savings bank' or 'domestic building and loan association' will represent
interests in 'qualifying real property loans' within the meaning of Code Section
593(d)(1);  (ii) Certificates held by a  thrift institution taxed as a 'domestic
building and loan association' will constitute assets described in Code  Section
7701(a)(19)(C);  (iii) Certificates held by a  real estate investment trust will
constitute 'real estate assets' within the meaning of Code Section 856(c)(5)(A);
and (iv) interest on Certificates held by a real estate investment trust will be
considered 'interest  on  obligations secured  by  mortgages on  real  property'
within the meaning of Code Section 856(c)(3)(B). If less than 95% of the REMIC's
assets  are  assets qualifying  under any  of the  foregoing Code  sections, the
Certificates will  be qualifying  assets only  to the  extent that  the  REMIC's
assets  are  qualifying assets.  In addition,  payments  on Mortgage  Loans held
pending distribution  on  the  REMIC  Certificates  will  be  considered  to  be
qualifying  real property loans for purposes  of Code Section 593(d)(1) and real
estate assets for purposes of Code Section 856(c).
 
     In some instances the Mortgage Loans may not be treated entirely as  assets
described  in the  foregoing sections.  See, in  this regard,  the discussion of
Buydown Loans  contained in  '  -- Non-REMIC  Certificates  -- Single  Class  of
Certificates'  above. REMIC Certificates held by  a real estate investment trust
will not constitute 'Government Securities'  within the meaning of Code  Section
856(c)(5)(A), and REMIC Certificates held by a regulated investment company will
not constitute 'Government
 
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<PAGE>
Securities'   within  the  meaning  of   Code  Section  851(b)(4)(A)(ii).  REMIC
Certificates held by certain  financial institutions will constitute  'evidences
of indebtedness' within the meaning of Code Section 582(c)(1).
 
     A  'qualified  mortgage' for  REMIC purposes  is any  obligation (including
certificates of participation in such an obligation) that is principally secured
by an interest in real  property and that is transferred  to the REMIC within  a
prescribed  time period  in exchange  for regular  or residual  interests in the
REMIC. The REMIC Regulations provide  that manufactured housing or mobile  homes
(not  including  recreational vehicles,  campers or  similar vehicles)  that are
'single family residences'  under Code  Section 25(e)(10) will  qualify as  real
property  without  regard  to  state  law  classifications.  Under  Code Section
25(e)(10), a single family residence includes  any manufactured home that has  a
minimum  of 400 square feet of living space and a minimum width in excess of 102
inches and that is of a kind customarily used at a fixed location.
 
   
     Tiered REMIC Structures.  For certain Series of Certificates, two  separate
elections  may be made to treat designated portions of the related Trust Fund as
REMICs (respectively, the 'Subsidiary REMIC' and the 'Master REMIC') for federal
income tax purposes. Upon the issuance of any such Series of Certificates, Brown
& Wood LLP, counsel to the Depositor, will deliver its opinion generally to  the
effect  that, assuming compliance with all  provisions of the related Agreement,
the Master REMIC as well as any  Subsidiary REMIC will each qualify as a  REMIC,
and  the REMIC Certificates issued by the Master REMIC and the Subsidiary REMIC,
respectively, will be considered to  evidence ownership of Regular  Certificates
or  Residual Certificates in the  related REMIC within the  meaning of the REMIC
provisions.
    
 
     Only REMIC Certificates, other than the residual interest in the Subsidiary
REMIC, issued by  the Master  REMIC will  be offered  hereunder. The  Subsidiary
REMIC  and the Master REMIC will be treated  as one REMIC solely for purposes of
determining whether the REMIC Certificates will be (i) 'qualifying real property
loans' under Section 593(d)  of the Code; (ii)  'real estate assets' within  the
meaning of Section 856(c)(5)(A) of the Code; (iii) 'loans secured by an interest
in real property' under Section 7701(a)(19)(C) of the Code; and (iv) whether the
income on such Certificates is interest described in Section 856(c)(3)(B) of the
Code.
 
A. REGULAR CERTIFICATES
 
     General.     Except  as  otherwise   stated  in  this  discussion,  Regular
Certificates will be treated for federal income tax purposes as debt instruments
issued by the REMIC and not as  ownership interests in the REMIC or its  assets.
Moreover,  holders of Regular Certificates that  otherwise report income under a
cash method of  accounting will  be required to  report income  with respect  to
Regular Certificates under an accrual method.
 
     Original  Issue  Discount and  Premium.   The  Regular Certificates  may be
issued with original issue discount ('OID').  Generally, such OID, if any,  will
equal  the difference  between the  'stated redemption  price at  maturity' of a
Regular Certificate and its 'issue price.' Holders of any class of  Certificates
issued with OID will be required to include such OID in gross income for federal
income tax purposes as it accrues, in accordance with a constant interest method
based  on the compounding  of interest as  it accrues rather  than in accordance
with receipt of the interest payments. The following discussion is based in part
on Treasury regulations  issued on January  27, 1994, under  Code Sections  1271
through  1273 and 1275 (the 'OID Regulations')  and in part on the provisions of
the Tax Reform Act of 1986 (the  '1986 Act'). The OID Regulations generally  are
effective  for debt  instruments issued  on or after  April 4,  1994. Holders of
Regular  Certificates  (the  'Regular  Certificateholders')  should  be   aware,
however,  that  the OID  Regulations do  not  adequately address  certain issues
relevant to prepayable securities, such as the Regular Certificates.
 
     Rules governing OID are  set forth in Code  Sections 1271 through 1273  and
1275.  These  rules  require that  the  amount and  rate  of accrual  of  OID be
calculated based on the Prepayment  Assumption and the anticipated  reinvestment
rate,  if any, relating to  the Regular Certificates and  prescribe a method for
adjusting the  amount and  rate of  accrual of  such discount  where the  actual
prepayment  rate differs  from the  Prepayment Assumption.  Under the  Code, the
Prepayment  Assumption  must   be  determined  in   the  manner  prescribed   by
regulations,  which  regulations  have  not  yet  been  issued.  The Legislative
 
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<PAGE>
History provides, however,  that Congress  intended the  regulations to  require
that  the Prepayment  Assumption be  the prepayment  assumption that  is used in
determining the  initial  offering  price  of  such  Regular  Certificates.  The
Prospectus  Supplement for each Series of  Regular Certificates will specify the
Prepayment Assumption to be used for  the purpose of determining the amount  and
rate  of accrual of OID. No representation is made that the Regular Certificates
will prepay at the Prepayment Assumption or at any other rate.
 
   
     The IRS recently  issued final regulations  (the 'Contingent  Regulations')
governing  the  calculation of  OID  on instruments  having  contingent interest
payments. The Contingent Regulations specifically  do not apply for purposes  of
calculating  OID on debt instruments subject to Code Section 1272(a)(6), such as
the Regular  Certificates.  Additionally, the  OID  Regulations do  not  contain
provisions  specifically  interpreting  Code  Section  1272(a)(6).  The  Trustee
intends to  base  its  computations  on Code  Section  1272(a)(6)  and  the  OID
Regulations  as  described  herein.  However,  because  no  regulatory  guidance
currently exists under Code Section 1272(a)(6),  there can be no assurance  that
such methodology represents the correct manner of calculating OID.
    
 
     In   general,  each  Regular  Certificate  will  be  treated  as  a  single
installment obligation issued with an amount of  OID equal to the excess of  its
'stated redemption price at maturity' over its 'issue price.' The issue price of
a  Regular  Certificate is  the first  price  at which  a substantial  amount of
Regular Certificates of that class are first sold to the public (excluding  bond
houses,  brokers, underwriters  or wholesalers).  The issue  price of  a Regular
Certificate also includes the  amount paid by  an initial Certificateholder  for
accrued interest that relates to a period prior to the issue date of the Regular
Certificate.  The stated redemption  price at maturity  of a Regular Certificate
includes the original principal amount of the Regular Certificate, but generally
will not  include distributions  of interest  if such  distributions  constitute
'qualified  stated interest.' Qualified stated interest generally means interest
payable at a single fixed rate  or qualified variable rate (as described  below)
provided that such interest payments are unconditionally payable at intervals of
one  year or less during the entire term of the Regular Certificate. Interest is
payable at a single fixed rate only if the rate appropriately takes into account
the length  of  the interval  between  payments. Distributions  of  interest  on
Regular  Certificates with respect  to which Deferred  Interest will accrue will
not constitute qualified  stated interest  payments, and  the stated  redemption
price  at maturity  of such Regular  Certificates includes  all distributions of
interest as well as principal thereon.
 
     Where the interval between the issue  date and the first Distribution  Date
on  a  Regular  Certificate  is  longer  than  the  interval  between subsequent
Distribution Dates, the greater of any original issue discount disregarding  the
rate  in the first period  and any interest foregone  during the first period is
treated as the amount  by which the stated  redemption price of the  Certificate
exceeds its issue price for purposes of the de minimis rule described below. The
OID  Regulations suggest that all  or a portion of the  interest on a long first
period Regular  Certificate that  is  issued with  non-de  minimis OID  will  be
treated  as  OID.  Where the  interval  between  the issue  date  and  the first
Distribution Date on a Regular Certificate is shorter than the interval  between
subsequent  Distribution Dates, interest  due on the  first Distribution Date in
excess of the amount that accrued during the first period would be added to  the
Certificates  stated  redemption price  at maturity.  Regular Certificateholders
should consult their own  tax advisors to determine  the issue price and  stated
redemption  price  at maturity  of a  Regular  Certificate. Additionally,  it is
possible that the IRS could assert that the stated Pass-Through Rate of interest
on the Regular Certificates is not unconditionally payable because late payments
or nonpayments on the Mortgage Loans are not penalized nor are there  reasonable
remedies  in place to compel  payment on such Mortgage  Loans. Such position, if
successful, would require all holders  of Regular Certificates to accrue  income
on such certificates under the OID Regulations.
 
     Under  the de minimis rule, OID on a Regular Certificate will be considered
to be zero  if such OID  is less than  0.25% of the  stated redemption price  at
maturity  of the Regular Certificate multiplied by the weighted average maturity
of the Regular Certificate. For this  purpose, the weighted average maturity  of
the  Regular Certificate  is computed  as the sum  of the  amounts determined by
multiplying the number of  full years (i.e., rounding  down partial years)  from
the  issue date until each distribution  in reduction of stated redemption price
at maturity is scheduled to be made by a fraction, the numerator of which is the
amount of each distribution included in the stated redemption price at  maturity
of the Regular Certificate and the denominator of which is the stated redemption
price at maturity of the
 
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Regular Certificate. Although currently unclear, it appears that the schedule of
such  distributions  should  be  determined in  accordance  with  the Prepayment
Assumption. The  Prepayment  Assumption with  respect  to a  Series  of  Regular
Certificates  will be  set forth in  the related  Prospectus Supplement. Holders
generally must  report  de  minimis  OID pro  rata  as  principal  payments  are
received,  and such income  will be capital  gain if the  Regular Certificate is
held as a capital asset. However, accrual method holders may elect to accrue all
de minimis OID as well as market discount under a constant interest method.
 
   
     The Prospectus Supplement  with respect  to a  Trust Fund  may provide  for
certain  Regular  Certificates to  be issued  at prices  significantly exceeding
their  principal  amounts   or  based  on   notional  principal  balances   (the
'Super-Premium   Certificates').  The  income  tax  treatment  of  such  Regular
Certificates is not  entirely certain. For  information reporting purposes,  the
Trust  Fund intends  to take  the position that  the stated  redemption price at
maturity of such Regular Certificates is the  sum of all payments to be made  on
such  Regular Certificates determined under  the Prepayment Assumption, with the
result that such Regular Certificates would be issued with OID. The  calculation
of income in this manner could result in negative original issue discount (which
delays  future accruals  of OID rather  than being  immediately deductible) when
prepayments on the Mortgage  Loans exceed those  estimated under the  Prepayment
Assumption.  As discussed above, the  Contingent Regulations specifically do not
apply to prepayable debt instruments subject to Code Section 1272(a)(6), such as
the Regular  Certificates.  However,  if  the  Super-Premium  Certificates  were
treated  as contingent payment  obligations, it is unclear  how holders of those
Certificates would report income or recover their basis. In the alternative, the
IRS could assert that  the stated redemption price  at maturity of such  Regular
Certificates  should  be  limited  to their  principal  amount  (subject  to the
discussion below  under  ' --  Accrued  Interest Certificates'),  so  that  such
Regular  Certificates would be considered for  federal income tax purposes to be
issued at a premium.  If such a  position were to  prevail, the rules  described
below  under ' --  Regular Certificates --  Premium' would apply.  It is unclear
when a  loss  may be  claimed  for any  unrecovered  basis for  a  Super-Premium
Certificate.  It is  possible that a  holder of a  Super-Premium Certificate may
only claim a loss when its remaining basis exceeds the maximum amount of  future
payments,  assuming no further prepayments or when the final payment is received
with respect to  such Super-Premium  Certificate. Absent  further guidance,  the
Trustee intends to treat the Super-Premium Certificates as described herein.
    
 
     Under  the REMIC Regulations,  if the issue price  of a Regular Certificate
(other than those based on a notional amount) does not exceed 125% of its actual
principal amount, the interest rate  is not considered disproportionately  high.
Accordingly,  such  Regular Certificate  generally should  not  be treated  as a
Super-Premium Certificate  and the  rules  described below  under '  --  Regular
Certificates -- Premium' should apply. However, it is possible that certificates
issued  at a premium, even if the premium is less than 25% of such Certificate's
actual principal balance,  will be  required to  amortize the  premium under  an
original  issue discount  method or  contingent interest  method even  though no
election under Code section 171 is made to amortize such premium.
 
     Generally, a Regular  Certificateholder must  include in  gross income  the
'daily  portions,' as  determined below,  of the OID  that accrues  on a Regular
Certificate for  each day  a Certificateholder  holds the  Regular  Certificate,
including  the  purchase  date but  excluding  the disposition  date.  The daily
portions of OID are determined  by allocating to each  day in an accrual  period
the  ratable portion of OID allocable to the accrual period. Accrual periods may
be of  any  length  and  may  vary  in length  over  the  term  of  the  Regular
Certificates, provided that each accrual period (i) is not longer than one year,
(ii)  begins or ends on a Distribution Date (except for the first accrual period
which begins on the issue date) and (iii) begins on the day after the  preceding
accrual period ends. This will be done, in the case of each full accrual period,
by (i) adding (a) the present value at the end of the accrual period (determined
by  using as  a discount factor  the original  yield to maturity  of the Regular
Certificates as calculated  under the  Prepayment Assumption)  of all  remaining
payments  to  be  received  on the  Regular  Certificates  under  the Prepayment
Assumption and  (b) any  payments included  in the  stated redemption  price  at
maturity  received during  such accrual period,  and (ii)  subtracting from that
total the adjusted issue price of  the Regular Certificates at the beginning  of
such  accrual period. The adjusted  issue price of a  Regular Certificate at the
beginning of the  first accrual period  is its issue  price; the adjusted  issue
price  of a Regular Certificate at the  beginning of a subsequent accrual period
is the adjusted issue price
 
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at the beginning of the immediately preceding accrual period plus the amount  of
OID  allocable to that accrual  period and reduced by  the amount of any payment
other than a payment of qualified stated  interest made at the end of or  during
that  accrual period.  The OID  accrued during  an accrual  period will  then be
divided by the number of  days in the period to  determine the daily portion  of
OID  for each day in the accrual period. The calculation of OID under the method
described above will  cause the accrual  of OID to  either increase or  decrease
(but  never  below zero)  in a  given accrual  period to  reflect the  fact that
prepayments are occurring faster or slower than under the Prepayment Assumption.
With respect to an  initial accrual period shorter  than a full accrual  period,
the  daily  portions  of  OID  may be  determined  according  to  an appropriate
allocation under any reasonable method.
 
