CITICORP MORTGAGE SECURITIES INC
424B5, 1998-02-25
ASSET-BACKED SECURITIES
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PROSPECTUS SUPPLEMENT
(TO PROSPECTUS DATED FEBRUARY 24, 1998)

                           $205,904,926 (APPROXIMATE)
                       CITICORP MORTGAGE SECURITIES, INC.
                            (PACKAGER AND SERVICER)

                REMIC PASS-THROUGH CERTIFICATES, SERIES 1998-1,
           $197,805,926 (APPROXIMATE) SENIOR CLASS A CITICERTIFICATES
     $5,191,000 (APPROXIMATE) SENIOR SUBORDINATED CLASS M CITICERTIFICATES
        $1,765,000 (APPROXIMATE) SUBORDINATED CLASS B-1 CITICERTIFICATES
        $1,143,000 (APPROXIMATE) SUBORDINATED CLASS B-2 CITICERTIFICATES

     The REMIC  Pass-Through  Certificates,  Series 1998-1,  will consist of one
senior class of REMIC Pass-Through Certificates (the "Class A CitiCertificates")
in an approximate aggregate Initial Stated Amount of $197,805,926,  subject to a
permitted  upward or downward  variance of up to 5.0%,  one senior  subordinated
class of REMIC Pass-Through Certificates (the "Class M
                                                   (Continued on following page)

                                   ----------

     FOR A DISCUSSION  OF CERTAIN  RISK FACTORS  INVOLVED IN THE PURCHASE OF THE
CLASS M CITICERTIFICATES AND OFFERED CLASS B CITICERTIFICATES, SEE "RISK FACTORS
FOR PURCHASERS OF CLASS M CITICERTIFICATES AND OFFERED CLASS B CITICERTIFICATES"
IN THIS PROSPECTUS SUPPLEMENT BEGINNING ON PAGE S-26.

                                   ----------

   THE OFFERED CITICERTIFICATES DO NOT REPRESENT AN INTEREST IN OR OBLIGATION
  OF CMSI, CITIBANK, CMI, ANY OTHER AFFILIATE OF CMSI OR THEIR ULTIMATE PARENT,
            CITICORP, EXCEPT AS SET FORTH HEREIN. NEITHER THE OFFERED
        CITICERTIFICATES NOR THE MORTGAGE LOANS ARE INSURED OR GUARANTEED
         BY THE UNITED STATES GOVERNMENT, THE FEDERAL DEPOSIT INSURANCE
                  CORPORATION OR ANY OTHER GOVERNMENTAL AGENCY
                               OR INSTRUMENTALITY.


  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 Stated                             Last Scheduled
                                Amount (Approx.)       Stated Rate       Distribution Date(1)
- -----------------------------------------------------------------------------------------------
<S>                                <C>                     <C>           <C>  
Class A-1 CitiCertificates         $128,077,000            6.75%         February 25, 2028
Class A-2 CitiCertificates         $  6,000,000            6.75%         February 25, 2028
Class A-3 CitiCertificates         $ 32,561,000            6.75%         February 25, 2028
Class A-4 CitiCertificates         $ 10,254,477            6.75%         February 25, 2028
Class A-5 CitiCertificates         $ 20,767,000            6.75%         February 25, 2028
Class A-6 CitiCertificates         $    146,449             (2)          February 25, 2028
Class M CitiCertificates           $  5,191,000            6.75%         February 25, 2028
Class B-1 CitiCertificates         $  1,765,000            6.75%         February 25, 2028
Class B-2 CitiCertificates         $  1,143,000            6.75%         February 25, 2028
===============================================================================================
</TABLE>

(1)  Determined as described  herein under "Summary of Prospectus and Prospectus
     Supplement--Last Scheduled Distribution Date."

(2)  The Class A-6 CitiCertificates are principal-only certificates and will not
     bear interest.

                                   ----------

     The Offered CitiCertificates are being offered by Salomon Brothers Inc (the
"Underwriter"),  from time to time in  negotiated  transactions  or otherwise at
varying prices to be determined at the time of sale.  The aggregate  proceeds to
the Issuer from the sale of the Offered  CitiCertificates  will be approximately
98.97101%   of  the   aggregate   Initial   Stated   Amount   of  the   Class  A
CitiCertificates, approximately 99.32918% of the aggregate Initial Stated Amount
of the Class M  CitiCertificates  and  approximately  97.96623% of the aggregate
Initial  Stated  Amount of the Offered  Class B  CitiCertificates,  plus accrued
interest   (other  than  on  the  Initial   Stated   Amount  of  the  Class  A-6
CitiCertificates)  from  February  1,  1998  (the  "Cut-Off  Date")  to but  not
including  the  Closing  Date at the rate of 6.75% per annum  thereon and before
deduction  of expenses  payable by the Issuer,  subject to a limited  adjustment
with respect to the Class A CitiCertificates  depending on the aggregate Initial
Stated Amount of the Class A CitiCertificates  on the Closing Date. See "Plan of
Distribution" herein.

     The Offered  CitiCertificates are offered subject to receipt and acceptance
by the Underwriter,  to prior sale and to the Underwriter's  right to reject any
order in whole or in part.  It is expected  that on or about  February 26, 1998,
delivery  will be made through the  facilities of The  Depository  Trust Company
("DTC") in the case of the Book-Entry CitiCertificates, and in definitive, fully
registered  form,  in the case of the  Class A-6  CitiCertificates,  the Class M
CitiCertificates and the Offered Class B CitiCertificates.

                              SALOMON SMITH BARNEY

          The date of this Prospectus Supplement is February 24, 1998.

<PAGE>

(Continued from previous page)

CitiCertificates")  in an  approximate  Initial  Stated  Amount  of  $5,191,000,
subject to a permitted  variance based on final credit  enhancement  levels, one
subordinated   class  of  REMIC   Pass-Through   Certificates   (the   "Class  B
CitiCertificates")   in  an  approximate  aggregate  Initial  Stated  Amount  of
$4,673,338,  subject to a permitted  variance based on final credit  enhancement
levels,  one senior class of interest only REMIC  Pass-Through  Certificates not
offered hereby (the "Unoffered Class A-IO  CitiCertificates")  in an approximate
initial  notional amount of  $202,599,233,  and one class of residual  interests
(the "Residual  Certificates"),  representing interests in a trust (the "Trust")
to be created by Citicorp Mortgage Securities,  Inc. (the "Issuer" or "CMSI") on
or about  February  26, 1998.  An election  will be made to treat the Trust as a
real  estate  mortgage  investment  conduit (a "REMIC")  for federal  income tax
purposes.   The  Class  A,   Unoffered   Class   A-IO,   Class  M  and  Class  B
CitiCertificates  are collectively  referred to as the  "CitiCertificates."  The
Class A CitiCertificates  will consist of Class A-1, Class A-2, Class A-3, Class
A-4, Class A-5 and Class A-6 CitiCertificates (each, a "Class A Subclass").  The
Class A-6  CitiCertificates  are  principal-only  certificates and will not bear
interest.  The Class B  CitiCertificates  will consist of Class B-1,  Class B-2,
Class  B-3,  Class  B-4  and  Class  B-5  CitiCertificates  (each,  a  "Class  B
Subclass").  The Class B-1 and Class B-2  CitiCertificates  (each,  an  "Offered
Class  B  Subclass")   are   referred  to  herein  as  the   "Offered   Class  B
CitiCertificates"  and the Class B-3,  Class B-4 and Class B-5  CitiCertificates
are herein referred to as the "Unoffered Class B CitiCertificates."  The Class A
CitiCertificates  will  initially  evidence an  undivided  beneficial  ownership
interest in the property of the Trust ranging from 94.25% to 96.25%, the Class M
CitiCertificates  will  initially  evidence an  undivided  beneficial  ownership
interest in the property of the Trust  ranging from 1.50% to 3.50%,  the Offered
Class B  CitiCertificates  will initially  evidence an undivided interest in the
property  of the Trust  ranging  from 0.90% to 1.90% and the  Unoffered  Class B
CitiCertificates  will evidence the remaining  undivided interest therein.  Only
the Class A CitiCertificates, the Class M CitiCertificates and the Offered Class
B  CitiCertificates  (the "Offered  CitiCertificates")  are offered hereby.  The
Class A  CitiCertificates  are  sometimes  referred  to as the  "Offered  Senior
CitiCertificates,"  and the Class M  CitiCertificates  and the  Offered  Class B
CitiCertificates   are  sometimes  referred  to  collectively  as  the  "Offered
Subordinated CitiCertificates."

     The Trust Property (the "Pool") will consist  primarily of a pool of 20- to
30-year  fixed-rate   conventional  one-  to  four-family  mortgage  loans  (the
"Mortgage Loans") originated or acquired by Citicorp Mortgage, Inc. ("CMI") with
an aggregate Adjusted Balance as of the Cut-Off Date (the "Initial Mortgage Loan
Balance") equal to approximately $207,670,264,  subject to a permitted upward or
downward  variance of up to 5.0%,  and certain  related  property,  as described
herein.  Mortgage  Loans acquired by CMI include  Mortgage  Loans  originated or
acquired by Citibank,  Federal  Savings Bank ("CFSB") or originated by Citibank,
N.A.  ("Citibank").  Payments on the Mortgage  Loans will be  distributed on the
CitiCertificates  in accordance  with the  priorities  stated in the "Summary of
Prospectus   and   Prospectus   Supplement--Priority   of   Distributions"   and
"Description of the Offered CitiCertificates."

     Interest  on  each   interest-bearing   Offered   CitiCertificate  will  be
distributed  on the 25th day of each  month  (or,  if such day is not a business
day, on the next  succeeding  business  day),  commencing in March 1998 (each, a
"Distribution  Date").  Interest  will  accrue on the  interest-bearing  Offered
CitiCertificates  for the  periods  and at the rates as  described  herein.  The
rights of holders of the Class M  CitiCertificates  to receive  distributions of
interest  will be  subordinated  to the  rights  of  holders  of the Class A and
Unoffered Class A-IO  CitiCertificates  to receive  distributions  to the extent
described herein.  The rights of holders of the Offered Class B CitiCertificates
to receive  distributions  of  interest  will be  subordinated  to the rights of
holders of the Class A,  Unoffered  Class A-IO and Class M  CitiCertificates  to
receive  distributions to the extent described herein.  The rights of holders of
the Unoffered Class B CitiCertificates to receive distributions of interest will
be subordinated to the rights of holders of the Offered CitiCertificates and the
Unoffered Class A-IO  CitiCertificates  to receive  distributions  to the extent
described herein.

     On each Distribution  Date,  distributions in reduction of Stated Amount of
the  Class A  CitiCertificates,  in an  amount  equal to the  Class A  Principal
Distribution  Amount,  will be  allocated  among  the  Class A  Subclasses  then
entitled to receive such  distributions  in accordance  with the  priorities set
forth herein.  On each Distribution  Date,  distributions in reduction of Stated
Amount of the Class M  CitiCertificates  will be made only after the Class A and
Unoffered Class A-IO  CitiCertificates  have received all distributions to which
they are entitled and the Class M  CitiCertificates  have received the amount of
interest due them with respect to such  Distribution  Date. On each Distribution
Date,   distributions   in  reduction   of  Stated   Amount  of  the  Class  B-1
CitiCertificates  will be made only after the Class A, Unoffered  Class A-IO and
Class M CitiCertificates have received all distributions to which they are

                                      S-2

<PAGE>

(Continued from previous page)

entitled and the Class B-1 CitiCertificates have received the amount of interest
due them with respect to such  Distribution  Date.  On each  Distribution  Date,
distributions  in reduction of Stated  Amount of the Class B-2  CitiCertificates
will be made only after the Class A, Unoffered Class A-IO, Class M and Class B-1
CitiCertificates  have received all distributions to which they are entitled and
the Class B-2  CitiCertificates  have  received  the amount of interest due them
with respect to such  Distribution  Date. The rights of holders of the Unoffered
Class B CitiCertificates to receive  distributions in reduction of Stated Amount
will be  subordinated  to the rights of holders of the Offered  CitiCertificates
and Unoffered Class A-IO CitiCertificates to receive distributions to the extent
described herein.

     THE YIELD TO INVESTORS IN THE OFFERED CITICERTIFICATES WILL BE SENSITIVE IN
VARYING DEGREES TO THE RATE OF PRINCIPAL PAYMENTS (INCLUDING PREPAYMENTS) ON THE
MORTGAGE LOANS,  WHICH GENERALLY CAN BE PREPAID AT ANY TIME,  GENERALLY  WITHOUT
PENALTY.  THE  YIELD  TO  INVESTORS  IN THE  OFFERED  CITICERTIFICATES  WILL  BE
ADVERSELY AFFECTED BY ANY SHORTFALLS IN INTEREST COLLECTED ON THE MORTGAGE LOANS
DUE TO PREPAYMENTS OR LIQUIDATIONS.  SUCH SHORTFALLS IN INTEREST  COLLECTED WILL
BE OFFSET TO THE EXTENT DESCRIBED HEREIN. IN ADDITION,  THE YIELD TO MATURITY ON
THE  OFFERED  CITICERTIFICATES  MAY VARY  DEPENDING  ON THE EXTENT TO WHICH SUCH
CITICERTIFICATES  ARE  PURCHASED  AT A DISCOUNT OR  PREMIUM.  HOLDERS OF OFFERED
CITICERTIFICATES  SHOULD  CONSIDER,  IN THE CASE OF ANY OFFERED  CITICERTIFICATE
PURCHASED AT A DISCOUNT,  ESPECIALLY  THE CLASS A-6  CITICERTIFICATES,  THE RISK
THAT A SLOWER THAN  ANTICIPATED  RATE OF PRINCIPAL  PAYMENTS  WOULD RESULT IN AN
ACTUAL  YIELD THAT IS LOWER THAN THE  ANTICIPATED  YIELD AND, IN THE CASE OF ANY
OFFERED  CITICERTIFICATE  PURCHASED  AT A PREMIUM,  THE RISK THAT A FASTER  THAN
ANTICIPATED  RATE OF PRINCIPAL  PAYMENTS WOULD RESULT IN AN ACTUAL YIELD THAT IS
LOWER   THAN   ANTICIPATED.   BECAUSE   AMOUNTS   PAYABLE   ON  THE   CLASS  A-6
CITICERTIFICATES  DERIVE SOLELY FROM  PRINCIPAL  PAYMENTS ON THE MORTGAGE  LOANS
WITH NET  MORTGAGE  RATES  BELOW  6.75%  PER  ANNUM,  THE YIELD ON THE CLASS A-6
CITICERTIFICATES WILL BE ADVERSELY AFFECTED BY SLOWER THAN ANTICIPATED PRINCIPAL
PAYMENTS ON SUCH MORTGAGE LOANS. NO REPRESENTATION IS MADE AS TO THE ANTICIPATED
RATE OF  PREPAYMENT  ON THE  MORTGAGE  LOANS OR AS TO THE  ANTICIPATED  YIELD TO
MATURITY OF ANY OFFERED CITICERTIFICATES.

     The  holders  of the Class A-5  CitiCertificates  will not be  entitled  to
receive  any  distributions  in  reduction  of the  Stated  Amount  prior to the
Distribution  Date in March 2003,  and prior to the  Distribution  Date in March
2007 will receive a  disproportionately  small portion of principal  payments on
the Mortgage  Loans,  unless the Stated  Amounts of all other Class A Subclasses
(other  than the  Class  A-6  CitiCertificates)  or the  Stated  Amounts  of the
Subordinated  CitiCertificates  have been  reduced  to zero.  As a  result,  the
weighted average life will be longer,  and could be significantly  longer,  than
would be the case if the  Class  A-5  CitiCertificates  received  their pro rata
share of the Class A Percentage and Class A Prepayment  Percentage of the Non-PO
Percentage of all principal payments received on the Mortgage Loans.

     The  Unoffered  Class  A-IO   CitiCertificates  (not  offered  hereby)  are
interest-only  CitiCertificates  and have no Stated Amount.  The Unoffered Class
A-IO  CitiCertificates  will receive  distributions of accrued interest pro rata
together  with  the  interest-bearing  Class  A  CitiCertificates  and  are  not
subordinated to the Class A, Class M or Class B CitiCertificates.

     The Offered  CitiCertificates may not be an appropriate  investment for all
prospective investors.  The Offered CitiCertificates would not be an appropriate
investment for an investor  requiring a distribution  of a particular  amount in
reduction of Stated Amount on a specific date or an otherwise predictable stream
of  distributions.  In addition,  there is currently no secondary market for the
Offered CitiCertificates.  The Underwriter anticipates making a secondary market
in the Offered  CitiCertificates  but is not obligated to do so. There can be no
assurance  that such a market will develop or, if it does develop,  that it will
provide holders of the Offered  CitiCertificates with liquidity of investment or
will  continue  for the life of the  Offered  CitiCertificates.  There can be no
assurance that the investor will be able to sell an Offered CitiCertificate at a
price  which is equal  to or  greater  than  the  price at which  such  investor
purchased  such Offered  CitiCertificate  or at a price which fully reflects the
fair market value of the underlying Mortgage Loans.

     The yield to maturity on the Offered Class B CitiCertificates  will be more
sensitive to losses due to  liquidations  of the Mortgage  Loans (and the timing
thereof) than the Class A, Unoffered Class A-IO and Class M CitiCertificates, in
the event that the Stated Amount of the Unoffered Class B  CitiCertificates  has
been reduced to zero. The yield to maturity on the Class M CitiCertificates will
be more sensitive to losses due to  liquidations  of the Mortgage Loans (and the
timing thereof) than the Class A and Unoffered Class A-IO  CitiCertificates,  in
the event that the Stated

                                      S-3

<PAGE>

(Continued from previous page)

Amount  of  the  Class  B  CitiCertificates   has  been  reduced  to  zero.  See
"Description   of   the   Offered    CitiCertificates--Prepayment    and   Yield
Considerations" and "--Yield  Considerations With Respect to the Offered Class B
CitiCertificates" in this Prospectus Supplement. Investors should fully consider
the risks  associated  with an  investment  in the Class M and  Offered  Class B
CitiCertificates,  including the  possibility  that such investors may not fully
recover  their  initial  investment  as a result of such losses on the  Mortgage
Loans.

     The Class M CitiCertificates  and the Offered Class B CitiCertificates  may
not be  transferred  unless the  transferee  has delivered (i) a  representation
letter to the Issuer and the Trustee  stating  either (a) that the transferee is
not a Plan and is not  acting on behalf of a Plan or using the  assets of a Plan
to effect such purchase or (b) subject to certain  conditions  described herein,
that the  source  of funds  used to  purchase  the  Class M or  Offered  Class B
CitiCertificates is an "insurance company general account" or (ii) an opinion of
counsel  and other  documentation  as  provided  herein.  See "Risk  Factors for
Purchasers  of Class M and  Offered  Class B  CitiCertificates--Restrictions  on
Transfer" and "ERISA Considerations" herein.

     The closing of the sale of the Offered CitiCertificates is conditioned upon
the  closing  of the sale of the  Unoffered  Class B  CitiCertificates.  Salomon
Brothers  Inc  is  committed   to  purchase  all  of  the   Unoffered   Class  B
CitiCertificates if any Offered CitiCertificates are purchased.

     The   Offered   Senior   CitiCertificates   (other   than  the   Class  A-6
CitiCertificates)  will be issued  in  book-entry  form  only  (the  "Book-Entry
CitiCertificates"),  and  purchasers  thereof  will not be  entitled  to receive
definitive  certificates  except in the limited  circumstances set forth herein.
The  Book-Entry  CitiCertificates  will be  registered in the name of Cede & Co.
("Cede"),  as nominee of DTC, which will be the "holder" or  "Certificateholder"
of such  Book-Entry  CitiCertificates,  as  such  terms  are  used  herein.  See
"Description  of  the  Offered  CitiCertificates--Book-Entry  Registration"  and
"--Definitive Certificates" herein. The Class A-6 CitiCertificates,  the Class M
CitiCertificates  and the  Offered  Class B  CitiCertificates  will be issued in
definitive, fully registered form.

                                   ----------

     IN CONNECTION WITH THIS OFFERING,  THE UNDERWRITER MAY OVER-ALLOT OR EFFECT
TRANSACTIONS  WHICH  STABILIZE  OR  MAINTAIN  THE  MARKET  PRICE OF THE  OFFERED
CITICERTIFICATES AT A LEVEL ABOVE THAT WHICH MIGHT OTHERWISE PREVAIL IN THE OPEN
MARKET. SUCH STABILIZING, IF COMMENCED, MAY BE DISCONTINUED AT ANY TIME.

                                   ----------

     THIS PROSPECTUS  SUPPLEMENT DOES NOT CONTAIN COMPLETE INFORMATION ABOUT THE
OFFERING OF THE OFFERED CITICERTIFICATES. ADDITIONAL INFORMATION IS CONTAINED IN
THE PROSPECTUS AND PURCHASERS ARE URGED TO READ BOTH THIS PROSPECTUS  SUPPLEMENT
AND THE  PROSPECTUS IN FULL.  SALES OF THE OFFERED  CITICERTIFICATES  MAY NOT BE
CONSUMMATED  UNLESS THE PURCHASER HAS RECEIVED BOTH THIS  PROSPECTUS  SUPPLEMENT
AND THE PROSPECTUS.


                                      S-4
<PAGE>

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

                SUMMARY OF PROSPECTUS AND PROSPECTUS SUPPLEMENT

     The following summary is qualified by reference to the detailed information
appearing  elsewhere  in  this  Prospectus  Supplement  and in  the  Prospectus.
Capitalized  terms used herein shall have the meanings  given  elsewhere in this
Prospectus Supplement and in the Prospectus. See "Index of Principal Definitions
in Prospectus Supplement" at the end of this Prospectus Supplement.

SECURITIES OFFERED .................     REMIC Pass-Through Certificates, Series
                                            1998-1,      Senior      Class     A
                                            CitiCertificates,    consisting   of
                                            Class  A-1,  Class  A-2,  Class A-3,
                                            Class  A-4,  Class A-5 and Class A-6
                                            CitiCertificates,             Senior
                                            Subordinated         Class         M
                                            CitiCertificates   and  Subordinated
                                            Class     B-1    and    Class    B-2
                                            CitiCertificates.    Each    Offered
                                            CitiCertificate     represents    an
                                            undivided    beneficial    ownership
                                            interest in the Trust  created under
                                            the Pooling Agreement,  the property
                                            of which  will  consist of a pool of
                                            assets  comprised  primarily  of the
                                            Mortgage   Loans   conveyed  to  the
                                            Issuer  by  CMI  and  simultaneously
                                            conveyed   to  such   Trust  by  the
                                            Issuer. The rights of holders of the
                                            Class   B-2    CitiCertificates   to
                                            receive    distributions   will   be
                                            subordinated   to  the   rights   of
                                            holders  of the  Class A,  Unoffered
                                            Class  A-IO,  Class M and  Class B-1
                                            CitiCertificates   to   the   extent
                                            described  herein.   The  rights  of
                                            holders    of    the    Class    B-1
                                            CitiCertificates      to     receive
                                            distributions  will be  subordinated
                                            to  the  rights  of  holders  of the
                                            Class A,  Unoffered  Class  A-IO and
                                            Class  M  CitiCertificates   to  the
                                            extent described herein.  The rights
                                            of    holders   of   the   Class   M
                                            CitiCertificates      to     receive
                                            distributions  will be  subordinated
                                            to  the  rights  of  holders  of the
                                            Class  A and  Unoffered  Class  A-IO
                                            CitiCertificates   to   the   extent
                                            described herein.

                                         Each    Class    A    and    Class    M
                                            CitiCertificate   will   qualify  at
                                            issuance  as  a  "mortgage   related
                                            security"  within the meaning of the
                                            Secondary       Mortgage      Market
                                            Enhancement  Act of  1984  ("SMMEA")
                                            and will retain  such  qualification
                                            so long as it is rated in one of the
                                            two highest rating  categories by at
                                            least  one   nationally   recognized
                                            statistical rating organization. The
                                            Class     B-1    and    Class    B-2
                                            CitiCertificates will not constitute
                                            "mortgage related securities" within
                                            the  meaning  of SMMEA.  See  "Legal
                                            Investment"   in   this   Prospectus
                                            Supplement and "Legal Investment" in
                                            the Prospectus.

                                         In addition      to     the     Offered
                                            CitiCertificates,      the     REMIC
                                            Pass-Through  Certificates,   Series
                                            1998-1,  include the Unoffered Class
                                            A-IO CitiCertificates, the Unoffered
                                            Class B CitiCertificates, consisting
                                            of the  Class  B-3,  Class  B-4  and
                                            Class B-5  CitiCertificates  and one
                                            class   of   Residual   Certificates
                                            representing  the residual  interest
                                            in the REMIC  comprising  the Trust.
                                            The   rights  of   holders   of  the
                                            Unoffered  Class B  CitiCertificates
                                            to  receive  distributions  will  be
                                            subordinated   to  the   rights   of
                                            holders      of     the      Offered
                                            CitiCertificates  and the  Unoffered
                                            Class   A-IO   CitiCertificates   to
                                            receive  distributions to the extent
                                            described   herein.   The  Unoffered
                                            Class  B  CitiCertificates  will  be
                                            sold   separately  in  one  or  more
                                            private transactions,  the Unoffered
                                            Class A-IO  CitiCertificates and the
                                            Residual Certificates will initially
                                            be  held   by   CMI.   None  of  the
                                            Unoffered         Class         A-IO
                                            CitiCertificates,    the   Unoffered
                                            Class  B  CitiCertificates  and  the
                                            Residual   Certificates   are  being
                                            offered    by    this     Prospectus
                                            Supplement     and    the    related
                                            Prospectus.   Accordingly,   to  the
                                            extent  this  Prospectus  Supplement
                                            contains information relating to the
                                            terms of the  Unoffered  Class  A-IO

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

                                      S-5
<PAGE>

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

                                            CitiCertificates,    the   Unoffered
                                            Class  B  CitiCertificates  and  the
                                            Residual     Certificates,      such
                                            information   is   provided   solely
                                            because of its  potential  relevance
                                            to a  prospective  purchaser  of the
                                            Offered    CitiCertificates.     The
                                            issuance  and  sale  of the  Offered
                                            CitiCertificates   are   conditioned
                                            upon  the  issuance  and sale of the
                                            Unoffered Class B CitiCertificates.

                                         The CitiCertificates and  the  Residual
                                            Certificates will be issued pursuant
                                            to a pooling and servicing agreement
                                            (the "Pooling  Agreement")  dated as
                                            of  February  1, 1998,  between  the
                                            Issuer  and The Bank of New York,  a
                                            New York banking corporation, in its
                                            individual  capacity  and as trustee
                                            (the "Trustee").

STATED AMOUNT OR NOTIONAL AMOUNT
 OF THE CITICERTIFICATES ...........     The aggregate Initial  Stated Amount of
                                            the Class A CitiCertificates will be
                                            approximately $197,805,926,  subject
                                            to a  permitted  upward or  downward
                                            variance of up to 5.0%,  and will be
                                            initially  from  94.25% to 96.25% of
                                            the Initial  Mortgage  Loan Balance.
                                            The aggregate  Initial Stated Amount
                                            of the Class M CitiCertificates will
                                            be approximately $5,191,000, subject
                                            to a  permitted  upward or  downward
                                            variance   based  on  final   credit
                                            enhancement   levels,  and  will  be
                                            initially from 1.50% to 3.50% of the
                                            Initial  Mortgage Loan Balance.  The
                                            aggregate  Initial  Stated Amount of
                                            the Offered Class B CitiCertificates
                                            will  be  approximately  $2,908,000,
                                            subject  to a  permitted  upward  or
                                            downward  variance  based  on  final
                                            credit enhancement  levels, and will
                                            be initially  from 0.90% to 1.90% of
                                            the Initial  Mortgage  Loan Balance.
                                            The aggregate  Initial Stated Amount
                                            of    the    Unoffered    Class    B
                                            CitiCertificates       will       be
                                            approximately $1,765,338, subject to
                                            a   permitted   upward  or  downward
                                            variance   based  on  final   credit
                                            enhancement    levels,    and   will
                                            represent   the   remainder  of  the
                                            Initial  Mortgage Loan Balance.  The
                                            Unoffered         Class         A-IO
                                            CitiCertificates, which will have no
                                            Stated Amount,  will have a notional
                                            amount  (the  "Unoffered  Class A-IO
                                            Notional     Amount")     for    any
                                            Distribution   Date   equal  to  the
                                            aggregate  Adjusted  Balance  of the
                                            Premium  Mortgage  Loans.  While the
                                            Unoffered Class A-IO Notional Amount
                                            will  be  used  to   determine   the
                                            denomination  of an Unoffered  Class
                                            A-IO CitiCertificate and for certain
                                            other purposes, such notional amount
                                            will not  entitle  a  holder  to any
                                            distributions   of  principal.   The
                                            Initial  Mortgage  Loan Balance will
                                            be    approximately    $207,670,264,
                                            subject  to a  permitted  upward  or
                                            downward variance of up to 5.0%. The
                                            Initial    Stated    Amount   of   a
                                            CitiCertificate    represents    the
                                            maximum  specified  dollar amount to
                                            which    the    holder    of    such
                                            CitiCertificate   is  entitled   (in
                                            addition   to    distributions    of
                                            interest,  except in the case of the
                                            Class  A-6  CitiCertificates,  which
                                            are   principal-only   certificates)
                                            from the cash flow on the  assets in
                                            the Pool.

                                         The aggregate of the Stated  Amounts of
                                            the  Class  A  Subclasses  as of any
                                            Distribution  Date is referred to as
                                            the  "Class  A Stated  Amount."  The
                                            "Class A Subclass  Stated Amount" of
                                            each  Class  A  Subclass  as of  any
                                            Distribution  Date  will  equal  the
                                            Initial  Stated Amount  thereof less
                                            certain  distributions  in reduction
                                            of Stated Amount and any  allocation
                                            of  certain   losses  as   described
                                            herein.   See  "Description  of  the
                                            Offered
                                            CitiCertificates--Distributions   in
                                            Reduction of Stated  Amount" in this
                                            Prospectus Supplement.

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                                      S-6
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                                         The "Class  M Stated Amount"  as of any
                                            Distribution  Date  will  equal  the
                                            Initial Stated Amount of the Class M
                                            CitiCertificates     less    certain
                                            distributions in reduction of Stated
                                            Amount and any allocation of certain
                                            losses  as  described  herein.   See
                                            "Description    of    the    Offered
                                            CitiCertificates--Distributions   in
                                            Reduction of Stated  Amount" in this
                                            Prospectus Supplement.

                                         The aggregate of the Stated  Amounts of
                                            the  Class  B  Subclasses  as of any
                                            Distribution  Date is referred to as
                                            the "Class B Stated Amount" and will
                                            be  equal   to  the  Pool   Adjusted
                                            Balance  minus  the  Class A  Stated
                                            Amount   and  the   Class  M  Stated
                                            Amount,  each as of the  immediately
                                            preceding  Distribution  Date (after
                                            giving  effect to any  distributions
                                            in  reduction  of Stated  Amount and
                                            the allocation of any Excess Special
                                            Hazard  Losses,  Excess Fraud Losses
                                            and Excess Bankruptcy Losses on such
                                            date).  The  Stated  Amount  of each
                                            Class B  Subclass  (with  respect to
                                            each Class B Subclass,  the "Class B
                                            Subclass  Stated  Amount"  for  such
                                            Subclass)  will  equal the lesser of
                                            (a)  the   Initial   Stated   Amount
                                            thereof  less  the  sum of  (i)  all
                                            amounts  previously  distributed  to
                                            holders of such Class B Subclass  in
                                            reduction of Stated  Amount and (ii)
                                            the principal  portion of all Excess
                                            Special Hazard Losses,  Excess Fraud
                                            Losses and Excess  Bankruptcy Losses
                                            borne by such Class B  Subclass  and
                                            (b) the Pool  Adjusted  Balance less
                                            the  sum  of  the   Class  A  Stated
                                            Amount,  the  Class M Stated  Amount
                                            and the Stated  Amount of each Class
                                            B  Subclass  with a lower  numerical
                                            designation,    all    as   of   the
                                            immediately  preceding  Distribution
                                            Date  (after  giving  effect  to any
                                            distributions in reduction of Stated
                                            Amount  and  the  allocation  of any
                                            Excess Special Hazard Losses, Excess
                                            Fraud  Losses and Excess  Bankruptcy
                                            Losses on such date). As a result of
                                            the foregoing,  so long as the Class
                                            B Stated Amount has not been reduced
                                            to zero,  the  principal  portion of
                                            all  Realized   Losses  (other  than
                                            Excess Special Hazard Losses, Excess
                                            Fraud  Losses and Excess  Bankruptcy
                                            Losses   which  are   allocated   as
                                            described   herein)  will   directly
                                            reduce the Class B Stated Amount and
                                            will  directly  reduce  the  Class B
                                            Subclass  Stated  Amounts in reverse
                                            numerical   order.   The   Class   B
                                            Subclass Stated Amounts of the Class
                                            B-1  CitiCertificates  and Class B-2
                                            CitiCertificates  are referred to as
                                            the "Class B-1  Stated  Amount"  and
                                            the  "Class   B-2  Stated   Amount,"
                                            respectively,  and the  aggregate of
                                            the Stated  Amounts  of the  Offered
                                            Class   B   Subclasses   as  of  any
                                            Distribution  Date is referred to as
                                            the "Offered Class B Stated Amount."
                                            The   aggregate   of  the   Class  B
                                            Subclass   Stated   Amounts  of  the
                                            Unoffered  Class B  CitiCertificates
                                            as  of  any  Distribution   Date  is
                                            referred to as the "Unoffered  Class
                                            B Stated Amount."

CUT-OFF DATE .......................     February 1, 1998.

DENOMINATIONS ......................     The denominations   of   the    Offered
                                            CitiCertificates  will be an Initial
                                            Stated  Amount  of  $1,000  and  any
                                            whole   dollar   amount   in  excess
                                            thereof (except one  CitiCertificate
                                            of each Class or Subclass  may be in
                                            a different denomination).

BOOK-ENTRY FORM ....................     The Offered  Senior    CitiCertificates
                                            (other    than   the    Class    A-6
                                            CitiCertificates)  will be issued in
                                            book-entry form. No person acquiring
                                            an   interest   in  the   Book-Entry
                                            CitiCertificates    (a   "Beneficial
                                            Owner")  will be entitled to receive
                                            a       definitive       certificate
                                            representing

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                                            such person's interest in the Trust,
                                            except     under     the     limited
                                            circumstances described herein. Each
                                            Subclass        of        Book-Entry
                                            CitiCertificates will be represented
                                            initially  by a  single  certificate
                                            registered  in the name of Cede,  as
                                            the nominee of DTC which will be the
                                            "holder" or  "Certificateholder"  of
                                            such CitiCertificates, as such terms
                                            are  used  herein.   The  rights  of
                                            Beneficial   Owners   may   only  be
                                            exercised   through   DTC   and  its
                                            participating organizations,  except
                                            as otherwise  specified herein.  The
                                            Class  A-6   CitiCertificates,   the
                                            Class  M  CitiCertificates  and  the
                                            Offered  Class  B   CitiCertificates
                                            will be issued in definitive,  fully
                                            registered form. See "Description of
                                            the                          Offered
                                            CitiCertificates--Book-Entry
                                            Registration"    and   "--Definitive
                                            Certificates"   in  this  Prospectus
                                            Supplement.

CLOSING DATE .......................     On or about February 26, 1998.

ISSUER AND SERVICER ................     CMSI.   The    Servicer    intends   to
                                            subcontract its servicing  duties to
                                            CMI.

CREDIT ENHANCEMENT .................     The rights of  holders  of the  Class M
                                            CitiCertificates      to     receive
                                            distributions  will be  subordinated
                                            to  the  rights  of  holders  of the
                                            Class  A and  Unoffered  Class  A-IO
                                            CitiCertificates      to     receive
                                            distributions    to    the    extent
                                            described  herein,   the  rights  of
                                            holders  of  the  Offered   Class  B
                                            CitiCertificates      to     receive
                                            distributions  will be  subordinated
                                            to  the  rights  of  holders  of the
                                            Class A,  Unoffered  Class  A-IO and
                                            Class M CitiCertificates  to receive
                                            distributions    to    the    extent
                                            described  herein  and the rights of
                                            holders  of the  Unoffered  Class  B
                                            CitiCertificates      to     receive
                                            distributions  will be  subordinated
                                            to  the  rights  of  holders  of the
                                            Offered     CitiCertificates     and
                                            Unoffered         Class         A-IO
                                            CitiCertificates      to     receive
                                            distributions    to    the    extent
                                            described herein. This subordination
                                            provides   a   certain   amount   of
                                            protection to holders of the Class A
                                            and     Unoffered     Class     A-IO
                                            CitiCertificates  (to the  extent of
                                            the subordination of the Class M and
                                            Class   B   CitiCertificates),    to
                                            holders     of    the     Class    M
                                            CitiCertificates  (to the  extent of
                                            the  subordination  of the  Class  B
                                            CitiCertificates)  and to holders of
                                            the Offered Class B CitiCertificates
                                            (to the extent of the  subordination
                                            of    the    Unoffered    Class    B
                                            CitiCertificates)  against delays in
                                            the receipt of scheduled payments of
                                            interest and  principal  and against
                                            losses     associated    with    the
                                            liquidation  of  defaulted  Mortgage
                                            Loans and certain  losses  resulting
                                            from the  bankruptcy of a Mortgagor.
                                            The    Class    M   and    Class   B
                                            CitiCertificates    are    sometimes
                                            referred  to   collectively  as  the
                                            "Subordinated CitiCertificates."

                                         In addition,  in order to increase  the
                                            period  during  which the  principal
                                            balance  of the  Class M and Class B
                                            CitiCertificates  remains  available
                                            as credit enhancement to the Class A
                                            CitiCertificates, a disproportionate
                                            amount of  prepayments  and  certain
                                            unscheduled  recoveries with respect
                                            to  the   Mortgage   Loans  will  be
                                            allocated    to    the    Class    A
                                            CitiCertificates (other than, to the
                                            extent described  herein,  the Class
                                            A-5 and Class A-6 CitiCertificates).
                                            This  allocation  has the  effect of
                                            accelerating the amortization of the
                                            Class A  CitiCertificates  while, in
                                            the  absence  of  Realized   Losses,
                                            increasing the respective percentage
                                            interest in the Trust  evidenced  by
                                            the  Class  M  CitiCertificates  and
                                            Class   B   CitiCertificates.    See
                                            "--Distributions   in  Reduction  of
                                            Stated   Amount   of   the   Offered
                                            CitiCertificates" below.

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                                         Extent of Loss Coverage. The applicable
                                            Non-PO Percentage of Realized Losses
                                            on   Mortgage    Loans,    including
                                            Realized   Losses   that   are   (i)
                                            attributable  to Special Hazards not
                                            insured  against  under  a  standard
                                            hazard   insurance   policy,    (ii)
                                            incurred on defaulted Mortgage Loans
                                            as to which  there  was fraud in the
                                            origination  of such Mortgage  Loans
                                            or  (iii)  attributable  to  certain
                                            actions  which  may  be  taken  by a
                                            bankruptcy  court in connection with
                                            a   Mortgage   Loan,   including   a
                                            reduction by a  bankruptcy  court of
                                            the  principal  balance  of  or  the
                                            interest  rate on a Mortgage Loan or
                                            an extension of its maturity,  up to
                                            the  respective   limits   described
                                            below,  will not be allocated to the
                                            Class A Subclasses until the date on
                                            which the Stated Amount of the Class
                                            M and Class B  CitiCertificates  has
                                            been    reduced    to   zero    (the
                                            "Subordination   Depletion   Date").
                                            Upon  the  Subordination   Depletion
                                            Date, the Non-PO  Percentage of such
                                            Realized  Losses  will be  allocated
                                            pro   rata   among   the   Class   A
                                            CitiCertificates   (other  than  the
                                            Class A-6 CitiCertificates) based on
                                            their outstanding  Stated Amounts in
                                            each  case  for so long as they  are
                                            outstanding.

                                         Prior to  the  Subordination  Depletion
                                            Date,    the    applicable    Non-PO
                                            Percentage of such  Realized  Losses
                                            will be allocated first to the Class
                                            B  Subclasses  in reverse  numerical
                                            order  until  the  Stated  Amount of
                                            each such Class B Subclass  has been
                                            reduced  to  zero,  and  then to the
                                            Class M  CitiCertificates  until the
                                            Stated   Amount   thereof  has  been
                                            reduced to zero.  The  applicable PO
                                            Percentage  of Realized  Losses will
                                            be   allocated   to  the  Class  A-6
                                            CitiCertificates as a PO Loss Amount
                                            but such loss  allocation  will give
                                            rise to the  right  to  receive,  in
                                            respect    of    the    Class    A-6
                                            CitiCertificates,  reimbursement  of
                                            losses so  allocated  out of certain
                                            funds otherwise distributable on the
                                            Class     M     and      Class     B
                                            CitiCertificates.  As a result,  any
                                            such PO Loss Amounts will ultimately
                                            be borne by the Class B  Subclasses,
                                            in reverse numerical order, and then
                                            by the Class M CitiCertificates,  in
                                            each  case  for so long as they  are
                                            outstanding.

                                         With respect to any  Distribution  Date
                                            subsequent to the first Distribution
                                            Date, the availability of the credit
                                            enhancement  provided by the Class M
                                            and Class B CitiCertificates will be
                                            affected by the prior  reduction  of
                                            the Stated Amount of the Class M and
                                            Class  B   CitiCertificates,   which
                                            reduction  will  result from (i) the
                                            prior  allocation  of  losses to the
                                            Class M and Class B CitiCertificates
                                            due to the  liquidation of defaulted
                                            Mortgage Loans, including losses due
                                            to Special  Hazards and fraud losses
                                            up to the respective limits referred
                                            to below,  (ii) the prior allocation
                                            of bankruptcy losses up to the limit
                                            referred  to  below  and  (iii)  the
                                            prior  receipt of  distributions  in
                                            reduction   of   Stated   Amount  by
                                            holders  of the  Class M and Class B
                                            CitiCertificates.  As of the Closing
                                            Date,    the    amount   of   losses
                                            attributable  to  Special   Hazards,
                                            fraud  and  bankruptcy  that will be
                                            absorbed  first  by  holders  of the
                                            Unoffered Class B  CitiCertificates,
                                            second by the holders of the Offered
                                            Class B CitiCertificates (in reverse
                                            numerical  order)  and  then  by the
                                            holders     of    the     Class    M
                                            CitiCertificates       will       be
                                            approximately   1.17%,   1.00%   and
                                            0.05%, respectively,  of the Initial
                                            Mortgage Loan  Balance.  The maximum
                                            amount  of  losses  attributable  to
                                            Special Hazard,  fraud or bankruptcy
                                            that  will  be  absorbed  solely  by
                                            holders  of the  Class M and Class B
                                            CitiCertificates   will   be   those
                                            amounts required by the rating

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                                      S-9
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                                            agency (or  rating  agencies) rating
                                            the Offered  CitiCertificates  as  a
                                            condition  to  the  issuance  of the
                                            ratings   set  forth   below   under
                                            "--Certificate  Ratings."  If losses
                                            due to  Special  Hazards,  fraud  or
                                            bankruptcy   exceed   any  of   such
                                            respective   amounts  prior  to  the
                                            Subordination  Depletion  Date,  the
                                            applicable  Non-PO Percentage of the
                                            principal  portion  of  such  losses
                                            will be  shared  pro  rata  based on
                                            their   then   outstanding    Stated
                                            Amounts     by    the     Class    A
                                            CitiCertificates   (other  than  the
                                            Class A-6  CitiCertificates) and the
                                            Class  M  CitiCertificates  and  the
                                            Class   B   Subclasses,    and   the
                                            applicable   PO  Percentage  of  the
                                            principal  portion  of  such  losses
                                            will be  allocated  to the Class A-6
                                            CitiCertificates.    The    interest
                                            portion  of  such   losses  will  be
                                            allocated   pro   rata   among   the
                                            CitiCertificates   (other  than  the
                                            Class A-6  CitiCertificates),  based
                                            on   the   respective   amounts   of
                                            interest  accrued  thereon  for such
                                            Distribution  Date.  The  applicable
                                            Non-PO  Percentage  of the principal
                                            portion  of  losses  due to  Special
                                            Hazards,    fraud   or    bankruptcy
                                            allocated    to    the    Class    A
                                            CitiCertificates   (other  than  the
                                            Class A-6 CitiCertificates)  will be
                                            allocated pro rata among the Class A
                                            Subclasses   based  on  their   then
                                            outstanding  Stated  Amounts.  After
                                            the  Subordination  Depletion  Date,
                                            the applicable  Non-PO Percentage of
                                            the principal  portion of losses due
                                            to   Special   Hazards,   fraud   or
                                            bankruptcy  will  be  allocated  pro
                                            rata  to  the  Class  A   Subclasses
                                            (other      than      Class      A-6
                                            CitiCertificates)   based  on  their
                                            then outstanding  Stated Amounts and
                                            the  applicable PO Percentage of the
                                            principal  portion  of  such  losses
                                            will be  allocated  to the Class A-6
                                            CitiCertificates,  and the  interest
                                            portion  of  such   losses  will  be
                                            shared  pro rata by the  Class A and
                                            Unoffered         Class         A-IO
                                            CitiCertificates,  as the  case  may
                                            be,  as   described   above.   Under
                                            certain  circumstances,  the  limits
                                            set forth above may be reduced.  See
                                            "Description    of    the    Offered
                                            CitiCertificates--
                                            Subordination--Allocation of Losses"
                                            in this Prospectus Supplement.

PRIORITY OF DISTRIBUTIONS ..........     On each  Distribution  Date,  the  Pool
                                            Distribution    Amount    will    be
                                            distributed  to  pay  the  following
                                            amounts  in the  following  order of
                                            priority:  (1) the Class A  Interest
                                            Amount    and   the    Distributable
                                            Unoffered    Class   A-IO   Interest
                                            Amount,  pro  rata,  (2) any Class A
                                            Unpaid  Interest  Shortfall  and any
                                            Unoffered Class A-IO Unpaid Interest
                                            Shortfall, pro rata, (3) the Class A
                                            Principal  Distribution  Amount, (4)
                                            any Unpaid PO Loss Amounts (but only
                                            to the extent of  Available  PO Loss
                                            Funds),  (5) the  Class  M  Interest
                                            Amount,   (6)  any  Class  M  Unpaid
                                            Interest Shortfall,  (7) the Class M
                                            Principal  Distribution  Amount, (8)
                                            the Class B-1 Interest  Amount,  (9)
                                            any   Class  B-1   Unpaid   Interest
                                            Shortfall,   (10)  the   Class   B-1
                                            Principal  Distribution Amount, (11)
                                            the Class B-2 Interest Amount,  (12)
                                            any   Class  B-2   Unpaid   Interest
                                            Shortfall,   (13)  the   Class   B-2
                                            Principal  Distribution  Amount  and
                                            (14) to the  Class B  Subclasses  of
                                            the      Unoffered      Class      B
                                            CitiCertificates,   sequentially  in
                                            numerical order,  such that no Class
                                            B Subclass of the Unoffered  Class B
                                            CitiCertificates   with   a   higher
                                            numerical  designation  receives any
                                            distribution  in reduction of Stated
                                            Amount  or in  respect  of  interest
                                            before each Class B Subclass  with a
                                            lower numerical designation receives
                                            its  required   distributions.   The
                                            amount  otherwise  distributable  in
                                            reduction  of  Stated  Amount of the
                                            Class B and Class M CitiCertificates
                                            will  be   reduced   to  the  extent
                                            necessary  to  reimburse  Unpaid  PO
                                            Loss Amounts.

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                                      S-10
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DISTRIBUTIONS OF INTEREST ..........     Each of the Class A  Subclasses  (other
                                            than       the       Class       A-6
                                            CitiCertificates),   the   Class   M
                                            CitiCertificates   and  the  Offered
                                            Class  B   Subclasses   will  accrue
                                            interest  on its  respective  Stated
                                            Amount at the Stated  Rate per annum
                                            specified  on the cover page hereof,
                                            net   of   (i)   any   Non-Supported
                                            Interest  Shortfalls,  as  described
                                            below, and (ii) the interest portion
                                            of certain losses  allocated to such
                                            Class A  Subclass  (other  than  the
                                            Class  A-6  CitiCertificates),   the
                                            Class  M  CitiCertificates  and  the
                                            Offered   Class  B   Subclasses   as
                                            described     below     and    under
                                            "Description    of    the    Offered
                                            CitiCertificates--Distributions   of
                                            Interest"    in   this    Prospectus
                                            Supplement  (in the  aggregate,  for
                                            the  Class A  CitiCertificates,  the
                                            "Class A Interest  Amount",  for the
                                            Class M CitiCertificates, the "Class
                                            M  Interest  Amount",  for the Class
                                            B-1 CitiCertificates, the "Class B-1
                                            Interest Amount",  for the Class B-2
                                            CitiCertificates,   the  "Class  B-2
                                            Interest   Amount",   and   in   the
                                            aggregate,  for the Offered  Class B
                                            CitiCertificates, the "Offered Class
                                            B Interest  Amount").  The Class A-6
                                            CitiCertificates  are principal-only
                                            certificates   and   will  not  bear
                                            interest.     Interest    on    each
                                            interest-bearing             Offered
                                            CitiCertificate        will       be
                                            distributable    monthly   on   each
                                            Distribution   Date   commencing  in
                                            March  1998 to  holders of record on
                                            the applicable Record Date.

                                         On each  Distribution  Date  an  amount
                                            equal to the  Unoffered  Class  A-IO
                                            Interest    Amount   (net   of   any
                                            Non-Supported   Interest   Shortfall
                                            allocated  to  the  Unoffered  Class
                                            A-IO  CitiCertificates  and less the
                                            pro  rata  share  of  the   interest
                                            portion of any Excess Special Hazard
                                            Losses,   Excess  Fraud  Losses  and
                                            Excess  Bankruptcy  Losses allocated
                                            to   the   Unoffered    Class   A-IO
                                            CitiCertificates,   and   after  the
                                            Subordination  Depletion  Date,  the
                                            pro  rata  share  of  the   interest
                                            portion    of    any    losses    or
                                            delinquencies   allocated   to   the
                                            Unoffered         Class         A-IO
                                            CitiCertificates)               (the
                                            "Distributable  Unoffered Class A-IO
                                            Interest     Amount")     will    be
                                            distributed   to   holders   of  the
                                            Unoffered         Class         A-IO
                                            CitiCertificates.   The   "Unoffered
                                            Class A-IO Interest  Amount" for any
                                            Distribution  Date  will be equal to
                                            the  excess of  interest  accrued on
                                            the Premium  Mortgage Loans over the
                                            sum  of  (i)  the   product  of  the
                                            Servicing Fee rate (0.25% per annum)
                                            and the aggregate  Adjusted  Balance
                                            of the  Premium  Mortgage  Loans and
                                            (ii) the  product  of the  aggregate
                                            Adjusted   Balance  of  the  Premium
                                            Mortgage Loans and 6.75% per annum.

                                         Interest  will  accrue  on the  Offered
                                            CitiCertificates   from  the   first
                                            through  the last  day of the  month
                                            preceding  the  month  of  the  then
                                            current Distribution Date (each such
                                            period,    an   "Interest    Accrual
                                            Period").  Interest  accrued  on the
                                            Offered  CitiCertificates during any
                                            Interest   Accrual  Period  will  be
                                            calculated  on the  assumption  that
                                            reductions in the Stated Amount made
                                            on the Offered  CitiCertificates and
                                            the losses allocated to such Offered
                                            CitiCertificates    were   made   or
                                            allocated  on  the  day  immediately
                                            following   the   last  day  of  the
                                            preceding  Interest  Accrual Period,
                                            and    not    on    the    following
                                            Distribution Date when actually made
                                            or allocated.  See  "Description  of
                                            the                          Offered
                                            CitiCertificates--Distributions   of
                                            Interest"    in   this    Prospectus
                                            Supplement.

                                         The effective yield to  holders  of the
                                            Offered   CitiCertificates  will  be
                                            reduced  below the  yield  otherwise
                                            produced  by the  respective  Stated

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                                      S-11
<PAGE>

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                                            Rates thereof because  distributions
                                            of  interest  and  distributions  in
                                            reduction    of    Stated     Amount
                                            distributable  with  respect  to  an
                                            Interest  Accrual Period will not be
                                            distributed  until  the  25th day of
                                            the month  following the end of such
                                            Interest   Accrual  Period  and  the
                                            amount distributable in reduction of
                                            Stated   Amount   on   the   related
                                            Distribution  Date  will not  accrue
                                            interest during such delay.

                                         To the  extent  that   collections   of
                                            interest from  Mortgagors on account
                                            of   full   or   partial   principal
                                            prepayments  on  Mortgage  Loans are
                                            less than one full month's  interest
                                            at   the   applicable    Note   Rate
                                            ("Prepayment Interest  Shortfalls"),
                                            such Prepayment  Interest Shortfalls
                                            will be paid by the  Servicer to the
                                            extent  of the  "Compensating  Cap,"
                                            which  will  be an  amount  for  any
                                            Distribution   Date   equal  to  the
                                            lesser  of  (a)  the  amount  of the
                                            Servicing  Fee received with respect
                                            to the related Distribution Date and
                                            (b) the  product of (x)  one-twelfth
                                            of the Pool  Adjusted  Balance as of
                                            the preceding  Distribution Date and
                                            (y) 0.125%.

                                         The aggregate    Prepayment    Interest
                                            Shortfalls  related to the  Mortgage
                                            Loans with respect to a Distribution
                                            Date in excess  of the  Compensating
                                            Cap  (the  "Non-Supported   Interest
                                            Shortfall")  will be  allocated  pro
                                            rata   among  the   CitiCertificates
                                            (other    than   the    Class    A-6
                                            CitiCertificates),   based   on  the
                                            respective   amounts   of   interest
                                            accrued     thereon     for     such
                                            Distribution Date.

                                         In the   unlikely   event   that  on  a
                                            particular  Distribution  Date prior
                                            to the Subordination Depletion Date,
                                            the Pool Distribution Amount is less
                                            than   the   aggregate   amount   of
                                            interest   accrued   (net   of   any
                                            Non-Supported Interest Shortfall and
                                            the  interest   portion  of  certain
                                            losses  allocable  to  the  Class  A
                                            Subclasses  and the Unoffered  Class
                                            A-IO    CitiCertificates)   on   the
                                            Unoffered         Class         A-IO
                                            CitiCertificates  and  each  Class A
                                            Subclass (the shortfall allocable to
                                            each  such  Class  A  Subclass,  its
                                            respective    "Class   A    Subclass
                                            Interest  Shortfall  Amount"),   the
                                            aggregate  amount  of the  shortfall
                                            allocable  to the Class A Subclasses
                                            (the   "Class  A   Unpaid   Interest
                                            Shortfall")    and   the   shortfall
                                            allocable  to  the  Unoffered  Class
                                            A-IO      CitiCertificates      (the
                                            "Unoffered    Class   A-IO    Unpaid
                                            Interest Shortfall") will be carried
                                            forward  and  added  to  the  amount
                                            distributable  to holders of Class A
                                            and     Unoffered     Class     A-IO
                                            CitiCertificates  until distribution
                                            thereof is made as  provided  in the
                                            succeeding  paragraph.  Any  Class A
                                            Unpaid  Interest  Shortfall  will be
                                            allocated    among   the   Class   A
                                            Subclasses  pro rata on the basis of
                                            the  respective  amounts  of accrued
                                            interest  thereon.  No interest will
                                            accrue on the  amount of any Class A
                                            Unpaid    Interest    Shortfall   or
                                            Unoffered Class A-IO Unpaid Interest
                                            Shortfall.

                                         On each Distribution Date, funds in the
                                            Certificate  Account  available  for
                                            payment   of  any   Class  A  Unpaid
                                            Interest   Shortfall   or  Unoffered
                                            Class A-IO Unpaid Interest Shortfall
                                            will be  allocated  among  the  then
                                            outstanding  Class A Subclasses  and
                                            the     Unoffered     Class     A-IO
                                            CitiCertificates    pro    rata   in
                                            accordance  with  their   respective
                                            unpaid  Class  A  Subclass  Interest
                                            Shortfall  Amounts and the Unoffered
                                            Class A-IO Unpaid Interest Shortfall
                                            immediately     prior     to    such
                                            Distribution Date.

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                                      S-12
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                                         In the  event  that  on  a   particular
                                            Distribution    Date,    the    Pool
                                            Distribution  Amount, net of amounts
                                            distributable   on   the   Class   A
                                            CitiCertificates  and the  Unoffered
                                            Class A-IO CitiCertificates, is less
                                            than   the   aggregate   amount   of
                                            interest   accrued   (net   of   any
                                            Non-Supported Interest Shortfall and
                                            the  interest   portion  of  certain
                                            losses  allocable  to  the  Class  M
                                            CitiCertificates)  on  the  Class  M
                                            CitiCertificates,   such   shortfall
                                            (the   "Class  M   Unpaid   Interest
                                            Shortfall")  will be carried forward
                                            and    added    to    the     amount
                                            distributable   to  holders  of  the
                                            Class   M   CitiCertificates   until
                                            distribution   thereof  is  made  as
                                            described herein under  "Description
                                            of            the            Offered
                                            CitiCertificates--Distributions   of
                                            Interest"   or  until  the  Class  M
                                            Stated  Amount  has been  reduced to
                                            zero. No interest will accrue on the
                                            amount   of  any   Class  M   Unpaid
                                            Interest Shortfall.

                                         In the  event  that  on  a   particular
                                            Distribution    Date,    the    Pool
                                            Distribution  Amount, net of amounts
                                            distributable   on  the   Class   A,
                                            Unoffered  Class  A-IO  and  Class M
                                            CitiCertificates,  is less  than the
                                            aggregate amount of interest accrued
                                            (net of any  Non-Supported  Interest
                                            Shortfall  and the interest  portion
                                            of certain  losses  allocable to the
                                            Class B-1  CitiCertificates)  on the
                                            Class  B-1  CitiCertificates,   such
                                            shortfall  (the  "Class  B-1  Unpaid
                                            Interest Shortfall") will be carried
                                            forward  and  added  to  the  amount
                                            distributable   to  holders  of  the
                                            Class  B-1  CitiCertificates   until
                                            distribution   thereof  is  made  as
                                            described herein under  "Description
                                            of            the            Offered
                                            CitiCertificates--Distributions   of
                                            Interest"  or until  the  Class  B-1
                                            Stated  Amount  has been  reduced to
                                            zero. No interest will accrue on the
                                            amount  of  any  Class  B-1   Unpaid
                                            Interest Shortfall.

                                         In the  event  that  on  a   particular
                                            Distribution    Date,    the    Pool
                                            Distribution  Amount, net of amounts
                                            distributable   on  the   Class   A,
                                            Unoffered  Class  A-IO,  Class M and
                                            Class B-1 CitiCertificates,  is less
                                            than   the   aggregate   amount   of
                                            interest   accrued   (net   of   any
                                            Non-Supported Interest Shortfall and
                                            the  interest   portion  of  certain
                                            losses  allocable  to the  Class B-2
                                            CitiCertificates)  on the  Class B-2
                                            CitiCertificates,   such   shortfall
                                            (the  "Class  B-2  Unpaid   Interest
                                            Shortfall")  will be carried forward
                                            and    added    to    the     amount
                                            distributable   to  holders  of  the
                                            Class  B-2  CitiCertificates   until
                                            distribution   thereof  is  made  as
                                            described herein under  "Description
                                            of            the            Offered
                                            CitiCertificates--Distributions   of
                                            Interest"  or until  the  Class  B-2
                                            Stated  Amount  has been  reduced to
                                            zero. No interest will accrue on the
                                            amount  of  any  Class  B-2   Unpaid
                                            Interest Shortfall.

                                         The Class B-1 Unpaid Interest Shortfall
                                            and   Class  B-2   Unpaid   Interest
                                            Shortfall   are  also   collectively
                                            referred to as the "Offered  Class B
                                            Subclass Unpaid Interest Shortfall."

DISTRIBUTIONS IN REDUCTION OF STATED
 AMOUNT OF THE OFFERED
 CITICERTIFICATES ..................     Distributions  in  reduction  of Stated
                                            Amount   will   be   made   on  each
                                            Distribution  Date to  each  Class A
                                            Subclass,    to    the    Class    M
                                            CitiCertificates and to each Offered
                                            Class B Subclass  then  entitled  to
                                            receive   such    distributions   in
                                            accordance  with the  priorities set
                                            forth below.  Amounts distributed in
                                            reduction  of  Stated  Amount of any
                                            Class A Subclass  will be  allocated
                                            pro rata to all  CitiCertificates of
                                            such

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                                      S-13
<PAGE>

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                                            Class A Subclass until the aggregate
                                            amount  of  such  distributions  has
                                            reduced  the  Stated  Amount of each
                                            such  Class  A  Subclass   to  zero.
                                            Amounts  distributed in reduction of
                                            Stated   Amount   of  the   Class  M
                                            CitiCertificates  will be  allocated
                                            pro    rata    to   all    Class   M
                                            CitiCertificates until the aggregate
                                            amount  of  such  distributions  has
                                            reduced the Class M Stated Amount to
                                            zero.    Amounts    distributed   in
                                            reduction  of  Stated  Amount of any
                                            Offered  Class  B  Subclass  will be
                                            allocated    pro    rata    to   all
                                            CitiCertificates   of  such  Offered
                                            Class B Subclass until the aggregate
                                            amount  of  such  distributions  has
                                            reduced  the  Stated  Amount of such
                                            Offered Class B Subclass to zero.

                                         On each  Distribution Date prior to the
                                            Subordination  Depletion  Date,  the
                                            Class   A   Principal   Distribution
                                            Amount will be allocated as follows:
                                            first,  the  Class  A  PO  Principal
                                            Amount  for such  Distribution  Date
                                            will be  allocated  to the Class A-6
                                            CitiCertificates  until  the  Stated
                                            Amount  thereof has been  reduced to
                                            zero;  second,  the  Group II Non-PO
                                            Principal  Amount will be  allocated
                                            to the  Class  A-5  CitiCertificates
                                            until the Stated Amount  thereof has
                                            been reduced to zero; and third, the
                                            Group I Non-PO Principal Amount will
                                            be   allocated   (a)   concurrently,
                                            approximately  96.2648937362% to the
                                            Class   A-1   CitiCertificates   and
                                            approximately  3.7351062638%  to the
                                            Class A-2 CitiCertificates until the
                                            Stated   Amount  of  the  Class  A-1
                                            CitiCertificates has been reduced to
                                            zero,       (b)        concurrently,
                                            approximately  96.2648937362% to the
                                            Class   A-3   CitiCertificates   and
                                            approximately  3.7351062638%  to the
                                            Class A-2 CitiCertificates until the
                                            Stated   Amount  of  the  Class  A-2
                                            CitiCertificates has been reduced to
                                            zero,   (c)   to   the   Class   A-3
                                            CitiCertificates  until  the  Stated
                                            Amount  thereof has been  reduced to
                                            zero  and  (d)  to  the   Class  A-4
                                            CitiCertificates  until  the  Stated
                                            Amount  thereof has been  reduced to
                                            zero.

                                         In addition,  any Unpaid PO Loss Amount
                                            outstanding shall be paid in respect
                                            of the Class  A-6  CitiCertificates,
                                            but only to the extent of  Available
                                            PO Loss  Funds.  "Available  PO Loss
                                            Funds"  for  any  Distribution  Date
                                            shall  equal  the Pool  Distribution
                                            Amount  as  reduced  by the  Class A
                                            Interest Amount,  the  Distributable
                                            Unoffered    Class   A-IO   Interest
                                            Amount,  any Class A Unpaid Interest
                                            Shortfalls, any Unoffered Class A-IO
                                            Unpaid  Interest   Shortfalls,   the
                                            Class   A   Principal   Distribution
                                            Amount,  the Class M Interest Amount
                                            and the Class B Interest Amount. Any
                                            Available  PO Loss Funds  applied to
                                            pay  Unpaid  PO  Loss  Amounts  will
                                            first  reduce the  amount  otherwise
                                            distributable in reduction of Stated
                                            Amount of the Class B Subclasses  in
                                            reverse  numerical  order,  and then
                                            will  reduce  the  amount  otherwise
                                            distributable  in  reduction  of the
                                            Class   M   Stated    Amount.    See
                                            "Description    of    the    Offered
                                            CitiCertificates--Distributions   in
                                            Reduction of Stated  Amount" in this
                                            Prospectus Supplement.

                                         The holders   of    the    Class    A-5
                                            CitiCertificates    will    not   be
                                            entitled      to     receive     any
                                            distributions in reduction of Stated
                                            Amount  prior  to  the  Distribution
                                            Date in March 2003, and prior to the
                                            Distribution  Date  in  March  2007,
                                            will  receive  a  disproportionately
                                            small portion of principal  payments
                                            on the  Mortgage  Loans,  unless the
                                            Stated  Amounts of all other Class A
                                            Subclasses (other than the Class A-6
                                            CitiCertificates)  have been reduced
                                            to   zero   or   the   Subordination
                                            Depletion  Date has  occurred.  As a
                                            result,  the  weighted  average life
                                            will  

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                                      S-14
<PAGE>

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                                            be     longer,    and    could    be
                                            significantly longer, than would be
                                            the case    if   the    Class    A-5
                                            CitiCertificates  received their pro
                                            rata share of the Class A Percentage
                                            and Class A Prepayment Percentage of
                                            the   Non-PO   Percentage   of   all
                                            principal  payments  received on the
                                            Mortgage Loans.  See "Description of
                                            the                          Offered
                                            CitiCertificates--Distributions   in
                                            Reduction of Stated  Amount" in this
                                            Prospectus Supplement.

                                         The amount to  be  distributed  on  any
                                            Distribution  Date in  reduction  of
                                            Stated   Amount   of  the   Class  M
                                            CitiCertificates   (the   "Class   M
                                            Principal Distribution Amount") will
                                            be  the   lesser  of  (i)  the  Pool
                                            Distribution       Amount      after
                                            distribution    of    all    amounts
                                            distributable  on such  Distribution
                                            Date on the  Class  A and  Unoffered
                                            Class A-IO  CitiCertificates and all
                                            interest  distributable on the Class
                                            M  CitiCertificates   and  (ii)  the
                                            Class M Optimal Principal Amount.

                                         The amount to  be  distributed  on  any
                                            Distribution  Date in  reduction  of
                                            Stated Amount of any Offered Class B
                                            Subclass   (the  "Class  B  Subclass
                                            Principal Distribution Amount") will
                                            be  the   lesser  of  (i)  the  Pool
                                            Distribution       Amount      after
                                            distribution    of    all    amounts
                                            distributable  on such  Distribution
                                            Date on the Class A, Unoffered Class
                                            A-IO  and  Class M  CitiCertificates
                                            and all  amounts  senior in priority
                                            to   distribution  in  reduction  of
                                            Stated  Amount of such Offered Class
                                            B Subclass  as set forth above under
                                            "Priority of Distributions" and (ii)
                                            the Offered Class B Subclass Optimal
                                            Principal  Amount  for such  Offered
                                            Class  B   Subclass.   The  Class  B
                                            Subclass   Principal    Distribution
                                            Amount    for    the    Class    B-1
                                            CitiCertificates   and   Class   B-2
                                            CitiCertificates  are the "Class B-1
                                            Principal  Distribution  Amount" and
                                            the     "Class     B-2     Principal
                                            Distribution Amount," respectively.

                                         The "Pool Distribution  Amount"  for  a
                                            particular Distribution Date will be
                                            equal  to  the   aggregate   of  all
                                            previously  undistributed amounts of
                                            principal  (including  any  full  or
                                            partial  principal  prepayments) and
                                            interest in respect of the  Mortgage
                                            Loans  received and posted after the
                                            Cut-Off  Date and before the related
                                            Determination Date (including,  with
                                            respect to such  Distribution  Date,
                                            amounts  advanced by the Servicer or
                                            the  Trustee   (in  its   individual
                                            capacity),  advanced from amounts in
                                            the  Certificate  Account or paid by
                                            the   Servicer   with   respect   to
                                            Prepayment   Interest   Shortfalls),
                                            excluding  in each case (i) payments
                                            due on or before the  Cut-Off  Date,
                                            (ii)  full  or   partial   principal
                                            prepayments  posted during the month
                                            of such  Distribution  Date  and any
                                            related    payments    of   interest
                                            representing  all  or a  portion  of
                                            interest   for  such  month,   (iii)
                                            payments representing early receipts
                                            of scheduled  principal and interest
                                            due  subsequent  to the first day of
                                            the month in which such Distribution
                                            Date  occurs,  (iv) the  portion  of
                                            interest  received on each  Mortgage
                                            Loan representing the Servicing Fee,
                                            (v) the  portion of the  liquidation
                                            proceeds of defaulted Mortgage Loans
                                            representing  the  Servicing Fee and
                                            (vi)  receipts  of  overdue  amounts
                                            with  respect to which the  Servicer
                                            or the  Trustee  (in its  individual
                                            capacity)   has  made  advances  and
                                            certain other  amounts  reimbursable
                                            to the Servicer. See "Description of
                                            Certificates--Distributions       to
                                            Certificateholders--General"  in the
                                            Prospectus.

                                         The allocation of  a   disproportionate
                                            amount of  prepayments  and  certain
                                            unscheduled  recoveries as described
                                            above     to     the     Class     A

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                                      S-15
<PAGE>

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                                            CitiCertificates (other than, to the
                                            extent described  herein,  the Class
                                            A-5 and Class A-6  CitiCertificates)
                                            in reduction  of Stated  Amount will
                                            have the effect of accelerating  the
                                            amortization   of   such   Class   A
                                            CitiCertificates   while,   in   the
                                            absence    of    Realized    Losses,
                                            increasing the respective percentage
                                            interest in the Trust  evidenced  by
                                            the    Class    M   and    Class   B
                                            CitiCertificates.   Increasing   the
                                            respective  percentage  interest  of
                                            the    Class    M   and    Class   B
                                            CitiCertificates relative to that of
                                            the  Class  A  CitiCertificates   is
                                            intended     to     preserve     the
                                            availability  of  the  subordination
                                            provided  by the Class M and Class B
                                            CitiCertificates.

                                         Scheduled   payments  on  the  Mortgage
                                            Loans  will  be  sufficient  to make
                                            timely  distributions of interest on
                                            the Offered  CitiCertificates and to
                                            reduce  the  Stated  Amount  of each
                                            Class  A   Subclass,   the  Class  M
                                            CitiCertificates  and  each  Offered
                                            Class B  Subclass  to zero not later
                                            than its Last Scheduled Distribution
                                            Date  set  forth on the  cover  page
                                            hereof.    See    "Description    of
                                            Certificates--Distributions       to
                                            Certificateholders"      in      the
                                            Prospectus.

                                         In the event  that on any  Distribution
                                            Date,    the    Current    Class   M
                                            Subordination Level is less than the
                                            Class M  Subordination  Level on the
                                            Closing  Date,   then  the  Class  B
                                            CitiCertificates    will    not   be
                                            entitled  to  any  distributions  in
                                            reduction  of Stated  Amount on such
                                            Distribution   Date   and  all  such
                                            distributions    will   instead   be
                                            allocated in reduction of the Stated
                                            Amount     of    the     Class     M
                                            CitiCertificates. The "Current Class
                                            M   Subordination   Level"   is  the
                                            percentage  obtained by dividing the
                                            Class B  Stated  Amount  by the Pool
                                            Adjusted  Balance,  each  as of  the
                                            immediately  preceding  Distribution
                                            Date  (after  giving  effect  to any
                                            distributions in reduction of Stated
                                            Amount  and  the  allocation  of any
                                            losses  on such  date).  The Class M
                                            Subordination  Level on the  Closing
                                            Date is expected to be between 1.25%
                                            and 3.25%.

                                         In the event  that on any  Distribution
                                            Date,    the    Current    Class   M
                                            Subordination    Level   equals   or
                                            exceeds its original  percentage but
                                            the Current Class B-1  Subordination
                                            Level  is less  than the  Class  B-1
                                            Subordination  Level on the  Closing
                                            Date, then the Class B-2, Class B-3,
                                            Class     B-4    and    Class    B-5
                                            CitiCertificates    will    not   be
                                            entitled  to  any  distributions  in
                                            reduction  of Stated  Amount on such
                                            Distribution   Date   and  all  such
                                            distributions    will   instead   be
                                            allocated in reduction of the Stated
                                            Amounts of the Class M and Class B-1
                                            CitiCertificates. The "Current Class
                                            B-1  Subordination   Level"  is  the
                                            percentage  obtained by dividing the
                                            aggregate   Stated  Amounts  of  the
                                            Class B-2,  Class B-3, Class B-4 and
                                            Class  B-5  CitiCertificates  by the
                                            Pool  Adjusted  Balance,  each as of
                                            the      immediately       preceding
                                            Distribution   Date  (after   giving
                                            effect  to  any   distributions   in
                                            reduction  of Stated  Amount and the
                                            allocation  of any  losses  on  such
                                            date).  The Class B-1  Subordination
                                            Level   on  the   Closing   Date  is
                                            expected  to be  between  0.90%  and
                                            1.90%.

                                         In the event  that on any  Distribution
                                            Date,  the Current Class M and Class
                                            B-1  Subordination  Levels  equal or
                                            exceed  their  original  percentages
                                            but   the    Current    Class    B-2
                                            Subordination Level is less than the
                                            Class B-2 Subordination Level on the
                                            Closing  Date,  then the Class  B-3,
                                            Class     B-4    and    Class    B-5
                                            CitiCertificates    will    not   be
                                            entitled  to  any  distributions  in
                                            reduction  of Stated  Amount on such
                                            Distribution  Date 

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                                      S-16
<PAGE>

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                                            and all of such  distributions  will
                                            instead be allocated in reduction of
                                            the  Stated  Amounts of the Class M,
                                            Class     B-1    and    Class    B-2
                                            CitiCertificates. The "Current Class
                                            B-2  Subordination   Level"  is  the
                                            percentage  obtained by dividing the
                                            aggregate   Stated  Amounts  of  the
                                            Class  B-3,  Class B-4 and Class B-5
                                            CitiCertificates    by   the    Pool
                                            Adjusted  Balance,  each  as of  the
                                            immediately  preceding  Distribution
                                            Date  (after  giving  effect  to any
                                            distributions in reduction of Stated
                                            Amount  and  the  allocation  of any
                                            losses on such date).  The Class B-2
                                            Subordination  Level on the  Closing
                                            Date is expected to be between 0.65%
                                            and 1.05%.

                                         In addition,  in the case of the  Class
                                            B-3 or Class  B-4  CitiCertificates,
                                            if  on  any  Distribution  Date  the
                                            percentage  obtained by dividing the
                                            then-outstanding  Stated  Amounts of
                                            the Class B  Subclasses  with higher
                                            numerical  designations  by the Pool
                                            Adjusted  Balance  is less than such
                                            percentage   was  upon  the  Closing
                                            Date,   then  such  Subclasses  with
                                            higher numerical  designations  will
                                            not be entitled to  distributions in
                                            reduction  of Stated  Amount on such
                                            Distribution   Date   and  all  such
                                            distributions    will   instead   be
                                            allocated    to    the    Class    M
                                            CitiCertificates  and  the  Class  B
                                            Subclasses   with  lower   numerical
                                            designations.