     A subsequent  purchaser  of  a  Regular Certificate  issued  with  OID  who
purchases  the  Regular Certificate  at a  cost less  than the  remaining stated
redemption price at maturity  will also be required  to include in gross  income
the  sum of the daily portions of  OID on that Regular Certificate. In computing
the daily portions of OID for such a purchaser (as well as an initial  purchaser
that purchases at a price higher than the adjusted issue price but less than the
stated  redemption price at maturity), however,  the daily portion is reduced by
the amount that would be the daily portion for such day (computed in  accordance
with the rules set forth above) multiplied by a fraction, the numerator of which
is  the amount, if any, by which the  price paid by such holder for that Regular
Certificate exceeds the following  amount: (a) the sum  of the issue price  plus
the  aggregate amount of OID that would have been includible in the gross income
of an original Regular Certificateholder (who purchased the Regular  Certificate
at  its  issue  price), less  (b)  any  prior payments  included  in  the stated
redemption price at maturity,  and the denominator  of which is  the sum of  the
daily  portions for that Regular Certificate for  all days beginning on the date
after the  purchase date  and ending  on the  maturity date  computed under  the
Prepayment  Assumption. A  holder who  pays an  acquisition premium  instead may
elect to accrue OID by treating the purchase as a purchase at original issue.
 
   
     Variable Rate Regular Certificates.   Regular Certificates may provide  for
interest  based on a variable rate. Interest is treated as payable at a variable
rate and not as contingent interest if, generally, (i) the issue price does  not
exceed  the original principal balance by more  than a specified amount and (ii)
the interest compounds  or is  payable at least  annually at  current values  of
certain  objective rates matured by or based on lending rates for newly borrowed
funds. For a debt instrument issued after August 13, 1996, an objective rate  is
a  rate (other than a qualified floating rate) that is determined using a single
fixed formula and that is based on objective financial or economic  information.
The  variable interest generally will be qualified stated interest to the extent
it is unconditionally payable  at least annually and,  to the extent  successive
variable rates are used, interest is not significantly accelerated or deferred.
    
 
     The  amount of OID with respect to a Regular Certificate bearing a variable
rate of interest will accrue in the  manner described above under ' --  Original
Issue  Discount and Premium' by  assuming generally that the  index used for the
variable rate  will  remain  fixed  throughout  the  term  of  the  Certificate.
Appropriate adjustments are made for the actual variable rate.
 
     Although  unclear  at  present,  the  Depositor  intends  to  treat Regular
Certificates bearing an  interest rate  that is a  weighted average  of the  net
interest  rates on Mortgage  Loans as variable rate  certificates. In such case,
the weighted average rate used to  compute the initial pass-through rate on  the
Regular  Certificates will be deemed to be  the index in effect through the life
of the Regular  Certificates. It is  possible, however, that  the IRS may  treat
some or all of the interest on Regular Certificates with a weighted average rate
as  taxable under  the rules  relating to  obligations providing  for contingent
payments. Such  treatment may  effect  the timing  of  income accruals  on  such
Regular  Certificates. Additionally,  if some or  all of the  Mortgage Loans are
subject to 'teaser  rates' (i.e., the  initial rates on  the Mortgage Loans  are
less  than subsequent rates on the Mortgage  Loans) the interest paid on some or
all of the Regular Certificates may be subject to accrual using a constant yield
method notwithstanding the fact that such Certificates may not have been  issued
with 'true' non-de minimis original issue discount.
 
     Election  to  Treat  All Interest  as  OID.  The OID  Regulations  permit a
Certificateholder to  elect  to  accrue all  interest,  discount  (including  de
minimus  market or original  issue discount) and premium  in income as interest,
based on a constant yield method for Certificates acquired on or after April  4,
1994.
 
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If  such an election were to be made  with respect to a Regular Certificate with
market discount, the Certificateholder would be deemed to have made an  election
to  include in income currently  market discount with respect  to all other debt
instruments having market discount  that such Certificateholder acquires  during
the  year of  the election  or thereafter.  Similarly, a  Certificateholder that
makes this election  for a Certificate  that is  acquired at a  premium will  be
deemed  to have made  an election to  amortize bond premium  with respect to all
debt instruments  having amortizable  bond premium  that such  Certificateholder
owns or acquires. See ' -- Regular Certificates -- Premium' herein. The election
to accrue interest, discount and premium on a constant yield method with respect
to a Certificate cannot be revoked without the consent of the IRS.
 
     Market  Discount.  A purchaser of a Regular Certificate may also be subject
to the market  discount provisions  of Code  Sections 1276  through 1278.  Under
these  provisions and the OID Regulations,  'market discount' equals the excess,
if any, of (i) the Regular Certificate's stated principal amount or, in the case
of a Regular Certificate with OID, the adjusted issue price (determined for this
purpose as  if the  purchaser had  purchased such  Regular Certificate  from  an
original  holder) over (ii) the  price for such Regular  Certificate paid by the
purchaser. A Certificateholder that purchases a Regular Certificate at a  market
discount  will recognize income  upon receipt of  each distribution representing
stated redemption price. In  particular, under Section 1276  of the Code such  a
holder  generally will be required to  allocate each such principal distribution
first to  accrued market  discount not  previously included  in income,  and  to
recognize  ordinary  income to  that extent.  A  Certificateholder may  elect to
include market discount in income currently as it accrues rather than  including
it  on a deferred basis in accordance with the foregoing. If made, such election
will apply to all market discount bonds acquired by such Certificateholder on or
after the first day of the first taxable year to which such election applies.
 
     Market discount with respect to a Regular Certificate will be considered to
be zero if the amount allocable to the Regular Certificate is less than 0.25% of
such Regular Certificate's  stated redemption  price at  maturity multiplied  by
such Regular Certificate's weighted average maturity remaining after the date of
purchase.  If market discount on a Regular  Certificate is considered to be zero
under this rule, the actual amount of  market discount must be allocated to  the
remaining  principal payments on the Regular Certificate, and gain equal to such
allocated amount will be recognized when the corresponding principal payment  is
made.  Treasury regulations implementing the market  discount rules have not yet
been  issued;  therefore,  investors  should  consult  their  own  tax  advisors
regarding  the application of these rules and  the advisability of making any of
the elections allowed under Code Sections 1276 through 1278.
 
     The Code provides that any  principal payment (whether a scheduled  payment
or  a prepayment) or any gain on  disposition of a market discount bond acquired
by the taxpayer after October 22, 1986,  shall be treated as ordinary income  to
the  extent that it does  not exceed the accrued market  discount at the time of
such payment. The amount of accrued market discount for purposes of  determining
the tax treatment of subsequent principal payments or dispositions of the market
discount bond is to be reduced by the amount so treated as ordinary income.
 
     The  Code  also  grants  authority  to  the  Treasury  Department  to issue
regulations providing for  the computation  of accrued market  discount on  debt
instruments,  the principal  of which is  payable in more  than one installment.
Until such time as  regulations are issued by  the Treasury, rules described  in
the  Legislative History will apply.  Under those rules, the  holder of a market
discount bond may  elect to  accrue market  discount either  on the  basis of  a
constant interest rate or according to one of the following methods. For Regular
Certificates  issued with OID, the amount of market discount that accrues during
a period is equal to the product of (i) the total remaining market discount  and
(ii)  a fraction, the numerator  of which is the  OID accruing during the period
and the denominator of which is the total remaining OID at the beginning of  the
period.  For  Regular  Certificates issued  without  OID, the  amount  of market
discount that accrues during a period is  equal to the product of (a) the  total
remaining  market discount  and (b)  a fraction, the  numerator of  which is the
amount of stated interest paid during the accrual period and the denominator  of
which  is  the total  amount  of stated  interest remaining  to  be paid  at the
beginning of the period. For purposes  of calculating market discount under  any
of  the  above  methods  in  the  case  of  instruments  (such  as  the  Regular
Certificates) that provide  for payments that  may be accelerated  by reason  of
prepayments  of other obligations securing such instruments, the same Prepayment
Assumption applicable to calculating the accrual of OID will apply.
 
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     A holder of a Regular Certificate that acquires such Regular Certificate at
a market discount also may be required to defer, until the maturity date of such
Regular Certificate or  its earlier  disposition in a  taxable transaction,  the
deduction of a portion of the amount of interest that the holder paid or accrued
during  the taxable year  on indebtedness incurred or  maintained to purchase or
carry the Regular  Certificate in  excess of  the aggregate  amount of  interest
(including  OID) includible in  such holder's gross income  for the taxable year
with respect  to such  Regular  Certificate. The  amount  of such  net  interest
expense  deferred in a taxable year may not exceed the amount of market discount
accrued on the Regular Certificate for the days during the taxable year on which
the holder held  the Regular Certificate  and, in general,  would be  deductible
when  such market discount is includible in  income. The amount of any remaining
deferred deduction is to be taken into account in the taxable year in which  the
Regular  Certificate matures or is disposed of  in a taxable transaction. In the
case of a disposition  in which gain or  loss is not recognized  in whole or  in
part,  any remaining deferred  deduction will be  allowed to the  extent of gain
recognized on the disposition. This deferral rule does not apply if the  Regular
Certificateholder  elects to include such market discount in income currently as
it  accrues  on  all  market  discount  obligations  acquired  by  such  Regular
Certificateholder in that taxable year or thereafter.
 
   
     Premium.   A purchaser of a  Regular Certificate that purchases the Regular
Certificate at a cost (not including accrued qualified stated interest)  greater
than  its remaining  stated redemption price  at maturity will  be considered to
have purchased the Regular  Certificate at a premium  and may elect to  amortize
such  premium  under  a constant  yield  method.  It is  not  clear  whether the
Prepayment Assumption would be taken into account in determining the life of the
Regular Certificate for this purpose.  The Amortizable Bond Premium  Regulations
described above specifically do not apply to prepayable debt instruments subject
to  Code Section  1272(a)(6) such  as the  Regular Certificates.  Absent further
guidance from  the IRS,  the Trustee  intends to  account for  amortizable  bond
premium  in the manner described herein. However, the Legislative History states
that the  same rules  that apply  to  accrual of  market discount  (which  rules
require  use of a Prepayment Assumption in accruing market discount with respect
to Regular Certificates without  regard to whether  such Certificates have  OID)
will  also apply  in amortizing  bond premium under  Code Section  171. The Code
provides that  amortizable bond  premium will  be allocated  among the  interest
payments  on such Regular Certificates and will  be applied as an offset against
such interest payment. Prospective purchasers of the Regular Certificates should
consult their tax advisors regarding the possible application of the Amortizable
Bond Premium Regulations.
    
 
     Deferred Interest.   Certain classes of  Regular Certificates will  provide
for  the accrual of Deferred Interest with respect to one or more ARM Loans. Any
Deferred Interest that accrues with respect  to a class of Regular  Certificates
will  constitute income to  the holders of  such Certificates prior  to the time
distributions of cash  with respect to  such Deferred Interest  are made. It  is
unclear,  under  the  OID  Regulations,  whether any  of  the  interest  on such
Certificates will  constitute qualified  stated  interest or  whether all  or  a
portion  of the interest  payable on such  Certificates must be  included in the
stated redemption price at maturity of the Certificates and accounted for as OID
(which could accelerate such inclusion).  Interest on Regular Certificates  must
in  any event be  accounted for under an  accrual method by  the holders of such
Certificates and, therefore, applying the latter  analysis may result only in  a
slight  difference in the timing of the  inclusion in income of interest on such
Regular Certificates.
 
     Effects of Defaults and Delinquencies.  Certain Series of Certificates  may
contain one or more classes of Subordinated Certificates, and in the event there
are  defaults  or  delinquencies  on  the  Mortgage  Loans,  amounts  that would
otherwise be  distributed  on  the  Subordinated  Certificates  may  instead  be
distributed  on the  Certificates. Subordinated  Certificateholders nevertheless
will be required  to report income  with respect to  such Certificates under  an
accrual  method without giving effect to  delays and reductions in distributions
on such Subordinated Certificates attributable to defaults and delinquencies  on
the  Mortgage Loans, except to  the extent that it  can be established that such
amounts are  uncollectible. As  a result,  the amount  of income  reported by  a
Subordinated  Certificateholder  in any  period  could significantly  exceed the
amount of  cash distributed  to such  holder  in that  period. The  holder  will
eventually  be allowed a loss  (or will be allowed to  report a lesser amount of
income) to  the  extent  that  the aggregate  amount  of  distributions  on  the
Subordinated Certificate is reduced as a result of defaults and delinquencies on
the   Mortgage  Loans.  However,   the  timing  and   characterization  of  such
 
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losses or reductions  in income  are uncertain,  and, accordingly,  Subordinated
Certificateholders should consult their own tax advisors on this point.
 
     Sale,  Exchange or Redemption. If a Regular Certificate is sold, exchanged,
redeemed or  retired,  the seller  will  recognize gain  or  loss equal  to  the
difference  between the  amount realized on  the sale,  exchange, redemption, or
retirement and  the seller's  adjusted basis  in the  Regular Certificate.  Such
adjusted  basis generally will equal the cost  of the Regular Certificate to the
seller, increased by any OID and market discount included in the seller's  gross
income with respect to the Regular Certificate, and reduced (but not below zero)
by  payments  included in  the stated  redemption  price at  maturity previously
received by the  seller and by  any amortized premium.  Similarly, a holder  who
receives  a payment that is part of the stated redemption price at maturity of a
Regular Certificate will  recognize gain  equal to the  excess, if  any, of  the
amount  of  the  payment  over  the  holder's  adjusted  basis  in  the  Regular
Certificate. A Regular Certificateholder  who receives a  final payment that  is
less  than the holder's adjusted basis in the Regular Certificate will generally
recognize a loss. Except as provided in the following paragraph and as  provided
under  'Market Discount' above,  any such gain  or loss will  be capital gain or
loss, provided  that  the Regular  Certificate  is  held as  a  'capital  asset'
(generally,  property held  for investment) within  the meaning  of Code Section
1221.
 
     Gain from the sale or other disposition of a Regular Certificate that might
otherwise be capital gain will be treated as ordinary income to the extent  that
such  gain does not exceed the excess, if any, of (i) the amount that would have
been includible in such holder's income with respect to the Regular  Certificate
had income accrued thereon at a rate equal to 110% of the AFR as defined in Code
Section  1274(d)  determined  as  of  the  date  of  purchase  of  such  Regular
Certificate, over (ii) the amount actually includible in such holder's income.
 