                                         On any  Distribution  Date on or  after
                                            the  Subordination  Depletion  Date,
                                            funds available for  distribution in
                                            reduction  of  Stated  Amount of the
                                            Class  A  CitiCertificates  will  be
                                            allocated    to    the    Class    A
                                            CitiCertificates   (other  than  the
                                            Class A-6 CitiCertificates),  on the
                                            one  hand,  and  in  respect  of the
                                            Class A-6  CitiCertificates,  on the
                                            other,  pro rata on the basis of the
                                            amounts  of (i) the sum of the Group
                                            I Non-PO  Principal  Amount  and the
                                            Group II Non-PO Principal Amount and
                                            (ii)  the   Class  A  PO   Principal
                                            Amount,                respectively,
                                            notwithstanding    the    priorities
                                            described  in the  second  paragraph
                                            under   this   heading.   Under  the
                                            circumstances   described   in  this
                                            paragraph,  the amount  allocated to
                                            each  Class  A   Subclass   will  be
                                            distributed  pro rata among  holders
                                            of  CitiCertificates of such Class A
                                            Subclass.

LAST SCHEDULED DISTRIBUTION DATE ...     The Last Scheduled   Distribution  Date
                                            for  the  Offered   CitiCertificates
                                            coincides with the date on which the
                                            last  distribution in respect of the
                                            Mortgage  Loans is  scheduled  to be
                                            made.   See   "Description   of  the
                                            Offered   CitiCertificates--Weighted
                                            Average   Lives   of   the   Offered
                                            CitiCertificates" in this Prospectus
                                            Supplement.   Since   the   rate  of
                                            payment  (including  prepayments) of
                                            principal on the Mortgage  Loans can
                                            be expected to exceed the  scheduled
                                            rate of  payments,  and could exceed
                                            the scheduled  rate by a substantial
                                            amount,     the     actual     final
                                            Distribution  Date  for the  Offered
                                            CitiCertificates may be earlier, and
                                            could be substantially earlier, than
                                            the  Last   Scheduled   Distribution
                                            Date.

                                         The Offered    CitiCertificates     are
                                            subject to early termination by CMSI
                                            as described  under  "Description of
                                            the    Offered    CitiCertificates--
                                            Optional    Termination"   in   this
                                            Prospectus Supplement.

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

                                      S-17
<PAGE>

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PREPAYMENT AND YIELD
 CONSIDERATIONS ....................     The yield  to maturity   and   weighted
                                            average   lives   of   the   Offered
                                            CitiCertificates  will be  sensitive
                                            in varying  degrees to,  among other
                                            things,  the rate of  prepayment  of
                                            the Mortgage  Loans,  the allocation
                                            of   such    prepayments    to   the
                                            CitiCertificates, and the timing and
                                            extent of losses, if any,  allocated
                                            to    the    CitiCertificates.    No
                                            representation is made as to whether
                                            the  Mortgage  Loans will  prepay at
                                            any     particular     rate.     See
                                            "Description    of    the    Offered
                                            CitiCertificates--Weighted   Average
                                            Lives      of      the       Offered
                                            CitiCertificates"  and "--Prepayment
                                            and  Yield  Considerations"  in this
                                            Prospectus Supplement.

                                         The yield to  maturity  on the  Offered
                                            Class  B  CitiCertificates  will  be
                                            more  sensitive  to  losses  due  to
                                            liquidations  of the Mortgage  Loans
                                            (and the  timing  thereof)  than the
                                            Class A,  Unoffered  Class  A-IO and
                                            Class  M  CitiCertificates,  in  the
                                            event that the Stated  Amount of the
                                            Unoffered  Class B  CitiCertificates
                                            has been reduced to zero.  The yield
                                            to   maturity   on   the   Class   M
                                            CitiCertificates    will   be   more
                                            sensitive    to   losses    due   to
                                            liquidations  of the Mortgage  Loans
                                            (and the  timing  thereof)  than the
                                            Class  A and  Unoffered  Class  A-IO
                                            CitiCertificates  in the event  that
                                            the  Stated  Amount  of the  Class B
                                            CitiCertificates has been reduced to
                                            zero.   See   "Description   of  the
                                            Offered CitiCertificates--Prepayment
                                            and   Yield    Considerations"   and
                                            "--Yield Considerations With Respect
                                            to    the     Offered     Class    B
                                            CitiCertificates" in this Prospectus
                                            Supplement.

                                         The yield   on    the     Class     A-6
                                            CitiCertificates, which are expected
                                            to  be  offered  at  a   substantial
                                            discount  and which are not entitled
                                            to   distributions   in  respect  of
                                            interest,    will    be    extremely
                                            sensitive  to  both  the  timing  of
                                            receipt  of   prepayments   and  the
                                            overall  rate of  prepayment  on the
                                            Discount  Mortgage Loans. A low rate
                                            of  principal  payments   (including
                                            prepayments)    on   the    Discount
                                            Mortgage  Loans will have a negative
                                            effect and a high rate of  principal
                                            payments (including  prepayments) on
                                            the  Discount  Mortgage  Loans  will
                                            have a positive  effect on the yield
                                            to   investors   in  the  Class  A-6
                                            CitiCertificates.  Because  payments
                                            on the  Class  A-6  CitiCertificates
                                            are directly  related to the rate of
                                            principal  payment  on the  Discount
                                            Mortgage   Loans,    the   rate   of
                                            principal  payment  on the Class A-6
                                            CitiCertificates  will be  different
                                            and most  likely will be slower than
                                            that     of     other     Class    A
                                            CitiCertificates.  See  "Description
                                            of  the   Offered   CitiCertificates
                                            --Prepayment        and        Yield
                                            Considerations"  and  "--Sensitivity
                                            of the Class  A-6  CitiCertificates"
                                            in this Prospectus Supplement.

                                         The holders   of    the    Class    A-5
                                            CitiCertificates    will    not   be
                                            entitled      to     receive     any
                                            distributions in reduction of Stated
                                            Amount  prior  to  the  Distribution
                                            Date in March 2003, and prior to the
                                            Distribution Date in March 2007 will
                                            receive a  disproportionately  small
                                            portion of principal payments on the
                                            Mortgage  Loans  unless  the  Stated
                                            Amounts   of  all   other   Class  A
                                            Subclasses (other than the Class A-6
                                            CitiCertificates)  have been reduced
                                            to   zero   or   the   Subordination
                                            Depletion  Date has  occurred.  As a
                                            result,  the  weighted  average life
                                            will  be   longer,   and   could  be
                                            significantly  longer, than would be
                                            the   case   if   the    Class   A-5
                                            CitiCertificates  received their pro
                                            rata share of the Class A Percentage
                                            and Class A Prepayment Percentage of
                                            the   Non-PO   Percentage   of   all
                                            principal  payments  received on the
                                            Mortgage Loans.

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                                      S-18
<PAGE>

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                                         AN INVESTOR THAT  PURCHASES ANY OFFERED
                                            CITICERTIFICATE   AT   A   DISCOUNT,
                                            ESPECIALLY     THE     CLASS     A-6
                                            CITICERTIFICATES,  SHOULD  CAREFULLY
                                            CONSIDER THE RISK THAT A SLOWER THAN
                                            ANTICIPATED    RATE   OF   PRINCIPAL
                                            PAYMENTS ON THE MORTGAGE  LOANS WILL
                                            RESULT  IN AN ACTUAL  YIELD  THAT IS
                                            LOWER THAN SUCH INVESTOR'S  EXPECTED
                                            YIELD.  AN INVESTOR  THAT  PURCHASES
                                            ANY  OFFERED  CITICERTIFICATE  AT  A
                                            PREMIUM  SHOULD  CONSIDER  THE  RISK
                                            THAT A FASTER THAN  ANTICIPATED RATE
                                            OF   PRINCIPAL   PAYMENTS   ON   THE
                                            MORTGAGE  LOANS  WILL  RESULT  IN AN
                                            ACTUAL YIELD THAT IS LOWER THAN SUCH
                                            INVESTOR'S EXPECTED YIELD.

THE MORTGAGE LOANS
 A. GENERAL ........................     The Mortgage Loans  will have  mortgage
                                            rates  ranging from 6.500% to 8.750%
                                            per  annum.   The  initial  weighted
                                            average   mortgage   rate   of   the
                                            Mortgage  Loans is expected to be at
                                            least 7.339% but no more than 7.739%
                                            per  annum.   The  weighted  average
                                            remaining term to stated maturity of
                                            the Mortgage  Loans will be at least
                                            354  months  but no  more  than  360
                                            months.

                                         The Mortgage Loans will  consist of 20-
                                            to 30-year  fixed rate  conventional
                                            mortgage    loans    originated   or
                                            acquired  by CMI  and  will  include
                                            loans  secured  by shares  issued by
                                            cooperative  housing   corporations.
                                            Mortgage   Loans   acquired  by  CMI
                                            include Mortgage Loans originated or
                                            acquired  by CFSB or  originated  by
                                            Citibank.  See  "Description  of the
                                            Pool and the  Mortgaged  Properties"
                                            in this  Prospectus  Supplement  and
                                            "The  Pools--Mortgage  Loans" in the
                                            Prospectus       for      additional
                                            information  concerning the Mortgage
                                            Loans.

B. CERTIFICATE ACCOUNT .............     All payments received in respect of the
                                            Mortgage  Loans,  beginning with the
                                            March  1998  distribution,  will  be
                                            remitted  directly to a  certificate
                                            account     or     accounts     (the
                                            "Certificate    Account")    to   be
                                            established  with the Trustee on the
                                            Closing Date.  Such payments will be
                                            available   for    distribution   in
                                            reduction  of  Stated  Amount of and
                                            accrued      interest     on     the
                                            CitiCertificates       for       the
                                            Distribution   Date  on  which  such
                                            funds    are    remitted    to   the
                                            Certificate Account.

ALLOCATION OF LOSSES ...............     Shortfalls in  receipts  of interest on
                                            the  Mortgage  Loans and receipts of
                                            principal   with   respect   to  the
                                            Mortgage  Loans  in an  amount  less
                                            than  the   decrease   in  the  Pool
                                            Adjusted   Balance  from  the  prior
                                            Distribution  Date with respect to a
                                            Distribution  Date may  arise due to
                                            losses incurred on Liquidated  Loans
                                            and to delinquencies not advanced by
                                            the  Servicer or the Trustee (in its
                                            individual capacity).

                                         Realized  Losses   (other  than  Excess
                                            Special Hazard Losses,  Excess Fraud
                                            Losses or Excess Bankruptcy  Losses)
                                            will not be  allocated to holders of
                                            the Class A CitiCertificates  (other
                                            than the Class A-6 CitiCertificates)
                                            until  the  Subordination  Depletion
                                            Date.   Prior  to  such  time,   the
                                            applicable Non-PO Percentage of such
                                            Realized  Losses  will be  allocated
                                            first to the Class B  Subclasses  in
                                            reverse  numerical  order  until the
                                            Stated  Amount of each such  Class B
                                            Subclass  has been  reduced to zero,
                                            and    then    to   the    Class   M
                                            CitiCertificates  until  the Class M
                                            Stated  Amount  has been  reduced to
                                            zero.  The  applicable PO Percentage
                                            of  such  Realized  Losses  will  be
                                            allocated    to   the    Class   A-6
                                            CitiCertificates as a PO Loss Amount
                                            until the Stated Amount  thereof has
                                            been reduced to zero,  but such loss
                                            allocation  will  give  rise  to the
                                            right to receive,  in

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

                                      S-19
<PAGE>

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                                            respect    of   the    Class     A-6
                                            CitiCertificates,  reimbursement  of
                                            losses  so  allocated  first  out of
                                            certain       funds        otherwise
                                            distributable   on   the   Class   B
                                            CitiCertificates,  and  then  out of
                                            funds otherwise distributable on the
                                            Class  M   CitiCertificates.   As  a
                                            result,  any  such PO  Loss  Amounts
                                            will  ultimately  be  borne  by  the
                                            Class  B   Subclasses,   in  reverse
                                            numerical  order,  and  then  by the
                                            Class  M  CitiCertificates,  in each
                                            case   for  so  long  as  they   are
                                            outstanding.

                                         The applicable Non-PO Percentage of the
                                            principal   portion  of  any  Excess
                                            Special  Hazard  Loss,  Excess Fraud
                                            Loss or Excess  Bankruptcy Loss will
                                            be  allocated   among  the  Class  A
                                            Subclasses (other than the Class A-6
                                            CitiCertificates),   the   Class   M
                                            CitiCertificates  and  the  Class  B
                                            Subclasses. Any such allocation will
                                            be   accomplished  by  reducing  the
                                            outstanding  Stated  Amount  of each
                                            such Class A  Subclass,  the Class M
                                            CitiCertificates  and  each  Class B
                                            Subclass by the appropriate share of
                                            any  such  principal   losses.   The
                                            applicable  PO  Percentage  of  such
                                            principal  losses will be  allocated
                                            to the Class  A-6  CitiCertificates.
                                            See   "Description  of  the  Offered
                                            CitiCertificates--Subordination--
                                            Allocation of Losses."

                                         On each  Distribution  Date occuring on
                                            and    after    the    Subordination
                                            Depletion  Date,  holders of Class A
                                            CitiCertificates   (other  than  the
                                            Class  A-6  CitiCertificates)   will
                                            generally  receive their  respective
                                            pro  rata   share   of  the   Non-PO
                                            Percentage   of   net    Liquidation
                                            Proceeds   realized  on   Liquidated
                                            Loans and  holders  of the Class A-6
                                            CitiCertificates    will   generally
                                            receive  the  PO  Percentage  of net
                                            Liquidation   Proceeds  realized  on
                                            Liquidated   Loans  (in  each  case,
                                            after  reimbursement to the Servicer
                                            and the  Trustee  of any  previously
                                            unreimbursed    advances   made   in
                                            respect of such loans).

ADVANCES ...........................     The Servicer intends  to make  advances
                                            in respect of  delinquencies  on the
                                            Mortgage Loans in an amount equal to
                                            the   delinquent   payments  to  the
                                            extent the Servicer  determines that
                                            such  advances  will be  recoverable
                                            from future payments and collections
                                            on the Mortgage Loans.  The Servicer
                                            will  contract  with the Trustee (in
                                            its  individual  capacity and not as
                                            Trustee) for the limited  purpose of
                                            providing   for   advances   by  the
                                            Trustee    (in    such    individual
                                            capacity)      in     respect     of
                                            delinquencies to the extent that the
                                            Servicer    fails   to   make   such
                                            advances.   The   Trustee  (in  such
                                            individual  capacity) will make such
                                            advances to the extent it determines
                                            that   such    advances    will   be
                                            recoverable from future payments and
                                            collections on the related  Mortgage
                                            Loans.   Recoveries  in  respect  of
                                            amounts  advanced will be applied to
                                            reimbursement  of the  advances.  On
                                            each Distribution Date, the Servicer
                                            and the Trustee  will be entitled to
                                            withdraw funds from the  Certificate
                                            Account (a) in  reimbursement of all
                                            unreimbursed  advances deemed by the
                                            Servicer or the Trustee, as the case
                                            may be, to be nonrecoverable and (b)
                                            in   reimbursement   of  all   other
                                            unreimbursed  advances made by them,
                                            but only (in the case of clause (b))
                                            from  funds  not   distributable  to
                                            holders of  CitiCertificates on such
                                            Distribution Date.

OPTIONAL TERMINATION ...............     Holders of CitiCertificates may receive
                                            final  distributions  in  connection
                                            with a termination of the Trust made
                                            at  the   option   of  CMSI  on  any
                                            Distribution  Date  after  which the
                                            Pool  Adjusted  Balance is less than
                                            5%  of  the  Initial  Mortgage  Loan
                                            Balance.  The price paid by CMSI for

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

                                      S-20
<PAGE>

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

                                            the Trust  property  will  generally
                                            equal  the  sum of (i)  100%  of the
                                            unpaid  principal   balance  of  the
                                            Mortgage   Loans,    together   with
                                            accrued interest thereon at the NNRs
                                            on the  respective  Mortgage  Loans,
                                            and (ii) the current appraised value
                                            of acquired property. Holders of the
                                            CitiCertificates,  to the  extent of
                                            funds  available,  will  receive the
                                            unpaid   Stated   Amount   of  their
                                            CitiCertificates  plus  accrued  and
                                            unpaid   interest    thereon.    See
                                            "Description    of    the    Offered
                                            CitiCertificates          --Optional
                                            Termination"   in  this   Prospectus
                                            Supplement.

RECORD DATE ........................     The Record Date for  each  Distribution
                                            Date will be the  close of  business
                                            on  the  last   day  of  the   month
                                            preceding    the    month   of   the
                                            applicable Distribution Date.

CERTAIN FEDERAL INCOME TAX
 CONSEQUENCES ......................     The Offered  CitiCertificates  will  be
                                            designated as regular interests in a
                                            REMIC and generally  will be treated
                                            as newly originated debt instruments
                                            for  federal  income  tax  purposes.
                                            Beneficial  Owners (or  holders,  in
                                            the   case   of   the    Class   A-6
                                            CitiCertificates,    the   Class   M
                                            CitiCertificates   and  the  Offered
                                            Class  B  CitiCertificates)  of  the
                                            Offered   CitiCertificates  will  be
                                            required to report  interest  income
                                            on such Offered  CitiCertificates in
                                            accordance  with the accrual  method
                                            of   accounting.   The   Class   A-6
                                            CitiCertificates will be issued with
                                            original issue discount in an amount
                                            equal to the excess of their Initial
                                            Stated   Amount   over  their  issue
                                            price.  It is  anticipated  that the
                                            Class A-1  CitiCertificates  will be
                                            issued  at a  premium  and  that the
                                            Class  A-2,  Class  A-3,  Class A-4,
                                            Class  A-5,  Class M,  Class B-1 and
                                            Class B-2  CitiCertificates  will be
                                            issued  with  de  minimis   original
                                            issue  discount  for federal  income
                                            tax purposes.  See "Certain  Federal
                                            Income Tax Consequences--Taxation of
                                            CitiCertificates--Variable      Rate
                                            CitiCertificates" in the Prospectus.

                                         The Prepayment   Assumption    on   the
                                            Mortgage  Loans, as described in the
                                            Prospectus,  that  is  to  be  used,
                                            among other things,  in  determining
                                            the  rate  of  accrual  of  original
                                            issue   discount   is  250%  of  the
                                            Prepayment   Model's   (as   defined
                                            herein)  assumed  prepayment  rates.
                                            See   "Description  of  the  Offered
                                            CitiCertificates--Weighted   Average
                                            Lives      of      the       Offered
                                            CitiCertificates" in this Prospectus
                                            Supplement.   No  representation  is
                                            made  as to the  rate at  which  the
                                            Mortgage Loans will prepay.

                                         The Offered  CitiCertificates  will  be
                                            treated  as "loans . . .  secured by
                                            an interest in real  property  which
                                            is . . . residential  real property"
                                            and  as  "regular   interests  in  a
                                            REMIC"  for  domestic  building  and
                                            loan associations,  and "real estate
                                            assets" for real  estate  investment
                                            trusts,  to the extent  described in
                                            the Prospectus. See "Certain Federal
                                            Income  Tax   Consequences"  in  the
                                            Prospectus.

ERISA CONSIDERATIONS ...............     A  fiduciary  that is investing or that
                                            could be deemed to be investing  the
                                            assets of any employee  benefit plan
                                            subject  to Title I of the  Employee
                                            Retirement  Income  Security  Act of
                                            1974,  as  amended   ("ERISA"),   or
                                            Section 4975 of the Internal Revenue
                                            Code  of  1986,   as  amended   (the
                                            "Code")  (an  "ERISA   Plan")  or  a
                                            governmental   plan  as  defined  in
                                            Section  3(32) of ERISA,  subject to
                                            any  federal,  state  or  local  law
                                            ("Similar  Law"),  which  is,  to  a
                                            material  extent,   similar  to  the

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

                                      S-21
<PAGE>

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

                                            foregoing provisions of ERISA or the
                                            Code  (collectively,  with an  ERISA
                                            Plan,  a "Plan"),  should  carefully
                                            review  with its own legal  advisors
                                            whether  the  purchase or holding of
                                            the Offered  CitiCertificates  could
                                            give    rise   to   a    transaction
                                            prohibited        or       otherwise
                                            impermissible  under ERISA, the Code
                                            or Similar Law, and should carefully
                                            review   the   discussion   in  this
                                            Prospectus    Supplement   and   the
                                            Prospectus  under the caption "ERISA
                                            Considerations."

                                         On October 17, 1989,  the Department of
                                            Labor  issued  to  the   Underwriter
                                            Prohibited Transaction Exemption PTE
                                            89-89   (the   "Exemption"),   which
                                            Exemption  generally was intended to
                                            apply to the purchase and holding by
                                            ERISA  Plans of  securities  such as
                                            the Class A CitiCertificates,  which
                                            represent  beneficial  interests  in
                                            pass-through  trusts  that  meet the
                                            requirements  of the Exemption.  The
                                            Exemption   should   apply   to  the
                                            acquisition,  holding  and resale of
                                            the Class A  CitiCertificates  by an
                                            ERISA Plan,  provided that specified
                                            conditions  (certain  of  which  are
                                            described   herein,   including  the
                                            condition  that the ERISA Plan be an
                                            "accredited investor" (as defined in
                                            Rule  501(a)(1)  of  Regulation D of
                                            the    Securities    and    Exchange
                                            Commission (the "Commission")  under
                                            the  Securities  Act of  1933))  are
                                            met. See "ERISA  Considerations"  in
                                            this Prospectus Supplement.

                                         Neither  the  Exemption  nor  PTE  83-1
                                            applies to the  purchase  or holding
                                            of  securities  such as the  Class M
                                            CitiCertificates   and  the  Offered
                                            Class  B  CitiCertificates   because
                                            such       CitiCertificates      are
                                            subordinated  to  the  Class  A  and
                                            Unoffered         Class         A-IO
                                            CitiCertificates. Accordingly, Class
                                            M    and     Offered     Class     B
                                            CitiCertificates    may    not    be
                                            transferred  unless  the  transferee
                                            has delivered  (i) a  representation
                                            letter to the Trustee and the Issuer
                                            stating    either   (a)   that   the
                                            transferee  is not a Plan and is not
                                            acting  on behalf of a Plan or using
                                            the assets of a Plan to effect  such
                                            purchase  or (b)  subject to certain
                                            conditions  described  herein,  that
                                            the source of funds used to purchase
                                            the  Class  M  or  Offered  Class  B
                                            CitiCertificates  is  an  "insurance
                                            company general  account" or (ii) an
                                            opinion   of   counsel   and   other
                                            documentation  as  provided  herein.
                                            See "Risk Factors for  Purchasers of
                                            Class M CitiCertificates and Offered
                                            Class                              B
                                            CitiCertificates--Restrictions    on
                                            Transfer" and "ERISA Considerations"
                                            in this Prospectus Supplement.

TRUSTEE ............................     The Bank of New York.

CERTIFICATE RATINGS ................     It is a  condition  of  issuance of the
                                            Offered  CitiCertificates  that  the
                                            Class A CitiCertificates (other than
                                            the Class A-6  CitiCertificates)  be
                                            rated  "AAA"  by  Standard  & Poor's
                                            Ratings   Group  ("S&P")  and  Fitch
                                            IBCA, Inc. ("Fitch");  the Class A-6
                                            CitiCertificates  be rated "AAAr" by
                                            S&P and "AAA" by Fitch;  the Class M
                                            CitiCertificates  be  rated at least
                                            "AA"  by   Fitch;   the   Class  B-1
                                            CitiCertificates  be  rated at least
                                            "A" by  Fitch;  and  the  Class  B-2
                                            CitiCertificates  be  rated at least
                                            "BBB"  by  Fitch.   Ratings  of  the
                                            Offered  CitiCertificates other than
                                            those  indicated above have not been
                                            requested.  However, there can be no
                                            assurance  as  to  whether   another
                                            rating  agency will rate the Offered
                                            CitiCertificates,  and,  if so, what
                                            ratings  would  be  assigned  to the
                                            Offered    CitiCertificates.     The
                                            ratings  so  assigned  may be  lower
                                            than those indicated above.

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

                                      S-22
<PAGE>

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                                         The ratings     of     the      Offered
                                            CitiCertificates should be evaluated
                                            independently  from similar  ratings
                                            on other  types of  securities.  The
                                            ratings   do   not    address    the
                                            possibility  that  as  a  result  of
                                            prepayments   holders   of   Offered
                                            CitiCertificates may receive a lower
                                            than  anticipated  yield. 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
                                            agency.  The "r"  symbol in  certain
                                            S&P ratings is attached to highlight
                                            certificates  that S&P  believes may
                                            experience  high  volatility or high
                                            variability in expected  returns due
                                            to non-credit  risks. The absence of
                                            an "r" symbol should not be taken as
                                            an  indication  that  a  certificate
                                            will   exhibit  no   volatility   or
                                            variability in total return.
























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                                      S-23
<PAGE>


                            DESCRIPTION OF THE POOL
                          AND THE MORTGAGED PROPERTIES

     The Pool to be evidenced  by the  CitiCertificates  will  include  Mortgage
Loans evidenced by mortgage notes with an aggregate  Adjusted  Balance as of the
Cut-Off  Date  of  approximately  $207,670,264.  This  amount  is  subject  to a
permitted upward or downward  variance of up to 5.0%. None of the Mortgage Loans
will be CitiMae Mortgage Loans.

     The  "Adjusted  Balance"  of any  Mortgage  Loan as of the first day of any
month is the scheduled  principal balance thereof as of the close of business on
such day (whether or not any  scheduled  payments  have been received and before
any  adjustment  to the related  amortization  schedule by reason of  bankruptcy
(other than a Deficient  Valuation)),  less any Principal Prepayments thereon or
in respect  thereof  received  or posted  prior to the close of  business on the
business day preceding  such first day (or, in the case of the Cut-Off Date, any
Principal  Prepayments thereon or in respect thereof received or posted prior to
the close of business on the Cut-Off Date).

     A detailed  description (the "Detailed  Description") of the Mortgage Loans
will be available at the time of issuance of the CitiCertificates.  The Detailed
Description  will  specify the Initial  Mortgage  Loan Balance as of the Cut-Off
Date and  will  also set  forth  tables  reflecting  the  following  information
regarding the Mortgage Loans:  years of  origination,  types of dwellings on the
underlying properties,  sizes of Mortgage Loans,  loan-to-value ratios, mortgage
rates and geographical distribution by state of the Mortgage Loans. The Detailed
Description will also specify the Special Hazard Loss Amount,  Fraud Loss Amount
and Bankruptcy Loss Amount as of the Cut-Off Date, the aggregate  Initial Stated
Amounts  of the  Class A  CitiCertificates,  the Class M  CitiCertificates,  the
Offered Class B CitiCertificates,  the Unoffered Class B  CitiCertificates,  and
the  Subordinated  CitiCertificate  Percentage and the Class M, Class B-1, Class
B-2, Class B-3 and Class B-4  Subordination  Percentages as of the Cut-Off Date.
The  information  contained in the Detailed  Description  will be set forth in a
report on Form 8-K which will be filed with the Commission within 15 days of the
issuance of the CitiCertificates.

     The following  paragraphs set forth detailed  information as of the Cut-Off
Date with  respect to the  Mortgage  Loans  expected  to be in the Pool.  To the
extent that the Mortgage Loans differ from the  descriptions  contained  herein,
immaterial variances in such information may result.

     The weighted average Note Rate of the Mortgage Loans as of the Cut-Off Date
will be at least 7.339% but no more than 7.739% per annum.  The  Mortgage  Loans
will have Note Rates of at least  6.500% but no more than 8.750% per annum.  The
weighted  average  remaining term to stated maturity of the Mortgage Loans as of
the Cut-Off Date will be at least 354 months but no longer than 360 months.  All
Mortgage Loans have original  maturities of 20 to 30 years. None of the Mortgage
Loans will have been originated  prior to September 1, 1996 or after February 1,
1998.  None of the  Mortgage  Loans will have a  scheduled  maturity  later than
February 1, 2028.

     The Mortgage Loans will have the following additional characteristics as of
the Cut-Off Date (expressed as a percentage of the aggregate Adjusted Balance of
the Mortgage Loans having such characteristics  relative to the Initial Mortgage
Loan Balance):

     At least 95% of the Mortgage Loans will be Mortgage Loans  originated using
loan underwriting  policies which require,  among other things,  proof of income
and liquid assets and telephone  verification  of employment,  or are refinanced
Mortgage  Loans  originated  using   alternative  or  streamlined   underwriting
policies.  No more than 55% of the Mortgage  Loans will be  refinanced  Mortgage
Loans originated using  alternative or streamlined  underwriting  policies.  See
"Loan  Underwriting  Policies and Loss and  Delinquency  Considerations"  in the
Prospectus.

     At least 10% of the  Mortgage  Loans will be Mortgage  Loans each having an
Adjusted Balance of less than $250,000.

     At least 80% of the  Mortgage  Loans will be Mortgage  Loans each having an
Adjusted Balance of less than $500,000.

     No more than 20% of the Mortgage  Loans will be Mortgage  Loans each having
an Adjusted Balance of at least $500,000 but less than $1,000,000.

     No more than 15% of the Mortgage Loans will have had  loan-to-value  ratios
at origination in excess of 80%; no more than 5% of the Mortgage Loans will have
had  loan-to-value  ratios  at  origination  in  excess  of 90% and  none of the
Mortgage  Loans will have had  loan-to-value  ratios at origination in excess of
95%. The weighted  average


                                      S-24
<PAGE>

loan-to-value  ratio at origination of the Mortgage Loans as of the Cut-Off Date
will be no more  than  76%.  For  more  information  on  Mortgage  Loans  having
loan-to-value  ratios at  origination  in excess of 80%,  see  "Appendix  A: The
Mortgage Loans and CitiMortgageCertificates--The Mortgage Loans--General" in the
Prospectus.

     At least 95% of the Mortgage Loans will be secured by one-family dwellings.

     No more than 10% of the  Mortgage  Loans will be  secured by  condominiums,
townhouses, rowhouses and shares issued by cooperative housing corporations.

     No  more  than  5% of the  Mortgage  Loans  will be  secured  by  Mortgaged
Properties located in any one zip code.

     No more than 40% and 15% of the Mortgage Loans will be secured by Mortgaged
Properties located in California and New York, respectively. No more than 10% of
the Mortgage Loans will be secured by Mortgaged  Properties located in any other
state.

     At least 90% of the Mortgage  Loans will be  determined by the Issuer to be
secured by a Mortgage on the primary residence of the borrower.  No more than 5%
of the Mortgage Loans will be secured by investment properties. See "Appendix A:
The Mortgage Loans and CitiMortgageCertificates--The Mortgage Loans--General" in
the Prospectus.

     All Mortgage Loans having NNRs of less than 6.75% will be Discount Mortgage
Loans and all  Mortgage  Loans  having NNRs of 6.75% or greater  will be Premium
Mortgage Loans. The aggregate  Adjusted Balance  outstanding,  as of the Cut-off
Date,  of the Discount  Mortgage  Loans and the Premium  Mortgage  Loans will be
approximately  $5,071,031 and $202,599,233,  respectively.  The weighted average
Note Rate of the Discount  Mortgage Loans and the Premium  Mortgage Loans, as of
the Cut-off Date, will be  approximately  6.805% and 7.558%,  respectively.  The
weighted  average  remaining  term to stated  maturity of the Discount  Mortgage
Loans  and  the  Premium  Mortgage  Loans,  as of  the  Cut-off  Date,  will  be
approximately 359 months and 357 months, respectively.


                                      S-25
<PAGE>

                                  RISK FACTORS
                   FOR PURCHASERS OF CLASS M CITICERTIFICATES
                      AND OFFERED CLASS B CITICERTIFICATES

     Investors should consider,  among other things, the factors discussed below
in connection with any purchase of Class M CitiCertificates  and Offered Class B
CitiCertificates.

SUBORDINATION

     The Class M  CitiCertificates  are subordinated in right of payments to the
Class A and Unoffered Class A-IO  CitiCertificates  as described  herein and the
Offered Class B  CitiCertificates  are  subordinated in right of payments to the
Class A, Unoffered Class A-IO and Class M CitiCertificates  as described herein.
Further,  the Offered Class B Subclasses are subordinated in right of payment to
any Offered Class B Subclass with a lower numerical designation.  Holders of the
Class A and Unoffered Class A-IO CitiCertificates will have a preferential right
to receive out of the Pool Distribution Amount for a Distribution Date, prior to
any  distribution  being made on such date in respect of the Class M and Class B
CitiCertificates,  all distributions due on the Class A and Unoffered Class A-IO
CitiCertificates.  In addition,  Realized  Losses on the Mortgage  Loans will be
applied first to the Unoffered Class B CitiCertificates, second to the Class B-2
CitiCertificates,  third to the Class  B-1  CitiCertificates  and  fourth to the
Class M CitiCertificates before being applied to the Class A CitiCertificates to
the extent described below. See "Description of the Offered CitiCertificates" in
this Prospectus Supplement.

DELINQUENCIES AND ADVANCES

     The Servicer  may,  but is not  obligated  to, make  advances in respect of
delinquent scheduled payments of principal of or interest on the Mortgage Loans.
The Servicer intends to make advances to the extent the Servicer  determines the
amounts  of  such  advances  will  be  recoverable   from  future  payments  and
collections on the related  Mortgage Loans.  The Servicer will contract with the
Trustee (in its individual  capacity and not as Trustee) for the limited purpose
of  providing  for  advances  by the Trustee (in such  individual  capacity)  in
respect of  delinquencies to the extent that the Servicer fails to make any such
advance.  The Trustee (in such  individual  capacity) will make such advances to
the extent it  determines  that such advances  will be  recoverable  from future
payments and  collections on the related  Mortgage Loans. To the extent that the
Servicer  and the  Trustee  (in  such  individual  capacity)  do not  make  such
advances,   the  only   source  of  cash  for   distributions   to   holders  of
CitiCertificates will be the Pool Distribution Amount.

ALLOCATION OF LOAN LOSSES

     Liquidated  Loans: The applicable  Non-PO  Percentage of Realized Losses on
the Mortgage  Loans as a result of losses  realized on Liquidated  Loans will be
allocated  first to the Class B Subclasses in reverse  numerical order up to the
Stated Amount of each such Class B Subclass and accrued  interest  thereon,  and
then to the Class M CitiCertificates up to the Stated Amount thereof and accrued
interest  thereon.   The  applicable  PO  Percentage  of  Realized  Losses  will
ultimately   be  allocated   to  the  Class  B   Subclasses   and  the  Class  M
CitiCertificates,  in the manner described in the preceding sentence,  by virtue
of  the  right  of  the  holders  of  Class  A-6   CitiCertificates  to  receive
reimbursement  of PO Loss  Amounts  out of amounts  otherwise  distributable  in
reduction  of Stated  Amount of the  Class B and Class M  CitiCertificates.  The
Class A  CitiCertificates  (other than the Class A-6  CitiCertificates)  will be
entitled to receive the Class A Prepayment  Percentage of the applicable  Non-PO
Percentage of the principal  portion of net  liquidation  proceeds and the Class
A-6 CitiCertificates will be entitled to receive the applicable PO Percentage of
the  principal  portion of net  liquidation  proceeds.  After the  Subordination
Depletion  Date, the  applicable  Non-PO  Percentage of Realized  Losses will be
allocated  among  the  Class  A  CitiCertificates  (other  than  the  Class  A-6
CitiCertificates).

     Special  Hazard  Losses:  Until the Special  Hazard  Termination  Date, the
applicable Non-PO Percentage of all Special Hazard Losses will reduce the Stated
Amount of and accrued  interest on the Class M and Class B  CitiCertificates  in
the order of priority set forth in the preceding paragraph. The PO Percentage of
such losses will  ultimately  be allocated to the Class B Subclasses  in reverse
numerical order and then the Class M CitiCertificates, as described in the third
succeeding  paragraph.  The Class A  CitiCertificates  (other than the Class A-6
CitiCertificates)  will be entitled to receive, in respect of each Mortgage Loan
that becomes a Special Hazard  Mortgage Loan in the preceding  month,  an amount
equal to the Class A Prepayment  Percentage of the applicable  Non-PO Percentage
of the principal portion of the related net liquidation proceeds,  and the Class
A-6  CitiCertificates  will be  entitled  to  receive


                                      S-26
<PAGE>

an amount equal to the applicable PO Percentage of the principal portion of such
net  liquidation  proceeds.  After the  Special  Hazard  Termination  Date,  the
applicable  Non-PO  Percentage of the principal portion of Excess Special Hazard
Losses will be allocated among the Class A Subclasses  (other than the Class A-6
CitiCertificates)  and the Class M and  Class B  CitiCertificates  as  described
herein         under         "Description         of         the         Offered
CitiCertificates--Subordination--Allocation  of Losses" and the PO Percentage of
the principal  portion of Excess  Special Hazard Losses will be allocated to the
Class A-6  CitiCertificates.  Excess  Special  Hazard Losses are Special  Hazard
Losses in excess of the Special  Hazard Loss  Amount,  which will  initially  be
equal to approximately 1.17% of the Initial Mortgage Loan Balance.

     Fraud Losses:  Until the Fraud  Coverage  Termination  Date, the applicable
Non-PO  Percentage  of all Fraud  Losses  will  reduce the Stated  Amount of and
accrued  interest  on the Class M and Class B  CitiCertificates  in the order of
priority set forth in the second preceding paragraph.  The PO Percentage of such
losses  will  ultimately  be  allocated  to the Class B  Subclasses  in  reverse
numerical  order  and then the Class M  CitiCertificates,  as  described  in the
second succeeding paragraph. Holders of the Class A CitiCertificates (other than
the Class A-6 CitiCertificates)  will be entitled to receive, in respect of each
Mortgage Loan that was subject to a Fraud Loss in the preceding month, an amount
equal to the Class A Prepayment  Percentage of the applicable  Non-PO Percentage
of the principal portion of the related net liquidation proceeds,  and the Class
A-6  CitiCertificates  will be  entitled  to  receive  an  amount  equal  to the
applicable  PO  Percentage  of the  principal  portion  of such net  liquidation
proceeds.  After the Fraud Coverage  Termination  Date,  the  applicable  Non-PO
Percentage  of the  principal  portion of Excess  Fraud Losses will be allocated
among the Class A Subclasses (other than the Class A-6 CitiCertificates) and the
Class M and Class B  CitiCertificates  as described herein under "Description of
the Offered CitiCertificates--Subordination--  Allocation of Losses," and the PO
Percentage of the principal  portion of Excess Fraud Losses will be allocated to
the Class A-6  CitiCertificates.  Excess Fraud Losses are Fraud Losses in excess
of the Fraud Loss Amount,  which will initially be equal to approximately  1.00%
of the Initial Mortgage Loan Balance.

     Bankruptcy  Losses:  Until the Bankruptcy  Coverage  Termination  Date, the
applicable  Non-PO  Percentage of all  Bankruptcy  Losses will reduce the Stated
Amount of and accrued  interest on the Class M and Class B  CitiCertificates  in
the  order of  priority  set  forth in the  third  preceding  paragraph.  The PO
Percentage of such losses will ultimately be allocated to the Class B Subclasses
in reverse numerical order and then the Class M  CitiCertificates,  as described
in the next succeeding  paragraph.  On each Distribution Date occurring prior to
the Bankruptcy  Coverage  Termination Date, the Stated Amount of the Class M and
Class B CitiCertificates  will be reduced, in respect of each Mortgage Loan that
was subject to a Bankruptcy  Loss in the preceding  month, in an amount equal to
the applicable  Non-PO  Percentage of the principal  portion of such  Bankruptcy
Loss.  After the Bankruptcy  Coverage  Termination  Date, the applicable  Non-PO
Percentage  of the  principal  portion  of  Excess  Bankruptcy  Losses  will  be
allocated   among   the   Class  A   Subclasses   (other   than  the  Class  A-6
CitiCertificates)  and Class M and Class B CitiCertificates  as described herein
under "Description of the Offered CitiCertificates--Subordination--Allocation of
Losses" and the PO Percentage of Excess  Bankruptcy  Losses will be allocated to
the Class A-6  CitiCertificates.  Excess Bankruptcy Losses are Bankruptcy Losses
in excess of the  Bankruptcy  Loss  Amount,  which  will  initially  be equal to
approximately 0.05% of the Initial Mortgage Loan Balance.

     Until the Special Hazard Termination Date, Fraud Coverage  Termination Date
and  Bankruptcy  Coverage  Termination  Date,  the  applicable  PO Percentage of
Special  Hazard  Losses,  Fraud  Losses  and  Bankruptcy  Losses  will  first be
allocated to the Class B Subclasses in reverse  numerical  order and then to the
Class M CitiCertificates  by virtue of the right of the holders of the Class A-6
CitiCertificates  to receive  reimbursement  of PO Loss  Amounts  out of amounts
otherwise  distributable  in reduction  of the Stated  Amount of the Class B and
Class M CitiCertificates.

     The exact amounts of Special  Hazard  Losses,  Fraud Losses and  Bankruptcy
Losses to be allocated to the Class M and Class B CitiCertificates (in each case
only prior to the related  termination  date) will be those amounts  required by
the rating agency (or rating agencies) rating the Offered  CitiCertificates as a
condition  of the ratings set forth in "Summary  of  Prospectus  and  Prospectus
Supplement--Certificate Ratings" in this Prospectus Supplement.

     The interest  portion of any Excess  Special  Hazard  Losses,  Excess Fraud
Losses  and  Excess  Bankruptcy  Losses  will be  allocated  pro rata  among the
CitiCertificates  (other  than  the  Class  A-6  CitiCertificates)  based on the
interest accrued on each Class.

EFFECT OF LOSSES AND OTHER SHORTFALLS

     The  ultimate   payment  to  holders  of  Class  M  and  Offered   Class  B
CitiCertificates  of the Stated Amount  thereof is dependent upon the timing and
the level of losses  realized  on the  Mortgage  Loans and other  shortfalls  in
distributions 


                                      S-27
<PAGE>

on the Mortgage  Loans.  Special  Hazard  Losses (up to the Special  Hazard Loss
Amount), Fraud Losses (up to the Fraud Loss Amount) and Bankruptcy Losses (up to
the Bankruptcy Loss Amount) and other Realized  Losses on Liquidated  Loans will
be allocated  first to the  Unoffered  Class B  CitiCertificates,  second to the
Class B-2 CitiCertificates,  third to the Class B-1 CitiCertificates and then to
the Class M CitiCertificates until the Subordination Depletion Date.

     To the  extent  that all such  amounts  and  shortfalls  are  allocated  as
described above, holders of the Class M and Offered Class B CitiCertificates may
experience   shortfalls  in  distributions  of  interest  and  may  not  receive
distributions equal to the Initial Stated Amount of their  CitiCertificates  and
may,  depending  on the  purchase  price  of  such  CitiCertificates,  suffer  a
reduction in yield or  experience a loss on their  investment  in the Class M or
Offered Class B CitiCertificates, as the case may be.

RESTRICTIONS ON TRANSFER

     Under current law, the purchase and holding of the Class M CitiCertificates
and the Offered Class B CitiCertificates by or on behalf of a Plan may result in
"prohibited  transactions"  within the meaning of ERISA and Code Section 4975 or
Similar Law. A transfer of the Class M CitiCertificates  and the Offered Class B
CitiCertificates will not be registered by the Trustee unless the transferee (i)
executes  a  representation  letter in form and  substance  satisfactory  to the
Trustee  stating  either (a) that it is not, and is not acting on behalf of, any
such Plan or using the assets of any such Plan to effect  such  purchase  or (b)
subject to certain conditions described herein, that the source of funds used to
purchase  the  Class M or  Offered  Class B  CitiCertificates  is an  "insurance
company general  account" or (ii) provides (A) an opinion of counsel in form and
substance  satisfactory  to the  Trustee  and the Issuer  that the  purchase  or
holding of the Class M or Offered  Class B  CitiCertificates  by or on behalf of
such Plan will not  result in the assets of the Trust  being  deemed to be "plan
assets" and subject to the  prohibited  transaction  provisions of ERISA and the
Code or Similar Law and will not subject the  Servicer  (or its  designee),  the
Issuer or the Trustee to any  obligation in addition to those  undertaken in the
Pooling Agreement and (B) such other opinions of counsel, officers' certificates
and agreements as the Trustee and the Issuer may require in connection with such
transfer.

LEGAL INVESTMENT

     Institutions  whose  investment  activities are subject to legal investment
laws and  regulations  or to review by  certain  regulatory  authorities  may be
subject to  restrictions  on  investment  in the Class M and the Offered Class B
CitiCertificates.  The Issuer makes no representations or warranties  concerning
whether  the  Class  M  or  the  Offered  Class  B  CitiCertificates  are  legal
investments  under any  federal or state law,  regulation,  rule or order of any
court.  The  Offered  Class B  CitiCertificates  will not  constitute  "mortgage
related  securities"  within the meaning of SMMEA. The Class M  CitiCertificates
will  qualify  at  issuance  as  "mortgaged  related  securities."   Prospective
investors are advised to consult their counsel as to  qualification of the Class
M and the Offered Class B  CitiCertificates  as legal investments under any such
laws, regulations, rules and orders.


                                      S-28
<PAGE>

                  DESCRIPTION OF THE OFFERED CITICERTIFICATES

     The  Offered  CitiCertificates  will  be  issued  pursuant  to the  Pooling
Agreement,  a form of which is filed as an exhibit to the Registration Statement
of which this  Prospectus  Supplement is a part. The Trustee will make available
for inspection a copy of the Pooling Agreement (without  attachments) to holders
of  CitiCertificates  upon written request.  Reference is made to the Prospectus
for important additional  information  regarding the terms and conditions of the
Pooling  Agreement  and  the   CitiCertificates.   Each  Class  A  and  Class  M
CitiCertificate  at the time of issuance  will  qualify as a  "mortgage  related
security" within the meaning of SMMEA and will retain such qualification so long
as it is rated  in one of the two  highest  rating  categories  by at least  one
nationally recognized statistical rating organization.

     Distributions on the Offered CitiCertificates generally will be made by the
Trustee by wire  transfer (if wiring  instructions  are received from the Person
entitled thereto) in the case of a holder of Offered  CitiCertificates having an
aggregate  Initial  Stated  Amount of $1,000,000 or more, or by check or by such
other means as the Person entitled  thereto and the Trustee shall agree.  Unless
and until Definitive  Certificates are issued,  Cede, as nominee of DTC, will be
the holder of the Book-Entry  CitiCertificates.  However, the final distribution
in reduction of Stated Amount will be made only upon  presentation and surrender
of such  CitiCertificate at the office of the Trustee.  Payments will be made to
or for the account of the Person entitled thereto or as specified by such Person
in accordance with the terms of the Pooling Agreement.

DISTRIBUTIONS OF INTEREST

     The amount of  interest  that will be  distributable  with  respect to each
Class A Subclass  during each Interest  Accrual  Period is referred to herein as
the "Class A Subclass  Interest  Amount" for such Class A Subclass.  The Class A
Subclass  Interest  Amount for each Class A Subclass  (other  than the Class A-6
CitiCertificates)  will equal the  interest  accrued for each  Interest  Accrual
Period at the  applicable  Stated Rate set forth on the cover page hereof on the
Class A  Subclass  Stated  Amount of such Class A  Subclass,  reduced by (i) the
portion  of any  Non-Supported  Interest  Shortfall  allocable  to such  Class A
Subclass and (ii) the interest  portion of Excess Special Hazard Losses,  Excess
Fraud Losses and Excess  Bankruptcy Losses allocable to such Class A Subclass as
described below. The Class A-6 CitiCertificates will not bear interest.  The sum
of the Class A Subclass  Interest Amounts for a particular  Distribution Date is
the "Class A Interest Amount."

     An amount of interest  equal to the Unoffered  Class A-IO  Interest  Amount
will accrue on the Unoffered  Class A-IO  CitiCertificates  during each Interest
Accrual Period.  On each  Distribution  Date, to the extent funds are available,
the  Distributable  Unoffered  Class A-IO Interest Amount will be distributed to
the Unoffered Class A-IO CitiCertificates.

     The amount of interest that will be distributable with respect to the Class
M CitiCertificates  during each Interest Accrual Period is referred to herein as
the  "Class M  Interest  Amount."  The Class M  Interest  Amount  will equal the
interest  accrued for an Interest Accrual Period at a rate of 6.75% per annum on
the Class M Stated  Amount,  reduced  by (i) the  portion  of any  Non-Supported
Interest  Shortfall  allocable  to the  Class M  CitiCertificates  and  (ii) the
interest portion of Excess Special Hazard Losses, Excess Fraud Losses and Excess
Bankruptcy Losses allocable to the Class M CitiCertificates as described below.

     The amount of  interest  that will be  distributable  with  respect to each
Offered  Class B  Subclass  and each  Unoffered  Class B  Subclass  during  each
Interest  Accrual  Period is referred to herein,  respectively,  as the "Offered
Class B Subclass  Interest Amount" and the "Unoffered Class B Subclass  Interest
Amount." The Offered and Unoffered  Class B Subclass  Interest Amount will equal
the  interest  accrued for an Interest  Accrual  Period at the rate of 6.75% per
annum on the Stated Amount of such Class B Subclass, in each case reduced by (i)
the portion of any Non-Supported  Interest  Shortfall  allocable to such Class B
Subclass and (ii) the interest  portion of Excess Special Hazard Losses,  Excess
Fraud Losses and Excess  Bankruptcy Losses allocable to such Class B Subclass as
described below. The sum of the Offered Class B Subclass  Interest Amounts as of
any  Distribution  Date is the "Offered Class B Interest  Amount" and the sum of
the Unoffered Class B Subclass  Interest Amounts as of any Distribution  Date is
the "Unoffered Class B Interest Amount." The sum of the Offered Class B Interest
Amount and the Unoffered Class B Interest  Amount for a particular  Distribution
Date is the "Class B Interest Amount."

     The "Class A Subclass  Stated Amount" of a Class A Subclass (other than the
Class A-6 CitiCertificates) as of any Distribution Date before the Subordination
Depletion  Date will be the Initial  Stated Amount of such Class A 


                                      S-29
<PAGE>

Subclass   less  (i)  all   amounts   previously   distributed   to  holders  of
CitiCertificates  of such Class A Subclass in reduction of the Stated  Amount of
such Class A Subclass  and (ii) such  Class A  Subclass's  pro rata share of the
applicable  Non-PO  Percentage of the principal portion of Excess Special Hazard
Losses, Excess Fraud Losses and Excess Bankruptcy Losses previously allocated to
the Class A CitiCertificates  (other than the Class A-6 CitiCertificates) in the
manner described below under  "--Subordination--Allocation of Losses." After the
Subordination Depletion Date, the Class A Subclass Stated Amount of such Class A
CitiCertificates  may be subject to further reduction in an amount equal to such
Class A Subclass's  pro rata share of the  difference,  if any,  between (a) the
Class A Stated Amount (after  subtracting  the Class A Subclass Stated Amount of
the Class A-6  CitiCertificates)  as of such Distribution Date without regard to
this  provision  and  (b)  the  sum of the  products  of the  applicable  Non-PO
Percentage of each Mortgage Loan and the Adjusted  Balance of such Mortgage Loan
for the preceding  Distribution Date (the "Non-PO Pool Adjusted  Balance").  Any
pro rata  allocation  described in this paragraph will be made among the Class A
Subclasses  (other  than the Class A-6  CitiCertificates)  on the basis of their
then   outstanding   Class  A  Subclass  Stated  Amounts  as  of  the  preceding
Distribution Date.

     The Class A Subclass Stated Amount of the Class A-6  CitiCertificates as of
any Distribution Date will be equal to the difference  between the Pool Adjusted
Balance and the Non-PO Pool Adjusted Balance as of such date.

     With respect to each Distribution Date prior to the Subordination Depletion
Date, the "PO Loss Amount" for such  Distribution Date will equal the sum of (i)
the  difference,  if any,  between  the  Class A PO  Principal  Amount  for such
Distribution  Date and the amount  distributed in reduction of the Stated Amount
of the  Class  A-6  CitiCertificates  on such  Distribution  Date  and  (ii) the
applicable PO Percentage of each Realized Loss (other than Excess Special Hazard
Losses,  Excess Fraud  Losses and Excess  Bankruptcy  Losses).  On and after the
Subordination  Depletion  Date,  Available  PO Loss  Funds will be zero and will
therefore not be available for reimbursement of PO Loss Amounts.

     The "Class A Stated  Amount" as of any  Distribution  Date will be equal to
the sum of the Class A Subclass Stated Amounts as of such date.

     The "Class M Stated  Amount" as of any  Distribution  Date will be equal to
the lesser of (a) the Initial Stated Amount of the Class M CitiCertificates less
(i) all amounts previously distributed to holders thereof in reduction of Stated
Amount and (ii) such  Class's  pro rata share of the  Non-PO  Percentage  of the
principal  portion of Excess  Special  Hazard  Losses,  Excess  Fraud Losses and
Excess Bankruptcy Losses previously allocated to the Class M CitiCertificates in
the manner described below under "--Subordination--Allocation of Losses" and (b)
the Pool  Adjusted  Balance  minus  the  Class A Stated  Amount,  each as of the
immediately preceding Distribution Date (after taking into account distributions
in reduction of Stated Amount and the  allocation of any Excess  Special  Hazard
Losses, Excess Fraud Losses and Excess Bankruptcy Losses on such date).

     The "Offered Class B Subclass Stated Amount" of an Offered Class B Subclass
as of any Distribution  Date will be the lesser of (a) the Initial Stated Amount
of such Offered Class B Subclass less (i) all amounts previously  distributed to
holders of CitiCertificates of such Offered Class B Subclass in reduction of the
Stated Amount thereof and (ii) such Offered Class B Subclass's pro rata share of
the Non-PO  Percentage of the principal portion of Excess Special Hazard Losses,
Excess Fraud Losses and Excess Bankruptcy Losses previously allocated to holders
of  the  Class  B   CitiCertificates   in  the  manner   described  below  under
"--Subordination--Allocation  of Losses" and (b) the Pool Adjusted Balance minus
the sum of the Class A Stated  Amount and the Class M Stated  Amount and, in the
case of a particular  Offered Class B Subclass,  the aggregate  Stated Amount of
the Offered Class B Subclasses having a lower numerical designation,  each as of
the  immediately   preceding   Distribution  Date  (after  taking  into  account
distributions  in reduction of Stated  Amount and the  allocation  of any Excess
Special Hazard Losses,  Excess Fraud Losses and Excess Bankruptcy Losses on such
date). The "Offered Class B Stated Amount" as of any  Distribution  Date will be
equal to the sum of the Offered Class B Subclass Stated Amounts as of such date.

     The "Unoffered  Class B Subclass  Stated  Amount" of any Unoffered  Class B
Subclass  as of any  Distribution  Date will be the  lesser  of (a) the  Initial
Stated Amount of such Unoffered Class B Subclass less (i) all amounts previously
distributed to holders of CitiCertificates of such Unoffered Class B Subclass in
reduction  of the  Stated  Amount  thereof  and  (ii)  such  Unoffered  Class  B
Subclass's pro rata share of the applicable  Non-PO  Percentage of the principal
portion  of Excess  Special  Hazard  Losses,  Excess  Fraud  Losses  and  Excess
Bankruptcy  Losses  previously  allocated  to holders of the  Unoffered  Class B
CitiCertificates      in     the     manner      described      below      under
"--Subordination--Allocation  of Losses" and (b) the Pool Adjusted Balance minus
the sum of the Class A Stated  Amount,  the Class M Stated  Amount,  the Offered
Class B Stated Amount and the Unoffered  Class B Subclass  Stated 


                                      S-30
<PAGE>

Amount of each Unoffered  Class B Subclass with a lower  numerical  designation,
each as of the  immediately  preceding  Distribution  Date  (after  taking  into
account  distributions  in reduction of Stated Amount and the  allocation of any
Excess Special Hazard Losses,  Excess Fraud Losses and Excess  Bankruptcy Losses
on such date). The "Unoffered Class B Stated Amount" as of any Distribution Date
will be the aggregate of the  Unoffered  Class B Subclass  Stated  Amounts as of
such date. The "Class B Stated Amount" as of any  Distribution  Date will be the
Pool Adjusted  Balance less the sum of the Class A Stated Amount and the Class M
Stated  Amount and will equal the sum of the Offered  Class B Stated  Amount and
the Unoffered Class B Stated Amount.

     With respect to any  Distribution  Date, the "Pool  Adjusted  Balance" will
equal  the  aggregate  Adjusted  Balances  of  the  Mortgage  Loans  as of  such
Distribution Date.

     Interest shortfalls resulting from full or partial principal prepayments of
Mortgage Loans ("Prepayment  Interest  Shortfalls") will be offset to the extent
of  the  Compensating  Cap on  the  related  Distribution  Date.  The  aggregate
Prepayment   Interest   Shortfalls  in  excess  of  the  Compensating  Cap  (the
"Non-Supported  Interest  Shortfall")  will be  allocated  pro  rata  among  the
CitiCertificates  (other than the Class A-6 CitiCertificates)  based on interest
accrued on each such Class and  accordingly  will  reduce the amount of interest
due to be  distributed  to  holders of the  CitiCertificates  then  entitled  to
distributions in respect of interest.  Any such reduction in respect of interest
allocated to the Class A and Class B  CitiCertificates  will be allocated  among
the Class A Subclasses and the Class B Subclasses, respectively, pro rata on the
basis of their  respective  amounts of accrued  interest  for such  Distribution
Date.

     The interest  portion of any Excess  Special  Hazard  Losses,  Excess Fraud
Losses or Excess  Bankruptcy  Losses  with  respect to a  Mortgage  Loan will be
allocated  pro  rata  among  the  CitiCertificates  (other  than the  Class  A-6
CitiCertificates)  based on the  amount of  interest  accrued  on each Class and
among the Class A Subclasses,  and among the Class B  Subclasses,  respectively,
pro rata on the basis of their  respective  amounts of interest accrued for such
Distribution Date.

     Allocations of the interest  portion of Realized  Losses (other than Excess
Special Hazard Losses, Excess Fraud Losses or Excess Bankruptcy Losses) first to
the Class B  CitiCertificates  in reverse  numerical order,  then to the Class M
CitiCertificates   and  then  to  the   Class  A  and   Unoffered   Class   A-IO
CitiCertificates  will result from the  priority of  distributions  first to the
Class A and  Unoffered  Class A-IO  CitiCertificateholders,  then to the Class M
CitiCertificateholders  and then to the  Class B  CitiCertificateholders  of the
Pool Distribution Amount.

     On each Distribution  Date, prior to the  Subordination  Depletion Date, on
which the Pool Distribution Amount equals or exceeds the Class A Interest Amount
plus the  Distributable  Unoffered Class A-IO Interest Amount,  distributions in
respect of  interest  to each  Class A Subclass  will equal its Class A Subclass
Interest Amount, and distributions in respect of interest to the Unoffered Class
A-IO CitiCertificates will equal the Distributable Unoffered Class A-IO Interest
Amount.

     In  the  unlikely  event  that,  on  any  Distribution  Date  prior  to the
Subordination  Depletion  Date,  the Pool  Distribution  Amount is less than the
Class A Interest  Amount plus the  Distributable  Unoffered  Class A-IO Interest
Amount,  the  amount  of  interest  currently  distributed  on the  Class  A and
Unoffered Class A-IO  CitiCertificates  will equal the Pool Distribution  Amount
and will be allocated  among the Class A Subclasses and the Unoffered Class A-IO
CitiCertificates  pro rata in  accordance  with the  Class A  Subclass  Interest
Amounts  and  the   Distributable   Unoffered   Class  A-IO   Interest   Amount,
respectively. Any Class A Subclass Interest Shortfall Amount and Unoffered Class
A-IO Unpaid Interest  Shortfall will be added to the amount to be distributed to
the related Class A Subclass and the Unoffered Class A-IO  CitiCertificates,  as
applicable,  on  subsequent  Distribution  Dates  to the  extent  that  the Pool
Distribution  Amount  is  sufficient  therefor  and,  in the  case  of a Class A
Subclass,  the related  Class A Subclass is then  outstanding.  No interest will
accrue on the unpaid Class A Subclass  Interest  Shortfall  Amounts or Unoffered
Class A-IO Unpaid Interest  Shortfall.  After the Subordination  Depletion Date,
Class A and Unoffered  Class A-IO Unpaid  Interest  Shortfalls will be allocated
pro rata  among the Class A and  Unoffered  Class A-IO  CitiCertificates  on the
basis of the respective  amounts of accrued  interest  thereon.  See "Summary of
Prospectus and Prospectus Supplement--Priority of Distributions" herein.

     On each Distribution Date on which the Pool Distribution Amount exceeds the
Class A Interest  Amount plus the  Distributable  Unoffered  Class A-IO Interest
Amount, any excess will then be allocated first to pay previously unpaid Class A
Subclass  Interest  Shortfall  Amounts of outstanding Class A Subclasses and the
Unoffered Class A-IO Unpaid Interest  Shortfall.  Such amounts will be allocated
among the then  outstanding  Class A  Subclasses  and the  Unoffered  Class A-IO
CitiCertificates  pro rata in  accordance  with the  respective  unpaid  Class A
Subclass  Interest  Shortfall 


                                      S-31
<PAGE>

Amounts and Unoffered Class A-IO Unpaid Interest Shortfall  immediately prior to
such   Distribution   Date.   See   "Summary  of   Prospectus   and   Prospectus
Supplement--Priority of Distributions" herein.

     On each Distribution  Date on which the Pool Distribution  Amount equals or
exceeds  the sum of (i)  the  Class M  Interest  Amount  and  (ii)  all  amounts
distributable  on  the  Class  A  and  Unoffered  Class  A-IO  CitiCertificates,
distributions in respect of interest to the Class M CitiCertificates  will equal
the Class M Interest Amount.

     If, on any Distribution Date, the Pool Distribution Amount is less than the
sum of (i) the Class M Interest  Amount and (ii) all amounts  senior in priority
of payment to such amount, the amount of interest  currently  distributed on the
Class M  CitiCertificates  will equal the Pool Distribution  Amount,  net of all
amounts  distributable  with a higher order of priority as provided  above under
"Summary of Prospectus and Prospectus  Supplement--Priority  of  Distributions."
Any  Class M  Unpaid  Interest  Shortfall  will be  added  to the  amount  to be
distributed to Class M CitiCertificates on subsequent  Distribution Dates to the
extent that the Pool Distribution  Amount is sufficient therefor and the related
Class M  CitiCertificates  are then outstanding.  No interest will accrue on any
Class M Unpaid Interest Shortfall.

     On each Distribution  Date on which the Pool Distribution  Amount equals or
exceeds  the sum of (i) the  Offered  Class B  Subclass  Interest  Amount for an
Offered  Class B Subclass and (ii) all amounts  senior in priority of payment to
the Offered Class B Subclass  Interest Amount based on the priorities  described
under   "Summary  of   Prospectus   and   Prospectus   Supplement--Priority   of
Distributions,"  distributions  in respect of interest to such  Offered  Class B
Subclass will equal its Offered Class B Subclass Interest Amount.

     If, on any Distribution Date, the Pool Distribution Amount is less than the
sum of (i) the Offered Class B Subclass  Interest  Amount for an Offered Class B
Subclass and (ii) all amounts senior in priority of payment to such amount,  the
amount of interest  currently  distributed on such Offered Class B Subclass will
equal the Pool  Distribution  Amount,  net of all amounts  distributable  with a
higher  order of priority as provided  above under  "Summary of  Prospectus  and
Prospectus  Supplement--Priority of Distributions." Any Offered Class B Subclass
Unpaid Interest  Shortfall will be added to the amount to be distributed to such
Offered Class B Subclass on subsequent Distribution Dates to the extent that the
Pool Distribution  Amount is sufficient therefor and the related Offered Class B
Subclass is then  outstanding.  No interest  will accrue on any Offered  Class B
Subclass Unpaid Interest Shortfall.

     If, on any Distribution Date, the Pool Distribution Amount is less than the
sum of all amounts  distributable  on the Class A, Unoffered Class A-IO, Class M
and Class B-1  CitiCertificates,  then the  Class B-2  CitiCertificates  and the
Unoffered Class B  CitiCertificates  will not be entitled to receive any amounts
in respect of interest or  principal.  If, on any  Distribution  Date,  the Pool
Distribution  Amount is less than the sum of all  amounts  distributable  on the
Class  A,   Unoffered   Class   A-IO,   Class  M,   Class   B-1  and  Class  B-2
CitiCertificates,  then  the  Unoffered  Class B  CitiCertificates  will  not be
entitled to receive any amounts in respect of interest or principal.  If, on any
Distribution  Date,  the Pool  Distribution  Amount  is less than the sum of all
amounts distributable on the Class A and Unoffered Class A-IO  CitiCertificates,
then the Class M and Class B  CitiCertificates  will not be  entitled to receive
any amounts in respect of interest or principal.

DISTRIBUTIONS IN REDUCTION OF STATED AMOUNT

     The Mortgage Loans will be divided into two groups:  the "Discount Mortgage
Loans,"  which will be comprised of all Mortgage  Loans with Note Rates,  net of
the Servicing Fee (in each case, the "NNR"), of less than 6.75% and the "Premium
Mortgage  Loans," which will be comprised of all Mortgage  Loans with NNRs equal
to or greater than 6.75%.

     Distributions in reduction of Stated Amount of the Class A CitiCertificates
will be made on each Distribution Date in an aggregate amount equal to the Class
A Principal  Distribution  Amount. The "Class A Principal  Distribution  Amount"
with respect to any  Distribution  Date will be equal to the amount of principal
distributed pursuant to clause (3) as set forth under "Summary of Prospectus and
Prospectus Supplement--Priority of Distributions" in an amount up to the Class A
Optimal Principal Amount.  Amounts  distributed in reduction of Stated Amount of
any Class A Subclass  will be allocated pro rata among all  CitiCertificates  of
such Class A Subclass.

     The  Class  M  CitiCertificates  will  be  entitled  to  receive,  on  each
Distribution Date, an amount up to the Class M Optimal  Distribution  Amount for
each date,  subject to the  priorities  and  conditions  set forth  above  under
"Summary of Prospectus and Prospectus  Supplement--Priority  of  Distributions."
The "Class M Optimal Distribution 


                                      S-32
<PAGE>

Amount"  for each  Distribution  Date  shall  equal  the sum of (i) the  Class M
Interest Amount,  (ii) the Class M Unpaid Interest Shortfall and (iii) the Class
M Optimal Principal Amount.

     The Class B CitiCertificates  will be entitled,  on each Distribution Date,
to the remaining  portion,  if any, of the applicable Pool Distribution  Amount,
after payment of the Class A Interest Amount, the Distributable  Unoffered Class
A-IO Interest Amount,  any unreimbursed Class A Unpaid Interest  Shortfall,  any
unreimbursed  Unoffered  Class  A-IO  Unpaid  Interest  Shortfall,  the  Class A
Principal  Distribution  Amount, the Class M Optimal Distribution Amount and (to
the extent of Available PO Loss Funds) any Unpaid PO Loss Amounts for such date.
Amounts so distributed to Class B  CitiCertificateholders  will not be available
to cover delinquencies or Realized Losses in respect of subsequent  Distribution
Dates.

     Holders of the  CitiCertificates  of each Offered  Class B Subclass will be
entitled  to receive,  on each  Distribution  Date,  an amount up to the Offered
Class B Subclass Optimal  Distribution Amount for such Class B Subclass for such
date, subject to the priorities and conditions set forth above under "Summary of
Prospectus and Prospectus  Supplement--Priority of Distributions".  The "Offered
Class B Subclass Optimal  Distribution  Amount" for each  Distribution  Date for
each Class B Subclass  shall equal the sum of (i) the  Offered  Class B Subclass
Interest  Amount for such Class B Subclass,  (ii) the  Offered  Class B Subclass
Unpaid Interest  Shortfall for such Class B Subclass and (iii) the Offered Class
B Subclass Optimal Principal Amount for such Class B Subclass.  The aggregate of
the Offered Class B Subclass Optimal  Distribution Amounts is the "Offered Class
B Optimal Distribution Amount."

     Holders of the Class A-6  CitiCertificates  will be  entitled to receive on
each Distribution Date, to the extent of the Pool Distribution  Amount remaining
after payment of the Class A Interest Amount, the Distributable  Unoffered Class
A-IO Interest Amount, any unreimbursed Class A Unpaid Interest Shortfall and any
unreimbursed  Unoffered Class A-IO Unpaid Interest Shortfall,  a distribution in
reduction of their Stated  Amount in an amount equal to the Class A PO Principal
Amount. The "Class A PO Principal Amount" with respect to each Distribution Date
will be an amount equal to the sum of (i) the  applicable  PO  Percentage of (A)
all  scheduled  payments of  principal  due on each  outstanding  Mortgage  Loan
(including  each defaulted  Mortgage Loan,  other than a Liquidated  Loan,  with
respect to which the related Mortgaged  Property has been acquired by the Trust)
on the first day of the month in which the Distribution Date occurs, less (B) if
the Bankruptcy Coverage Termination Date has occurred,  the principal portion of
Debt Service  Reductions,  (ii) the  applicable  PO  Percentage  of the Adjusted
Balance of each  Mortgage  Loan which,  during the month  preceding the month of
such  Distribution Date was repurchased by the Issuer, as described in "Appendix
A: The Mortgage Loans and  CitiMortgageCertificates--Assignment of Loans" in the
Prospectus,  (iii) the applicable PO Percentage of the aggregate net Liquidation
Proceeds  on all  Mortgage  Loans  that  became  Liquidated  Loans  during  such
preceding  month,  less the amounts  allocable to principal of any  unreimbursed
advances  previously  made by the  Servicer or the Trustee  with respect to such
Liquidated  Loans and the portion of the net Liquidation  Proceeds  allocable to
interest,  (iv) the  applicable PO  Percentage  of the Adjusted  Balance of each
Mortgage Loan which was the subject of a principal prepayment in full during the
month  preceding the month of such  Distribution  Date and (v) the applicable PO
Percentage of all partial principal  prepayments received by the Servicer in the
month preceding the month in which such  Distribution  Date occurs. In addition,
holders of the Class A-6 CitiCertificates will be entitled to reimbursement,  to
the extent of Available PO Loss Funds,  of the "Unpaid PO Loss  Amounts,"  which
shall equal the  difference  between (a) the sum of the PO Loss Amounts for that
and prior  Distribution  Dates and (b) amounts  distributed in  reimbursement of
Unpaid PO Loss Amounts on all prior Distribution Dates.

     Holders of the Class A CitiCertificates (other than the Class A-5 and Class
A-6 CitiCertificates) (the "Group I Class A CitiCertificates")  will be entitled
to receive on each  Distribution  Date,  to the extent of the Pool  Distribution
Amount remaining after payment of the Class A Interest Amount, the Distributable
Unoffered Class A-IO Interest Amount and any unreimbursed  Class A and Unoffered
Class A-IO Unpaid Interest Shortfalls, a distribution in reduction of the Stated
Amount thereof in an amount equal to the Group I Non-PO  Principal  Amount.  The
"Group I Non-PO Principal Amount" with respect to each Distribution Date will be
an  amount  equal to the sum of (i) the  Group I  Percentage  of the  applicable
Non-PO  Percentage  of (A)  all  scheduled  payments  of  principal  due on each
outstanding  Mortgage Loan (including each defaulted Mortgage Loan, other than a
Liquidated Loan, with respect to which the related  Mortgaged  Property has been
acquired  by the Trust) on the first day of the month in which the  Distribution
Date occurs, less (B) if the Bankruptcy Coverage  Termination Date has occurred,
the principal  portion of Debt Service  Reductions,  (ii) the Group I Prepayment
Percentage of the applicable  Non-PO  Percentage of the Adjusted Balance of each
Mortgage Loan which,  during the month preceding the month of such  Distribution
Date 


                                      S-33
<PAGE>

was  repurchased by the Issuer,  as described in "Appendix A: The Mortgage Loans
and CitiMortgage Certificates--Assignment of Loans" in the Prospectus, (iii) the
Group  I  Prepayment  Percentage  of the  applicable  Non-PO  Percentage  of the
aggregate net Liquidation  Proceeds on all Mortgage Loans that became Liquidated
Loans during such preceding  month,  less the amounts  allocable to principal of
any  unreimbursed  advances  previously made by the Servicer or the Trustee with
respect to such Liquidated Loans and the portion of the net Liquidation Proceeds
allocable to interest,  (iv) the Group I Prepayment Percentage of the applicable
Non-PO  Percentage  of the Adjusted  Balance of each Mortgage Loan which was the
subject of a principal  prepayment in full during the month  preceding the month
of such  Distribution  Date and (v) the  Group I  Prepayment  Percentage  of the
applicable Non-PO Percentage of all partial  principal  prepayments  received by
the Servicer in the month  preceding the month in which such  Distribution  Date
occurs.

     Holders of the Class A-5  CitiCertificates  will be  entitled to receive on
each Distribution Date, to the extent of the Pool Distribution  Amount remaining
after payment of the Class A Interest Amount, the Distributable  Unoffered Class
A-IO  Interest  Amount and any  unreimbursed  Class A and  Unoffered  Class A-IO
Unpaid  Interest  Shortfalls,  a distribution  in reduction of the Stated Amount
thereof in an amount equal to the Group II Non-PO Principal  Amount.  The "Group
II Non-PO Principal  Amount" with respect to each  Distribution  Date will be an
amount equal to the sum of (i) the Group II Percentage of the applicable  Non-PO
Percentage  of (A) all scheduled  payments of principal due on each  outstanding
Mortgage Loan (including each defaulted  Mortgage Loan,  other than a Liquidated
Loan, with respect to which the related Mortgaged  Property has been acquired by
the Trust) on the first day of the month in which the Distribution  Date occurs,
less (B) if the Bankruptcy Coverage Termination Date has occurred, the principal
portion of Debt Service Reductions,  (ii) the Group II Prepayment  Percentage of
the applicable  Non-PO  Percentage of the Adjusted Balance of each Mortgage Loan
which,  during  the  month  preceding  the month of such  Distribution  Date was
repurchased  by the Issuer,  as described in "Appendix A: The Mortgage Loans and
CitiMortgageCertificates--Assignment  of  Loans"  in the  Prospectus,  (iii) the
Group II  Prepayment  Percentage  of the  applicable  Non-PO  Percentage  of the
aggregate net Liquidation  Proceeds on all Mortgage Loans that became Liquidated
Loans during such preceding  month,  less the amounts  allocable to principal of
any  unreimbursed  advances  previously made by the Servicer or the Trustee with
respect to such Liquidated Loans and the portion of the net Liquidation Proceeds
allocable to interest, (iv) the Group II Prepayment Percentage of the applicable
Non-PO  Percentage  of the Adjusted  Balance of each Mortgage Loan which was the
subject of a principal  prepayment in full during the month  preceding the month
of such  Distribution  Date and (v) the Group II  Prepayment  Percentage  of the
applicable Non-PO Percentage of all partial  principal  prepayments  received by
the Servicer in the month  preceding the month in which such  Distribution  Date
occurs.