     The Regular Certificates  will be  'evidences of  indebtedness' within  the
meaning of Code Section 582(c)(1), so that gain or loss recognized from the sale
of a Regular Certificate by a bank or a thrift institution to which such section
applies will be ordinary income or loss.
 
     The Regular Certificate information reports will include a statement of the
adjusted issue price of the Regular Certificate at the beginning of each accrual
period.  In addition, the reports will  include information necessary to compute
the accrual of  any market  discount that may  arise upon  secondary trading  of
Regular  Certificates.  Because  exact  computation  of  the  accrual  of market
discount on a constant  yield method would require  information relating to  the
holder's  purchase  price which  the REMIC  may  not have,  it appears  that the
information reports will only require information pertaining to the  appropriate
proportionate method of accruing market discount.
 
     Accrued  Interest  Certificates.    Certain  of  the  Regular  Certificates
('Payment Lag Certificates')  may provide for  payments of interest  based on  a
period that corresponds to the interval between Distribution Dates but that ends
prior  to each such Distribution  Date. The period between  the Closing Date for
Payment Lag Certificates and their first Distribution Date may or may not exceed
such interval.  Purchasers of  Payment  Lag Certificates  for which  the  period
between  the Closing Date and  the first Distribution Date  does not exceed such
interval could pay upon purchase of the Regular Certificates accrued interest in
excess of the accrued interest  that would be paid if  the interest paid on  the
Distribution  Date were interest accrued  from Distribution Date to Distribution
Date. If a portion  of the initial  purchase price of  a Regular Certificate  is
allocable  to interest that  has accrued prior to  the issue date ('pre-issuance
accrued interest') and the Regular Certificate provides for a payment of  stated
interest  on the first  payment date (and  the first payment  date is within one
year of the issue date)  that equals or exceeds  the amount of the  pre-issuance
accrued  interest, then the Regular Certificates' issue price may be computed by
subtracting from the issue  price the amount  of pre-issuance accrued  interest,
rather  than as  an amount  payable on the  Regular Certificate.  However, it is
unclear under this method how the OID Regulations treat interest on Payment  Lag
Certificates.  Therefore, in  the case of  a Payment Lag  Certificate, the Trust
Fund intends to include accrued interest in the issue price and report  interest
payments  made on  the first  Distribution Date as  interest to  the extent such
payments represent interest for  the number of  days that the  Certificateholder
has held such Payment Lag Certificate during the first accrual period.
 
     Investors  should consult their  own tax advisors  concerning the treatment
for federal income tax purposes of Payment Lag Certificates.
 
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     Non-Interest  Expenses  of  the  REMIC.    Under  the  temporary   Treasury
regulations,  if the REMIC is considered to be a 'single-class REMIC,' a portion
of the REMIC's servicing, administrative and other non-interest expenses will be
allocated as  a  separate item  to  those Regular  Certificateholders  that  are
'pass-through   interest  holders.'  Certificateholders  that  are  pass-through
interest holders should consult their own tax advisors about the impact of these
rules on  an  investment  in  the Regular  Certificates.  See  'Pass-Through  of
Non-Interest Expenses of the REMIC' under 'Residual Certificates' below.
 
     Treatment  of Realized Losses. Although not entirely clear, it appears that
holders of  Regular Certificates  that  are corporations  should in  general  be
allowed to deduct as an ordinary loss any loss sustained during the taxable year
on  account of any such Certificates becoming wholly or partially worthless, and
that, in general, holders  of Certificates that are  not corporations should  be
allowed  to deduct as  a short-term capital  loss any loss  sustained during the
taxable year  on account  of any  such Certificates  becoming wholly  worthless.
Although  the matter  is unclear, non-corporate  holders of  Certificates may be
allowed a bad debt deduction at such time that the principal balance of any such
Certificate is reduced to reflect realized losses resulting from any  liquidated
Mortgage  Loans. The Internal Revenue Service,  however, could take the position
that non-corporate  holders will  be allowed  a bad  debt deduction  to  reflect
realized  losses only  after all Mortgage  Loans remaining in  the related Trust
Fund have been liquidated  or the Certificates of  the related Series have  been
otherwise retired. Potential investors and Holders of the Certificates are urged
to  consult their own tax advisors  regarding the appropriate timing, amount and
character of any loss sustained with respect to such Certificates, including any
loss resulting  from  the failure  to  recover previously  accrued  interest  or
discount  income.  Special  loss  rules  are  applicable  to  banks  and  thrift
institutions, including rules regarding reserves  for bad debts. Such  taxpayers
are  advised to consult their tax advisors  regarding the treatment of losses on
Certificates.
 
     Non-U.S. Persons.  Generally, payments  of interest (including any  payment
with  respect  to  accrued  OID)  on  the  Regular  Certificates  to  a  Regular
Certificateholder who is  not a U.S.  Person and is  not engaged in  a trade  or
business within the United States will not be subject to federal withholding tax
if   such  Regular   Certificateholder  complies   with  certain  identification
requirements  (including  delivery  of  a  statement,  signed  by  the   Regular
Certificateholder  under  penalties  of perjury,  certifying  that  such Regular
Certificateholder is a foreign person and providing the name and address of such
Regular Certificateholder). If  a Regular Certificateholder  is not exempt  from
withholding,  distributions of  interest, including distributions  in respect of
accrued OID, such holder  may be subject  to a 30%  withholding tax, subject  to
reduction under any applicable tax treaty.
 
     Further, it appears that a Regular Certificate would not be included in the
estate  of a non-resident  alien individual and  would not be  subject to United
States estate  taxes. However,  Certificateholders  who are  non-resident  alien
individuals should consult their tax advisors concerning this question.
 
     Regular  Certificateholders who are not U.S. Persons and persons related to
such holders  should  not acquire  any  Residual Certificates,  and  holders  of
Residual  Certificates (the 'Residual Certificateholder') and persons related to
Residual Certificateholders should not acquire any Regular Certificates  without
consulting  their tax  advisors as to  the possible adverse  tax consequences of
doing so.
 
     Information Reporting and  Backup Withholding.   The  Master Servicer  will
furnish  or  make available,  within a  reasonable  time after  the end  of each
calendar year, to each  person who was a  Regular Certificateholder at any  time
during  such year, such information  as may be deemed  necessary or desirable to
assist Regular Certificateholders in preparing their federal income tax returns,
or to enable holders to make such information available to beneficial owners  or
financial  intermediaries  that  hold  such Regular  Certificates  on  behalf of
beneficial owners.  If a  holder, beneficial  owner, financial  intermediary  or
other  recipient of a payment on behalf of  a beneficial owner fails to supply a
certified taxpayer identification  number or  if the Secretary  of the  Treasury
determines  that such person  has not reported all  interest and dividend income
required to be shown  on its federal income  tax return, 31% backup  withholding
may  be required with respect to any payments. Any amounts deducted and withheld
from a distribution to  a recipient would  be allowed as  a credit against  such
recipient's federal income tax liability.
 
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B. RESIDUAL CERTIFICATES
 
     Allocation  of the Income of  the REMIC to the  Residual Certificates.  The
REMIC will not be subject  to federal income tax  except with respect to  income
from prohibited transactions and certain other transactions. See ' -- Prohibited
Transactions and Other Taxes' below. Instead, each original holder of a Residual
Certificate  will report on  its federal income tax  return, as ordinary income,
its share of the  taxable income of  the REMIC for each  day during the  taxable
year  on which such holder owns any Residual Certificates. The taxable income of
the REMIC for each day  will be determined by  allocating the taxable income  of
the  REMIC for each calendar quarter ratably to  each day in the quarter. Such a
holder's share of the taxable income of the REMIC for each day will be based  on
the  portion of the  outstanding Residual Certificates that  such holder owns on
that day. The taxable income  of the REMIC will  be determined under an  accrual
method  and  will be  taxable to  the holders  of Residual  Certificates without
regard to the  timing or amounts  of cash distributions  by the REMIC.  Ordinary
income  derived  from  Residual  Certificates  will  be  'portfolio  income' for
purposes of  the  taxation  of  taxpayers subject  to  the  limitations  on  the
deductibility   of  'passive  losses.'  As   residual  interests,  the  Residual
Certificates will be  subject to tax  rules, described below,  that differ  from
those  that would  apply if the  Residual Certificates were  treated for federal
income tax purposes as direct ownership interests in the Certificates or as debt
instruments issued by the REMIC.
 
     A Residual Certificateholder may be required to include taxable income from
the Residual  Certificate in  excess of  the cash  distributed. For  example,  a
structure  where principal distributions are  made serially on regular interests
(that is, a  fast-pay, slow-pay structure)  may generate such  a mismatching  of
income  and cash distributions (that is, 'phantom income'). This mismatching may
be caused by the use  of certain required tax  accounting methods by the  REMIC,
variations  in the prepayment rate of  the underlying Mortgage Loans and certain
other factors. Depending  upon the  structure of a  particular transaction,  the
aforementioned  factors  may  significantly  reduce  the  after-tax  yield  of a
Residual Certificate to a  Residual Certificateholder. Investors should  consult
their own tax advisors concerning the federal income tax treatment of a Residual
Certificate  and the impact  of such tax  treatment on the  after-tax yield of a
Residual Certificate.
 
     A subsequent Residual  Certificateholder also  will report  on its  federal
income  tax return amounts representing  a daily share of  the taxable income of
the REMIC for each day that  such Residual Certificateholder owns such  Residual
Certificate.  Those daily amounts  generally would equal  the amounts that would
have been reported for the same days by an original Residual  Certificateholder,
as  described above. The Legislative  History indicates that certain adjustments
may be appropriate to reduce (or increase) the income of a subsequent holder  of
a  Residual  Certificate that  purchased such  Residual  Certificate at  a price
greater than (or less than) the  adjusted basis such Residual Certificate  would
have  in the hands of  an original Residual Certificateholder.  See ' -- Sale or
Exchange of Residual Certificates' below. It is not clear, however, whether such
adjustments will in fact be permitted or required and, if so, how they would  be
made. The REMIC Regulations do not provide for any such adjustments.
 
     Taxable  Income  of  the REMIC  Attributable  to Residual  Interests.   The
taxable income of the REMIC  will reflect a netting of  (i) the income from  the
Mortgage  Loans and the REMIC's other assets  and (ii) the deductions allowed to
the REMIC  for interest  and OID  on  the Regular  Certificates and,  except  as
described  above under ' -- Regular Certificates -- Non-Interest Expenses of the
REMIC,' other expenses. REMIC taxable income is generally determined in the same
manner as  the taxable  income of  an  individual using  the accrual  method  of
accounting,  except  that (i)  the  limitations on  deductibility  of investment
interest expense and expenses  for the production of  income do not apply,  (ii)
all bad loans will be deductible as business bad debts, and (iii) the limitation
on  the deductibility of  interest and expenses related  to tax-exempt income is
more restrictive  than with  respect  to individual.  The REMIC's  gross  income
includes  interest, original issue discount  income, and market discount income,
if any,  on  the  Mortgage Loans,  as  well  as, income  earned  from  temporary
investments on reverse assets, reduced by the amortization of any premium on the
Mortgage  Loans.  In  addition,  a  Residual  Certificateholder  will  recognize
additional income  due to  the  allocation of  realized  losses to  the  Regular
Certificates  due to defaults, delinquencies and realized losses on the Mortgage
Loans. The timing of the inclusion of such income by Residual Certificateholders
may  differ  from  the  time  the  actual  loss  is  allocated  to  the  Regular
Certificates. The REMIC's deductions include interest and
 
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original  issue discount expense on the  Regular Certificates, servicing fees on
the Mortgage  Loans, other  administrative expenses  of the  REMIC and  realized
losses  on the Mortgage Loans.  The requirement that Residual Certificateholders
report their pro  rata share of  taxable income or  net loss of  the REMIC  will
continue  until there  are no  Certificates of any  class of  the related Series
outstanding.
 
     For purposes of  determining its  taxable income,  the REMIC  will have  an
initial  aggregate tax basis in its assets equal  to the sum of the issue prices
of the Regular  Certificates and the  Residual Certificates (or,  if a class  of
Certificates is not sold initially, its fair market value). Such aggregate basis
will  be allocated  among the Mortgage  Loans and  other assets of  the REMIC in
proportion to their respective fair market value. A Mortgage Loan will be deemed
to have been acquired with  discount or premium to  the extent that the  REMIC's
basis  therein is less than or greater than its principal balance, respectively.
Any such discount  (whether market discount  or OID) will  be includible in  the
income  of  the  REMIC  as  it  accrues,  in  advance  of  receipt  of  the cash
attributable to such  income, under  a method  similar to  the method  described
above  for accruing OID on the Regular  Certificates. The REMIC expects to elect
under Code Section 171 to amortize any premium on the Mortgage Loans. Premium on
any Mortgage Loan  to which  such election applies  would be  amortized under  a
constant  yield method.  It is not  clear whether  the yield of  a Mortgage Loan
would be  calculated for  this purpose  based on  scheduled payments  or  taking
account  of the Prepayment Assumption. Additionally,  such an election would not
apply to the yield with respect to any underlying mortgage loan originated on or
before September 27, 1985. Instead, premium with respect to such a mortgage loan
would be allocated among the principal payments thereon and would be  deductible
by the REMIC as those payments become due.
 
     The  REMIC will be allowed a deduction  for interest and OID on the Regular
Certificates. The amount  and method of  accrual of OID  will be calculated  for
this  purpose in  the same  manner as  described above  with respect  to Regular
Certificates except that the 0.25% per annum de minimis rule and adjustments for
subsequent holders described therein will not apply.
 
     A Residual Certificateholder will not be permitted to amortize the cost  of
the  Residual  Certificate as  an offset  to  its share  of the  REMIC's taxable
income. However, that taxable income will not include cash received by the REMIC
that represents a recovery of the REMIC's basis in its assets, and, as described
above, the issue price of the Residual  Certificates will be added to the  issue
price  of the Regular  Certificates in determining the  REMIC's initial basis in
its assets. See '  -- Sale or  Exchange of Residual  Certificates' below. For  a
discussion  of  possible  adjustments to  income  of  a subsequent  holder  of a
Residual Certificate to reflect any difference  between the actual cost of  such
Residual  Certificate  to  such  holder and  the  adjusted  basis  such Residual
Certificate would have in the  hands of an original Residual  Certificateholder,
see  ' -- Allocation  of the Income  of the REMIC  to the Residual Certificates'
above.
 
     Net Losses of the REMIC.  The REMIC  will have a net loss for any  calendar
quarter  in which its deductions exceed its gross income. Such net loss would be
allocated among  the  Residual Certificateholders  in  the same  manner  as  the
REMIC's  taxable income. The net loss allocable to any Residual Certificate will
not be deductible by the  holder to the extent that  such net loss exceeds  such
holder's  adjusted basis in such Residual Certificate.  Any net loss that is not
currently deductible  by reason  of this  limitation may  only be  used by  such
Residual  Certificateholder to offset its share of the REMIC's taxable income in
future periods (but not otherwise).  The ability of Residual  Certificateholders
that  are individuals or closely  held corporations to deduct  net losses may be
subject to additional limitations under the Code.
 
   
     Mark to Market  Rules.   Prospective purchasers of  a Residual  Certificate
should  be  aware  that  the IRS  recently  released  proposed  regulations (the
'Proposed Mark-to-Market Regulations') which provide that a Residual Certificate
acquired  after  January  3,  1995  cannot  be  marked-to-market.  The  Proposed
Mark-to-Market  Regulations  change the  temporary  regulations which  allowed a
Residual Certificate to be marked-to-market provided that it was not a 'negative
value' residual  interest.  Prospective  purchasers of  a  Residual  Certificate
should  consult their  tax advisors  regarding the  possible application  of the
Proposed Mark-to-Market Regulations.
    
 
     Pass-Through of Non-Interest Expenses of the REMIC.  As a general rule, all
of the fees and expenses of a REMIC will be taken into account by holders of the
Residual Certificates.  In  the case  of  a  single class  REMIC,  however,  the
expenses    and   a   matching    amount   of   additional    income   will   be
 
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allocated,   under   temporary   Treasury   regulations,   among   the   Regular
Certificateholders  and  the Residual  Certificateholders  on a  daily  basis in
proportion to the relative amounts of income accruing to each  Certificateholder
on that day. In general terms, a single class REMIC is one that either (i) would
qualify,  under existing Treasury regulations, as a grantor trust if it were not
a REMIC (treating all  interests as ownership interests,  even if they would  be
classified as debt for federal income tax purposes) or (ii) is similar to such a
trust  and is structured with the principal purpose of avoiding the single class
REMIC rules. Unless  otherwise stated in  the applicable Prospectus  Supplement,
the  expenses of the REMIC will be  allocated to holders of the related Residual
Certificates in  their  entirety and  not  to  holders of  the  related  Regular
Certificates.
 
     In  the  case of  individuals  (or trusts,  estates  or other  persons that
compute their income in the same manner as individuals) who own an interest in a
Regular Certificate or a Residual Certificate directly or through a pass-through
interest holder  that  is required  to  pass miscellaneous  itemized  deductions
through  to its owners or beneficiaries (e.g. a partnership, an S corporation or
a grantor trust), such expenses will be deductible under Code Section 67 only to
the extent that such expenses, plus other 'miscellaneous itemized deductions' of
the individual,  exceed  2%  of  such individual's  adjusted  gross  income.  In
addition,  Code  Section  68 provides  that  the amount  of  itemized deductions
otherwise allowable  for an  individual whose  adjusted gross  income exceeds  a
certain amount (the 'Applicable Amount') will be reduced by the lesser of (i) 3%
of  the excess  of the  individual's adjusted  gross income  over the Applicable
Amount or (ii) 80% of the amount of itemized deductions otherwise allowable  for
the taxable year. The amount of additional taxable income recognized by Residual
Certificateholders  who are subject to the limitations of either Code Section 67
or  Code  Section  68   may  be  substantial.   Further,  holders  (other   than
corporations)   subject  to   the  alternative   minimum  tax   may  not  deduct
miscellaneous itemized  deductions  in  determining  such  holders'  alternative
minimum  taxable income.  The REMIC is  required to report  to each pass-through
interest holder and to  the IRS such  holder's allocable share,  if any, of  the
REMIC's non-interest expenses. The term 'pass-through interest holder' generally
refers  to individuals, entities  taxed as individuals  and certain pass-through
entities,  but  does  not  include  real  estate  investment  trusts.   Residual
Certificateholders  that are pass-through interest  holders should consult their
own tax  advisors about  the  impact of  these rules  on  an investment  in  the
Residual Certificates.
 
     Excess  Inclusions.   A  portion of  the income  on a  Residual Certificate
(referred to in  the Code  as an 'excess  inclusion') for  any calendar  quarter
will,  with an  exception discussed  below for  certain thrift  institutions, be
subject to  federal income  tax in  all  events. Thus,  for example,  an  excess
inclusion  (i) may not,  except as described  below, be offset  by any unrelated
losses, deductions or loss carryovers of a Residual Certificateholder; (ii) will
be treated as  'unrelated business taxable  income' within the  meaning of  Code
Section  512 if the  Residual Certificateholder is  a pension fund  or any other
organization that  is subject  to tax  only on  its unrelated  business  taxable
income (see ' -- Tax-Exempt Investors' below); and (iii) is not eligible for any
reduction   in  the  rate  of  withholding  tax   in  the  case  of  a  Residual
Certificateholder that is a foreign investor. See ' -- Non-U.S. Persons'  below.
The  exception  for thrift  institutions is  available  only to  the institution
holding the Residual Certificate  and not to any  affiliate of the  institution,
unless  the affiliate is a subsidiary all  the stock of which, and substantially
all the  indebtedness  of  which, is  held  by  the institution,  and  which  is
organized  and  operated exclusively  in  connection with  the  organization and
operation of one or more REMICs.
 
     Except as  discussed  in  the  following paragraph,  with  respect  to  any
Residual  Certificateholder, the excess  inclusions for any  calendar quarter is
the excess, if  any, of (i)  the income of  such Residual Certificateholder  for
that  calendar quarter from  its Residual Certificate  over (ii) the  sum of the
'daily accruals' (as defined below) for all days during the calendar quarter  on
which  the Residual Certificateholder holds  such Residual Certificate. For this
purpose,  the  daily  accruals  with  respect  to  a  Residual  Certificate  are
determined by allocating to each day in the calendar quarter its ratable portion
of  the product of the 'adjusted issue price' (as defined below) of the Residual
Certificate at the  beginning of  the calendar quarter  and 120  percent of  the
'Federal  long-term  rate' in  effect at  the time  the Residual  Certificate is
issued. For this purpose, the 'adjusted  issue price' of a Residual  Certificate
at  the beginning of any calendar quarter equals the issue price of the Residual
Certificate, increased by the amount of  daily accruals for all prior  quarters,
and  decreased (but not below zero) by  the aggregate amount of payments made on
the  Residual   Certificate  before   the  beginning   of  such   quarter.   The
 
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'federal  long-term rate' is an average of current yields on Treasury securities
with a remaining term of greater than nine years, computed and published monthly
by the IRS.
 
     As  an  exception  to  the  general  rule  described  above,  the  Treasury
Department has authority to issue regulations that would treat the entire amount
of  income  accruing  on a  Residual  Certificate  as excess  inclusions  if the
Residual Certificates in the aggregate  are considered not to have  'significant
value.' Under the REMIC Regulations, Residual Certificateholders that are thrift
institutions  described in  Code Section 593  can offset  excess inclusions with
unrelated  deductions,  losses  and   loss  carryovers  provided  the   Residual
Certificates  have  'significant value.'  For  purposes of  applying  this rule,
thrift  institutions  that  are  members   of  an  affiliated  group  filing   a
consolidated  return, together with  their subsidiaries formed  to issue REMICs,
are treated as  separate corporations. Residual  Certificates have  'significant
value'  if: (i) the Residual Certificates have  an aggregate issue price that is
at least equal to 2% of the  aggregate issue price of all Residual  Certificates
and  Regular Certificates  with respect  to the  REMIC and  (ii) the anticipated
weighted average  life of  the Residual  Certificates  is at  least 20%  of  the
anticipated  weighted  average  life  of  the  REMIC  based  on  the anticipated
principal payments to  be received  with respect thereto  (using the  Prepayment
Assumption  and any required or permitted clean up calls or required liquidation
provided  for  in  the  REMIC's  organizational  documents),  except  that   all
anticipated  distributions are to be used to calculate the weighted average life
of Regular Certificates that are not  entitled to any principal payments or  are
entitled  to a  disproportionately small  principal amount  relative to interest
payments thereon and all anticipated distributions  are to be used to  calculate
the  weighted average  life of the  Residual Certificates.  The principal amount
will be considered disproportionately small if  the issue price of the  Residual
Certificates  exceeds  125%  of  their  initial  principal  amount.  Finally, an
ordering rule under the REMIC Regulations provides that a thrift institution may
only offset  its excess  inclusion income  with deductions  after it  has  first
applied its deductions against income that is not excess inclusion income.
 
     In  the case of any Residual Certificates  held by a real estate investment
trust,  the  aggregate   excess  inclusions  with   respect  to  such   Residual
Certificates,  reduced (but not below zero)  by the real estate investment trust
taxable income (within the meaning of Code Section 857(b)(2), excluding any  net
capital  gain),  will  be allocated  among  the  shareholders of  such  trust in
proportion to the dividends received by  such shareholders from such trust,  and
any amount so allocated will be treated as an excess inclusion with respect to a
Residual  Certificate  as  if  held  directly  by  such  shareholder.  Regulated
investment companies, common trust funds and certain cooperatives are subject to
similar rules.
 
     Payments.  Any distribution  made on a Residual  Certificate to a  Residual
Certificateholder  will be  treated as  a non-taxable  return of  capital to the
extent it does  not exceed  the Residual Certificateholder's  adjusted basis  in
such  Residual Certificate. To  the extent a  distribution exceeds such adjusted
basis, it will be treated as gain from the sale of the Residual Certificate.
 
     Sale or Exchange of  Residual Certificates.  If  a Residual Certificate  is
sold or exchanged, the seller will generally recognize gain or loss equal to the
difference  between the amount realized on the sale or exchange and its adjusted
basis in the Residual  Certificate (except that the  recognition of loss may  be
limited  under the 'wash sale' rules described below). A holder's adjusted basis
in a Residual Certificate generally equals the cost of such Residual Certificate
to such Residual Certificateholder, increased by the taxable income of the REMIC
that was included in the income of such Residual Certificateholder with  respect
to  such Residual  Certificate, and  decreased (but not  below zero)  by the net
losses that have been allowed  as deductions to such Residual  Certificateholder
with  respect to  such Residual  Certificate and  by the  distributions received
thereon by such Residual  Certificateholder. In general, any  such gain or  loss
will  be capital  gain or loss  provided the  Residual Certificate is  held as a
capital  asset.   However,  Residual   Certificates   will  be   'evidences   of
indebtedness' within the meaning of Code Section 582(c)(1), so that gain or loss
recognized  from sale of a Residual Certificate  by a bank or thrift institution
to which such section applies would be ordinary income or loss.
 
     Except as provided in Treasury regulations yet to be issued, if the  seller
of  a Residual Certificate reacquires such Residual Certificate, or acquires any
other Residual Certificate, any  residual interest in  another REMIC or  similar
interest  in  a 'taxable  mortgage pool'  (as defined  in Code  Section 7701(i))
during the period beginning six months before, and ending six months after,  the
date  of such sale, such sale  will be subject to the  'wash sale' rules of Code
Section 1091. In that event, any loss realized by the
 
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Residual Certificateholder on  the sale  will not be  deductible, but,  instead,
will  increase  such Residual  Certificateholder's adjusted  basis in  the newly
acquired asset.
 
PROHIBITED TRANSACTIONS AND OTHER TAXES
 
     The Code imposes a  tax on REMICs  equal to 100 percent  of the net  income
derived  from 'prohibited transactions' (the  'Prohibited Transactions Tax'). In
general, subject to certain specified exceptions, a prohibited transaction means
the disposition of a Mortgage  Loan, the receipt of  income from a source  other
than  a Mortgage  Loan or  certain other  permitted investments,  the receipt of
compensation for services, or  gain from the disposition  of an asset  purchased
with  the  payments  on  the Mortgage  Loans  for  temporary  investment pending
distribution on the Certificates. It is not anticipated that the Trust Fund  for
any  Series of Certificates will engage  in any prohibited transactions in which
it would recognize a material amount of net income.
 
     In addition, certain contributions to a Trust Fund as to which an  election
has  been made to treat such  Trust Fund as a REMIC  made after the day on which
such Trust Fund issues all of its interests could result in the imposition of  a
tax  on the Trust  Fund equal to 100%  of the value  of the contributed property
(the 'Contributions Tax').  No Trust Fund  for any Series  of Certificates  will
accept contributions that would subject it to such tax.
 
     In  addition, a Trust Fund  as to which an election  has been made to treat
such Trust Fund  as a REMIC  may also be  subject to federal  income tax at  the
highest  corporate rate on 'net income from foreclosure property,' determined by
reference to the rules applicable to  real estate investment trusts 'Net  income
from  foreclosure  property' generally  means  income from  foreclosure property
other than qualifying income for a real estate investment trust.
 
     Where any Prohibited Transactions Tax, Contributions Tax, tax on net income
from foreclosure property or state or local income or franchise tax that may  be
imposed  on a  REMIC relating to  any Series  of Certificates arises  out of, or
results from,  (i) a  breach  of the  related  Master Servicer's,  Trustee's  or
Seller's  obligations, as the case may be,  under the related Agreement for such
Series, such tax will be  borne by such Master  Servicer, Trustee or Seller,  as
the  case  may be,  out of  its own  funds  or (ii)  the Seller's  obligation to
repurchase a Mortgage Loan, such tax will  be borne by the Seller. In the  event
that  such Master Servicer, Trustee or Seller, as  the case may be, fails to pay
or is not  required to  pay any such  tax as  provided above, such  tax will  be
payable  out of the Trust Fund for such Series and will result in a reduction in
amounts available to be distributed to the Certificateholders of such Series.
 
LIQUIDATION AND TERMINATION
 
     If the REMIC adopts a plan  of complete liquidation, within the meaning  of
Code  Section 860F(a)(4)(A)(i), which may be  accomplished by designating in the
REMIC's final tax return a date on  which such adoption is deemed to occur,  and
sells  all of its assets  (other than cash) within  a 90-day period beginning on
such date, the  REMIC will not  be subject to  any Prohibited Transactions  Tax,
provided  that the REMIC credits  or distributes in liquidation  all of the sale
proceeds plus  its cash  (other than  the amounts  retained to  meet claims)  to
holders of Regular and Residual Certificates within the 90-day period.
 
     The  REMIC will terminate  shortly following the  retirement of the Regular
Certificates. If a Residual Certificateholder's  adjusted basis in the  Residual
Certificate   exceeds  the   amount  of   cash  distributed   to  such  Residual
Certificateholder in final  liquidation of  its interest, then  it would  appear
that  the Residual Certificateholder  would be entitled  to a loss  equal to the
amount of such excess. It is unclear whether such a loss, if allowed, will be  a
capital loss or an ordinary loss.
 
ADMINISTRATIVE MATTERS
 
     Solely  for the purpose  of the administrative provisions  of the Code, the
REMIC  generally   will  be   treated  as   a  partnership   and  the   Residual
Certificateholders  will be treated as the partners. Certain information will be
furnished quarterly  to  each Residual  Certificateholder  who held  a  Residual
Certificate on any day in the previous calendar quarter.
 
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     Each  Residual Certificateholder is  required to treat  items on its return
consistently with their  treatment on  the REMIC's return,  unless the  Residual
Certificateholder  either  files a  statement  identifying the  inconsistency or
establishes that the inconsistency resulted from incorrect information  received
from  the REMIC.  The IRS may  assert a  deficiency resulting from  a failure to
comply with the  consistency requirement without  instituting an  administrative
proceeding  at the REMIC level.  The REMIC does not intend  to register as a tax
shelter pursuant to  Code Section 6111  because it is  not anticipated that  the
REMIC  will have  a net  loss for  any of  the first  five taxable  years of its
existence. Any person that holds a Residual Certificate as a nominee for another
person may be  required to  furnish the  REMIC, in a  manner to  be provided  in
Treasury  regulations,  with  the name  and  address  of such  person  and other
information.
 