     The "Class A Optimal  Principal Amount" for a Distribution Date is equal to
the sum of the Group I Non-PO  Principal  Amount,  the Group II Non-PO Principal
Amount and the Class A PO  Principal  Amount for such  Distribution  Date.  With
respect  to each  Discount  Mortgage  Loan,  the "PO  Percentage"  is equal to a
fraction,  expressed as a percentage,  the numerator of which is 6.75% minus the
NNR of such Mortgage Loan and the denominator of which is 6.75%; with respect to
each  Premium  Mortgage  Loan,  the PO  Percentage  is 0%. With  respect to each
Mortgage  Loan,  the "Non-PO  Percentage"  is equal to 100% minus the related PO
Percentage;  therefore,  for each Premium Mortgage Loan the Non-PO Percentage is
100%.

     On each Distribution  Date prior to the  Subordination  Depletion Date, the
Class A Principal  Distribution  Amount will be allocated  on each  Distribution
Date as follows:  first, the Class A PO Principal  Amount for such  Distribution
Date will be allocated to the Class A-6 CitiCertificates until the Stated Amount
thereof has been reduced to zero;  second,  the Group II Non-PO Principal Amount
will be  allocated  to the Class A-5  CitiCertificates  until the Stated  Amount
thereof has been reduced to zero; and third, the Group I Non-PO Principal Amount
will be allocated (a)  concurrently,  approximately  96.2648937362% to the Class
A-1   CitiCertificates   and  approximately   3.7351062638%  to  the  Class  A-2
CitiCertificates  until the Stated Amount of the Class A-1  CitiCertificates has
been reduced to zero,  (b)  concurrently,  approximately  96.2648937362%  to the
Class A-3  CitiCertificates  and  approximately  3.7351062638%  to the Class A-2
CitiCertificates  until the Stated Amount of the Class A-2  CitiCertificates has
been  reduced to zero,  (c) to the Class A-3  CitiCertificates  until the Stated
Amount   thereof   has  been   reduced   to  zero  and  (d)  to  the  Class  A-4
CitiCertificates until the Stated Amount thereof has been reduced to zero.

     The principal  balance of the Class A  CitiCertificates  will be reduced on
any Distribution  Date by each Class A Subclass's share of Excess Special Hazard
Losses,  Excess Fraud Losses and Excess Bankruptcy Losses. See "--Subordination"
below.


                                      S-34
<PAGE>

     The "Class M Optimal  Principal  Amount" with respect to each  Distribution
Date will be an amount  equal to the sum of (i) the  Class M  Percentage  of the
applicable Non-PO  Percentage of (A) all scheduled  payments of principal due on
each  outstanding  Mortgage Loan (including each defaulted  Mortgage Loan, other
than a Liquidated Loan, with respect to which the related Mortgaged Property has
been  acquired  by the  Trust)  on the  first  day of the  month  in  which  the
Distribution Date occurs, less (B) if the Bankruptcy  Coverage  Termination Date
has occurred, the principal portion of Debt Service Reductions, (ii) the Class M
Prepayment  Percentage  of the  applicable  Non-PO  Percentage  of the  Adjusted
Balance of each  Mortgage  Loan which,  during the month  preceding the month of
such Distribution Date, was repurchased by the Issuer, as described in "Appendix
A: The Mortgage Loans and CitiMortgage Certificates--Assignment of Loans" in the
Prospectus,  (iii) the Class M Prepayment  Percentage of the  applicable  Non-PO
Percentage of the aggregate net Liquidation  Proceeds on all Mortgage Loans that
became  Liquidated Loans during such preceding month, less the amounts allocable
to principal of any unreimbursed advances previously made by the Servicer or the
Trustee  with  respect  to such  Liquidated  Loans  and the  portion  of the net
Liquidation  Proceeds  allocable  to  interest,  (iv)  the  Class  M  Prepayment
Percentage of the applicable  Non-PO  Percentage of the Adjusted Balance of each
Mortgage Loan which was the subject of a principal prepayment in full during the
month  preceding  the  month  of such  Distribution  Date  and  (v) the  Class M
Prepayment  Percentage  of the  applicable  Non-PO  Percentage  of  all  partial
principal  prepayments received by the Servicer in the month preceding the month
in which such Distribution Date occurs.

     The "Offered  Class B Subclass  Optimal  Principal  Amount" with respect to
each Distribution Date for a particular Class B Subclass will be an amount equal
to the sum of (i) the  Offered  Class B  Subclass  Percentage  for such  Class B
Subclass of the applicable  Non-PO  Percentage of (A) all scheduled  payments of
principal  due on each  outstanding  Mortgage  Loan  (including  each  defaulted
Mortgage Loan,  other than a Liquidated  Loan, with respect to which the related
Mortgaged Property has been acquired by the Trust) on the first day of the month
in which the  Distribution  Date  occurs,  less (B) if the  Bankruptcy  Coverage
Termination Date has occurred, the principal portion of Debt Service Reductions,
(ii) the Offered Class B Subclass Prepayment Percentage for such Offered Class B
Subclass of the  applicable  Non-PO  Percentage of the Adjusted  Balance of each
Mortgage Loan which,  during the month preceding the month of such  Distribution
Date  was  repurchased  by the  Issuer,  (iii)  the  Offered  Class  B  Subclass
Prepayment Percentage for such Offered Class B Subclass of the applicable Non-PO
Percentage of the aggregate net Liquidation  Proceeds on all Mortgage Loans that
became  Liquidated Loans during such preceding month, less the amounts allocable
to principal of any unreimbursed advances previously made by the Servicer or the
Trustee  with  respect  to such  Liquidated  Loans  and the  portion  of the net
Liquidation  Proceeds  allocated to interest,  (iv) the Offered Class B Subclass
Prepayment Percentage for such Offered Class B Subclass of the applicable Non-PO
Percentage  of the Adjusted  Balance of each Mortgage Loan which was the subject
of a principal  prepayment in full during the month  preceding the month of such
Distribution Date and (v) the Offered Class B Subclass Prepayment Percentage for
such Offered Class B Subclass of the applicable Non-PO Percentage of all partial
principal  prepayments received by the Servicer in the month preceding the month
in which such Distribution Date occurs.

     In addition to the foregoing, in the event that there is any recovery of an
amount in respect of principal which had previously been allocated as a Realized
Loss, the amount of such recovery will be allocated  among the then  outstanding
CitiCertificates  first to the Class A  CitiCertificates,  to the extent, in the
manner and up to the amount of any unreimbursed Realized Losses allocated to the
Class A CitiCertificates,  then to the Class M CitiCertificates  and then to the
Class B  CitiCertificates.  As among the Class B  Subclasses,  the amount of the
recovery  remaining  after  any  allocation  thereof  to the Class A and Class M
CitiCertificates  will be  allocated  first to the Class  B-1  CitiCertificates,
second to the Class B-2  CitiCertificates,  in each case to the extent and up to
the  amount  of any  unreimbursed  Realized  Losses  allocated  to such  Class B
Subclass, and then, in like manner, to the remaining Class B Subclasses.

     A  "Liquidated  Loan" is a Mortgage Loan with respect to which the Servicer
has determined that all recoverable liquidation and insurance proceeds have been
received or the Issuer has accepted payment by a Mortgagor in consideration  for
the  release of the  Mortgage  in an amount  equal to less than the  outstanding
principal  balance  of the  Mortgage  Loan as a result of a  determination  that
liquidation expenses for such Mortgage Loan would exceed the amount by which the
cash portion of such payment is less than the outstanding  principal  balance of
such Mortgage Loan.

     A "Liquidated  Loan Loss" on a Liquidated  Loan is equal to the excess,  if
any, of (i) the unpaid principal  balance of such Liquidated Loan, plus interest
thereon in accordance  with the  amortization  schedule at the Note Rate through
the last day of the month in which such Mortgage Loan was liquidated,  over (ii)
net  Liquidation  Proceeds.  For 


                                      S-35
<PAGE>

purposes  of  calculating  the  amount  of any  Liquidated  Loan  Loss,  all net
Liquidation  Proceeds (after  reimbursement  to the Servicer and the Trustee for
any previously  unreimbursed related advances and related liquidation  expenses)
will be applied  first to  accrued  interest  and then to the  unpaid  principal
balance of the Liquidated Loan.  "Liquidation Proceeds" are all amounts received
by the Servicer in connection with the  liquidation of defaulted  Mortgage Loans
or property acquired in respect thereof. A "Special Hazard Loss" is a Liquidated
Loan Loss occurring as a result of a Special Hazard.  "Special  Hazards" are all
risks of direct physical loss or damage which occur from any cause excluding (a)
the   extraordinary   events   referred   to  in  the   last   paragraph   under
"--Subordination--Allocation of Losses" and (b) any risk of direct physical loss
or damage that is insured against under either (i) the  Mortgagor's  homeowner's
policy,  fire  insurance  policy,  flood  insurance (if otherwise  required) and
extended  coverage  policies (if any), as required to be maintained  pursuant to
the  applicable  Mortgage  Loan or (ii) hazard  insurance  with  respect to such
Mortgaged  Property which is required to be maintained by the Servicer under the
Pooling  Agreement.  A "Fraud  Loss" is a  Liquidated  Loan Loss  incurred  on a
Liquidated  Loan as to which there was fraud in the origination of such Mortgage
Loan. A "Bankruptcy Loss" is a loss attributable to certain actions which may be
taken by a bankruptcy  court in  connection  with a Mortgage  Loan,  including a
reduction by a bankruptcy court of the principal balance of or the interest rate
on a Mortgage Loan or an extension of its maturity.  A "Debt Service  Reduction"
means a reduction in the amount of monthly  payments  due to certain  bankruptcy
proceedings,  but does not include any permanent  forgiveness  of  principal.  A
"Deficient  Valuation"  with  respect to a Mortgage  Loan means a valuation by a
court  of  the  Mortgaged  Property  in an  amount  less  than  the  outstanding
indebtedness  under the Mortgage  Loan or any reduction in the amount of monthly
payments that result in a permanent forgiveness of principal, which valuation or
reduction  results  from  a  bankruptcy   proceeding.   Liquidated  Loan  Losses
(including  Special  Hazard Losses and Fraud Losses) and  Bankruptcy  Losses are
referred to herein as "Realized Losses."

     The "Class A Percentage" for any  Distribution  Date occurring prior to the
Subordination  Depletion Date is the  percentage,  which in no event will exceed
100%,  obtained by dividing the Class A Stated  Amount  (after  subtracting  the
Class A Subclass Stated Amount of the Class A-6  CitiCertificates)  (the "Non-PO
Class A Amount") by the Non-PO Pool Adjusted Balance, both as of the immediately
preceding   Distribution  Date  (after  taking  into  account  distributions  in
reduction of Stated Amount and the  allocation of any losses on such date).  The
Class A  Percentage  for the first  Distribution  Date is expected to be between
94.25% and  96.25%.  The Class A  Percentage  will  decrease  as a result of the
allocation of certain unscheduled  payments in respect of principal according to
the  Class  A  Prepayment  Percentage  for a  specified  period  to the  Class A
CitiCertificates  and will  increase as a result of the  allocation  of Realized
Losses to the Subordinated CitiCertificates.

     The "Class A Prepayment  Percentage"  for any  Distribution  Date occurring
during the five years beginning on the first  Distribution  Date will, except as
provided below, equal 100%.  Thereafter,  the Class A Prepayment Percentage will
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 Class A
CitiCertificates  (other  than the Class  A-5 and  Class  A-6  CitiCertificates)
while, in the absence of Realized Losses,  increasing the respective interest in
the Trust evidenced by the Class M and Class B CitiCertificates.  Increasing the
respective interest of the Class M and Class B CitiCertificates relative to that
of the Class A CitiCertificates  is intended to preserve the availability of the
subordination  provided  by  the  Class  M and  Class  B  CitiCertificates.  See
"--Subordination" below.

     The Class A  Prepayment  Percentage  for any  Distribution  Date  occurring
during the periods set forth below will be as follows:

 PERIOD (DATES INCLUSIVE)             CLASS A PREPAYMENT PERCENTAGE
 ------------------------             -----------------------------

March 2003-February 2004 ....     Class A Percentage plus 70% of the
                                      Subordinated CitiCertificate Percentage

March 2004-February 2005 ....     Class A Percentage plus 60% of the
                                      Subordinated CitiCertificate Percentage

March 2005-February 2006 ....     Class A Percentage plus 40% of the
                                      Subordinated CitiCertificate Percentage

March 2006-February 2007 ....     Class A Percentage plus 20% of the
                                      Subordinated CitiCertificate Percentage

March 2007 and thereafter ...     Class A Percentage


                                      S-36
<PAGE>

     Notwithstanding   the   foregoing,   if  the  Class  A  Percentage  on  any
Distribution Date exceeds the initial Class A Percentage, the Class A Prepayment
Percentage  for  such   Distribution  Date  will  once  again  equal  100%.  See
"--Prepayment  and  Yield  Considerations"  herein  and  "Prepayment  and  Yield
Considerations" in the Prospectus.

     In addition,  no reduction of the Class A Prepayment  Percentage will occur
on a Distribution  Date unless the following tests (the  "Reduction  Tests") are
satisfied:  (i) as of the first Distribution Date as to which any such reduction
applies,  either (A) the Adjusted  Balance of the Mortgage  Loans  delinquent 60
days or more  (including,  for this purpose,  Mortgage Loans in foreclosure  and
real estate owned by the Trust as a result of Mortgagor  default)  averaged over
the last six months, as a percentage of the sum of the Class M Stated Amount and
the Class B Stated Amount averaged over the last six months, is less than 50% or
(B) the Adjusted  Balance of such  delinquent  Mortgage Loans averaged over such
period,  as a percentage of the Adjusted  Balance of all Mortgage Loans averaged
over such  period,  is less than 2%, and (ii)  cumulative  Realized  Losses with
respect  to  the  Mortgage  Loans  are  less  than  (a)  with  respect  to  each
Distribution  Date in March 2003 through  February 2004,  inclusive,  30% of the
aggregate Initial Stated Amount of the Class M and Class B CitiCertificates (the
"Original  Subordinated  Stated Amount"),  (b) with respect to each Distribution
Date in  March  2004  through  February  2005,  inclusive,  35% of the  Original
Subordinated  Stated Amount, (c) with respect to each Distribution Date in March
2005 through February 2006,  inclusive,  40% of the Original Subordinated Stated
Amount,  (d)  with  respect  to each  Distribution  Date in March  2006  through
February 2007,  inclusive,  45% of the Original  Subordinated Stated Amount, and
(e) with respect to each Distribution Date in March 2007 and thereafter,  50% of
the Original Subordinated Stated Amount.

     The "Group I Percentage" on any  Distribution  Date prior to the earlier of
March  2003 and the  Group I Final  Distribution  Date  will  equal  the Class A
Percentage for such  Distribution  Date. On any Distribution  Date commencing in
March  2003,  the Group I  Percentage  will equal the sum of (a) the  percentage
obtained by dividing  the  aggregate  Stated  Amounts of all the Group I Class A
CitiCertificates  (the  "Group I Stated  Amounts")  immediately  preceding  such
Distribution  Date by the  Non-PO  Pool  Adjusted  Balance,  and  (b) the  Shift
Percentage  multiplied  by the  percentage  obtained by dividing  the  aggregate
Stated  Amount of the  Class A-5  CitiCertificates  immediately  preceding  such
Distribution Date by the Non-PO Pool Adjusted Balance, all as of the immediately
preceding   Distribution  Date  (after  taking  into  account  distributions  in
reduction  of Stated  Amount and the  allocation  of any  losses on such  date);
provided,  that if on the Group I Final  Distribution  Date the amount available
for  distribution  in  respect  of the  Group I Class A  CitiCertificates  would
otherwise  exceed the remaining  aggregate Stated Amounts of the Group I Class A
CitiCertificates, (1) the Group I Percentage on such date will be limited to the
percentage  necessary  to  reduce  the  Stated  Amounts  of the  Group I Class A
CitiCertificates  to zero, and (2) any amounts that would have been allocable to
the Group I Class A  CitiCertificates  absent the limitation in clause (1) above
will be distributable to the Class A-5 CitiCertificates.  The Group I Percentage
on any Distribution  Date after the date on which the Stated Amount of the Group
I Class  A  CitiCertificates  has  been  reduced  to zero  (the  "Group  I Final
Distribution  Date") will be zero. The initial Group I Percentage is expected to
be approximately 95.25%.

     The "Group II Percentage" on any  Distribution  Date will equal the Class A
Percentage  minus the Group I  Percentage  (without  regard to clause (1) in the
preceding paragraph) for such Distribution Date. The initial Group II Percentage
will be 0%.

     The "Shift  Percentage"  for any  Distribution  Date  occurring  during the
periods set forth below will be as follows:

                                                                       SHIFT
   PERIOD (DATES INCLUSIVE)                                          PERCENTAGE
   ------------------------                                          ----------

March 2003-February 2004 ......................................         70%
March 2004-February 2005 ......................................         60%
March 2005-February 2006 ......................................         40%
March 2006-February 2007 ......................................         20%
March 2007 and thereafter .....................................          0%


                                      S-37
<PAGE>

     The "Group I Prepayment  Percentage"  on any  Distribution  Date  occurring
during the periods set forth below will be as follows:

   PERIOD (DATES INCLUSIVE)                   GROUP I PREPAYMENT PERCENTAGE
   ------------------------                   -----------------------------

March 1998-February 2003 ..........       100%.

March 2003-February 2004 ..........       Group I Percentage plus the sum of (a)
                                            the    product   of   70%   of   the
                                            Subordinated         CitiCertificate
                                            Percentage   and  a   fraction   the
                                            numerator  of which  is the  Group I
                                            Stated  Amounts and the  denominator
                                            of  which  is  the  Non-PO  Class  A
                                            Amount (the "Group I Fraction")  and
                                            (b)  70%  of  the  product  of (i) a
                                            fraction  the  numerator of which is
                                            the Class A Subclass  Stated  Amount
                                            of the  Class  A-5  CitiCertificates
                                            and the  denominator of which is the
                                            Non-PO Class A Amount (the "Group II
                                            Fraction")   and  (ii)  70%  of  the
                                            Subordinated         CitiCertificate
                                            Percentage.

March 2004-February 2005 ..........      Group I Percentage  plus the sum of (a)
                                            the    product   of   60%   of   the
                                            Subordinated         CitiCertificate
                                            Percentage  and the Group I Fraction
                                            and  (b) 60% of the  product  of (i)
                                            the Group II  Fraction  and (ii) 60%
                                            of the Subordinated  CitiCertificate
                                            Percentage.

March 2005-February 2006 ..........      Group I Percentage  plus the sum of (a)
                                            the    product   of   40%   of   the
                                            Subordinated         CitiCertificate
                                            Percentage  and the Group I Fraction
                                            and  (b) 40% of the  product  of (i)
                                            the Group II  Fraction  and (ii) 40%
                                            of the Subordinated  CitiCertificate
                                            Percentage.

March 2006-February 2007 ..........      Group I Percentage  plus the sum of (a)
                                            the    product   of   20%   of   the
                                            Subordinated         CitiCertificate
                                            Percentage  and the Group I Fraction
                                            and  (b) 20% of the  product  of (i)
                                            the Group II  Fraction  and (ii) 20%
                                            of the Subordinated  CitiCertificate
                                            Percentage.

March 2007 and thereafter .........      Group I Percentage;

provided,  that if on the Group I Final  Distribution  Date the amount available
for  distribution  in  respect  of the  Group I Class A  CitiCertificates  would
otherwise  exceed the remaining  aggregate Stated Amounts of the Group I Class A
CitiCertificates,  (1) the Group I  Prepayment  Percentage  on such date will be
limited to the percentage  necessary to reduce the Stated Amounts of the Group I
Class A  CitiCertificates  to zero,  and (2) any  amounts  that  would have been
allocable  to the Group I Class A  CitiCertificates  absent  the  limitation  in
clause (1) above will be distributable to the Class A-5 CitiCertificates.  On or
after the Group I Final  Distribution  Date,  the Group I Prepayment  Percentage
will be zero.

     Notwithstanding  the  foregoing,  if on any  Distribution  Date the Class A
Prepayment  Percentage has not been reduced because the Reduction Tests have not
been  satisfied  or has  increased  for  any  reason,  the  Group  I  Prepayment
Percentage  for such  Distribution  Date will be increased by an amount equal to
the  amount by which the  Subordinated  Prepayment  Percentage  would  have been
increased had the Class A Prepayment Percentage been so reduced or by the amount
the Class A Prepayment Percentage increased, as the case may be.

     The "Group II Prepayment  Percentage" on any  Distribution  Date will equal
the  Class A  Prepayment  Percentage  minus the  Group I  Prepayment  Percentage
(without  regard to  clause  (1) in the  second  preceding  paragraph)  for such
Distribution  Date, except that on any Distribution Date after the Group I Final
Distribution  Date,  the Group II Prepayment  Percentage  will equal the Class A
Prepayment Percentage.


                                      S-38
<PAGE>

     The  "Subordinated  CitiCertificate  Percentage" for any Distribution  Date
will be calculated as the difference between 100% and the Class A Percentage for
such date. The  Subordinated  CitiCertificate  Percentage on the Closing Date is
expected to be between 3.75% and 5.75%.

     The "Subordinated  Prepayment Percentage" for any Distribution Date will be
calculated as the difference between 100% and the Class A Prepayment  Percentage
for each date.

     The "Class M  Percentage"  shall be equal to the  percentage  calculated by
multiplying (i) the Subordinated  CitiCertificate Percentage by (ii) a fraction,
the numerator of which is the Class M Stated Amount and the denominator of which
is the sum of the Class M Stated  Amount and the Class B Subclass  Stated Amount
of each Class B Subclass  eligible  to receive  distributions  in  reduction  of
Stated Amount,  each as of the immediately  preceding  Distribution  Date (after
taking  into  account  distributions  in  reduction  of  Stated  Amount  and the
allocation of losses on such date).

     The  "Class M  Prepayment  Percentage"  shall  be  equal to the  percentage
calculated by multiplying (i) the Subordinated  Prepayment  Percentage by (ii) a
fraction,  the  numerator  of  which  is the  Class  M  Stated  Amount  and  the
denominator  of which is the sum of the  Class M Stated  Amount  and the Class B
Subclass   Stated   Amount  of  each  Class  B  Subclass   eligible  to  receive
distributions  in  reduction  of  Stated  Amount,  each  as of  the  immediately
preceding   Distribution  Date  (after  taking  into  account  distributions  in
reduction of Stated Amount and the allocation of losses on such date).

     The "Class B Percentage"  for any  Distribution  Date will be calculated as
the difference between the Subordinated CitiCertificate Percentage and the Class
M Percentage.

     The  "Class B  Prepayment  Percentage"  for any  Distribution  Date will be
calculated as the difference between the Subordinated  Prepayment Percentage and
the Class M Prepayment Percentage.

     The "Offered Class B Subclass Percentage" for each Offered Class B Subclass
shall be equal  to, on any  Distribution  Date,  the  percentage  calculated  by
multiplying  (i) the Class B  Percentage  by (ii) a fraction,  the  numerator of
which is the Offered  Class B Subclass  Stated  Amount of such  Offered  Class B
Subclass and the  denominator  of which is the aggregate  Stated  Amounts of the
Class B  Subclasses  (eligible to receive  distributions  in reduction of Stated
Amount  for  such  Distribution  Date),  each  as of the  immediately  preceding
Distribution  Date (after  taking into  account  distributions  in  reduction of
Stated Amount and the  allocation of any losses on such date);  provided that in
the event a  particular  Offered  Class B  Subclass  is  ineligible  to  receive
distributions  in  reduction of Stated  Amount on such  Distribution  Date,  its
Offered Class B Subclass Percentage will be 0% for such Distribution Date.

     The "Offered Class B Subclass Prepayment Percentage" for each Offered Class
B  Subclass  shall  be  equal  to,  on any  Distribution  Date,  the  percentage
calculated  by  multiplying  (i) the  Class B  Prepayment  Percentage  by (ii) a
fraction,  the  numerator of which is the Stated  Amount of such Offered Class B
Subclass and the  denominator  of which is the aggregate  Stated  Amounts of the
Class B  Subclasses  (eligible to receive  distributions  in reduction of Stated
Amount  for  such  Distribution  Date),  each  as of the  immediately  preceding
Distribution Date (after taking into account distribution in reduction of Stated
Amount and the  allocation  of any losses on such  date);  provided  that in the
event an Offered  Class B Subclass is  ineligible  to receive  distributions  in
reduction of Stated  Amount on such  Distribution  Date,  such  Offered  Class B
Subclass Prepayment Percentage will be 0% for such Distribution Date.

     In  the  event  that  on  any  Distribution   Date,  the  Current  Class  M
Subordination Level is less than the original Class M Subordination  Level, then
the  Class B  CitiCertificates  will not be  entitled  to any  distributions  in
reduction  of  Stated  Amount  on  such   Distribution  Date  and  all  of  such
distributions will instead be allocated in reduction of the Stated Amount of the
Class M  CitiCertificates.  The original Class M Subordination Level is expected
to be between 1.25% and 3.25%.

     In  the  event  that  on  any  Distribution   Date,  the  Current  Class  M
Subordination  Level equals or exceeds its original  percentage  but the Current
Class B-1 Subordination  Level is less than the original Class B-1 Subordination
Level,  then the Class B-2, Class B-3, Class B-4 and Class B-5  CitiCertificates
will not be entitled to any  distributions in reduction of Stated Amount on such
Distribution  Date and all of such  distributions  will  instead be allocated in
reduction  of the Stated  Amount of the Class M and Class B-1  CitiCertificates.
The original Class B-1  Subordination  Level is expected to be between 0.90% and
1.90%.


                                      S-39
<PAGE>

     In the event that on any  Distribution  Date, the Current Class M and Class
B-1  Subordination  Levels equal or exceed their  original  percentages  but the
Current  Class  B-2  Subordination  Level is less  than the  original  Class B-2
Subordination   Level,   then  the   Class   B-3,   Class   B-4  and  Class  B-5
CitiCertificates  will not be  entitled to any  distributions  in  reduction  of
Stated Amount on such  Distribution  Date,  and all of such  distributions  will
instead be allocated  in  reduction of the Stated  Amounts of the Class M, Class
B-1 and Class B-2  CitiCertificates.  The original Class B-2 Subordination Level
is expected to be between 0.65% and 1.05%.

     In the event that on any Distribution  Date, the Current Class M, Class B-1
and Class B-2  Subordination  Levels equal or exceed their original  percentages
but the Current Class B-3  Subordination  Level is less than the original  Class
B-3 Subordination Level, then the Class B-4 and Class B-5 CitiCertificates  will
not be entitled  to any  distributions  in  reduction  of Stated  Amount on such
Distribution  Date, and all of such  distributions  will instead be allocated in
reduction of the Stated  Amounts of the Class M, Class B-1,  Class B-2 and Class
B-3 CitiCertificates.  The original Class B-3 Subordination Level is expected to
be between 0.30% and 0.70%.

     In the event that on any Distribution Date, the Current Class M, Class B-1,
Class B-2 and Class B-3  Subordination  Levels  equal or exceed  their  original
percentages  but the  Current  Class  B-4  Subordination  Level is less than the
original Class B-4 Subordination Level, then the Class B-5 CitiCertificates will
not be entitled  to any  distributions  in  reduction  of Stated  Amount on such
Distribution  Date, and all of such  distributions  will instead be allocated in
reduction of the Stated  Amounts of the Class M, Class B-1, Class B-2, Class B-3
and Class B-4  CitiCertificates.  The original Class B-4 Subordination  Level is
expected to be between 0.10% and 0.50%.

     On any  Distribution  Date on which the  Stated  Amounts of the Class M and
Class B CitiCertificates have been reduced to zero, the Class A Non-PO Principal
Amount  will be  distributed  pro rata to each Class A Subclass  (other than the
Class A-6  CitiCertificates)  notwithstanding the priorities described above and
in  the  second   paragraph   under   "Summary  of  Prospectus   and  Prospectus
Supplement--Distributions   in  Reduction  of  Stated   Amount  of  the  Offered
CitiCertificates."  Under the  circumstances  described in this  paragraph,  the
amount  allocated  to each such Class A Subclass  will be  distributed  pro rata
among holders of CitiCertificates of such Class A Subclass.

SUBORDINATION

     The  rights  of  holders  of  the  Class  M  CitiCertificates   to  receive
distributions  with respect to the Mortgage Loans will be  subordinated  to such
rights of holders of Class A and Unoffered  Class A-IO  CitiCertificates  to the
extent described below, the rights of holders of the Class B CitiCertificates to
receive distributions with respect to the Mortgage Loans will be subordinated to
such  rights  of  holders  of  Class  A,  Unoffered   Class  A-IO  and  Class  M
CitiCertificates  to the extent described below and the rights of the holders of
the  Class  B  Subclasses  with  numerically  higher   designations  to  receive
distributions  with respect to the Mortgage Loans will be  subordinated  to such
rights of holders of Class B Subclasses with numerically  lower  designations to
the extent  described  below.  This  subordination  is  intended  to enhance the
likelihood of timely receipt by holders of the Class A and Unoffered  Class A-IO
CitiCertificates  (to the extent of the subordination of the Class M and Class B
CitiCertificates),   the  Class  M  CitiCertificates   (to  the  extent  of  the
subordination of the Class B  CitiCertificates)  and the Class B Subclasses with
numerically  lower  numbers (to the extent of the  subordination  of the Class B
Subclasses with  numerically  higher  designations)  of the full amount of their
scheduled  monthly  payments of interest and principal and to afford  protection
against  Realized  Losses,  as more fully  described  below.  If Realized Losses
exceed the credit support provided through subordination to the Class A or Class
M CitiCertificates or numerically lower Class B Subclasses,  as the case may be,
or if Excess  Special Hazard  Losses,  Excess Fraud Losses or Excess  Bankruptcy
Losses  occur,  all or a portion of such  losses  will be borne by such Class A,
Unoffered Class A-IO, Class M or Class B  CitiCertificates,  as the case may be,
as are then outstanding.

     The protection  afforded to holders of the Class A and Unoffered Class A-IO
CitiCertificates  by means of the subordination  feature will be accomplished by
the  preferential  right of such holders to receive,  prior to any  distribution
being  made  on a  Distribution  Date in  respect  of the  Class  M and  Class B
CitiCertificates,  the amounts in reduction of Stated Amount and of interest due
the Class A and Unoffered Class A-IO CitiCertificateholders on each Distribution
Date out of the Pool  Distribution  Amount  with  respect  to such date and,  if
necessary,  by the right of such holders to receive future  distributions on the
Mortgage Loans that would  otherwise have been payable to holders of Class M and
Class B CitiCertificates.


                                      S-40
<PAGE>

     The Class M CitiCertificates  will be entitled,  on each Distribution Date,
to the remaining  portion,  if any, of the applicable Pool Distribution  Amount,
after payment of the Class A Interest Amount, the Distributable  Unoffered Class
A-IO Interest Amount,  any unreimbursed  Class A and Unoffered Class A-IO Unpaid
Interest  Shortfall,  the Class A Optimal  Principal  Amount  and (to the extent
described herein) any Unpaid PO Loss Amounts.  Amounts so distributed to Class M
CitiCertificateholders  will not be available to cover delinquencies or Realized
Losses in respect of subsequent Distribution Dates.

     The Class B CitiCertificates  will be entitled,  on each Distribution Date,
to the remaining  portion,  if any, of the applicable Pool Distribution  Amount,
after payment of the Class A Interest Amount, the Distributable  Unoffered Class
A-IO Interest Amount,  any unreimbursed  Class A and Unoffered Class A-IO Unpaid
Interest  Shortfall,  the Class A Optimal Principal Amount, the Class M Interest
Amount, any unreimbursed Class M Unpaid Interest Shortfall,  the Class M Optimal
Principal  Amount  and (to the  extent  described  herein)  any  Unpaid  PO Loss
Amounts.  Amounts so distributed to Class B  CitiCertificateholders  will not be
available to cover  delinquencies  or Realized  Losses in respect of  subsequent
Distribution Dates.

     The  protection  afforded  to  holders  of  the  Class  B  Subclasses  with
numerically  lower  designations by means of the  subordination  feature will be
accomplished by the preferential right of such holders to receive,  prior to any
distribution  being  made on a  Distribution  Date  in  respect  of the  Class B
Subclasses with  numerically  higher  designations,  the amounts in reduction of
Stated  Amount  and of  interest  due the  holders  of Class B  Subclasses  with
numerically  lower  designations  on  each  Distribution  Date  out of the  Pool
Distribution  Amount with respect to such date (after all  required  payments to
Class A,  Unoffered  Class  A-IO and  Class M  CitiCertificates  and any Class B
Subclasses  with a  numerically  lower  designation  have  been  made)  and,  if
necessary,  by the right of such holders to receive future  distributions on the
Mortgage Loans that would  otherwise have been payable to holders of the Class B
Subclasses with numerically higher designations.

     The  Class  B  Subclasses  with  numerically  higher  designations  will be
entitled,  on each Distribution Date, to the remaining  portion,  if any, of the
applicable  Pool  Distribution  Amount,  after  payment  of the Class A Interest
Amount, the Distributable Unoffered Class A-IO Interest Amount, any unreimbursed
Class A and Unoffered Class A-IO Unpaid Interest Shortfall,  the Class A Optimal
Principal Amount,  the Class M Interest Amount,  any unreimbursed Class M Unpaid
Interest  Shortfall,  the Class M Optimal Principal  Amount,  any Unpaid PO Loss
Amounts (but only to extent of Available PO Loss Funds) and any distributions in
reduction  of Stated  Amount or interest  as to which a Class B Subclass  with a
lower numerical  designation is due on such date. Amounts so distributed to such
Class B  CitiCertificateholders  will not be available to cover delinquencies or
Realized Losses in respect of subsequent Distribution Dates.

Allocation of Losses

     For any  Distribution  Date, any "Non-PO Loss Amount" shall be equal to the
applicable Non-PO Percentage of each Realized Loss (other than an Excess Special
Hazard Loss, Excess Fraud Loss or Excess Bankruptcy Loss) on a Mortgage Loan.

     Non-PO  Loss  Amounts  will not be  allocated  to  holders  of the  Class A
CitiCertificates until the date on which the amount of principal payments on the
Mortgage Loans to which holders of the Class M and Class B CitiCertificates  are
entitled has been reduced to zero (the "Subordination  Depletion Date"). PO Loss
Amounts  will be allocated  to the Class A-6  CitiCertificates  until the Stated
Amount  thereof  has been  reduced  to zero.  However,  until the  Subordination
Depletion  Date,  PO Loss Amounts will  ultimately be borne first by the Class B
Subclasses in reverse numerical order and then by the Class M  CitiCertificates,
since such losses are reimbursable from certain funds otherwise distributable on
the Class B and Class M CitiCertificates.

     The subordination of the Unoffered Class B CitiCertificates in favor of the
Class A,  Unoffered  Class A-IO,  Class M and Offered Class B  CitiCertificates,
that of the Class B-2  CitiCertificates in favor of the Class A, Unoffered Class
A-IO,  Class  M  and  Class  B-1   CitiCertificates,   that  of  the  Class  B-1
CitiCertificates  in favor of the  Class A,  Unoffered  Class  A-IO and  Class M
CitiCertificates, and that of the Class M CitiCertificates in favor of the Class
A and Unoffered  Class A-IO  CitiCertificates,  is effected by the allocation of
Non-PO Loss Amounts first to the Unoffered Class B  CitiCertificates,  second to
the Class B-2 CitiCertificates, third to the Class B-1 CitiCertificates and then
to the Class M CitiCertificates,  until, in each case, the respective  Unoffered
Class B Stated  Amount,  Class B-2 Stated  Amount,  Class B-1 Stated  Amount and
Class M Stated  Amount have been  reduced to zero.  Non-PO Loss  Amounts will be
allocated to the Class M  CitiCertificates  only after the Stated  Amount of the
Class B  CitiCertificates  has been reduced 


                                      S-41
<PAGE>


to zero. Non-PO Loss Amounts will be allocated to the Class B-1 CitiCertificates
only  after  the  Stated  Amounts  of  the  Class  B-2  and  Unoffered  Class  B
CitiCertificates  have been  reduced to zero and  Non-PO  Loss  Amounts  will be
allocated to the Class B-2 CitiCertificates  only after the Stated Amount of the
Unoffered Class B CitiCertificates  has been reduced to zero. The effect of such
allocation  of Non-PO Loss Amounts  (other than Excess  Special  Hazard  Losses,
Excess  Fraud  Losses or Excess  Bankruptcy  Losses)  to the  Unoffered  Class B
CitiCertificates  and then to the Offered  Class B  CitiCertificates  will be to
reduce future distributions to such Class B CitiCertificates,  and in particular
to the Unoffered Class B CitiCertificates,  and to increase the relative portion
of  distributions  allocable  to the Class A,  Unoffered  Class A-IO and Class M
CitiCertificates   and  the  Offered   Class  B   CitiCertificates.   After  the
Subordination   Depletion   Date,   the  Class  A  and   Unoffered   Class  A-IO
CitiCertificates will bear all Realized Losses.

     The  allocation of the principal  portion of Realized  Losses (other than a
Debt Service  Reduction,  Excess Special Hazard Losses,  Excess Fraud Losses and
Excess  Bankruptcy  Losses)  will be  effected,  as a result of the  priority of
distributions  described  above,  by the  adjustment of the Stated Amount of the
most subordinate of the Class B Subclasses then outstanding (that is, the Stated
Amount of the Class B Subclasses in reverse  numerical  order),  and then to the
Class M  CitiCertificates,  in such amounts as are necessary to cause the sum of
the  Class A Stated  Amount,  the Class M Stated  Amount  and the Class B Stated
Amount to equal the Pool Adjusted Balance.

     The  interest  portion  of any  Realized  Loss  occurring  on or after  the
Subordination  Depletion Date will be allocated  among the  outstanding  Class A
Subclasses  and  the  Unoffered  Class  A-IO  CitiCertificates,  in  the  manner
described  in the second  succeeding  paragraph.  The  principal  portion of any
Realized Losses occurring on or after the  Subordination  Depletion Date will be
allocated as follows:  the applicable PO Percentage of any Realized Loss will be
allocated to the Class A-6  CitiCertificates  and the Non-PO  Percentage  of any
Realized Loss will be allocated among the other outstanding Class A Subclasses.

     Allocations of (i) the principal portion of Debt Service  Reductions,  (ii)
the  interest  portion of Realized  Losses  (other than  Excess  Special  Hazard
Losses, Excess Fraud Losses and Excess Bankruptcy Losses) and (iii) any interest
shortfalls  resulting from  delinquencies for which neither the Servicer nor the
Trustee  advances  will result from the  priority  of  distribution  of the Pool
Distribution   Amount   first  to  the  Class  A  and   Unoffered   Class   A-IO
CitiCertificates  as described  below,  second to the Class M  CitiCertificates,
third  to  the   Class   B-1   CitiCertificates,   fourth   to  the   Class  B-2
CitiCertificates and finally to the Unoffered Class B CitiCertificates.

     The principal  portion of any Excess Special  Hazard  Losses,  Excess Fraud
Losses or Excess Bankruptcy Losses will be allocated as follows:  the applicable
PO  Percentage  of such  Realized  Losses  shall be  allocated  to the Class A-6
CitiCertificates  and the applicable  Non-PO  Percentage of such Realized Losses
shall be allocated on a pro rata basis among the Class A Subclasses  (other than
the Class  A-6  CitiCertificates)  and the Class M and Class B  CitiCertificates
based on the  aggregate  Stated  Amount  of each  such  Class or  Subclass.  The
interest  portion of such  losses  with  respect to the  Mortgage  Loans will be
allocated on a pro rata basis among the  CitiCertificates  (other than the Class
A-6  CitiCertificates)  based on accrued  interest on such Class.  Any  interest
losses so allocated to the Class A CitiCertificates  will be allocated among the
outstanding  Class A Subclasses pro rata based on interest  accrued.  Any losses
allocated  to a  particular  Class  A  Subclass  will  be  allocated  among  the
outstanding CitiCertificates within such Class A Subclass pro rata in accordance
with their respective Stated Amount, as the case may be. Any losses so allocated
to the Unoffered Class A-IO or Class M CitiCertificates  will be allocated among
the outstanding  Unoffered Class A-IO or Class M  CitiCertificates,  as the case
may be, in accordance with their notional amount or respective Stated Amount, as
the case may be. Any losses so allocated to the Class B CitiCertificates will be
allocated among the  outstanding  Class B Subclasses pro rata in accordance with
their then  outstanding  Class B Subclass  Stated  Amounts  with  respect to the
principal  portion of such  losses  and the  amounts of  interest  accrued  with
respect  to the  interest  portion  of such  losses,  and among the  outstanding
CitiCertificates  within each Class B Subclass pro rata in accordance with their
respective Stated Amounts.

     The interest  portion of Excess Special Hazard Losses,  Excess Fraud Losses
and Excess Bankruptcy Losses allocable to the CitiCertificates will be allocated
by reducing the applicable  amount of accrued  interest  payable on the Class A,
Unoffered Class A-IO, Class M and Class B CitiCertificates.

     As described above, the Pool Distribution  Amount for any Distribution Date
will  include  current  receipts  (other than certain  unscheduled  payments and
recoveries in respect of principal) from the Mortgage Loans otherwise payable to
holders of the Class M and Class B  CitiCertificates.  In  general,  if the Pool
Distribution Amount is not sufficient to cover the amount of the Class A Optimal
Principal Amount on a particular  Distribution  Date (other than with respect to
the Class A-6  CitiCertificates),  the  percentage of principal  payments on the
Mortgage  Loans to which  


                                      S-42
<PAGE>

holders of the Class A CitiCertificates  (other than Class A-6 CitiCertificates)
will  be  entitled  (i.e.,  the  Class  A  Percentage)  on and  after  the  next
Distribution Date will be  proportionately  increased,  thereby  reducing,  as a
relative  matter,   the  respective   interest  of  the  Class  M  and  Class  B
CitiCertificates  in future payments of principal on the Mortgage Loans.  Such a
shortfall could occur, for example,  if a considerable  number of Mortgage Loans
were to become Liquidated Loans in a particular month.

     Special Hazard Losses will be allocated  first to the Class B Subclasses in
reverse  numerical  order,  and then to the Class M  CitiCertificates,  but only
prior to the Special Hazard  Termination  Date. The "Special Hazard  Termination
Date" will be the date on which such Special  Hazard  Losses  exceed the Special
Hazard Loss Amount (or, if earlier,  the  Subordination  Depletion Date). On the
Closing  Date,  the "Special  Hazard Loss  Amount" with respect  thereto will be
equal to  approximately  1.17% of the Initial  Mortgage Loan Balance.  As of any
Distribution Date, the Special Hazard Loss Amount will equal the initial Special
Hazard  Loss  Amount less the sum of (A) any  Special  Hazard  Losses  since the
Cut-Off Date and (B) the  Adjustment  Amount.  The  "Adjustment  Amount" on each
anniversary  of the Cut-Off  Date will be equal to the amount,  if any, by which
the  Special  Hazard  Amount,  without  giving  effect to the  deduction  of the
Adjustment Amount for such anniversary, exceeds the greater of (i) 1.00% (or, if
greater  than 1.00%,  the highest  percentage  of  Mortgage  Loans by  principal
balance in any  California  ZIP code)  times the Pool  Adjusted  Balance on such
anniversary  and (ii) twice the  Adjusted  Balance of the single  Mortgage  Loan
having the largest  Adjusted  Balance.  Special  Hazard  Losses in excess of the
Special Hazard Loss Amount are "Excess Special Hazard Losses."

     Fraud Losses will be allocated  first to the Class B Subclasses  in reverse
numerical order, and then to the Class M CitiCertificates, but only prior to the
Fraud Coverage  Termination Date. The "Fraud Coverage  Termination Date" will be
the date on which  such  Fraud  Losses  exceed the Fraud  Loss  Amount  (or,  if
earlier, the Subordination Depletion Date). On the Closing Date, the "Fraud Loss
Amount" with respect thereto will be equal to approximately 1.00% of the Initial
Mortgage Loan Balance.  On each  Distribution  Date  thereafter,  the Fraud Loss
Amount will equal (X) prior to the second  anniversary  of the  Cut-Off  Date an
amount  equal to the initial  Fraud Loss Amount  minus the  aggregate  amount of
Fraud Losses since the Cut-Off Date up to the related  Determination  Date,  and
(Y) from the second through the fifth anniversary of the Cut-Off Date, an amount
equal to (1) the  lesser of (a) the  Fraud  Loss  Amount  as of the most  recent
anniversary of the Cut-Off Date and (b) 0.50% of the Pool Adjusted Balance as of
the most recent  anniversary of the Cut-Off Date minus (2) the aggregate  amount
of Fraud Losses since the most recent anniversary of the Cut-Off Date. After the
fifth  anniversary  of the Cut-Off Date,  the Fraud Loss Amount will be zero and
thereafter  any Fraud Losses will be shared pro rata among the  CitiCertificates
as described above.  Fraud Losses in excess of the Fraud Loss Amount are "Excess
Fraud Losses."

     Bankruptcy  Losses will be  allocated  first to the Class B  Subclasses  in
reverse  numerical  order,  and then to the Class M  CitiCertificates,  but only
prior to the Bankruptcy  Coverage  Termination  Date. The  "Bankruptcy  Coverage
Termination  Date" will be the date on which such  Bankruptcy  Losses exceed the
Bankruptcy Loss Amount (or, if earlier,  the  Subordination  Depletion Date). On
the Closing  Date,  the  "Bankruptcy  Loss Amount" with respect  thereto will be
equal to  approximately  0.05% of the Initial  Mortgage Loan Balance.  As of any
Distribution  Date  prior to the first  anniversary  of the  Cut-Off  Date,  the
Bankruptcy  Loss Amount will equal the initial  Bankruptcy Loss Amount minus the
aggregate  amount of Bankruptcy  Losses since the Cut-Off Date up to the related
Determination  Date.  As  of  any  Distribution  Date  on  or  after  the  first
anniversary  of the  Cut-Off  Date,  the  Bankruptcy  Loss Amount will equal the
excess,  if any, of (1) the lesser of (a) the  Bankruptcy  Loss Amount as of the
business day next preceding the most recent  anniversary of the Cut-Off Date and
(b) $100,000  minus (2) the  aggregate  amount of  Bankruptcy  Losses since such
anniversary.  The  Bankruptcy  Loss  Amount  and  the  related  coverage  levels
described  above may be reduced or modified upon written  confirmation  from S&P
and Fitch that such  reduction or  modification  will not  adversely  affect the
then-current  ratings assigned to the  CitiCertificates by S&P and Fitch. Such a
reduction  or  modification  may  adversely  affect  the  coverage  provided  by
subordination with respect to Bankruptcy Losses.  Bankruptcy Losses in excess of
the Bankruptcy Loss Amount are "Excess Bankruptcy Losses."

     The exact amounts of Special  Hazard  Losses,  Fraud Losses and  Bankruptcy
Losses to be allocated first to the Unoffered Class B  CitiCertificates,  second
to the Class B-2  CitiCertificates,  third to the Class B-1 CitiCertificates and
then to the Class M CitiCertificates (but in each case only prior to the related
termination date) will be those amounts required by the rating agency (or rating
agencies) rating the CitiCertificates as a condition of the ratings as set forth
above  under  "Summary  of  Prospectus  and  Prospectus  Supplement--Certificate
Ratings."

     Notwithstanding  the foregoing,  the provisions  relating to  subordination
will not be  applicable  in  connection  with a  Bankruptcy  Loss so long as the
Servicer has  notified  the Trustee in writing  that the Servicer is  diligently

                                      S-43
<PAGE>

pursuing any remedies that may exist in connection with the  representations and
warranties  made  regarding  the related  Mortgage Loan and when (A) the related
Mortgage  Loan is not in default with regard to the payments due  thereunder  or
(B)  delinquent  payments of principal and interest  under the related  Mortgage
Loan and any premiums on any applicable standard hazard insurance policy and any
related escrow payments in respect of such Mortgage Loan are being advanced on a
current basis by the Servicer,  in either case without giving effect to any Debt
Service Reduction.

     Since  the  aggregate  Initial  Stated  Amount  of the  Class M and Class B
CitiCertificates  will be  substantially  less than the Initial Stated Amount of
the Class A  CitiCertificates,  the risk of Special Hazard Losses,  Fraud Losses
and  Bankruptcy  Losses  will be  separately  borne by the  Class M and  Class B
CitiCertificates  to a lesser extent (i.e.,  only up to the Special  Hazard Loss
Amount,  Fraud Loss Amount and Bankruptcy  Loss Amount,  respectively)  than the
risk of other Realized Losses,  which they will bear to the full extent of their
respective  Initial  Stated  Amounts.  See  "Appendix A: The Mortgage  Loans and
CitiMortgageCertificates" in the Prospectus.

     The  benefits  of  the  subordination   described  herein  will  not  cover
delinquencies and losses resulting from certain extraordinary events,  including
(i)  hostile  or  warlike  action  in time of peace or war;  (ii) the use of any
weapon of war employing  atomic fission or radioactive  force whether in time of
peace or war; and (iii) insurrection,  rebellion,  revolution,  civil war or any
usurped power or action taken by any  governmental  authority in preventing such
occurrences (but not including looting or rioting occurring not in time of war).
Losses  and  delinquencies  resulting  from such  extraordinary  events  will be
allocated among the Class A Subclasses,  Unoffered Class A-IO  CitiCertificates,
Class M  CitiCertificates  and Class B  Subclasses  in the same manner as Excess
Special Hazard Losses, Excess Fraud Losses and Excess Bankruptcy Losses.

WEIGHTED AVERAGE LIVES OF THE OFFERED CITICERTIFICATES

     Weighted average life refers to the average amount of time from the date of
issuance  of  such  CitiCertificate  until  each  dollar  of  principal  of such
CitiCertificate  will be repaid to the investor.  The weighted  average lives of
the Offered  CitiCertificates  will be influenced by the rate at which principal
on the Mortgage  Loans is paid.  Principal  payments on mortgage loans may be in
the form of scheduled  amortization or prepayments  (for this purpose,  the term
"prepayment"  includes  prepayments  and  liquidations  due to  default or other
dispositions  of mortgage  loans).  Prepayments  on mortgage  loans are commonly
measured by a prepayment  standard or model.  The model used in this  Prospectus
Supplement  (the  "Prepayment  Model") is based on an assumed rate of prepayment
each  month  relative  to the then  unpaid  principal  balance  of a pool of new
mortgage loans.  100% of the Prepayment  Model assumes  prepayment rates of 0.2%
per annum of the then unpaid  principal  balance of such  mortgage  loans in the
first month of the life of the 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 the mortgage loans,  100% of the Prepayment Model assumes a constant
prepayment rate of 6.0% per annum.

     As used in the following  tables,  "0% of the Prepayment  Model" assumes no
prepayments on the Mortgage Loans;  "250% of the Prepayment  Model" assumes such
Mortgage  Loans will  prepay at rates  equal to 250% of the  Prepayment  Model's
assumed prepayment rates and so forth.

     There is no assurance,  however, that prepayment of the Mortgage Loans will
conform to any level of the Prepayment Model. The rate of principal  payments on
pools of mortgage  loans is  influenced  by a variety of  economic,  geographic,
social and other factors, including the level of mortgage interest rates and the
rate at which homeowners sell their homes or default on their mortgage loans. In
general,  if prevailing  interest  rates fall  significantly  below the interest
rates on the  Mortgage  Loans,  the  Mortgage  Loans are likely to be subject to
higher prepayment rates than if prevailing rates remain at or above the interest
rates on such  Mortgage  Loans.  Conversely,  if  interest  rates rise above the
interest rates on such Mortgage Loans,  the rate of prepayment would be expected
to decrease.  Other  factors  affecting  prepayment  of mortgage  loans  include
changes  in  mortgagors'   housing  needs,   job  transfers,   unemployment  and
mortgagors' net equity in the mortgaged  properties.  In addition, as homeowners
move or default on their mortgage  loans,  the houses are generally sold and the
mortgage loans prepaid,  although some of the mortgage loans may be assumed by a
new buyer. Because the amount of distributions in reduction of the Stated Amount
of each Class A Subclass,  the Class M CitiCertificates and each Offered Class B
Subclass  will depend on the rate of repayment  (including  prepayments)  of the
Mortgage Loans, the date by which the Stated Amount of any Class A Subclass, the
Class M  CitiCertificates  or any Offered Class B Subclass is reduced to zero is
likely to occur earlier than its respective Last Scheduled Distribution Date.


                                      S-44
<PAGE>

     THE WEIGHTED AVERAGE LIVES OF THE OFFERED CITICERTIFICATES,  AS WELL AS THE
YIELDS TO  MATURITY  OF THE  OFFERED  CITICERTIFICATES  TO THE EXTENT  THAT SUCH
CITICERTIFICATES  ARE PURCHASED AT A DISCOUNT OR PREMIUM,  WILL BE  PARTICULARLY
SENSITIVE  TO THE RATE OF  PRINCIPAL  PAYMENTS  (INCLUDING  PREPAYMENTS)  ON THE
MORTGAGE LOANS.

     As  described   above  under   "Summary  of   Prospectus   and   Prospectus
Supplement--Distributions   in  Reduction  of  Stated   Amount  of  the  Offered
CitiCertificates,"   on  each   Distribution   Date   holders  of  the  Class  A
CitiCertificates (other than the Class A-6 CitiCertificates) will be entitled to
receive the Class A Percentage of the  applicable  Non-PO  Percentage of all the
Scheduled  Principal,  and the Class A Prepayment  Percentage of the  applicable
Non-PO  Percentage of the net proceeds of Liquidated Loans and of the prepayment
principal.  This will have the effect of  accelerating  the  amortization of the
Class  A  CitiCertificates  while,  in the  absence  of  losses  in  respect  of
Liquidated Loans,  increasing the respective  interest in the Trust evidenced by
the Class M and Class B CitiCertificates.

     The  following  table  has  been  prepared  on the  basis  of the  expected
characteristics  of the Mortgage  Loans as set forth under  "Description  of the
Pool and the Mortgaged  Properties" herein. The percentages and weighted average
lives in the  following  table  were  determined  assuming  that  (i)  scheduled
interest  and  principal  payments on the  Mortgage  Loans will be received in a
timely  manner and  prepayments  are made at the  indicated  percentages  of the
Prepayment  Model set forth in the table;  (ii) each Discount  Mortgage Loan and
Premium  Mortgage  Loan will have an original term to maturity of 360 months and
359  months,  respectively,  and a  weighted  average  remaining  term to stated
maturity of 359 months and 357 months,  respectively,  will bear interest at the
rate of approximately 6.805% and 7.558% per annum,  respectively and have a rate
of interest passed through to holders of the  CitiCertificates  of approximately
6.555%  and  7.308%,  respectively;  (iii) CMSI does not  exercise  its right of
optional  termination;  (iv) the Initial  Stated Amounts of the Class B-3, Class
B-4 and Class B-5 CitiCertificates  are approximately  $726,000,  $416,000,  and
$623,338,  respectively;  (v) the  Initial  Mortgage  Loan  Balance of  Discount
Mortgage  Loans and Premium  Mortgage  Loans are  $5,071,031  and  $202,599,233,
respectively,  and for each Class A Subclass,  the Class M CitiCertificates  and
each Offered Class B Subclass, the Initial Stated Amount and the Stated Rate are
as set forth on the cover page  hereof;  (vi) the Closing  Date is February  26,
1998; and (vii) distributions to holders of the CitiCertificates will be made on
the 25th day of each month commencing March 1998 (the foregoing  assumptions are
referred to herein as the "Structuring Assumptions").

     There are likely to be  discrepancies  between the  characteristics  of the
actual Mortgage Loans and the  characteristics  of the Mortgage Loans assumed in
preparing the following  table. Any such discrepancy may have an effect upon the
percentages of the Initial Stated Amount  outstanding  (and the weighted average
lives) of the Class A Subclasses,  the Class M CitiCertificates  and the Offered
Class B Subclasses set forth in the table.  In addition,  to the extent that the
actual  Mortgage  Loans have  characteristics  that differ from those assumed in
preparing the table set forth below, the Stated Amount of each Class A Subclass,
the Class M CitiCertificates and each Offered Class B Subclass may be reduced to
zero earlier or later than indicated by such table.

     It is not likely that (i) all of the Mortgage Loans will have the remaining
terms to stated  maturity  assumed,  (ii) the Mortgage  Loans will prepay at the
indicated  percentages of the Prepayment  Model set forth in the table, or (iii)
all of the Discount  Mortgage  Loans or all of the Premium  Mortgage  Loans will
have  the  respective   mortgage  interest  rates  assumed  by  the  Structuring
Assumptions.  In  addition,  the  diverse  remaining  terms to  maturity  of the
Mortgage  Loans (which may include  recently  originated  Mortgage  Loans) could
produce  slower  distributions  in reduction of Stated Amounts than indicated in
the table at the various  percentages of the Prepayment  Model specified even if
the weighted  average  remaining  terms to stated maturity of the Mortgage Loans
are those assumed.

     Based on the  foregoing  assumptions,  the  following  table  indicates the
projected  weighted  average  life  of  each  Class  A  Subclass,  the  Class  M
CitiCertificates and each Offered Class B Subclass and sets forth the percentage
of  the  Initial   Stated  Amount  of  each  Class  A  Subclass,   the  Class  M
CitiCertificates  and each Offered  Class B Subclass  that would be  outstanding
after each of the dates shown at the  indicated  percentages  of the  Prepayment
Model.



                                      S-45
<PAGE>

   PERCENT OF INITIAL STATED AMOUNT OUTSTANDING FOR EACH CLASS OR SUBCLASS OF
                          OFFERED CITICERTIFICATES AT
       THE RESPECTIVE PERCENTAGES OF THE PREPAYMENT MODEL SET FORTH BELOW:

<TABLE>
<CAPTION>
                                 CLASS A-1 CITICERTIFICATES         CLASS A-2 CITICERTIFICATES         CLASS A-3 CITICERTIFICATES
                               ------------------------------     ------------------------------     ------------------------------
Payment Date                   0%   125%   250%   400%   500%     0%   125%   250%   400%   500%     0%   125%   250%   400%   500%
- ------------                   --   ----   ----   ----   ----     --   ----   ----   ----   ----     --   ----   ----   ----   ----
<S>                           <C>    <C>    <C>    <C>    <C>    <C>    <C>    <C>    <C>    <C>    <C>    <C>    <C>    <C>    <C>
Initial ...................   100    100    100    100    100    100    100    100    100    100    100    100    100    100    100

February 25, 1999 .........    99     95     92     88     85     99     96     93     90     88    100    100    100    100    100

February 25, 2000 .........    97     86     76     63     55     98     89     80     70     63    100    100    100    100    100

February 25, 2001 .........    96     74     55     34     22     96     79     63     46     35    100    100    100    100    100

February 25, 2002 .........    94     63     37     12      0     95     70     48     27     15    100    100    100    100     92

February 25, 2003 .........    92     53     22      0      0     93     61     36     13      2    100    100    100     81     27

February 25, 2004 .........    90     44     11      0      0     92     54     26      4      0    100    100    100     39      0

February 25, 2005 .........    88     36      2      0      0     90     47     19      0      0    100    100    100     11      0

February 25, 2006 .........    86     29      0      0      0     88     41     13      0      0    100    100     81      0      0

February 25, 2007 .........    83     23      0      0      0     86     36      9      0      0    100    100     60      0      0

February 25, 2008 .........    81     18      0      0      0     84     32      6      0      0    100    100     45      0      0

February 25, 2009 .........    78     13      0      0      0     82     28      3      0      0    100    100     33      0      0

February 25, 2010 .........    76      8      0      0      0     80     24      1      0      0    100    100     22      0      0

February 25, 2011 .........    73      4      0      0      0     77     21      0      0      0    100    100     13      0      0

February 25, 2012 .........    69      *      0      0      0     75     17      0      0      0    100    100      5      0      0

February 25, 2013 .........    66      0      0      0      0     72     15      0      0      0    100     88      0      0      0

February 25, 2014 .........    62      0      0      0      0     68     12      0      0      0    100     75      0      0      0

February 25, 2015 .........    58      0      0      0      0     65      9      0      0      0    100     63      0      0      0

February 25, 2016 .........    53      0      0      0      0     61      7      0      0      0    100     52      0      0      0

February 25, 2017 .........    49      0      0      0      0     58      5      0      0      0    100     41      0      0      0

February 25, 2018 .........    44      0      0      0      0     53      3      0      0      0    100     32      0      0      0

February 25, 2019 .........    38      0      0      0      0     49      1      0      0      0    100     23      0      0      0

February 25, 2020 .........    32      0      0      0      0     44      0      0      0      0    100     15      0      0      0

February 25, 2021 .........    26      0      0      0      0     38      0      0      0      0    100      7      0      0      0

February 25, 2022 .........    19      0      0      0      0     33      0      0      0      0    100      *      0      0      0

February 25, 2023 .........    11      0      0      0      0     27      0      0      0      0    100      0      0      0      0

February 25, 2024 .........     3      0      0      0      0     20      0      0      0      0    100      0      0      0      0

February 25, 2025 .........     0      0      0      0      0     13      0      0      0      0     79      0      0      0      0

February 25, 2026 .........     0      0      0      0      0      5      0      0      0      0     42      0      0      0      0

February 25, 2027 .........     0      0      0      0      0      0      0      0      0      0      2      0      0      0      0

February 25, 2028 .........     0      0      0      0      0      0      0      0      0      0      0      0      0      0      0

Weighted Average
 Life (Years)(1) ..........   17.1   6.0    3.5    2.5    2.2    18.9   8.0    4.5    3.0    2.6    27.8   18.5   10.1   5.9    4.7
</TABLE>

- ----------
(1)  The   weighted   average   life  of  each  Class  or  Subclass  of  Offered
     CitiCertificates  is  determined  by (i)  multiplying  the  amount  of each
     distribution  in reduction of Stated Amount by the number of years from the
     date  of  issuance  of  the   Offered   CitiCertificates   to  the  related
     Distribution  Date,  (ii) adding the results and (iii)  dividing the sum by
     the  Initial  Stated  Amount  of the  Class  or  Subclass  of  the  Offered
     CitiCertificates.

*    Indicates an amount above zero and less than 0.5% of Initial  Stated Amount
     is outstanding.



                                      S-46
<PAGE>

   PERCENT OF INITIAL STATED AMOUNT OUTSTANDING FOR EACH CLASS OR SUBCLASS OF
                        OFFERED CITICERTIFICATES AT THE
        RESPECTIVE PERCENTAGES OF THE PREPAYMENT MODEL SET FORTH BELOW:

<TABLE>
<CAPTION>
                                 CLASS A-4 CITICERTIFICATES         CLASS A-5 CITICERTIFICATES          CLASS A-6 CITICERTIFICATES
                              --------------------------------    -------------------------------    -------------------------------
Payment Date                   0%    125%   250%   400%   500%     0%   125%   250%   400%   500%     0%   125%   250%   400%   500%
- ------------                  ---    ----   ----   ----   ----    ---   ----   ----   ----   ----    ---   ----   ----   ----   ----
<S>                           <C>    <C>    <C>    <C>    <C>    <C>    <C>    <C>    <C>    <C>    <C>    <C>    <C>    <C>    <C>
Initial ...................   100    100    100    100    100    100    100    100    100    100    100    100    100    100    100

February 25, 1999 .........   100    100    100    100    100    100    100    100    100    100     99     97     95     93     91

February 25, 2000 .........   100    100    100    100    100    100    100    100    100    100     98     91     85     78     73

February 25, 2001 .........   100    100    100    100    100    100    100    100    100    100     97     84     72     59     51

February 25, 2002 .........   100    100    100    100    100    100    100    100    100    100     95     76     60     44     35

February 25, 2003 .........   100    100    100    100    100    100    100    100    100    100     94     70     50     33     24

February 25, 2004 .........   100    100    100    100     73    100     97     95     91     88     92     63     42     25     17

February 25, 2005 .........   100    100    100    100     11     99     93     88     80     73     91     58     35     18     11

February 25, 2006 .........   100    100    100     81      0     98     88     78     66     51     89     52     29     14      8

February 25, 2007 .........   100    100    100     53      0     96     81     67     51     33     87     47     24     10      5

February 25, 2008 .........   100    100    100     40      0     94     74     56     38     23     85     43     20      8      4

February 25, 2009 .........   100    100    100     29      0     92     67     47     28     16     83     39     17      6      3

February 25, 2010 .........   100    100    100     22      0     90     60     39     21     11     81     35     14      4      2

February 25, 2011 .........   100    100    100     16      0     87     54     32     16      7     79     31     11      3      1

February 25, 2012 .........   100    100    100     12      0     85     48     26     11      5     76     28      9      2      1

February 25, 2013 .........   100    100     95      9      0     82     43     22      8      3     73     25      8      2      1

February 25, 2014 .........   100    100     78      6      0     79     39     18      6      2     70     22      6      1      *

February 25, 2015 .........   100    100     63      5      0     75     34     14      4      1     67     20      5      1      *

February 25, 2016 .........   100    100     51      3      0     72     30     12      3      1     64     17      4      1      *

February 25, 2017 .........   100    100     41      2      0     68     26      9      2      1     60     15      3      *      *

February 25, 2018 .........   100    100     33      2      0     63     23      7      2      *     56     13      3      *      *

February 25, 2019 .........   100    100     26      1      0     59     20      6      1      *     52     11      2      *      *

February 25, 2020 .........   100    100     20      1      0     54     17      5      1      *     48      9      2      *      *

February 25, 2021 .........   100    100     15      1      0     49     14      3      1      *     43      8      1      *      *

February 25, 2022 .........   100    100     12      *      0     43     11      3      *      *     38      6      1      *      *

February 25, 2023 .........   100     79      8      *      0     37      9      2      *      *     33      5      1      *      *

February 25, 2024 .........   100     60      6      *      0     30      7      1      *      *     27      4      *      *      *

February 25, 2025 .........   100     42      4      *      0     23      5      1      *      *     21      3      *      *      *

February 25, 2026 .........   100     26      2      *      0     15      3      *      *      *     14      2      *      *      *

February 25, 2027 .........   100     11      1      *      0      7      1      *      *      *      7      1      *      *      *

February 25, 2028 .........     0      0      0      0      0      0      0      0      0      0      0      0      0      0      0

Weighted Average
 Life (Years)(1) ..........   29.4   26.7   19.1   10.4   6.4    21.5   15.0   11.8   9.8    8.7    19.7   10.3   6.6    4.6    3.8
</TABLE>


- ----------
(1)  The   weighted   average   life  of  each  Class  or  Subclass  of  Offered
     CitiCertificates  is  determined  by (i)  multiplying  the  amount  of each
     distribution  in reduction of Stated Amount by the number of years from the
     date  of  issuance  of  the   Offered   CitiCertificates   to  the  related
     Distribution  Date,  (ii) adding the results and (iii)  dividing the sum by
     the  Initial  Stated  Amount  of the  Class  or  Subclass  of  the  Offered
     CitiCertificates.

*    Indicates an amount above zero and less than 0.5% of Initial  Stated Amount
     is outstanding.


                                      S-47
<PAGE>


   PERCENT OF INITIAL STATED AMOUNT OUTSTANDING FOR EACH CLASS OR SUBCLASS OF
                        OFFERED CITICERTIFICATES AT THE
        RESPECTIVE PERCENTAGES OF THE PREPAYMENT MODEL SET FORTH BELOW:

<TABLE>
<CAPTION>
                                  CLASS M CITICERTIFICATES          CLASS B-1 CITICERTIFICATES         CLASS B-2 CITICERTIFICATES
                              -------------------------------    -------------------------------    -------------------------------
Payment Date                   0%   125%   250%   400%   500%     0%   125%   250%   400%   500%     0%   125%   250%   400%   500%
- ------------                  ---   ----   ----   ----   ----    ---   ----   ----   ----   ----    ---   ----   ----   ----   ----
<S>                           <C>    <C>   <C>     <C>    <C>    <C>    <C>    <C>    <C>    <C>    <C>    <C>    <C>    <C>    <C>
Initial ...................   100    100   100     100    100    100    100    100    100    100    100    100    100    100    100

February 25, 1999 .........    99     99     99     99     99     99     99     99     99     99     99     99     99     99     99

February 25, 2000 .........    98     98     98     98     98     98     98     98     98     98     98     98     98     98     98

February 25, 2001 .........    97     97     97     97     97     97     97     97     97     97     97     97     97     97     97

February 25, 2002 .........    96     96     96     96     96     96     96     96     96     96     96     96     96     96     96

February 25, 2003 .........    95     95     95     95     95     95     95     95     95     95     95     95     95     95     95

February 25, 2004 .........    93     91     89     86     84     93     91     89     86     84     93     91     89     86     84

February 25, 2005 .........    92     87     82     76     72     92     87     82     76     72     92     87     82     76     72

February 25, 2006 .........    90     81     73     63     57     90     81     73     63     57     90     81     73     63     57

February 25, 2007 .........    88     75     63     50     42     88     75     63     50     42     88     75     63     50     42

February 25, 2008 .........    87     68     52     37     29     87     68     52     37     29     87     68     52     37     29

February 25, 2009 .........    85     61     43     28     20     85     61     43     28     20     85     61     43     28     20

February 25, 2010 .........    82     55     36     20     13     82     55     36     20     13     82     55     36     20     13

February 25, 2011 .........    80     50     30     15      9     80     50     30     15      9     80     50     30     15      9

February 25, 2012 .........    78     45     25     11      6     78     45     25     11      6     78     45     25     11      6

February 25, 2013 .........    75     40     20      8      4     75     40     20      8      4     75     40     20      8      4

February 25, 2014 .........    72     35     16      6      3     72     35     16      6      3     72     35     16      6      3

February 25, 2015 .........    69     31     13      4      2     69     31     13      4      2     69     31     13      4      2

February 25, 2016 .........    66     28     11      3      1     66     28     11      3      1     66     28     11      3      1

February 25, 2017 .........    62     24      9      2      1     62     24      9      2      1     62     24      9      2      1

February 25, 2018 .........    58     21      7      2      1     58     21      7      2      1     58     21      7      2      1

February 25, 2019 .........    54     18      5      1      *     54     18      5      1      *     54     18      5      1      *

February 25, 2020 .........    49     15      4      1      *     49     15      4      1      *     49     15      4      1      *

February 25, 2021 .........    45     13      3      1      *     45     13      3      1      *     45     13      3      1      *

February 25, 2022 .........    39     10      2      *      *     39     10      2      *      *     39     10      2      *      *

February 25, 2023 .........    34      8      2      *      *     34      8      2      *      *     34      8      2      *      *

February 25, 2024 .........    28      6      1      *      *     28      6      1      *      *     28      6      1      *      *

February 25, 2025 .........    21      4      1      *      *     21      4      1      *      *     21      4      1      *      *

February 25, 2026 .........    14      3      *      *      *     14      3      *      *      *     14      3      *      *      *

February 25, 2027 .........     6      1      *      *      *      6      1      *      *      *      6      1      *      *      *

February 25, 2028 .........     0      0      0      0      0      0      0      0      0      0      0      0      0      0      0

Weighted Average
 Life (Years) (1) .........   20.0   14.1   11.3   9.5    8.8    20.0   14.1   11.3   9.5    8.8    20.0   14.1   11.3   9.5    8.8
</TABLE>


- ----------
(1)  The   weighted   average   life  of  each  Class  or  Subclass  of  Offered
     CitiCertificates  is  determined  by (i)  multiplying  the  amount  of each
     distribution  in reduction of Stated Amount by the number of years from the
     date  of  issuance  of  the   Offered   CitiCertificates   to  the  related
     Distribution  Date,  (ii) adding the results and (iii)  dividing the sum by
     the  Initial  Stated  Amount  of the  Class  or  Subclass  of  the  Offered
     CitiCertificates.

*    Indicates an amount above zero and less than 0.5% of Initial  Stated Amount
     is outstanding.


                                      S-48
<PAGE>

PREPAYMENT AND YIELD CONSIDERATIONS

     The  yield  to  maturity  and  weighted   average   lives  of  the  Offered
CitiCertificates  will be sensitive in varying  degrees to, among other  things,
the rate of prepayment of the Mortgage Loans, the allocation of such prepayments
to the Class A, Unoffered Class A-IO, Class M and Class B  CitiCertificates  and
the timing and extent of losses,  if any,  allocable  to the Class A,  Unoffered
Class A-IO, Class M and Class B  CitiCertificates.  No representation is made as
to whether the Mortgage Loans will prepay at any particular rate.

     The yield to maturity on the Offered Class B CitiCertificates  will be more
sensitive  than the yield to maturity on the Class A,  Unoffered  Class A-IO and
Class M  CitiCertificates  to losses due to defaults on the Mortgage  Loans (and
the  timing  thereof),  to the  extent  not  covered  by the  Unoffered  Class B
CitiCertificates,  because the entire amount of such losses will be allocable to
the Offered Class B  CitiCertificates  in reverse  numerical  order prior to the
Class A and Class M CitiCertificates except as otherwise provided herein. To the
extent not covered by advances,  delinquencies on Mortgage Loans may also have a
relatively  greater  effect on the yield to  investors  in the  Offered  Class B
CitiCertificates.  Amounts  otherwise  distributable  to holders of the  Offered
Class B CitiCertificates  will be made available to protect holders of the Class
A, Unoffered Class A-IO and Class M  CitiCertificates  against  interruptions in
distributions due to certain mortgagor delinquencies. Such delinquencies, to the
extent  not  covered  by  the  Unoffered  Class  B  CitiCertificates,   even  if
subsequently  cured,  may affect the timing of the receipt of  distributions  by
holders of the Offered  Class B  CitiCertificates,  because the entire amount of
those  delinquencies would be borne by the Offered Class B Subclasses in reverse
numerical  order  prior  to the  Class  A,  Unoffered  Class  A-IO  and  Class M
CitiCertificates.

     If the purchaser of an Offered  CitiCertificate  offered at a discount from
its parity  price (as  described  below)  calculates  the  anticipated  yield to
maturity of such Offered  CitiCertificate based on an assumed rate of payment of
principal  that is faster than that  actually  received on the  Mortgage  Loans,
assuming all other relevant  circumstances  are  unchanged,  the actual yield to
maturity will be lower than that so  calculated.  If the purchaser of an Offered
CitiCertificate  which was instead  offered at a premium  over its parity  price
calculates the anticipated yield to maturity of such Offered  CitiCertificate on
an assumed  rate of  payment  of  principal  that is slower  than that  actually
received on the Mortgage Loans,  assuming all other relevant  circumstances  are
unchanged,  the actual yield to maturity will be lower than that so  calculated.
Parity  price is the price at which an  Offered  CitiCertificate  will yield its
coupon, after giving effect to any payment delay.

     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.  As a result,  the effect on an
investor's  yield 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  CitiCertificates  will not be offset by a
subsequent like reduction (or increase) in the rate of principal payments.