TAX-EXEMPT INVESTORS
 
     Any Residual Certificateholder that is a pension fund or other entity  that
is  subject to federal  income taxation only on  its 'unrelated business taxable
income' within the meaning of  Code Section 512 will be  subject to such tax  on
that  portion of  the distributions received  on a Residual  Certificate that is
considered an  excess  inclusion.  See  ' --  Residual  Certificates  --  Excess
Inclusions' above.
 
NON-U.S. PERSONS
 
     Amounts  paid to Residual Certificateholders who  are not U.S. persons (see
' -- Regular Certificates  --  Non-U.S. Persons' above) are treated as  interest
for  purposes of the 30%  (or lower treaty rate)  United States withholding tax.
Amounts distributed  to  holders  of Residual  Certificates  should  qualify  as
'portfolio  interest,'  subject  to the  conditions  described in  '  -- Regular
Certificates' above, but only to the  extent that the underlying mortgage  loans
were originated after July 18, 1984. Furthermore, the rate of withholding on any
income  on a Residual  Certificate that is  excess inclusion income  will not be
subject to  reduction under  any  applicable tax  treaties.  See '  --  Residual
Certificates -- Excess Inclusions' above. If the portfolio interest exemption is
unavailable,  such amount will be subject  to United States withholding tax when
paid or otherwise distributed (or when the Residual Certificate is disposed  of)
under   rules  similar  to  those  for  withholding  upon  disposition  of  debt
instruments that have  OID. The  Code, however, grants  the Treasury  Department
authority  to  issue  regulations requiring  that  those amounts  be  taken into
account earlier than otherwise provided where necessary to prevent avoidance  of
tax  (for  example,  where the  Residual  Certificates do  not  have significant
value). See  ' --  Residual Certificates  -- Excess  Inclusions' above.  If  the
amounts  paid  to  Residual Certificateholders  that  are not  U.S.  persons are
effectively connected  with their  conduct of  a trade  or business  within  the
United  States,  the 30%  (or  lower treaty  rate)  withholding will  not apply.
Instead, the amounts  paid to  such non-U.S.  Person will  be subject  to U.  S.
federal  income taxation at regular graduated rates. For special restrictions on
the transfer  of Residual  Certificates, see  ' --  Tax-Related Restrictions  on
Transfers of Residual Certificates' below.
 
     Regular  Certificateholders and persons related  to such holders should not
acquire any Residual Certificates,  and Residual Certificateholders and  persons
related   to  Residual   Certificateholders  should  not   acquire  any  Regular
Certificates, without consulting their tax  advisors as to the possible  adverse
tax consequences of such acquisition.
 
TAX-RELATED RESTRICTIONS ON TRANSFERS OF RESIDUAL CERTIFICATES
 
     Disqualified  Organizations.  An  entity may not qualify  as a REMIC unless
there are reasonable arrangements designed to ensure that residual interests  in
such  entity are  not held by  'disqualified organizations'  (as defined below).
Further, a tax is imposed on the transfer of a residual interest in a REMIC to a
'disqualified organization.' The amount of the tax equals the product of (A)  an
amount (as determined under the REMIC Regulations) equal to the present value of
the  total anticipated  'excess inclusions'  with respect  to such  interest for
periods after the transfer and (B) the highest marginal federal income tax  rate
applicable  to corporations.  The tax  is imposed  on the  transferor unless the
transfer is  through an  agent (including  a broker  or other  middleman) for  a
disqualified  organization, in which event the tax  is imposed on the agent. The
person otherwise liable for the tax shall  be relieved of liability for the  tax
if  the transferee furnished to such person  an affidavit that the transferee is
not a
 
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disqualified organization and, at the time of the transfer, such person does not
have actual knowledge that the affidavit is false. A 'disqualified organization'
means (A)  the United  States, any  State, possession  or political  subdivision
thereof, any foreign government, any international organization or any agency or
instrumentality  of  any of  the  foregoing (provided  that  such term  does not
include an instrumentality if all its activities are subject to tax and,  except
for  FHLMC, a  majority of its  board of directors  is not selected  by any such
governmental  agency),  (B)  any  organization  (other  than  certain   farmers'
cooperatives)   generally  exempt   from  federal   income  taxes   unless  such
organization is subject to  the tax on 'unrelated  business taxable income'  and
(C) a rural electric or telephone cooperative.
 
     A  tax is imposed on  a 'pass-through entity' (as  defined below) holding a
residual interest in  a REMIC  if at  any time during  the taxable  year of  the
pass-through  entity  a disqualified  organization is  the  record holder  of an
interest in such entity. The  amount of the tax is  equal to the product of  (A)
the  amount of excess inclusions for the  taxable year allocable to the interest
held by  the disqualified  organization  and (B)  the highest  marginal  federal
income  tax rate applicable  to corporations. The  pass-through entity otherwise
liable for the tax, for any period during which the disqualified organization is
the record holder of an interest in  such entity, will be relieved of  liability
for  the tax if  such record holder  furnishes to such  entity an affidavit that
such record holder is not a disqualified organization and, for such period,  the
pass-through  entity does not have actual knowledge that the affidavit is false.
For this  purpose, a  'pass-through  entity' means  (i) a  regulated  investment
company,  real estate investment trust or common trust fund, (ii) a partnership,
trust or estate  and (iii) certain  cooperatives. Except as  may be provided  in
Treasury  regulations  not  yet issued,  any  person  holding an  interest  in a
pass-through entity  as  a  nominee  for another  will,  with  respect  to  such
interest,  be treated as a pass-through entity. The tax on pass-through entities
is generally effective for periods after March 31, 1988, except that in the case
of regulated investment companies, real  estate investment trusts, common  trust
funds and publicly-traded partnerships the tax shall apply only to taxable years
of  such entities beginning after December 31, 1988. Under proposed legislation,
large partnerships (generally  with 250  or more  partners) will  be taxable  on
excess inclusion income as if all partners were disqualified organizations.
 
     In  order to comply  with these rules,  the Agreement will  provide that no
record or  beneficial  ownership  interest  in a  Residual  Certificate  may  be
purchased,  transferred  or sold,  directly or  indirectly, without  the express
written consent of  the Master  Servicer. The  Master Servicer  will grant  such
consent  to  a proposed  transfer  only if  it  receives the  following:  (i) an
affidavit from  the  proposed  transferee  to  the  effect  that  it  is  not  a
disqualified  organization and  is not acquiring  the Residual  Certificate as a
nominee or agent  for a  disqualified organization and  (ii) a  covenant by  the
proposed  transferee to  the effect  that the  proposed transferee  agrees to be
bound by and to  abide by the transfer  restrictions applicable to the  Residual
Certificate.
 
     Noneconomic  Residual Certificates.   The REMIC  Regulations disregard, for
federal income tax purposes, any transfer of a Noneconomic Residual  Certificate
to  a 'U.S.  Person,' as  defined in the  following section  of this discussion,
unless no significant  purpose of the  transfer is to  enable the transferor  to
impede  the assessment or collection of  tax. A Noneconomic Residual Certificate
is any Residual Certificate  (including a Residual  Certificate with a  positive
value  at issuance)  unless, at  the time of  transfer, taking  into account the
Prepayment Assumption and any required or  permitted clean up calls or  required
liquidation  provided  for  in  the REMIC's  organizational  documents,  (i) the
present value of the expected  future distributions on the Residual  Certificate
at  least equals  the product  of the  present value  of the  anticipated excess
inclusions and the highest corporate income tax  rate in effect for the year  in
which  the transfer occurs  and (ii) the transferor  reasonably expects that the
transferee will receive  distributions from the  REMIC at or  after the time  at
which  taxes accrue on the anticipated excess inclusions in an amount sufficient
to satisfy the accrued taxes. A significant purpose to impede the assessment  or
collection  of tax exists if the transferor, at the time of the transfer, either
knew or should have known  that the transferee would  be unwilling or unable  to
pay  taxes due on its share of the  taxable income of the REMIC. A transferor is
presumed not to have such knowledge if (i) the transferor conducted a reasonable
investigation of  the transferee  and (ii)  the transferee  acknowledges to  the
transferor  that the residual interest may generate tax liabilities in excess of
the cash flow and the  transferee represents that it  intends to pay such  taxes
associated  with the residual  interest as they  become due. If  a transfer of a
Noneconomic  Residual   Certificate  is   disregarded,  the   transferor   would
 
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continue  to  be treated  as the  owner  of the  Residual Certificate  and would
continue to be subject to tax on its allocable portion of the net income of  the
REMIC.
 
     Foreign  Investors.  The  REMIC Regulations provide that  the transfer of a
Residual Certificate that has a 'tax avoidance potential' to a 'foreign  person'
will  be disregarded for federal income tax purposes. This rule appears to apply
to a transferee  who is not  a U.S.  Person unless such  transferee's income  in
respect of the Residual Certificate is effectively connected with the conduct of
a  United States trade or  business. A Residual Certificate  is deemed to have a
tax avoidance  potential  unless,  at  the  time  of  transfer,  the  transferor
reasonably expects that the REMIC will distribute to the transferee amounts that
will  equal at least 30 percent of  each excess inclusion, and that such amounts
will be distributed at or  after the time the  excess inclusion accrues and  not
later  than the end of  the calendar year following the  year of accrual. If the
non-U.S. Person  transfers  the  Residual  Certificate to  a  U.S.  Person,  the
transfer  will be  disregarded, and the  foreign transferor will  continue to be
treated as the owner, if the transfer has the effect of allowing the  transferor
to  avoid  tax  on  accrued  excess  inclusions.  The  provisions  in  the REMIC
Regulations regarding transfers of Residual Certificates that have tax avoidance
potential to foreign  persons are  effective for  all transfers  after June  30,
1992. The Agreement will provide that no record or beneficial ownership interest
in  a  Residual Certificate  may be  transferred, directly  or indirectly,  to a
non-U.S. Person unless such  person provides the Trustee  with a duly  completed
I.R.S. Form 4224 and the Trustee consents to such transfer in writing.
 
     Any  attempted transfer or pledge in violation of the transfer restrictions
shall be absolutely  null and void  and shall  vest no rights  in any  purported
transferee.  Investors in Residual Certificates are advised to consult their own
tax advisors with  respect to  transfers of  the Residual  Certificates and,  in
addition,  pass-through entities are  advised to consult  their own tax advisors
with respect to any tax which may be imposed on a pass-through entity.
 
                            STATE TAX CONSIDERATIONS
 
     In addition to the  federal income tax  consequences described in  'Certain
Federal  Income  Tax Considerations,'  potential  investors should  consider the
state and  local income  tax  consequences of  the acquisition,  ownership,  and
disposition  of  the Certificates.  State and  local income  tax law  may differ
substantially from the corresponding federal  law, and this discussion does  not
purport  to describe any aspect of the income tax laws of any state or locality.
Therefore, potential  investors  should  consult their  own  tax  advisors  with
respect to the various tax consequences of investments in the Certificates.
 
                              ERISA CONSIDERATIONS
 
     The  following describes certain  considerations under ERISA  and the Code,
which apply  only  to  Certificates  of  a Series  that  are  not  divided  into
subclasses.  If Certificates are divided  into subclasses the related Prospectus
Supplement will contain information concerning considerations relating to  ERISA
and the Code that are applicable to such Certificates.
 
     ERISA  imposes requirements on employee benefit plans (and on certain other
retirement plans and arrangements, including individual retirement accounts  and
annuities,  Keogh plans and collective investment funds and separate accounts in
which such plans, accounts or arrangements are invested) (collectively  'Plans')
subject  to ERISA and on persons who are fiduciaries with respect to such Plans.
Generally, ERISA applies to investments made by Plans. Among other things, ERISA
requires that the  assets of Plans  be held in  trust and that  the trustee,  or
other  duly  authorized fiduciary,  have exclusive  authority and  discretion to
manage and control the assets of  such Plans. ERISA also imposes certain  duties
on  persons who are fiduciaries of Plans.  Under ERISA, any person who exercises
any authority or control respecting the management or disposition of the  assets
of  a Plan  is considered  to be a  fiduciary of  such Plan  (subject to certain
exceptions  not  here  relevant).  Certain  employee  benefit  plans,  such   as
governmental  plans (as defined in ERISA Section  3(32)) and, if no election has
been made under Section 410(d)  of the Code, church  plans (as defined in  ERISA
Section  3(33)), are not  subject to ERISA  requirements. Accordingly, assets of
such plans may be  invested in Senior Certificates  without regard to the  ERISA
considerations   described  above  and  below,  subject  to  the  provisions  of
applicable state law. Any such plan which is qualified and exempt from  taxation
under  Code Sections  401(a) and 501(a),  however, is subject  to the prohibited
transaction rules set forth in Code Section 503.
 
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     On November 13,  1986, the United  States Department of  Labor (the  'DOL')
issued  final  regulations concerning  the  definition of  what  constitutes the
assets of a  Plan. (Labor Reg.  Section 2510.3-101) Under  this regulation,  the
underlying assets and properties of corporations, partnerships and certain other
entities  in  which a  Plan makes  an  'equity' investment  could be  deemed for
purposes of ERISA to be assets  of the investing Plan in certain  circumstances.
However, the regulation provides that, generally, the assets of a corporation or
partnership  in which a Plan invests will not be deemed for purposes of ERISA to
be assets of such Plan if the equity interest acquired by the investing Plan  is
a  publicly-offered security. A  publicly-offered security, as  defined in Labor
Reg. Section 2510.3-101, is a security that is widely held, freely  transferable
and registered under the Securities Exchange Act of 1934, as amended.
 
     In  addition to the imposition of general fiduciary standards of investment
prudence and  diversification, ERISA  prohibits a  broad range  of  transactions
involving  Plan  assets  and  persons  ('Parties  in  Interest')  having certain
specified relationships  to a  Plan and  imposes additional  prohibitions  where
Parties  in  Interest are  fiduciaries with  respect to  such Plan.  Because the
Mortgage  Loans  may  be  deemed  Plan  assets  of  each  Plan  that   purchases
Certificates,  an investment in the Certificates by a Plan might be a prohibited
transaction under ERISA Sections 406 and 407 and subject to an excise tax  under
Code Section 4975 unless a statutory or administrative exemption applies.
 
     In  Prohibited  Transaction  Exemption  83-1  ('PTE  83-1'),  which amended
Prohibited Transaction Exemption 81-7, the DOL exempted from ERISA's  prohibited
transaction  rules certain transactions relating to the operation of residential
mortgage pool investment trusts and the purchase, sale and holding of  'mortgage
pool  pass-through certificates' in  the initial issuance  of such certificates.
PTE 83-1  permits,  subject  to  certain  conditions,  transactions  that  might
otherwise  be prohibited between  Plans and Parties in  Interest with respect to
those Plans related to the origination, maintenance and termination of  mortgage
pools consisting of mortgage loans secured by first or second mortgages or deeds
of  trust on single-family residential property, and the acquisition and holding
of certain mortgage pool pass-through  certificates representing an interest  in
such mortgage pools by Plans. If the general conditions (discussed below) of PTE
83-1  are  satisfied,  investments  by a  Plan  in  certificates  that represent
interests in a mortgage pool consisting of mortgage loans representing loans for
single family  homes ('Single  Family  Certificates') will  be exempt  from  the
prohibitions   of  ERISA  Sections   406(a)  and  407   (relating  generally  to
transactions with  Parties in  Interest who  are not  fiduciaries) if  the  Plan
purchases  the Single Family Certificates at no  more than fair market value and
will be  exempt  from the  prohibitions  of  ERISA Sections  406(b)(1)  and  (2)
(relating  generally  to transactions  with  fiduciaries) if,  in  addition, the
purchase is approved by an independent fiduciary, no sales commission is paid to
the pool sponsor, the Plan does not purchase more than twenty-five percent (25%)
of all Single Family Certificates and at least fifty percent (50%) of all Single
Family Certificates are purchased by persons independent of the pool sponsor  or
pool  trustee. PTE 83-1 does not provide an exemption for transactions involving
Subordinated Certificates. Accordingly, unless otherwise provided in the related
Prospectus Supplement, no transfer of a Subordinated Certificate may be made  to
a Plan.
 
     The  discussion in this  and the next succeeding  paragraph applies only to
Single Family Certificates.  The Depositor  believes that, for  purposes of  PTE
83-1,   the  term   'mortgage  pass-through  certificate'   would  include:  (i)
Certificates  issued  in  a  Series  consisting  of  only  a  single  class   of
Certificates;  and (ii) Senior Certificates issued in a Series in which there is
only one class  of Senior Certificates;  provided that the  Certificates in  the
case  of clause  (i), or  the Senior  Certificates in  the case  of clause (ii),
evidence the  beneficial ownership  of  both a  specified percentage  of  future
interest  payments (greater than  zero percent (0%))  and a specified percentage
(greater than zero percent  (0%)) of future principal  payments on the  Mortgage
Loans.  It  is not  clear whether  a  class of  Certificates that  evidences the
beneficial ownership  in  a  Trust  Fund  divided  into  mortgage  loan  groups,
beneficial  ownership of  a specified  percentage of  interest payments  only or
principal payments only, or  a notional amount of  either principal or  interest
payments,  or a class  of Certificates entitled to  receive payments of interest
and principal on  the Mortgage  Loans only after  payments to  other classes  or
after   the  occurrence  of  certain  specified  events  would  be  a  'mortgage
pass-through certificate' for purposes of PTE 83-1.
 
     PTE 83-1 sets forth  three general conditions which  must be satisfied  for
any transaction to be eligible for exemption: (i) the maintenance of a system of
insurance  or  other  protection  for the  pooled  mortgage  loans  and property
securing  such   loans   and   for   indemnifying   certificateholders   against
 
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reductions  in pass-through payments due to  property damage or defaults in loan
payments in an  amount not  less than  the greater of  one percent  (1%) of  the
aggregate  principal  balance  of  all  covered  pooled  mortgage  loans  or the
principal balance  of  the  largest  covered  pooled  mortgage  loan;  (ii)  the
existence  of a pool  trustee who is not  an affiliate of  the pool sponsor; and
(iii) a limitation on the  amount of the payment  retained by the pool  sponsor,
together  with other  funds inuring  to its benefit,  to not  more than adequate
consideration for selling  the mortgage loans  plus reasonable compensation  for
services  provided  by the  pool  sponsor to  the  mortgage pool.  The Depositor
believes that the first  general condition referred to  above will be  satisfied
with  respect to  the Certificates  in a  Series issued  without a subordination
feature, or the Senior Certificates only in a Series issued with a subordination
feature, provided  that the  subordination and  Reserve Fund,  subordination  by
shifting  of interests, the  pool insurance or other  form of credit enhancement
described herein (such  subordination, pool  insurance or other  form of  credit
enhancement being the system of insurance or other protection referred to above)
with  respect to a  Series of Certificates  is maintained in  an amount not less
than the  greater of  one percent  of  the aggregate  principal balance  of  the
Mortgage  Loans  or the  principal  balance of  the  largest Mortgage  Loan. See
'Description of the Certificates'  herein. In the absence  of a ruling that  the
system of insurance or other protection with respect to a Series of Certificates
satisfies  the  first  general condition  referred  to  above, there  can  be no
assurance that these features will be so viewed by the DOL. The Trustee will not
be affiliated with the Depositor.
 
     Each Plan fiduciary who is responsible for making the investment  decisions
whether to purchase or commit to purchase and to hold Single Family Certificates
must  make  its own  determination as  to  whether the  first and  third general
conditions, and  the  specific conditions  described  briefly in  the  preceding
paragraph,  of PTE 83-1  have been satisfied,  or as to  the availability of any
other  prohibited  transaction  exemptions.  Each  Plan  fiduciary  should  also
determine  whether, under the general fiduciary standards of investment prudence
and diversification, an investment  in the Certificates  is appropriate for  the
Plan,  taking into  account the  overall investment policy  of the  Plan and the
composition of the Plan's investment portfolio.
 
     The DOL  has  granted  to certain  underwriters  individual  administrative
exemptions  (the  'Underwriter  Exemptions')  from  certain  of  the  prohibited
transaction rules of ERISA and the related excise tax provisions of Section 4975
of the Code with respect to the initial purchase, the holding and the subsequent
resale by Plans of certificates in  pass-through trusts that consist of  certain
receivables,   loans  and  other  obligations   that  meet  the  conditions  and
requirements of the Underwriter Exemptions.
 
     While each  Underwriter Exemption  is  an individual  exemption  separately
granted  to a  specific underwriter,  the terms  and conditions  which generally
apply to the Underwriter Exemptions are substantially the following:
 
          (1) the  acquisition  of  the  certificates by  a  Plan  is  on  terms
     (including  the price for the certificates)  that are at least as favorable
     to the  Plan as  they  would be  in an  arm's  length transaction  with  an
     unrelated party;
 
          (2)  the rights and interest evidenced by the certificates acquired by
     the Plan are  not subordinated  to the  rights and  interests evidenced  by
     other certificates of the trust fund;
 
          (3)  the certificates required  by the Plan have  received a rating at
     the time  of such  acquisition that  is one  of the  three highest  generic
     rating  categories  from Standard  & Poor's  Ratings  Group, a  division of
     McGraw-Hill, Inc.  ('S&P'), Moody's  Investors Service,  Inc.  ('Moody's'),
     Duff  & Phelps Credit  Rating Co. ('D&P') or  Fitch Investors Service, Inc.
     ('Fitch');
 
          (4) the trustee must not  be an affiliate of  any other member of  the
     Restricted Group;
 
          (5)  the sum of all payments made  to and retained by the underwriters
     in connection with the distribution of the certificates represents not more
     than reasonable compensation for underwriting the certificates; the sum  of
     all  payments made to and retained by the seller pursuant to the assignment
     of the loans to  the trust fund  represents not more  than the fair  market
     value  of such loans; the  sum of all payments made  to and retained by the
     servicer and  any  other  servicer  represents  not  more  than  reasonable
     compensation  for such  person's services  under the  agreement pursuant to
     which the loans are pooled  and reimbursements of such person's  reasonable
     expenses in connection therewith; and
 
                                       84
 
<PAGE>
<PAGE>
          (6) the Plan investing in the certificates is an 'accredited investor'
     as defined in Rule 501(a)(1) of Regulation D of the Securities and Exchange
     Commission under the Securities Act of 1933 as amended.
 
     The trust fund must also meet the following requirements:
 
          (i)  the corpus of the trust fund must consist solely of assets of the
     type that have been included in other investment pools;
 
          (ii) certificates in such other investment pools must have been  rated
     in one of the three highest rating categories of S&P, Moody's, Fitch or D&P
     for at least one year prior to the Plan's acquisition of certificates; and
 
          (iii) certificates evidencing interests in such other investment pools
     must  have been purchased  by investors other  than Plans for  at least one
     year prior to any Plan's acquisition of certificates.
 
     Moreover, the Underwriter Exemptions generally provide relief from  certain
self-dealing/conflict  of interest  prohibited transactions that  may occur when
the Plan fiduciary causes a Plan to acquire certificates in a trust as to  which
the  fiduciary (or its affiliate)  is an obligor on  the receivables held in the
trust provided that, among other requirements: (i) in the case of an acquisition
in connection with the initial issuance of certificates, at least fifty  percent
(50%)  of each class of certificates in which Plans have invested is acquired by
persons independent  of  the  Restricted  Group, (ii)  such  fiduciary  (or  its
affiliate)  is an obligor with respect to five  percent (5%) or less of the fair
market value  of  the obligations  contained  in  the trust;  (iii)  the  Plan's
investment  in certificates  of any  class does  not exceed  twenty-five percent
(25%) of all of the  certificates of that class outstanding  at the time of  the
acquisition;   and  (iv)  immediately  after   the  acquisition,  no  more  than
twenty-five percent (25%) of the assets of  the Plan with respect to which  such
person  is a fiduciary  is invested in certificates  representing an interest in
one or more trusts containing  assets sold or serviced  by the same entity.  The
Underwriter  Exemptions  do not  apply  to Plans  sponsored  by the  Seller, the
related Underwriter, the Trustee, the Master Servicer, any insurer with  respect
to  the Mortgage Loans, any  obligor with respect to  Mortgage Loans included in
the Trust  Fund  constituting more  than  five  percent (5%)  of  the  aggregate
unamortized  principal balance of the assets in the Trust Fund, or any affiliate
of such parties.
 
     The Prospectus Supplement for each Series of Certificates will indicate the
classes of Certificates, if any, offered thereby as to which it is expected that
an Underwriter Exemption will apply.
 
     Any Plan fiduciary which proposes to cause a Plan to purchase  Certificates
should consult with its counsel concerning the impact of ERISA and the Code, the
applicability of PTE 83-1, the availability and applicability of any Underwriter
Exemption  or any other exemptions from the prohibited transaction provisions of
ERISA  and  the  Code   and  the  potential   consequences  in  their   specific
circumstances,  prior to making  such investment. Moreover,  each Plan fiduciary
should determine whether  under the  general fiduciary  standards of  investment
procedure  and diversification an investment  in the Certificates is appropriate
for the Plan, taking into account the overall investment policy of the Plan  and
the composition of the Plan's investment portfolio.
 
                                LEGAL INVESTMENT
 
     The  Prospectus  Supplement for  each Series  of Certificates  will specify
which, if any, of  the classes of Certificates  offered thereby will  constitute
'mortgage  related securities'  for purposes  of SMMEA.  Classes of Certificates
that qualify  as 'mortgage  related securities'  will be  legal investments  for
persons,  trusts, corporations, partnerships,  associations, business trusts and
business entities (including depository  institutions, life insurance  companies
and  pension funds) created pursuant to or existing under the laws of the United
States or of  any state  (including the District  of Columbia  and Puerto  Rico)
whose  authorized investments are subject to state regulation to the same extent
as, under applicable law,  obligations issued by or  guaranteed as to  principal
and  interest by the United States or any such entities. Under SMMEA, if a state
enacts legislation  prior to  October 4,  1991 specifically  limiting the  legal
investment  authority of  any such  entities with  respect to  'mortgage related
securities,' the  Certificates will  constitute legal  investments for  entities
subject  to such legislation only to  the extent provided therein. Approximately
twenty-one states  adopted  such  legislation  prior  to  the  October  4,  1991
deadline.  SMMEA provides, however, that  in no event will  the enactment of any
such legislation affect
 
                                       85
 
<PAGE>
<PAGE>
the validity  of any  contractual  commitment to  purchase,  hold or  invest  in
Certificates,  or require the sale or other disposition of Certificates, so long
as such contractual commitment was made  or such Certificates acquired prior  to
the enactment of such legislation.
 
     SMMEA  also amended  the legal investment  authority of federally-chartered
depository institutions as  follows: federal savings  and loan associations  and
federal  savings banks  may invest  in, sell  or otherwise  deal in Certificates
without limitations as to  the percentage of  their assets represented  thereby,
federal  credit unions may  invest in mortgage  related securities, and national
banks may purchase  Certificates for  their own  account without  regard to  the
limitations generally applicable to investment securities set forth in 12 U.S.C.
24 (Seventh), subject in each case to such regulations as the applicable federal
authority may prescribe. In this connection, federal credit unions should review
the  National Credit Union  Administration ('NCUA') Letter  to Credit Unions No.
96, as modified by Letter to Credit Unions No. 108, which includes guidelines to
assist federal credit unions in making investment decisions for mortgage related
securities, and the  NCUA's regulation 'Investment  and Deposit Activities'  (12
C.F.R.  Part 703), (whether or not the class of Certificates under consideration
for purchase constitutes a 'mortgage related security').
 
     All depository institutions considering  an investment in the  Certificates
(whether  or  not the  class of  certificates  under consideration  for purchase
constitutes a 'mortgage  related security' should  review the Federal  Financial
Institutions  Examination Council's  Supervisory Policy  Statement on Securities
Activities (to the extent adopted  by their respective regulators) (the  'Policy
Statement'),  setting forth,  in relevant  part, certain  securities trading and
sales practices deemed unsuitable for an institution's investment portfolio, and
guidelines for (and restrictions on) investing in mortgage derivative  products,
including   'mortgage  related   securities'  that  are   'high-  risk  mortgage
securities' as  defined  in  the  Policy  Statement.  According  to  the  Policy
Statement,  such  'high-risk  mortgage securities'  include  securities  such as
Certificates not entitled to distributions  allocated to principal or  interest,
or   Subordinated  Certificates.   Under  the   Policy  Statement,   it  is  the
responsibility of each  depository institution to  determine, prior to  purchase
(and  at stated intervals thereafter),  whether a particular mortgage derivative
product is  a  'high-risk  mortgage  security', and  whether  the  purchase  (or
retention) of such a product would be consistent with the Policy Statement.
 
     The  foregoing  does  not  take  into  consideration  the  applicability of
statutes,  rules,  regulations,  orders,  guidelines,  or  agreements  generally
governing  investments made by a particular investor, including, but not limited
to, 'prudent investor'  provisions, percentage-of-assets  limits and  provisions
that  may restrict or  prohibit investment in securities  that are not 'interest
bearing' or 'income paying.'
 
     There may  be  other restrictions  on  the ability  of  certain  investors,
including  depository  institutions,  either  to  purchase  Certificates  or  to
purchase Certificates  representing  more than  a  specified percentage  of  the
investor's  assets.  Investors  should  consult  their  own  legal  advisors  in
determining whether  and  to  what  extent  the  Certificates  constitute  legal
investments for such investors.
 