     The  Issuer  intends  to file  certain  additional  yield  tables and other
computational material with respect to one or more Class A Subclasses, the Class
M  CitiCertificates  and the Offered Class B Subclasses with the Commission in a
Report on Form 8-K.  See  "Incorporation  of  Certain  Documents  by  Reference"
herein.  Such  tables and  materials  were  prepared by the  Underwriter  at the
request of certain prospective investors,  based on assumptions provided by, and
satisfying  the  special  requirements  of,  such  investors.  Such  tables  and
assumptions  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 specifically requesting them.

     Because  the rate of  principal  payments  (including  prepayments)  on the
Mortgage  Loans may  significantly  affect the  weighted  average life and other
characteristics  on any Class A Subclass,  the Class M  CitiCertificates  or any
Offered  Class B  Subclass,  prospective  investors  are urged to consult  their
investment  advisors and to consider  their own estimates as to the  anticipated
rate of future  prepayments  on the Mortgage  Loans and the  suitability  of the
Class A  CitiCertificates,  the Class M  CitiCertificates  and  Offered  Class B
CitiCertificates to their investment objectives.


                                      S-49
<PAGE>

SENSITIVITY OF THE CLASS A-6 CITICERTIFICATES

     THE YIELD TO INVESTORS IN THE CLASS A-6 CITICERTIFICATES  WILL BE EXTREMELY
SENSITIVE TO THE RATE AND TIMING OF PRINCIPAL PAYMENTS  (INCLUDING  PREPAYMENTS)
ON THE DISCOUNT MORTGAGE LOANS, WHICH RATE MAY FLUCTUATE SIGNIFICANTLY FROM TIME
TO TIME.  BECAUSE  PAYMENTS  IN  REDUCTION  OF THE  STATED  AMOUNT  OF CLASS A-6
CITICERTIFICATES  WILL BE DIRECTLY RELATED TO THE RATE OF PRINCIPAL  PAYMENTS ON
THE  DISCOUNT   MORTGAGE   LOANS,   PAYMENTS  IN  REDUCTION  OF  THE  CLASS  A-6
CITICERTIFICATES WILL BE DIFFERENT AND MOST LIKELY SLOWER THAN THE POOL TAKEN AS
A WHOLE.

     The following table indicates sensitivity to various rates of prepayment on
the  Discount  Mortgage  Loans of the pre-tax  yields to maturity on a corporate
bond equivalent basis of the Class A-6  CitiCertificates.  Such calculations are
based on  distributions  made in  accordance  with  "Summary of  Prospectus  and
Prospectus  Supplement--Distributions  in  Reduction  of  Stated  Amount  of the
Offered  CitiCertificates"  herein,  on the  assumptions  which  pertain  to the
Discount  Mortgage  Loans  described  in clauses (i) through  (vii) of the sixth
paragraph     under    the     heading     "Description     of    the    Offered
CitiCertificates--Weighted Average Lives of the Offered CitiCertificates" and on
the further assumption that the Class A-6 CitiCertificates  will be purchased on
February 26, 1998 at an aggregate purchase price equal to approximately  50.000%
of the Initial Stated Amount thereof.

          SENSITIVITY OF THE CLASS A-6 CITICERTIFICATES TO PREPAYMENTS

                                      PERCENTAGE OF PREPAYMENT MODEL
                              --------------------------------------------------
                                 0%       125%      250%       400%       500%
                              -------   -------    -------    -------    -------
Pre-Tax Yield ...........      3.778%    8.432%    13.632%    19.412%    22.960%

     The pre-tax yields set forth in the preceding  table were calculated by (i)
determining the monthly discount rates which, when applied to the assumed stream
of cash  flows to be paid on the Class  A-6  CitiCertificates,  would  cause the
discounted  present  value  of such  assumed  stream  of cash  flows to equal an
assumed  purchase price for each Class A-6  CitiCertificate  equal to 50.000% of
the Initial  Stated  Amount  thereof and (ii)  converting  such monthly rates to
corporate bond equivalent rates. Such calculation does not take into account the
interest rates at which investors may be able to reinvest funds received by them
as distributions  on the Class A-6  CitiCertificates  and consequently  does not
purport to reflect the return on any  investment  in Class A-6  CitiCertificates
when such reinvestment rates are considered.

     Notwithstanding  the assumed  prepayment  rate  reflected in the  preceding
table, it is highly  unlikely that the Discount  Mortgage Loans will prepay at a
constant  rate until  maturity or that all of the Discount  Mortgage  Loans will
prepay at the same time. A lower than anticipated rate of principal  prepayments
on the  Discount  Mortgage  Loans  will have an  adverse  effect on the yield to
maturity of the Class A-6 CitiCertificates.  Because the Discount Mortgage Loans
have  NNRs that are  lower  than the NNRs of the  Premium  Mortgage  Loans,  the
Discount  Mortgage  Loans are  generally  likely to prepay at a lower rate under
most   circumstances.   There  are  likely  to  be  discrepancies   between  the
characteristics of the actual Discount Mortgage Loans and the characteristics of
the Discount Mortgage Loans assumed in preparing the table. As a result of these
factors,  the  pre-tax  yields on the Class A-6  CitiCertificates  are likely to
differ  from those  shown in such table,  even if all of the  Discount  Mortgage
Loans prepay at the indicated percentages of the Prepayment Model. Investors are
urged to make their  investment  decisions based on their  determinations  as to
anticipated rates of prepayment under a variety of scenarios.

YIELD CONSIDERATIONS WITH RESPECT TO THE OFFERED CLASS B CITICERTIFICATES

     If the Unoffered  Class B Stated Amount has been reduced to zero, the yield
to maturity  on the  Offered  Class B  CitiCertificates  will  become  extremely
sensitive to losses on the Mortgage  Loans and the timing  thereof,  because the
entire  amount of such losses (other than Excess Fraud  Losses,  Excess  Special
Hazard  Losses  and Excess  Bankruptcy  Losses,  as  described  herein)  will be
allocated  first to the  Class B-2  CitiCertificates  until  the  Stated  Amount
thereof has been reduced to zero, and then to the Class B-1 CitiCertificates.

     Defaults  on the  Mortgage  Loans  may be  measured  relative  to a default
standard or model. The model used in the following tables,  the standard default
assumption ("SDA"), represents an assumed rate of default each month relative to
the then  outstanding  principal  balance  of a pool of new  mortgage  loans.  A
default assumption of 100% SDA assumes constant default rates of 0.02% per annum
of the then  outstanding  principal  balance of such mortgage loans


                                      S-50
<PAGE>

in the first month of the life of the mortgage loans and an additional 0.02% per
annum in each month thereafter until the 30th month. Beginning in the 30th month
and in each month thereafter  through the 60th month of the life of the mortgage
loans,  100% SDA assumes a constant  default rate of 0.60% per annum each month.
Beginning in the 61st month and in each month thereafter through the 120th month
of the life of the mortgage  loans,  100% SDA assumes that the constant  default
rate  declines  each month by 0.0095% per annum,  and that the constant  default
rate remains at 0.03% per annum in each month after the 120th month.  As used in
the table below,  "50% SDA" assumes  default  rates equal to the product of 0.50
and the 100% SDA assumed default rate, "100% SDA" assumes default rates equal to
the product of 1.00 and the 100% SDA assumed  default  rate,  "150% SDA" assumes
default rates equal to the product of 1.50 and the 100% SDA assumed default rate
and so forth.  SDA does not purport to be a  historical  description  of default
experience  or a prediction  of the  anticipated  rate of default of any pool of
mortgage loans, including the Mortgage Loans.

     The  following  yield  tables  have been  prepared  using  the  Structuring
Assumptions,  except that, in lieu of clause (i) of the Structuring Assumptions,
it was  assumed  that (i)  scheduled  interest  and  principal  payments  on the
Mortgage Loans are received timely, other than with respect to Mortgage Loans on
which it is assumed the defaults occur monthly in accordance  with the indicated
percentages  of SDA. In addition,  it was assumed  that (i)  realized  losses on
liquidations of a specified  percentage of the outstanding  principal balance of
such  liquidated  Mortgage  Loans, as indicated in the table (referred to as the
"Loss Severity  Percentage"),  will occur at the time of liquidation which shall
be twelve  months  after the date of default;  (ii) there are no Excess  Special
Hazard Losses, Excess Fraud Losses or Excess Bankruptcy Losses; (iii) reductions
of the Class A Prepayment  Percentage are taken only when permitted as described
under "Description of the Offered  CitiCertificates--Distributions  in Reduction
of  Stated  Amount"  in  this  Prospectus  Supplement,  and  that  there  are no
delinquent   loans  other  than  Liquidated   Loans;   and  (iv)  there  are  no
Non-Supported Interest Shortfalls.

     The rate of  distributions  in  reduction  of Stated  Amount on the Offered
Class B  CitiCertificates  will be directly  related to the actual  amortization
schedule of the Mortgage  Loans;  accordingly,  the interest  distributions  and
distributions  in reduction  of Stated  Amount  received on the Offered  Class B
CitiCertificates  may result in pre-tax yields which differ from those reflected
below. The Mortgage Loans will not have the characteristics  assumed,  and it is
unlikely  that they  will  prepay at any of the  rates  specified.  The  assumed
percentages of  liquidations  and loss severities on the Mortgage Loans shown in
the table  below are for  illustrative  purposes  only and the  Issuer  makes no
representations  with respect to the  reasonableness of such assumptions or that
the actual  liquidation and loss severity  experience of the Mortgage Loans will
in any way correspond to any of the assumptions made herein. Consequently, there
can be no assurance that the pre-tax yield to an investor in the Offered Class B
CitiCertificates will correspond to any of the pre-tax yields shown below.

     The pre-tax  yields set forth in the  following  tables were  calculated by
determining  the  monthly  discount  rates  which,  when  applied to the assumed
streams of cash flows to be paid on the Offered Class B CitiCertificates,  would
cause the discounted  present value of such assumed  streams of cash flows as of
February 26, 1998 to equal the respective assumed purchase prices indicated plus
accrued  interest at the Stated Rate from (and  including)  the Cut-Off  Date to
(but  excluding)  February  26,  1998,  and  converting  such  monthly  rates to
corporate bond equivalent  rates.  Such  calculation  does 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  reductions  of the Stated Amount on the
Offered Class B  CitiCertificates  and consequently  does not purport to reflect
the return on any  investment  in  Offered  Class B  CitiCertificates  when such
reinvestment  rates are considered.  The assumed  purchase price is equal to the
percentage stated in each table.

          PRE-TAX YIELD TO MATURITY OF THE CLASS B-1 CITICERTIFICATES
                    (AT AN ASSUMED PURCHASE PRICE OF 98.75%
             OF THEIR INITIAL STATED AMOUNT PLUS ACCRUED INTEREST)

<TABLE>
<CAPTION>
                                          PREPAYMENT SPEED
                   ------------------------------------------------------------------
                       20% LOSS SEVERITY                     30% LOSS SEVERITY
                   ---------------------------          -----------------------------
SDA PERCENTAGE     125%        250%       400%          125%       250%          400%
- --------------     ----        ----       ----          ----       ----          ----
<S>               <C>         <C>        <C>           <C>        <C>           <C>
      50%         6.944%      6.957%     6.968%        6.945%     6.957%        6.968%
     100%         6.945%      6.957%     6.968%        6.947%     6.958%        6.968%
     150%         6.947%      6.958%     6.968%        6.933%     6.959%        6.969%
     200%         6.942%      6.958%     6.969%        4.378%     6.959%        6.969%
</TABLE>


                                      S-51
<PAGE>

          PRE-TAX YIELD TO MATURITY OF THE CLASS B-2 CITICERTIFICATES
                    (AT AN ASSUMED PURCHASE PRICE OF 97.25%
             OF THEIR INITIAL STATED AMOUNT PLUS ACCRUED INTEREST)

<TABLE>
<CAPTION>
                                          PREPAYMENT SPEED
                   ------------------------------------------------------------------
                        20% LOSS SEVERITY                   30% LOSS SEVERITY
                   ---------------------------          -----------------------------
SDA PERCENTAGE     125%        250%       400%          125%       250%          400%
- --------------     ----        ----       ----          ----       ----          ----
<S>               <C>         <C>        <C>           <C>        <C>           <C>
      50%         7.132%      7.169%     7.201%        7.134%     7.169%        7.202%
     100%         7.136%      7.170%     7.202%        6.790%     7.172%        7.202%
     150%         6.856%      7.173%     7.203%       (1.118)%    4.272%        7.205%
     200%         3.029%      6.239%     7.204%      (24.869)%   (6.828)%       2.854%
</TABLE>

                                                    
     The following  table sets forth the amount of Realized Losses that would be
incurred with respect to the CitiCertificates in the aggregate under each of the
scenarios in the  preceding  tables,  expressed  as a percentage  of the Initial
Mortgage Loan Balance:

                            AGGREGATE REALIZED LOSSES

<TABLE>
<CAPTION>
                                          PREPAYMENT SPEED
                   ------------------------------------------------------------------
                        20% LOSS SEVERITY                    30% LOSS SEVERITY
                   ---------------------------          -----------------------------
SDA PERCENTAGE     125%        250%       400%          125%       250%          400%
- --------------     ----        ----       ----          ----       ----          ----
<S>               <C>         <C>        <C>           <C>        <C>           <C>
      50%         0.294%      0.229%     0.175%        0.440%     0.343%        0.262%
     100%         0.583%      0.455%     0.348%        0.874%     0.682%        0.522%
     150%         0.867%      0.677%     0.519%        1.301%     1.016%        0.779%
     200%         1.147%      0.897%     0.688%        1.721%     1.346%        1.032%
</TABLE>

OPTIONAL TERMINATION

     Holders of all  outstanding  CitiCertificates  may  receive a  distribution
reducing the Stated Amount of such  CitiCertificates to zero upon the repurchase
by CMSI of the underlying  Mortgage  Loans and any property  acquired in respect
thereof in full, at CMSI's option,  at any time after the Pool Adjusted  Balance
is less than 5% of the Initial Mortgage Loan Balance, provided CMSI has received
an opinion of counsel or other  evidence  that such  repurchase  and the related
distribution  will  constitute a "qualified  liquidation"  within the meaning of
Code  Section  860F(a)(4)(A),  will not affect the REMIC status of the Trust and
will not otherwise subject the Trust to tax. CMSI reserves the right to transfer
its right to  repurchase  the  Mortgage  Loans as  described  above to any third
party.  See "The Pooling  Agreements--Termination;  Repurchase of Mortgage Loans
and Mortgage  Certificates"  in the Prospectus.  Any such final  distribution in
reduction of Stated Amount with respect to the CitiCertificates  will be paid to
Certificateholders in order of their priority of distribution as described under
"Summary of Prospectus and Prospectus  Supplement--Priority  of  Distributions."
The proceeds from such a  distribution  may not be sufficient to distribute  the
full amount to which each Class is entitled  if the  purchase  price is based in
part on the fair market value of the acquired property of the Trust.

TRUSTEE AND AGENTS

     The trustee for the  CitiCertificates  will be The Bank of New York,  which
will also act as Paying Agent,  Transfer Agent and Certificate Registrar for the
CitiCertificates.

SERVICING COMPENSATION

     CMSI will act as servicer of the Mortgage  Loans, as well as REMIC servicer
for the Pool  (together,  the  "Servicer").  CMSI will be entitled to  Servicing
Compensation equal to a monthly fee of 0.25% per annum of the aggregate Adjusted
Balance of the Mortgage  Loans (the  "Servicing  Fee"),  payable  from  interest
payments  received 


                                      S-52
<PAGE>

in respect of the Mortgage  Loans, as well as late payment  charges,  assumption
fees and  other  similar  amounts  set  forth  in the  Pooling  Agreement.  CMSI
currently intends to subcontract its duties as Servicer of the Mortgage Loans to
CMI.

     The Servicer  will pay the expenses of the Trust,  including  the Trustee's
fee,   accounting  fees  and  other  related   expenses.   See  "Description  of
Certificates--The Servicer" in the Prospectus.

BOOK-ENTRY REGISTRATION

     Each of the  Offered  Senior  CitiCertificates  (other  than the  Class A-6
CitiCertificates)  will  initially  be  issued  in  book-entry  form and will be
represented by a single physical certificate  registered in the name of Cede, as
nominee of DTC, which will be the "holder" or  "Certificateholder" of such Class
A  CitiCertificates  as such terms are used herein.  No Beneficial Owner will be
entitled to receive a certificate  representing  such  person's  interest in the
Book-Entry  CitiCertificates  or the  Trust,  except  as set forth  below  under
"--Definitive  Certificates."  Unless  and  until  Definitive  Certificates  (as
defined herein) are issued under the limited circumstances described herein, all
references  to actions  taken by  Certificateholders  or holders  shall refer to
actions taken by DTC upon instructions from its Participants (as defined below),
and all  references  herein  to  distributions  and  notices  of  redemption  to
Certificateholders  or  holders  shall  refer to  distributions  and  notices of
redemption  to  DTC  or  Cede,  as  the  registered  holder  of  the  Book-Entry
CitiCertificates  for  distribution  to  Participants  in  accordance  with  DTC
procedures.

     DTC is a limited  purpose  trust  company  organized  under the laws of the
State  of New  York,  a  member  of the  Federal  Reserve  System,  a  "clearing
corporation" within the meaning of the Uniform Commercial Code as adopted in the
State of New York and a "clearing agency" registered  pursuant to Section 17A of
the  Securities  Exchange  Act of 1934,  as  amended.  DTC was  created  to hold
securities  for  its  participating   organizations   ("Participants")   and  to
facilitate  the clearance and  settlement  of  securities  transactions  between
Participants through electronic  book-entries,  thereby eliminating the need for
physical movement of certificates.  Participants  include securities brokers and
dealers  (including  the  Underwriter),  banks,  trust  companies  and  clearing
corporations. Indirect access to the DTC system also is available to others such
as banks, brokers,  dealers and trust companies that clear through or maintain a
custodial  relationship  with  a  Participant,  either  directly  or  indirectly
("Indirect Participants").

     Under the rules,  regulations and procedures creating and affecting DTC and
its operations (the "Rules"),  DTC is required to make  book-entry  transfers of
Book-Entry  CitiCertificates  among  Participants  on whose  behalf it acts with
respect  to  the  Book-Entry   CitiCertificates  and  to  receive  and  transmit
distributions  of principal of and interest on the Book-Entry  CitiCertificates.
Participants  and  Indirect  Participants  with  which  Beneficial  Owners  have
accounts with respect to the Book-Entry  CitiCertificates similarly are required
to make book-entry transfers and receive and transmit such payments on behalf of
their respective Beneficial Owners.

     Beneficial  Owners that are not  Participants or Indirect  Participants but
desire to purchase,  sell or otherwise transfer ownership of, or other interests
in, Book-Entry CitiCertificates may do so only through Participants and Indirect
Participants.  In addition,  Beneficial Owners will receive all distributions of
principal  and  interest  from the  Trustee,  or a paying agent on behalf of the
Trustee,  through DTC Participants.  DTC will forward such  distributions to its
Participants,  which  thereafter  will forward them to Indirect  Participants or
Beneficial Owners.  Beneficial Owners will not be recognized by the Trustee, the
Servicer or any paying agent as Certificateholders,  as such term is used in the
Pooling  Agreement,  and  Beneficial  Owners will be  permitted  to exercise the
rights of Certificateholders only indirectly through DTC and its Participants.

     Because  DTC can only act on  behalf  of  Participants,  who in turn act on
behalf of Indirect  Participants  and certain banks, the ability of a Beneficial
Owner to pledge Book-Entry  CitiCertificates  to persons or entities that do not
participate  in the  DTC  system,  or to  otherwise  act  with  respect  to such
Book-Entry  CitiCertificates,  may be  limited  due to the  lack  of a  physical
certificate  for  such  Book-Entry   CitiCertificates.   In  addition,  under  a
book-entry  format,  Beneficial Owners may experience delays in receipt of their
payments, since distributions will be made by the Servicer, or a paying agent on
behalf of the Servicer, to Cede, as nominee for DTC.

     DTC has  advised the Issuer  that it will take any action  permitted  to be
taken by a  Certificateholder  under the Pooling Agreement only at the direction
of  one  or  more  Participants  to  whose  accounts  with  DTC  the  Book-Entry
CitiCertificates are credited.  Additionally, DTC has advised the Issuer that it
will take such  actions only at the  direction of and on behalf of  Participants
whose  holdings  of  Book-Entry   CitiCertificates  evidence  the  corresponding
percentage  of  ownership  interests.  DTC may take  conflicting  actions to the
extent that Participants whose holdings of Book-Entry  CitiCertificates evidence
such percentage of ownership interests authorize divergent action.


                                      S-53
<PAGE>

     Neither  the  Issuer,   the   Servicer   nor  the  Trustee  will  have  any
responsibility  for any aspect of the records  relating  to or payments  made on
account of beneficial ownership interests of Book-Entry CitiCertificates held by
Cede,  as nominee for DTC, or for  maintaining,  supervising  or  reviewing  any
records relating to such beneficial ownership interests.

DEFINITIVE CERTIFICATES

     The Class A-6 CitiCertificates, the Class M CitiCertificates, the Unoffered
Class A-IO CitiCertificates, the Offered Class B CitiCertificates, the Unoffered
Class B CitiCertificates  and the Residual  Certificates will be issued in fully
registered,   certificated  form  ("Definitive  Certificates").  The  Book-Entry
CitiCertificates will be issued as Definitive  Certificates to Beneficial Owners
or their nominees,  rather than to DTC or its nominee,  only if (i) the Servicer
advises  the  Trustee  in  writing  that  DTC is no  longer  willing  or able to
discharge  properly  its  responsibilities  as  depository  with  respect to the
Book-Entry  CitiCertificates  and the  Servicer  is unable to locate a qualified
successor,  (ii) the Servicer, at its option, elects to terminate the book-entry
system  through DTC or (iii) after the  occurrence of a dismissal or resignation
of the Servicer under the Pooling Agreement,  Beneficial Owners representing not
less  than  51% of the  ownership  interests  of each  outstanding  Subclass  of
Book-Entry  CitiCertificates  advise the Trustee through DTC in writing that the
continuation of a book-entry  system through DTC (or a successor  thereto) is no
longer in the Beneficial Owners' best interest.

     Upon the occurrence of any event described in the preceding paragraph,  the
Trustee will be required to notify all Beneficial Owners through Participants of
the availability of Definitive Certificates.

     Upon surrender by DTC of the definitive  CitiCertificates  representing the
Book-Entry CitiCertificates and receipt of instructions for re-registration, the
Trustee will reissue the Book-Entry  CitiCertificates as Definitive Certificates
to  Beneficial  Owners.  Distributions  of  principal  of, and  interest on, the
Book-Entry  CitiCertificates will thereafter be made by the Trustee, or a paying
agent on behalf of the Trustee,  directly to holders of Definitive  Certificates
in accordance with the procedures set forth in the Pooling Agreement.

     Definitive  Certificates  will  be  transferable  and  exchangeable  at the
offices of the Trustee.  No service charge will be imposed for any  registration
of transfer or exchange, but the Trustee may require payment of a sum sufficient
to cover any tax or other governmental charge imposed in connection therewith.

REPORTS TO CERTIFICATEHOLDERS

     Unless  and until  Definitive  Certificates  are  issued in  respect of the
Book-Entry  CitiCertificates,  monthly and annual reports containing information
concerning  the Trust and  prepared  by the  Servicer  pursuant  to the  Pooling
Agreement  will be sent to Cede as nominee of DTC and  registered  holder of the
Book-Entry   CitiCertificates,   as  well  as  to  holders  of  the   Definitive
Certificates.  The  Pooling  Agreement  does  not  require  the  sending  of any
financial reports to the Beneficial Owners.  Beneficial Owners may obtain copies
of any Distribution Date statement free of charge upon request from the Servicer
at (314) 256-6406.

VOTING RIGHTS

     At all times,  98% of the voting rights of holders of the  CitiCertificates
under   the   Pooling   Agreement   will  be   allocated   among   the  Class  A
CitiCertificates,  the Class M CitiCertificates and the Class B CitiCertificates
based upon such  Class's  pro rata  interest  in the Trust.  The  holders of the
Unoffered  Class  A-IO  CitiCertificates  will be  allocated  2% of such  voting
rights.  Voting rights will be allocated  among the Subclasses of the same Class
in proportion to their  percentage  interest in such Class based on their Stated
Amounts.

                              ERISA CONSIDERATIONS

     The  Department  of Labor has  granted  to the  Underwriter  an  individual
exemption,  Prohibited  Transaction Exemption PTE 89-89 (the "Exemption"),  from
certain of the prohibited  transaction  rules of ERISA and certain of the excise
taxes imposed by Section 4975 of the Code with respect to the initial  purchase,
the  holding,  and the  subsequent  resale  by ERISA  Plans of  certificates  in
pass-through  trusts that meet the conditions and requirements of the Exemption.
The  Exemption  should  apply to the  acquisition,  holding,  and  resale of the
Offered  Senior  CitiCertificates  by an ERISA  Plan,  provided  that  specified
conditions (certain of which are described below) are met.

                                      S-54
<PAGE>

     Among the conditions  which must be satisfied for the Exemption to apply to
the acquisition by an ERISA Plan of the Offered Senior  CitiCertificates are the
following:  (1) the  acquisition  of the Offered Senior  CitiCertificates  by an
ERISA Plan is on terms (including the price for such  CitiCertificates) that are
at least as  favorable  to the ERISA  Plan as they  would be in an  arm's-length
transaction with an unrelated  party; (2) the rights and interests  evidenced by
the  Offered  Senior  CitiCertificates  acquired  by  the  ERISA  Plan  are  not
subordinated to the rights and interests  evidenced by other certificates of the
Trust; (3) the Offered Senior  CitiCertificates  acquired by the ERISA Plan have
received  a rating at the time of such  acquisition  that is in one of the three
highest generic rating  categories from any of S&P, Fitch,  Duff & Phelps Credit
Rating Co. or Moody's Investors Service,  Inc.; (4) the sum of all payments made
to the  Underwriter in connection  with the  distribution  of the Offered Senior
CitiCertificates   represents  not  more  than   reasonable   compensation   for
underwriting such CitiCertificates;  and (5) the sum of all payments made to and
retained by the Servicer  represents not more than reasonable  compensation  for
the Servicer's  services under the Pooling  Agreement and  reimbursement  of the
Servicer's reasonable expenses in connection therewith.

     In addition, it is a condition that the ERISA Plan investing in the Offered
Senior CitiCertificates be an "accredited investor" as defined in Rule 501(a)(1)
of Regulation D of the  Commission  under the Securities Act of 1933, as amended
(the "Securities Act").

     The  Exemption  does not apply to the  acquisition  and  holding of Offered
Senior CitiCertificates by ERISA Plans sponsored by the Issuer, the Underwriter,
the Trustee,  the  Servicer,  or any affiliate of such  parties.  Moreover,  the
Exemption  provides  relief  from  certain   self-dealing/conflict  of  interest
prohibited  transactions,  only if, among other requirements (i) an ERISA Plan's
investment  in each Class A Subclass  of the Class A  CitiCertificates  does not
exceed 25% of that Class A Subclass  outstanding at the time of the  acquisition
and (ii) immediately after the acquisition, no more than 25% of the assets of an
ERISA Plan with respect to which the person who has  discretionary  authority or
renders advice are invested in certificates  representing an interest in a trust
containing assets sold or serviced by the same person.

     A governmental  plan as defined in Section 3(32) of ERISA is not subject to
ERISA or Code Section 4975. However,  such a governmental plan may be subject to
a federal,  state, or local law, which is, to a material extent,  similar to the
provisions or ERISA or Section 4975 of the Code ("Similar  Law"). A fiduciary of
a  governmental  plan should make its own  determination  as to the need for the
availability of any exemptive relief under Similar Law.

     Neither the Exemption nor PTE 83-1 (discussed under "ERISA  Considerations"
in the  Prospectus)  applies  to the  acquisition  or  holding  of the  Class  M
CitiCertificates   or  the  Offered  Class  B   CitiCertificates   because  such
CitiCertificates  are  subordinated  to the  Class A and  Unoffered  Class  A-IO
CitiCertificates. Accordingly, no transfer of an Offered Class B CitiCertificate
or Class M  CitiCertificate  to a Plan will be registered  unless the transferee
(i) executes a representation  letter in form and substance  satisfactory to the
Trustee  stating  that (a) it is not,  and is not  acting on behalf of a Plan or
using the  assets of any such Plan to effect  such  purchase  or (b) if it is an
insurance   company,   the  source  of  funds  used  to  purchase  the  Class  M
CitiCertificates  or Offered Class B  CitiCertificates  is an "insurance company
general  account"  (as  such  term is  defined  in  Section  V(e) of  Prohibited
Transaction  Class Exemption  95-60 ("PTE 95-60"),  60 Fed. Reg. 35925 (July 12,
1995)) and there is no Plan with  respect  to which the  amount of such  general
account's  reserves and liabilities for the contract(s)  held by or on behalf of
such Plan and all other Plans  maintained  by the same  employer  (or  affiliate
thereof  as defined  in  Section  V(a)(1) of PTE 95-60) or by the same  employee
organization,  exceed 10% of the total of all reserves and  liabilities  of such
general account (as such amounts are determined under Section I(a) of PTE 95-60)
at the date of  acquisition  or (ii)  delivers (A) an opinion of counsel in form
and  substance  satisfactory  to the Trustee and the Issuer that the purchase or
holding of the Class M or Offered  Class B  CitiCertificates  by or on behalf of
such Plan will not  result in the assets of the Trust  being  deemed to be "plan
assets" and subject to the  prohibited  transaction  provisions of ERISA and the
Code or Similar Law and will not subject the  Servicer  (or its  designee),  the
Issuer or the Trustee to any  obligation in addition to those  undertaken in the
Pooling Agreement and (B) such other opinions of counsel, officers' certificates
and agreements as the Trustee and the Issuer may require in connection with such
transfer.

     Fiduciaries  that are  investing  or that  could be deemed to be  investing
assets of Plans should consult their legal advisors, and refer to the discussion
under "ERISA Considerations" in the Prospectus.


                                      S-55
<PAGE>

                                LEGAL INVESTMENT

     The Class A and Class M CitiCertificates  will constitute "mortgage related
securities"  for purposes of SMMEA,  so long as they are rated in one of the two
highest  rating  categories by at least one  nationally  recognized  statistical
rating  organization.  As "mortgage related  securities," such  CitiCertificates
will constitute legal investments for certain entities to the extent provided in
SMMEA. However, there are regulatory requirements and considerations  applicable
to regulated  financial  institutions  and  restrictions  on the ability of such
institutions to invest in certain types of mortgage related securities.

     THE OFFERED CLASS B CITICERTIFICATES  WILL NOT CONSTITUTE "MORTGAGE RELATED
SECURITIES" FOR PURPOSES OF SMMEA.

     Prospective purchasers of the Offered CitiCertificates should consult their
own legal,  tax and accounting  advisors in determining  the  suitability of and
consequences  to them of the purchase,  ownership and disposition of the Offered
CitiCertificates. See "Legal Investment" in the Prospectus.

                              PLAN OF DISTRIBUTION

     Subject to the terms and  conditions of the  Underwriting  Agreement  among
Citicorp,  the Issuer and the Underwriter (the  "Underwriting  Agreement"),  the
Offered  CitiCertificates are being purchased from the Issuer by the Underwriter
upon  issuance.  The  Underwriter  is  committed  to purchase all of the Offered
CitiCertificates  if any  CitiCertificates  are purchased.  Distribution of such
Offered  CitiCertificates  is being made by the Underwriter from time to time in
negotiated  transactions  or otherwise at varying prices to be determined at the
time of sale.  Proceeds to the Issuer  will be  approximately  98.97101%  of the
aggregate Initial Stated Amount of the Class A  CitiCertificates,  approximately
99.32918% of the aggregate Initial Stated Amount of the Class M CitiCertificates
and  approximately  97.96623%  of the  aggregate  Initial  Stated  Amount of the
Offered  Class B  CitiCertificates,  plus  accrued  interest as set forth on the
front cover hereof and before deducting expenses payable by the Issuer, provided
that if the aggregate Initial Stated Amount of the Class A  CitiCertificates  is
less than  $197,805,926,  the  aggregate  proceeds  to the  Issuer  (stated as a
percentage   of  the   aggregate   Initial   Stated   Amount   of  the  Class  A
CitiCertificates)  will be  adjusted  upwards  by not more than .002% and if the
aggregate Initial Stated Amount of the Class A CitiCertificates  is greater than
$197,805,926,  the aggregate  proceeds to the Issuer  (stated as a percentage of
the aggregate  Initial  Stated Amount of the Class A  CitiCertificates)  will be
adjusted  downwards by not more than .002%.  In connection with the purchase and
sale of the  Offered  CitiCertificates,  the  Underwriter  may be deemed to have
received compensation from the Issuer in the form of underwriting discounts.

     Subject  to the  terms  and  conditions  of the  purchase  agreement  among
Citicorp,  the Issuer and Salomon Brothers Inc (the "Purchase  Agreement"),  the
Unoffered Class B  CitiCertificates  (not offered hereby) are being purchased by
Salomon  Brothers  Inc upon  issuance.  Salomon  Brothers  Inc is  committed  to
purchase  all  of  the  Unoffered  Class  B  CitiCertificates   if  any  Offered
CitiCertificates are purchased.  The Unoffered Class B CitiCertificates  will be
offered through Salomon Brothers Inc in one or more negotiated transactions,  as
a private placement to a limited number of institutional  investors. The closing
of the  sale  of the  Unoffered  Class B  CitiCertificates  under  the  Purchase
Agreement   is  a  condition   to  the  closing  of  the  sale  of  the  Offered
CitiCertificates to the Underwriter.

     The  Underwriting  Agreement  provides  that the Issuer and  Citicorp  will
indemnify the Underwriter against certain civil liabilities under the Securities
Act or contribute to payments the Underwriter may be required to make in respect
thereof.


                                      S-56
<PAGE>

                                 LEGAL MATTERS

     Certain  legal  matters  will be passed upon for the Issuer and Citicorp by
Stephen E. Dietz, as an Associate General Counsel of Citibank, N.A., and for the
Underwriter  by  Cadwalader,  Wickersham  & Taft,  New York,  New York.  Certain
federal  income tax matters will be passed upon for the Issuer by Rona  Daniels,
Vice President and Tax Counsel for Asset  Securitization of Citibank,  N.A. Each
of Mr. Dietz and Ms. Daniels owns or has the right to acquire a number of shares
of common stock of Citicorp  equal to less than .01% of the  outstanding  common
stock of Citicorp.  Certain  ERISA matters will be passed upon for the Issuer by
Cadwalader, Wickersham & Taft, New York, New York.

                INCORPORATION OF CERTAIN DOCUMENTS BY REFERENCE

     The  following  document  filed  with  the  Commission  by  the  Issuer  is
incorporated as of its filing date in this Prospectus  Supplement and Prospectus
by reference:

     Current  Report on Form 8-K dated  February  23,  1998,  filed  pursuant to
Section 13 of the Exchange Act.

     All reports subsequently filed by the Issuer pursuant to Sections 13(a) and
(c) of the Exchange Act, any definitive  proxy or information  statements  filed
pursuant to Section 14 of the Exchange Act in connection with any  stockholders'
meeting and any reports  filed  pursuant to Section  15(d) of the  Exchange  Act
prior to the termination of the offering of the CitiCertificates  offered hereby
shall be deemed to be incorporated by reference into this Prospectus  Supplement
and Prospectus and to be a part hereof.


                                      S-57
<PAGE>

            INDEX OF PRINCIPAL DEFINITIONS IN PROSPECTUS SUPPLEMENT

                                                                            PAGE
                                                                            ----
Adjusted Balance ..................................................         S-24
Adjustment Amount .................................................         S-43
Available PO Loss Funds ...........................................         S-14
Bankruptcy Coverage Termination Date ..............................         S-43
Bankruptcy Loss ...................................................         S-36
Bankruptcy Loss Amount ............................................         S-43
Beneficial Owner ..................................................          S-7
Book-Entry CitiCertificates .......................................          S-4
Cede ..............................................................          S-4
Certificate Account ...............................................         S-19
Certificateholder .................................................          S-4
CFSB ..............................................................          S-2
Citibank ..........................................................          S-2
CitiCertificates ..................................................          S-2
Class A CitiCertificates ..........................................          S-1
Class A Interest Amount ...........................................         S-11
Class A Optimal Principal Amount ..................................         S-34
Class A Percentage ................................................         S-36
Class A PO Principal Amount .......................................         S-33
Class A Prepayment Percentage .....................................         S-36
Class A Principal Distribution Amount .............................         S-32
Class A Stated Amount .............................................          S-6
Class A Subclass ..................................................          S-2
Class A Subclass Interest Amount ..................................         S-29
Class A Subclass Interest Shortfall Amount ........................         S-12
Class A Subclass Stated Amount ....................................          S-6
Class A Unpaid Interest Shortfall .................................         S-12
Class B CitiCertificates ..........................................          S-2
Class B Interest Amount ...........................................         S-29
Class B Percentage ................................................         S-39
Class B Prepayment Percentage .....................................         S-39
Class B Stated Amount .............................................          S-7
Class B Subclass ..................................................          S-2
Class B Subclass Principal Distribution Amount ....................         S-15
Class B Subclass Stated Amount ....................................          S-7
Class B-1 Interest Amount .........................................         S-11
Class B-2 Interest Amount .........................................         S-11
Class B-1 Principal Distribution Amount ...........................         S-15
Class B-2 Principal Distribution Amount ...........................         S-15
Class B-1 Stated Amount ...........................................          S-7
Class B-2 Stated Amount ...........................................          S-7
Class B-1 Unpaid Interest Shortfall ...............................         S-13
Class B-2 Unpaid Interest Shortfall ...............................         S-13
Class M CitiCertificates ..........................................          S-1
Class M Interest Amount ...........................................         S-11
Class M Optimal Distribution Amount ...............................         S-32
Class M Optimal Principal Amount ..................................         S-35
Class M Percentage ................................................         S-39
Class M Prepayment Percentage .....................................         S-39
Class M Principal Distribution Amount .............................         S-15
Class M Stated Amount .............................................          S-7
Class M Unpaid Interest Shortfall .................................         S-13

                                      S-58
<PAGE>

                                                                            PAGE
                                                                            ----
Closing Date .......................................................         S-8
CMI ................................................................         S-2
CMSI ...............................................................         S-2
Code ...............................................................        S-21
Commission .........................................................        S-22
Compensating Cap ...................................................        S-12
Current Class B-1 Subordination Level ..............................        S-16
Current Class B-2 Subordination Level ..............................        S-17
Current Class M Subordination Level ................................        S-16
Cut-Off Date .......................................................         S-1
Debt Service Reduction .............................................        S-36
Deficient Valuation ................................................        S-36
Definitive Certificates ............................................        S-54
Detailed Description ...............................................        S-24
Discount Mortgage Loans ............................................        S-32
Distributable Unoffered Class A-IO Interest Amount .................        S-11
Distribution Date ..................................................         S-2
DTC ................................................................         S-1
ERISA ..............................................................        S-21
ERISA Plan .........................................................        S-21
Excess Bankruptcy Losses ...........................................        S-43
Excess Fraud Losses ................................................        S-43
Excess Special Hazard Losses .......................................        S-43
Exemption ..........................................................        S-22
Fitch ..............................................................        S-22
Fraud Coverage Termination Date ....................................        S-43
Fraud Loss .........................................................        S-36
Fraud Loss Amount ..................................................        S-43
Group I Class A CitiCertificates ...................................        S-33
Group I Final Distribution Date ....................................        S-37
Group I Fraction ...................................................        S-38
Group I Non-PO Principal Amount ....................................        S-33
Group I Percentage .................................................        S-37
Group I Prepayment Percentage ......................................        S-38
Group I Stated Amounts .............................................        S-37
Group II Fraction ..................................................        S-38
Group II Non-PO Principal Amount ...................................        S-34
Group II Percentage ................................................        S-37
Group II Prepayment Percentage .....................................        S-38
Indirect Participants ..............................................        S-53
Initial Mortgage Loan Balance ......................................         S-2
Initial Stated Amount ..............................................         S-1
Interest Accrual Period ............................................        S-11
Issuer .............................................................         S-2
Last Scheduled Distribution Date ...................................        S-17
Liquidated Loan ....................................................        S-35
Liquidated Loan Loss ...............................................        S-35
Liquidation Proceeds ...............................................        S-36
Loss Severity Percentage ...........................................        S-51
Mortgage Loans .....................................................         S-2
NNR ................................................................        S-32
Non-PO Class A Amount ..............................................        S-36
Non-PO Loss Amount .................................................        S-41


                                      S-59
<PAGE>

                                                                            PAGE
                                                                            ----
Non-PO Percentage ..................................................        S-34
Non-PO Pool Adjusted Balance .......................................        S-30
Non-Supported Interest Shortfall ...................................        S-12
Offered CitiCertificates ...........................................         S-2
Offered Class B CitiCertificates ...................................         S-2
Offered Class B Interest Amount ....................................        S-11
Offered Class B Optimal Distribution Amount ........................        S-33
Offered Class B Stated Amount ......................................         S-7
Offered Class B Subclass ...........................................         S-2
Offered Class B Subclass Interest Amount ...........................        S-29
Offered Class B Subclass Optimal Distribution Amount ...............        S-33
Offered Class B Subclass Optimal Principal Amount ..................        S-35
Offered Class B Subclass Percentage ................................        S-39
Offered Class B Subclass Prepayment Percentage .....................        S-39
Offered Class B Subclass Stated Amount .............................        S-30
Offered Class B Subclass Unpaid Interest Shortfall .................        S-13
Offered Senior CitiCertificates ....................................         S-2
Offered Subordinated CitiCertificates ..............................         S-2
Original Subordinated Stated Amount ................................        S-37
Participants .......................................................        S-53
Plan ...............................................................        S-22
Pool ...............................................................         S-2
Pool Adjusted Balance ..............................................        S-31
Pool Distribution Amount ...........................................        S-15
Pooling Agreement ..................................................         S-6
PO Loss Amount .....................................................        S-30
PO Percentage ......................................................        S-34
Premium Mortgage Loans .............................................        S-32
Prepayment Interest Shortfalls .....................................        S-12
Prepayment Model ...................................................        S-44
PTE 95-60 ..........................................................        S-55
Purchase Agreement .................................................        S-56
Realized Losses ....................................................        S-36
Record Date ........................................................        S-21
Reduction Tests ....................................................        S-37
REMIC ..............................................................         S-2
Residual Certificates ..............................................         S-2
Rules ..............................................................        S-53
SDA ................................................................        S-50
Securities Act .....................................................        S-55
Servicer ...........................................................        S-52
Servicing Fee ......................................................        S-52
Shift Percentage ...................................................        S-37
Similar Law ........................................................        S-21
SMMEA ..............................................................         S-5
Special Hazard Loss ................................................        S-36
Special Hazard Loss Amount .........................................        S-43
Special Hazard Termination Date ....................................        S-43
Special Hazards ....................................................        S-36
S&P ................................................................        S-22
Structuring Assumptions ............................................        S-45
Subordinated CitiCertificates ......................................         S-8
Subordinated CitiCertificate Percentage ............................        S-39


                                      S-60
<PAGE>

                                                                            PAGE
                                                                            ----
Subordinated Prepayment Percentage ................................         S-39
Subordination Depletion Date ......................................          S-9
Trust .............................................................          S-2
Trustee ...........................................................          S-6
Underwriter .......................................................          S-1
Underwriting Agreement ............................................         S-56
Unoffered Class A-IO CitiCertificates .............................          S-2
Unoffered Class A-IO Interest Amount ..............................         S-11
Unoffered Class A-IO Notional Amount ..............................          S-6
Unoffered Class A-IO Unpaid Interest Shortfall ....................         S-12
Unoffered Class B CitiCertificates ................................          S-2
Unoffered Class B Interest Amount .................................         S-29
Unoffered Class B Stated Amount ...................................         S-31
Unoffered Class B Subclass Interest Amount ........................         S-29
Unoffered Class B Subclass Stated Amount ..........................         S-30
Unpaid PO Loss Amount .............................................         S-33


                                      S-61
<PAGE>

PROSPECTUS
- ----------

                       CITICORP MORTGAGE SECURITIES, INC.
                        REMIC PASS-THROUGH CERTIFICATES

     Citicorp  Mortgage  Securities,  Inc. (the  "Issuer") may sell from time to
time, on terms to be determined at the time of sale, one or more series (each, a
"Series") of certificates (the "Certificates") consisting of one or more classes
(each, a "Class") evidencing ownership interests in a trust (the "Trust"), to be
created by the Issuer,  with respect to which one or more elections will be made
to treat such  Trust,  or one or more  segregated  pools of assets  within  such
Trust, as one or more real estate mortgage investment conduits (each, a "REMIC")
under the Internal  Revenue Code of 1986, as it may be amended from time to time
(the  "Code").  The property of each such REMIC will consist of a pool of assets
(for each Series, a "Pool"), or interests in another REMIC consisting of a Pool,
comprised primarily of mortgage loans or mortgage-backed  certificates  conveyed
to such Trust by the Issuer.  Any Class of Certificates  may be divided into two
or more subclasses (each, a "Subclass"). The Certificates will consist of one or
more   Classes  or   Subclasses   of  regular   interests   (collectively,   the
"CitiCertificates"), and of one Class or one Subclass of residual interests with
respect to each Pool (the  "Residual  Certificates").  Each Class or Subclass of
Certificates 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 Loans
or Mortgage  Certificates in the related Pool. One or more Classes or Subclasses
of  CitiCertificates  may  be  subject  to  deferred  distribution  of  interest
("Accrual  CitiCertificates").  If so  specified  in the  applicable  Prospectus
Supplement, a Series (a "Senior/Subordinated Series") may consist of one or more
Classes or Subclasses of Certificates subordinate in right of distributions (the
"Subordinated  Certificates")  to one or more other Classes or  Subclasses  (the
"Senior Certificates"). If so specified in the applicable Prospectus Supplement,
in addition to or in lieu of  subordination,  credit support may be provided for
any  Class of  Certificates  in the form of a  guaranty  issued by  Citicorp  or
another  guarantor (a  "Guaranty"),  letter of credit,  mortgage pool  insurance
policy  or  another  form of  credit  support  as  described  herein  and in the
applicable Prospectus Supplement.

     The applicable  Prospectus  Supplement will set forth the specific terms of
each Class  and/or  Subclass of  Certificates  offered  thereby,  including  (if
applicable)  the aggregate  initial Stated Amount,  the Stated Rate and the Last
Scheduled  Distribution  Date for each  such  Class or  Subclass;  the  terms of
distribution   of  accrued   interest  on  any  Class  or  Subclass  of  Accrual
CitiCertificates;   the  method  used  to  calculate  the  aggregate  amount  of
distributions  in  reduction  of  Stated  Amount  of any  Class or  Subclass  of
Certificates  required  to be made on each  Distribution  Date and the method of
allocation thereof;  the Distribution Dates; the characteristics of the Mortgage
Loans or Mortgage Certificates  comprising the Pool; whether more than one REMIC
election  will  be  made;  the  terms  of any  special  distributions  or  early
termination applicable to the Class or Subclass; the terms of any credit support
provided for a Class or Subclass;  the terms of any subordination  provided in a
Senior/Subordinated Series; the method of distribution of the Certificates;  the
terms of any distributions on Residual Certificates; and other specific terms of
a Class or Subclass.

     Each Pool will consist of (i) fixed or  adjustable  interest  rate mortgage
loans  ("Mortgage  Loans") (a portion of the interest on each such Mortgage Loan
may be retained  by the Issuer or an  affiliate  of the Issuer)  acquired by the
Issuer (a) from Citicorp Mortgage, Inc. ("CMI"),  Citibank, N.A. ("Citibank") or
Citibank, Federal Savings Bank ("CFSB") or (b) from CitiMae, Inc. ("CitiMae") or
one of its  affiliates  or a  seller-servicer  approved by CitiMae or one of its
affiliates  (collectively,  the  "CitiMae  Originators")  or  (c)  from  another
affiliate  of the  Issuer  specified  in the  applicable  Prospectus  Supplement
(collectively with CMI, Citibank and CFSB, the "Affiliated  Originators") or (d)
from   unaffiliated   seller-servicers   (the  "Third  Party   Originators"  and
collectively with the Affiliated  Originators and the CitiMae  Originators,  the
"Originators"),  (which  Mortgage Loans may be acquired by CMI and then acquired
from CMI by the Issuer), (ii) mortgage-backed  certificates previously issued by
the  Issuer or an  affiliate  of the  Issuer  and  described  in the  applicable
Prospectus  Supplement  ("Issuer  Certificates"),  (iii) certificates  backed by
Mortgage Loans (together with Issuer Certificates,  "CitiMortgageCertificates"),
and/or (iv) GNMA Certificates, FNMA Certificates and/or FHLMC Certificates (each
as defined herein, and collectively, together with CitiMortgageCertificates, the
"Mortgage Certificates"), together with certain other assets described herein or
as otherwise described in the Prospectus  Supplement.  The Mortgage Certificates
may be  guaranteed  as to  payment  of  principal  and  interest  to the  extent
indicated   herein   and   in   the   related   Prospectus    Supplement.    The
CitiMortgageCertificates  may have the  benefit of credit  support to the extent
provided herein and in the related Prospectus Supplement.

     THESE  CERTIFICATES  DO NOT  REPRESENT AN  OBLIGATION OF OR INTEREST IN THE
ISSUER  OR  ANY  OF ITS  AFFILIATES  EXCEPT  AS SET  FORTH  BELOW.  NEITHER  THE
CERTIFICATES,  THE CITIMORTGAGE  CERTIFICATES NOR THE UNDERLYING  MORTGAGE LOANS
ARE INSURED OR GUARANTEED BY ANY AGENCY OR INSTRUMENTALITY OF THE UNITED STATES.

                                   ----------

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  PROSPECTUS  SUPPLEMENT.  ANY
REPRESENTATION TO THE CONTRARY IS A CRIMINAL OFFENSE.

                                   ----------

     The  Certificates  may be sold by the  Issuer  through  dealers  or  agents
designated from time to time, through underwriting syndicates led by one or more
managing  underwriters  or through one or more  underwriters  acting alone.  See
"Plans of  Distribution."  Affiliates of the Issuer may from time to time act as
agents or underwriters in connection with the sale of the Certificates. Specific
information  with respect to the terms of offering of the  Certificates  offered
thereby is set forth in the Prospectus Supplement.

     THIS PROSPECTUS MAY NOT BE USED TO CONSUMMATE SALES OF CERTIFICATES  UNLESS
ACCOMPANIED BY A PROSPECTUS SUPPLEMENT.

                THE DATE OF THIS PROSPECTUS IS FEBRUARY 24, 1998.

<PAGE>

                         REPORTS TO CERTIFICATEHOLDERS

     The  Issuer  will  provide  or  cause  to be  provided  to  holders  of the
Certificates  (the   "Certificateholders")   of  each  Series  periodic  reports
concerning the Pool underlying their respective  Certificates.  See "The Pooling
Agreements--Reports to Certificateholders."

                             ADDITIONAL INFORMATION

     Copies of FHLMC's most recent  Offering  Circular  for FHLMC  Certificates,
FHLMC's  Information  Statement and most recent  Supplement to such  Information
Statement  and any quarterly  report made  available by FHLMC can be obtained by
writing or calling the Investor  Inquiry  Department at 8200 Jones Branch Drive,
McLean,  Virginia  22102,  telephone  number (703)  450-3777 or (800)  336-FMPC.
Copies of FNMA's most recent  Prospectus for FNMA Certificates and FNMA's annual
and quarterly reports as well as other financial  information are available from
the Vice President for Investor Relations of FNMA, 3900 Wisconsin Avenue,  N.W.,
Washington, D.C. 20016, telephone number (202) 752-7115. The Issuer does not and
will  not  participate  in  the  preparation  of  FHLMC's  Offering   Circulars,
Information  Statements  or any  Supplements  thereto  or  any of its  quarterly
reports,  FNMA's  Prospectuses  or any of its reports,  financial  statements or
other information or GNMA's annual report.

                              AVAILABLE INFORMATION

     The following  information  is provided if a Guaranty is issued by Citicorp
and is part of a Pool. Citicorp is subject to the informational  requirements of
the  Securities  Exchange Act of 1934, as amended (the "Exchange  Act"),  and in
accordance therewith Citicorp currently files reports and other information with
the Securities and Exchange  Commission  (the  "Commission").  Information as of
particular dates, concerning directors and officers, their remuneration, options
granted  to them,  the  principal  holders of  securities  of  Citicorp  and any
material interest of such persons in transactions with Citicorp, is disclosed in
proxy  statements  distributed  to  stockholders  of Citicorp and filed with the
Commission.  Such  reports,  proxy  statements  and  other  information  can  be
inspected and copied at the public reference facilities of the Commission at 450
Fifth Street, N.W.,  Washington,  D.C. 20549;  Citicorp Center, 500 West Madison
Street, Suite 1400, Chicago,  Illinois 60661; and Seven World Trade Center, 13th
Floor,  New York,  New York 10048.  Copies of such material can be obtained from
the  Public  Reference  Section of the  Commission  at 450 Fifth  Street,  N.W.,
Washington, D.C. 20549 at prescribed rates. The Commission also maintains a site
on the  World  Wide  Web at  "http://www.sec.gov"  at which  users  can view and
download  copies  of  reports,  proxy  statements  and other  information  filed
electronically  through the Electronic  Data  Gathering,  Analysis and Retrieval
("EDGAR")  system.  Citicorp  files such  reports,  proxy  statements  and other
information  through the EDGAR system and  therefore  such  materials  should be
available by logging onto the  Commission's  Web site. The Commission  maintains
computer  terminals  providing access to the EDGAR system at each of the offices
referred to above Citicorp stock is listed on, and copies of such reports, proxy
statements and other  information  concerning  Citicorp also may be inspected at
the offices of, the New York Stock Exchange,  the American Stock  Exchange,  the
Midwest Stock Exchange and the Pacific Stock Exchange.

                         ADDITIONAL DETAILED INFORMATION

     The  Issuer  currently  offers  by  subscription   detailed  mortgage  loan
information in machine readable format updated on a monthly basis (the "Detailed
Information")  with  respect to each  outstanding  Series of  Certificates.  The
Detailed  Information  reflects payments made on the individual  mortgage loans,
including  prepayments in full and in part made of such mortgage  loans, as well
as  the  liquidation  of  any  such  mortgage  loans,  and  identifies   various
characteristics  of the mortgage loans.  For further  information  regarding the
Detailed  Information  and  subscriptions   thereto,   please  contact  Citicorp
Mortgage,  Inc.,  15851 Clayton Road West,  Ballwin,  Missouri 63011,  telephone
number (314) 256-6446.


                                       2
<PAGE>

                 INCORPORATION OF CERTAIN DOCUMENTS BY REFERENCE

     If a Guaranty is issued by Citicorp and is part of a Pool,  Citicorp's most
recent  Annual  Report and Form 10-K and any  subsequent  reports on Form 8-K or
Form 10-Q filed with the  Commission  by Citicorp are  incorporated  as of their
respective filing dates in this Prospectus by reference:

     If such a Guaranty  is part of a Pool,  all reports  subsequently  filed by
Citicorp  pursuant to Sections 13(a) and (c) of the Exchange Act, any definitive
proxy or information statements filed pursuant to Section 14 of the Exchange Act
in connection with any  stockholders'  meeting and any reports filed pursuant to
Section  15(d) of the Exchange Act prior to the  termination  of the offering of
the Certificates  offered hereby shall be deemed to be incorporated by reference
into this Prospectus and to be a part hereof.

     All documents filed by the Issuer with the Commission on behalf of the Pool
referred to in the accompanying Prospectus Supplement pursuant to Section 13(a),
13(c),  14 or 15(d) of the Exchange Act on or after the date of such  Prospectus
Supplement  and prior to the  termination  of any  offering of the  Certificates
issued by such Trust shall be  incorporated  by reference in this Prospectus and
be a part of this Prospectus from the date of the filing of such documents.  Any
statement  contained in a document  incorporated  by  reference  herein shall 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  incorporated by reference
modifies  or  replaces  such  statement.  Any  such  statement  so  modified  or
superseded  shall not,  except as modified or  superseded,  constitute a part of
this Prospectus.  Copies of the documents  incorporated herein by reference will
be provided to each person to whom this  Prospectus is delivered upon written or
oral request to Citicorp Mortgage Securities,  Inc., 909 Third Avenue, New York,
New York 10043, telephone number (212) 559-6727.

     Citicorp  will  provide  without  charge  to  each  person,  including  any
beneficial owner of Certificates,  to whom this Prospectus is delivered,  on the
request  of any such  person,  a copy of any or all of the  foregoing  documents
incorporated  herein by  reference  (other  than  exhibits  to such  documents).
Written or telephone  requests should be directed to Citicorp,  399 Park Avenue,
New York, NY 10043, Attention:  Investor Relations Department,  telephone number
(212) 559-2718.

     Each Series of  Certificates  will be issued  under a separate  Pooling and
Servicing  Agreement  (each a "Pooling  Agreement"),  between the Issuer and the
trustee  for such  Series  (the  "Trustee"),  substantially  in one of the forms
(each, a "Form of Pooling  Agreement")  filed as an exhibit to the  Registration
Statement of which this Prospectus is a part (the "Registration Statement"). The
summaries of certain  provisions  of the  Certificates  and such Form of Pooling
Agreement  included in this  Prospectus  do not  purport to be complete  and are
subject  to,  and  qualified  in their  entirety  by  reference  to,  all of the
provisions of the Form of Pooling  Agreement,  and the final  Pooling  Agreement
executed in connection with the issuance of a Series.  Section references herein
are references to the Form of Pooling  Agreement.  When used in this  Prospectus
(as  modified by the  description  in the related  Prospectus  Supplement),  the
summaries of certain  provisions of the Form of Pooling  Agreement also apply to
the form of Pooling Agreement  applicable to a Pool of Mortgage Loans underlying
a  CitiMortgageCertificate.  Terms used but not defined herein have the meanings
assigned  to them in the Form of  Pooling  Agreement.  References  herein to the
Trustee or the Issuer include, unless otherwise specified,  any agents acting on
behalf of the Trustee or any subcontractor of the Issuer, any of which agents or
subcontractors may be the Issuer or one of its affiliates.

     The  summaries   included  in  this  Prospectus   generally   describe  the
Certificates and related  matters.  Such summaries are subject to, and qualified
in their  entirety by  reference  to, the  Prospectus  Supplement  describing  a
particular  Series.  See  "Index of  Principal  Definitions"  for a  listing  of
principal  terms  used  herein  and the page  herein on which  each such term is
defined.

     NO  PERSON  HAS  BEEN  AUTHORIZED  TO  GIVE  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
REPRESENTATION  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 AND DO NOT CONSTITUTE 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.


                                       3
<PAGE>

                           DESCRIPTION OF CERTIFICATES

GENERAL

     The  Certificates  are issuable in one or more Series.  The Certificates of
each Series will evidence the entire beneficial  ownership interest in the Trust
as to  which  one or more  elections  will be made to treat  all or a  specified
portion  thereof (as specified in the related  Prospectus  Supplement) as one or
more REMICs as defined in Code Section 860D.  The Trust will consist of (i) such
Mortgage Loans or Mortgage  Certificates as from time to time are subject to the
Pooling Agreement;  (ii) such funds or assets as from time to time are deposited
in the Certificate  Account as described  herein under Appendix A: "The Mortgage
Loans and CitiMortgageCertificates --Payments on Mortgage Loans in Pools"; (iii)
property  acquired by  foreclosure  or deed in lieu of  foreclosure  of Mortgage
Loans as from  time to time  are  subject  to the  Pooling  Agreement;  (iv) any
combination of Guaranty,  letter of credit,  mortgage pool insurance policy, one
or more reserve funds and other form of credit support provided for such Series;
and (v) any title insurance policy and hazard  insurance policy  maintained with
respect to the Mortgaged Properties.

     Each  Series  will  consist  of  one  or  more  Classes  or  Subclasses  of
CitiCertificates  representing  "regular interests" in one or more REMICs within
the meaning of Code Section 860G(a)(1) and one Class or one Subclass of Residual
Certificates  representing  the "residual  interest"  with respect to each REMIC
within the meaning of Code Section 860G(a)(2).

     Each Series of Certificates  will consist of Residual  Certificates  and of
either  (i) a single  Class of  CitiCertificates,  (ii) two or more  Classes  of
CitiCertificates,  one or more Classes or Subclasses (the "Senior Certificates")
of which  will be senior in right of  distributions  to one or more of the other
Classes or Subclasses (the "Subordinated  Certificates") to the extent described
in the related  Prospectus  Supplement (any such Series, a  "Senior/Subordinated
Series");  (iii) two or more Classes or  Subclasses  of  CitiCertificates  which
differ as to the timing,  sequential  order,  rate or amount of distributions of
principal  or interest or both,  or as to which  distribution  of  principal  or
interest or both on any Class or  Subclass  may be made upon the  occurrence  of
specified events,  in accordance with a formula or schedule,  or on the basis of
certain types of  collections  or from  designated  portions of the Pool,  which
CitiCertificates may be Accrual CitiCertificates; or (iv) other types of Classes
or  Subclasses  of  CitiCertificates  as  described  in the  related  Prospectus
Supplement. Credit support for a Series of CitiCertificates may be provided by a
Guaranty,  letter of credit,  mortgage pool  insurance  policy,  special  hazard
insurance policy,  bankruptcy bond, surety insurance policy or a Reserve Fund as
described  herein  and  in  the  related  Prospectus   Supplement,   or  by  the
subordination  of one or more  Classes  or  Subclasses  of  CitiCertificates  or
Residual  Certificates  as  described  herein  and  in  the  related  Prospectus
Supplement,  or by  any  combination  of  the  foregoing.  See  "Description  of
Certificates--Credit Support."

     The Issuer may sell certain  Classes or  Subclasses  of  Certificates  of a
Series, including one or more Classes or Subclasses of Subordinated Certificates
or the  Residual  Certificates,  by means of this  Prospectus  and a  Prospectus
Supplement  if, at the time of such  sale,  at least one  nationally  recognized
statistical  rating   organization  has  rated  the  Classes  or  Subclasses  of
Certificates  of such  Series  in one of its  generic  rating  categories  which
signifies investment grade. Typically, the four highest categories (within which
there may be subcategories or gradations  indicating  relative standing) signify
investment grade.

     The Issuer may sell certain  Classes or  Subclasses  of  Certificates  of a
Series, including one or more Classes or Subclasses of Subordinated Certificates
or the  one  Class  or one  Subclass  of  Residual  Certificates,  in  privately
negotiated  transactions  exempt from  registration  under the Securities Act of
1933, as amended (the "Securities Act").

     Unless  otherwise  specified  in the  related  Prospectus  Supplement,  the
CitiCertificates  of specified  Classes or Subclasses of a Series will be issued
in the form of book  entries on the  records  of The  Depository  Trust  Company
("DTC") and participating members thereof.

     Interest  distributions and distributions in reduction of the Stated Amount
with  respect to  Certificates  of any Series  will be made on the  Distribution
Dates for such  Series  (i) by check  mailed  to  holders  of such  Certificates
registered as such on the applicable Record Date at their addresses appearing on
the Certificate  Register,  (ii) upon written request of a Certificateholder  to
the Trustee (or the paying  agent),  by wire transfer in  immediately  available
funds  to  the   account   of  such   Certificateholder   provided   that   such
Certificateholder  holds at least  the  minimum  denomination  specified  in the
applicable Prospectus  Supplement and Pooling Agreement,  or (iii) by such other
means 


                                       4
<PAGE>

as are  agreed  upon by the  paying  agent  and a  Certificateholder;  provided,
however,  that  distributions  in  reduction  of Stated  Amount which reduce the
Stated Amount of a Certificate to zero will be made only upon  presentation  and
surrender  of such  Certificate  at the office or agency of any paying agent for
such Series,  unless otherwise  specified in the related Prospectus  Supplement.
Notice  will  be  mailed  before  the  Distribution  Date  on  which  the  final
distribution  in reduction of Stated Amount on any Certificate is expected to be
made to the holder of such Certificate.

     The Trustee will  include with each  distribution  on a  CitiCertificate  a
statement  showing,  among other things,  the allocation of such distribution to
interest and  reductions of Stated  Amount and the remaining  Stated Amount of a
CitiCertificate  of each  Class  or  Subclass  of  that  Series  in the  minimum
denomination (or minimum permitted  increment above such denomination,  if less)
specified in the related Prospectus Supplement (a "Single Certificate"). On each
Distribution  Date before a distribution is first made on a particular  Class of
Accrual  CitiCertificates,  the Trustee  will also  furnish to each holder of an
Accrual  CitiCertificate  of such Class a  statement  showing  (i) the  interest
accrued during the Interest Accrual Period applicable to such Distribution Date,
(ii) the amount of accrued interest to be added to the Stated Amount thereof and
(iii) the Stated Amount of such an Accrual  CitiCertificate  after giving effect
to such  addition  to the  Stated  Amount  thereof,  in each case for an Accrual
CitiCertificate  which  is a  Single  Certificate.  In the  case of a Pool  that
consists of Whole or Partial Pool Issuer Certificates,  such statement will also
show  the  outstanding  and  initial  principal  amounts  of  each  such  Issuer
Certificate.

DISTRIBUTIONS TO CERTIFICATEHOLDERS

  General

     Beginning with the month next succeeding the month in which Certificates of
a Series are originally issued,  distributions of principal and interest thereon
at the Stated Rate will be made on the 25th day of each month, or if such day is
not  a  business  day,  the   immediately   following   business  day  (each,  a
"Distribution  Date"),  or on such other date as may be specified in the related
Prospectus  Supplement,  to the  persons  in whose  names the  Certificates  are
registered  at the close of business on the last  business day of the  preceding
month,  or  such  other  date  as may be  specified  in the  related  Prospectus
Supplement  (the  "Record  Date").  Alternatively,  if  the  related  Prospectus
Supplement so provides,  distributions will be made at quarterly, semi-annual or
other intervals,  but at least annually. The amount of each distribution will be
determined on the 18th day of the month of the related  Distribution Date or, if
such 18th day is not a business  day,  the  immediately  preceding  business day
(each,  a  "Determination  Date") or such other date as may be  specified in the
related Prospectus Supplement.

     Unless   otherwise   specified  in  the  related   Prospectus   Supplement,
distributions to Certificateholders of a Class or Subclass will be made pro rata
among  Certificateholders  of such  Class or  Subclass.  The manner in which any
available  credit  support will be allocated  among the Classes or Subclasses of
Certificates in a Series will be specified in the related Prospectus Supplement.

     Distributions  in reduction of Stated  Amount of and in respect of interest
on, the Certificates will be made by or on behalf of the Issuer out of, and only
to the extent of,  funds  available  for such  purpose  (the "Pool  Distribution
Amount") in the Certificate  Account of the related Series. All distributions on
the Certificates of each Series will be made on each  Distribution Date for such
Series from the Pool Distribution  Amount in accordance with the terms described
herein and in the related Prospectus Supplement, and as specified in the related
Pooling Agreement.

     Unless otherwise specified in the related Prospectus  Supplement,  for each
Pool  consisting  of  Mortgage  Loans,  the  Pool  Distribution   Amount  for  a
Distribution Date will be equal to the aggregate of all previously undistributed
proceeds of  payments on account of  principal,  including  amounts  received in
respect  of credit  support,  if any,  and any  payments  or other  recovery  of
principal on a Mortgage  Loan which is received in advance of its  scheduled due
date and is not accompanied by an amount as to interest  representing  scheduled
interest for any month subsequent to the month of prepayment (each, a "Principal
Prepayment"), and interest, including any payments made from any related buydown
subsidy account,  in respect of the Mortgage Loans received and posted after the
Cut-Off Date and before the related Determination Date, except in each case:

          (i) payments which were due on or before the Cut-Off Date;

          (ii)  any   Principal   Prepayment   received   during  the  month  of
     distribution and any related payments of interest representing interest for
     the month of distribution or any portion thereof (which will be distributed
     the next month);


                                       5
<PAGE>

          (iii) payments which represent early receipt of scheduled  payments of
     principal  and interest due on a date or dates  subsequent to the first day
     of the month of distribution;

          (iv) that  portion  of  payments  on account  of  interest  (including
     payments made from a buydown  subsidy account  established  with respect to
     such  Mortgage  Loans)  on the  Mortgage  Loans  in the Pool in  excess  of
     interest at the Pass-Through Rate;

          (v) that  portion of the  proceeds  of the  liquidation  of  defaulted
     Mortgage Loans which represents servicing compensation to the Issuer and is
     to be paid to the Issuer from the related Certificate Account to the extent
     described     in     Appendix     A:     "The     Mortgage     Loans    and
     CitiMortgageCertificates--Realization Upon Defaulted Mortgage Loans"; and

          (vi) any other  amount  not to be  included  in the Pool  Distribution
     Amount pursuant to the related Pooling Agreement.

     Unless otherwise  specified in the related  Prospectus  Supplement for each
Pool consisting of Mortgage  Certificates,  the Pool  Distribution  Amount for a
Distribution  Date will equal all previously  undistributed  amounts received as
principal and interest on such Mortgage  Certificates  in accordance  with their
terms   on   or   prior   to   the   related   Determination   Date   (or,   for
CitiMortgageCertificates, the Distribution Date).

  Distributions of Interest

     Unless otherwise specified in the related Prospectus Supplement, each Class
or  Subclass of  Certificates  entitled to a  distribution  of interest  will be
entitled to such  interest at a per annum rate (the "Stated  Rate") which may be
fixed or, subject to federal income tax requirements,  may vary over the life of
the Certificates.

     Unless otherwise specified in the related Prospectus Supplement, each Class
or Subclass of Certificates of a Series, other than Accrual CitiCertificates, if
any,  will be entitled to receive  distributions  in respect of interest on each
Distribution  Date and will accrue interest on the outstanding  Stated Amount of
each such Class or Subclass of  Certificates  at the Stated Rate  (calculated on
the basis of a 360-day year of twelve  30-day  months) and for the periods (each
an "Interest Accrual Period")  specified in the Prospectus  Supplement.  Accrual
CitiCertificates  will  accrue  interest  as  described  above but such  accrued
interest will not be distributed until the occurrence of the events specified in
the related Prospectus Supplement.  Prior to such time, the interest accrued but
not  distributed  on the  Accrual  CitiCertificates  will be added to the Stated
Amount thereof on each Distribution Date.

  Distributions in Reduction of Stated Amount

     Each Certificate entitled to distributions  representing principal payments
on the Mortgage Loans or Mortgage  Certificates  included in the Pool underlying
such  Series  will  have a "Stated  Amount"  which,  at any time will  equal the
maximum amount in respect of principal which the holder of such Certificate will
be entitled to receive out of the future cash flow on the Mortgage  Loans or the
Mortgage  Certificates,  and out of other assets, if any, included in the Trust.
The  Prospectus  Supplement  will  specify  the  method by which  the  amount of
distributions   in  reduction  of  Stated  Amount  to  be   distributed  to  the
Certificateholders  on each  Distribution  Date (the  "Certificate  Distribution
Amount") will be calculated and the manner in which the Certificate Distribution
Amount  will  be  allocated   among  the  Classes  or  Subclasses   entitled  to
distributions  thereof.  Distributions  in  reduction  of the  Stated  Amount of
Certificates  will  be  made on each  Distribution  Date to the  holders  of the
Certificates  then  entitled to receive such  distributions  until the aggregate
amount of distributions  have reduced the Stated Amount of each Certificate of a
Class or Subclass to zero. The initial aggregate Stated Amount of all Classes or
Subclasses of a Series may equal the aggregate  outstanding  principal amount of
the related Mortgage Loans or Mortgage Certificates as of the applicable Cut-Off
Date  and,  for  each  Class  or  Subclass,  will be  specified  in the  related
Prospectus Supplement. Alternatively, the initial aggregate Stated Amount of all
Classes  or  Subclasses  of a Series  of  Certificates  may  equal  the  initial
aggregate Pool Value of the related  Mortgage Loans or Mortgage  Certificates as
of the applicable Cut-Off Date.

     The  aggregate  "Pool  Value" of the  related  Mortgage  Loans or  Mortgage
Certificates  will be the Stated Amount of the Certificates of that Series that,
based on certain  assumptions and regardless of any prepayments on such Mortgage
Loans or Mortgage Certificates,  can be supported by either the future scheduled
payments  on the  Mortgage  Loans  included  in the Pool or the  mortgage  loans
underlying  the  Mortgage  Certificates  included  in the  Pool  (with  interest
adjusted to the applicable  Pass-Through Rate), or the proceeds of the Principal
Prepayment  of such Mortgage  Loans or mortgage  loans  underlying  the Mortgage
Certificates, together with reinvestment income, if any, thereon at 


                                       6
<PAGE>

the rate and for the period specified in the related Prospectus  Supplement and,
if applicable,  amounts available to be withdrawn from any Reserve Fund for such
Series, as further or otherwise specified in the related Prospectus  Supplement.
In calculating Pool Values of Mortgage  Certificates and Mortgage Loans included
in the Pool, future distributions on a Mortgage Loan will be determined based on
future  scheduled  payments  (after giving  effect to any Principal  Prepayments
previously received and posted) on such Mortgage Loan, and future  distributions
on a  Mortgage  Certificate  will  be  determined  either  as if the  underlying
mortgage loans  constituted a single  mortgage loan having the highest  mortgage
rate  and  longest  maturity  of any  mortgage  loan  underlying  such  Mortgage
Certificate  or  separately  for each  mortgage  loan  underlying  such Mortgage
Certificate.  Any similar Mortgage Loans or mortgage loans  underlying  Mortgage
Certificates  or any Mortgage  Certificates  that are backed by the same pool of
mortgage loans,  or similar pools of mortgage loans,  may be aggregated into one
or more groups (each, a "Pool Value  Group"),  each of which will be assigned an
aggregate Pool Value  calculated as if all such Mortgage Loans or mortgage loans
in, or all mortgage loans underlying all the Mortgage  Certificates in, the Pool
Value Group  constituted a single mortgage loan having the highest mortgage rate
and longest maturity of any such mortgage loan for such Pool Value Group.  There
are a number of alternative  means of determining  the Pool Values of a Mortgage
Certificate,  Mortgage Loan or Pool Value Group, including  determinations based
on the discounted present value of the remaining scheduled distributions thereon
and  determinations  based on the relationship  between the  Pass-Through  Rates
borne thereby and the Stated Rates of the related Series of Certificates.