                             METHOD OF DISTRIBUTION
 
     Certificates  are being  offered hereby in  Series from time  to time (each
Series evidencing a separate Trust Fund) through any of the following methods:
 
          1. By negotiated firm commitment underwriting and public reoffering by
     underwriters;
 
          2. By agency placements through one or more placement agents primarily
     with institutional investors and dealers; and
 
          3.  By  placement  directly   by  the  Depositor  with   institutional
     investors.
 
     A  Prospectus  Supplement  will  be prepared  for  each  Series  which will
describe the method of offering  being used for that  Series and will set  forth
the  identity of  any underwriters  thereof and either  the price  at which such
Series is being offered, the nature and amount of any underwriting discounts  or
additional compensation to such underwriters and the proceeds of the offering to
the  Depositor, or the method by which  the price at which the underwriters will
sell the  Certificates will  be determined.  Each Prospectus  Supplement for  an
underwritten  offering will also contain information regarding the nature of the
underwriters' obligations, any material  relationship between the Depositor  and
any  underwriter and, where appropriate,  information regarding any discounts or
concessions to be allowed or reallowed
 
                                       86
 
<PAGE>
<PAGE>
to dealers  or others  and any  arrangements  to stabilize  the market  for  the
Certificates   so  offered.  In  firm  commitment  underwritten  offerings,  the
underwriters will  be obligated  to purchase  all of  the Certificates  of  such
Series  if any such Certificates are  purchased. Certificates may be acquired by
the underwriters for their own accounts and  may be resold from time to time  in
one  or more transactions, including negotiated  transactions, at a fixed public
offering price or at varying prices determined at the time of sale.
 
     Underwriters and agents may be entitled under agreements entered into  with
the  Depositor  to  indemnification  by  the  Depositor  against  certain  civil
liabilities, including liabilities under the Securities Act of 1933, as amended,
or to contribution with  respect to payments which  such underwriters or  agents
may be required to make in respect thereof.
 
     If  a Series  is offered  other than  through underwriters,  the Prospectus
Supplement relating thereto  will contain  information regarding  the nature  of
such  offering and any agreements  to be entered into  between the Depositor and
purchasers of Certificates of such Series.
 
                                 LEGAL MATTERS
 
   
     The validity  of the  Certificates, including  certain federal  income  tax
consequences  with respect  thereto, will  be passed  upon for  the Depositor by
Brown & Wood LLP, One World Trade Center, New York, New York 10048.
    
 
                             FINANCIAL INFORMATION
 
     A new Trust Fund will be formed with respect to each Series of Certificates
and no Trust Fund will engage in  any business activities or have any assets  or
obligations  prior  to  the  issuance of  the  related  Series  of Certificates.
Accordingly, no financial  statements with  respect to  any Trust  Fund will  be
included in this Prospectus or in the related Prospectus Supplement.
 
                                     RATING
 
     It  is  a condition  to the  issuance  of the  Certificates of  each Series
offered hereby and by the Prospectus Supplement that they shall have been  rated
in  one  of the  four  highest rating  categories  by the  nationally recognized
statistical rating  agency  or  agencies specified  in  the  related  Prospectus
Supplement.
 
     Ratings  on mortgage  pass-through certificates  address the  likelihood of
receipt by certificateholders  of all distributions  on the underlying  mortgage
loans.  These ratings address  the structural, legal  and issuer-related aspects
associated with such certificates, the  nature of the underlying mortgage  loans
and  the credit quality of the credit  enhancer or guarantor, if any. Ratings on
mortgage pass-through  certificates  do  not represent  any  assessment  of  the
likelihood of principal prepayments by mortgagors or of the degree by which such
prepayments  might  differ  from  those  originally  anticipated.  As  a result,
certificateholders  might  suffer  a  lower  than  anticipated  yield,  and,  in
addition,  holders of stripped pass-through  certificates in extreme cases might
fail to recoup their underlying investments.
 
     A security rating is not a  recommendation to buy, sell or hold  securities
and may be subject to revision or withdrawal at any time by the assigning rating
organization.  Each  security rating  should be  evaluated independently  of any
other security rating.
 
                                       87

<PAGE>
<PAGE>
                             INDEX TO DEFINED TERMS
 
<TABLE>
<CAPTION>
                                                                                                              PAGE
                                                                                                              ----
   
<S>                                                                                                           <C>
1986 Act...................................................................................................    67
Accretion Directed Certificates............................................................................    28
Accrual Certificates.......................................................................................    25
Accrual Class..............................................................................................    30
accrual period.............................................................................................    69
adjusted issue price.......................................................................................    64
Advance....................................................................................................    10
Agency Securities..........................................................................................     3
Agreement..................................................................................................     3
Applicable Amount..........................................................................................    77
ARM Loans..................................................................................................    63
Available Funds............................................................................................    25
balloon payments...........................................................................................     4
Bankruptcy Bonds...........................................................................................    10
beneficial owner...........................................................................................    34
Book-Entry Certificates....................................................................................    33
Buydown Fund...............................................................................................    13
Buydown Loans..............................................................................................    13
Calculation Agent..........................................................................................    30
CERCLA.....................................................................................................    56
Certificate Account........................................................................................    42
Certificate Balance........................................................................................     8
Certificate Register.......................................................................................    24
Certificateholders.........................................................................................    12
Certificates...............................................................................................     3
Class Certificate Balance..................................................................................    25
Closing Date...............................................................................................     3
Code.......................................................................................................    11
COFI.......................................................................................................    31
COFI Certificates..........................................................................................    32
Collateral Value...........................................................................................    14
Component Certificates.....................................................................................    28
Components.................................................................................................    28
Contributions Tax..........................................................................................    79
Cooperative Loans..........................................................................................     3
Cooperatives...............................................................................................     3
Cut-Off Date...............................................................................................     9
D&P........................................................................................................    84
Deferred Interest..........................................................................................    65
Definitive Certificates....................................................................................    33
Depositor..................................................................................................     3
Depository.................................................................................................    33
Detailed Description.......................................................................................    12
Distribution Date..........................................................................................     8
DOL........................................................................................................    83
Eleventh District..........................................................................................    31
EPA........................................................................................................    56
ERISA......................................................................................................    11
excess servicing...........................................................................................    62
FHA........................................................................................................     4
FHA Insurance..............................................................................................    10
FHA Loans..................................................................................................    15
FHLBSF.....................................................................................................    31
FHLMC......................................................................................................     3
FHLMC Act..................................................................................................    16
FHLMC Certificate group....................................................................................    16
FHLMC Certificates.........................................................................................     5
Financial Intermediary.....................................................................................    33
Fitch......................................................................................................    84
Fixed Rate Class...........................................................................................    29
Floating Rate Class........................................................................................    29
FNMA.......................................................................................................     3
</TABLE>
    
 
                                       88
 
<PAGE>
<PAGE>
 
   
<TABLE>
<CAPTION>
                                                                                                              PAGE
                                                                                                              ----
<S>                                                                                                           <C>
FNMA Certificates..........................................................................................     5
Garn-St Germain Act........................................................................................    57
GNMA.......................................................................................................     3
GNMA Certificates..........................................................................................     5
GNMA I Certificate.........................................................................................    15
GNMA II Certificate........................................................................................    15
GNMA Issuer................................................................................................    15
Guaranty Agreement.........................................................................................    15
Guaranteed Mortgage Pass-Through Certificates..............................................................     5
Housing Act................................................................................................    15
HUD........................................................................................................    47
Insurance Proceeds.........................................................................................    43
Insured Expenses...........................................................................................    43
Interest Only Class........................................................................................    30
Inverse Floating Rate Class................................................................................    29
IRS........................................................................................................    61
Issuer.....................................................................................................
Legislative History........................................................................................    64
LIBOR......................................................................................................    30
LIBOR Determination Date...................................................................................    30
Liquidated Mortgage........................................................................................    49
Liquidation Expenses.......................................................................................    43
Liquidation Proceeds.......................................................................................    43
Loan-to-Value Ratio........................................................................................    14
lockout periods............................................................................................     5
Master REMIC...............................................................................................    67
Master Servicer............................................................................................     3
Master Servicing Fee.......................................................................................    49
Moody's....................................................................................................
Mortgage...................................................................................................    41
Mortgage Assets............................................................................................     3
Mortgage Loans.............................................................................................     3
Mortgage Note..............................................................................................     4
Mortgage Pool..............................................................................................    12
Mortgage Pool Insurance Policy.............................................................................     9
Mortgage Rate..............................................................................................     4
Mortgaged Property.........................................................................................     3
Mortgagor..................................................................................................    13
National Cost of Funds Index...............................................................................    32
NCUA.......................................................................................................    86
Notional Amount Certificates...............................................................................    28
OID........................................................................................................    67
OID Regulations............................................................................................    67
OTS........................................................................................................    32
Partial Accrual Class......................................................................................    30
Parties in Interest........................................................................................    83
pass-through entity........................................................................................    81
pass-through interest holder...............................................................................    74
Pass-Through Rate..........................................................................................     8
Payment Lag Certificates...................................................................................    73
Percentage Interest........................................................................................    25
Permitted Investments......................................................................................    38
Plans......................................................................................................    82
PMBS Agreement.............................................................................................    19
PMBS Issuer................................................................................................     6
PMBS Servicer..............................................................................................     7
PMBS Trustee...............................................................................................     7
Policy Statement...........................................................................................    86
Pool Insurer...............................................................................................    35
pre-issuance accrued interest..............................................................................    73
Prepayment Assumption......................................................................................    64
Primary Insurer............................................................................................    46
Primary Mortgage Insurance Policy..........................................................................    12
</TABLE>
    
 
                                       89
 
<PAGE>
<PAGE>
 
   
<TABLE>
<CAPTION>
                                                                                                              PAGE
                                                                                                              ----
<S>                                                                                                           <C>
Prime Rate.................................................................................................    33
Principal Only Class.......................................................................................    30
Principal Prepayments......................................................................................    26
Private Mortgage-Backed Securities.........................................................................     3
Prohibited Transactions Tax................................................................................    79
PTE 83-1...................................................................................................    83
Purchase Price.............................................................................................    22
Rating Agency..............................................................................................    42
Record Date................................................................................................    24
Reference Banks............................................................................................    30
Regular Certificateholders.................................................................................    67
Regular Certificates.......................................................................................    66
Relief Act.................................................................................................    58
REMIC......................................................................................................    11
REMIC Certificates.........................................................................................    66
REMIC Regulations..........................................................................................    59
Reserve Fund...............................................................................................     9
Reserve Interest Rate......................................................................................    30
Residual Certificateholder.................................................................................    74
Residual Certificates......................................................................................    66
Retained Interest..........................................................................................    23
S&P........................................................................................................    84
Scheduled Principal Class..................................................................................    29
Seller.....................................................................................................     3
Senior Certificateholders..................................................................................     8
Senior Certificates........................................................................................     7
Sequential Pay.............................................................................................    29
Series.....................................................................................................     3
Single Family Certificates.................................................................................    83
SMMEA......................................................................................................    11
Special Hazard Insurance Policy............................................................................     9
Special Hazard Insurer.....................................................................................    37
Strip......................................................................................................    29
Stripped ARM Obligations...................................................................................    65
Stripped Bond Certificates.................................................................................    62
Stripped Coupon Certificates...............................................................................    62
Subordinated Certificateholders............................................................................     8
Subordinated Certificates..................................................................................     7
Sub-Servicer...............................................................................................    10
Subsidiary REMIC...........................................................................................    67
Super-Premium Certificates.................................................................................    69
Support Class..............................................................................................    29
Targeted Principal Class...................................................................................    29
Temporary Mark to Market Regulations.......................................................................    76
Title V....................................................................................................    58
Treasury Index.............................................................................................    32
Trust Fund.................................................................................................     3
Trustee....................................................................................................     3
UCC........................................................................................................    55
Underwriter Exemption......................................................................................    84
U.S. Person................................................................................................    65
VA.........................................................................................................     4
VA Guaranty................................................................................................    10
VA Loans...................................................................................................    15
Variable Rate..............................................................................................    29
Voting Rights..............................................................................................    50
</TABLE>
    
 
                                       90

<PAGE>
<PAGE>
_____________________________                      _____________________________
 
     NO  PERSON  HAS BEEN  AUTHORIZED TO  GIVE  ANY INFORMATION  OR TO  MAKE ANY
REPRESENTATIONS OTHER THAN THOSE CONTAINED IN THIS PROSPECTUS SUPPLEMENT OR  THE
PROSPECTUS  AND, IF GIVEN OR MADE,  SUCH INFORMATION OR REPRESENTATIONS MUST NOT
BE RELIED UPON. THIS PROSPECTUS SUPPLEMENT AND THE PROSPECTUS DO NOT  CONSTITUTE
AN  OFFER TO SELL  OR A SOLICITATION  OF AN OFFER  TO BUY ANY  OF THE SECURITIES
OFFERED  HEREBY,  NOR  AN  OFFER  OF  OFFERED  CERTIFICATES  IN  ANY  STATE   OR
JURISDICTION  IN WHICH, OR TO ANY PERSON  TO WHOM, SUCH OFFER WOULD BE UNLAWFUL.
THE DELIVERY OF THIS  PROSPECTUS SUPPLEMENT OR THE  PROSPECTUS AT ANY TIME  DOES
NOT  IMPLY THAT THE INFORMATION CONTAINED HEREIN OR THEREIN IS CORRECT AS OF ANY
TIME SUBSEQUENT TO ITS DATE; HOWEVER,  IF ANY MATERIAL CHANGE OCCURS WHILE  THIS
PROSPECTUS  SUPPLEMENT OR  PROSPECTUS IS REQUIRED  BY LAW TO  BE DELIVERED, THIS
PROSPECTUS  SUPPLEMENT  OR  THE  PROSPECTUS  WILL  BE  AMENDED  OR  SUPPLEMENTED
ACCORDINGLY.
 