     With  respect to any Series as to which the  initial  Stated  Amount of the
Certificates is calculated on the basis of the Pool Values of the Mortgage Loans
or the Mortgage  Certificates,  the  Prospectus  Supplement for each such Series
will describe the method or methods (and related  assumptions) used to determine
the Pool Value of the Mortgage Certificates and Mortgage Loans or the Pool Value
Groups securing such Series.  In any event,  the aggregate of the Pool Values of
all the Mortgage  Certificates  and Mortgage Loans and all the Pool Value Groups
included in the Pool for a Series of Certificates  will always be at least equal
to the  aggregate  Stated  Amount  of  the  Certificates  of  such  Series.  The
Certificate Distribution Amount with respect to a Series as to which the initial
Stated Amount of the  Certificates is calculated on the basis of the Pool Values
of the Mortgage Loans or the Mortgage  Certificates will generally be calculated
on the basis of the decline in the aggregate  Pool Values of the Mortgage  Loans
or Mortgage  Certificates included in the Pool during the related Due Period, or
as otherwise described in the related Prospectus Supplement.

     The  Stated  Amount  of  a   Certificate   will  decline  as  a  result  of
distributions  attributable  to  principal  that are made to the  holders of the
Certificates  and, to the extent described herein and in the related  Prospectus
Supplement, as a result of losses on the Mortgage Loans or Mortgage Certificates
in the related Pool, to the extent that the credit support (including the amount
of  subordination  provided  to  Senior  Certificates  in a  Senior/Subordinated
Series)  provided for such Class or Subclass of  Certificate  is  inadequate  to
cover such losses.  The Stated Amount of a Certificate  may increase in the case
of Accrual  CitiCertificates  by interest accrued but not then  distributable on
such  Accrual  CitiCertificates,  and,  to the extent  that a Pool  consists  of
adjustable  rate mortgages  which provide for limitations on the amount by which
monthly  payments by a Mortgagor  may be  increased  and changes in the interest
rate on the Mortgage Loan are made more  frequently than changes in the payment,
if an increase in the interest  rate on the Mortgage  Loan is not covered by the
amount of the related scheduled monthly payment.

     The  aggregate  amount  which will be  distributed  in  reduction of Stated
Amount to holders of  CitiCertificates  of each Series then entitled  thereto on
any  Distribution  Date for such  Series  will  equal,  to the extent  funds are
available,  the sum of (i) the aggregate  Certificate  Distribution Amount, (ii)
the amount of interest, if any, accrued on any Accrual  CitiCertificates of such
Series during the related  Interest  Accrual  Period but not then required to be
distributed,  such amount being added to the Stated  Amount  thereof,  (iii) the
applicable  percentage  of the  Spread,  if  any,  specified  in the  Prospectus
Supplement  and (iv) any  amounts  in  reduction  of  Stated  Amount  previously
distributable but not yet distributed.

     Unless otherwise  specified in the related  Prospectus  Supplement,  in the
case of CitiCertificates of any Series consisting of more than one Class, if the
Amount  Available  under  the  credit  support  (including  the  amount  of  any
subordination  provided to Senior Certificates in a Senior/Subordinated  Series)
provided for such Series is inadequate  to cover any loss on the Mortgage  Loans
with the result that there are insufficient  funds on deposit in the Certificate
Account  on the  next  succeeding  Distribution  Date  to pay  the  amount  then
distributable  to  any  Class  of  CitiCertificates  then  entitled  to  receive
distributions  in reduction of Stated Amount (a "Loss Allocation  Event"),  then
the amount then available for distribution in reduction of Stated Amount on such
Distribution  Date and each subsequent  


                                       7
<PAGE>

Distribution  Date will be distributed on such Distribution Date pro rata to the
holders of  CitiCertificates  of a Class then  outstanding  notwithstanding  any
priorities among Subclasses of such Class of  CitiCertificates  set forth in the
related  Prospectus  Supplement  and pro rata to the  holders  of each  Class of
CitiCertificates  based on the  outstanding  Stated  Amount  of all  Classes  of
CitiCertificates  then  outstanding.  Unless otherwise  specified in the related
Prospectus  Supplement,  any  shortfalls  of interest will be allocated on a pro
rata basis based on the amount of interest then distributable (or allocable,  in
the case of each Class of Accrual  CitiCertificates)  to each Class. On or after
the Distribution Date on which a Loss Allocation Event occurs, the Stated Amount
of all  Classes  then  outstanding  will be reduced on a pro rata  basis,  or as
otherwise specified in the related Prospectus  Supplement,  by the amount of any
losses actually incurred with respect to the Mortgage Loans.

     Funds  available  for  distribution  from  the  Certificate  Account  on  a
Distribution  Date will include  distributions  on Mortgage  Certificates in the
Pool  received in the related Due Period and payments  received  with respect to
Mortgage Loans in the Pool in the related Due Period, as described  herein.  See
Appendix  A:  "The  Mortgage  Loans  and  CitiMortgageCertificates--Payments  on
Mortgage Loans in Pools." Amounts remaining in the Certificate Account which are
available for distribution, as so described, after payment of all amounts due to
holders of  CitiCertificates,  and after payment of certain expenses  therefrom,
will be distributed to holders of Residual Certificates on a pro rata basis.

     The "Spread" with respect to a  Distribution  Date for a Series will be the
excess  of (a)  the  sum of  (i)  all  distributions  received  on the  Mortgage
Certificates or Mortgage Loans (net of (1) any Servicing  Compensation,  and (2)
in the  case  of  Mortgage  Loans,  any  distributions  on such  Mortgage  Loans
representing the receipt of (A) scheduled payments of principal and interest due
on a date  subsequent to the period (a "Due  Period")  beginning at the close of
business  on the last day of the  preceding  Due Period  (or, in the case of the
first Due Period,  beginning  at the close of business on the Cut-Off  Date) and
ending at the close of business on the business day preceding the  Determination
Date in  respect  of such  Distribution  Date,  and  (B)  Principal  Prepayments
received during the month of the applicable  Determination Date) included in the
Pool for such Series in the Due Period preceding such Distribution Date, and, in
the case of the  first Due  Period,  any  amount  deposited  in the  Certificate
Account on the Closing Date, (ii) income from reinvestment,  if any, of such net
distributions  and any amount on deposit  in the  Reserve  Fund and (iii) to the
extent  specified  in the  related  Prospectus  Supplement,  the  amount of cash
withdrawn from any Reserve Fund or buydown  subsidy  account since the preceding
Distribution  Date for such Series (or since the Closing Date in the case of the
first  Distribution  Date for such  Series) and  required to be deposited in the
Certificate  Account  for  such  Series,  over  (b) the sum of (i) all  interest
distributed on the CitiCertificates of such Series or added to the Stated Amount
of the Accrual  CitiCertificates  of such Series on such Distribution Date, (ii)
the aggregate  Certificate  Distribution  Amount for such Series with respect to
such  Distribution  Date,  (iii)  if  applicable  to such  Series,  any  Special
Distributions  in respect of such Series made since the  preceding  Distribution
Date for  such  Series  (or  since  the  Closing  Date in the case of the  first
Distribution  Date for such Series),  (iv) any  reimbursements of payments under
any credit  support for such Series or Voluntary  Advances  with respect to such
Distribution Date, (v) any amounts paid to the issuer of credit support and (vi)
any  REMIC   Servicing  Fee  payable  during  the  Due  Period   preceding  such
Distribution Date.

     Series of CitiCertificates having other than monthly Distribution Dates may
receive  special  distributions  ("Special  Distributions")  with respect to any
period for which  distributions  are received on the related  Mortgage  Loans or
Mortgage Certificates, other than such periods which include Distribution Dates,
if, as a result of principal  prepayments on the mortgage  loans  underlying the
Mortgage Certificates or on the Mortgage Loans in the Pool for such Certificates
or  low  reinvestment  yields,  or  both,  the  Trustee  determines,   based  on
assumptions as to timing of receipt of  distributions,  reinvestment  income and
prepayment rates,  among others,  specified in the Pooling  Agreement,  that the
amount of cash anticipated to be on deposit in the Certificate  Account for such
Series on the  earlier of the next  Distribution  Date or the second  succeeding
Distribution  Date  for  such  Series  may be  less  than  the  sum of  interest
distributions and distributions in reduction of Stated Amount that would be made
on such  date if it  were a  Distribution  Date.  Special  Distributions  on the
CitiCertificates  of a Series  will be  allocated  in the same  manner  as would
distributions on the next Distribution Date for such Series.

CREDIT SUPPORT

  General

     Credit  support  may be  provided  with  respect to one or more  Classes or
Subclasses  of  CitiCertificates  or with  respect to the assets in the  related
Trust.  Credit  support may be in the form of the  subordination  of one or more
Classes


                                       8
<PAGE>

or Subclasses of CitiCertificates of such Series to one or more other Classes or
Subclasses of CitiCertificates, a limited guaranty issued by Citicorp or another
guarantor,  a letter of credit,  a mortgage  pool  insurance  policy,  a special
hazard insurance  policy, a bankruptcy bond, a surety policy,  the establishment
of one or more reserve  funds or any other form of credit  support  described in
the  applicable  Prospectus  Supplement,  or any  combination  of the foregoing.
Unless otherwise specified in the Prospectus Supplement, credit support will not
provide protection against all risks of loss and will not guarantee repayment of
the entire Stated Amount of the CitiCertificates and interest thereon. If losses
occur which exceed the amount  covered by credit  support or are of a type which
are not covered by the credit support, holders of the CitiCertificates will bear
their  allocable  share  of  such  deficiencies  as  described  in  the  related
Prospectus Supplement.

  Subordination

     If so specified in the related  Prospectus  Supplement,  credit support for
one   or   more   Classes   or   Subclasses   of   Senior   Certificates   in  a
Senior/Subordinated  Series may include  one or more  Classes or  Subclasses  of
Subordinated  Certificates,  such that  distributions  in respect  of  Scheduled
Principal,  Principal  Prepayments,  interest or any  combination  thereof  that
otherwise  would have been  payable  to one or more  Classes  or  Subclasses  of
Subordinated  Certificates  will  instead  be  payable to holders of one or more
Classes or Subclasses of Senior  Certificates under the circumstances and to the
extent  specified  in the  related  Prospectus  Supplement.  Such  subordination
provisions will have the effect of accelerating  the  amortization of the Senior
Certificates  and  increasing  the  respective   percentage  ownership  interest
evidenced by the  Subordinated  Certificates  in the related  Trust,  as well as
preserving the  availability of the  subordination  provided by the Subordinated
Certificates.

     If so specified in the related Prospectus Supplement,  delays in receipt of
Scheduled  Principal and losses on defaulted  Mortgage  Loans or mortgage  loans
underlying the Mortgage  Certificates will be borne first by the various Classes
or Subclasses of Subordinated  Certificates  under the circumstances and subject
to the limitations  specified in the related Prospectus  Supplement,  which will
have the effect of increasing the respective  percentage  ownership  interest of
the Senior Certificates in the Trust. The aggregate  distributions in respect of
delinquent  Scheduled Principal and the aggregate losses in respect of defaulted
Mortgage Loans or mortgage loans underlying Mortgage  Certificates which must be
borne by each Class or Subclass of Subordinated  Certificates at any one time or
over the lives of the Certificates by virtue of the subordination and the amount
of   the   distributions    otherwise    distributable   to   the   Subordinated
Certificateholders  that will be distributable to the Senior  Certificateholders
on any  Distribution  Date  may  be  limited  as  specified  in  the  Prospectus
Supplement  (the  "Subordination  Amount").  If the aggregate  distributions  in
respect of delinquent Scheduled Principal and/or the aggregate losses in respect
of defaulted Mortgage Loans or mortgage loans underlying  Mortgage  Certificates
were to exceed the total amounts  payable and available for  distribution to the
Subordinated  Certificateholders or, if applicable, were to exceed the specified
maximum  Subordination   Amount,   holders  of  the  Senior  Certificates  could
experience losses.

     The   protection   afforded  to  the  Senior   Certificateholders   by  the
preferential  right  of  the  Senior   Certificateholders   to  receive  current
distributions  from the Pool may be  enhanced  to the  extent  specified  in the
related  Prospectus  Supplement by the  establishment  and maintenance of one or
more  reserve  accounts  (each a  "Subordination  Reserve  Fund")  funded by the
retention of all or any portion of distributions  otherwise distributable to the
holders of the Subordinated  Certificates on any Distribution  Date, by all or a
portion  of the  Spread  and/or by an  initial  deposit  of the  Issuer.  Unless
otherwise  specified in the related  Prospectus  Supplement,  the  Subordination
Reserve  Fund will be  included in the Trust.  If  specified  in the  Prospectus
Supplement relating to a Series of Certificates,  the Subordination Reserve Fund
may be funded in any other manner  acceptable to the rating  agencies rating the
Series of  Certificates  and consistent  with an election to treat the Trust (or
one or more  segregated  pools of assets therein) for such Series as one or more
REMICs (as the case may be).

     Eligible Investments for monies deposited in the Subordination Reserve Fund
will be specified in the  applicable  Pooling  Agreement and,  unless  otherwise
provided in the  related  Prospectus  Supplement,  will mature no later than the
next Distribution Date.

     Holders of  Subordinated  Certificates  of a Series will not be required to
refund any amounts which have been properly  distributed to them,  regardless of
whether there are  sufficient  funds to distribute to Senior  Certificateholders
the amounts to which they are later entitled.


                                       9
<PAGE>

  Limited Guaranty

     If so  specified  in the  Prospectus  Supplement  relating  to a Series  of
Certificates,  credit  support  may be  provided  by a Guaranty  of  Citicorp or
another guarantor specified in such Prospectus Supplement.  The coverage, amount
and  frequency of any reduction in coverage  provided by a Guaranty  issued with
respect  to a  Series  of  Certificates  will  be set  forth  in the  Prospectus
Supplement relating to such Series.

  Letter of Credit

     If so  specified  in the  Prospectus  Supplement  relating  to a Series  of
Certificates,  credit  support may be  provided  by the  issuance of a letter of
credit  by the  bank  or  financial  institution  specified  in  the  applicable
Prospectus  Supplement.  The coverage,  amount and frequency of any reduction in
coverage  provided  by a letter of credit  issued  with  respect  to a Series of
Certificates  will be set forth in the  Prospectus  Supplement  relating to such
Series.

  Reserve Fund

     If so  specified  in the  Prospectus  Supplement  relating  to a Series  of
Certificates,  a reserve fund (the "Reserve  Fund") may be established  with the
Trustee by the Issuer.  The manner of the  funding of the  Reserve  Fund and the
amount  required from time to time to be on deposit therein will be set forth in
the Prospectus Supplement.

  Pool Insurance Policies

     If so  specified  in the  Prospectus  Supplement  relating  to a Series  of
Certificates,  the Issuer will obtain a pool  insurance  policy for the Mortgage
Loans in the  related  Pool.  The pool  insurance  policy  will  cover  any loss
(subject to the  limitations  described in a related  Prospectus  Supplement) by
reason of default to the extent a related  Mortgage  Loan is not  covered by any
primary mortgage  insurance  policy.  The amount and principal terms of any such
coverage will be set forth in the Prospectus Supplement.

  Special Hazard Insurance Policies

     If so specified in the related  Prospectus  Supplement,  for each Series of
Certificates  as to which a pool insurance  policy is provided,  the Issuer will
also obtain a special hazard insurance policy for the related Pool in the amount
set forth in such Prospectus  Supplement.  The special hazard  insurance  policy
will,  subject  to  the  limitations  described  in  the  applicable  Prospectus
Supplement,  protect  against loss by reason of damage to  Mortgaged  Properties
caused by certain  hazards not insured against under the standard form of hazard
insurance policy for the respective states in which the Mortgaged Properties are
located.  The amount and principal  terms of any such coverage will be set forth
in the Prospectus Supplement.

  Mortgagor Bankruptcy Bond

     If so specified in the applicable Prospectus  Supplement,  losses resulting
from a bankruptcy proceeding relating to a mortgage affecting the Mortgage Loans
in a Pool with  respect  to a Series of  Certificates  will be  covered  under a
mortgagor  bankruptcy  bond (or any other  instrument  that will not result in a
downgrading of the rating of the  Certificates  of a Series by the rating agency
or rating  agencies that rated such Series).  Any mortgagor  bankruptcy  bond or
such other  instrument  will  provide  for  coverage  in an amount  meeting  the
criteria of the rating agency or rating agencies rating the  Certificates of the
related Series.  The amount and principal terms of any such coverage will be set
forth in the related Prospectus Supplement.

  Draws Under Credit Support Other Than Subordination

     The  obligation of the issuer of credit support to make payments under such
credit  support for the benefit of holders of  Certificates  shall be limited at
any time to the amount  available  (the "Amount  Available")  at such time.  The
initial  Amount  Available  shall be equal to the  percentage  specified  in the
Prospectus  Supplement of the aggregate Adjusted Balance of the related Mortgage
Loans as of the applicable Cut-Off Date (the "Credit Support  Percentage").  The
Amount Available to be paid under any credit support may be subject to reduction
commencing  at the  times  and  in  the  amounts  described  in  the  applicable
Prospectus Supplement and Pooling Agreement.  In addition,  the Amount Available
to be paid under any credit  support for losses or  delinquencies  arising  from
certain causes may be limited to the extent set forth in the related  Prospectus
Supplement.  To the extent set forth in the applicable Prospectus Supplement and
in the event that more than one series of  CitiMortgageCertificates  underlies a
Series of  Certificates,  credit  support may cover two or more of the series of
such CitiMortgageCertificates. This may be accomplished by the credit support on
the  individual  series of  CitiMortgageCertificates  being  consolidated  or by

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<PAGE>

credit   support   which   relates   to  more   than  one  of  the   series   of
CitiMortgageCertificates   and   provides   coverage  for  all  such  series  of
CitiMortgageCertificates  up to the Credit Support  Percentage  specified in the
Prospectus  Supplement of the aggregate  Adjusted  Balance of the Mortgage Loans
underlying such CitiMortgageCertificates.

     The  Issuer  or the  Servicer  will be  required  to  determine  as of each
Determination  Date whether a payment under any credit support will be necessary
on the next  Distribution  Date.  The  Issuer or the  Servicer  will  advise the
Trustee of such  determination  and make a demand for  payment  under the credit
support to the issuer of credit support in accordance with the provisions of the
credit support and the applicable Pooling Agreement, as described in the related
Prospectus  Supplement.  The proceeds of such payments  under the credit support
will be deposited into the Certificate  Account.  Unless otherwise  specified in
the related  Prospectus  Supplement,  payments received under the credit support
will be applied first to reimburse Voluntary Advances.

     Payments made by an issuer of credit  support  pursuant to its  obligations
under  the  credit  support  to  cover  delinquencies  will  be  allocated  on a
loan-by-loan  basis  to  specific  Mortgage  Loans,  and  the  payments  will be
reimbursed,  as the  specific  Mortgagors  make their  delinquent  payments,  by
monthly withdrawals from the Certificate Account as such delinquent installments
are received.  Remaining  obligations under the credit support will be increased
as such  payments are  reimbursed.  In addition,  payments made under the credit
support to cover amounts in respect of interest  distributed  (but not received)
with respect to Principal Prepayments will be reimbursed to the issuer of credit
support  from  Servicing  Compensation  otherwise  payable  to the Issuer or the
Servicer.   The  credit  support  will  be  increased  to  the  extent  of  such
reimbursement.

     If any  Mortgage  Loans  become  Liquidating  Loans,  the  issuer of credit
support may, if so specified in the related Prospectus Supplement,  be obligated
to purchase  from the  Trustee  such  Liquidating  Loans up to the amount of the
remaining  obligation under the credit support. The Servicer may make an advance
of a payment (a "Purchase  Amount  Advance") in respect of a Liquidating Loan on
behalf of the issuer of credit  support in order to avoid demands or draws under
such credit support. If at any time the issuer of credit support makes a payment
or the  Servicer  makes a  payment  on its  behalf  in the  amount  of the  full
outstanding  principal  balance of and accrued  interest on a  Liquidating  Loan
(less any  unreimbursed  payments  previously  made under the credit  support in
respect  of such  Liquidating  Loan),  the  issuer  of  credit  support  (or its
designee)  will be entitled to receive an assignment of such  Liquidating  Loan,
and the issuer of credit  support (or such  designee)  will  thereafter own such
Liquidating Loan free of any further  obligation with respect thereto.  Payments
made with respect to such a Liquidating  Loan will be  reimbursed  only from the
proceeds (net of  liquidation  costs) of such  Liquidating  Loan.  The remaining
obligations  under the credit  support  will be  increased  to the  extent  such
payments are so  reimbursed.  To the extent the proceeds of  liquidation  of any
Liquidating  Loan  acquired  by the  issuer  of  credit  support  in the  manner
described  in this  paragraph  exceed the amount of payments  made with  respect
thereto, in the case of a Guaranty issued by Citicorp, Citicorp will be entitled
to retain such  proceeds and in the case of other credit  support,  the Servicer
will be entitled to such  proceeds  unless  otherwise  specified  in the related
Prospectus Supplement.

     The term  "Liquidating  Loan" means: (a) each Mortgage Loan with respect to
which foreclosure  proceedings have been commenced (and the Mortgagor's right of
reinstatement or redemption has expired), (b) each Mortgage Loan with respect to
which the Issuer or the Servicer has agreed to accept a Transfer  Instrument  in
lieu of foreclosure  and in whole or partial  satisfaction of the Mortgage Loan,
and, if the Pool contains Cooperative Loans, Liquidating Loan will mean not only
each  Cooperative  Loan as to which (a) or (b) is  applicable  but also (c) each
Cooperative  Loan  with  respect  to which  none of the  interest  or  principal
installments  which  became due and payable  during the previous six months have
been  paid  and (d)  each  Cooperative  Loan  with  respect  to which a court of
competent  jurisdiction  has entered a final  judgment  reducing  the  scheduled
monthly principal or interest  installment payable on such Cooperative Loan. See
Appendix A: "The Mortgage Loans and  CitiMortgageCertificates--Realization  Upon
Defaulted Mortgage Loans."

     If any Mortgage Loans become Liquidated Loans, the issuer of credit support
may, if so specified in the Prospectus Supplement be obligated to pay the amount
of any loss on such Liquidated Loan up to the amount of the remaining obligation
under the credit  support.  The amount of any loss on a Liquidated Loan is equal
to the excess of (a) the unpaid  principal  balance of such Liquidated Loan plus
accrued interest thereon over (b) the liquidation  proceeds,  net of liquidation
expenses,  received with respect thereto. In the event that the amount of such a
loss is not covered,  in whole or in part, by any credit support,  the loss will
be allocated  among the  Certificates  as  specified  in the related  Prospectus
Supplement.

                                       11
<PAGE>

     The term "Liquidated  Loan" means a Mortgage Loan with respect to which the
related Mortgaged Property has been acquired,  liquidated or foreclosed and with
respect  to which  the  Servicer  or the  Master  Servicer,  as the case may be,
determines that all  liquidation  proceeds which it expects to recover have been
recovered,  or a  Mortgage  Loan with  respect  to which the  related  Mortgaged
Property is retained or sold by the  Mortgagor and for which the Servicer or the
Master Servicer,  as the case may be, has accepted payment from the Mortgagor in
consideration  for the release of the  Mortgage in an amount  which is less than
the  outstanding  principal  balance  of such  Mortgage  Loan as a  result  of a
determination by the Servicer or the Master  Servicer,  as the case may be, that
the  potential  liquidation  expenses  with respect to such  Mortgage Loan would
exceed  the amount by which the cash  portion  of such  payment is less than the
outstanding  principal  balance of such  Mortgage  Loan.  See  Appendix  A: "The
Mortgage Loans and CitiMortgageCertificates--Realization Upon Defaulted Mortgage
Loans."

     Prospective  purchasers  of  Certificates  must, in the event of default by
Mortgagors, look to the credit of the issuer of credit support, to the extent of
its obligations under the credit support. If the Amount Available under a credit
support is exhausted, the Certificateholders of the related Series will bear all
risks of delinquency  and loss resulting from defaults by Mortgagors  (including
losses not covered by primary  mortgage  insurance)  and from hazard  losses not
covered by the standard hazard insurance  policies  required to be maintained by
the Mortgagors,  and the Certificateholders  must look primarily to the value of
the properties securing defaulted Mortgage Loans for recovery of the outstanding
principal  and  unpaid  interest.  See  Appendix  A:  "The  Mortgage  Loans  and
CitiMortgageCertificates--Certain  Legal Aspects of the Mortgage Loans." None of
the issuer of any credit support, the Issuer nor the Servicer intends to advance
its  own  funds  with  respect  to any  Series  of  Certificates  or  series  of
CitiMortgageCertificates,  except  (i)  in the  case  of the  issuer  of  credit
support,  to the limited extent of its obligations under such credit support and
(ii)  in the  case of the  Issuer  or the  Servicer,  in  certain  circumstances
involving  recoverable  costs of restoration of damaged  property,  as described
under Appendix A: "The Mortgage Loans and  CitiMortgageCertificates--Realization
Upon  Defaulted  Mortgage  Loans," and certain other costs as described  therein
under  "--Servicing and Other Compensation and Payment of Expenses," and to make
Voluntary Advances to the extent set forth in the related Prospectus Supplement.

LAST SCHEDULED DISTRIBUTION DATE

     The "Last Scheduled  Distribution Date" for each Class of  CitiCertificates
of a Series is the latest date on which (based on the  assumptions  set forth in
the related  Prospectus  Supplement) the Stated Amount of such Class is expected
to be reduced to zero.  Since the rate of  distributions  in reduction of Stated
Amount for each Series will depend on, among other  things,  the rate of payment
(including  prepayments)  of the principal of the mortgage loans (which include,
for purposes of this  subsection,  Mortgage Loans included  directly in the Pool
and  mortgage  loans  underlying  Mortgage  Certificates)  in the  Pool for such
Series,  the actual  last  Distribution  Date for any Class of  CitiCertificates
could occur significantly earlier than its Last Scheduled Distribution Date.

     The rate of payments on the Mortgage  Loans in the Pool for any Series will
depend on their particular  characteristics,  as well as on the prevailing level
of interest rates from time to time and other economic factors, and no assurance
can be given as to the actual prepayment  experience of such mortgage loans. See
Appendix  A:  "The  Mortgage   Loans  and   CitiMortgageCertificates--Prepayment
Experience."

     Weighted average life refers to the average amount of time that will elapse
from the date of  issuance  of a  Certificate  until the  Stated  Amount of such
Certificate  has  been  reduced  to  zero.  The  weighted  average  life  of the
Certificates of a Series will be influenced by, among other things,  the rate at
which  principal on the  mortgage  loans  (which  include,  for purposes of this
subsection,  Mortgage  Loans  included  directly in the Pool and mortgage  loans
underlying  Mortgage  Certificates)  underlying or included in the Pool for such
Certificates  is paid,  which may be in the form of  scheduled  amortization  or
prepayments  (including  prepayments and liquidations due to default,  casualty,
receipt of insurance proceeds, condemnation and the like).

     Prepayments  on  mortgage  loans  are  commonly   measured  relative  to  a
prepayment standard or model. Each Prospectus Supplement for CitiCertificates of
any Series consisting of more than one Class of  CitiCertificates  will describe
the  payment  standard  or model used for the  related  Series and will  contain
tables  setting  forth the  projected  weighted  average  life of each  Class of
CitiCertificates  of such Series and, to the extent  distributions  are not made
pro rata among all Classes of CitiCertificates of such Series, the percentage of
the Initial Stated Amount of each Class of  CitiCertificates of such Series that
would be  outstanding on specified  Distribution  Dates for such Series based on
the assumptions stated in such Prospectus Supplement, including assumptions that
prepayments on the mortgage loans 


                                       12
<PAGE>

underlying  or included in the Pool are made at rates  corresponding  to various
percentages of the  prepayment  standard or model  specified in such  Prospectus
Supplement.

     There  is,  however,   no  assurance  that  prepayment  of  mortgage  loans
underlying or included in the Pool for any Series of  Certificates  will conform
to any prepayment standard or model. The rate of principal  prepayments on pools
of mortgage loans is influenced by a variety of economic, geographic, social and
other  factors.   In  general,   however,  if  prevailing  interest  rates  fall
significantly  below the interest  rates on the  mortgage  loans  underlying  or
included  in the Pool for a Series  of  Certificates,  such  mortgage  loans are
likely to be the  subject of higher  principal  prepayments  than if  prevailing
rates remain at or above the rates borne by such  mortgage  loans.  It should be
noted that  certain  Mortgage  Certificates  included  in a Pool for a Series of
Certificates  may be backed by mortgage  loans with  different  interest  rates.
Accordingly,  the prepayment  experience of these Mortgage  Certificates will to
some  extent be a function of the mix of interest  rates of the  mortgage  loans
underlying such Mortgage Certificates. Furthermore, the stated pass-through rate
of certain Mortgage  Certificates may be two or more percentage points less than
the  Note  Rates of the  underlying  mortgage  loans.  Other  factors  affecting
prepayment of mortgage loans include changes in mortgagors'  housing needs,  job
transfers,  unemployment,  mortgagors' net equity in the properties securing the
mortgage loans and servicing decisions.

RESIDUAL CERTIFICATES

     The Residual  Certificates will represent  "residual  interests" in a REMIC
within the meaning of Code Section  860G(a)(2).  See "Certain Federal Income Tax
Consequences." A Class of Residual  Certificates  with respect to a Pool will be
issued  simultaneously  with the  CitiCertificates  of a Series.  Such  Residual
Certificates may be sold together with or separately from such  CitiCertificates
or  may  be  retained,  in  whole  or in  part,  by the  Issuer  or the  related
Originators and will represent the right to receive  distributions  as specified
in the related Prospectus  Supplement.  In addition,  at such time as the Stated
Amount of each Class of  CitiCertificates  of such  Series  has been  reduced to
zero, the holders of the Residual  Certificates  will be the sole owners of each
Pool and will  have sole  rights  with  respect  to the  Mortgage  Certificates,
Mortgage  Loans and other assets  included in such Pool,  including the right to
liquidate such Pool.

THE SERVICER

     For each Series of  Certificates,  the Issuer will act as servicer (in such
capacity,   the  "Servicer"  or  "servicer")  with  respect  to  Mortgage  Loans
purchased,  directly or indirectly,  by the Trust from CMI,  Citibank or CFSB or
their  affiliates (the  "Affiliated  Originators"  and such Mortgage Loans being
herein referred to as "Affiliated  Mortgage  Loans") and, as master servicer (in
such  capacity,  the "Servicer" or "master  servicer")  with respect to Mortgage
Loans  purchased,  directly or indirectly,  by the Trust (a) from CitiMae or its
affiliates who purchased such mortgage loans from  seller-servicers  approved by
CitiMae or from such seller-servicers  ("CitiMae  Originators" and such Mortgage
Loans being herein referred to as "CitiMae Mortgage  Loans"),  or (b) from Third
Party  Originators,  and will  perform such  functions  as are  described in the
Pooling  Agreement.  The Issuer may delegate any of its duties under the Pooling
Agreement to any corporation, including a corporation more than 50% of the stock
of which is  owned,  directly  or  indirectly,  by  Citicorp.  Unless  otherwise
disclosed  in the  related  Prospectus  Supplement,  if the  Mortgage  Loans are
included  directly in the Pool, the Issuer intends to subcontract  its duties as
servicer with respect to the Affiliated Mortgage Loans to CMI (or its designated
subservicer)  and its duties as master  servicer (a) with respect to the CitiMae
Mortgage Loans, to CitiMae and (b) with respect to Mortgage Loans  originated by
Third  Party   Originators   ("Third  Party  Loans")  and  sold  by  them  on  a
servicing-retained basis, to a designated master servicer to be determined. Such
delegation  does not relieve the Issuer of its  responsibility  with  respect to
such  duties.  The Trustee may remove the servicer for failure to perform any of
its duties under the Pooling Agreement if such failure continues  unremedied for
60 days after  written  notice from the Trustee.  The Issuer may not resign from
its obligations and duties as servicer under the Pooling  Agreement  except upon
the determination,  evidenced by an opinion of counsel,  that its performance of
such duties is no longer  permissible  under applicable law, or with the consent
of the Trustee and of the holders of 66 2/3% of  outstanding  Certificates.  The
servicer will be entitled to servicing compensation for each Series as specified
in the related Prospectus  Supplement,  which may include (i) a fee payable from
the Certificate  Account (a "REMIC Servicing  Fee"),  (ii) if Mortgage Loans are
included  directly  in  the  Pool,  a  specified  servicing  rate  equal  to the
difference   between  the  Note  Rate  for  each  such  Mortgage  Loan  and  its
Pass-Through   Rate,  as  well  as  late  payment   charges,   assumption  fees,
reinvestment  income, if any, and other similar amounts set forth in the related
Pooling  Agreement  and/or (iii) in the case of the CitiMae  Mortgage  Loans and
Third Party Loans acquired on a


                                       13
<PAGE>

servicing-retained basis, a master servicing fee ("Servicing Compensation").  To
the  extent  specified  with  respect  to a  Series  in the  related  Prospectus
Supplement,  Servicing  Compensation  may be divided between  "normal  servicing
compensation"  and  "additional  servicing  compensation."  In the  case  of the
CitiMae  Mortgage Loans and Third Party Loans  acquired on a  servicing-retained
basis,  a fee may also be paid to  third  party  subservicers  or  servicers  (a
"Servicing  Fee"). The Pooling  Agreement  generally  provides that the servicer
shall not be subject to any liability to holders of  Certificates  other than by
reason  of its  willful  misfeasance,  bad  faith  or  gross  negligence  in the
performance of its duties set forth in the Pooling  Agreement.  See "The Pooling
Agreements."

                                   THE POOLS

GENERAL

     Each Pool will consist of (i) Mortgage Loans and/or  Mortgage  Certificates
or other  "regular  interests"  in another  Pool to the extent  specified in the
related Prospectus Supplement,  (ii) the amount of any assets including cash, if
any, initially deposited in the Certificate Account,  (iii) amounts deposited in
any Reserve Fund described in the Prospectus  Supplement,  (iv) distributions on
such  Mortgage   Certificates  and/or  Mortgage  Loans  (net  of  any  servicing
compensation)  (v) any real  estate  acquired  through  foreclosure  or  similar
proceeding and (vi) reinvestment earnings, if any, on such net distributions and
deposits.  Any Pool including  Mortgage Loans among its assets will also include
the  interest  of the  Certificateholders  in  certain  credit  support  and any
insurance  policies with respect to such Mortgage Loans. Pools for Series having
monthly  distributions  are  generally  expected  not  to  receive  reinvestment
earnings on distributions that are held in the Certificate Account. The Mortgage
Certificates will be held by the Trustee or its nominee,  and any Mortgage Loans
included in any Pool will be held for the Trustee by a custodian, solely for the
benefit of the related Series of Certificates.

     The following  summaries of  characteristics  of the Mortgage Loans and the
CitiMortgageCertificates  are subject to and  qualified by reference to Appendix
A: "The Mortgage Loans and CitiMortgageCertificates."

MORTGAGE LOANS

     The   Mortgage   Loans   included   directly   in  a  Pool  or   underlying
CitiMortgageCertificates in a Pool will be mortgage loans secured by first liens
on  one-  to  four-family  residential  properties,  and  may be  fixed  rate or
adjustable rate loans, or participations  or other beneficial  interests in such
loans,  which may  provide for full  amortization  of  principal,  deferral of a
portion  of  interest,   balloon  payments  of  principal  or  have  such  other
characteristics  as set forth in the related Prospectus  Supplement.  Properties
securing  Mortgage  Loans  may  include   leasehold   interests  in  residential
properties,  the title to which is held by third  party  lessors.  The  Mortgage
Loans may also contain cooperative apartment loans evidenced by promissory notes
secured  by  security  interests  in  shares  issued  by  private,   non-profit,
cooperative  housing  corporations  and in the  related  proprietary  leases  or
occupancy  agreements  granting  exclusive rights to occupy  specified  dwelling
units in such cooperatives'  buildings.  Each Mortgage Loan will be selected and
purchased by the Issuer for  inclusion in the related  Pool, or will be selected
by the Originator in connection with the issuance of a  CitiMortgageCertificate,
from among those  originated or acquired by an Originator in the ordinary course
of business  activities  of the  Originator  or acquired from an affiliate of an
Originator  or from a Third Party  Originator.  Mortgage  Loans in a Pool may be
covered by a guaranty or certain  other  credit  support,  as  described  in the
related Prospectus Supplement.

     The Mortgage Loans will have original  individual  principal balances of no
more  than  $2,500,000  and,  except  as  otherwise  set  forth  in the  related
Prospectus  Supplement,  original  maturities of from 10 to 30 years. Fixed rate
Mortgage Loans will be of a type specified in Appendix A.

     Adjustable  rate Mortgage  Loans will bear interest at a rate which will be
adjusted  from time to time to equal (to the  nearest  eighth  of a  percent)  a
certain  number of basis  points over an index  interest  rate,  as specified in
Appendix A or the related Prospectus  Supplement.  Adjustments may be subject to
limits on the magnitude of any one  adjustment and on the magnitude of aggregate
upward  adjustments  during  the  life of the  Mortgage  Loan.  Adjustable  rate
Mortgage  Loans may provide for  deferral of a certain  portion of interest  and
increases  to the  principal  balances in order to limit the amount by which the
scheduled  monthly  payments will increase  following an increase in the rate of
interest. The amount of the difference between the scheduled monthly payment and
the  monthly  interest  accrued  at the  Mortgage  Rate is added  to the  unpaid
principal  balance  of the  Mortgage  Loan and  interest  accrues  on such added

                                       14
<PAGE>

principal at the  then-applicable  Mortgage Rate from the date of such addition.
Such  an  adjustment  is  referred  to  as  "negative  amortization".   Negative
amortization  tends to lengthen the weighted  average life of the Mortgage Loans
and may cause  payments near the maturity of the Mortgage Loan to be larger than
the previously  scheduled monthly payments unless the terms of the Mortgage Loan
permit its maturity to be extended. The impact of any such negative amortization
on Certificateholders will be set forth in the Prospectus Supplement.

     If specified in the related Prospectus Supplement, adjustable rate Mortgage
Loans  included in a Pool may convert at some future time to fixed rate mortgage
loans.  The details of such conversion  features and the effect on the Pool will
be described in the related Prospectus Supplement.

     At the  Cut-Off  Date for a Pool that  includes  adjustable  rate  Mortgage
Loans,  the Pool may  contain  adjustable  rate  Mortgage  Loans which are newly
originated  and  adjustable  rate  Mortgage  Loans  as  to  which  one  or  more
adjustments  have  occurred.  Adjustable  rate Mortgage  Loans that have not had
their first rate adjustment will generally bear interest at rates that are lower
than the rate that would  otherwise  be  produced  by the sum of the  applicable
index and the  number  of basis  points  over such  index  used to  compute  the
applicable mortgage rate for such Mortgage Loan.

     If provided for in the applicable Prospectus Supplement, the Mortgage Loans
in a Pool or the Mortgage Loans underlying  CitiMortgageCertificates included in
a Pool may be subject to temporary  buydown  plans  ("Buydown  Mortgage  Loans")
pursuant to which the monthly  payments made by the  Mortgagor  during the early
years of the  Buydown  Mortgage  Loan  will be less than the  scheduled  monthly
payments on the Buydown  Mortgage Loan,  the resulting  difference to be made up
from buydown funds contributed by the Mortgagor,  the Mortgagor's employer,  the
seller or the builder of the related Mortgaged Property or another source (i) at
the time of origination of the Buydown  Mortgage Loan or (ii) in some cases when
buydown  funds  are  contributed  by an  employer,  on an annual  basis.  Unless
otherwise  specified  in the  applicable  Prospectus  Supplement  and except for
Buydown  Mortgage Loans funded in accordance with clause (ii) above, the buydown
funds will be placed on the Closing  Date (as defined in the related  Prospectus
Supplement) in an account  established  and maintained  with a depository by the
Issuer or the Originator  (or in the case of CitiMae  Mortgage  Loans,  with the
related  subservicer),  and amounts will be withdrawn  monthly from such account
promptly  following receipt of the Mortgagor's  monthly payment and deposited in
the related Certificate Account. See "Description Of Certificates--Distributions
to Certificateholders."  Buydown funds with respect to any Series may be held in
the same  deposit  account  as  buydown  funds for all  buydown  mortgage  loans
serviced  by the  Issuer,  the  Originator  or any  subservicer.  In the case of
buydown funds contributed on an annual basis by the Mortgagor's  employer,  such
buydown loans will generally have a buydown period of three years but may have a
buydown  period of up to five years.  The employer may or may not be required to
guarantee  the  payment of buydown  funds even if the  Mortgagor  were no longer
employed by such employer.

     Unless  otherwise  specified  in the  related  Prospectus  Supplement,  the
original principal amount of each Mortgage Loan will be not more than 90% of the
Original  Value of the property  securing such Mortgage  Loan.  Each  Affiliated
Mortgage Loan having an original  principal amount exceeding 90% of the Original
Value of the Mortgaged  Property will be covered by primary  mortgage  insurance
against  losses from default on such Mortgage Loan in an amount ranging from 12%
to 30% of the  principal  amount of the Mortgage Loan  outstanding  from time to
time.  Such insurance  will be in effect at least until the principal  amount of
the Mortgage Loan is reduced to 80% of its Original Value. Each CitiMae Mortgage
Loan having an  original  balance  exceeding  80% of the  Original  Value of the
Mortgaged  Property will be covered by primary mortgage insurance against losses
from default on such mortgage  loan in an amount  ranging from 12% to 30% of the
principal amount of the Mortgage Loan outstanding from time to time. Third Party
Loans will be covered by primary  mortgage  insurance to the extent specified in
the  related  Prospectus  Supplement.  See  "Loan  Underwriting   Policies--Loan
Underwriting  Policies of the Affiliated  Originators" and "--Loan  Underwriting
Policies of the CitiMae Originators."

     The  properties  securing  Mortgage  Loans may consist of detached  houses,
attached  houses,  row houses,  individual  units in planned unit  developments,
individual  condominiums  or other types of one- to  four-family  residences  or
interests in cooperatives (as defined in Appendix A). Although it is anticipated
that such properties will be predominantly primary residences,  they may include
investment properties and vacation and second homes as well. Such properties may
be located in any of the fifty  United  States,  the District of Columbia or the
Commonwealth of Puerto Rico.

     When the related  Series of  Certificates  is issued the Issuer will assign
the  Mortgage  Loans  without  recourse  to the  Trustee  for the benefit of the
Certificateholders.  The Issuer will,  however,  be required to  repurchase  any
Mortgage 


                                       15
<PAGE>

Loans or  Mortgage  Certificates  that do not  conform  in one or more  material
respects  to  the  representations  and  warranties  in  the  Pooling  Agreement
("Non-Conforming Loans") within 180 days after notice from the Trustee that they
are Non-Conforming Loans. The Issuer may substitute conforming Mortgage Loans or
Mortgage  Certificates for Non-Conforming Loans on or before the day that is 180
days  following  the Startup Day of the REMIC with respect to such  Series.  If,
however, any Non-Conforming Loan would affect the status of the REMIC or subject
the  REMIC to tax,  the  Issuer  must  repurchase  such  Non-Conforming  Loan or
substitute a conforming  Mortgage  Loan  therefor  within the earlier of 90 days
after notice from the Trustee that the Mortgage Loan is a Non-Conforming Loan or
180 days  following  the Startup Day.  See  "--Substitution  of Mortgage  Loans"
below.  The Startup Day  generally  will be the Closing  Date (as defined in the
related  Prospectus  Supplement).  As servicer,  the Issuer is  responsible  for
administering and servicing the Mortgage Loans and Mortgage Certificates.

     In connection  with  assignment of the Mortgage  Loans to the Trustee,  the
Issuer will deliver to the Trustee (or a custodian  acting on its behalf,  which
may be an affiliate of the Issuer) the Mortgage Note, the Mortgage with evidence
of recording thereon,  any other mortgage related documents,  and assignments of
the Mortgage by the Originator to the Trustee.  Such  assignments will generally
be recorded  after the Closing  Date.  See Appendix A: "The  Mortgage  Loans and
CitiMortgageCertificates--Assignment of Mortgage Loans."

MORTGAGE CERTIFICATES

  CitiMortgageCertificates

     This  summary of  CitiMortgageCertificates  is subject to and  qualified by
reference to Appendix A: "The Mortgage Loans and CitiMortgageCertificates."

     Certificates  evidencing  fractional  undivided interests in trusts will be
created by each of the Originators with respect to which an election may be made
to treat such trusts as REMICs under the Code.  The property of such REMICs will
consist  of  pools  of  Mortgage  Loans  originated  or  acquired  by one of the
Affiliated Originators or acquired by the Issuer. Such certificates will consist
of one or more classes of regular interests and one class of residual interests.
It is  expected  that  the  issuer  of any  CitiMortgageCertificate  will be the
packager of the Mortgage Loans underlying such  CitiMortgageCertificate and will
act as the servicer or master  servicer (in such  capacity,  the  "Servicer"  or
"servicer") of such Mortgage Loans (or will subcontract with an affiliate to act
as  subservicer).  The Mortgage  Loans may be covered by certain  credit support
described in the Prospectus Supplement.

     The  form  of  pooling  and  servicing  agreement  pursuant  to  which  the
CitiMortgageCertificates  will be issued will be  substantially  the same as the
Pooling  Agreement  with  respect  to a Pool in which the  Mortgage  Loans  were
originated or acquired by an Affiliated Originator.  The terms and provisions of
the relevant  Pooling  Agreement  described in this  Prospectus  (including  the
descriptions    of     distributions)     would    be    applicable    to    any
CitiMortgageCertificate  except  that  references  to the Issuer  will be deemed
references to the relevant Affiliated Originator and references to the Pool will
be deemed references to the Citibank Pool, the CMI Pool or the CFSB Pool, as the
case may be.

     The pool underlying a CitiMortgageCertificate  will consist of the Mortgage
Loans, such funds as from time to time are deposited in the Certificate  Account
for such  CitiMortgageCertificate,  property  acquired by foreclosure or deed in
lieu of foreclosure of a Mortgage Loan or Transfer Instrument (as defined below)
as from time to time may be subject to the related Pooling Agreement, any credit
support and any  insurance  policies  with  respect to the Mortgage  Loans.  For
purposes of this Prospectus,  a "Transfer  Instrument" is a deed transferring an
interest in property subject to a Mortgage or any assignment or other instrument
of  transfer  transferring  an  interest in  collateral  (including  shares of a
cooperative and the related occupancy agreement or proprietary lease) securing a
Mortgage  Loan.  Any default by any insurer  under any such policy,  any loss in
excess of policy limits or any uninsured loss may adversely affect distributions
on the  CitiMortgageCertificates  to the  Trustee  for  the  related  Series  of
Certificates,  and may thus adversely affect  distributions on such Certificates
to the  Certificateholders.  Each  Pooling  Agreement  with  respect to the same
Originator will contain substantially the same terms and conditions,  except for
the Pass-Through Rate or Stated Rate (as defined therein),  the date of issuance
of such  series,  the  aggregate  initial  Adjusted  Balance of  Mortgage  Loans
evidenced by such series, the minimum fractional  undivided interest represented
by each  CitiMortgageCertificate,  the identity and address of the Trustee,  the
amount of the  credit  support  and other  minor  variations.  Pursuant  to each
Pooling   Agreement,   the  Servicer  will  be  responsible  for  servicing  and
administering  the related  Mortgage Loans,  but may at any time subcontract its
duties as servicer  under any Pooling  Agreement  to any  


                                       16
<PAGE>

entity,  including  an  entity  more  than 50% of the  stock of which is  owned,
directly or indirectly,  by Citicorp. With respect to Mortgage Loans acquired by
the  Trust  from  Citibank  or  CFSB,  each of  Citibank  and  CFSB  intends  to
subcontract  its duties as servicer under each Pooling  Agreement under which it
acts  as  servicer  to CMI.  CitiMortgageCertificates  contained  in a Pool  may
represent all or some of the regular  interests in a REMIC.  It is expected that
CitiMortgageCertificates will be issued pursuant to participation or pooling and
servicing  agreements  entered into from time to time between the related seller
and the related certificate trustee or custodian.  In addition,  an affiliate of
such seller or of the Issuer may be a servicer for such pool of mortgage  loans.
The mortgage loans underlying the CitiMortgageCertificates may be subserviced by
one or more loan servicing institutions under the supervision of the servicer.

     It is  expected  that all  collections  received  by the  servicers  on the
mortgage  loans (net of servicing  fees to be retained by the servicers and such
other  amounts  as may  be  specified  in  the  related  pooling  and  servicing
agreement) will be deposited with the certificate trustee. Monthly distributions
of the principal and interest  components of such  collections  (adjusted to the
stated  rate  or  pass-through   rate  (as  the  case  may  be)  borne  by  such
CitiMortgageCertificate)    will   be   made    to   the    Trustee    for   the
CitiMortgageCertificates  of the related Series for deposit into the Certificate
Account for such Series.

     The  Issuer  will  provide to any  Certificateholder,  without  charge,  on
written  request,  a copy  (without  exhibits) of the Pooling  Agreement for any
series  of  CitiMortgageCertificates  included  in a Pool.  Requests  should  be
addressed to: Citicorp Mortgage  Securities,  Inc., 909 Third Avenue,  New York,
New York 10043.

     Distributions    of   principal    and   interest   on   each   series   of
CitiMortgageCertificates  will be made by the  Trustee or a paying  agent on the
25th day (or if such 25th day is not a business  day, no later than the business
day immediately following the 25th day) of each calendar month to the Trustee as
the person in whose name such  CitiMortgageCertificates  are  registered  at the
close of business on the last  business day of the  preceding  month.  The first
such  distribution  date for each  series  of  CitiMortgageCertificates  will be
specified in the applicable Prospectus  Supplement.  The Pool may also contain a
certificate  evidencing an undivided  interest in a trust  comprised of Mortgage
Loans as to which  trust  an  election  has not  been  made to treat  the  trust
property  as a REMIC.  The  terms and  provisions  of such  certificate  and any
Pooling  Agreement  pursuant to which any such certificate is issued will be set
forth in the related Prospectus Supplement.

  Issuer Certificates

     This  summary  of  Issuer  Certificates  is  subject  to and  qualified  by
reference to Appendix A: "The Mortgage Loans and CitiMortgageCertificates."

     The Pool with respect to any Series of Issuer  Certificates  may consist in
whole or in part of Issuer  Certificates  initially  issued to the public by the
Issuer or an affiliate of the Issuer,  and which  represent  all or a portion of
the regular  interests in a pool of mortgage loans originated or acquired by one
or more of the  Affiliated  Originators  or  acquired  by the Issuer  ("Whole or
Partial Pool Issuer  Certificates").  Whole or Partial Pool Issuer  Certificates
included  in a Pool may  represent  all or a portion  of one or more  classes or
subclasses of one or more series of previously issued Issuer Certificates.

     Each  Whole or  Partial  Pool  Issuer  Certificate  will have  been  issued
pursuant to a pooling and servicing agreement between the related issuer,  which
is expected to be the Issuer,  one or more Originators  and/or affiliates of the
Issuer,  and the trustee for such series of  CitiCertificates  (the  "Underlying
Trustee"). Unless otherwise specified in the Prospectus Supplement, the terms of
such pooling  agreement will generally  conform to those provided in the Pooling
Agreement  with  respect  to such  Series  of  Certificates.  See  "The  Pooling
Agreements."

     Certain of the mortgage loans  underlying a series of Whole or Partial Pool
Issuer  Certificates  may be  covered  by (i)  individual  policies  of  primary
mortgage  insurance  insuring against all or a portion of any foreclosure losses
on the particular mortgage loans covered thereby, (ii) subordination or guaranty
arrangements  and/or (iii) such other  policies of insurance  and other forms of
credit support (including, without limitation, obligations to advance delinquent
payments)  as may be  specified  in the related  Prospectus  Supplement.  Unless
otherwise  provided in the related  Prospectus  Supplement,  no Whole or Partial
Pool Issuer Certificate will be so insured or guaranteed.

     Unless  otherwise  provided in the  related  Prospectus  Supplement,  it is
expected that all collections received by servicers with respect to the mortgage
loans underlying each series of Whole or Partial Pool Issuer  Certificates  (net
of servicing fees to be retained by such servicers and such other amounts as may
be specified in the related pooling and 


                                       17
<PAGE>


servicing  agreement),  including  monthly  distributions  of the  principal and
interest  components  of  such  collections  (adjusted  to the  stated  rate  or
pass-through  rate (as the case may be)  borne  by such  Whole or  Partial  Pool
Issuer  Certificate)  will be  distributed  directly to the  related  Underlying
Trustee.

     The Prospectus  Supplement will specify,  to the extent relevant and to the
extent such  information  is  reasonably  available to the Issuer and the Issuer
reasonably  believes  such  information  to  be  reliable,   (i)  the  aggregate
approximate  principal  amount  and type of each class or  subclass  of Whole or
Partial  Pool  Issuer  Certificates  to be included  in the Pool;  (ii)  certain
characteristics  of the mortgage loans which comprise the underlying  assets for
each  Whole  or  Partial  Pool  Issuer  Certificate,  on a pool by  pool  basis,
including (a) the  aggregate  Adjusted  Balance of such  mortgage  loans and the
years of origination  thereof, (b) if Converted Mortgage Loans with an aggregate
Adjusted Balance exceeding 10% of the aggregate Adjusted Balance of all mortgage
loans in any pool  underlying  a Whole or Partial Pool Issuer  Certificate  were
delivered,  the aggregate Adjusted Balance of any such Converted Mortgage Loans,
(c) the original  loan-to-value  ratios of the mortgage loans of each such pool,
(d) the types of  Mortgaged  Properties  securing the  mortgage  loans,  (e) the
geographic   distribution   of  the   Mortgaged   Properties,   prepared   on  a
state-by-state  basis for  states  where  mortgage  loans  having  an  aggregate
Adjusted  Balance  exceeding 10% of the aggregate  Adjusted  Balance of mortgage
loans in the related Pool are  located,  (f) if Buydown  Mortgage  Loans with an
aggregate  Adjusted Balance  exceeding 10% of the aggregate  Adjusted Balance of
all mortgage loans in the related Pool were  delivered,  the aggregate  Adjusted
Balance  of  Buydown  Mortgage  Loans  in the  related  Pool,  (g) if  loans  on
residential leasehold properties  ("Leasehold Loans") with an aggregate Adjusted
Balance exceeding 10% of the aggregate Adjusted Balance of all mortgage loans in
the related Pool were  delivered,  the aggregate  Adjusted  Balance of Leasehold
Loans in the related Pool and (h) if 15-year, fixed rate tiered-payment mortgage
loans  originated by CFSB's  California  branches and providing for a prepayment
penalty  during  the first 12 months  following  origination  with an  aggregate
Adjusted Balance exceeding 10% of the aggregate Adjusted Balance of all mortgage
loans in the related Pool were delivered, the aggregate Adjusted Balance of such
mortgage loans in the related Pool;  (iii) the maximum  original  term-to-stated
maturity  of each  series of Whole or Partial  Pool  CitiCertificates;  (iv) the
weighted average term-to-stated maturity of each series of Whole or Partial Pool
Issuer  Certificates;  (v) the  pass-through  rate for each class or subclass of
Whole  or  Partial  Pool  Issuer   Certificates;   (vi)  the  weighted   average
pass-through  rate of each Whole or Partial Pool Issuer  Certificate;  (vii) the
servicer of the  mortgage  loans  underlying  each Whole or Partial  Pool Issuer
Certificate  and the  Underlying  Trustee  with respect to each Whole or Partial
Pool Issuer Certificate;  (viii) certain  characteristics or credit enhancement,
if any,  such as  reserve  funds,  insurance  policies,  letters  of  credit  or
guarantees, relating to the mortgage loans underlying each Whole or Partial Pool
Issuer  Certificate;  (ix) the terms on which underlying mortgage loans for each
Whole or Partial Pool Issuer Certificate 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 each  Underlying
Trustee.

     More  specific  information  concerning  each Whole or Partial  Pool Issuer
Certificate,  the mortgage loans  underlying each such Issuer  Certificate,  and
related  servicing,   insurance,   subordination  and/or  other  credit  support
arrangements, if any, will be set forth in the related Prospectus Supplement.

  Agency Certificates

     This  summary  of  Agency  Certificates  is  subject  to and  qualified  by
reference to Appendix B: "The Agency Certificates."

     The  Issuer  may  acquire  for  any  Pool   "fully-modified   pass-through"
mortgage-backed certificates ("GNMA Certificates") issued by private issuers and
guaranteed by the Government National Mortgage  Association  ("GNMA"),  Mortgage
Participation Certificates ("FHLMC Certificates") guaranteed by the Federal Home
Loan  Mortgage  Corporation  ("FHLMC")  and Mortgage  Pass-Through  Certificates
("FNMA Certificates") guaranteed by Fannie Mae ("FNMA").

     GNMA is a wholly-owned  corporate  instrumentality within the United States
Department of Housing and Urban Development. GNMA is authorized to guarantee the
timely  payment of the  principal  of and interest on GNMA  Certificates,  which
guarantee  is backed by the full  faith and  credit of the  United  States.  Any
issuer which is unable to make payments on such GNMA Certificates as they become
due is required to promptly notify GNMA and request  payment by GNMA,  whereupon
GNMA will make such payment directly to the holders of such GNMA Certificates.

     FNMA is a federally  chartered and privately  owned  corporation  organized
under the Federal National Mortgage Association Charter Act. FNMA purchases home
mortgage  loans  with  funds  acquired  in part from the sale of its


                                       18
<PAGE>

Guaranteed  Mortgage  Pass-Through  Certificates.  FNMA  guarantees that it will
distribute  to holders of FNMA  Certificates  their  proportionate  interests in
passed-through  payments of principal of and  interest on the  underlying  loans
(including principal prepayments).

     FHLMC is a corporate  instrumentality of the United States created pursuant
to Title III of the  Emergency  Home  Finance  Act of 1970,  as  amended.  FHLMC
purchases mortgage loans and participation interests in mortgage loans that meet
certain statutory standards, and resells them in the form of FHLMC Certificates.
FHLMC guarantees that it will distribute to holders of FHLMC  Certificates their
proportionate  interests in passed-through payments of principal of and interest
on the underlying loans.

     The  guaranties of FNMA and FHLMC are backed only by the credit of FNMA and
FHLMC,  respectively.  The full  faith and  credit of the  United  States is not
pledged to payments  that may be  required  under such  guaranties.  Neither the
United  States nor any agency  thereof is required to finance  FNMA's or FHLMC's
operations or to assist FNMA or FHLMC in any manner.

CERTIFICATE ACCOUNT

     The Trustee will, as to each Series of Certificates, establish and maintain
a separate  account or  accounts,  including  any such account  maintained  by a
paying agent (collectively,  the "Certificate Account"),  for the benefit of the
Certificateholders.  The  Certificate  Account  may bear  interest.  Except with
respect to the CitiMae  Mortgage  Loans and the Third Party Loans  acquired on a
servicing-retained  basis,  all payments (net of servicing fees) on the Mortgage
Loans or Mortgage  Certificates will be deposited  directly into the Certificate
Account as soon as practicable  after receipt thereof but in any case within two
business days of receipt and posting.  The Pooling Agreement for each Series may
authorize  the  Trustee  to  invest  at the  Issuer's  discretion  distributions
received on the assets in a Pool  (including  Voluntary  Advances  and  payments
under the credit support) in certain investments  ("Eligible  Investments") that
will qualify as "permitted investments" under Code Section 860G(a)(5).  Eligible
Investments may be made by the Trustee upon instructions from the Issuer and, if
made,  will  generally  mature  not  later  than  the  day  preceding  the  next
Distribution  Date for such Series (or on such  Distribution Date in the case of
Eligible  Investments  which  are  the  obligations  of the  Trustee).  Eligible
Investments include,  among other investments,  obligations of the United States
or of any agency thereof,  certificates of deposit, federal funds, time deposits
and bankers' acceptances sold by eligible commercial banks (including affiliates
of the Issuer such as Citibank), any other demand or time deposit or certificate
of deposit  fully  insured by the Federal  Deposit  Insurance  Corporation  (the
"FDIC")  either  through  the Bank  Insurance  Fund (the  "BIF") or the  Savings
Association  Insurance Fund (the "SAIF"),  commercial paper carrying the ratings
specified  in the related  Pooling  Agreement of each Rating  Agency  rating the
Certificates  of such  Series  that has rated  such  commercial  paper,  certain
repurchase  agreements  of United  States  government  securities  with eligible
commercial banks and certain guaranteed investment contracts.

     Unless  otherwise  set  forth in the  related  Prospectus  Supplement,  all
payments  on  Mortgage  Loans  and  Mortgage  Certificates,  together  with  any
reinvestment  income thereon and any amounts withdrawn from any Reserve Fund for
such Series and deposited into the Certificate  Account for such Series, will be
available to make  distributions  on the Certificates of such Series on the next
succeeding  Distribution Date or Special  Distribution Date for such Series. Any
funds remaining in the Certificate Account immediately  following a Distribution
Date  (other  than  amounts  representing  early  payments  of  installments  of
principal and interest on Mortgage Loans directly held in the Pool which are due
on future Due Dates or Principal  Prepayments)  will be promptly  distributed to
the holders of the Residual Certificates.

     In the case of Mortgage Loans  participating in a "prepayment  program" (as
described   in   Appendix   A:   "The    Mortgage    Loans   and    CitiMortgage
Certificates--Payments  on Mortgage Loans in Pools"),  payments on such Mortgage
Loans  received  under such a program  will not be remitted  to the  Certificate
Account until released for payment under the terms of such program.

MINIMUM PREPAYMENT AGREEMENT

     The Issuer may enter into an agreement (a "Minimum  Prepayment  Agreement")
with an institution meeting the criteria of the Rating Agency rating the related
Series  to  enable  the  Trustee  to  make  distributions  of  principal  on the
Certificates  of such  Series in  accordance  with a  schedule  set forth in the
related  Prospectus  Supplement.  Funds  would be  provided  under  the  Minimum
Prepayment  Agreement in the event that aggregate  scheduled  principal payments

                                       19
<PAGE>


and prepayments on the Mortgage Loans and/or Mortgage  Certificates  included in
the related Pool were not sufficient to make  distributions  in reduction of the
Stated Amount of such  Certificates in accordance  with such Minimum  Prepayment
Schedule.  Such Minimum  Prepayment  Agreement may obligate the  institution  to
purchase,  from  time to  time,  Mortgage  Loans  and/or  Mortgage  Certificates
included in the Pool pursuant to a selection process set forth in such agreement
for an amount specified in the related Prospectus Supplement.

     The related Prospectus Supplement will describe the terms and conditions of
any Minimum Prepayment  Agreement if a Minimum  Prepayment  Agreement is to be a
part of the Pool.

MINIMUM REINVESTMENT AGREEMENT

     The Issuer may enter into an agreement (a "Minimum Reinvestment Agreement")
with an institution meeting the criteria of the Rating Agency rating the related
Series.  Amounts  required to be  deposited in any account or fund for a related
Series will be invested  pursuant to such agreement.  If a Minimum  Reinvestment
Agreement is entered into with respect to a Series of Certificates, reinvestment
earnings on funds in the Certificate  Account will not belong to the Servicer as
additional servicing compensation but will be available to make distributions on
the Certificates in accordance with their terms.  The applicable  interest rates
for funds  invested  under  such  agreement  will be  described  in the  related
Prospectus Supplement if a Minimum Reinvestment Agreement is to be a part of the
Pool.

COLLECTION OF PAYMENTS

     The Mortgage  Certificates  included in a Pool for a Series of Certificates
will be  registered in the name of the Trustee or its nominee or, in the case of
Mortgage  Certificates  issued  only in  book-entry  form,  with a member of the
Federal Reserve System, so that in each case all  distributions  thereon will be
made directly to such  Trustee.  The Mortgage  Loans  included in a Pool will be
assigned to the Trustee and the related Mortgage Notes,  endorsed to the Trustee
or in blank,  will be delivered to the Trustee or its custodian.  The obligation
of such  Trustee to make  distributions  on the  Certificates  is limited to the
amount of payments (net of servicing  compensation) on the Mortgage Certificates
and Mortgage  Loans that were  actually  received by it unless the Issuer enters
into a Minimum  Prepayment  Agreement.  The Trustee  may not  assign,  transfer,
pledge or dispose  of any assets in the  Certificate  Account  for such  Series,
except to a successor  Trustee with  respect to such Series,  the holders of the
Residual  Certificates or the holders of CitiCertificates for such Series as set
forth in the  Pooling  Agreement  and  except as  permitted  under  the  Pooling
Agreement in connection with  foreclosures  and other  realizations on defaulted
Mortgage Loans. See "--Substitution of Mortgage Loans" below.

SUBSTITUTION OF MORTGAGE LOANS

     Subject to the limitations set forth in the Pooling  Agreement,  the Issuer
may,  on any day prior to 180 days  after  the  settlement  date of the  related
Series of  Certificates  (the "Startup  Day") (or, if such day is not a Business
Day, on the next previous Business Day) (or 90 days after discovery, if earlier,
if the defect affects the status of the Mortgage Loan as a "qualified  mortgage"
for  REMIC  purposes),  but  solely  in lieu of any  obligation  it may  have to
repurchase a Non-Conforming Loan, deliver to the Trustee other Mortgage Loans in
substitution  for any one or more Mortgage  Loans included in the Pool. Any such
substitute  Mortgage Loan will be fully paid up on the substitution day and will
have a principal  balance on the  substitution day that is at least equal to the
principal balance on the substitution day of the Non-Conforming  Loans for which
it is  substituted,  an  interest  rate  equal to or  greater  than that of such
Non-Conforming  Loans,  an  original  term  to  maturity  equal  to that of such
Non-Conforming Loans and a maturity date not earlier than one year prior to, and
in no event later than,  that of such  Non-Conforming  Loans.  Substitutions  of
Mortgage Loans and/or  Mortgage  Certificates  will be permitted in the event of
breaches of representation  and warranties with respect to any original Mortgage
Loan and/or Mortgage  Certificate or in the event the documentation with respect
to any Mortgage Loan is determined by the Trustee to be  incomplete.  The period
during which such substitution  will be permitted  generally will not exceed two
years for pools from the date the related Series is issued.

     The related  Prospectus  Supplement will describe any other conditions upon
which  Mortgage  Loans  and/or  Mortgage  Certificates  may be  substituted  for
Mortgage Loans and/or Mortgage Certificates initially included in the Pool.


                                       20
<PAGE>

                       CITICORP MORTGAGE SECURITIES, INC.

     The Issuer was  incorporated in the State of Delaware on March 17, 1987 and
is an indirect wholly owned subsidiary of Citicorp.  It is not expected that the
Issuer will have any business  operations  other than offering  Certificates and
related activities.

     The  principal  executive  offices of the  Issuer are  located at 909 Third
Avenue, New York, New York 10043. Its telephone number is (212) 559-6727.

                                 THE ORIGINATORS

CITICORP MORTGAGE, INC.

     CMI is an indirect  wholly owned mortgage  banking  subsidiary of Citicorp.
CMI, with headquarters in St. Louis,  Missouri,  was incorporated under the laws
of the State of Delaware on September  24, 1979.  Since its  formation,  CMI has
engaged in mortgage banking and other housing-related financing activities,  and
in July 1980, CMI commenced  making mortgage loans. CMI derives income primarily
from interest on mortgages  which it owns,  secondary  mortgage market sales and
mortgage loan servicing fees and mortgage origination fees and charges.

     CMI has  been  approved  as a  mortgagee  and  seller/servicer  by  several
agencies and instrumentalities,  including the FHA, the Veterans  Administration
("VA"),  FNMA, GNMA and FHLMC.  CMI's origination  operations are subject to the
operational  guidelines  and  regulations  of, as well as audits by,  certain of
these agencies.

     The principal executive offices of CMI are located at 750 Washington Blvd.,
Stamford, Connecticut 06091. Its telephone number is (800) 285-3000.

CITIBANK, FEDERAL SAVINGS BANK

     Citibank,  Federal Savings Bank ("CFSB") is a federal savings bank with its
executive  offices  in San  Francisco,  California.  It was  formed  in  1982 in
connection with the acquisition of Fidelity  Savings & Loan  Association.  As of
the end of December 31, 1990, Citibank,  Federal Savings Bank (formerly Citicorp
Savings of  Illinois,  A Federal  Savings and Loan  Association)  and  Citibank,
Federal Savings Bank (formerly  Citicorp Savings of Washington,  D.C., A Federal
Savings  and Loan  Association),  both wholly  owned  indirect  subsidiaries  of
Citicorp, were merged into CFSB. As of March 31, 1993, Citibank, Federal Savings
Bank  (formerly  Citicorp  Savings  of  Florida,  A  Federal  Savings  and  Loan
Association),  a wholly owned indirect  subsidiary of Citicorp,  was merged into
CFSB. As of May 1, 1993 CFSB acquired the branches of Citibank (Maryland),  N.A.
and as of January 3, 1994,  CFSB  acquired the  branches of Citibank  (Florida),
N.A.

     The deposits of CFSB are insured by the FDIC to the extent provided by law.
Since 1982, CFSB has been either a direct or an indirect wholly owned subsidiary
of Citicorp.  CFSB has been an active one- to four-family  residential  mortgage
lender since 1983.

     Citibank  Service  Corporation,  an affiliate of CFSB, acts as trustee with
respect to  substantially  all deeds of trust  relating  to  mortgaged  property
located in California  securing  mortgage loans  originated or acquired by CFSB.
Under  California  law, the  functions of a trustee under a deed of trust are to
foreclose upon the mortgaged  property upon notification by the beneficiary of a
delinquency  and to execute  full and partial  reconveyances  of such  mortgaged
property upon direction of the beneficiary.

     The principal  executive  offices of CFSB are located at 1 Sansome  Street,
San Francisco, California 94104. Its telephone number is (415) 627-6000.

CITIBANK, N.A.

     Citibank is a commercial bank offering a wide range of banking  services to
its customers in the New York City metropolitan area and around the world.

     Citibank's  deposits are insured by the FDIC to the extent provided by law.
Since 1968,  Citibank has been a wholly owned  subsidiary of Citicorp.  Citibank
has been an active one- to four-family  residential  real estate mortgage lender
since  1960.  Citibank  has also been an active  cooperative  apartment  lender.
Citibank conducts such lending 


                                       21
<PAGE>

activities through its New York Banking Unit (the "NYBU").  Except in connection
with mortgage pass-through certificates issued by it from time to time, Citibank
has  not  engaged  in  any  significant   servicing   activities  on  behalf  of
unaffiliated  persons  with  respect to  conventional  residential  mortgage  or
cooperative loans.

     The NYBU is responsible  for Citibank's  consumer  banking  business within
that portion of the New York  Metropolitan Area which includes the nine counties
(Westchester,  Nassau,  Suffolk,  Kings, Richmond, New York, Bronx, Rockland and
Queens) within and  surrounding  New York City.  Citibank offers a wide range of
consumer  banking  products and  services,  including  mortgage and  cooperative
apartment loans.

     The principal executive offices of Citibank are located at 399 Park Avenue,
New York, New York 10043. Its telephone number is (212) 559-1000.

CITIMAE, INC.

     CitiMae,  Inc.  ("CitiMae"),  a  Delaware  corporation  and a wholly  owned
subsidiary  of  Citibank,  is  primarily  engaged  in the  purchase  and sale of
mortgage  loans,  the  performance  of  master   servicing   functions  and  the
securitizing of mortgage loans. Its principal  executive  offices are located at
399 Park  Avenue,  New  York,  New York  10043.  Its  telephone  number is (212)
793-5880.

     At March 31, 1996,  CitiMae master  serviced  mortgage  loans, on behalf of
Citibank,  with  principal  balances of  approximately  $4,843,000,000.  CitiMae
enters  into  agreements  with  various  approved   servicers  to  perform,   as
independent  contractors,  certain servicing  functions for Citibank,  as master
servicer.  See "Loan Underwriting  Policies--Loan  Underwriting  Policies of the
CitiMae Originators."

     Set forth below is a description of aspects of CitiMae's  purchase  program
for Mortgage Loans eligible for inclusion in a Pool.

     The Issuer will purchase  Mortgage Loans either directly or indirectly from
CitiMae or its  affiliates or from  approved  sellers which may be affiliates of
the Issuer or CitiMae.  CitiMae or its affiliates has approved (or will approve)
individual  institutions  as  eligible  sellers by  applying  certain  criteria,
including  the  seller's  depth of mortgage  origination  experience,  servicing
experience and financial stability.  From time to time, however,  CitiMae or its
affiliates may purchase Mortgage Loans from sellers which, while not meeting the
generally  applicable  criteria,  have  been  reviewed  by it  and  found  to be
acceptable as sellers of Mortgage Loans.

     Underwriting  standards  are  intended to evaluate the  Mortgagor's  credit
standing  and  repayment  ability and the value and  adequacy  of the  Mortgaged
Property  as  collateral.  Underwriting  standards  are  applied  in a  standard
procedure which complies with applicable federal and state laws and regulations.

     In determining the adequacy of the property as collateral,  an appraisal is
generally  made of each  property  considered  for  financing.  The appraiser is
required to inspect the  property  and verify that it is in good  condition  and
that  construction,  if new, has been  completed.  The appraisal is based on the
appraiser's  judgment of values,  giving  appropriate  weight to both the market
value of comparable homes and the cost of replacing the property.

     See also "Loan  Underwriting  Policies--Loan  Underwriting  Policies of the
CitiMae Originators".

     If CitiMae  Mortgage  Loans are included in a Pool,  the Issuer  intends to
enter into a Subservicing Agreement with CitiMae (the "Subservicer") pursuant to
which the Subservicer  will agree to perform certain  functions for the Servicer
relating  to  the  purchase  of  the  Mortgage   Loans  and  the  servicing  and
administering of the CitiMae Mortgage Loans.  Under the Subservicing  Agreement,
the  Subservicer  will agree,  among  other  things,  to perform the  Servicer's
obligations  with respect to the servicing of the CitiMae Mortgage Loans and the
Servicer's servicing  obligations under the Pooling Agreement which will include
making advances to Certificateholders  under circumstances in which the Servicer
would be obligated to make such advances,  and repurchasing  Mortgage Loans from
the Trustee where the Servicer would be obligated to so repurchase.  Any actions
of the Subservicer taken pursuant to the Subservicing  Agreement will be for the
Servicer  with the same force and  effect as though  performed  directly  by the
Servicer  and  the  Servicer  will  at all  times  remain  responsible  for  the
performance of its duties under the Pooling  Agreement.  The Subservicer will be
paid a fee by the Servicer for its services.

THIRD PARTY ORIGINATORS

     If Third Party Loans having an aggregate  Adjusted Balance exceeding 10% of
the aggregate Adjusted Balance of the Mortgage Loans in a Pool are included in a
Pool,  the  related   Prospectus   Supplement  will  identify  the  Third  Party
Originators of such Third Party Loans.

                                       22
<PAGE>

     Unless otherwise specified in the related Prospectus Supplement, each Third
Party  Originator  will be required to satisfy the  qualifications  set forth in
this paragraph.  Each Third Party Originator must be an institution  experienced
in  originating  mortgage  loans of the type  contained  in the related  Pool in
accordance  with  accepted  practices and prudent  guidelines.  Each Third Party
Originator  must be a savings and loan  association,  savings  bank,  commercial
bank, credit union,  insurance company or a mortgagee  approved by the Secretary
of Housing and Urban Development.

                           LOAN UNDERWRITING POLICIES

LOAN UNDERWRITING POLICIES OF THE AFFILIATED ORIGINATORS

     Except as  specifically  noted below and except as may be  specified in the
applicable  Prospectus  Supplement,   residential  real  estate  mortgage  loans
originated or acquired  from  affiliated  or  unaffiliated  third parties by the
Affiliated Originators are subject to the same underwriting process. For certain
residential  mortgage loans the Affiliated  Originators  have contracted with or
delegated the underwriting  process to certain  unaffiliated third parties.  The
underwriting  process,  which  is  described  below,  assesses  the  prospective
borrower's  ability to repay and the adequacy of the property as collateral  for
the loan requested. The loan underwriting policies of each Affiliated Originator
require such  Originator's  loan  underwriters to be satisfied that the value of
the property being financed currently  supports,  and will likely support in the
future,  the outstanding  loan balance with  sufficient  excess value to protect
against minor adverse shifts in real estate values. In general, it is the policy
of each Affiliated  Originator not to make conventional one- to four-family real
estate loans with more than 95% loan-to-value ratios. Unless otherwise specified
in the related  Prospectus  Supplement,  a Pool will not contain any Real Estate
Loans with more than a 95% loan-to-value ratio.

     Each  Affiliated  Originator's  real  estate  lending  process  for one- to
four-family residential mortgage loans follows a standard procedure, established
to comply with applicable federal and state laws and regulations.  Initially,  a
prospective  borrower is required to fill out an application designed to provide
pertinent  information  about  the  prospective  borrower,  the  property  to be
financed  and the  type  of loan  desired.  As  part of the  description  of the
prospective borrower's financial condition,  each Affiliated Originator requires
a current  balance sheet  describing  assets and  liabilities and a statement of
income and expenses, proof of income such as a paycheck stub or W-2 form (except
for  certain  self-employed  prospective  borrowers),  proof  of  liquid  assets
(required as of April 1991),  telephone  verification of employment (required as
of  April  1991),  which  may be  verified  utilizing  a  third  party  national
employment  verification  service,  and a credit  report  which  summarizes  the
prospective  borrower's  credit history with local merchants and lenders and any
record of  bankruptcy.  From  February 1991 until May 1997, it was the policy of
each Affiliated Originator to obtain at least two credit reports (which could be
in the form of a merged  credit  bureau  report) with  respect to a  prospective
borrower.  Since May 1997, it has been the policy of each Affiliated  Originator
to obtain the single most  comprehensive  readily available credit bureau report
with  respect  to a  prospective  borrower.  Prior  to May  1997,  self-employed
prospective  borrowers  were required to submit their federal income tax returns
for the most recent two years and a separate  statement of income and  expenses.
Since May 1997,  self-employed  prospective  borrowers  are required to submit a
copy of their most recently filed Form 1040, without  schedules.  In the case of
mortgage  loans  originated  or  acquired  after  July  1993  by the  Affiliated
Originators,  facsimile copies of certain  verification  documents (such as bank
statements and verification of employment) may be accepted in lieu of originals.

     If the proposed  mortgage loan does not exceed 65% (prior to December 1992,
such  percentage  could be up to 80%) of the  value of the  underlying  property
based on the lesser of the appraised value  determined in an appraisal  obtained
by the  Affiliated  Originator at the  origination  of such mortgage loan or the
sale price for such  property  (the  "Original  Value"),  certain  self-employed
prospective  borrowers may be exempt from some or all of the  requirements  that
they provide financial statements,  current federal income tax returns and proof
of income.  However, each Affiliated Originator during 1990 and 1991 implemented
as part of its underwriting policy that telephone  verification of employment is
required  and,  beginning in April 1991,  proof of liquid  assets,  as described
below.  Certain  high net  worth  prospective  borrowers  with  ongoing  banking
relationships  with  Citicorp's  Private  Banking  Group may be exempt  from the
employment verification process.

     Once the  employment  verification  and the credit report are  received,  a
determination  is made as to whether the  prospective  borrower  has  sufficient
monthly  income  available to meet the  borrower's  monthly  obligations  on the
proposed  loan and other  expenses  related to the  residence as well as to meet
other  financial  obligations  and  monthly


                                       23
<PAGE>

living  expenses.   Each  Affiliated   Originator  has  established  as  lending
guidelines that the mortgage  payments,  plus applicable real property taxes and
any condominium or homeowner  association  common charges and hazard  insurance,
should not exceed 33% (34% in the case of ARMs) of the borrower's  gross income,
or that all monthly  payments,  including  those mentioned above and other fixed
obligations,  such as car payments, should not exceed 38% of gross income. Since
May 1997, loans that meet the Affiliated  Originator's  minimum credit score and
delinquency  requirements  may have debt  burden  ratios  of up to 45% and,  for
certain  corporate  relocation  loans,  50%.  Where  there  are two  individuals
co-signing  the  mortgage  note or  documents,  the  income and debt of both are
included in the computation. Since May 1997, each Affiliated Originator does not
require  income or asset  verification  in the case of their current  mortgagors
seeking to  refinance  their  mortgage  loans,  if such  refinancing  meets such
Affiliated  Originator's  minimum  seasoning,  payment  history and credit score
requirements.  In the  case of  other  mortgagors  seeking  to  refinance  their
mortgage loans, each Affiliated  Originator does not require asset  verification
and allows a debt burden ratio of up to 45% for loans that meet such  Affiliated
Originator's  minimum seasoning,  payment history and credit score requirements.
In the case of ARMs, the initial  mortgage rate may be lower than the sum of the
then-applicable  Index and Mortgage Margin for such loan, and the  determination
of whether the prospective  borrower has sufficient monthly income is made based
upon such lower initial  mortgage rate. In the case of mortgage loans originated
by the  California  branches  of CFSB  prior to June 1991,  the actual  mortgage
payments  may be  higher  due to a  higher  mortgage  rate at the  time the loan
documents are prepared,  but such  mortgage rate  generally  will not exceed the
anticipated rate used in such analysis by more than one percent. Often, however,
other credit  considerations  may cause a loan  underwriter to depart from these
guidelines, and a loan underwriter may require additional information or further
verification  of  information  provided so as to compensate for the exception to
the Affiliated Originator's lending guidelines.

     Since April 1991, each Affiliated  Originator's  underwriting policies have
required it to make a determination  as to whether the prospective  borrower has
sufficient  liquid  assets to acquire the property to be  financed,  taking into
account,  among other things,  proceeds from the sale of any prior residence and
cash on deposit in banks.  This  determination may be made from such evidence as
the existence of a contract for sale of any prior  residence and bank statements
supplied by the prospective  borrower.  As described in the preceding paragraph,
asset verification may be waived for certain refinancings.

     Each  Affiliated  Originator  requires  an  appraisal  to be  made  of each
property to be  financed,  which may be a master  appraisal  in the case of bulk
commitments.  The appraisal is conducted by either an independent fee appraiser,
a specially  trained employee of the Affiliated  Originator or an employee of an
affiliate.  The person  conducting the appraisal  personally visits the property
and  estimates  its market value on the basis of  comparable  properties.  Since
April 1997, each Affiliated Originator accepts, in lieu of originals, electronic
appraisals  without  photographs  from appraisers who utilize  certain  approved
appraisal  software packages.  Neither the independent  appraisers nor employees
receive  any  compensation  dependent  upon either the amount of the loan or its
consummation.  In normal practice,  the Affiliated  Originator's judgment of the
appraisal  determines the maximum amount which will be lent on the property.  In
connection with the refinancing of an existing  mortgage  originated or acquired
by certain  Affiliated  Originators,  such  Originators  may not cause a current
appraisal of the underlying  property to be prepared unless the then outstanding
principal amount of the mortgage loan is increased by an amount in excess of the
mortgagor's  out-of-pocket costs associated with the refinanced transaction plus
(at the  option of  qualifying  borrowers)  the amount  required  to pay off any
junior liens on the property. In connection with the modification of an existing
mortgage  pursuant  to a  Modification  Agreement,  a current  appraisal  of the
underlying property may not be prepared.

     Each Affiliated Originator obtains or causes to be obtained a search of the
liens of record to which the property  being  financed is subject at the time of
origination. Title insurance or, in lieu thereof, an attorney's opinion of title
in those jurisdictions in which such practice is acceptable,  is required in the
case of all mortgage  loans,  except that with respect to Cooperative  Loans, an
Affiliated  Originator  does not require a borrower or the cooperative to obtain
title insurance of any type or to obtain a title search of the property on which
the cooperative apartment building is located.

     Since January 1995,  each  Affiliated  Originator has used a credit scoring
system as part of its underwriting  process. This credit scoring system assesses
the prospective  borrower's  ability to repay a mortgage loan based upon certain
predetermined  mortgage  loan  characteristics  and  credit  risk  factors.  All
prospective  borrowers  remain subject to  verification  of employment,  income,
assets and credit history,  unless provided  otherwise herein. All credit scored
loans are rated  strong,  satisfactory  or  inconclusive.  Mortgage  loans rated
"strong" or  "satisfactory"  are not  subjected to the normal loan  underwriting
process  described  herein,  but are subject to  verification of property value.
Mortgage


                                       24
<PAGE>

loans rated  "inconclusive"  are underwritten in accordance with the normal loan
underwriting policies described herein.

     An Affiliated Originator may originate Leasehold Loans. Leasehold Loans are
approved in accordance with such Affiliated  Originator's  standard underwriting
criteria.  An ALTA leasehold title insurance policy is required,  which contains
no exceptions  for any  adjustable  features of the lease.  The title  insurance
policy  must  assure  that the  Affiliated  Originator's  first  mortgage is not
subordinate to any lien or encumbrance other than the land lease.  Additionally,
when deemed necessary, the California branches of CFSB require that a consent to
assignment  of lease and/or  subordination  agreement be obtained and  recorded.
Furthermore,  each Affiliated  Originator  requires that the leasehold estate be
assignable or transferable if it is subjected to the mortgage lien.

     The land lease  should  guarantee  such  Affiliated  Originator's  right to
receive any notice of default by the borrower and the right to cure the default.
Payments  due  pursuant  to the land lease are taken  into  account in both debt
ratio  calculations in connection with the  underwriting of such mortgage loans.
Finally,  each  Affiliated  Originator  requires that the term of the lease must
extend at least ten years  longer than the  scheduled  maturity on the  mortgage
loan.

     Prior to 1986,  the Affiliated  Originators  did not generally make one- to
four-family  real estate loans with  loan-to-value  ratios above 80% unless such
Affiliated  Originator had obtained primary mortgage  insurance  coverage.  From
1986 through January 1993, each Affiliated  Originator originated mortgage loans
with  loan-to-value  ratios  in  excess  of 80% but not more  than  90%  without
obtaining  primary  mortgage  insurance.  Since  February  1993, it has been the
policy of each Affiliated Originator not to make one- to four-family real estate
loans with  loan-to-value  ratios above 80% without  obtaining  primary mortgage
insurance.  Certain  corporate  relocation  programs,  offered by the Affiliated
Originators to employees of certain approved corporations,  permit single family
real estate loans with  loan-to-value  ratios in excess of 80% without requiring
primary mortgage insurance.  For these loans,  however, the applicable corporate
employer generally guarantees the excess of the amount of the mortgage loan over
the 80% loan-to-value amount. Certain other corporate relocation programs permit
the providing of subordinate  financing by the corporate employer at the time of
the origination of the first priority mortgage loan by an Affiliated Originator.

     The Affiliated Originators offer certain programs under which they may make
real  estate  loans  with a  loan-to-value  ratio  of up to 80% and  subordinate
financing similar to those described in the preceding paragraph to borrowers not
participating in a corporate  relocation  program without  requiring any primary
mortgage insurance or third party guarantees.

     Each  Affiliated  Originator's   underwriting  standards  are  designed  to
evaluate a borrower's  credit  standing and repayment  ability and the value and
adequacy of the  mortgaged  property as  collateral.  In the case of a Converted
Mortgage Loan, the borrower's  repayment  ability will have been determined only
at  origination  on  the  basis  of  such  borrower's  then-current  income  and
obligations  and interest  rates for  adjustable  interest rate  mortgage  loans
which,  traditionally,  have been  lower  than the  interest  rates  charged  by
mortgage  lenders on fixed interest rate mortgage loans.  The borrowers at their
exclusive  options may elect to convert their mortgage loans into fixed interest
rate  loans or to  continue  with  the  adjustable  interest  rate  features.  A
borrower's conversion option is conditional only upon a review by the applicable
Affiliated  Originator  of the loan payment  history and payment of a conversion
fee. It is possible  that the fixed  interest  rate payable by the borrower upon
conversion will be higher than the adjustable  interest rate otherwise  payable.
In that event, the borrower's capacity to repay the loan may be reduced.

     Unless otherwise specified in the Prospectus  Supplement,  no ARM Pool will
contain ARMs which provide for conversion options.

     Each  Affiliated  Originator  originates  Buydown  Mortgage  Loans.  Unless
otherwise  specified in the  applicable  Prospectus  Supplement,  (i) during the
buydown  period,  each of the Buydown  Mortgage  Loans will provide for payments
payable by the  Mortgagor  based on a  hypothetical  reduced  interest rate (the
"buydown mortgage rate") that will not have been more than 5% below the mortgage
rate at  origination,  (ii) the annual  increase  in the buydown  mortgage  rate
during the buydown  period  will not exceed 1% or in the case of tiered  payment
Mortgage  Loans the annual  increase in the  mortgagors'  monthly  payment  will
increase as described in the "The  Pools--Mortgage  Loans" and (iii) the buydown
period will not exceed  three  years in the case of  Citibank  Pools and Buydown
Mortgage  Loans  originated by the Florida  branches of CFSB,  five years in the
case of CMI  Pools,  and six years in the case of CFSB Pools  (other  than those
Buydown Mortgage Loans originated by its Florida branches).  For all Pools, with
respect to  Mortgage  Loans  originated  prior to October 1, 1991,  the  maximum
amount of the buydown funds that may be  contributed by the seller or builder of
the related  Mortgaged  Property is limited to 9% of the  Original  Value of the
Mortgaged  Property;  with  respect to  Mortgage  Loans  originated  on or after
October 1, 1991,  the maximum amount of buydown funds that may 


                                       25
<PAGE>

be  contributed  by the seller or builder of the related  Mortgaged  Property is
limited to 6% of the Original Value of the Mortgaged Property. These limitations
do not apply to contributions  from the Mortgagor or immediate  relatives or the
employer  of  the  mortgagor.  Except  as  may  be  otherwise  indicated  in the
applicable Prospectus Supplement, the Mortgagor under each Buydown Mortgage Loan
will have been qualified at an interest rate which is not more than 5% per annum
below the current mortgage rate at origination.  Accordingly, the repayment of a
Buydown  Mortgage  Loan is  dependent  on the ability of the  Mortgagor  to make
larger  monthly  payments  after the buydown  funds have been  depleted and, for
certain Buydown Mortgage Loans, while such funds are being depleted.

     All the  above  described  Affiliated  Originators  (other  than  Citibank)
purchase mortgage loans originated by other parties.  Except as may be otherwise
specified in the applicable Prospectus Supplement,  mortgage loans acquired from
other parties,  other than in a bulk purchase,  are reviewed by such  Affiliated
Originators  or  by  unaffiliated   third  parties  under  contracts  with  such
Affiliated  Originators  for compliance  with the above  described  underwriting
criteria,  and such Affiliated  Originators have the right to reject loans which
fail to conform to such criteria.  In connection with an acquisition of mortgage
loans in a bulk purchase, (i.e., loans aggregating more than $15,000,000) from a
nationally  recognized  mortgage  loan  originator,   the  acquiring  Affiliated
Originator  will  review the  selling  originator's  underwriting  policies  and
procedures with a view to their compliance with such Affiliated  Originator's or
FNMA/FHLMC  underwriting  standards  and, in  addition,  will  conduct a limited
mortgage loan file review.

LOAN UNDERWRITING POLICIES OF THE CITIMAE ORIGINATORS

     Except as described below, each Mortgage Loan contributed to the Trust by a
CitiMae  Originator  has  satisfied  the  credit,   appraisal  and  underwriting
guidelines established by CitiMae or one of its affiliates,  as set forth in its
Sellers'  Guide,  which  forms  a  part  of  the  agreement  pursuant  to  which
unaffiliated  loan  originators  sell  mortgage  loans to  CitiMae or one of its
affiliates.   Such  underwriting  guidelines  may  be  varied  in  cases  deemed
appropriate by CitiMae or one of its  affiliates.  To determine  satisfaction of
such underwriting  guidelines,  CitiMae or a loan reviewer reviewed the Mortgage
Loans.

     CitiMae's underwriting  guidelines are intended to evaluate the Mortgagor's
credit  standing  and  repayment  ability  and the  value  and  adequacy  of the
Mortgaged Property as collateral.  CitiMae's underwriting guidelines are applied
in a standard  procedure which complies with  applicable  federal and state laws
and regulations.  Initially,  a prospective  Mortgagor is required to fill out a
detailed application  designed to provide pertinent credit information.  As part
of the  description of the  Mortgagor's  financial  condition,  the Mortgagor is
required to provide a current  balance sheet  describing  assets and liabilities
and a statement of income and expenses, as well as an authorization to apply for
a credit  report which  summarizes  the  Mortgagor's  credit  history with local
merchants and lenders and any record of bankruptcy.  In addition,  an employment
verification  is obtained  from the  Mortgagor's  employer  wherein the employer
reports the length of employment with that organization, the current salary, and
an indication as to whether it is expected that the Mortgagor will continue such
employment  in the future.  If a  prospective  Mortgagor is  self-employed,  the
Mortgagor is required to submit copies of signed tax returns. The Mortgagor also
authorizes  deposit  verification  at  all  financial   institutions  where  the
Mortgagor has demand or savings accounts.

     Once the  employment  and deposit  verifications  and the credit report are
received,  a determination  is made as to whether the prospective  Mortgagor has
sufficient  monthly  income  available  (i)  to  meet  the  Mortgagor's  monthly
obligations  on the proposed  mortgage  loan and other  expenses  related to the
Mortgaged Property (such as property taxes, hazard insurance and maintenance and
utility costs) and (ii) to meet other  financial  obligations and monthly living
expenses.

     In determining  the adequacy of the property as collateral,  an independent
appraisal is made of each property  considered for  financing.  The appraiser is
required to inspect the  property  and verify that it is in good  condition  and
that  construction,  if new, has been  completed.  The appraisal is based on the
appraiser's  judgment of values,  giving  appropriate  weight to both the market
value of comparable homes and the cost of replacing the property.

     CitiMae and its affiliates employ alternative  underwriting  guidelines for
certain  qualifying  mortgage loans  underwritten by CitiMae and its affiliates.
Depending  on the facts and  circumstances  of a  particular  case,  CitiMae may
accept mortgage loans based upon limited  documentation that eliminates the need
for either income verification 


                                       26
<PAGE>

and/or asset verification. The objective of the limited documentation guidelines
is to shift the emphasis of the underwriting process from the credit standing of
the Mortgagor to the value and adequacy of the Mortgaged Property as collateral.
A  borrower(s)  ability  and  willingness  to repay a mortgage  loan in a timely
manner must be  demonstrated  by the quality,  quantity and durability of income
history, history of debt management and net worth accumulation.  If greater than
10% of the Mortgage Loans by aggregate  Adjusted  Balance as of the Cut-Off Date
were  originated  under  limited  documentation  guidelines,  the  percentage of
Mortgage  Loans  originated  under such  guidelines  will be as  provided in the
Prospectus Supplement.

     Depending upon the facts and circumstances of a particular case, CitiMae or
one of its affiliates may accept mortgage loans based upon seasoning and payment
histories without obtaining standard underwriting  documentation.  The objective
of  the  seasoned  underwriting  guidelines  is to  shift  the  emphasis  of the
underwriting  process  from the credit  standing  and  repayment  ability of the
Mortgagor at the time of origination to the actual repayment  performance of the
related  mortgage  loan. If greater than 10% of the Mortgage  Loans (by Adjusted
Balance as of the Cut-Off Date) were  originated  under  seasoned  mortgage loan
guidelines,  the percentage of such Mortgage  Loans by Adjusted  Balance will be
provided in the Prospectus Supplement.

LOAN UNDERWRITING STANDARDS OF THIRD PARTY ORIGINATORS

     If Third Party Loans are included in a Pool, the underwriting  policies and
guidelines of the related Third Party  Originators may not be identical to those
set forth above for the Affiliated  Originators or for CitiMae. As part of CMI's
process in purchasing  Third Party Loans,  CMI will review a sample of the Third
Party Loans to determine  whether the Third Party Loans would generally  conform
to CMI's underwriting standards.  The Third Party Loans will be credit scored or
reunderwritten,  in each case in whole or in part,  by CMI in order to determine
whether the underwriting  process for the Third Party Loans adequately  assessed
the borrower's  ability to repay and the adequacy of the property as collateral,
based on CMI's underwriting standards.

         DELINQUENCY, FORECLOSURE AND LOSS CONSIDERATIONS AND EXPERIENCE

     LOSS AND DELINQUENCY CONSIDERATIONS

     There can be no assurance that the foreclosure  and delinquency  experience
on  the  Mortgage   Loans   underlying  the   CitiMortgageCertificates   or  the
Certificates  will be  comparable  to that set forth below.  The Mortgage  Loans
underlying the CitiMortgageCertificates or the Certificates may have a different
range of  remaining  maturities  from those  represented  by the  tables  below.
Furthermore,   general   economic   conditions   generally   affect   levels  of
delinquencies, defaults and foreclosures. Historically,  delinquencies, defaults
and  foreclosures  do not reach their peak until sometime after the lowest point
in  an  economic  cycle.  Finally,  the  residential  real  estate  market  in a
particular area could experience an overall decline in property values such that
the  then-current  loan-to-value  ratios of the Mortgage  Loans  underlying  the
CitiMortgageCertificates  or the  Certificates  could be  higher,  and  could be
substantially  higher,  than such ratios at origination.  In addition,  property
values could decline to the point that the amounts  owing on the Mortgage  Loans
underlying all or part of the  CitiMortgageCertificates  or the Certificates and
any secondary  financing on the related mortgaged  properties could become equal
to or greater than the value of such mortgaged  properties.  In that event,  the
actual rate of delinquencies and the number of foreclosures could be higher than
those  previously   experienced.   In  addition,   the  costs  and  expenses  of
foreclosure,  together  with any  damage to or  deterioration  of the  Mortgaged
Property,  may result in a determination by the Servicer that foreclosure  would
not increase the net  proceeds of  liquidation  available  for  distribution  to
Certificateholders.  The Servicer is not required under the Pooling Agreement to
expend  its own  funds to  foreclose  on a  defaulted  Mortgage  Loan  unless it
generally  determines that foreclosure  would increase such net proceeds and its
expenditures will be recoverable.

     In recent years,  California,  the New York  Metropolitan  Area and several
other  regions  have  experienced  significant  declines in housing  prices.  In
addition,   California  and  certain  other  regions  have  experienced  natural
disasters,  such as  earthquakes,  fires,  floods  and  hurricanes,  which  have
adversely affected property values in the affected areas. Any direct damage to a
mortgaged property securing a Mortgage Loan caused by such disasters, as well as
any  deterioration  in  housing  prices or values or the  existence  of  adverse
economic  conditions  which  adversely  affect the ability of mortgagors to make
timely and full  payments on Mortgage  Loans,  may  increase the  likelihood  of
delinquencies,  and the  likelihood  and  magnitude  of losses,  on the Mortgage
Loans,  which may result in losses on the Certificates to the extent such losses
are not covered by insurance or any credit  enhancement.  Such  delinquencies or

                                       27
<PAGE>

losses,   if  occurring,   may  increase  the  likelihood  of  foreclosures  and
prepayments on Mortgage  Loans,  which may in turn have an adverse effect on the
yield of the Certificates or of certain classes of the CitiCertificates.

     The Mortgaged Properties may be located in "anti-deficiency"  states where,
in general, a lender providing credit on a one- to four-family  property may not
seek a deficiency  judgment against the Mortgagor but rather must look solely to
the  property  for  repayment  in the  event  of  foreclosure.  Each  Affiliated
Originator's, CitiMae's and each Third Party Originator's underwriting standards
in all states  (including  such  anti-deficiency  states)  require  underwriting
officers to be  satisfied  that the value of the  property  being  financed,  as
indicated by the appraisal, currently supports the outstanding loan balance. See
Appendix  A: "The  Mortgage  Loans and  CitiMortgageCertificates--Certain  Legal
Aspects of the Mortgage Loans--Anti-Deficiency Legislation and Other Limitations
on Lenders."  However,  there can be no assurance that property  values will not
decline after the Mortgage Loan is originated.

DELINQUENCY  AND  FORECLOSURE  EXPERIENCE  OF AFFILIATED  ORIGINATORS'  SERVICED
PORTFOLIO

     The  delinquency  and  foreclosure  experience  on the portfolio of one- to
four-family conventional residential first mortgage loans originated or acquired
by the Affiliated  Originators and certain other  affiliates of CMI and serviced
by CMI for the periods indicated is set forth in the following table. During the
period  covered in the table,  this  portfolio  increased  from $35.6 billion on
December 31, 1994 to $36.0  billion on December 31, 1997.  CMI's total  serviced
portfolio  includes both fixed and  adjustable  interest  rate  mortgage  loans,
including  Buydown  Mortgage Loans,  tiered-payment  mortgage loans,  loans with
stated  maturities of 15 to 30 years and other types of mortgage  loans having a
variety of payment  characteristics,  and  includes  mortgage  loans  secured by
mortgaged  properties in geographic  locations that may not be representative of
the  geographic  distribution  or  concentration  of  the  Mortgaged  Properties
securing the Mortgage Loans.  There can be no assurance that the delinquency and
foreclosure  experience  set forth below with  respect to CMI's  total  serviced
portfolio will be similar to the results that may be experienced with respect to
the Mortgage Loans underlying the CitiMortgageCertificates or the Certificates.

          DELINQUENCY AND FORECLOSURE EXPERIENCE OF SERVICED PORTFOLIO
              OF ONE- TO FOUR-FAMILY RESIDENTIAL MORTGAGE LOANS (1)

<TABLE>
<CAPTION>
                                      AS OF                  AS OF                      AS OF                      AS OF
                                DECEMBER 31, 1994      DECEMBER 31, 1995          DECEMBER 31, 1996          DECEMBER 31, 1997
                                -----------------      -----------------          -----------------          -----------------
                                        BY DOLLAR                 BY DOLLAR                 BY DOLLAR                   BY DOLLAR
                                        AMOUNT OF                 AMOUNT OF                 AMOUNT OF                   AMOUNT OF
                             BY NO. OF    LOANS      BY NO. OF     LOANS        BY NO. OF     LOANS       BY NO. OF      LOANS
                               LOANS   (IN MILLIONS)   LOANS   (IN MILLIONS)      LOANS   (IN MILLIONS)     LOANS     (IN MILLIONS)
                               -----   -------------   -----   -------------      -----   -------------     -----     -------------
<S>                           <C>        <C>          <C>        <C>             <C>        <C>             <C>        <C>      
Total Portfolio ........      350,751    $35,590.9    330,529    $34,880.5       309,754    $34,084.8       303,896    $35,955.8
Period of Delinquency(2)                                                                                               
  30-59 Days ...........       12,309    $ 1,237.3     12,216    $ 1,213.7        10,487    $ 1,014.9         9,368    $   906.9
  60-89 Days ...........        3,847    $   412.3      4,098    $   431.7         2,444    $   253.1         1,947    $   194.3
  90 Days or more ......        5,967    $   740.4      5,724    $   676.2         3,291    $   371.8         2,646    $   286.1
Total Loans Delinquent .       22,123    $ 2,390.0     22,038    $ 2,321.6        16,222    $ 1,639.8        13,961    $ 1,387.3
Delinquency Ratio ......         6.31%        6.72%      6.67%        6.66%         5.24%        4.81%         4.59%        3.86%
Foreclosures(3) ........        6,245    $   835.7      6,067    $   793.2         5,822    $   696.0         3,539    $   406.3
Foreclosure Ratio ......         1.78%        2.35%      1.84%        2.27%         1.88%        2.04%         1.16%        1.13%
</TABLE>
- ----------

(1)  The  table  includes  mortgage  loans  serviced  by  CMI  and  held  by  an
     Originator,  in its own portfolio, and certain affiliates' portfolios.  The
     table also includes mortgage loans serviced by CMI which have been packaged
     and  sold to FNMA and  FHLMC,  in  transactions  pursuant  to  registration
     statements  under the  Securities Act and in  transactions  exempt from the
     registration requirements of the Securities Act. The table does not include
     loans  purchased  strictly  for  servicing  revenue  or, in the case of the
     Florida  branches of CFSB, loans originated prior to the acquisition by the
     Citicorp  group  of the  Florida  branches  of CFSB in  January  1984.  The
     portfolio  includes  cooperative  loans.  Since  June  20,  1997,  CMI  has
     transferred the servicing of 803 delinquent  loans and loans in foreclosure
     totaling $106.0 million.

(2)  The  Period of  Delinquency  is based upon the number of days past due on a
     contractual  basis. No mortgage loan is considered  delinquent for purposes
     of this table until 30 days past due on a contractual basis.

(3)  The table shows mortgage loans for which  foreclosure  proceedings had been
     instituted at the dates indicated.

                                       28
<PAGE>

     Unless otherwise  specified in the Prospectus  Supplement,  CMI will act as
subservicer  of the  Mortgage  Loans in the CMI Pools,  CFSB Pools and  Citibank
Pools.

DELINQUENCY,   FORECLOSURE  AND  LOSS  EXPERIENCE  OF  AFFILIATED   ORIGINATORS'
SECURITIZED PORTFOLIO

     The delinquency, foreclosure and loss experience on the one- to four-family
conventional  residential  first mortgage loans that were originated or acquired
and  subsequently  sold by the  Affiliated  Originators,  CMSI and certain other
affiliates of CMI pursuant to registration  statements  under the Securities Act
and  serviced  by CMI is set  forth  in the  following  tables  for the  periods
indicated.  During the period  covered in the tables,  this group of securitized
mortgage loans  decreased from $7.4 billion on December 31, 1994 to $5.7 billion
on December 31, 1997. CMI's total securitized  portfolio includes both fixed and
adjustable  interest rate mortgage  loans,  including  Buydown  Mortgage  Loans,
tiered-payment  mortgage loans,  loans with stated  maturities of 15 to 30 years
and other types of mortgage  loans having a variety of payment  characteristics,
and includes  mortgage  loans  secured by  mortgaged  properties  in  geographic
locations  that may not be  representative  of the  geographic  distribution  or
concentration of the Mortgaged Properties securing the Mortgage Loans.

             DELINQUENCY AND FORECLOSURE EXPERIENCE OF SECURITIZED
                 ONE- TO FOUR-FAMILY RESIDENTIAL MORTGAGE LOANS

<TABLE>
<CAPTION>
                                      AS OF                  AS OF                      AS OF                      AS OF
                                DECEMBER 31, 1994      DECEMBER 31, 1995          DECEMBER 31, 1996          DECEMBER 31, 1997
                                -----------------      -----------------          -----------------          -----------------
                                        BY DOLLAR                 BY DOLLAR                 BY DOLLAR                   BY DOLLAR
                                        AMOUNT OF                 AMOUNT OF                 AMOUNT OF                   AMOUNT OF
                             BY NO. OF    LOANS      BY NO. OF     LOANS        BY NO. OF     LOANS       BY NO. OF      LOANS
                               LOANS   (IN MILLIONS)   LOANS   (IN MILLIONS)      LOANS   (IN MILLIONS)     LOANS     (IN MILLIONS)
                               -----   -------------   -----   -------------      -----   -------------     -----     -------------
<S>                            <C>       <C>          <C>       <C>              <C>        <C>             <C>        <C>      
Total Portfolio ............   53,693    $ 7,376.5    48,182    $ 6,579.9         40,489    $ 5,503.2       37,050    $ 5,738.4
Period of Delinquency(2)                                                                                  
  30-59 Days ...............    1,885    $   235.2     1,768    $   206.9          1,339    $   151.6        1,073    $   126.0
  60-89 Days ...............      578    $    80.1       578    $    73.2            321    $    40.3          237    $    26.7
  90 Days or more ..........    1,044    $   182.9       889    $   138.6            411    $    58.7          313    $    45.8
Total Loans Delinquent .....    3,507    $   498.2     3,235    $   418.7          2,071    $   250.6        1,623    $   198.5
Delinquency Ratio ..........     6.53%        6.75%     6.71%        6.36%          5.11%        4.55%        4.38%        3.46%
Foreclosures(3) ............    1,621    $   288.3     1,302    $   217.8            993    $   146.6          653    $    90.5
Foreclosure Ratio ..........     3.02%        3.91%     2.70%        3.31%          2.45%        2.66%        1.76%        1.58%
</TABLE>

- ----------
(1)  The  Period of  Delinquency  is based upon the number of days past due on a
     contractual  basis. No mortgage loan is considered  delinquent for purposes
     of this table until 30 days past due on a contractual basis.

(2)  The table shows mortgage loans for which  foreclosure  proceedings had been
     instituted at the dates indicated.

The  following  table  indicates the level of cumulative net losses with respect
     to securities sold pursuant to the Registration  Statements.  The amount of
     net losses was computed by  aggregating  the amount of draws for net losses
     against  applicable  credit  enhancement  and the  amount of net losses not
     covered  by  credit   enhancement,   as   indicated   in  the   reports  to
     Certificateholders   for  the  securities   sold  under  the   Registration
     Statements.

                      LOSS EXPERIENCE OF SECURITIES ISSUED
                    PURSUANT TO THE REGISTRATION STATEMENTS

<TABLE>
<CAPTION>
                                CUMULATIVE                   AGGREGATE STATED AMOUNT OF
                          NET LOSSES (MILLIONS)(1)        SECURITIES ISSUED (MILLIONS)(1)(2)         LOSS RATIO(3)
                          ------------------------        ----------------------------------         -------------
<S>                              <C>                                <C>                                   <C> 
As of December 31, 1994          215.6                              25,470.6                              .85%
As of December 31, 1995          331.1                              25,857.4                             1.28%
As of December 31, 1996          413.8                              25,857.4                             1.60%
As of December 31, 1997          469.8                              27,214.6                             1.73%
</TABLE>

- ----------

(1)  Rounded to the nearest hundred thousand.

(2)  The  Aggregate  Stated Amount of securities  issued  represents  securities
     issued which have had at least one Distribution Date.

(3)  Loss  Ratio  represents  cumulative  net  losses  as a  percentage  of  the
     aggregate  Stated  Amount  of  securities  issued  under  the  Registration
     Statements.

                                       29
<PAGE>

     There can be no assurance that the  delinquency,  foreclosure or historical
loss  experience  indicated in the preceding  tables with respect to CMI's total
securitized  portfolio  will be similar to the results  that may be  experienced
with respect to the Mortgage Loans  underlying the  CitiMortgageCertificates  or
the Certificates.

DELINQUENCY AND FORECLOSURE EXPERIENCE OF CITIMAE ORIGINATORS' PORTFOLIO

     Historically,  a variety  of factors  including  the  appreciation  of real
estate  values have limited  CitiMae's  loss and  delinquency  experience on its
portfolio of master  serviced  mortgage  loans.  There can be no assurance  that
factors beyond CitiMae'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.

     If CitiMae Mortgage Loans have an aggregate  Adjusted Balance exceeding 10%
of the aggregate  Adjusted  Balance of the Mortgage Loans in a Pool, the related
Prospectus  Supplement will describe the delinquency and foreclosure  experience
of CitiMae.

DELINQUENCY AND FORECLOSURE EXPERIENCE OF THIRD PARTY ORIGINATORS' PORTFOLIOS

     If Third Party Loans  originated by any one Third Party  Originator have an
aggregate  Adjusted Balance  exceeding 10% of the aggregate  Adjusted Balance of
the Mortgage Loans in a Pool, the related  Prospectus  Supplement  will describe
the delinquency and foreclosure experience of such Third Party Originator.

                                       30
<PAGE>

                                    CITICORP

     Citicorp is a holding  company  incorporated  under the laws of Delaware on
December 4, 1967 whose  principal  subsidiary  is Citibank,  N.A. The  principal
office of Citicorp is located at 399 Park Avenue,  New York, New York 10043; its
telephone number is (212) 559-1000.

     Through its subsidiaries and affiliates,  including the Issuer,  CMI, CFSB,
Citibank  and  CitiMae,   Citicorp  is  a   multinational   financial   services
organization serving the financial needs of businesses,  governments,  financial
institutions and individuals in the United States and throughout the world.

                                 USE OF PROCEEDS

     The  net  proceeds  to be  received  by the  Issuer  from  the  sale of the
Certificates  are  intended  to be  used  for  the  purpose  of  originating  or
purchasing new  residential  mortgage loans from the  Originators  and for other
general corporate  purposes,  which may include the repayment of indebtedness to
Citicorp,  its affiliates or unaffiliated parties.  Certificates will be sold in
Series from time to time.  The timing and amount of such sales will be dependent
upon a number of factors, including the volume of mortgage loans acquired by the
Issuer,  prevailing  interest  rates,  availability  of funds and general market
conditions.

                             THE POOLING AGREEMENTS

REPORTS TO CERTIFICATEHOLDERS

     For each Series, the Trustee will include with each distribution to holders
of  CitiCertificates,  and will send to  holders  of  Residual  Certificates,  a
statement  prepared by the Issuer setting forth the following  information  (per
Single Certificate, as to (i) through (iii) below):

     (i) to each  Certificateholder  of a Class  of  CitiCertificates  on  which
distributions  in reduction of the Stated Amount are then being made, the amount
of such payment which represents a reduction in the Stated Amount and the amount
which represents  interest,  the amount, if any, which represents losses and the
Stated Amount of a Single  Certificate  of each Class after giving effect to the
reduction of Stated Amount on such Distribution Date;

     (ii) to each  Certificateholder  of a Class of  CitiCertificates on which a
distribution  of interest  only is then being made,  the amount of such interest
payment and the aggregate  Stated  Amount of  Certificates  outstanding  of each
Class after giving effect to reductions of Stated  Amount,  if any, made on such
Distribution Date and on any Special  Distribution Date occurring  subsequent to
the last such  report and after  including  in the  aggregate  Stated  Amount of
Accrual CitiCertificates outstanding the amount of any accrued interest added to
the Stated Amount thereof on such Distribution Date.

     (iii) to each holder of an Accrual CitiCertificate (but only if such holder
shall not have received on such  Distribution  Date a  distribution  of interest
equal to the entire amount of interest  accrued on such  CitiCertificate  during
the Interest Accrual Period with respect to such Distribution Date):

          (A) the  information  contained  in the report  delivered  pursuant to
     clause (ii) above,

          (B) the  interest  accrued  on a Single  Certificate  of such Class of
     Accrual CitiCertificates during the Interest Accrual Period with respect to
     such  Distribution  Date and added to the  Stated  Amount  of such  Accrual
     CitiCertificate, and

          (C) the Stated Amount of a Single Certificate of such Class of Accrual
     CitiCertificate after giving effect to the addition thereto of all interest
     accrued thereon during such Interest Accrual Period;

     (iv) the amount of servicing compensation received by the Issuer during the
preceding  Reporting  Period and such other customary  information as the Issuer
deems necessary or desirable to enable  Certificateholders  to prepare their tax
returns;

     (v) the  book  value  of any  real  estate  acquired  by the  Pool  through
foreclosure or otherwise;

     (vi) the number and aggregate principal amount of Mortgage Loans delinquent
30 days and 60 or more days;

     (vii) the amount  remaining  under any form of credit  support after giving
effect to the declining Amount  Available and any payments  thereunder and other
amounts charged thereto on the applicable Distribution Date;


                                       31
<PAGE>

     (viii) the  aggregate  amount  received  in respect of  Mortgage  Loans and
Mortgage Certificates during the related Due Period; and

     (ix) the aggregate  Adjusted  Balance of the Mortgage  Loans as of the last
day of the month next  preceding  the month of such  distribution  after  giving
effect  to  payments  on the  Mortgage  Loans  due on the  related  Due Date and
Principal Prepayments distributed on the Distribution Date.

     The Issuer  will  provide  Certificateholders  that are  federally  insured
savings  and  loan   associations  with  certain  reports  and  with  access  to
information  and  documentation  regarding the Mortgage Loans  evidenced by such
Series  sufficient  to  permit  such  associations  to  comply  with  applicable
regulations of the Office of Thrift  Supervision  (the "OTS"),  the successor to
the Federal Home Loan Bank Board. (Section 3.05)

     In addition to the  foregoing,  the  Trustee  shall file with the  Internal
Revenue Service and applicable state and local taxing authorities and furnish or
make available to Certificateholders such statements or information at the times
and in the  manner  as may be  required  by the  Code  or  other  tax  laws  and
regulations in accordance with the Pooling Agreement.

EVIDENCE AS TO COMPLIANCE

     The  Pooling  Agreement  for  each  Series  will  provide  that a  firm  of
independent  public  accountants will furnish to the Trustee and to holders of a
certain  percentage of  Certificates  outstanding  (i) on or before March 31, of
each year,  beginning with March 31 in the year which begins not less than three
months after the date of the initial  issuance of Certificates of that Series, a
statement as to compliance with the Pooling Agreement  relating to the servicing
of the  Affiliated  Mortgage  Loans and (ii) on or before  September 30, of each
year,  beginning  with September 30 in the year which begins not less than three
months after the date of initial  issuance of  Certificates  of that  Series,  a
statement as to compliance with the Pooling Agreement  relating to the servicing
of the CitiMae  Mortgage Loans.  (Section 3.09) The Pooling  Agreement will also
provide for  delivery to the Trustee and to holders of a certain  percentage  of
Certificates  outstanding on or before March 31 and September 30,  respectively,
of each year with respect to the Affiliated Mortgage Loans and September 30 with
respect to the CitiMae Mortgage Loans, beginning with March 31 and September 31,
respectively, in the year which begins not less than three months after the date
of the initial issuance of Certificates of that Series, a statement signed by an
officer  of the  Issuer  to  the  effect  that  the  Issuer  has  fulfilled  its
obligations  under such Pooling  Agreement  throughout the preceding year or, if
there has been a default in the fulfillment of any such  obligation,  describing
each such default. (Section 11.01)

     Certificateholders  may  obtain  copies of such  statements  by  request in
writing addressed to the Trustee.

CERTAIN MATTERS REGARDING THE ISSUER AND CITICORP

     The Pooling  Agreement for each Series will provide that the Issuer may not
resign from its  obligations  and duties as servicer  thereunder,  except upon a
determination  evidenced by an opinion of counsel that the Issuer's  performance
of such duties is no longer permissible under applicable law or upon the consent
of the  Trustee  and  holders of more than  662/3% of the  Stated  Amount of the
Certificates  and of more than 662/3% of the  Percentage  Interests  of Residual
Certificates then  outstanding.  No such resignation will become effective until
the Trustee or a successor  servicer  has assumed the Issuer's  obligations  and
duties under such Pooling Agreement.  Citicorp's  obligations under the Guaranty
for any Series for which a Guaranty  is provided  for in the related  Prospectus
Supplement will, upon issuance thereof, be irrevocable;  provided, however, that
the Issuer may substitute in whole or in part another form of credit support for
Citicorp's  Guaranty,  as described herein.  See "--Amendment"  below.  (Section
6.04)

     The Pooling  Agreement  will  further  provide  that neither the Issuer nor
Citicorp,  if  Citicorp  has  issued a  Guaranty,  nor any of  their  respective
directors,  officers,  employees and agents, shall be under any liability to the
Pool or the  Certificateholders  for taking any  action or for  refraining  from
taking any action pursuant to the Pooling Agreement,  or for errors in judgment;
provided,  however, that neither the Issuer nor Citicorp, if Citicorp has issued
a Guaranty,  nor any such person will be protected  against any liability  which
would otherwise be imposed by reason of willful misfeasance,  bad faith or gross
negligence in the  performance  of duties or by reason of reckless  disregard of
obligations  and duties  thereunder.  In addition,  the Pooling  Agreement  will
provide that neither the Issuer nor Citicorp, if Citicorp has issued a Guaranty,
is under any obligation to appear in, prosecute or defend any legal action which
is not incidental to the Issuer's servicing  responsibilities  under the Pooling
Agreement  and which in its opinion may involve it in any expense or  liability.
The Issuer may,  however,  in its discretion  undertake any such action which it
may 


                                       32
<PAGE>

deem  necessary or desirable in respect of the Pooling  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
Pool and the Issuer and Citicorp will be entitled to be reimbursed  therefor out
of the Certificate Account. (Section 6.03)

     The Issuer or Citicorp,  if Citicorp has issued a Guaranty,  and any of its
directors,  officers,  employees or agents will be indemnified and held harmless
by the Pool against any loss,  liability or expense  incurred in connection with
any suit in  equity,  action at law or other  proceedings,  other than any loss,
liability  or expense  incurred by reason of willful  misfeasance,  bad faith or
gross  negligence  in  the  performance  of  duties  or  reckless  disregard  of
obligations  and  duties  under  the  Pooling  Agreement.   (Section  6.03)  Any
corporation  into  which  the  Issuer  may be  merged  or  consolidated,  or any
corporation resulting from any merger,  conversion or consolidation to which the
Issuer is a party, or any corporation  succeeding to the business of the Issuer,
or any  entity,  more than 50% of which is owned,  directly  or  indirectly,  by
Citicorp,  which assumes the obligations of the Issuer, will be the successor of
the Issuer under the Pooling  Agreement;  provided  that,  in the event any such
assumption is made, the Issuer will not be released from any of its  obligations
thereunder.  (Section  6.02) The Issuer may at any time  subcontract  any duties
under the Pooling Agreement to any entity,  including an entity more than 50% of
which is owned,  directly or indirectly,  by Citicorp.  In the event of any such
subcontract,   the  Issuer  will  remain  responsible  for  the  subcontractor's
performance in accordance with the Pooling Agreement. (Section 6.06)

EVENTS OF DEFAULT

     Events of Default under the Pooling  Agreement for each Series will consist
of (i) any failure by the Issuer (a) to distribute to Certificateholders of that
Series any required payment  (assuming the Issuer is the paying agent) or (b) to
pay over to the paying  agent for  distribution  to  Certificateholders  of that
Series any  required  payment  (assuming  the  Issuer is not the paying  agent),
provided  that any such  failure  in (a) or (b) may be  remedied  by making  the
required  distribution  to  Certificateholders  (A) within ten business  days of
receiving   notice  of  any  such   failure   if  the  Issuer   distributed   to
Certificateholders or paid over to the paying agent less than the amount of such
required  payment  due to an error in  calculating  the amount of such  required
payment and (B) within three business days of receiving notice if the Issuer did
not  distribute to  Certificateholders  or pay over to the paying agent the full
amount in respect of such  required  payment for any reason  other than that set
forth in clause (A) above;  (ii) any  failure  by the Issuer to  repurchase  any
Mortgage Loan or Mortgage  Certificate as required  under the Pooling  Agreement
which  continues  unremedied  for 60  business  days after the giving of written
notice of such  failure  to the  Issuer by the  Trustee or to the Issuer and the
Trustee  by  the  holders  of  Certificates   evidencing   ownership   interests
aggregating not less than 662/3% of the Stated Amount of the Certificates; (iii)
any failure by the Issuer duly to observe or perform in any material respect any
of its other covenants or agreements in such Pooling Agreement,  if such failure
materially affects the rights of Certificateholders and continues unremedied for
60 days after the giving of written  notice of such failure to the Issuer by the
Trustee, or to the Issuer and the Trustee by the holders of not less than 662/3%
of the Stated Amount of the Certificates; and (iv) certain events of insolvency,
readjustment  of  debt,   marshalling  of  assets  and  liabilities  or  similar
proceedings  and  certain  actions  by the  Issuer  indicating  its  insolvency,
reorganization or inability to pay its obligations. (Section 7.01)

RIGHTS UPON EVENT OF DEFAULT

     As long as an Event of Default  under the Pooling  Agreement for any Series
remains unremedied, the Trustee or holders of not less than 662/3% of the Stated
Amount of the  Certificates  may terminate all of the rights and  obligations of
the Issuer under such Pooling  Agreement  whereupon  the Trustee will succeed to
all the  responsibilities,  duties  and  liabilities  of the  Issuer  under such
Pooling Agreement and will be entitled to similar compensation arrangements. The
Issuer shall be entitled to payment of certain  amounts  payable to it under the
Pooling   Agreement  in  respect  of  services  rendered   notwithstanding   the
termination of its activities as servicer.  No such  termination  will affect in
any manner the issuer's  obligations under any credit support. In the event that
the  Trustee is  unwilling  or unable to act as  servicer,  it may  appoint,  or
petition a court of competent jurisdiction for the appointment of, a housing and
home  finance  institution  with a net  worth of at least  $5,000,000  to act as
successor servicer under such Pooling Agreement.  The Trustee and such successor
may agree upon the servicing  compensation to be paid,  which in no event may be
greater  than the  Servicing  Compensation  to the  Issuer  under  such  Pooling
Agreement. (Sections 7.01 and 7.02)

     No Certificateholder of any Series will have the right under the applicable
Pooling  Agreement  to  institute  any  proceeding  with respect to such Pooling
Agreement, unless such holder previously has given to the Trustee written


                                       33
<PAGE>

notice of default and unless the holders of  Certificates  evidencing  ownership
interests  aggregating  not  less  than  662/3%  of  the  Stated  Amount  of the
Certificates  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 proceedings. (Section 10.03) However, the Trustee is under no
obligation  to exercise any of the trusts or powers  vested in it by the Pooling
Agreement  for any  Series  or to make  any  investigation  of  matters  arising
thereunder or to institute,  conduct or defend any  litigation  thereunder or in
relation   thereto  at  the   request,   order  or   direction  of  any  of  the
Certificateholders,  unless such  Certificateholders have offered to the Trustee
reasonable  security or indemnity  against the costs,  expenses and  liabilities
which may be incurred therein or thereby. (Section 8.02)

AMENDMENT

     The Pooling Agreement and any form of credit support for each Series may be
amended by the Issuer,  the issuer of credit  support and the  Trustee,  without
Certificateholder  consent,  (i) to  cure  any  ambiguity,  (ii) to  correct  or
supplement  any  provision  therein  which  may be  inconsistent  with any other
provision therein, (iii) to make any other provisions with respect to matters or
questions  arising under such Pooling  Agreement or credit support which are not
inconsistent with the provisions of such Pooling Agreement or credit support, as
the case may be,  including  replacing such credit support (other than any Class
or Classes of subordinated  Certificates)  in whole or in part by other forms of
credit support as described herein or in the related Prospectus Supplement, (iv)
to  comply  with  any  requirements  imposed  by the  Code  or  any  regulations
thereunder,  including any requirement relating to maintaining the status of the
Trust (as defined in the related Prospectus Supplement) or applicable portion or
portions of the property  thereof as one or more REMICs,  as the case may be, or
(v) to establish a "qualified  reserve  fund" within the meaning of Code Section
860G(a)(7)(B).  The Pooling  Agreement  and any form of credit  support for each
Series may also be amended by the Issuer,  the issuer of the credit  support and
the  Trustee,  without  Certificateholder  consent,  if the Issuer  delivers  an
opinion of counsel  acceptable to the Trustee to the effect that such  amendment
will not materially  adversely  affect the interests of the  Certificateholders.
The Pooling Agreement and any form of credit support for each Series may also be
amended by the Issuer and the  Trustee  with the  consent of the  holders of not
less than  662/3% of the  Stated  Amount of the  Certificates  affected  by such
amendment for the purpose of adding any  provisions to or changing in any manner
or eliminating any of the provisions of such Pooling Agreement or form of credit
support or  modifying  in any manner  the rights of  Certificateholders  of that
Series;  provided,  however,  that (i) if any Class of  Certificates is affected
differently  in any material  respect by such  amendment than the other Classes,
the consent of the holders of 662/3% of the Stated Amount of the Certificates of
such differently affected Class shall be required and (ii) no such amendment may
(i)  decrease  in any manner the amount of, or delay the timing of,  payments or
distributions  received on Mortgage  Loans or  Mortgage  Certificates  which are
required  to be  distributed  in respect  of any such  Certificate  without  the
consent  of the  holder  of  such  Certificate  or  (ii)  reduce  the  aforesaid
percentage of Certificates,  the holders of which are required to consent to any
such amendment,  without the consent of the holders of all  Certificates of each
Affected Class then outstanding. (Section 10.01)

LIST OF CERTIFICATEHOLDERS

     If the  Trustee is not then the  Certificate  Registrar,  the  Issuer  will
provide or cause to be provided to the Trustee  within 15 days after  receipt of
its written request a list of the names and addresses of all  Certificateholders
of record of a particular  Series as of the most recent  record date for payment
of distributions to  Certificateholders  of that Series. Upon written request of
three or more  Certificateholders  of record of a Series  of  Certificates,  for
purposes of communicating  with other  Certificateholders  with respect to their
rights under the Pooling Agreement for such Series, the Trustee will afford such
Certificateholders  access  during  business  hours to the most  recent  list of
Certificateholders  of that Series held by the Trustee.  If such list is as of a
date more than 90 days prior to the date of receipt of such  Certificateholders'
request,  the Trustee shall promptly  request from the Issuer a current list and
will afford such requesting Certificateholders access to such list promptly upon
receipt. (Section 5.05)

     No Pooling  Agreement  will  provide for the holding of any annual or other
meeting of Certificateholders.

TERMINATION; REPURCHASE OF MORTGAGE LOANS AND MORTGAGE CERTIFICATES

     The  obligations  of the Issuer  and the  Trustee  created  by the  Pooling
Agreement  for each  Series  will  terminate  upon the earlier of (a) a complete
liquidation of the Pool as described in the Pooling  Agreement and (b) the later
of (i) 


                                       34
<PAGE>

the  maturity  or  other  liquidation  of the  last  Mortgage  Loan or  Mortgage
Certificate  subject thereto and the  disposition of all property  acquired upon
foreclosure  or by deed in lieu of  foreclosure  of any  such  Mortgage  Loan or
Mortgage Certificate and (ii) the payment to  Certificateholders  of that Series
of all amounts in the Certificate  Account  required to be paid to them pursuant
to such Pooling Agreement.  In no event,  however, will the trust created by any
Pooling  Agreement  continue beyond the expiration of 21 years from the death of
the last  survivor of the  descendants  of a certain  person  specified  in such
Pooling Agreement living at the date of such Pooling Agreement.  For each series
the Issuer will give or cause to be given written  notice of  termination of the
Pooling Agreement to each Certificateholder,  and the final distribution will be
made only upon surrender and the  cancellation of the  Certificates at an office
or agency of the Trustee specified in the notice of termination.  (Section 9.01)
Interest  shall not  accrue  for the  period of any  delay in the  payment  of a
Certificate  resulting from the failure of a holder to surrender the Certificate
in accordance with such notice.

     The Pooling  Agreement  for each Series may permit,  but not  require,  the
Issuer or the holders of Residual  Certificates  to repurchase from the Pool for
such  Series,  as  part of a plan  to  complete  liquidation  of the  Pool,  all
remaining Mortgage Loans and Mortgage  Certificates and all property acquired in
respect of such Mortgage Loans and Mortgage Certificates at a price equal to the
sum of (i)  100% of the  unpaid  principal  balance  of such  Mortgage  Loans or
Mortgage  Certificates on the first day of the month of repurchase (after giving
effect to payments of principal  due on such first day),  together  with accrued
interest thereon at the then applicable  Pass-Through  Rate to but not including
the  Due  Date  in the  month  in  which  the  related  distribution  is made to
Certificateholders,  in the case of a repurchase by the Issuer after subtracting
any  unreimbursed  payments  under the credit  support  for such  Series and any
unreimbursed  Voluntary Advances with respect to such Mortgage Loans (other than
such  payments or advances  with  respect to  Liquidating  Loans and interest in
excess of the  applicable  Pass-Through  Rate),  and (ii) the current  appraised
value  of  acquired  property.  The  exercise  of such  right  and  the  related
liquidation will effect early retirement of the Certificates of that Series, but
such right so to repurchase is subject to (i) the aggregate  Adjusted Balance of
the  Mortgage  Loans or  Mortgage  Certificates  for such  Series at the time of
repurchase being equal to or less than the percentage  (generally 5%), specified
in the applicable Prospectus Supplement and Pooling Agreement,  of the aggregate
Adjusted  Balance of such  Mortgage  Loans or  Mortgage  Certificates  as of the
Cut-Off Date for that Series and (ii) such repurchase and related  distributions
(X)  constituting a "qualified  liquidation"  within the meaning of Code Section
860F(a)(4)(A), (Y) not adversely affecting the REMIC status of each Pool and (Z)
not  otherwise  causing each such Pool to be subject to tax for the taxable year
in which the repurchase occurs or any prior taxable year. (Section 9.01)

DUTIES OF THE TRUSTEE

     The Trustee makes no  representations  as to the validity or sufficiency of
the Pooling  Agreement,  the  Certificates  or of any Mortgage  Loan or Mortgage
Certificate  or  related  document,  and  is  not  accountable  for  the  use or
application  by  the  Issuer  of  any  funds  paid  to  it  in  respect  of  the
Certificates, the Mortgage Loans or the Mortgage Certificates, or deposited into
or  withdrawn  from the  Certificate  Account  or the  Servicing  Account by the
Issuer.  The Trustee shall have no liability for any losses incurred as a result
of (i) any failure of each Pool to qualify as a REMIC  under the Code,  (ii) any
termination, inadvertent or otherwise, of each Pool's status as a REMIC or (iii)
any  "prohibited  transaction"  as defined in Code Section  860F(a)  unless such
losses  were as a result of the  Trustee's  negligence,  bad faith or failure to
perform its duties under the Pooling  Agreement.  (Section  8.03) If no Event of
Default has  occurred,  the Trustee is  required  to perform  only those  duties
specifically  required of it under the Pooling Agreement.  However, upon receipt
of the  various  certificates,  reports  or  other  instruments  required  to be
furnished to it, the Trustee is required to examine  them to  determine  whether
they conform to the requirements of the Pooling Agreement. (Section 8.01)

THE TRUSTEE

     The identity of the commercial bank,  savings and loan association or trust
company named as the Trustee for each Series of  Certificates  will be set forth
in the applicable Prospectus  Supplement.  The commercial bank, savings and loan
association  or  trust  company  serving  as  Trustee  may have  normal  banking
relationships with the Issuer or the Originators.  In addition,  for the purpose
of meeting the legal requirements of certain local jurisdictions, the Issuer and
the  Trustee  acting  jointly  shall  have the power to appoint  co-trustees  or
separate trustees of all or any part of the Pool relating to a particular Series
of Certificates.  In the event of such appointment,  all rights,  powers, duties
and obligations  conferred or imposed upon the Trustee by the Pooling  Agreement
relating to such Series  shall be 


                                       35
<PAGE>

conferred  or  imposed  upon the  Trustee  and each  such  separate  trustee  or
co-trustee  jointly,  or,  in any  jurisdiction  in which the  Trustee  shall be
incompetent or unqualified  to perform  certain acts,  singly upon such separate
trustee or co-trustee who shall exercise and perform such rights, powers, duties
and  obligations  solely at the  direction  of the Trustee.  (Section  8.10) The
Trustee  may  also  appoint  agents  (which  may  include  the  Issuer  and  its
affiliates) to perform any of the responsibilities of the Trustee,  which agents
shall  have any or all of the  rights,  powers,  duties and  obligations  of the
Trustee conferred on them by such  appointment,  provided that the Trustee shall
continue  to be  responsible  for its duties and  obligations  under the Pooling
Agreement.

     The  Trustee  may resign at any time,  in which  event the  Issuer  will be
obligated to appoint a successor Trustee. The Trustee may also be removed at any
time (i) by the Issuer,  (a) if the Trustee ceases to be eligible to continue as
such under the Pooling Agreement or if the Trustee becomes insolvent, (b) if the
Trustee breaches any of its duties under the Pooling  Agreement which materially
adversely  affects the  Certificateholders,  (c) if through the  performance  or
non-performance  of certain  actions by the Trustee,  the rating assigned to the
CitiCertificates  would be lowered or (d) if the credit rating of the Trustee is
downgraded  to a  level  which  would  result  in  the  rating  assigned  to the
CitiCertificates to be lowered or (ii) by the holders of Certificates evidencing
more than 50% of the current Stated Amount of CitiCertificates  then outstanding
and 50% of the Percentage Interests of the Residual Certificates.  Upon becoming
aware of such circumstances, the Issuer will be obligated to appoint a successor
Trustee.  Any  resignation  or  removal  of the  Trustee  and  appointment  of a
successor  Trustee will not become effective until acceptance of the appointment
by the successor Trustee. (Section 8.07)

                              ERISA CONSIDERATIONS

     The Employee  Retirement Income Security Act of 1974, as amended ("ERISA"),
imposes certain requirements on those employee benefit plans to which it applies
("Plans") and on those persons who are  fiduciaries  with respect to such Plans.
In accordance with ERISA's general  fiduciary  standards,  before investing in a
Certificate  a Plan  fiduciary  should  determine  whether such an investment is
permitted  under the governing Plan  instruments and is appropriate for the Plan
in view of its overall investment policy and the composition and diversification
of its  portfolio.  Other  provisions  of ERISA  and the Code  prohibit  certain
transactions  involving  the  assets  of a Plan and  persons  who  have  certain
specified relationships to the Plan ("parties in interest" within the meaning of
ERISA or  "disqualified  persons" within the meaning of the Code).  Thus, a Plan
fiduciary considering an investment in Certificates should also consider whether
such an investment  might  constitute  or give rise to a prohibited  transaction
under ERISA or the Code. For purposes of the discussion,  a person  investing on
behalf of an individual  retirement  account  established under Code Section 408
(an "IRA") would be regarded as a fiduciary and the IRA as a Plan.

     An investment in  Certificates  by a Plan might result in the assets of the
related Pool being deemed to constitute  in whole or in part Plan assets,  which
in turn  might  mean  that the Plan  fiduciary  who  decided  to  invest  in the
Certificates  had delegated asset  management  responsibility,  and that certain
underlying  aspects of such  investment,  including  the operation of such Pool,
might be deemed prohibited  transactions under ERISA and the Code. Neither ERISA
nor the Code defines "plan  assets." The U.S.  Department of Labor has published
regulations (the "Regulations")  concerning whether or not a Plan's assets would
be deemed to include an interest in the underlying  assets of an entity (such as
a  Pool)  for  purposes  of  certain   reporting,   disclosure   and   fiduciary
responsibility  requirements,  including the prohibited  transaction  provisions
found in ERISA and the Code, if the Plan  acquires an "equity  interest" in such
entity (such as by acquiring Certificates). The Issuer cannot predict in advance
whether under the rules set forth in the Regulations an investing  Plan's assets
would be deemed to  include  an  interest  in the  assets of a Pool or be deemed
merely to include  its  interest  in the  Certificates,  because of the  factual
nature of certain of these rules.  For example,  the Regulations  state that the
underlying  assets  of an  entity  will  not be  considered  "plan  assets"  if,
immediately  after the most  recent  acquisition  of any equity  interest in the
entity,  whether or not from the issuer or an underwriter,  less than 25% of the
value of each class of equity  interest  is held by  "benefit  plan  investors,"
which are defined as Plans,  IRAs,  and  employee  benefit  plans not subject to
ERISA (for example, governmental plans).

     The Regulations provide that if a Plan acquires a "guaranteed  governmental
mortgage pool  certificate,"  the Plan's assets include such  certificate but do
not include any of the mortgages  underlying such  certificate.  The Regulations
include  in  the  definition  of  a  "guaranteed   governmental   mortgage  pool
certificate"  the  types  of  FHLMC  Certificates,  GNMA  Certificates  and FNMA
Certificates   which  may  be  included  in  a  Pool   underlying  a  Series  of
Certificates. Accordingly, even if such Mortgage Certificates included in a Pool
were deemed to be in whole or in part assets of Plan  investors,  the  mortgages
underlying  such  Mortgage  Certificates  would not be treated as assets of such

                                       36
<PAGE>

Plans and the operation of the pools containing such underlying  mortgages would
not give rise to prohibited transactions.

     U.S.  Department of Labor Prohibited  Transaction  Class Exemption 83-1 for
Certain  Transactions  Involving  Mortgage Pool  Investment  Trusts ("PTE 83-1")
exempts certain transactions involving the creation, maintenance and termination
of certain residential mortgage pools and the direct or indirect acquisition and
holding of certain residential mortgage pool pass-through certificates by Plans,
from treatment as potential prohibited  transactions,  whether or not the Plan's
assets would be deemed to include an ownership  interest in the mortgages in the
mortgage  pool,  and  whether  or  not  such  transactions  would  otherwise  be
prohibited  under ERISA.  PTE 83-1 sets forth certain  "general  conditions" and
"specific  conditions"  to its  applicability.  The  Issuer  believes  that such
"general  conditions"  set  forth in  Section  II of PTE 83-1  would be met with
respect to the purchase and holding of Senior Certificates  evidencing ownership
interests in a Pool consisting of Real Estate Loans.

     It appears  that PTE 83-1 might not apply to the  purchase  and  holding of
Senior  Certificates  evidencing  ownership  interests in a Pool  consisting  of
Cooperative Loans as well as Real Estate Loans, of Certificates which constitute
Residual Certificates,  or of Senior Certificates which do not pass through both
principal and interest.

     It is not clear whether PTE 83-1 applies to Senior Certificates  evidencing
an interest in a Pool of Mortgage  Certificates as opposed to Real Estate Loans;
when  offering  a Series of such  Certificates,  if it  appears  no other  ERISA
prohibited  transaction  exemption  is  applicable,  the Issuer  intends to only
include  in a Pool  Mortgage  Certificates  which are  "guaranteed  governmental
mortgage pool  certificates,"  or Mortgage  Certificates  which themselves would
meet  the  general  conditions  of PTE  83-1 if  purchased  directly  by a Plan.
Further, in such circumstances,  the Issuer intends to structure the offering of
any such Series of Certificates  and the operations of the Pool and to take such
other actions as are both reasonable and appropriate so as to reduce the risk of
the  occurrence  of  ERISA  prohibited  transactions  should  PTE  83-1  be held
inapplicable to the acquisition and holding of such Certificates.

     Several  underwriters  of  mortgage-backed  securities have applied for and
obtained  ERISA  prohibited  transaction  exemptions  which are in some respects
broader  than  PTE  83-1.  Such  exemptions  can only  apply to  mortgage-backed
securities which,  among other conditions,  are sold in an offering with respect
to which such underwriter serves as the sole or a managing underwriter,  or as a
selling or placement agent.  Several other underwriters have applied for similar
exemptions.   If  such  an  exemption   might  be  applicable  to  a  Series  of
Certificates, the related Prospectus Supplement will refer to such possibility.

     In  view of the  foregoing,  before  purchasing  any  Certificates,  a Plan
fiduciary should consult with its counsel and determine whether PTE 83-1 applies
to the creation, maintenance and termination of the Pool and the acquisition and
holding  of  the  Certificates,  including  whether  the  appropriate  "specific
conditions"  set  forth  in  Section  I of PTE  83-1  as  well  as the  "general
conditions"  of  Section  II would be met,  and should  consult  the  applicable
Prospectus Supplement relating to such Series of Certificates,  especially,  but
not only, the ERISA discussion, if any. If it is unclear to a Plan fiduciary and
its  counsel  that PTE 83-1  would  apply to the  purchase  and  holding  of the
Certificates,  because,  for example,  the Pool includes Mortgage  Certificates,
such   fiduciary  and  its  counsel  should   consider   whether  such  Mortgage
Certificates are "guaranteed  governmental mortgage pool certificates,"  whether
in such  case PTE 83-1  would be  applicable  to the  indirect  acquisition  and
holding of the  Mortgage  Certificates,  and whether any other ERISA  prohibited
transaction exemption is applicable or necessary.

     Certain  affiliates  of the Issuer,  such as Citicorp,  might be considered
"parties in interest" or  "disqualified  persons" with respect to a Plan. If so,
special  caution ought to be exercised  before a Plan purchases a Certificate in
such circumstances.  Certificates may not be purchased with the assets of a Plan
if an  affiliate  of the  Issuer or of the  Trustee  of a Pool  either:  (a) has
investment  discretion  with respect to the  investment of such assets;  (b) has
authority or responsibility to give, or regularly gives,  investment advice with
respect to such assets for a fee and pursuant to an  agreement or  understanding
that such advice will serve as a primary  basis for  investment  decisions  with
respect to such  assets  and that such  advice  will be based on the  particular
investment needs of the Plan; or (c) is an employer  maintaining or contributing
to such Plan. By agreeing to acquire a Certificate  for a Plan, the fiduciary of
any such Plan is  representing  and warranting to the Underwriter and the Issuer
that the assets of the Plan to be used in  connection  with such purchase do not
come within (a), (b) or (c) above.

     A governmental  plan as defined in Section 3(32) of ERISA is not subject to
ERISA, or Code Section 4975. However, such a governmental plan may be subject to
a federal,  state, or local law, which is, to a material extent,  similar to the
provisions  of ERISA of Code  Section  4975  ("Similar  Law").  A fiduciary of a
governmental  plan should make its own  determination as to the need for and the
availability of any exemptive relief under Similar Law.


                                       37
<PAGE>

     The purchase of a Residual  Certificate  by most  varieties of ERISA Plans,
governmental  plans,  and certain  church plans (as defined in section  3(33) of
ERISA) may give rise to "unrelated business taxable income" as described in Code
Sections  511-515  and  860E.  Further,   prior  to  the  purchase  of  Residual
Certificates, a prospective purchaser may be required to provide an affidavit to
a transferor that it is not a "disqualified organization," which term as defined
herein  includes  certain  tax-exempt  entities not subject to Code Section 511,
including  certain  governmental  plans,  as discussed  herein under the caption
"Certain    Federal   Income   Tax    Consequences--    Taxation   of   Residual
Certificates--Tax-Related     Restrictions     on     Transfer    of    Residual
Certificates--Disqualified Organizations."

     Due to the complexity of the foregoing rules and the penalties imposed upon
persons involved in prohibited  transactions,  it is particularly important that
potential Plan investors  consult with their counsel  regarding the consequences
under ERISA of their acquisition and ownership of Certificates. Unless otherwise
specified  in the related  Prospectus  Supplement,  no assets of a Plan which is
subject to ERISA may be invested in Subordinated Certificates.

                                LEGAL INVESTMENT

     The Senior  Certificates,  and if so  specified  in the related  Prospectus
Supplement,  the Subordinated  Certificates and the Residual  Certificates  will
constitute  "mortgage related securities" for purposes of the Secondary Mortgage
Market  Enhancement Act of 1984, as amended (the "Enhancement  Act"), so long as
they are  rated in one of the two  highest  rating  categories  by at least  one
nationally  recognized  statistical  rating  organization.  As "mortgage related
securities," they will be legal investments for persons,  trusts,  corporations,
partnerships,  associations,  business trusts and business entities  (including,
but not limited to, state-chartered savings banks, commercial banks, savings and
loan  associations  and  insurance  companies,  as well as  trustees  and  state
government  employee  retirement  systems) 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 that, under applicable law,  obligations issued by
or guaranteed as to principal and interest by the United States or any agency or
instrumentality thereof constitute legal investments for such entities. Pursuant
to the Enhancement Act, a number of States enacted  legislation on or before the
October 3, 1991  cutoff for such  enactments,  limiting  to varying  extents the
ability of certain  entities (in particular,  insurance  companies) to invest in
"mortgage related securities," in most cases by requiring the affected investors
to  rely  solely  upon  existing  state  law,  and  not  the  Enhancement   Act.
Accordingly,  the investors  affected by such  legislation will be authorized to
invest in the Senior Certificates, and if so specified in the related Prospectus
Supplement, the Subordinated Certificates and the Residual Certificates, only to
the extent provided in such legislation.

     The  Enhancement  Act  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
mortgage  related  securities  without  limitation as to the percentage of their
assets represented thereby, federal credit unions may invest in mortgage related
securities,  and national  banks may purchase  mortgage  related  securities for
their own account  without  regard to the  limitations  generally  applicable to
investment  securities set forth in 12 U.S.C.  Section 24 (Seventh),  subject in
each case to such regulations as the applicable federal regulatory authority may
prescribe.  In this  connection,  the Office of the  Comptroller of the Currency
(the "OCC") has amended 12 C.F.R. Part 1 to authorize national banks to purchase
and sell for their own account,  without  limitation  as to a percentage  of the
bank's  capital and surplus (but  subject to  compliance  with  certain  general
standards  concerning "safety and soundness" and retention of credit information
in 12 C.F.R.  (ss.) 1.5),  certain  "Type IV  securities,"  defined in 12 C.F.R.
(ss.) 1.2(1) to include certain "residential mortgage-related securities." As so
defined,  "residential  mortgage-related  security"  means,  in  relevant  part,
"mortgage  related  security" within the meaning of the Enhancement Act. Federal
credit unions should review  National Credit Union  Administration  (the "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.  The NCUA has adopted rules, codified
as 12 C.F.R.  Section  703.5(f)-(k),  which prohibit  federal credit unions from
investing in certain mortgage related securities  (including  securities such as
certain  Series,  Classes or Subclasses of  Certificates),  except under limited
circumstances.  However,  effective  January 1, 1998,  the NCUA has  amended its
rules governing  investments by federal credit unions at 12 C.F.R. Part 703; the
revised rules will permit  investments in "mortgage  related  securities"  under
certain  limited  circumstances,  but  will  prohibit  investments  in  stripped
mortgage  related   securities  and  residual   interests  in  mortgage  

                                       38
<PAGE>


related  securities,  unless the credit union has obtained written approval from
the NCUA to participate in the "investment pilot program" described in 12 C.F.R.
(ss.) 703.140.

     All depository  institutions  considering an investment in the Certificates
should  review  the  Federal  Financial   Institutions   Examination   Council's
"Supervisory Policy Statement on Securities  Activities" dated January 28, 1992,
as revised April 15, 1994 (the "Policy Statement").  The Policy Statement, which
has been adopted by the Board of Governors of the Federal  Reserve  System,  the
FDIC,  the  OCC  and  the OTS  and by the  NCUA  (with  certain  modifications),
prohibits depository  institutions from investing in certain "high-risk mortgage
securities"  (including securities such as certain Series, Classes or Subclasses
of  Certificates),  except under limited  circumstances,  and sets forth certain
investment practices deemed to be unsuitable for regulated institutions.

     Institutions  whose  investment  activities  are subject to  regulation  by
federal or state  authorities  should  review  rules,  policies  and  guidelines
adopted  from  time to time by such  authorities  before  purchasing  any of the
Certificates,  as certain Series, Classes or Subclasses may be deemed unsuitable
investments,  or may  otherwise  be  restricted,  under such rules,  policies or
guidelines (in certain instances irrespective of the Enhancement Act).

     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, provisions which
may   restrict   or   prohibit   investment   in   securities   which   are  not
"interest-bearing"  or  "income-paying,"  and,  with regard to any  Certificates
issued in book-entry form, provisions which may restrict or prohibit investments
in securities which are issued in book-entry form.