                         ------------------------------
 
                               TABLE OF CONTENTS
 
<TABLE>
<CAPTION>
                                                                                                                               PAGE
                                                                                                                               ----
<S>                                                                                                                            <C>
                                                       PROSPECTUS SUPPLEMENT
Summary of Terms............................................................................................................   S-3
The Mortgage Pool...........................................................................................................   S-9
Servicing of Mortgage Loans.................................................................................................   S-15
Description of the Certificates.............................................................................................   S-18
Yield, Prepayment and Maturity Considerations...............................................................................   S-28
Credit Enhancement..........................................................................................................   S-35
Use of Proceeds.............................................................................................................   S-36
Certain Federal Income Tax Consequences.....................................................................................   S-36
ERISA Considerations........................................................................................................   S-37
Method of Distribution......................................................................................................   S-39
Legal Matters...............................................................................................................   S-39
Ratings.....................................................................................................................   S-39
                                                            PROSPECTUS
 
Prospectus Supplement.......................................................................................................     2
Available Information.......................................................................................................     2
Incorporation of Certain Documents by Reference.............................................................................     2
Summary of Terms............................................................................................................     3
The Trust Fund..............................................................................................................    12
Use of Proceeds.............................................................................................................    20
The Depositor...............................................................................................................    20
Mortgage Loan Program.......................................................................................................    21
Description of the Certificates.............................................................................................    23
Credit Enhancement..........................................................................................................    35
Yield and Prepayment Considerations.........................................................................................    39
The Pooling and Servicing Agreement.........................................................................................    41
Certain Legal Aspects of the Mortgage Loans.................................................................................    52
Certain Federal Income Tax Consequences.....................................................................................    59
State Tax Considerations....................................................................................................    82
ERISA Considerations........................................................................................................    82
Legal Investment............................................................................................................    85
Method of Distribution......................................................................................................    86
Legal Matters...............................................................................................................    87
Financial Information.......................................................................................................    87
Rating......................................................................................................................    87
Index to Defined Terms......................................................................................................    88
</TABLE>
 
                             $
                                 (APPROXIMATE)
 
                                  CWMBS, INC.
                                   DEPOSITOR
 
                            [COUNTRYWIDE HOME LOAN]
 
                           SELLER AND MASTER SERVICER
 
                             MORTGAGE PASS-THROUGH
                                 CERTIFICATES,
                                 SERIES 19    -
 
                  -------------------------------------------
                             PROSPECTUS SUPPLEMENT
                  -------------------------------------------
 
                                           , 19
 
_____________________________                      _____________________________





<PAGE>
<PAGE>
                                    PART II
                     INFORMATION NOT REQUIRED IN PROSPECTUS
 
ITEM 14. OTHER EXPENSES OF ISSUANCE AND DISTRIBUTION.*
 
     The  following table sets  froth the estimated  expenses in connection with
the issuance and distribution  of the Certificates  being registered under  this
Registration Statement, other than underwriting discounts and commissions:
 
<TABLE>
<S>                                                                                       <C>
SEC Registration Fee...................................................................   $  948,275.86
Printing and Engraving.................................................................       25,000.00
Legal Fees and Expenses................................................................       35,000.00
Trustee Fees and Expenses..............................................................       18,750.00
Rating Agency Fees.....................................................................      125,000.00
Miscellaneous..........................................................................        5,000.00
                                                                                          -------------
     Total.............................................................................   $1,157,025.86
                                                                                          -------------
                                                                                          -------------
</TABLE>
 
- ------------
 
*  All  amounts  except  the  SEC Registration  Fee  are  estimates  of expenses
   incurred in connection  with the  issuance and  distribution of  a Series  of
   Certificates  in an aggregate principal amount  assumed for these purposes to
   be equal to $250,000,000 of Certificates registered hereby.
 
ITEM 15. INDEMNIFICATION OF DIRECTORS AND OFFICERS.
 
     The Registrant's Certificate of Incorporation provides for  indemnification
of  directors and  officers of  the Registrant to  the full  extent permitted by
Delaware law.
 
     Section 145 of the Delaware General Corporation Law provides, in substance,
that Delaware corporations shall have the power, under specified  circumstances,
to  indemnify their directors, officers, employees and agents in connection with
actions, suits or proceedings brought  against them by a  third party or in  the
right  of the  corporation, by  reason of the  fact that  they were  or are such
directors, officers, employees or agents, against expenses incurred in any  such
action,  suit or proceeding. The Delaware  General Corporation Law also provides
that the  Registrant may  purchase insurance  on behalf  of any  such  director,
officer, employee or agent.
 
ITEM 16. EXHIBITS.
 
<TABLE>
<C>     <S>
 1.1*   -- Form of Underwriting Agreement.
 1.2*   -- Form of Indemnification and Contribution Agreement.
 3.1*   -- Certificate of Incorporation of the Registrant.
 3.2*   -- Bylaws of the Registrant.
 4.1*   -- Form of Pooling and Servicing Agreement.
 5.1    -- Opinion of Brown & Wood LLP as to the legality of the Certificates (including consent of such firm).
 8.1    -- Opinion of Brown & Wood LLP as to certain tax matters (included in exhibit 5.1 hereof).
23.1    -- Consent of Brown & Wood LLP (included in exhibits 5.1 and 8.1 hereof).
24.1    -- Power of Attorney.
</TABLE>
 
- ------------
 
*  Previously  filed as an  exhibit to Registration  Statement (No. 33-84910) on
   Form S-3 and incorporated herein by reference.
 
                                      II-1
 

<PAGE>
<PAGE>
ITEM 17. UNDERTAKINGS.
 
     The Registrant hereby undertakes:
 
          (1) To file,  during any  period in which  offers or  sales are  being
     made, a post-effective amendment to this registration statement;
 
              (i)  To include any prospectus required by Section 10(a)(3) of the
        Securities Act of 1933, as amended (the 'Act');
 
              (ii) To reflect in the prospectus any fact or events arising after
        the effective date  of the  registration statement (or  the most  recent
        post-effective   amendment  thereof)  which,   individually  or  in  the
        aggregate, represent a fundamental change  in the information set  forth
        in the registration statement;
 
             (iii)  To include any material information with respect to the plan
        of distribution not previously  disclosed in the registration  statement
        or   any  material  change  to  such  information  in  the  registration
        statement.
 
          (2) That, for the purpose of determining any liability under the  Act,
     each  post-effective amendment that contains a  form of prospectus shall be
     deemed to  be  a new  registration  statement relating  to  the  securities
     offered  therein, and the offering of such securities at that time shall be
     deemed to be the initial bona fide offering thereof.
 
          (3) To remove from registration by means of a post-effective amendment
     any  of  the  securities  being  registered  which  remain  unsold  at  the
     termination of the offering.
 
     The undersigned Registrant undertakes that, for purposes of determining any
liability  under the Act, each filing of the Registrant's annual report pursuant
to Section 13(a) or Section 15(d) of the Securities Exchange Act of 1934 that is
incorporated by reference in this Registration Statement shall be deemed to be a
new Registration Statement relating to  the securities offered therein, and  the
offering  of such securities at that time shall be deemed to be the initial bona
fide offering thereof.
 
     The undersigned registrant hereby undertakes to provide to the  underwriter
at  the closing specified  in the underwriting  agreements, certificates in such
denominations and registered  in such names  as required by  the underwriter  to
permit prompt delivery to each purchaser.
 
     Insofar  as indemnification  for liabilities arising  under the  Act may be
permitted to  directors,  officers and  controlling  persons of  the  Registrant
pursuant  to the  foregoing provisions,  or otherwise,  the Registrant  has been
advised that  in the  opinion of  the Securities  and Exchange  Commission  such
indemnification  is  against  public policy  as  expressed  in the  Act  and is,
therefore, unenforceable. In the event that a claim for indemnification  against
such  liabilities (other than the payment by the Registrant of expenses incurred
or paid by a director,  officer or controlling person  of the Registrant in  the
successful  defense  of any  action,  suit or  proceeding)  is asserted  by such
director, officer or controlling person in connection with the securities  being
registered, the Registrant will, unless in the opinion of its counsel the matter
has  been settled  by controlling  precedent, submit  to a  court of appropriate
jurisdiction the  question of  whether  such indemnification  by it  is  against
public  policy  as  expressed in  the  Act and  will  be governed  by  the final
adjudication of such issue.
 
                                      II-2




<PAGE>
<PAGE>
                                   SIGNATURES
 
     Pursuant  to the requirements of the Securities Act of 1933, the Registrant
certifies that it has  reasonable grounds to  believe that it  meets all of  the
requirements  for  filing on  Form  S-3 and  has  duly caused  this Registration
Statement and  Post-Effective Amendment  No. 1  to Registration  Statement  (No.
33-84910)  to  be  signed  on  its behalf  by  the  undersigned,  thereunto duly
authorized, in the City  of Pasadena, State  of California, on  the 18th day  of
July, 1996.
 
                                          CWMBS, INC.
 
                                          BY:       /S/ STANFORD L. KURLAND
                                              ..................................
                                                     STANFORD L. KURLAND
                                                   CHAIRMAN OF THE BOARD,
                                                   PRESIDENT AND DIRECTOR
 
                               POWER OF ATTORNEY
 
     KNOW  ALL MEN BY  THESE PRESENTS, that each  person whose signature appears
below constitutes and appoints each of Stanford L. Kurland, Carlos Garcia, Kevin
W. Bartlett  and  Thomas  H.  Boone,  or  any  of  them,  his  true  and  lawful
attorneys-in-fact   and   agents,   with   full   power   of   substitution  and
resubstitution, for  him  and  his  name,  place  and  stead,  in  any  and  all
capacities, to sign any and all amendments (including post-effective amendments)
to this Registration Statement, and to file the same, with all exhibits thereto,
and  other documents in  connection therewith, with  the Securities and Exchange
Commission, granting unto said attorneys-in-fact  and agents, and each of  them,
full  power  and  authority to  do  and perform  each  and every  act  and thing
requisite and necessary to be  done in and about the  premises, as fully to  all
intents  and purposes as  he might or  could do in  person, hereby ratifying and
confirming all that said attorneys-in-fact and agents, or any of them, or  their
or his substitutes, may lawfully do or cause to be done by virtue hereof.
 
     Pursuant   to  the  requirements  of  the  Securities  Act  of  1933,  this
Registration Statement  and  Post-Effective  Amendment  No.  1  to  Registration
Statement  (No.  33-84910)  has been  signed  by  the following  persons  in the
capacities and on the dates indicated.
 
<TABLE>
<CAPTION>
                SIGNATURE                                      TITLE                              DATE
- ------------------------------------------  --------------------------------------------   -------------------
<C>                                         <S>                                            <C>
         /S/ STANFORD L. KURLAND            Chairman of the Board,                            July 18, 1996
 .........................................    President and Director
           STANFORD L. KURLAND                (principal executive officer)
 
            /S/ CARLOS GARCIA               Executive Vice President and Director             July 18, 1996
 .........................................    (principal financial and accounting
              CARLOS GARCIA                   officer)
 
           /S/ THOMAS H. BOONE              Executive Vice President and Director             July 18, 1996
 .........................................
             THOMAS H. BOONE
 
          /S/ KEVIN W. BARTLETT             Senior Vice President,                            July 18, 1996
 .........................................    Assistant Secretary and Director
             KEVIN W. BARLETT
 
          /S/ JEFFREY P. GROGIN             Director                                          July 18, 1996
 .........................................
            JEFFREY P. GROGIN
</TABLE>
 
                                      II-3

                STATEMENT OF DIFFERENCES
                ------------------------
The registered service mark shall be expressed as..... 's'
The division sign shall be expressed as............... [div]
<PAGE>
<PAGE>
                                 EXHIBIT INDEX
 
<TABLE>
<CAPTION>
                                                                                                           SEQUENTIAL
 EXHIBIT                                                                                                      PAGE
   NO.                                        DESCRIPTION OF EXHIBIT                                         NUMBER
- ---------  ---------------------------------------------------------------------------------------------   ----------
<C>        <S>                                                                                             <C>
 1.1(a)*   -- Form of Underwriting Agreement............................................................
 1.1(b)*   -- Form of Indemnification and Contribution Agreement........................................
 3.1*      -- Certificate of Incorporation of the Registrant............................................
 3.2*      -- Bylaws of the Registrant..................................................................
 4.1*      -- Form of Pooling and Servicing Agreement...................................................
 5.1       -- Opinion of Brown & Wood LLP as to legality of the Certificates (including consent of such
              firm).....................................................................................
 8.1       -- Opinion of Brown & Wood LLP as to certain tax matters (included in Exhibit 5.1)...........
23.1       -- Consent of Brown & Wood LLP (included in Exhibits 5.1 and 8.1)............................
24.1       -- Power of Attorney.........................................................................
</TABLE>
 
- ------------
 
*  Previously filed as an exhibit to Registration Statement (No. 33-84910) on
   Form S-3 and incorporated herein by reference.


<PAGE>



<PAGE>
                        [LETTERHEAD OF BROWN & WOOD LLP]
 
                                                                   July 18, 1996
 
CWMBS, Inc.
155 North Lake Avenue
Pasadena, California 91101
 
               Re: CWMBS, Inc.
                   Registration Statement on Form S-3 and Post-Effective
                   Amendment No. 1 to Registration Statement No. 33-84910
                   on Form S-3
                   ------------------------------------------------------ 
 
Ladies and Gentlemen:
 
     We  have  acted as  counsel for  CWMBS, Inc.,  a Delaware  corporation (the
'Company'), in connection with  the preparation of  a registration statement  on
Form  S-3  (the  'Registration  Statement')  relating  to  Mortgage Pass-Through
Certificates (the  'Certificates'),  issuable  in  series  (each,  a  'Series').
Pursuant  to Rule 429  under the Securities  Act of 1933,  as amended (the '1933
Act'), the Registration Statement also constitutes Post-Effective Amendment  No.
1  to Registration Statement  No. 33-84910 on  Form S-3 under  the 1933 Act. The
Registration  Statement  is  being  filed  with  the  Securities  and   Exchange
Commission  under the 1933 Act. As set forth in the Registration Statement, each
Series of Certificates will be issued under and pursuant to the conditions of  a
separate  pooling  and  servicing  agreement  (each  a  'Pooling  and  Servicing
Agreement') among the Company, a trustee and a master servicer to be  identified
in  the prospectus supplement for such Series of Certificates (the 'Trustee' and
the 'Master Servicer' for such Series, respectively.)
 
     We have examined copies  of the Company's  Certificate of Incorporation  by
Bylaws,  the form of Pooling and Servicing Agreement previously filed as Exhibit
4.1 to  the  Registration Statement  No.  33-84910, the  forms  of  Certificates
included  in such Pooling  and Servicing Agreement,  the prospectus contained in
the Registration Statement (the 'Prospectus'), and such other records, documents
and statutes as we have deemed necessary for purposes of this opinion.
 
     Based upon the foregoing, we are of the opinion that:
 
          1. When a Pooling and Servicing Agreement for a Series of Certificates
     has been duly and validly authorized by all necessary action on the part of
     the Company and has  been duly executed and  delivered by the Company,  the
     Master  Servicer, the Trustee and any  other party thereto for such Series,
     such Pooling and Servicing  Agreement will constitute  a valid and  binding
     agreement  of the Company, enforceable in accordance with its terms, except
     as enforcement thereof may  be limited by  bankruptcy, insolvency or  other
     laws  relating to  or affecting creditors'  rights generally  or by general
     equity principles.
 
          2. When  a Series  of Certificates  has been  duly authorized  by  all
     necessary  action on the part of the  Company (subject to the terms thereof
     being otherwise  in compliance  with  applicable law  at such  time),  duly
     executed  and countersigned  by the Trustee  for such  Series in accordance
     with the terms of the related  Pooling and Servicing Agreement, and  issued
     and  delivered against payment therefor as contemplated in the Registration
     Statement, such Series of Certificates will be legally and validly  issued,
     fully  paid and nonassessable, and the  holders thereof will be entitled to
     the benefits of the related Pooling and Servicing Agreement.
 

<PAGE>
<PAGE>
          3. The  information set  forth  in the  Prospectus under  the  caption
     'Certain   Federal  Income  Tax  Consequences,'   to  the  extent  that  it
     constitutes matters of law or legal conclusions, is correct.
 
     In rendering the foregoing opinions, we  express no opinion as to the  laws
of any jurisdiction other than the laws of the State of New York and the federal
laws of the United States of America.
 
     We  hereby  consent to  the use  of our  name in  the Prospectus  under the
captions 'Certain Federal Income Tax  Consequences' and 'Legal Matters,' and  to
the filing of this opinion as an exhibit to the Registration Statement.
 
                                          Very truly yours,
 
                                          /s/ BROWN & WOOD LLP
 
                                       2


<PAGE>



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