     Except as to the status of Certificates as "mortgage  related  securities,"
no representation is made as to the proper  characterization of the Certificates
for legal investment purposes,  financial  institution  regulatory purposes,  or
other  purposes,  or as to the  ability  of  particular  investors  to  purchase
Certificates under applicable legal investment  restrictions.  The uncertainties
described  above (and any unfavorable  future  determinations  concerning  legal
investment  or  financial   institution   regulatory   characteristics   of  the
Certificates) may adversely affect the liquidity of the Certificates.

     Investors  should  consult  with their own legal  advisors  in  determining
whether and to what extent the  Certificates  constitute  legal  investments for
such investors.

                     CERTAIN FEDERAL INCOME TAX CONSEQUENCES

GENERAL

     The following is a general  discussion of the anticipated  material federal
income  tax   consequences  of  the  purchase,   ownership  and  disposition  of
CitiCertificates  and  Residual  Certificates.  The  discussion  below  does not
purport to address all federal income tax consequences that may be applicable to
particular  categories  of  investors,  some of which may be  subject to special
rules.  The  authorities on which this discussion is based are subject to change
or differing interpretations,  and any such change or interpretation could apply
retroactively. The discussion reflects the applicable provisions of the Code, as
well as regulations (the "REMIC Regulations") promulgated by the U.S. Department
of the Treasury.  Investors should consult their own tax advisors in determining
the  federal,  state,  local,  and any  other  tax  consequences  to them of the
purchase,   ownership  and   disposition   of   CitiCertificates   and  Residual
Certificates.   For   purposes   of   this   tax   discussion,   references   to
"Certificateholder"  or  "holder"  generally  mean  the  beneficial  owner  of a
CitiCertificate or Residual Certificate.

     With respect to each Series of CitiCertificates and Residual  Certificates,
an election  will be made to treat the related  Trust or one or more  segregated
pools of assets therein as one or more REMICs within the meaning of Code Section
860D.  If an  election is made to treat one or more  segregated  pools of assets
within the Trust  property as a REMIC,  references to the "Trust" or the "REMIC"
herein  shall be  deemed  to refer to such  portion  or  portions  of the  Trust
property.   An  election   may  also  be  made  to  treat  the  trust  in  which
CitiMortgageCertificates  with  respect  to  a  Series  represent  an  undivided
interest as a REMIC.  Qualification as a REMIC requires ongoing  compliance with
certain conditions. With respect to each Series of CitiCertificates and Residual
Certificates (and, if applicable, CitiMortgageCertificates),  Rona Daniels, Vice
President and Tax Counsel of Citibank,  N.A., has advised the Issuer that in her
opinion,  assuming (i) the making of an appropriate  election,  (ii)  compliance
with the Pooling  Agreement,  and (iii)  compliance with any changes in the law,
including  any  amendments  to  the  Code  or  applicable  Treasury  


                                       39
<PAGE>

regulations thereunder, the Trust (and, if applicable, the trust relating to the
CitiMortgageCertificates)   will  qualify  as  a  REMIC.   In  such  case,   the
CitiCertificates  will be considered to be "regular  interests" in the REMIC and
generally will be taxed as if they were newly originated debt  instruments,  and
the Residual  Certificates will be considered to be "residual  interests" in the
REMIC. The Prospectus  Supplement for each Series of Certificates  will indicate
whether more than one REMIC  election  with respect to the property  included in
the related Trust will be made.

STATUS OF CITICERTIFICATES AND RESIDUAL CERTIFICATES

     Certificates  held  by  a  domestic  building  and  loan  association  will
constitute  "a regular or residual  interest  in a REMIC"  within the meaning of
Code Section  7701(a)(19)(C)(xi)  in the same  proportion that the assets of the
REMIC would be treated as "loans . . . secured by an  interest in real  property
which is . . .  residential  real  property"  within the meaning of Code Section
7701(a)(19)(C)(v)  or as other assets described in Code Section  7701(a)(19)(C).
Certificates held by a real estate investment trust will constitute "real estate
assets"  within the meaning of Code  Section  856(c)(4)(A),  and interest on the
CitiCertificates  and income  with  respect  to  Residual  Certificates  will be
considered  "interest on obligations secured by mortgages on real property or on
interests in real property"  within the meaning of Code Section  856(c)(3)(B) in
the same proportion that, for both purposes,  the assets and income of the REMIC
would be so  treated.  If at all  times  95% or more of the  assets of the REMIC
qualify for any of the foregoing  treatments,  the Certificates will qualify for
the  corresponding  status  in  their  entirety.  It  is  anticipated  that  the
Certificates  will qualify for the foregoing  treatments in their entirety.  For
purposes of Code Section 856(c)(4)(A), payments of principal and interest on the
Mortgage  Loans  that  are  reinvested   pending   distribution  to  holders  of
Certificates qualify for such treatment. Where two REMICs are a part of a tiered
structure they will be treated as one REMIC for purposes of the tests  described
above respecting  asset ownership of more or less than 95%. In addition,  if the
assets of the REMIC  include  Buydown  Mortgage  Loans,  it is possible that the
percentage  of such assets  constituting  "loans . . . secured by an interest in
real property" for purposes of Code Section 7701(a)(19)(C)(v) may be required to
be reduced by the amount of the related buydown subsidy  accounts.  Certificates
held  by  a  regulated  investment  company  will  not  constitute   "Government
securities"  within the meaning of Code  Section  851(b)(4)(A)(i).  Certificates
held  by  certain   financial   institutions   will   constitute   "evidence  of
indebtedness"  within the meaning of Code Section 582(c)(1).  The Small Business
Job Protection Act of 1996 (the "SBJPA of 1996") repealed the reserve method for
bad debts of domestic  building and loan  associations and mutual savings banks,
and thus has eliminated the asset category of "qualifying  real property  loans"
in former Code Section  593(d) for taxable years  beginning  after  December 31,
1995.  The  requirement  in the  SBJPA  of  1996  that  such  institutions  must
"recapture"  a portion of their  existing  bad debt  reserves is  suspended if a
certain portion of their assets are maintained in "residential loans" under Code
Section  7701(a)(19)(C)(v),  but  only  if such  loans  were  made  to  acquire,
construct  or improve  the  related  real  property  and not for the  purpose of
refinancing.  However,  no effort  will be made to  identify  the portion of the
Mortgage Loans of any Series meeting this requirement,  and no representation is
made in this regard.

QUALIFICATION AS A REMIC

     In  order  for the  Trust to  qualify  as a REMIC,  there  must be  ongoing
compliance on the part of the Trust with the requirements set forth in the Code.
First,  the Trust must fulfill an asset test, which requires that no more than a
de  minimis  portion  of the  assets  of the Trust (as of the close of the third
calendar month beginning after the Startup Day and at all times  thereafter) may
consist of assets other than "qualified mortgages" and "permitted  investments."
The REMIC  Regulations  provide a safe  harbor  pursuant to which the de minimis
requirement  will be met if, at all times,  the aggregate  adjusted basis of the
nonqualified  assets is less than 1% of the aggregate  adjusted basis of all the
Trust's  assets.  An entity that fails to meet the safe harbor may  nevertheless
demonstrate  that it holds no more  than a de  minimis  amount  of  nonqualified
assets.  A REMIC  must also  adopt  "reasonable  arrangements"  to  prevent  its
residual  interests  from being held by  "disqualified  organizations"  and must
furnish applicable tax information to transferors that violate this requirement.
See "--Taxation of Residual  Certificates--Tax-Related  Restrictions on Transfer
of Residual Certificates--Disqualified Organizations" below.

     A qualified  mortgage is any obligation  that is principally  secured by an
interest in real  property  and that is either  transferred  to the REMIC on the
Startup Day or is purchased by the REMIC within a three-month  period thereafter
pursuant to a fixed  price  contract  in effect on the  Startup  Day.  Qualified
mortgages   include  whole   mortgage  loans  or  stripped   portions   thereof,
certificates  of  beneficial  ownership in a grantor  trust that holds  mortgage
loans,  such as the  Mortgage  Certificates,  and regular  interests  in another
REMIC, such as Mortgage Certificates in a trust as to which a REMIC election has
been  made.  The REMIC  Regulations  specify  that loans  secured  by  timeshare
interests  and shares  


                                       40
<PAGE>

held  by a  tenant  stockholder  in a  cooperative  housing  corporation  can be
qualified  mortgages.  A qualified  mortgage  includes a  qualified  replacement
mortgage,  which is any  property  that would have been  treated as a  qualified
mortgage  if it were  transferred  to the REMIC on the  Startup  Day and that is
received either (i) in exchange for any qualified  mortgage within a three-month
period  thereafter,  or (ii) in exchange for a "defective  obligation"  within a
two-year period thereafter.  A "defective obligation" includes (i) a mortgage in
default or as to which default is reasonably foreseeable,  (ii) a mortgage as to
which a customary representation or warranty made at the time of transfer to the
REMIC has been breached,  (iii) a mortgage that was fraudulently procured by the
mortgagor,  and (iv) a mortgage that was not in fact principally secured by real
property (but only if such mortgage is disposed of within 90 days of discovery).
A Mortgage Loan that is "defective" as described in clause (iv) that is not sold
or,  if  within  two  years of the  Startup  Day,  exchanged  within  90 days of
discovery, ceases to be a qualified mortgage after such 90 day period.

     Permitted  investments  include cash flow  investments,  qualified  reserve
assets,  and  foreclosure  property.  A cash flow  investment is an  investment,
earning a return in the  nature of  interest,  of  amounts  received  on or with
respect to qualified  mortgages for a temporary period,  not exceeding  thirteen
months,  until the next  scheduled  distribution  to holders of interests in the
REMIC. A qualified reserve asset is any intangible  property held for investment
that is part of any  reasonably  required  reserve  maintained  by the  REMIC to
provide for payments of expenses of the REMIC or to provide additional  security
for  payments due on the regular or residual  interests  that  otherwise  may be
delayed or defaulted  upon because of a default or  delinquency on the qualified
mortgages,  lower  than  expected  reinvestment  returns,   prepayment  interest
shortfalls   and  certain  other   contingencies.   The  reserve  fund  will  be
disqualified  if more than 30% of the gross  income from the assets in such fund
for the year is derived from the sale or other  disposition of property held for
less than three  months,  unless  required  to prevent a default on the  regular
interests caused by a default on one or more qualified mortgages. A reserve fund
must be reduced  "promptly and  appropriately" as payments on the Mortgage Loans
are received.  Foreclosure  property is real  property  acquired by the REMIC in
connection  with the default or imminent  default of a  qualified  mortgage  and
generally  not held beyond the close of the third  calendar  year  following the
year of acquisition,  with a possible  extension granted by the Internal Revenue
Service.

     In addition to the foregoing requirements, the various interests in a REMIC
also must meet  certain  requirements.  All of the  interests in a REMIC must be
either of the following:  (i) one or more classes of regular interests or (ii) a
single class of residual interests on which distributions,  if any, are made pro
rata. A regular interest is an interest in a REMIC that is issued on the Startup
Day with fixed terms, is designated as a regular interest,  and  unconditionally
entitles the holder to receive a specified  principal  amount (or other  similar
amount), and provides that interest payments (or other similar amounts), if any,
at or before  maturity  either are payable  based on a fixed rate or a qualified
variable  rate,  or consist of a specified,  nonvarying  portion of the interest
payments on qualified mortgages. Such a specified portion may consist of a fixed
number  of  basis  points,  a fixed  percentage  of the  total  interest  or the
difference  between  fixed and  qualified  variable  rates on some or all of the
qualified  mortgages.  The specified principal amount of a regular interest that
provides for interest payments consisting of a specified,  nonvarying portion of
interest payments on qualified  mortgages may be zero. A residual interest is an
interest in a REMIC other than a regular  interest that is issued on the Startup
Day and is  designated  as a residual  interest.  An  interest in a REMIC may be
treated as a regular interest even if payments of principal with respect to such
interest are subordinated to payments on other regular interests or the residual
interest  in the  REMIC,  and  are  dependent  on the  absence  of  defaults  or
delinquencies  on  qualified  mortgages  or  permitted  investments,  lower than
reasonably  expected returns on permitted  investments,  unanticipated  expenses
incurred  by the  REMIC or  prepayment  interest  shortfalls.  Accordingly,  the
CitiCertificates  of a Series  will  constitute  one or more  classes of regular
interests, and the Residual Certificates of that Series will constitute a single
class of residual interests on which distributions are made pro rata.

     If an entity,  such as the Trust,  fails to comply  with one or more of the
ongoing  requirements  of the Code for REMIC status during any taxable year, the
Code  provides  that the entity will not be treated as a REMIC for such year and
thereafter.  In this  event,  an  entity  with  multiple  classes  of  ownership
interests  may be  treated as a separate  association  taxable as a  corporation
under Treasury  regulations,  and the  CitiCertificates may be treated as equity
interests  therein.  The  Code  authorizes  the  Treasury  Department  to  issue
regulations  that address  situations  where  failure to meet one or more of the
requirements  for REMIC  status  occurs  inadvertently  and in good  faith,  and
disqualification  of the REMIC would occur absent regulatory  relief.  Investors
should be aware, however, that the Conference Committee Report to the Tax Reform
Act of 1986  (the  "1986  Act")  indicates  that the  regulatory  relief


                                       41
<PAGE>

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 of time in which the
requirements for REMIC status are not satisfied.

TAXATION OF CITICERTIFICATES

  General

     In general,  interest,  original issue  discount,  and market discount on a
CitiCertificate will be treated as ordinary income to a  Certificateholder,  and
distributions in reduction of Stated Amount of a CitiCertificate will be treated
as a return of  capital to the  extent of the  Certificateholder's  basis in the
CitiCertificate.   Each   Certificateholder  must  use  the  accrual  method  of
accounting  with  regard  to  CitiCertificates,  regardless  of  the  method  of
accounting otherwise used by such Certificateholder.

  Original Issue Discount

     All Accrual  CitiCertificates  will be, and certain of the CitiCertificates
of other  Classes of a Series may be,  issued  with  "original  issue  discount"
within  the  meaning  of  Code  Section   1273(a).   Holders  of  any  Class  of
CitiCertificates  having original issue discount generally must include original
issue discount in ordinary income for federal income tax purposes as it accrues,
in  accordance  with a  constant  yield  method  that  takes  into  account  the
compounding of interest,  in advance of receipt of the cash attributable to such
income.  The  following  discussion  is based  in part on  temporary  and  final
Treasury  regulations  issued on February 2, 1994,  as amended on April 14, 1996
(the "OID  Regulations")  under Code  Sections 1271 through 1273 and 1275 and in
part on the provisions of the 1986 Act.  Holders of  CitiCertificates  should be
aware,  however,  that the OID  Regulations  do not adequately  address  certain
issues relevant to prepayable securities,  such as the CitiCertificates.  To the
extent such issues are not addressed in such regulations,  the Issuer intends to
apply the methodology  described in the Conference  Committee Report to the 1986
Act. No assurance  can be provided  that the Internal  Revenue  Service will not
take a different position as to those matters not currently addressed by the OID
Regulations.  Moreover,  the OID Regulations include an anti-abuse rule allowing
the Internal  Revenue Service to apply or depart from the OID Regulations  where
necessary  or  appropriate  to ensure a  reasonable  tax  result in light of the
applicable   statutory   provisions.   A  tax  result  will  not  be  considered
unreasonable under the anti-abuse rule in the absence of a substantial effect on
the  present  value of a  taxpayer's  tax  liability.  Investors  are advised to
consult their own tax advisors as to the discussion  herein and the  appropriate
method for reporting  interest and original  issue  discount with respect to the
CitiCertificates.

     Each CitiCertificate  (except to the extent described below with respect to
a CitiCertificate on which  distributions in reduction of Stated Amount are made
in a single installment by lots of a specified Stated Amount upon the request of
a Certificateholder or by random lot (a "Retail Class CitiCertificate")) will be
treated as a single  installment  obligation  for  purposes of  determining  the
original issue discount  includible in a  Certificateholder's  income. The total
amount of  original  issue  discount on a  CitiCertificate  is the excess of the
"stated  redemption  price at maturity" of the  CitiCertificate  over its "issue
price." The issue price of a Class of  CitiCertificates  generally  is the first
price at which a substantial amount of CitiCertificates of such Class is sold to
the public (excluding bond houses,  brokers and underwriters).  Although unclear
under the OID  Regulations,  the Issuer  intends  to treat the issue  price of a
Class as to which there is no  substantial  sale as of the issue date or that is
retained  by the Issuer as the fair  market  value of that Class as of the issue
date. The issue price of a CitiCertificate  also includes any amount paid by the
initial Certificateholder for accrued interest that relates to a period prior to
the issue date of the CitiCertificate,  unless the CitiCertificateholder  elects
on its federal income tax return to exclude such amount from the issue price and
to recover it on the first  Distribution  Date. The stated  redemption  price at
maturity of a  CitiCertificate  always  includes its Initial Stated Amount.  The
stated redemption price at maturity generally will not include  distributions of
interest if such interest distributions  constitute "qualified stated interest."
Under the OID Regulations,  qualified  stated interest  generally means interest
payable  at a single  fixed  rate or a  qualified  variable  rate (as  described
below),   provided  that  such  interest   distributions   are   unconditionally
distributable  at  intervals  of one year or less  during the entire term of the
CitiCertificates.  Because there is no penalty or default  remedy in the case of
nonpayment of interest with respect to a CitiCertificate, it is possible that no
interest on any Class of  CitiCertificates  will be treated as qualified  stated
interest. However, except as provided in the following three sentences or in the
applicable Prospectus Supplement,  because the underlying Mortgage Loans provide
for remedies in the event of default,  the Issuer intends to treat interest with
respect to the  CitiCertificates as qualified stated interest.  No distributions
on an Accrual  CitiCertificate,  or on other  CitiCertificates  with  respect to
which  interest  distributions  may be deferred and added to the Stated  Amount,
will  


                                       42
<PAGE>

constitute  qualified stated interest and,  accordingly,  the stated  redemption
price at  maturity  of such  CitiCertificates  includes  not only their  Initial
Stated Amount but also all other distributions  (whether  denominated as accrued
interest or current  interest)  to be  received  thereon.  Likewise,  the Issuer
intends  to treat an  "interest  only"  class  or a class on which  interest  is
substantially   disproportionate   to  its   principal   amount   (a   so-called
"super-premium"  class)  as  having  no  qualified  stated  interest.  Where the
interval  between  the  issue  date  and  the  first   Distribution  Date  on  a
CitiCertificate  is shorter than the interval  between  subsequent  Distribution
Dates, the interest  attributable to the additional days will be included in the
stated redemption price at maturity.

     Under a de minimis rule, original issue discount on a CitiCertificate  will
be considered to be zero if such original  issue  discount is less than 0.25% of
the stated redemption price at maturity of the CitiCertificate multiplied by the
weighted average maturity of the CitiCertificate. For this purpose, the weighted
average  maturity of the  CitiCertificate  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  return of stated  redemption  price at
maturity is  scheduled to be made by a fraction,  the  numerator of which is the
amount of each return of stated redemption price at maturity and the denominator
of which is the stated redemption price at maturity of the CitiCertificate.  The
Conference  Committee  Report to the 1986 Act provides that the schedule of such
distributions  should be  determined  in  accordance  with the  assumed  rate of
prepayment of the Mortgage Loans and Mortgage Certificates included in the Trust
(the  "Prepayment  Assumption") and the anticipated  reinvestment  rate, if any,
used in pricing the CitiCertificates.  The Prepayment Assumption with respect to
a  Series  of  CitiCertificates  will be set  forth  in the  related  Prospectus
Supplement.  Holders  of  CitiCertificates  generally  must  report  de  minimis
original issue discount pro rata as distributions of stated  redemption price at
maturity   are   received,   and  such  income  will  be  capital  gain  if  the
CitiCertificate is held as a capital asset. However, holders of CitiCertificates
may elect to accrue all de minimis  original issue  discount,  as well as market
discount and market premium, under the constant yield method. See "--Election to
Treat All Interest Under the Constant Yield Method" below.

     A holder of a  CitiCertificate  generally  must include in gross income for
any  taxable  year the sum of the "daily  portions",  as defined  below,  of the
original issue discount on the CitiCertificate  accrued during an accrual period
for  each  day on which it  holds  the  CitiCertificate,  including  the date of
purchase  but  excluding  the date of  disposition.  The  Issuer  will treat the
monthly  period ending on the day before each  Distribution  Date as the accrual
period. With respect to each CitiCertificate,  a calculation will be made of the
original issue discount that accrues during each  successive full accrual period
(or shorter period from the date of original  issue) that ends on the day before
the related Distribution Date on the  CitiCertificate.  The Conference Committee
Report  to the  1986 Act  states  that the rate of  accrual  of  original  issue
discount is  intended to be based on the  Prepayment  Assumption.  The  original
issue discount accruing in a full accrual period on a  CitiCertificate  would be
the  excess,  if any,  of (i) the sum of (a)  the  present  value  of all of the
remaining  distributions to be made on the CitiCertificate as of the end of that
accrual period and (b) the distributions made on the CitiCertificate  during the
accrual  period that are  included in the  CitiCertificate's  stated  redemption
price at maturity,  over (ii) the adjusted issue price of the CitiCertificate at
the  beginning  of the  accrual  period.  The  present  value  of the  remaining
distributions  referred to in the preceding  sentence is calculated based on (i)
the yield to maturity of the  CitiCertificate as of the Startup Day, (ii) events
(including  actual  prepayments)  that  have  occurred  prior  to the end of the
accrual  period and (iii) the Prepayment  Assumption.  For these  purposes,  the
adjusted issue price of a CitiCertificate at the beginning of any accrual period
equals the issue price of the CitiCertificate, increased by the aggregate amount
of original issue discount with respect to the  CitiCertificate  that accrued in
all prior accrual periods and reduced by the amount of distributions included in
the CitiCertificate's  stated redemption price at maturity that were made on the
CitiCertificate  attributable to such prior periods. The original issue discount
accruing  during any accrual period (as determined in this  paragraph) will then
be divided by the number of days in the period to determine the daily portion of
original issue  discount for each day in the period.  With respect to an initial
accrual period that is shorter than a full accrual period, the daily portions of
original  issue  discount  must  be  determined   according  to  an  appropriate
allocation under any reasonable method.

     Under the method  described  above,  the daily  portions of original  issue
discount  required  to be  included  in income by a holder of a  CitiCertificate
generally will increase to take into account prepayments on the CitiCertificates
as a result  of  prepayments  on the  Mortgage  Loans  underlying  the  Mortgage
Certificates  or  Mortgage  Loans that  exceed the  Prepayment  Assumption,  and
generally  will decrease (but not below zero for any period) if the  prepayments
on the Mortgage Loans underlying the Mortgage Certificates or Mortgage Loans are
slower  than the  Prepayment  Assumption.  An  increase  in  prepayments  on the
Mortgage  Loans  with  respect  to a Series  can  result in


                                       43
<PAGE>

both a change in the  priority of  principal  payments  with  respect to certain
Classes of  CitiCertificates  and either an  increase  or  decrease in the daily
portions of original issue discount with respect to such CitiCertificates.

     In the  case of a Retail  Class  CitiCertificate,  the  Issuer  intends  to
determine  the  yield  to  maturity  of  such  CitiCertificate  based  upon  the
anticipated payment characteristics of the Class as a whole under the Prepayment
Assumption.  In general,  the original  issue  discount  accruing on each Retail
Class  CitiCertificate  in a full accrual period would be its allocable share of
the original issue  discount with respect to the entire Class,  as determined in
accordance with the preceding paragraph.  However, in the case of a distribution
in reduction of the entire Stated Amount of any Retail Class CitiCertificate (or
portion of such Stated  Amount),  (a) the  remaining  unaccrued  original  issue
discount allocable to such  CitiCertificate  (or to such portion) will accrue at
the time of such  distribution,  and (b) the accrual of original  issue discount
allocable  to each  remaining  CitiCertificate  of such Class (or the  remaining
Stated  Amount  of a  Retail  Class  CitiCertificate  after  a  distribution  in
reduction of Stated Amount has been  received)  will be adjusted by reducing the
present  value of the  remaining  payments on such Class and the adjusted  issue
price of such  Class to the  extent  attributable  to the  portion of the Stated
Amount that was distributed. The Issuer believes that the foregoing treatment is
consistent with the "pro rata prepayment" rules of the OID Regulations, but with
the  rate  of  accrual  of  original  issue  discount  determined  based  on the
Prepayment Assumption for the Class as a whole. Investors are advised to consult
their tax advisors as to this treatment.

  Acquisition Premium

     A purchaser of a CitiCertificate at a price greater than its adjusted issue
price but less than its stated  redemption price at maturity will be required to
include in gross income the daily portions of the original issue discount on the
CitiCertificate pro rata by a fraction,  the numerator of which is the excess of
its purchase price over such adjusted  issue price and the  denominator of which
is the excess of the  remaining  stated  redemption  price at maturity  over the
adjusted issue price.  Alternatively,  such a subsequent  purchaser may elect to
treat all such acquisition premium under the constant yield method, as described
under the heading  "--Election  to Treat All Interest  Under the Constant  Yield
Method" below.

  Variable Rate CitiCertificates

     CitiCertificates  may  provide  for  interest  based  on  a  variable  rate
("Variable  Rate  CitiCertificates").  Under the OID  Regulations,  interest  is
treated as payable at a variable  rate 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
(a) one or more "qualified  floating  rates," (b) a single fixed rate and one or
more qualified  floating rates, (c) a single  "objective  rate," or (d) a single
fixed rate and a single  objective  rate that is a "qualified  inverse  floating
rate." A floating  rate is a qualified  floating  rate if variations in the rate
can reasonably be expected to measure contemporaneous  variations in the cost of
newly borrowed  funds,  where such rate is subject to a multiple that is greater
than  0.65 but not  greater  than  1.35.  Such  rate may  also be  increased  or
decreased  by a fixed  spread or  subject  to a fixed cap or floor,  or a cap or
floor that is not  reasonably  expected as of the issue date to affect the yield
of the  instrument  significantly.  An objective  rate is any 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, provided that such
information  is not (i) within the  control of the issuer or a related  party or
(ii) unique to the  circumstances  of the issuer or a related party. A qualified
inverse floating rate is a rate equal to a fixed rate minus a qualified floating
rate that  inversely  reflects  contemporaneous  variations in the cost of newly
borrowed  funds;  an  inverse  floating  rate  that is not a  qualified  inverse
floating rate may nevertheless be an objective rate. A Class of CitiCertificates
may be issued under this Prospectus that does not have a variable rate under the
foregoing  rules,  for example,  a Class that bears different rates at different
times  during  the  period  it  is  outstanding   such  that  it  is  considered
significantly  "front-loaded"  or  "back-loaded"  within the  meaning of the OID
Regulations.  It is  possible  that  such a  Class  may be  considered  to  bear
"contingent  interest"  within  the  meaning  of the  OID  Regulations.  The OID
Regulations,  as they relate to the  treatment of  contingent  interest,  are by
their terms not applicable to  CitiCertificates.  However,  if final regulations
dealing with contingent interest with respect to CitiCertificates apply the same
principles as the OID Regulations, such regulations may lead to different timing
of  income  inclusion  than  would  be  the  case  under  the  OID  Regulations.
Furthermore,  application of such principles could lead to the  characterization
of gain on the sale of contingent interest  CitiCertificates as ordinary income.
Investors should consult their tax advisors regarding the appropriate  treatment
of any  CitiCertificates  that do not pay  interest  at a fixed rate or variable
rate as described in this paragraph.

                                       44
<PAGE>

     Under the REMIC  Regulations,  a  CitiCertificate  (i)  bearing a rate that
qualifies as a variable rate under the OID  Regulations  that is tied to current
values of a  variable  rate (or the  highest,  lowest or  average of two or more
variable  rates,  including a rate based on the average  cost of funds of one or
more financial institutions),  or a positive or negative multiple of such a rate
(plus or minus a specified number of basis points) or that represents a weighted
average of rates on some or all of the  Mortgage  Loans that bear either a fixed
rate or a variable  rate,  including  such a rate that is subject to one or more
caps or floors,  or (ii) bearing one or more such variable rates for one or more
periods,  and a  different  variable  rate or  fixed  rate  for  other  periods,
qualifies  as a  regular  interest  in a REMIC.  Accordingly,  unless  otherwise
indicated in the applicable Prospectus  Supplement,  the Issuer intends to treat
CitiCertificates  that qualify as regular  interests under this rule in the same
manner as  obligations  bearing a  variable  rate for  original  issue  discount
reporting purposes.

     The amount of original  issue  discount  with respect to a  CitiCertificate
bearing a variable  rate of interest will accrue in the manner  described  above
under  "Original  Issue  Discount",  with  the  yield  to  maturity  and  future
distributions  on such  CitiCertificate  generally to be  determined by assuming
that interest will be payable for the life of the  CitiCertificate  based on the
initial rate (or, if different,  the value of the applicable variable rate as of
the pricing  date).  Unless  otherwise  specified in the  applicable  Prospectus
Supplement,  the Issuer  intends to treat such  variable  interest as  qualified
stated   interest,   other  than  variable   interest  on  an  interest-only  or
super-premium  Class,  which will be treated as  non-qualified  stated  interest
includible  in  the  stated  redemption  price  at  maturity.   Ordinary  income
reportable  for any period will be adjusted  based on subsequent  changes in the
applicable interest rate index.

     Although  unclear under the OID  Regulations,  the Issuer  intends to treat
CitiCertificates  bearing an interest rate that is a weighted average of the net
interest  rates on Mortgage  Loans  having fixed or  adjustable  rates as having
qualified  stated  interest.  In the case of adjustable rate Mortgage Loans, the
applicable index used to compute interest on the Mortgage Loans in effect on the
pricing  date (or  possibly  the  issue  date)  will be  deemed  to be in effect
beginning with the period in which the first weighted  average  adjustment  date
occurring after the issue date occurs.  Adjustments will be made in each accrual
period either  increasing or decreasing the amount of ordinary income reportable
to reflect the actual Stated Rate on the CitiCertificates.

  Deferred Interest

     Any Deferred Interest (as defined in the Prospectus Supplement with respect
to a Series)  that  accrues  with  respect to a Class of  CitiCertificates  will
constitute  income to the  holders  of such  CitiCertificates  prior to the time
distributions of cash with respect to such Deferred Interest are made. Under the
OID  Regulations,  all  interest  payments  on  CitiCertificates  that  may have
Deferred Interest must be treated as non-qualified  stated interest payments and
included in the stated redemption price at maturity of the  CitiCertificates  in
computing original issue discount thereon.

  Market Discount

     A purchaser of a CitiCertificate also may be subject to the market discount
rules of Code  Sections  1276 through  1278.  Under these Code  sections and the
principles  applied by the OID  Regulations  in the  context of  original  issue
discount,  "market  discount"  is the amount by which the  purchaser's  original
basis in the  CitiCertificate  (i) is  exceeded  by the  then-current  principal
amount of the CitiCertificate,  or (ii) in the case of a CitiCertificate  having
original  issue  discount,  is  exceeded  by the  adjusted  issue  price of such
CitiCertificate  at the time of purchase,  as described  above.  Such  purchaser
generally will be required to recognize ordinary income to the extent of accrued
market  discount on such  CitiCertificate  as  distributions  includible  in the
stated  redemption  price at  maturity  thereof are  received,  in an amount not
exceeding any such  distribution.  Such market discount would accrue in a manner
to be  provided  in  Treasury  regulations  and  should  take into  account  the
Prepayment Assumption.  The Conference Committee Report of the 1986 Act provides
that until such regulations are issued, such market discount would accrue either
(i) on the basis of a  constant  interest  rate,  or (ii) in the ratio of stated
interest  allocable to the  relevant  period to the sum of the interest for such
period plus the remaining  interest as of the end of such period, or in the case
of a  CitiCertificate  issued  with  original  issue  discount,  in the ratio of
original  issue  discount  accrued  for the  relevant  period  to the sum of the
original  issue  discount  accrued for such period plus the  remaining  original
issue discount as of the end of such period.  Such purchaser also generally will
be  required  to  treat a  portion  of any  gain on a sale  or  exchange  of the
CitiCertificate  as ordinary income to the extent of the market discount accrued
to the date of disposition under one of the foregoing methods,  less any accrued
market discount previously reported as ordinary 


                                       45
<PAGE>

income as partial  distributions in reduction of the stated  redemption price at
maturity were received.  Such purchaser also will be required to defer deduction
of a portion of the interest expense  attributable to any indebtedness  incurred
or continued to purchase or carry the  CitiCertificate.  The deferred portion of
the  interest  expense  would not  exceed the  accrued  market  discount  on the
CitiCertificate  for the taxable year. Any such deferred interest expense is, in
general,  allowed as a  deduction  not later than the year in which the  related
market discount income is recognized or the  CitiCertificate  is disposed of. As
an  alternative  to the inclusion of market  discount in income on the foregoing
basis, the holder may elect to include market discount in income currently as it
accrues on all  market  discount  instruments  acquired  by such  holder in that
taxable year or  thereafter,  in which case the interest  deferral rule will not
apply.  See  "--Election  to Treat All Interest Under the Constant Yield Method"
below regarding an alternative manner in which such election may be deemed to be
made.

     By  analogy  to the OID  Regulations,  market  discount  with  respect to a
CitiCertificate  will be considered  to be zero if such market  discount is less
than  0.25%  of the  remaining  stated  redemption  price  at  maturity  of such
CitiCertificate   multiplied   by  the   weighted   average   maturity   of  the
CitiCertificate  (determined  as described  above in the third  paragraph  under
"Original Issue Discount") remaining after the date of purchase. It appears that
de minimis  market  discount would be reported in a manner similar to de minimis
original  issue  discount.   See  "Original  Issue  Discount"  above.   Treasury
regulations implementing the market discount rules have not yet been issued, and
therefore  investors  should  consult  their  own  tax  advisors  regarding  the
application  of these rules.  Investors  should also consult  Revenue  Procedure
92-67  concerning the elections to include market  discount in income  currently
and to accrue market discount on the basis of the constant yield method.

  Premium

     A  CitiCertificate  purchased at a cost greater than its  remaining  stated
redemption  price at maturity  generally  is  considered  to be  purchased  at a
premium. If a holder holds such  CitiCertificate as a "capital asset" within the
meaning of Code  Section  1221,  the holder may elect under Code  Section 171 to
amortize such premium under the constant yield method.  Such election will apply
to all debt obligations acquired at a premium by the holder of a CitiCertificate
held in that taxable year or  thereafter,  unless revoked with the permission of
the Internal  Revenue  Service.  Final  Treasury  regulations  issued under Code
Section 171 do not by their terms apply to prepayable  debt  instrument  such as
the  CitiCertificates.  However, the Conference Committee Report to the 1986 Act
indicates  a  Congressional  intent  that the same  rules that will apply to the
accrual  of market  discount  on  installment  obligations  will  also  apply in
amortizing bond premium under Code Section 171 on installment  obligations  such
as the CitiCertificates,  although it is unclear whether the alternatives to the
constant yield method  described above under "--Market  Discount" are available.
Amortizable  bond premium  will be treated as an offset to interest  income on a
CitiCertificate, rather than a separate deduction item. See "--Election to Treat
All Interest  Under the Constant  Yield Method" below  regarding an  alternative
manner in which the Code Section 171 election may be deemed to be made.

  Treatment of Losses

     Holders of CitiCertificates  will be required to report income with respect
to the  CitiCertificates  on the accrual  method of  accounting,  without giving
effect to delays or  reductions  in  distributions  attributable  to defaults or
delinquencies on the Mortgage Loans,  except to the extent it can be established
that   such   losses   are   uncollectible.   Accordingly,   the   holder  of  a
CitiCertificate, particularly a Subordinated Certificate, may have income or may
incur a diminution in cash flow as a result of a default or delinquency, but may
not be  able to take a  deduction  (subject  to the  discussion  below)  for the
corresponding  loss until a subsequent  taxable year. In this regard,  investors
are cautioned that while they may generally  cease to accrue  interest income if
it  reasonably  appears that the interest  will be  uncollectible,  the Internal
Revenue Service may take the position that original issue discount must continue
to be  accrued in spite of its  uncollectibility  until the debt  instrument  is
disposed of in a taxable transaction or becomes worthless in accordance with the
rules of Code Section 166.

     To the  extent  the  rules of Code  Section  166  regarding  bad  debts are
applicable, it appears that holders of CitiCertificates that are corporations or
that otherwise hold the  CitiCertificates in connection with a trade or business
should in  general  be  allowed  to deduct  as an  ordinary  loss such loss with
respect to  principal  sustained  during the taxable year on account of any such
CitiCertificates  becoming wholly or partially worthless,  and that, in general,
holders  of  CitiCertificates  that  are not  corporations  and do not  hold the
CitiCertificates  in  connection  with a trade or  business  will be  allowed to
deduct as a short term capital loss any loss  sustained  during the taxable year
on account of a


                                       46
<PAGE>

portion of any such  CitiCertificates  becoming wholly  worthless.  Although the
matter is not free from doubt, such  non-corporate  holders of  CitiCertificates
should be allowed a bad debt  deduction  at such time as a loss is  allocated to
such Class of  CitiCertificates  to reflect 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 such
losses  only  after all the  Mortgage  Loans  remaining  in the Trust  have been
liquidated  or the  applicable  Class of  CitiCertificates  has  been  otherwise
retired.  The  Internal  Revenue  Service  could also  assert that losses on the
CitiCertificates  are  deductible  on some  other  method  that may  defer  such
deductions  for all holders,  such as reducing  future cash flow for purposes of
computing  original  issue  discount.  This  may  have the  effect  of  creating
"negative" original issue discount which would be deductible only against future
positive  original issue  discount or otherwise  upon  termination of the Class.
Holders  of  CitiCertificates  are  urged  to  consult  their  own tax  advisors
regarding the  appropriate  timing,  amount and character of any loss  sustained
with respect to such  CitiCertificates.  While losses  attributable  to interest
previously  reported as income should be  deductible as ordinary  losses by both
corporate and non-corporate  holders,  the Internal Revenue Service may take the
position that losses attributable to accrued original issue discount may only be
deducted as short-term capital losses by non-corporate  holders not engaged in a
trade or  business.  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
CitiCertificates.

  Election to Treat All Interest Under the Constant Yield Method

     A holder of a debt instrument such as a CitiCertificate  may elect to treat
all interest  that accrues on the  instrument  using the constant  yield method,
with none of the  interest  being  treated as  qualified  stated  interest.  For
purposes of applying the constant yield method to a debt  instrument  subject to
such an election,  (i)  "interest"  includes  stated  interest,  original  issue
discount,  de minimis  original issue  discount,  market discount and de minimis
market  discount,  as adjusted by any  amortizable  bond premium or  acquisition
premium and (ii) the debt instrument is treated as if the instrument were issued
on the holder's  acquisition  date in the amount of the holder's  adjusted basis
immediately  after  acquisition.  It is unclear whether,  for this purpose,  the
initial  prepayment  assumption  would  continue to apply or if a new prepayment
assumption  as of the date of the holder's  acquisition  would  apply.  A holder
generally may make such an election on an instrument by instrument  basis or for
a class or group of debt  instruments.  However,  if the  holder  makes  such an
election with respect to a debt instrument with amortizable bond premium or with
market  discount,  the holder is deemed to have made  elections to amortize bond
premium or to report market  discount  income  currently as it accrues under the
constant  yield  method,  respectively,  for all  premium  bonds  held or market
discount  bonds  acquired by the holder in the same taxable year or  thereafter.
The election is made on the holder's  federal  income tax return for the year in
which  the debt  instrument  is  acquired  and is  irrevocable  except  with the
approval of the Internal Revenue Service. Investors should consult their own tax
advisors regarding the advisability of making such an election.

  Sale or Exchange of CitiCertificates

     If a holder sells or exchanges a CitiCertificate, the holder will recognize
gain or loss equal to the  difference,  if any,  between the amount received and
its  adjusted   basis  in  the   CitiCertificate.   The  adjusted   basis  of  a
CitiCertificate  generally  will  equal the cost of the  CitiCertificate  to the
seller,  increased by any original issue discount or market discount  previously
included in the seller's gross income with respect to the  CitiCertificate,  and
reduced  by  the  distributions  in  reduction  of  the  Stated  Amount  of  the
CitiCertificate  that were previously  received by the seller,  by any amortized
premium and by any deductible losses.

     Except as described  above with respect to market  discount,  and except as
provided  in this  paragraph,  any  gain or loss on the  sale or  exchange  of a
CitiCertificate  realized  by an  investor  who holds the  CitiCertificate  as a
capital  asset (within the meaning of Code Section 1221) will be capital gain or
loss and will be  long-term,  mid-term or  short-term  depending  on whether the
CitiCertificate  has been  held for the  applicable  holding  period  (described
below). Such gain will be treated as ordinary income (i) if a CitiCertificate is
held as part of a "conversion  transaction" as defined in Code Section  1258(c),
up to the  amount of  interest  that  would have  accrued  on the  holder's  net
investment in the conversion  transaction at 120% of the appropriate  applicable
Federal rate under Code Section 1274(d) in effect at the time the holder entered
into the transaction minus any amount previously treated as ordinary income with
respect to any prior  disposition  of  property  that was held as a part of such
transaction,  (ii) in the case of a non-corporate  taxpayer,  to the extent such
taxpayer has made an election  under Code Section  163(d)(4) to have net capital
gains taxed as  investment  income at  ordinary  income  rates,  or (iii) to the
extent that such gain does not exceed the excess, if any, of (a) the amount that
would  have been  includible  in the gross  income of the holder if its yield on
such  CitiCertificate


                                       47
<PAGE>

were 110% of the  applicable  Federal rate as of the date of purchase,  over (b)
the amount of income actually includible in the gross income of such holder with
respect to such CitiCertificate.  In addition,  gain or loss recognized from the
sale of a  CitiCertificate  by  certain  banks or  thrift  institutions  will be
treated as ordinary income or loss pursuant to Code Section 582(c).  In general,
short-term capital gains of certain  non-corporate  taxpayers are subject to the
same  maximum tax rate of 39.6% as the  ordinary  income of such  taxpayers  for
property  held for not more  than one  year;  mid-term  capital  gains  for such
taxpayers  are subject to a maximum tax rate of 28% for  property  held for more
than one year but not more than 18 months;  and long-term  capital gains of such
taxpayers  are subject to a maximum tax rate of 20% for  property  held for more
than 18 months.  The maximum tax rate for  corporations is the same with respect
to both ordinary income and capital gains.

TAXATION OF RESIDUAL CERTIFICATES

  Taxation of REMIC Income

     Generally, the "daily portions" of REMIC taxable income or net loss will be
includible  directly  on the  federal  income tax return of holders of  Residual
Certificates  ("Residual  Holders") as ordinary  income or loss, and will not be
taxed separately to the REMIC. The daily portions of REMIC taxable income or net
loss for a Residual  Holder are  determined  by allocating  the REMIC's  taxable
income or net loss for each calendar quarter ratably to each day in such quarter
and by allocating such daily portion among the Residual Holders in proportion to
their  respective  holdings of Residual  Certificates  in the REMIC on such day.
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 limitation 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  deductibility  of interest and
expenses  related to  tax-exempt  income will apply.  The REMIC's  gross  income
includes  interest,  original issue discount income, and market discount income,
if any, on the Mortgage  Loans or the  mortgage  loans  underlying  the Mortgage
Certificates  owned by the REMIC,  reduced by amortization of any premium on the
Mortgage Loans or the mortgage loans underlying the Mortgage Certificates,  plus
amortization of premium on CitiCertificates  issued at a premium, plus income on
reinvestment  of cash  flows  and  reserve  assets,  plus  any  cancellation  of
indebtedness income upon allocation of realized losses to the  CitiCertificates.
The REMIC's  deductions  include interest and original issue discount expense on
the CitiCertificates, servicing fees on the Mortgage Loans or the mortgage loans
underlying the Mortgage Certificates, other administrative expenses and realized
losses on the Mortgage  Loans or Mortgage  Certificates.  The  requirement  that
Residual  Holders  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.

     The taxable income recognized by a Residual Holder in any taxable year will
be affected  by, among other  factors,  the  relationship  between the timing of
recognition of interest and original issue discount or market discount income or
amortization  of premium  with respect to Mortgage  Loans or the mortgage  loans
underlying  the  Mortgage  Certificates,  on the one  hand,  and the  timing  of
deductions  for  interest  (including  original  issue  discount) or income from
amortization of issue premium on the CitiCertificates, on the other hand. In the
event that an interest in the Mortgage Loans or in the mortgage loans underlying
a Mortgage  Certificate is acquired by the REMIC at a discount,  and one or more
of such loans is prepaid,  the  Residual  Holder may  recognize  taxable  income
without being entitled to receive a corresponding amount of cash because (i) the
prepayment may be used in whole or in part to make distributions in reduction of
Stated Amount of  CitiCertificates,  and (ii) the discount on the Mortgage Loans
or  underlying  mortgage  loans  which is  includible  in income  may exceed the
deduction allowed upon such distributions on those  CitiCertificates  on account
of any unaccrued  original  issue discount  relating to those  CitiCertificates.
When there is more than one Class of  CitiCertificates on which distributions in
reduction of Stated Amount are made sequentially, this mismatching of income and
deductions is particularly likely to occur in the early years following issuance
of the  CitiCertificates  when  distributions  in reduction of Stated Amount are
being made in respect of the earlier Classes of  CitiCertificates  to the extent
such  Classes  are not issued  with  substantial  discount.  If  taxable  income
attributable to such a mismatching is realized, in general, corresponding losses
would be  allowed  in later  years as  distributions  on the  later  Classes  of
CitiCertificates  are made.  Taxable income may also be greater in earlier years
than in later years as a result of the fact that  interest  expense  deductions,
expressed   as  a  percentage   of  the   outstanding   Stated   Amount  of  the
CitiCertificates, may increase over time as distributions in reduction of Stated
Amount  are made on the lower  yielding  Classes  of  CitiCertificates,  whereas
interest  income  with  respect to any given  Mortgage  Loan or  mortgage  loans
underlying a Mortgage Certificate will remain constant over time as a percentage
of the outstanding 


                                       48
<PAGE>

principal  amount  of  that  loan.  Consequently,  Residual  Holders  must  have
sufficient  other  sources of cash to pay any  federal,  state,  or local income
taxes due as a result of such mismatching or unrelated  deductions against which
to offset such  income,  subject to the rules on "excess  inclusions"  discussed
below. The timing of such mismatching of income and deductions described in this
paragraph,  if present with respect to a Series of CitiCertificates,  may have a
significant adverse effect upon a Residual Holder's after-tax rate of return. In
addition,  a Residual  Holder's taxable income during certain periods may exceed
the income reflected by such Residual Holder for such periods in accordance with
generally  accepted  accounting  principles.  Investors should consult their own
accountants  concerning  the  accounting  treatment of their  investment in such
Certificates.

  Basis and Losses

     The amount of any net loss of the REMIC  that may be taken into  account by
the Residual Holder is limited to the adjusted basis of the Residual Certificate
as of the  close  of  the  quarter  (or  time  of  disposition  of the  Residual
Certificate,  if earlier),  determined  without taking into account the net loss
for the  quarter.  The  initial  adjusted  basis of a  purchaser  of a  Residual
Certificate  is the amount paid for such  Residual  Certificate.  Such  adjusted
basis will be increased by the amount of taxable income of the REMIC  reportable
by the Residual  Holder and will be decreased (but not below zero),  first, by a
cash distribution from the REMIC and, second, by the amount of loss of the REMIC
reportable  by the Residual  Holder.  Any loss that is  disallowed on account of
this limitation may be carried over indefinitely by the Residual Holder for whom
such loss was disallowed and may be used by such Residual  Holder only to offset
any income generated by the same REMIC.

     A Residual  Holder will not be permitted  to amortize  directly the cost of
its Residual  Certificate as an offset to its share of the taxable income of the
related  REMIC.  However,  that taxable income will not include cash received by
the REMIC that  represents a recovery of the REMIC's  basis in its assets.  Such
recovery of basis by the REMIC will have the effect of amortization of the issue
price of the  Residual  Certificates  over their life.  However,  in view of the
possible  acceleration of the income of Residual  Holders  described above under
"--Taxation of REMIC Income",  the period of time over which such issue price is
effectively  amortized  may be longer  than the  economic  life of the  Residual
Certificates.

     A Residual  Certificate  may have a negative value if the net present value
of  anticipated  tax  liability  exceeds the present value of  anticipated  cash
flows. The REMIC Regulations  appear to treat the issue price of such a residual
interest as zero rather than such  negative  amount for purposes of  determining
the REMIC's basis in its assets.  The preamble to the REMIC  Regulations  states
that the Internal  Revenue Service may provide future guidance on the proper tax
treatment  of payments  made by the  transferor  of such a residual  interest to
induce the  transferee  to acquire the  interest,  and Residual  Holders  should
consult their own tax advisors in this regard.

     To the extent that the initial  adjusted basis of a Residual  Holder (other
than the  original  holder) in the  Residual  Certificate  is  greater  than the
corresponding  portion of the REMIC's  basis in the  Mortgage  Loans or Mortgage
Certificates, the Residual Holder will not recover a portion of such basis until
termination of the REMIC unless otherwise provided in subsequent  legislation or
future Treasury regulations. The REMIC Regulations currently in effect do not so
provide.  See  "Treatment  of Certain  Items of REMIC Income and  Expense-Market
Discount" below  regarding the basis of Mortgage Loans or Mortgage  Certificates
to the REMIC and "Sale or Exchange of a Residual  Certificate"  below  regarding
possible treatment of a loss upon termination of the REMIC as a capital loss.

  Treatment of Certain Items of REMIC Income and Expense

     Although  the  Issuer  intends  to  compute  REMIC  income  and  expense in
accordance with the Code and applicable  regulations,  the authorities regarding
the  determination  of  specific  items of income  and  expense  are  subject to
differing interpretations. The Issuer makes no representation as to the specific
method that it will use for reporting  income with respect to the Mortgage Loans
and expenses with respect to the  CitiCertificates  and different  methods could
result  in  different  timing  of  reporting  of  taxable  income or net loss to
Residual Holders or differences in capital gain versus ordinary income.

     Original Issue Discount and Premium.  Generally, the REMIC's deductions for
original  issue  discount  and  income  or  offset to  interest  (expense)  from
amortization  of issue premium will be determined in the same manner as original
issue discount income and premium  amortization on CitiCertificates as described
above  under   "--Taxation  of   CitiCertificates--Original   Issue   Discount,"
"--Variable Rate  CitiCertificates"  and "--Deferred Interest" without regard to
the de minimis rule described therein, and "--Premium."

                                       49
<PAGE>

     Deferred  Interest.  Any Deferred Interest that accrues with respect to any
adjustable rate Mortgage Loans held by the REMIC will  constitute  income to the
REMIC and will be treated  in a manner  similar to the  Deferred  Interest  that
accrues with respect to  CitiCertificates  as described above under "Taxation of
CitiCertificates--Deferred Interest".

     Market  Discount.  The REMIC will have market discount income in respect of
mortgage loans  directly held by the REMIC or underlying a Mortgage  Certificate
if, in  general,  the basis of the REMIC  allocable  to such  mortgage  loans is
exceeded by their unpaid principal balances.  The REMIC's basis in such mortgage
loans is their fair market value  immediately after their transfer to the REMIC.
The REMIC  Regulations  provide that such basis is equal in the aggregate to the
issue  prices of all regular and  residual  interests  in the REMIC (or the fair
market value thereof at the Closing Date in the case of a retained  class).  The
accrued portion of such market discount would be recognized currently as an item
of REMIC ordinary income in a manner similar to original issue discount.  Market
discount  income  generally  should accrue in the manner  described  above under
"--Taxation of CitiCertificates-Market Discount."

     Premium.  Generally,  if the  basis of the  REMIC in  mortgage  loans  held
directly by the REMIC or  underlying a Mortgage  Certificate  exceeds the unpaid
principal  balances of the mortgage loans,  the REMIC will be considered to have
acquired such mortgage loans at a premium equal to the amount of such excess. As
stated  above,  the REMIC's  basis in such  mortgage  loans is their fair market
value immediately  after their transfer to the REMIC,  based on the aggregate of
the issue prices (or the fair market values of retained  classes) of the regular
and residual  interests  in the REMIC.  As  described  above under  "Taxation of
CitiCertificates--Premium,"  a person who holds mortgage loans as capital assets
under Code Section 1221 may elect under Code Section 171 to amortize  premium on
the mortgage loans described above that were originated after September 27, 1985
under the constant yield method.  Amortizable bond premium will be treated as an
offset to  interest  income on the  mortgage  loans,  rather  than as a separate
deduction  item.  Because  substantially  all of the  mortgagors on the mortgage
loans described above are expected to be individuals,  Code Section 171 will not
be available for premium on mortgage  loans  originated on or prior to September
27, 1985.  Premium  with respect to such  mortgage  loans may be  deductible  in
accordance  with a reasonable  method  regularly  employed by the holder of such
mortgage loans. The allocation of such premium pro rata among principal payments
should be considered a reasonable method;  however, the Internal Revenue Service
may argue that such premium should be allocated in a different  manner,  such as
allocating such premium entirely to the final payment of principal.

  Limitations on Offset or Exemption of REMIC Income

     A portion (or all) of the REMIC taxable  income  includible in  determining
the federal income tax liability of a Residual Holder will be subject to special
treatment.  That portion, referred to as the "excess inclusion," is equal to the
excess of REMIC taxable income for the calendar quarter  allocable to a Residual
Certificate over the daily accruals for such quarterly period of (i) 120% of the
long term  applicable  Federal  rate that  would have  applied  to the  Residual
Certificate (if it were a debt instrument) on the Startup Day under Code Section
1274(d),   multiplied  by  (ii)  the  adjusted  issue  price  of  such  Residual
Certificate at the beginning of such  quarterly  period.  For this purpose,  the
adjusted issue price of a Residual  Certificate at the beginning of a quarter is
the  issue  price of the  Residual  Certificate,  plus the  amount  of the daily
accruals of REMIC income for all prior quarters,  decreased by any distributions
made with respect to such  Residual  Certificate  prior to the beginning of such
quarterly  period.  Accordingly,  the portion of the REMIC's taxable income that
will be treated as excess  inclusions will be a larger portion of such income as
the adjusted issue price of the Residual Certificates diminishes.

     The portion of a Residual  Holder's REMIC taxable income  consisting of the
excess inclusions generally may not be offset by other deductions, including net
operating loss carry forwards,  on such Residual Holder's return.  However,  net
operating  loss  carryovers are  determined  without regard to excess  inclusion
income. Further, if the Residual Holder is an organization subject to the tax on
unrelated  business  income  imposed by Code Section 511, the Residual  Holder's
excess  inclusions will be treated as unrelated  business taxable income of such
Residual  Holder for purposes of Code Section  511. In addition,  REMIC  taxable
income is subject to 30% withholding tax with respect to certain persons who are
not U.S. Persons (as defined below under  "Tax-Related  Restrictions on Transfer
of  Residual   Certificates-Foreign   Investors"),   and  the  portion   thereof
attributable to excess  inclusions is not eligible for any reduction in the rate
of withholding  tax (by treaty or otherwise).  See "Taxation of Certain  Foreign
Investors-Residual  Certificates"  below.  Finally,  if a real estate investment
trust or regulated  investment  company owns a Residual  Certificate,  a portion
(allocated under Treasury regulations yet to be issued) of dividends paid by the
real estate 


                                       50
<PAGE>

investment  trust or  regulated  investment  company  could not be offset by net
operating  losses  of its  shareholders,  would  constitute  unrelated  business
taxable  income  for tax  exempt  shareholders,  and  would  be  ineligible  for
reduction of withholding to certain persons who are not U.S. Persons.  The SBJPA
of 1996 has  eliminated  the special rule  permitting  Section 593  institutions
("thrift  institutions")  to  use  net  operating  losses  and  other  allowable
deductions to offset their excess  inclusion  income from Residual  Certificates
that have  "significant  value"  within the  meaning  of the REMIC  Regulations,
effective  for taxable  years  beginning  after  December 31, 1995,  except with
respect to Residual Certificates  continuously held by thrift institutions since
November 1, 1995.

     In addition,  the SBJPA of 1996 provides  three rules for  determining  the
effect of excess  inclusions  on the  alternative  minimum  taxable  income of a
Residual Holder. First, alternative minimum taxable income for a Residual Holder
is determined without regard to the special rule,  discussed above, that taxable
income  cannot be less than  excess  inclusions.  Second,  a  Residual  Holder's
alternative  minimum  taxable  income for a taxable year cannot be less than the
excess inclusions for the year. Third, the amount of any alternative minimum tax
net  operating  loss  deduction  must be computed  without  regard to any excess
inclusions. These rules are effective for taxable years beginning after December
31,  1986,  unless a Residual  Holder  elects to have such  rules  apply only to
taxable years beginning after August 20, 1996.

  Tax-Related Restrictions on Transfer of Residual Certificates

     Disqualified  Organizations.  If any  legal  or  beneficial  interest  in a
Residual  Certificate is transferred to a Disqualified  Organization (as defined
below),  a tax would be  imposed  in an amount  equal to the  product of (i) the
present value of the total  anticipated  excess  inclusions with respect to such
Residual  Certificate  for  periods  after  the  transfer  and (ii) the  highest
marginal  federal  income  tax  rate  applicable  to  corporations.   The  REMIC
Regulations  provide that the anticipated  excess inclusions are based on actual
prepayment  experience to the date of the transfer and projected  payments based
on the  Prepayment  Assumption.  The present  value rate  equals the  applicable
Federal  rate under Code  Section  1274(d) as of the date of the  transfer for a
term  ending  with the last  calendar  quarter in which  excess  inclusions  are
expected to accrue.  Such rate is applied to the anticipated  excess  inclusions
from the end of the remaining  calendar quarters in which they arise to the date
of the transfer.  Such a tax generally would be imposed on the transferor of the
Residual  Certificate,  except  that  where  such  transfer  is through an agent
(including  a  broker,   nominee  or  other   middleman)   for  a   Disqualified
Organization,  the tax would  instead  be  imposed  on such  agent.  However,  a
transferor  of a Residual  Certificate  would in no event be liable for such tax
with  respect to a transfer if the  transferee  furnishes to the  transferor  an
affidavit that the transferee is not a Disqualified  Organization and, as of the
time of the transfer,  the transferor  does not have actual  knowledge that such
affidavit is false.  The tax also may be waived by the Internal  Revenue Service
if the Disqualified  Organization  promptly disposes of the Residual Certificate
and the transferor  pays income tax at the highest  corporate rate on the excess
inclusions  for the period the  Residual  Certificate  is  actually  held by the
Disqualified Organization.

     In  addition,  if a  "Pass-Through  Entity" (as  defined  below) has excess
inclusion  income with respect to a Residual  Certificate  during a taxable year
and a Disqualified  Organization  is the record holder of an equity  interest in
such  entity,  then a tax will be imposed on such entity equal to the product of
(i) the amount of excess  inclusions  that are  allocable to the interest in the
Pass-Through Entity during the period such interest is held by such Disqualified
Organization  and (ii) the federal  corporate income tax rate. Such tax would be
deductible  from the ordinary  gross income of the  Pass-Through  Entity for the
taxable year. The Pass-Through Entity would not be liable for such tax if it has
received  an  affidavit  from such record  holder that it is not a  Disqualified
Organization or stating such holder's taxpayer identification number and, during
the period such person is the record  holder of the  Residual  Certificate,  the
Pass-Through Entity does not have actual knowledge that such affidavit is false.

     For taxable  years  beginning on or after  January 1, 1998, if an "electing
large partnership" holds a Residual  Certificate,  all interests in the electing
large partnership are treated as held by Disqualified Organizations for purposes
of the tax imposed upon a Pass-Through Entity by section 860E(c) of the Code. An
exception  to this tax,  otherwise  available to a  Pass-Through  Entity that is
furnished  certain  affidavits by record  holders of interests in the entity and
that does not know such  affidavits  are false,  is not available to an electing
large partnership.

     For these  purposes,  (i)  "Disqualified  Organization"  means  the  United
States, any state or political subdivision thereof, any foreign government,  any
international  organization,  any  agency  or  instrumentality  of  any  of  the
foregoing  (provided,  that such term does not include an instrumentality if all
of its activities are subject to tax and a majority of its board of directors is
not  selected  by any such  government  entity),  any  cooperative  organization

                                       51
<PAGE>

furnishing  electric energy or providing  telephone  service to persons in rural
areas as described in Code Section  1381(a)(2)(C),  and any organization  (other
than a farmers'  cooperative  described in Code Section 521) that is exempt from
taxation  under the Code  unless  such  organization  is  subject  to the tax on
unrelated  business  income  imposed by Code  Section  511,  (ii)  "Pass-Through
Entity" means any regulated  investment  company,  real estate investment trust,
common  trust  fund,  partnership,  trust or  estate  and  certain  corporations
operating  on a  cooperative  basis  (except  as may  be  provided  in  Treasury
regulations,  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) and (iii) an "electing large partnership" is a partnership
which had 100 or more members  during the  preceeding  taxable year,  other than
certain  service  partnerships  and  commodity  pools,  and  elects to apply the
simplified reporting provisions of the Code.

     The Pooling  Agreement  with respect to a Series will provide that no legal
or  beneficial  interest  in  a  Residual  Certificate  may  be  transferred  or
registered unless (i) the proposed transferee  provides to the transferor,  CMSI
and the Trustee an affidavit  providing its taxpayer  identification  number and
stating that such transferee is the beneficial owner of the Residual Certificate
and is not a  Disqualified  Organization  and  that  it is not  purchasing  such
Residual  Certificate  on  behalf of a  Disqualified  Organization  (i.e.,  as a
broker,  nominee  or  middleman  thereof),  and (ii) the  transferor  provides a
statement  in writing to CMSI and the  Trustee  that it has no actual  knowledge
that such affidavit is false.  Moreover, the Pooling Agreement will provide that
any attempted or purported transfer in violation of these transfer  restrictions
will be null and void and will vest no rights in any purported transferee.  Each
Residual  Certificate  with respect to a Series will bear a legend  referring to
such restrictions on transfer, and each holder of a Residual Certificate will be
deemed to have agreed, as a condition of ownership thereof, to any amendments to
the related  Pooling  Agreement  required under the Code or applicable  Treasury
regulations to effectuate the foregoing  restrictions.  Information necessary to
compute an  applicable  excise tax must be  furnished  to the  Internal  Revenue
Service and to the requesting  party within 60 days of the request,  and CMSI or
the Trustee may charge a fee for computing and providing such information.

     Noneconomic  Residual Interests.  The REMIC Regulations permit the Internal
Revenue  Service to disregard  certain  transfers of Residual  Certificates,  in
which  case the  transferor  would  continue  to be  treated as the owner of the
Residual  Certificates  and thus  would  continue  to be  subject  to tax on its
allocable portion of the net income of the REMIC. Under the REMIC Regulations, a
transfer of a "noneconomic  residual  interest" (as defined below) to a Residual
Holder (other than a Residual Holder who is not a U.S. Person,  as defined below
under "Foreign Investors") is disregarded for all federal income tax purposes if
a  significant  purpose  of  the  transferor  is to  impede  the  assessment  or
collection of tax. A residual interest in a REMIC (including a residual interest
with a positive value at issuance) is a "noneconomic  residual interest" unless,
at the  time of the  transfer,  (i) the  present  value of the  expected  future
distributions  on the  residual  interest  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 on each
excess inclusion.  The anticipated  excess inclusions and the present value rate
are  determined  in the same  manner  as set  forth  above  under  "Disqualified
Organizations."  The REMIC  Regulations  explain that 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 safe harbor is provided if (i) the transferor conducted, at the time of
the  transfer,  a reasonable  investigation  of the  financial  condition of the
transferee and found that the transferee historically had paid its debts as they
came due and found no significant evidence to indicate that the transferee would
not  continue  to pay its  debts as they  came due in the  future,  and (ii) the
transferee  represents to the transferor that it understands that, as the holder
of a noneconomic residual interest,  the transferee may incur tax liabilities in
excess of cash flows  generated by the interest and that the transferee  intends
to pay taxes  associated with holding the residual  interest as they become due.
The Pooling  Agreement with respect to each Series of Certificates  will require
the  transferee  of a Residual  Certificate  to  certify  to the  matters in the
preceding  sentence as part of the affidavit  described  above under the heading
"Disqualified Organizations."

     Foreign  Investors.  The REMIC  Regulations  provide that the transfer of a
Residual  Certificate  that has "tax avoidance  potential" to a "foreign person"
will be disregarded for all federal tax purposes.  This rule appears intended to
apply to a transferee who is not a "U.S. Person" (as defined below), unless such
transferee's  income is  effectively  connected  with the  conduct of a trade or
business within the United States. A Residual  Certificate is deemed to have tax
avoidance potential unless at the time of the transfer,  (i) the future value of
expected  distributions equals at least 30% of the anticipated excess inclusions
after  the  transfer,  and  (ii)  the  transferor  reasonably  expects  that the
transferee 


                                       52
<PAGE>

will  receive  sufficient  distributions  from the REMIC at or after the time at
which the  excess  inclusions  accrue  (and  prior to the end of the  succeeding
taxable year) for the  accumulated  withholding tax liability to be paid. If the
non-U.S.  Person transfers the Residual  Certificate back to a U.S. Person,  the
transfer  will be  disregarded  and the foreign  transferor  will continue to be
treated as the owner unless  arrangements are made so that the transfer does not
have the  effect of  allowing  the  transferor  to avoid tax on  accrued  excess
inclusions.

     The  Pooling  Agreement  and,  if  applicable,  the  Prospectus  Supplement
relating  to a  Series,  may  provide  that a  Residual  Certificate  may not be
purchased  by or  transferred  to any  person  that is not a U.S.  Person or may
describe the  circumstances  and restrictions  pursuant to which such a transfer
may be made.  The term "U.S.  Person"  means a citizen or resident of the United
States,  a  corporation,  partnership or other entity created or organized in or
under the laws of the United States or any  political  subdivision  thereof,  an
estate that is subject to United  States  federal  income tax  regardless of the
source of its  income or a trust,  if, (a) for  taxable  years  beginning  after
December  31,  1996  (or  after  August  20,  1996 if the  trustee  has made the
applicable  election),  a court  within  the United  States is able to  exercise
primary  supervision  over the  administration  of such  trust,  and one or more
United  States  fiduciaries  have  the  authority  to  control  all  substantial
decisions  of such  trust,  or (b) for all other  taxable  years,  such trust is
subject to United  States  federal  income tax  regardless  of the source of its
income.

  Sale or Exchange of a Residual Certificate

     Upon the sale or exchange of a Residual  Certificate,  the Residual  Holder
will recognize gain or loss equal to the excess,  if any, of the amount realized
over the  adjusted  basis (as  described  above  under  "--Taxation  of Residual
Certificates--Basis  and  Losses")  of such  Residual  Holder  in such  Residual
Certificate  at the time of the sale or exchange.  In addition to reporting  the
taxable income of the REMIC,  a Residual  Holder will have taxable income to the
extent that any cash  distribution  to it from the REMIC  exceeds such  adjusted
basis on that  Distribution  Date.  Such income will be treated as gain from the
sale  or  exchange  of  its  Residual  Certificate.  It  is  possible  that  the
termination  of the REMIC may be  treated  as a sale or  exchange  of a Residual
Holder's  Residual  Certificate,  in which case,  if the Residual  Holder has an
adjusted  basis in its Residual  Certificate  remaining when its interest in the
REMIC terminates,  and if it holds such Residual  Certificate as a capital asset
under Code Section 1221,  then it will  recognize a capital loss at that time in
the amount of such remaining adjusted basis.

     Any gain on the sale of a Residual  Certificate will be treated as ordinary
income  (i)  if a  Residual  Certificate  is  held  as  part  of  a  "conversion
transaction"  as defined in Code Section  1258(c),  up to the amount of interest
that  would  have  accrued  on  the  Residual  Holder's  net  investment  in the
conversion  transaction at 120% of the  appropriate  applicable  Federal rate in
effect at the time the Residual  Holder entered into the  transaction  minus any
amount  previously  treated  as  ordinary  income  with  respect  to  any  prior
disposition  of property that was held as a part of such  transaction or (ii) in
the case of a  non-corporate  taxpayer,  to the extent such taxpayer has made an
election  under  Code  Section  163(d)(4)  to have net  capital  gains  taxed as
investment income at ordinary income rates. In addition, gain or loss recognized
from the sale of a Residual  Certificate by certain banks or thrift institutions
will be treated as ordinary income or loss pursuant to Code Section 582(c).

     The Conference  Committee  Report to the 1986 Act provides that,  except as
provided in Treasury  regulations yet to be issued,  the wash sale rules of Code
Section  1091 will apply to  dispositions  of  Residual  Certificates  where the
seller of the  Residual  Certificate,  during  the period  beginning  six months
before the sale or  disposition  of the residual  interest and ending six months
after such sale or disposition,  acquires (or enters into any other  transaction
that results in the  application of Code Section 1091) any residual  interest in
any REMIC or any  interest  in a "taxable  mortgage  pool"  (such as a non-REMIC
owner trust) that is economically comparable to a Residual Certificate.

  Mark to Market Regulations

     Prospective  purchasers of the Residual  Certificates  should be aware that
the Internal  Revenue Service has issued final  regulations (the "Mark to Market
Regulations")  under  Code  Section  475  relating  to  the  requirement  that a
securities  dealer mark to market  securities  held for sale to customers.  This
mark-to-market  requirement applies to all securities of a dealer, except to the
extent  that the  dealer has  specifically  identified  a  security  as held for
investment.  The Mark to Market  Regulations  provide that, for purposes of this
mark-to-market  requirement, a Residual Certificate is not treated as a security
and thus may not be marked to market.  The Mark to Market  Regulations  apply to
all Residual Certificates acquired on or after January 4, 1995.

                                       53
<PAGE>

TAXES THAT MAY BE IMPOSED ON THE REMIC

  Prohibited Transactions

     Income  from  certain   transactions  by  the  REMIC,   called   prohibited
transactions,  will not be part of the  calculation of income or loss includible
in the federal income tax returns of Residual Holders,  but rather will be taxed
directly to the REMIC at a 100% rate. Prohibited  transactions generally include
(i) the  disposition  of  qualified  mortgages  other than for (a)  substitution
within two years of the  Startup  Day for a defective  (including  a  defaulted)
obligation (or the repurchase in lieu of substitution of a defective  (including
a defaulted) obligation at any time), or for any qualified mortgage within three
months of the Startup Day, (b) foreclosure,  default, or reasonably  foreseeable
default of a qualified  mortgage,  (c) bankruptcy or insolvency of the REMIC, or
(d) a qualified (complete)  liquidation,  (ii) the receipt of income from assets
that  are not the  type of  mortgage  loan or  investments  that  the  REMIC  is
permitted to hold, (iii) the receipt of compensation  for services,  or (iv) the
receipt of gain from disposition of cash flow investments other than pursuant to
a qualified  liquidation.  Notwithstanding  (i) and (iv), it is not a prohibited
transaction to sell REMIC property to prevent a default on a regular interest as
a result of a default on qualified  mortgages or to  facilitate a clean-up  call
(generally,  an optional  termination made to save administrative  costs when no
more than a small percentage of the CitiCertificates is outstanding).  The REMIC
Regulations  indicate  that  a  substantial  modification  of  a  Mortgage  Loan
generally  will not be treated as a disposition if it is occasioned by a default
or reasonably  foreseeable  default,  an assumption  of the Mortgage  Loan,  the
waiver of a due-on-sale clause or  due-on-encumbrance  clause, or the conversion
of an  interest  rate by a  mortgagor  pursuant  to the  terms of a  convertible
adjustable rate Mortgage Loan.

  Contributions to the REMIC After the Startup Day

     In general, the REMIC will be subject to tax at a 100% rate on the value of
any  property  contributed  to the REMIC after the Startup Day.  Exceptions  are
provided  for cash  contributions  to the REMIC  (i)  during  the  three  months
following the Startup Day,  (ii) made to a qualified  reserve fund by a Residual
Holder, (iii) in the nature of a guarantee,  (iv) made to facilitate a qualified
liquidation  or  clean-up  call,  and (v) as  otherwise  permitted  in  Treasury
regulations yet to be issued.

  Net Income from Foreclosure Property

     A REMIC will 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.  Generally,  property acquired by
deed in lieu of  foreclosure  would be treated as  "foreclosure  property" for a
period not exceeding the close of the third  calendar year following the year of
acquisition,  with a possible  extension.  Net income from foreclosure  property
generally  means gain from the sale of  foreclosure  property  that is inventory
property and gross income from foreclosure  property other than qualifying rents
and other qualifying income for a real estate investment trust.

LIQUIDATION OF THE REMIC

     If a 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 the 90-day period  beginning on
such date, the REMIC will not be subject to the prohibited  transaction rules on
the sale of its  assets,  provided  that the REMIC  credits  or  distributes  in
liquidation all of the sale proceeds plus its cash (other than amounts  retained
to meet  claims) to holders of all  Certificates  within the 90-day  period.  An
early  termination  of the Trust  effected by a repurchase  by the Issuer of all
remaining  Mortgage Loans or Mortgage  Certificates  when the adjusted  balances
thereof have declined to the percentage  specified for a particular  Series, and
the distribution to holders of Certificates of the proceeds of such sale and any
remaining  assets of the  REMIC,  is  contingent  upon  receipt of an opinion of
counsel or other evidence that such repurchase and distribution  will constitute
a "qualified  liquidation" within the meaning of Code Section  860F(a)(4)(A) and
will not adversely affect the REMIC status of the Trust.

ADMINISTRATIVE MATTERS

     As a REMIC,  the Trust must maintain its books on a calendar year basis and
must file federal  income tax returns in a manner  similar to a partnership  for
federal income tax purposes.  The form for such returns is Form 1066,  U.S.


                                       54
<PAGE>

Real Estate  Mortgage  Investment  Conduit  Income Tax Return.  The Trustee with
respect  to a Series  will be  required  to sign  the  REMIC's  annual  returns.
Treasury  regulations  provide  that,  except  where there is a single  Residual
Holder for an entire  taxable year,  the REMIC will be subject to the procedural
and administrative  rules of the Code applicable to partnerships,  including the
determination of any adjustments to, among other things,  items of REMIC income,
gain,  loss,  deduction,  or credit by the Internal Revenue Service in a unified
administrative  proceeding. As long as the Issuer remains a Residual Holder with
respect to any portion of a Class of Residual  Certificates,  the Issuer will be
obligated  to act as "tax  matters  person," as defined in  applicable  Treasury
regulations,  with respect to the related Series.  If the Issuer or an affiliate
is not a Residual Holder,  the Residual Holder holding the largest percentage of
the Residual Certificates will be obligated to act as tax matters person and, by
purchase of a Residual Certificate, will irrevocably designate the Issuer as its
agent to act as tax matters  person and agree to execute any documents  required
to effectuate  the actions of the Issuer in its capacity as tax matters  person.
The tax matters  person with  respect to a Series will be, in order of priority,
(i) the  Issuer  or an  affiliate  thereof,  in its  capacity  as a holder  of a
Residual   Certificate   or  as  the  agent  of  the  holders  of  the  Residual
Certificates,  and (ii) if the Issuer or an affiliate  thereof is not a Residual
Holder  and is not  permitted  to act as tax  matters  person or as agent of the
holders of  Residual  Certificates  under  applicable  Treasury  regulations,  a
Residual  Holder or such other person as may be  specified  pursuant to Treasury
regulations.

LIMITATIONS ON DEDUCTION OF CERTAIN EXPENSES

     An  investor  who is an  individual,  estate,  or trust  will be subject to
limitation with respect to certain itemized deductions described in Code Section
67, to the extent  that such  deductions,  in the  aggregate,  do not exceed two
percent of the investor's  adjusted gross income.  In addition,  Code Section 68
provides that itemized  deductions  otherwise allowable for a taxable year of an
individual  taxpayer  will be reduced by the lesser of (i) 3% of the excess,  if
any, of adjusted  gross income over  $100,000  ($50,000 in the case of a married
individual  filing a separate  return) (in each case,  as adjusted for post-1991
inflation), or (ii) 80% of the amount of itemized deductions otherwise allowable
for such year. In the case of a REMIC,  such  deductions  may include  Servicing
Compensation  (exclusive of Additional Servicing  Compensation,  if any) for the
related  Series,  servicing  fees paid to the  Servicer,  to the servicer of the
Mortgage Loans, or to the issuer or guarantor of the Mortgage  Certificates,  or
any similar  expenses  allocated to the REMIC with respect to a regular interest
it holds in another REMIC. Such investors who hold Certificates  either directly
or  indirectly  through  certain  pass-through  entities may have their pro rata
share of such expenses  allocated to them as additional gross income, but may be
subject to such  limitations on deductions.  In addition,  such expenses are not
deductible at all for purposes of computing the alternative minimum tax, and may
cause such  investors to be subject to  significant  additional  tax  liability.
Temporary  Treasury  regulations  provide that such expenses and a corresponding
additional  amount of gross income  generally  are to be  allocated  entirely to
holders  of the  Residual  Certificates  in the case of a REMIC  that  would not
qualify as a fixed investment trust in the absence of a REMIC election. However,
such additional income and limitations on deductions will apply to the allocable
portion of such expenses to holders of  CitiCertificates,  as well as to holders
of Residual  Certificates,  where such  CitiCertificates  are issued in a manner
that is similar to  pass-through  certificates in a fixed  investment  trust. In
general,  such  allocable  portion will be determined  based on the ratio that a
holder's income from the CitiCertificate,  determined on a daily basis, bears to
the income of all holders of  CitiCertificates  and Residual  Certificates  with
respect  to a REMIC.  As a  result,  individuals,  estates,  or  trusts  holding
CitiCertificates  (either  directly  or  indirectly  through  a  grantor  trust,
partnership,  S  corporation,  REMIC,  or certain  other  pass-through  entities
described in the  foregoing  temporary  Treasury  regulations)  may have taxable
income  in  excess  of  the   interest   income  at  the  Stated  Rate  on  such
CitiCertificates  that are issued in a single  class or  otherwise  consistently
with fixed  investment  trust status or in excess of the amount of cash received
for the related period on Residual  Certificates.  Unless indicated otherwise in
the applicable Prospectus Supplement, all such expenses will be allocable to the
Residual Certificates.

TAXATION OF CERTAIN FOREIGN INVESTORS

  CitiCertificates

     Interest,  including  original issue discount,  distributable to holders of
CitiCertificates  who are  non-resident  aliens,  foreign  corporations or other
Non-U.S. Persons (i.e., any person who is not a U.S. Person), will be considered
"portfolio interest" and, therefore, generally will not be subject to 30% United
States  withholding  tax  provided  that  such  Non-U.S.  Person  (i)  is  not a
"10-percent  shareholder"  within the meaning of Code Section  871(h)(3)(B) or a

                                       55
<PAGE>

controlled foreign corporation  described in Code Section  881(c)(3)(C) and (ii)
provides the Trustee,  or the person who would otherwise be required to withhold
tax from such distributions under Code Section 1441 or 1442, with an appropriate
certification,  signed under  penalties of perjury,  identifying  the beneficial
owner  and  stating,  among  other  things,  that  the  beneficial  owner of the
CitiCertificate  is a  Non-U.S.  Person.  If such  certification,  or any  other
required  certification,  is not  provided,  30%  withholding  will apply unless
reduced  or  eliminated  pursuant  to an  applicable  tax  treaty or unless  the
interest is effectively connected with the conduct of a trade or business within
the United States by such  Non-U.S.  Person.  In the latter case,  such Non-U.S.
Person will be subject to United  States  federal  income tax at regular  rates.
Investors  who are  Non-U.S.  Persons  should  consult  their  own tax  advisors
regarding the specific tax consequences to them of owning a CitiCertificate.

     The Internal  Revenue Service  recently issued final  regulations (the "New
Regulations")   which  would  provide  alternative  methods  of  satisfying  the
certification  requirement  described  above.  The New Regulations are effective
January  1,  1999,  although  valid  withholding  certificates  that are held on
December  31,  1998,  remain valid until the earlier of December 31, 1999 or the
due date of  expiration  of the  certificate  under  the rules as  currently  in
effect. The New Regulations,  in the case of CitiCertificates  held by a foreign
partnership,  that (x) the  certification  described  above be  provided  by the
partners rather than by the foreign  partnership and (y) the partnership provide
certain information, including a United States taxpayer identification number. A
look-through  rule  would  apply in the case of  tiered  partnerships.  Non-U.S.
Persons should consult their own tax advisors  concerning the application of the
certification requirements in the New Regulations.

  Residual Certificates

     The Conference Committee Report to the 1986 Act indicates that amounts paid
to Residual  Holders  who are  Non-U.S.  Persons  are  treated as  interest  for
purposes  of the 30% (or lower  treaty  rate)  United  States  withholding  tax.
Treasury  regulations  provide that amounts  distributed to Residual Holders may
qualify  as  "portfolio  interest,"  subject  to  the  conditions  described  in
"CitiCertificates"  above, but only to the extent that (i) the Mortgage Loans or
the mortgage loans underlying the Mortgage  Certificates  were issued after July
18,  1984 and (ii) the Trust or the  segregated  pool of assets  therein  (as to
which  a  separate  REMIC  election  will  be  made),   to  which  the  Residual
Certificates relate,  consists of obligations issued in "registered form" within
the meaning of Code Section  163(f)(1).  Generally,  Mortgage Loans will not be,
but  Mortgage  Certificates  or  CitiCertificates  representing  either  regular
interests in another Trust or a segregated  pool of assets within the Trust will
be, considered  obligations issued in registered form.  Furthermore,  a Residual
Holder will not be entitled to any exemption  from the 30%  withholding  tax (or
lower treaty rate) to the extent of that  portion of REMIC  taxable  income that
constitutes    an   "excess    inclusion."    See    "--Taxation   of   Residual
Certificates--Limitations  on  Offset  or  Exemption  of REMIC  Income."  If the
amounts distributed to Residual Holders who are Non-U.S. Persons are effectively
connected  with the conduct of a trade or business  within the United  States by
such Non-U.S.  Persons,  30% (or lower treaty rate)  withholding will not apply.
Instead,  the amounts  paid to such  Non-U.S.  Persons will be subject to United
States  federal  income  tax at regular  rates.  If 30% (or lower  treaty  rate)
withholding is applicable, such amounts generally will be taken into account for
purposes of  withholding  only when paid or otherwise  distributed  (or when the
Residual  Certificate  is disposed of under rules  similar to  withholding  upon
disposition  of  debt  instruments  that  have  original  issue  discount).  See
"--Taxation of Residual  Certificates--Tax-Related  Restrictions  on Transfer of
Residual  Certificates--Foreign  Investors,"  above  concerning the disregard of
certain transfers having "tax avoidance  potential."  Investors who are Non-U.S.
Persons  should  consult  their own tax  advisors  regarding  the  specific  tax
consequences to them of owning a Residual Certificate.

BACKUP WITHHOLDING

     Distributions  made on the  CitiCertificates  and proceeds from the sale of
the  CitiCertificates to or through certain brokers may be subject to a "backup"
withholding  tax  under  Code  Section  3406  of  31% of  "reportable  payments"
(including interest  distributions,  original issue discount, and, under certain
circumstances,  distributions in reduction of Stated Amount) unless, in general,
the  holder  of the  CitiCertificate  complies  with  certain  reporting  and/or
certification procedures, including the provision of its taxpayer identification
number to the  Trustee,  its agent or the  broker who  effected  the sale of the
CitiCertificate,  or such  Certificateholder  is otherwise  an exempt  recipient
under  applicable   provisions  of  the  Code.  Any  amounts  so  withheld  from
distributions on the CitiCertificates  would be refunded by the Internal Revenue
Service  or  allowed  as a  credit  against  the  holder's  federal  income  tax
liability.  The New Regulations  change certain of the rules relating to certain
presumptions  currently  available relating to


                                       56
<PAGE>

information  reporting  and backup  withholding.  Non-U.S.  Persons are urged to
contact  their own tax  advisors  regarding  the  application  to them of backup
withholding and information reporting.

REPORTING REQUIREMENTS

     Reports  of accrued  interest,  original  issue  discount  and  information
necessary to compute the accrual of market discount will be made annually to the
Internal   Revenue   Service  and  to  individuals,   estates,   non-exempt  and
non-charitable  trusts,  and  partnerships  who are either  holders of record of
CitiCertificates or beneficial owners who own CitiCertificates  through a broker
or middleman  as nominee.  All  brokers,  nominees and all other  non-tax-exempt
holders of record of CitiCertificates (including corporations, non-calendar year
taxpayers,  securities or commodities  dealers,  real estate investment  trusts,
investment  companies,  common trust funds,  thrift  institutions and charitable
trusts) may request such information for any calendar quarter by telephone or in
writing  by  contacting  the  person  designated  in  Internal  Revenue  Service
Publication  938 with respect to a particular  Series of  Certificates.  Holders
through nominees must request such information from the nominee.

     The  Internal  Revenue  Service's  Form 1066,  U.S.  Real  Estate  Mortgage
Investment Conduit Income Tax Return, has an accompanying  Schedule Q, Quarterly
Notice  to  Residual  Interest  Holders  of  REMIC  Taxable  Income  or Net Loss
Allocation.  Treasury  regulations  require that  Schedule Q be furnished by the
REMIC  to each  Residual  Holder  by the last day of the  month  following  each
calendar  quarter (41 days after the end of a quarter  under  proposed  Treasury
regulations) in which the REMIC is in existence.

     Treasury   regulations   require   that,   in  addition  to  the  foregoing
requirements,  information must be furnished  quarterly to Residual Holders and,
if  applicable,  furnished  annually  to holders of  CitiCertificates  and filed
annually with the Internal  Revenue Service  concerning Code Section 67 expenses
(see  "Limitations on Deduction of Certain  Expenses"  above)  allocable to such
holders.  Furthermore,  under such  regulations,  information  must be furnished
quarterly   to   Residual   Holders,    furnished   annually   to   holders   of
CitiCertificates,   and  filed  annually  with  the  Internal   Revenue  Service
concerning  the  percentage of the REMIC's  assets  meeting the qualified  asset
tests   described   above  under  "Status  of   CitiCertificates   and  Residual
Certificates."

                             PLANS OF DISTRIBUTION

     Certificates  are being offered hereby in Series (each Series  evidencing a
separate  Pool)  through  one  or  more  of the  methods  described  below.  The
Prospectus  Supplement  prepared  for each  Series will  describe  the method of
offering  being  utilized for that Series and will state the public  offering or
purchase  price of such  Series,  or the  method  by which  such  price is to be
determined, and the net proceeds from such sale.

     The Issuer intends that  Certificates will be offered through the following
methods from time to time and that  offerings may be made  concurrently  through
more than one of these  methods or that an  offering of a  particular  series of
Certificates may be made through one or more of these methods:

     1.   By negotiated firm commitment  underwriting and public  re-offering by
          underwriters;

     2.   By placements by the Issuer with investors  through dealers or agents;
          and

     3.   By secondary  offerings by an affiliate  thereof in any of the manners
          set forth above.

     If underwriters are used in a sale of any  Certificates,  such Certificates
will be  acquired  by the  underwriters  for their own account 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  to be
determined  at the  time of sale or at the  time of  commitment  therefor.  Firm
commitment  underwriting  and public  re-offering  by  underwriters  may be done
through  underwriting  syndicates  led by one or more managing  underwriters  or
through one or more firms acting alone.  The specific  managing  underwriter  or
underwriters,  if any, with respect to the offer and sale of a particular series
of  Certificates  will be set  forth on the cover of the  Prospectus  Supplement
relating to such Series and the members of the underwriting  syndicate,  if any,
will be named in such  Prospectus  Supplement.  The Prospectus  Supplement  will
describe any  discounts and  commissions  to be allowed or paid by the Issuer to
the underwriters, any other items constituting underwriting compensation and any
discounts and  commissions  to be allowed or paid to the dealers or agents.  The
obligations of the underwriters will be subject to certain conditions precedent.
The  underwriters  with respect to a sale of  Certificates  will be obligated to
purchase all such  Certificates  if any are  purchased.  The Issuer and 


                                       57
<PAGE>

Citicorp  will  indemnify  the  several   underwriters   against  certain  civil
liabilities, including liabilities under the Securities Act.

     The  Prospectus  Supplement  with  respect  to any  Series of  Certificates
offered other than through  underwriters will contain information  regarding the
nature of such offering and any agreements to be entered into between the Issuer
and dealers for the Certificates of such Series.

     Affiliates  of the Issuer may act as agents or  underwriters  in connection
with the sale of a Series of Certificates. Any affiliate of the Issuer so acting
will be named,  and its affiliation with the Issuer and Citicorp  described,  in
the Prospectus Supplement with respect to such Series.

     The Issuer  anticipates  that the  Certificates  will be sold  primarily to
institutional  investors.  Purchasers of Certificates,  including dealers,  may,
depending  on the facts and  circumstances  of such  purchases,  be deemed to be
"underwriters"  within the  meaning of the  Securities  Act in  connection  with
re-offers and sales by them of Certificates.  Certificateholders  should consult
with their legal advisors in this regard prior to any such re-offer or sale.

                                    EXPERTS

     Consolidated  financial statements of Citicorp and subsidiaries included in
Citicorp's Annual Report and Form 10-K for 1996 have been incorporated herein by
reference  in reliance  upon the report set forth  therein of KPMG Peat  Marwick
LLP,  independent  certified public accountants,  and upon the authority of said
firm as experts in accounting and auditing.  The report of KPMG Peat Marwick LLP
covering the December 31, 1996 financial  statements  refers to the fact that in
1994 Citicorp adopted Statement of Financial  Accounting  Standards ("SFAS") No.
112,  "Employers'  Accounting  for  Postemployment  Benefits"  and SFAS No. 115,
"Accounting for Certain Investments in Debt and Equity Securities."


                                       58
<PAGE>


                                                                      APPENDIX A

                 THE MORTGAGE LOANS AND CITIMORTGAGECERTIFICATES

     This Appendix describes the Mortgage Loans contained in a Pool (including a
pool  underlying  a  CitiMortgageCertificate),  certain  pooling  and  servicing
arrangements  with respect to a Pool, the insurance  arrangements  in respect of
such Mortgage Loans and additional material in connection therewith.

     Certain  statements  contained  in this  Appendix  may be  wholly or partly
inapplicable to a particular  Series of  Certificates.  Any material  divergence
from the following  descriptions  of the Mortgage Loans will be discussed in the
applicable  Prospectus  Supplement.  Section  references herein preceded by "PA"
refer to Pooling Agreement sections.

THE MORTGAGE LOANS

  General

     When  used in this  Appendix  A, the term  "Pool"  refers  to either a Pool
consisting  of  Mortgage  Loans  or  a  pool  of  Mortgage  Loans  underlying  a
CitiMortgageCertificate. A Pool consisting in whole or in part of Mortgage Loans
originated  by  Citibank  as well  as a pool of  Mortgage  Loans  originated  by
Citibank and which underlie a  CitiMortgageCertificate  are each herein referred
to as a "Citibank Pool." A Pool consisting in whole or in part of Mortgage Loans
originated or acquired by CMI as well as a pool of Mortgage Loans  originated or
acquired by CMI and which underlie a CitiMortgageCertificate  is herein referred
to as a "CMI  Pool." A Pool  consisting  in whole or in part of  Mortgage  Loans
originated  or acquired by CitiMae or its  affiliates is referred to herein as a
"CitiMae Pool." A Pool consisting in whole or in part of Mortgage Loans acquired
by CMSI from other  affiliates as well as a pool of Mortgage  Loans  acquired by
CMSI from  other  affiliates  and which  underlie a  CitiMortgageCertificate  is
herein  referred to as a "CMSI Pool." A Pool  consisting  in whole or in part of
Mortgage  Loans  originated  or  acquired  by CFSB as well as a pool of Mortgage
Loans    originated    or    acquired    by   CFSB   and   which    underlie   a
CitiMortgageCertificate  is  herein  referred  to  as  a  "CFSB  Pool."  A  Pool
consisting  in whole or in part of  Mortgage  Loans  originated  by Third  Party
Originators  as well as a pool of  Mortgage  Loans  originated  by  Third  Party
Originators and which underlie a  CitiMortgageCertificate  is herein referred to
as a "Third  Party  Pool."  Each Pool may include  either  fixed  interest  rate
Mortgage Loans (each such Pool, a "Fixed Rate Pool") or adjustable interest rate
Mortgage  Loans  (each  such Pool,  an "ARM  Pool").  A portion of the  interest
component  of a  Mortgage  Loan  may  be  retained  by  an  Originator  and  not
transferred to a Pool. The information  contained herein in respect of CMI Pools
applies  generally to Mortgage  Loans  originated  by other  affiliates  (except
CitiMae) and  contained  in CMSI Pools and CMI Pools.  Such  Mortgage  Loans may
include mortgage loans originated or acquired by CFSB or originated by Citibank.
The information  contained herein in respect of CitiMae Pools applies  generally
to the Mortgage Loans  originated by CitiMae  Originators in accordance with the
terms of the CitiMae  Sellers'  Guide.  Each Pool will include  loans (the "Real
Estate Loans") evidenced by promissory notes secured by first mortgages or deeds
of trust on one- to four-family residences. A Pool may also contain, in addition
to Real Estate Loans,  cooperative  apartment  loans (the  "Cooperative  Loans")
evidenced by  promissory  notes (the  "Cooperative  Notes")  secured by security
interests  in  shares  issued  by  private,   non-profit,   cooperative  housing
corporations  (the  "Cooperatives")  and in the  related  proprietary  leases or
occupancy agreements granting exclusive rights to occupy specific dwelling units
in such  cooperatives'  buildings  (the one- to  four-family  residences and the
shares issued by  cooperatives  are  hereinafter  referred to as the  "Mortgaged
Properties").  Unless  otherwise  provided  in the  Prospectus  Supplement,  the
buildings  owned  by  such   cooperatives  will  be  located  in  the  New  York
Metropolitan  Area in the  States  of New  York  and  New  Jersey,  the  Chicago
Metropolitan Area in the State of Illinois and the Washington  Metropolitan Area
in the District of Columbia and the State of Maryland.  The Mortgaged Properties
may consist of (i) detached  homes,  (ii)  attached  homes (one- to  four-family
units having a common wall), (iii) units located in condominiums or planned unit
developments and (iv) such other types of homes or units as are set forth in the
Prospectus   Supplement.   The  Mortgaged   Properties  may  include  investment
properties and vacation and second homes, and may include  leasehold  interests.
The  Mortgaged  Properties  will  be  located  in  states  as set  forth  in the
Prospectus  Supplement.  Each  Mortgage Loan will be selected by the Issuer from
among those  originated  or acquired by the relevant  Originator in the ordinary
course of its business  activities or acquired by the relevant  Originator  from
another Originator.

     All  Mortgage  Loans  will  (i)  have  individual   principal  balances  at
origination of not more than  $2,500,000,  (ii) have monthly payments due on the
first day of each month, (iii) be secured by Mortgaged Properties located in one

                                      A-1
<PAGE>


of the fifty  states of the United  States,  the  District of  Columbia,  or the
Commonwealth  of Puerto Rico,  (iv) be fixed rate or adjustable rate loans which
may  provide  for full  amortization  of  principal,  deferral  of a portion  of
interest,  balloon payments of principal or have such other  characteristics  as
set forth in the related Prospectus  Supplement and (v) have original maturities
as specified in the related Prospectus Supplement. Unless otherwise specified in
the applicable  Prospectus  Supplement,  the original  principal  amount of each
Mortgage  Loan will not be more than 95% of the  Original  Value of the  related
Mortgaged  Property.  The  principal  amount  of the  "loan,"  for  purposes  of
computation  of  loan-to-value  ratios,  includes  the  amount of any part of an
origination  fee that is financed.  The financed  portion of the origination fee
will be less than 5% of the loan amount in each case.

     Unless otherwise stated in the applicable Prospectus Supplement, a Pool may
contain Real Estate Loans,  the original  terms of which were modified  prior to
their  inclusion  in  such  Pool  pursuant  to   modification   agreements  (the
"Modification  Agreements")  or  pursuant  to  modification,  consolidation  and
extension agreements (the "Consolidation  Agreements"). A Modification Agreement
generally  alters  only the stated  annual  interest  rate and (as a result) the
monthly  payment  amount  for a  Mortgage  Loan.  The  terms of a  Consolidation
Agreement may alter any one or more of the following: the type of Mortgage Loan,
the identity of a borrower or  borrowers,  the stated  annual  interest  rate or
manner of determining  such rate, the maturity date, the monthly  payment amount
or the  principal  amount  of  the  obligation  secured  by  the  mortgage.  The
Consolidation  Agreement amends the existing mortgage and the obligation secured
thereby.  If additional  principal  was advanced at the time of  amendment,  the
Consolidation Agreement consolidates the new mortgage relating to the additional
principal  with the existing  mortgage.  With respect to Real Estate Loans,  the
terms  of  which  were   modified   pursuant  to   Modification   Agreements  or
Consolidation  Agreements,   whenever  the  terms  "original,"  "originated"  or
"origination"  are  used in this  Prospectus  or any  Prospectus  Supplement  to
describe  certain  characteristics  of the Mortgage Loans on a particular  date,
generally  such terms  shall  refer to such  characteristics  (a) in the case of
Modification  Agreements,  at the original date of the extension of credit under
such  Mortgage  Loan  except for the stated  annual  interest  rate and  monthly
payment as stated above and (b) in the case of Consolidation  Agreements, at the
date of the applicable Consolidation Agreement and as modified thereby.

     It is  anticipated  that each Pool will consist  predominantly  of Mortgage
Loans  determined  by the Issuer to be secured by the primary  residence  of the
borrower (the "Mortgagor"). The sole basis for such determination will be either
(i) the  making of a  representation  by the  Mortgagor  at  origination  of the
Mortgage Loan either that the underlying  property will be used by the Mortgagor
for a period of at least six months every year or that the Mortgagor  intends to
use the underlying  property as a primary residence,  or (ii) a finding that the
address of the underlying  Mortgaged Property is the Mortgagor's mailing address
as reflected in the  Originator's  records.  The aggregate  Adjusted  Balance of
Mortgage  Loans  for  which  such  determination  shall  have  been made will be
disclosed in the applicable Prospectus Supplement or, if not known at the time a
Series is  offered,  set forth in a report on Form 8-K which  will be filed with
the Commission and made available to the  CitiCertificateholders  within 15 days
of the initial  issuance of a Series.  In the case of Mortgage  Loans which were
assumed by a new borrower  after  origination,  the  representation  made or the
information given by the original Mortgagor at origination in respect of (i) and
(ii)  above is used to  determine  such  disclosure  in the  related  Prospectus
Supplement and as set forth in a report on Form 8-K.

     The Issuer will  represent  that no Mortgage Loan in a Pool will be 30 days
or more  past due as of the  first day of the  month  during  which the  related
Series  is  issued  or has been 30 days or more  past due more  than once in the
12-month period immediately  preceding such day and, in the event that such Pool
consists  in whole or in part of Issuer  Certificates,  the  Issuer  will make a
representation  as to  delinquency  information  available  with  respect to the
Mortgage Loans in which such Issuer Certificates  evidence interests.  For other
representations  to be made by the Issuer  concerning  the Mortgage  Loans,  see
"--Assignment of Mortgage  Loans." In addition,  at the date of initial issuance
of any Series,  the aggregate Adjusted Balance of the Mortgage Loans included in
the related Pools will not be less than $20,000,000.  As used herein, references
to aggregate  principal  balances to be used for determining  weighted averages,
percentages  for  termination of the Pools,  or credit support  amounts (but not
repurchase prices) shall mean the scheduled principal balances thereof as of the
close of business on the first day of the  applicable  month (whether or not any
scheduled  payments  have been  received  on  subsequent  days)  less  Principal
Prepayments  thereon or in respect thereof received or posted prior to the close
of business on the business day preceding such first day (or, in the case of the
Cut-Off Date, any Principal  Prepayments  thereon or in respect thereof received
or posted  prior to the close of business on the  Cut-Off  Date) (the  "Adjusted
Balance").


                                      A-2
<PAGE>

     Property  securing  a Mortgage  Loan may be  encumbered  by a  subordinated
mortgage loan. Any such  subordinated  mortgage loan may have been originated by
an Affiliated Originator, either at the time of origination of the Mortgage Loan
or  otherwise.  The  Prospectus  Supplement  will not  include the amount of the
subordinated loan in the loan-to-value  calculation  included therein. It is the
policy of each Affiliated Originator to provide a subordinate loan in connection
with the  origination of the first  priority  Mortgage Loan only if the combined
amount  of such  loans  would  result in a  loan-to-value  ratio of 90% or less.
Primary  mortgage  insurance  is generally  not  required  for these loans.  The
proprietary  lease  or  occupancy  agreement  securing  a  Cooperative  Loan  is
generally  subordinate  to  any  blanket  mortgage  on the  related  cooperative
apartment  building  and/or  underlying  land.  Additionally,  in the  case of a
Cooperative  Loan, the  proprietary  lease or occupancy  agreement is subject to
termination  and the  cooperative  shares  are  subject to  cancellation  by the
cooperative  if  the  tenant-stockholder  fails  to  pay  maintenance  or  other
obligations or charges owed by such  tenant-stockholder.  See  "--Certain  Legal
Aspects of the Mortgage Loans--Cooperatives."

     Mortgage Loans  originated by Affiliated  Originators  and having  original
principal amounts exceeding 90% of Original Value will be covered,  and Mortgage
Loans having original  principal balances exceeding 80% but not more than 90% of
Original Value may be covered,  by primary  mortgage  insurance  against default
until the  outstanding  principal  amount is reduced to at least 80% of Original
Value through  principal  payments made by the Mortgagor or, in the case of CFSB
Pools  containing  Mortgage  Loans  originated or acquired by the California and
Florida branches of CFSB, until the outstanding principal amount thereof is less
than or equal to 80% of either the Original  Value  through  principal  payments
made by the  Mortgagor or the value  thereof as  determined  by a new  appraisal
delivered  subsequent to origination.  So long as it is in effect,  such primary
mortgage  insurance  will cover  losses  arising  from a default up to an amount
ranging from 12% to 30% of the principal amount of the Mortgage Loan outstanding
from time to time.  Prior to 1986, the Affiliated  Originators did not generally
make one- to four-family real estate loans with  loan-to-value  ratios above 80%
unless such Originator had obtained primary mortgage  insurance  coverage.  From
1986 through January 1993, each Affiliated  Originator originated mortgage loans
with  loan-to-value  ratios  in  excess  of 80% but not more  than  90%  without
obtaining  primary  mortgage  insurance.  Since  February  1993, it has been the
policy of each Affiliated Originator not to make one- to four-family real estate
loans with  loan-to-value  ratios above 80% without  obtaining  primary mortgage
insurance.  The policy of CitiMae  Originators  is to require  primary  mortgage
insurance for one- to four-family  real estate loans with current  loan-to-value
ratios in excess of 80%.

     Each Prospectus Supplement will include,  among other things,  information,
as of the date of such Prospectus Supplement and to the extent then known to the
Issuer,  as to (i) the aggregate  Adjusted  Balance of the Mortgage  Loans to be
delivered  into the related Pool and the years of origination  thereof,  (ii) if
Converted Mortgage Loans with an aggregate Adjusted Balance exceeding 10% of the
aggregate  Adjusted  Balance of all Mortgage Loans in the related Pool are to be
delivered,  the aggregate Adjusted Balance of any such Converted Mortgage Loans,
(iii) the original  loan-to-value  ratios of the Mortgage  Loans (which will not
include the amount of any subordinated loan in such loan-to-value  calculation),
(iv) the types of Mortgaged  Properties  securing the  Mortgage  Loans,  (v) the
geographic   distribution   of  the   Mortgaged   Properties,   prepared   on  a
state-by-state  basis for  states  where  Mortgage  Loans  having  an  aggregate
Adjusted  Balance  exceeding 10% of the aggregate  Adjusted  Balance of Mortgage
Loans in the related Pool are located,  (vi) if Buydown  Mortgage  Loans with an
aggregate  Adjusted Balance  exceeding 10% of the aggregate  Adjusted Balance of
all  Mortgage  Loans in the  related  Pool are to be  delivered,  the  aggregate
Adjusted  Balance  of  Buydown  Mortgage  Loans in the  related  Pool,  (vii) if
Leasehold  Loans  with  an  aggregate  Adjusted  Balance  exceeding  10%  of the
aggregate  Adjusted  Balance of all Mortgage Loans in the related Pool are to be
delivered, the aggregate Adjusted Balance of Leasehold Loans in the related Pool
and (viii) if 15-year,  fixed rate  tiered-payment  Mortgage Loans originated by
CFSB's  California  branches and providing for a prepayment  penalty  during the
first  12  months  following  origination  with an  aggregate  Adjusted  Balance
exceeding 10% of the  aggregate  Adjusted  Balance of all Mortgage  Loans in the
related  Pool  are to be  delivered,  the  aggregate  Adjusted  Balance  of such
Mortgage  Loans in the related  Pool.  In the event  specific  information  with
respect to the Pool is not known at the time a Series is offered,  more  general
information of the nature  described  above will be provided in such  Prospectus
Supplement and the specific  information  described above will be set forth in a
report on Form 8-K which will be filed with the Commission and made available to
Certificateholders  of the Series within 15 days of the initial issuance of such
Series.

     The Issuer will be responsible for administering and servicing the Mortgage
Loans purchased, directly or indirectly, by the Trust from CMI, Citibank or CFSB
or their  affiliates  (the  "Affiliated  Originators")  and  will act as  master
servicer with respect to Mortgage Loans  purchased,  directly or indirectly,  by
the Trust (a) from CitiMae or its affiliates  who purchased  mortgage loans from
seller-servicers  approved  by CitiMae or from such  seller-servicers 


                                      A-3
<PAGE>

("CitiMae  Originators") or (b) from Third Party  Originators,  and will perform
such  functions  as are  described  in the  Pooling  Agreement.  The  Issuer may
delegate  any of its duties  under the  Pooling  Agreement  to any  corporation,
including a corporation  more than 50% of the stock of which is owned,  directly
or indirectly, by Citicorp. Unless otherwise disclosed in the related Prospectus
Supplement,  if the Mortgage Loans are included directly in the Pool, the Issuer
will subcontract its duties as servicer of the Affiliated  Mortgage Loans to CMI
(or its  designated  subservicer)  and its  duties as master  servicer  (a) with
respect to the CitiMae  Mortgage  Loans to CitiMae  and (b) with  respect to the
Third Party Loans sold by Third Party Originators on a servicing-retained basis,
to the then-current servicers of such Third Party Loans (which will be qualified
to so  service  the  Third  Party  Loans  in  accordance  with  CMI's  servicing
guidelines).  CitiMae  will  subcontract  such  duties to  various  third  party
servicers qualified to do so in accordance with CitiMae's servicing  guidelines.
Such delegation does not relieve the Issuer of its  responsibility  with respect
to such duties (the Issuer and CMI in such capacity,  the "Servicer" and CitiMae
and such  servicers of Third Party Loans,  in such  capacity,  "Subservicer"  or
"Master  Servicer").  The Servicer may at any time  delegate or  subcontract  or
assign  any of its  duties  as  servicer  under  any  Pooling  Agreement  to any
corporation,  including  a  corporation  more  than 50% of the stock of which is
owned, directly or indirectly,  by Citicorp. In the event of any such delegation
or  subcontract,  the  Servicer  will remain  responsible  for the  delegee's or
subcontractor's   performance  in  accordance  with  the  Pooling  Agreement.  A
servicing  fee will be paid to the  Servicer  with  respect  to each  payment of
interest received with respect to each Mortgage Loan. Such servicing fee paid to
the Servicer may be in an amount equal to a fixed annual percentage as specified
in the related Prospectus  Supplement for all Mortgage Loans in such Pool of the
outstanding  principal  balance  of such  Mortgage  Loan on  which  interest  is
payable. In such event, the remainder of such interest, constituting interest at
the  mortgage  rate for such  Mortgage  Loan (the "Note Rate") less such rate of
servicing  compensation  (the  "Pass-Through  Rate" for such Mortgage  Loan), is
available for  distributions of interest at the Stated Rate and distributions of
principal to holders of the related  CitiMortgageCertificates,  CitiCertificates
and Residual Certificates,  as applicable, and to pay any REMIC Servicing Fee or
fee to the  issuer of credit  support.  Alternatively,  if so  specified  in the
related  Prospectus  Supplement,  the  Pass-Through  Rate  may be the  same  (or
calculated in the same manner) for each Mortgage Loan in the Pool,  and the rate
of  servicing  compensation  with  respect to each  Mortgage  Loan (equal to the
difference  between the Note Rate for such Mortgage  Loan and such  Pass-Through
Rate) may differ among  different  Mortgage  Loans or in the case of the CitiMae
Mortgage  Loans,  the fee may be  equal  to an  expense  rate  equal to a master
servicing  fee (the "Master  Servicing  Fee"),  a servicing  fee paid to various
third  party  servicers  (the  "Servicing  Fee")  and a fee  for  other  related
expenses.  The  Servicer  will be entitled to retain all late  payment  charges,
assumption fees and similar charges, and all income or gain on funds held in the
related  Certificate   Account  referred  to  below,  as  additional   servicing
compensation. The Servicer will pay all expenses incurred in connection with the
servicing of the Mortgage Loans,  including the fees of any  subcontractor.  See
"--Servicing and Other Compensation and Payment of Expenses" below.

     There can be no assurance that the foreclosure  and delinquency  experience
on the Mortgage Loans underlying the  CitiCertificates  or the Certificates will
be  comparable  to that  set  forth  under  "Delinquency,  Foreclosure  and Loss
Considerations  and  Experience." If the  residential  real estate market should
experience  an overall  decline in  property  values  such that the  outstanding
balances of the Mortgage  Loans and any  secondary  financing  on the  Mortgaged
Properties or interests in  cooperatives in a particular Pool become equal to or
greater than the value of the Mortgaged  Properties or interests in cooperatives
subject  to the  Mortgage  Loans  included  in such Pool,  the  actual  rates of
delinquencies,  foreclosures and losses could be significantly higher than those
now generally  experienced in the mortgage lending industry.  To the extent that
such delinquencies, foreclosures and losses are not covered by obligations under
any form of credit  support,  they will be borne by the  holders of the  related
CitiCertificates.

     Because  the  principal  amounts of Mortgage  Loans  (other than ARMs which
provide  for a portion of interest  to be  deferred  and added to the  principal
balance of such ARMs) will  decline  monthly as  principal  payments,  including
prepayments, are received, the principal balance of each CitiMortgageCertificate
in  a  series  will  decline   correspondingly.   The  Stated   Amount  of  each
CitiCertificate will decline as described under "Description of Certificates" in
the body of this Prospectus or in the related Prospectus Supplement.

  Fixed Rate Pools

     A Fixed Rate Pool may  contain  any one or more of the  following  types of
fixed interest rate Mortgage Loans:

     (i) fully amortizing Mortgage Loans providing for level monthly payments of
principal and interest;

     (ii) growing equity Mortgage Loans  providing for initial monthly  payments
based on a 10 to 30 year  amortization  schedule,  with further  provisions  for
scheduled annual payment increases at rates,  unless otherwise


                                      A-4
<PAGE>

specified in the applicable Prospectus  Supplement,  of not less than 3% or more
than 8.25% of the scheduled monthly payments during the preceding year, with the
full amount of such increases being applied to principal;

     (iii) tiered  payment  Mortgage  Loans  initially  providing  only for full
payment of interest and payment of little or no principal for up to three years,
with further provisions for annual Mortgagor payment increases, beginning in the
second year, unless otherwise specified in the applicable Prospectus Supplement,
of up to 7.5% of the monthly  Mortgagor  payments  during the preceding year and
continuing  annually until monthly  Mortgagor  payments are adequate to amortize
fully such Mortgage Loans over the remainder of the original terms;

     (iv) Mortgage Loans  amortizing over a fixed number of years but which have
a shorter term to maturity that causes the outstanding  principal balance of the
Mortgage Loan to be due and payable at the end of a certain specified period;

     (v) fully amortizing  graduated-payment Mortgage Loans ("GPMs"), other than
those  described  above,  which  provide  for lower  periodic  payments,  or for
payments  of  interest  only,  during the early  years of the term,  followed by
periodic  payments of principal  and interest that  increase  periodically  at a
predetermined  rate until the Mortgage Loan is repaid or for a specified  number
of years, after which level periodic payments begin; or

     (vi) other fixed rate Mortgage Loans having the  characteristics  set forth
in the related Prospectus Supplement.

     A Fixed Rate Pool may contain one or more Mortgage  Loans each of which was
originated as an adjustable  interest rate Mortgage Loan but has been converted,
at the  sole  option  of  the  Mortgagor,  into a  fixed  interest  rate,  fully
amortizing  Mortgage Loan  providing for level monthly  payments over a term not
exceeding its remaining term to maturity (a "Converted  Mortgage Loan").  Except
as  otherwise  provided  in this  Prospectus  and in the  applicable  Prospectus
Supplement,  a Converted  Mortgage  Loan at  origination  is subject to the same
origination and underwriting guidelines as a comparable adjustable rate mortgage
and such a Converted  Mortgage Loan is not underwritten again at the time of its
conversion. The Note Rate (and, accordingly,  the scheduled monthly payments) on
such a Converted  Mortgage  Loan may be higher or lower than the  mortgage  note
rate at the time of origination  of such Converted  Mortgage Loan. No Fixed Rate
Pool will contain Mortgage Loans which provide for negative amortization.

  ARM Pools

     ARM Pools  will  include  only  adjustable  interest  rate  Mortgage  Loans
("ARMs"),  each bearing interest at a Note Rate which adjusts  periodically to a
rate equal to the applicable  Index plus the number of basis points specified in
the Pooling Agreement or in the related mortgage note (the "Mortgage Margin" for
such  ARM),  subject to any  periodic  rate  ceiling  ("Periodic  Ceiling")  and
periodic  rate floor  ("Periodic  Floor")  and any  lifetime  maximum  note rate
("Maximum  Note Rate") or a Maximum  Note Rate and a lifetime  minimum note rate
("Minimum Note Rate"),  if applicable,  as described  below.  Each adjusted Note
Rate is generally rounded to the nearest 0.125%, subject to the applicability of
a Minimum  Note Rate and a Maximum  Note  Rate.  A Periodic  Ceiling  limits the
amount of any single  periodic  increase  in the Note Rate and a Periodic  Floor
limits the amount of any single  periodic  decrease in the Note Rate.  A Maximum
Note Rate  limits the amount of  increases  in the Note Rate over the life of an
ARM and a Minimum Note Rate limits the amount of decreases in the Note Rate over
the life of an ARM.  Except with respect to ARMs with Minimum Note Rates,  there
is no minimum  Note Rate to which the Note Rate in an ARM may  adjust.  The Note
Rates of the ARMs in a given ARM Pool will adjust as described in the applicable
Prospectus Supplement and an ARM Pool may contain ARMs with different adjustment
dates.  Certain ARMs may provide for periodic  adjustments of scheduled  monthly
payments in order to amortize  fully the  Mortgage  Loan by its stated  maturity
while  other ARMs may permit  that  maturity  to be  extended  or  shortened  in
accordance  with the  portion of each  payment  that is applied to  interest  in
accordance with the periodic Note Rate adjustments.

     Where an ARM  provides  for  limitations  on the  amount  by which  monthly
payments  may be  increased or changes to the Note Rate of the ARM are made more
frequently  than payment  changes,  it is possible  that an increase in the Note
Rate will not be covered by the amount of the scheduled monthly payment. In that
case,  the  uncollected  portion of interest  will be deferred  and added to the
principal balance of the ARM.

     The amount of the difference  between the scheduled monthly payment and the
monthly  interest  accrued at the Mortgage Rate is added to the unpaid principal
balance of the Mortgage Loan and interest accrues on such added principal at the
then-applicable Mortgage Rate from the date of such addition. Such an adjustment
is  referred  to as  "negative  amortization".  Negative  amortization  tends to
lengthen the weighted  average life of the Mortgage Loans


                                      A-5
<PAGE>

and may cause  payments near the maturity of the Mortgage Loan to be larger than
the previously  scheduled monthly payments unless the terms of the Mortgage Loan
permit its  maturity to be  extended.  If a Pool  includes  Mortgage  Loans that
provide for negative amortization,  the related Supplement will describe certain
of the effects on holders of  Certificates  as of the  preceding  Record Date of
such Series.

     Prior to the first  adjustment  of the Note Rate on an ARM,  the  scheduled
monthly  payment by the  Mortgagor is the amount  which will fully  amortize the
principal  balance of the ARM in equal  installments over its remaining term and
pay  interest at the initial  Note Rate.  In the case of ARMs which  provide for
periodic  adjustments  of scheduled  monthly  payments,  on the first day of the
month  following  the  month in which a Note  Rate  adjusts,  the  Mortgagor  is
required to begin making scheduled  monthly payments in amounts which will fully
amortize  the  principal  balance  of the ARM in  equal  installments  over  its
remaining  term and pay interest at the adjusted Note Rate except in the case of
certain ARMs which provide for a deferral of a portion of interest, as described
in the preceding  paragraph.  The Mortgagor under an ARM may have been qualified
at  an  interest  rate  which  is  lower  than  the  current  interest  rate  at
origination.  Accordingly, the repayment of such ARM is dependent on the ability
of the  Mortgagor to make larger  monthly  payments  after the initial Note Rate
adjustment date.

     The applicable  Prospectus  Supplement will contain information  respecting
the index (the "Index")  utilized to adjust the Note Rates of ARMs, the Mortgage
Margin,  the  frequency of interest rate and payment  adjustments,  the Periodic
Ceiling,  the Periodic  Floor,  the Maximum Note Rate, the Minimum Note Rate, if
applicable, and provisions for deferred interest, if any. The ARMs included in a
particular  ARM Pool will be more  fully  described  in the  related  Prospectus
Supplement.

YIELD CONSIDERATIONS

     A  description  of yield  considerations  with  respect  to any  Series  of
CitiCertificates,  to the extent such considerations differ from those described
below, will be set forth in the related Prospectus Supplement.

     The yield on any CitiCertificate or CitiMortgageCertificate  will depend on
the  price  paid,  the  effective  interest  rate  of  the   CitiCertificate  or
CitiMortgageCertificate  and  the  prepayment  experience  with  respect  to the
Mortgage Loans underlying the related Series.

  Price

     Subject to the effect of the amount of interest  payable in connection with
prepayments as described  below,  prepayments of principal on the Mortgage Loans
in  a  Pool  will   increase   the  yield  on  a  related   CitiCertificate   or
CitiMortgageCertificate  purchased at a price less than the  aggregate  Adjusted
Balance of the Mortgage Loans in a Pool represented by such  CitiCertificate  or
CitiMortgageCertificate and will decrease the yield on a related CitiCertificate
or  CitiMortgageCertificate  purchased  at a price  greater  than the  aggregate
Adjusted Balance of the Mortgage Loans  represented by such  CitiCertificate  or
CitiMortgageCertificate.

  Effective Interest Rate

     Interest on each Mortgage Loan is payable in arrears. Each monthly interest
payment on a Mortgage  Loan is calculated  as 1/12 of the  applicable  Note Rate
multiplied by the unpaid principal  balance of such Mortgage Loan outstanding as
of the first day of the month. The amount of such payments  distributed  monthly
with respect to each Mortgage Loan will be similarly  calculated on the basis of
the  Pass-Through  Rate for such Mortgage Loan. The difference  between the Note
Rate and the  Pass-Through  Rate for a  Mortgage  Loan will be  retained  by the
servicer as servicing compensation.  See "--Servicing and Other Compensation and
Payment  of  Expenses"  below.  If  so  indicated  in  the  related   Prospectus
Supplement,  a  portion  of the Note  Rate  may be  retained  by the  applicable
Originator or the Subservicer.

     The yield on a CitiCertificate or CitiMortgageCertificate  will be slightly
lower than the yield  otherwise  produced by the  applicable  fixed  Stated Rate
because,  while interest will accrue on each Mortgage Loan from the first day of
each month,  the  distribution  of such interest at the applicable  fixed Stated
Rate  will not be made  until  the  applicable  Distribution  Date in the  month
following the end of the related period during which interest has accrued.  Full
or partial prepayments  received and posted during any calendar month are passed
through  to  holders  of  CitiCertificates  or  CitiMortgageCertificates  on the
applicable  Distribution Date immediately  following such calendar month. In the
case of the  Affiliated  Mortgage  Loans,  interest  on  such a full or  partial
prepayment  will be paid 


                                      A-6
<PAGE>

at the Stated Rate for such entire  calendar  month  (regardless  of when during
such month such prepayment is received) to the extent of Servicing  Compensation
(exclusive of any amount  designated as "additional  servicing  compensation" in
the related  Prospectus  Supplement,  and subject to any limit  described in the
related  Prospectus  Supplement)  for such  calendar  month.  In the case of the
CitiMae  Mortgage  Loans,  such an  interest  will be paid to the  extent of the
Master Servicing Fee.  Therefore,  to the extent such Servicing  Compensation or
the Master  Servicing  Fee, as  applicable,  equals or exceeds any  shortfall in
collections  of  interest on account of full or partial  prepayments,  principal
prepayments  will  not  affect  the  yield to  holders  of  CitiCertificates  or
CitiMortgageCertificates, except as provided in the preceding sentence and under
the heading  "Price"  above.  Payment of interest on  prepayments on Third Party
Loans will be made as described in the related Prospectus Supplement.

     To  the  extent  the  loan  servicing  and  collection   practices  of  any
subcontractor  or the timing and accruals of interest on  principal  prepayments
vary  from  those  disclosed  in  this  paragraph,   the  applicable  Prospectus
Supplement will describe such differences.

  Other Yield Considerations

     The Note Rates on ARMs adjust  periodically in response to movements in the
Index.  In connection  with ARM Pools which provide for periodic  adjustments to
scheduled   monthly   payments,   the   first   distribution   on  the   related
CitiCertificates or CitiMortgageCertificates reflecting a periodic adjustment to
scheduled  monthly  payments on the  underlying  ARMs will be passed  through to
holders on the  Distribution  Date in the month following the month in which the
Note Rate on an ARM is adjusted.  Furthermore, unless otherwise described in the
related  Prospectus  Supplement,  adjustments in the Note Rates are based on the
relevant Index most recently  available as of the date 45 days prior to the date
of the Note Rate adjustment. Accordingly, the yield to certificateholders of ARM
pools will be adjusted on a delayed  basis  relative to  movements in the Index.
Furthermore,  adjustments to the Note Rate on an ARM may be limited by a Minimum
Note Rate, Maximum Note Rate, Periodic Floor and Periodic Ceiling. The following
table   illustrates   the   timing   of   the   adjustments   and   receipt   by
Certificateholders   of  related  distributions  for  a  hypothetical  ARM  Pool
containing ARMs having an adjustment date of July 1. All dates are assumed to be
business days.

May 1 ...........   Index is published.

July 1 ..........   Note Rates are adjusted based on the May 15 Index.

August 1 ........   Mortgagors make the first adjusted  monthly  payments at the
                    adjusted Note Rates.

August 18 .......   Determination Date.

August 25 .......   First payment to  Certificateholders  including  interest at
                    the adjusted  Pass-Through  Rate which payment  reflects the
                    adjusted scheduled monthly payments on the underlying ARMs.

                                      A-7
<PAGE>

PREPAYMENT EXPERIENCE

     The  Mortgage  Loans may be  prepaid  in full or in part at any  time.  The
prepayment  experience  of the Mortgage  Loans will affect the weighted  average
life of a series of CitiCertificates or  CitiMortgageCertificates.  Based on the
Originators' experience with their own conventional fixed interest rate mortgage
loan  portfolios  and public  information  with respect to the mortgage  lending
industry,  the Issuer  anticipates  that a significant  number of Mortgage Loans
will be paid in full prior to their scheduled  maturities.  A number of factors,
including homeowner mobility, economic conditions, enforceability of due-on-sale
clauses, any prepayment penalty contained in the Mortgage Loans, mortgage market
interest  rates  and  the   availability  of  mortgage   funds,   may  influence
prepayments. In general, due-on-sale clauses for Mortgage Loans will be enforced
in a manner consistent with applicable law whenever such due-on-sale clauses are
contained in the mortgage  documents and such enforcement  would not violate the
contractual  arrangements  with the Mortgagors.  See "--Certain Legal Aspects of
the Mortgage Loans  --Enforceability of Certain  Provisions,  Prepayment Charges
and Prepayments" below.

     Unless  the  Prospectus  Supplement  indicates  otherwise,  Mortgage  Loans
representing  at least 90% of the  aggregate  Adjusted  Balance of the  Mortgage
Loans in a Fixed Rate Pool will  contain a  due-on-sale  clause  permitting  the
mortgagee to accelerate the maturity of the Mortgage Loan upon conveyance by the
Mortgagor of the Mortgaged Property. Generally, ARMs in an ARM Pool will contain
a due-on-sale  clause  permitting the mortgagee to accelerate only in situations
where its security may be impaired.

     Servicing  institutions  for loan pools are  sometimes  asked to  refinance
existing loans by accepting prepayments of loans and making new loans secured by
the same property or assigning  existing  loans to new lenders,  or by otherwise
modifying  the terms of existing  mortgage  loans.  A  mortgagor  may be legally
entitled to require a lender to grant such an  assignment of a real estate loan.
See "--Certain  Legal Aspects of the Mortgage  Loans--Enforceability  of Certain
Provisions,  Prepayment Charges and Prepayments"  below. The Issuer reserves the
right to offer  incentives  such as  favorable  loan  terms or  reduced  fees to
encourage  borrowers  to  refinance  existing  Mortgage  Loans.  The Issuer also
reserves  the  right to offer  to  mortgagors,  at the  request  of  mortgagors,
modifications  of the terms of  existing  Mortgage  Loans as an  alternative  to
refinancing,  consistent with the REMIC  provisions of the Code and the terms of
the applicable  Pooling Agreement.  Upon any such modification,  the Issuer will
repurchase  such Mortgage Loan from the Pool.  The Issuer  reserves the right to
accept  prepayments  of Mortgage  Loans in any Pool and to make new loans to the
same  borrowers  or to  refinance  Real Estate  Loans in any Pool  pursuant to a
Consolidation  Agreement.  Upon any such  refinancing  or  modification,  either
pursuant to a Consolidation Agreement or a Modification Agreement or through the
extension of a new loan to the borrower,  the  refinanced  or modified  Mortgage
Loan will be treated as fully  prepaid and removed from the Pool.  The principal
balance of any such refinanced or modified  Mortgage Loan together with interest
accrued thereon at the applicable  Pass-Through Rate through the last day of the
month in which such refinancing or modification  occurred will be distributed to
CitiCertificateholders  or holders of the  CitiMortgageCertificate,  as the case
may be, in the month following the refinancing or modification.

     The Servicer  permits  Mortgagors  to  participate  in certain  "prepayment
programs" with unaffiliated service agencies. Under those programs,  generally a
Mortgagor makes 26 bi-weekly payments during a calendar year, each payment being
in the amount of one-half of the  Mortgagor's  scheduled  monthly  principal and
interest  payment,  resulting in 13 monthly payments being made per year. Twelve
of these monthly  payments are applied as such on each  applicable Due Date. All
of the  thirteenth  payment is  applied as a  curtailment  in  reduction  of the
outstanding  principal balance of the Mortgage Loan, thus effecting a more rapid
repayment of the Mortgage  Loan and  reducing  the  aggregate  amount of accrued
interest payable on such Mortgage Loan.

     See also "The Pooling Agreements--Termination; Repurchase of Mortgage Loans
and Mortgage  Certificates"  in the body of this Prospectus for a description of
the option to repurchase the Mortgage Loans or Mortgage Certificates in any Pool
when the  aggregate  principal  balance  thereof  is less  than  the  percentage
(generally  5%)  specified  in  the  applicable  Prospectus  Supplement  of  the
aggregate  Adjusted  Balance  thereof  as of the  Cut-Off  Date for the  related
Series.

ASSIGNMENT OF MORTGAGE LOANS

     At the time of issuance of each Series of  Certificates,  the  affiliate of
the Issuer  originating or acquiring the Mortgage Loans in a Pool,  other than a
Pool which  consists  wholly of Issuer  Certificates,  will assign the  Mortgage
Loans to the Trustee,  together with all  principal and interest  received on or
with respect to such Mortgage Loans (if 


                                      A-8
<PAGE>

specified in the  applicable  Prospectus  Supplement,  a portion of the interest
received on a Mortgage Loan may be retained by an  Originator or a  Subservicer)
after the first day of the month of issuance of such  Certificates (the "Cut-Off
Date")  other  than  principal  and  interest  due and  payable on or before the
Cut-Off Date.  Mortgage Loans underlying  Issuer  Certificates will have been so
assigned  to the  Underlying  Trustee  at the time of  issuance  of such  Issuer
Certificates.  The Trustee or its agent will, concurrently with such assignment,
authenticate and deliver the Certificates  evidencing such Series. Each Mortgage
Loan will be  identified  in a schedule  appearing  as an exhibit to the Pooling
Agreement.  Such schedule will include information as to the Adjusted Balance of
each  Mortgage  Loan as of the close of business on the Cut-Off Date, as well as
information  with respect to the Note Rate,  the  scheduled  monthly  payment of
principal  and  interest,  the maturity  date or term and, if such Pool contains
Cooperative Loans, the number of Mortgage Loans which are Cooperative Loans. (PA
Section 2.01)

     In  addition,  the Issuer or the  affiliate  of the Issuer  originating  or
acquiring  the Real  Estate  Loans in a Pool,  other than a Pool which  consists
wholly of Issuer  Certificates,  will, as to each Real Estate Loan in such Pool,
deliver  to the  Trustee  (or to the  custodian  hereinafter  referred  to)  the
Mortgage  Note  endorsed  either  manually  or  by  facsimile   signature,   any
assumption,   modification,   buydown  or  conversion  to  fixed  interest  rate
agreement,  any certificate of primary mortgage insurance, a mortgage assignment
in recordable form (except as provided below) and the original recorded Mortgage
or, in the case of Cooperative Loans, the related Cooperative Note, the original
security  agreement,   the  proprietary  lease  or  occupancy   agreement,   the
recognition   agreement,   an  executed  financing  statement  (if  required  at
origination under applicable law) and the relevant stock certificate and related
blank stock powers;  provided that, in instances where recorded documents cannot
be delivered due to delays in connection  with  recording,  the  originator  may
deliver copies thereof and deliver the original recorded documents promptly upon
receipt. In addition,  in lieu of delivering a mortgage assignment in recordable
form, the originator may instead deliver a blanket  assignment which will not be
in recordable form, together with a power of attorney appointing the Trustee its
attorney-in-fact  to act for and on  behalf  of such  originator  in  preparing,
executing,  delivering  and  recording  in the name of the  Trustee  any and all
instruments of assignment with respect to the Mortgages.  Real Estate Loans that
underlie  Issuer  Certificates  will have been so  delivered  to the  Underlying
Trustee at the time of issuance of such Issuer Certificates.

     The Originators  expect to record or file assignments of the Mortgage Loans
to  the  Trustee  subsequent  to the  issuance  of  CitiMortgageCertificates  or
CitiCertificates, as the case may be, except in states where, as evidenced by an
opinion of counsel,  such  recording  is not  required to protect the  Trustee's
interest in the Mortgage  Loan.  Such  recordation or filing is not necessary to
make the  assignment  of the  Mortgage  Loans to the related  Trustee  effective
between  such  Trustee and the  applicable  Originator.  However,  if any of the
Originators  were to make a sale,  assignment,  satisfaction or discharge of any
Mortgage Loans prior to recording or filing the assignment to such Trustee,  the
other parties to such sales, assignments, satisfactions or discharges might have
rights superior to those of such Trustee.  If any of the Originators  were to do
so without authority under the Pooling Agreement, it would be liable to the Pool
or the  holders of the  related  CitiCertificates  or  CitiMortgageCertificates.
Moreover,  if  insolvency  or  receivership  proceedings,  as the  case  may be,
relating to any of the  Originators  were  commenced  prior to such recording or
filing,  creditors  of  such  Originator  may be able to  assert  rights  in the
affected Mortgage Loans superior to those of such Trustee.

     The  Trustee  will  review the  above-mentioned  documents  (including  any
Mortgage  Certificates)  within 90 days of the  delivery of such  documents  and
shall promptly notify the Issuer if any document is not delivered or is found to
be defective in any material respect. If the Issuer cannot deliver such document
or cure such defect within 180 days (90 days if the defect affects the status of
the Mortgage  Loan as a "qualified  mortgage" for REMIC  purposes)  after notice
thereof,  the Issuer will  repurchase  the related  Mortgage  Loan (or  Mortgage
Certificate) from the Trustee within 180 days (90 days if the defect affects the
status of the Mortgage Loan as a "qualified  mortgage" for REMIC purposes) after
such notice at a price equal to the  principal  balance  owed by the  Mortgagor,
plus accrued and unpaid interest thereon at the applicable  Pass-Through Rate to
the  first  day of the  month  following  the  month  of  repurchase,  less  any
unreimbursed  payments  under any related  Guaranty or other credit  support and
unreimbursed  Voluntary Advances (as described below).  Such repurchase will not
diminish the amount available under any related Guaranty or other credit support
and is deemed to be a reimbursement.  Except as provided in the last sentence of
this paragraph, this repurchase obligation constitutes the sole remedy available
to the  CitiCertificateholders  or the Trustee against the Issuer for a material
defect in a document  relating to a Mortgage  Loan. The Issuer will have certain
rights to substitute  Mortgage  Loans or Mortgage  Certificates  in respect of a
Pool.  See  "The  Pools--Substitution  of  Mortgage  Loans"  in the body of this
Prospectus.  In respect of a Pool,  the related  Originator  will be required to
cure any defect in a 


                                      A-9
<PAGE>

document  relating to, or  repurchase,  any Mortgage Loan which it originated or
acquired and which is found defective or repurchased by the Issuer.

     In the  Pooling  Agreement  the Issuer  will  represent  and warrant to the
related Trustee,  among other things,  that (i) the information set forth in the
schedule of Mortgage Loans attached thereto is correct in all material respects,
(ii) a lender's  title and  insurance  policy or binder  (or other  satisfactory
evidence  of  title)  for  each  Real  Estate  Loan  was  issued  on the date of
origination  thereof and each such policy or binder is valid and remains in full
force and effect, (iii) at the date of initial issuance of the CitiCertificates,
it has good title to the Mortgage  Loans or the Mortgage  Certificates  and such
Mortgage  Loans or  Mortgage  Certificates  are  free of  offsets,  defenses  or
counterclaims and, in the case of Mortgage Certificates, free of liens, security
interests and other  encumbrances,  (iv) at the date of initial  issuance of the
CitiCertificates,  each  Mortgage  subject to such Pooling  Agreement is a valid
first lien on the property  securing the related  Mortgage Note (subject only to
(a) the lien of current real  property  taxes and  assessments,  (b)  covenants,
conditions  and  restrictions,  rights of way,  easements  and other  matters of
public record as of the date of the recording of such Mortgage,  such exceptions
appearing of record being acceptable to mortgage lending institutions  generally
or  specifically  reflected in the related  appraisal  and (c) other  matters to
which like  properties are commonly  subject which do not  materially  interfere
with the benefits of the security  intended to be provided by the  Mortgage) and
such property is free of material damage and is in good repair,  (v) if the Pool
includes  Cooperative  Loans,  at  the  date  of  the  initial  issuance  of the
CitiCertificates,  each security  interest  created by the cooperative  security
agreement  is a valid  first  lien  (subject  only to the  right of the  related
cooperative to cancel the shares and terminate the proprietary  lease for unpaid
assessments  representing  the Mortgagor's  pro rata share of the  cooperative's
payments  for its blanket  mortgage,  current and future  real  property  taxes,
maintenance  charges  and other  capital  and  ordinary  expenses  to which like
collateral is commonly  subject and for unpaid special  assessments  owed by the
Mortgagor to the cooperative) on the collateral securing the related Cooperative
Note,  and the dwelling  unit to which the  Cooperative  Loan relates is free of
material damage and is in good repair (it being recognized by the parties to the
Pooling  Agreement  that,  while the  Issuer  warrants  that each such  security
interest  is  a  valid  first  lien  on  the  collateral  securing  the  related
Cooperative Note, subject to the exceptions noted, the related proprietary lease
and occupancy  agreement may be subordinated or otherwise subject to the lien of
any  mortgage  on the  related  cooperative  building),  (vi) at the  applicable
Cut-Off Date,  no subject  Mortgage Loan is 30 days or more past due or has been
30 days or more  past due more  than  once in the  12-month  period  immediately
preceding the Cut-Off Date and there are no delinquent  tax or assessment  liens
against  the  property  covered by the  related  Mortgage,  (vii) at the date of
initial issuance of the CitiCertificates,  the portion of each Mortgage Loan, if
any,  which in the  circumstances  set forth  under  "General"  above and in the
applicable Prospectus Supplement should be insured by a private mortgage insurer
is so insured and (viii) each  Mortgage Loan at the time it was made complied in
all material respects with applicable state and federal laws, including, without
limitation,  usury,  equal credit  opportunity and disclosure laws. In addition,
the Issuer will warrant in respect of a Mortgage  Loan in a Pool that (a) at the
date of the initial  issuance of the  CitiCertificates,  there is no  mechanics'
lien or claim for work, labor or material affecting the premises which is or may
be prior to or equal with the lien of such Mortgage (except those insured by the
related  title  insurance  policy),  (b) the original  principal  amount of each
Mortgage Loan was not more than 95% of the Original  Value of such Mortgage Loan
and (c) the  Mortgage  Loans and Mortgage  Certificates  conform in all material
respects with the  descriptions  thereof in this  Prospectus  and the Prospectus
Supplement.  Within 180 days of the  discovery  by the Issuer of a breach of any
representation  or warranty which materially and adversely affects the interests
of the CitiCertificateholders, or its receipt of notice thereof from the Trustee
(or  within 90 days of  discovery  by the  Issuer of a failure to conform to the
representations  and warranties in the Pooling Agreement that affects the status
of a Mortgage  Loan as a "qualified  mortgage" for REMIC  purposes),  the Issuer
will cure the breach or repurchase  the Mortgage Loan (or Mortgage  Certificate)
or substitute a Mortgage Loan or Mortgage  Certificate on the terms set forth in
the preceding paragraph.  Such repurchase will not diminish the amount available
under any related  Guaranty or other form of credit  support.  In addition,  the
Issuer will  indemnify  the Pool for any losses to such Pool not  reimbursed  by
such repurchase. Such repurchase obligation and limited indemnity constitute the
sole  remedies  available to the  CitiCertificateholders  or the Trustee for any
such  breach.  (PA Section  2.03) If  Standard & Poor's  Ratings  Group  ("S&P")
initially assigns a rating to the CitiCertificates,  then at any time that S&P's
rating of Citicorp's  long-term senior debt is below the rating S&P has assigned
to the highest rated  outstanding  Class (or Subclass) of a particular Series of
CitiCertificates,  each  related  Trustee  will be  required  either to maintain
possession of the related  Mortgage Notes or to appoint a custodian (which could
be itself),  which may not be an affiliate of the Issuer, to maintain possession
of the related Mortgage Notes.


                                      A-10
<PAGE>

     The Trustee  will  maintain  possession  of the  documents  relating to the
Mortgage Loans;  provided,  however, the Trustee will be authorized to appoint a
custodian or custodians,  which may be an affiliate of the Issuer, except in the
circumstances  described in the preceding  paragraph,  to maintain possession of
the documents relating to the Mortgage Loans. Such custodian may maintain all or
part of the documents  relating to the Mortgage  Loans.  Any custodian will keep
such documents as the Trustee's agent under a custodial agreement.

PAYMENTS ON MORTGAGE LOANS IN POOLS

     The Pooling  Agreements  will  provide that the Issuer will  establish  and
maintain with one or more  depository  banks,  savings and loan  associations or
trust  companies,  any of which  may be an  affiliate  of the  Issuer  (each,  a
"Depository"),  one or more accounts (the "Certificate  Account") in the name of
the Trustee for the benefit of  CitiCertificateholders.  Amounts with respect to
any Series may, at the option of the Issuer, be held in the same deposit account
as amounts with respect to any other  Series,  provided  that the rating by each
nationally recognized statistical rating organization of each such Series is the
same. For payments made on the Affiliated Mortgage Loans, the initial Depository
will be Citibank (New York State),  unless otherwise specified in the applicable
Prospectus  Supplement.  For the  Certificate  Account related to the Affiliated
Mortgage Loans, upon two weeks' prior written notice to the Trustee, CMSI may at
any time and from time to time in its discretion  transfer or direct the Trustee
in writing to  transfer  the  Certificate  Account  relating  to the  Affiliated
Mortgage Loans to any Depository  which meets any of the  requirements as stated
below. In the event that the long-term debt obligations of any Depository of the
Certificate  Account relating to the Affiliated Mortgage Loans shall be rated at
less than A2 by Moody's Investors Service, Inc.  ("Moody's"),  or the short-term
debt obligations of such depository shall be rated by S&P at less than A-1 or by
Moody's at less than P-1, then within five Business Days of such reduction, CMSI
shall (A) transfer or direct the Trustee in writing to transfer the  Certificate
Account relating to the Affiliated  Mortgage Loans to a Depository the long-term
debt  obligations  of which  are not  rated by  Moody's  at less than A2 and the
short-term  debt  obligations of which are not rated at less than A-1 by S&P and
P-1 by Moody's (the "Rating Requirements"), (B) establish another account in the
corporate  trust  department  of the Trustee or, if such Trustee has a long-term
and  short-term  debt rating at least equal to the Rating  Requirements,  in any
department of the Trustee (the "Alternative Certificate Account") and direct the
Servicer  to remit on a daily  basis any funds  deposited  into the  Certificate
Account relating to the Affiliated Mortgage Loans to the Alternative Certificate
Account,  (C) (i) cause  such  Depository  to pledge  securities  in the  manner
provided by  applicable  law or (ii)  pledge or cause to be pledged  securities,
which  shall be held by the  Trustee  or its agent free and clear of the lien of
any third party,  in a manner  conferring on the Trustee a perfected  first lien
and otherwise reasonably satisfactory to the Trustee; such pledge in either case
to secure such  Depository's  performance  of its  obligations in respect of the
Certificate  Account relating to the Affiliated Mortgage Loans to the extent, if
any, that such obligation is not fully insured by the FDIC;  provided,  however,
that prior to the day the  Depository or CMSI,  as the case may be,  pledges the
securities,  CMSI and the Trustee shall have  received the written  assurance of
each rating  agency  which  assigned a rating to the  CitiCertificates  that the
pledging of such securities and any arrangements or agreements  relating thereto
will not result in a reduction or withdrawal of the  then-current  rating of the
CitiCertificates,  (D)  establish  an  account  or  accounts  or  enter  into an
agreement so that the existing  Certificate  Account  relating to the Affiliated
Mortgage  Loans is  supported by a letter of credit or some other form of credit
support,  which issuer of such letter of credit or other form of credit  support
has a  long-term  and  short-term  debt  rating  at least  equal  to the  Rating
Requirements;  provided,  however,  that prior to the  establishment  of such an
account or the entering  into of such an  agreement,  CMSI and the Trustee shall
have received written  assurance from each rating agency which assigned a rating
to the  CitiCertificates  that  the  establishment  of  such an  account  or the
entering  into of such an  agreement so that the  existing  Certificate  Account
relating to the Affiliated  Mortgage Loans is supported by a letter of credit or
some other form of credit  support will not result in a reduction or  withdrawal
of the  then-current  rating  on the  CitiCertificates  or (E) make  such  other
arrangements  as to which  CMSI and the  Trustee  have  received  prior  written
assurance   from  each   rating   agency   which   assigned   a  rating  to  the
CitiCertificates  that  such  arrangement  will not  result  in a  reduction  or
withdrawal of the then-current rating on the CitiCertificates. In the event that
the rating on the  CitiCertificates  has been downgraded as a result of a rating
downgrade of the Depository,  for purposes of this paragraph,  the  then-current
rating  on  the   CitiCertificates   shall  be  the  rating   assigned   to  the
CitiCertificates immediately prior to any such downgrade.

     For the Certificate  Account relating to the CitiMae Mortgage Loans and the
Third Party Loans,  CMSI will  establish and maintain  accounts which are either
(i) maintained with a depositary institution the obligations of which (or in the
case of a depository  institution that is the principal  subsidiary of a holding
company,  the  obligations of such


                                      A-11
<PAGE>

holding  company) are rated in one of the two highest rating  categories by each
rating  agency  that  rated  one or  more  classes  of  the  related  Series  of
Certificates,  (ii) an  account  or  accounts  the  deposits  in which are fully
insured by the FDIC,  (iii) an account or  accounts  the  deposits  in which are
insured  by the FDIC to the  limits  established  by the FDIC 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 such
account or accounts, 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 such
account or accounts  are  maintained  or (iv) an account or  accounts  otherwise
acceptable to each such rating agency. The collateral eligible to secure amounts
in the  Certificate  Account is limited to Eligible  Investments  consisting  of
United States government securities and other high-quality investments.

     Payments,  or proceeds of  payments,  of the types  listed  below are to be
deposited in the related  Certificate Account for the related Series (other than
payments in respect of principal and interest on the related  Mortgage Loans due
on or before the applicable Cut-Off Date):

          (i) all scheduled  payments of principal  ("Scheduled  Principal") and
     Principal  Prepayments  (defined to mean any  payment or other  recovery of
     principal on a Mortgage  Loan which is received in advance of its scheduled
     due date and is not  accompanied  by any interest  scheduled for payment in
     any month subsequent to the month of prepayment) on such Mortgage Loans;

          (ii) all payments on account of interest (including payments made from
     a buydown subsidy account  established with respect to such Mortgage Loans)
     on such  Mortgage  Loans,  adjusted  to the  Pass-Through  Rates  for  such
     Mortgage Loans;

          (iii) all payments under any credit support  (unless such payments are
     made  directly  to a  different  account  to be used for  distributions  to
     CitiCertificateholders by the paying agent for the CitiCertificates);

          (iv)  all  voluntary  advances  made as  described  below  ("Voluntary
     Advances") or other payments made by the Servicer in respect of Liquidating
     Loans;

          (v) all amounts received,  by foreclosure or otherwise,  in connection
     with the  liquidation  of  defaulted  Mortgage  Loans  which  have not been
     assigned to the issuer of credit support in consideration of payments under
     any such credit support,  net of expenses  incurred in connection with such
     liquidation;

          (vi) all proceeds received under any title,  hazard or other insurance
     policy  covering any Mortgage Loan  (including any  deductible  paid by the
     Issuer in lieu thereof as permitted by the Pooling  Agreement),  other than
     proceeds  to be  applied  to the  restoration  or  repair  of  the  related
     property,  or released to the Mortgagor in accordance with normal servicing
     procedures;

          (vii) all proceeds of any  repurchase by the Issuer of Mortgage  Loans
     as described  under  "Assignment  of Mortgage  Loans" or under "The Pooling
     Agreements--Termination;   Repurchase   of  Mortgage   Loans  and  Mortgage
     Certificates" in the body of this Prospectus (PA Section 3.10); and

          (viii)  in  connection  with  any  Principal  Prepayment,  the  amount
     required  to be  deposited  by  the  Issuer  as a  reduction  of  servicing
     compensation  pursuant  to the  Pooling  Agreement,  being  the  difference
     between 30 days of interest at the Pass-Through  Rate on the amount of such
     Principal   Prepayment  and  the  amount  of  interest   (adjusted  to  the
     Pass-Through  Rate)  actually  due  thereon  for the  month in  which  such
     Principal Prepayment was posted.

     Voluntary  Advances,  payments by the  servicer  in respect of  Liquidating
Loans and payments  under any related  Guaranty or other form of credit  support
will be  deposited  in the  Certificate  Account not later than on the  relevant
Distribution  Date.  All other  amounts  will be  deposited  in the  Certificate
Account  by the  second  business  day next  following  the day of  receipt  and
posting.

     Distributions on  CitiCertificates  will be made as provided in the body of
this  Prospectus  and  in  the  Prospectus   Supplement.   See  "Description  of
Certificates."  In  addition,  the Trustee (or such other paying agent as may be
specified in the applicable  Prospectus  Supplement)  will, to the extent of the
obligations under credit support,  include with any distributions to holders (i)
an amount sufficient to cover  delinquencies in scheduled  payments of principal
and interest,  first from a Certificate Account Advance, second from a Voluntary
Advance and third, if necessary, from payments under the credit support, (ii) if
so specified in the related Prospectus Supplement, an amount sufficient to

                                      A-12
<PAGE>


repurchase  Liquidating  Loans (either as a result of a demand or draw under the
credit  support or as a result of a payment by the  Servicer)  and (iii) certain
amounts  in  respect  of  Principal  Prepayments  to the  extent not paid by the
Issuer, all as described in the Prospectus Supplement. (PA Section 3.03)

     Provision is made for Voluntary Advances,  Certificate Account Advances and
other payments in respect of Liquidating Loans on behalf of the issuer of credit
support  in  order  to avoid  drawings  on the  credit  support  for  relatively
insignificant  amounts.  In the event the amount of  delinquencies on Affiliated
Mortgage Loans, CitiMae Mortgage Loans or Third Party Loans cannot be covered by
an advance out of cash in the  Certificate  Account  collected in relation to an
Affiliated   Mortgage  Loan,   CitiMae  Mortgage  Loan  or  Third  Party  Loans,
respectively,  being held for future  distribution or withdrawal (a "Certificate
Account  Advance")  the Issuer may,  but is not  obligated  to,  make  Voluntary
Advances to the extent that payments  under credit  support  would  otherwise be
required. The Issuer intends to make Voluntary Advances to the extent that, were
it not to do so, the issuer of the credit  support  would be liable for payments
under such credit support.  Any such advances will be reimbursable to the extent
and in the manner  payments  under credit  support would be  reimbursed,  all as
described in the Prospectus Supplement.

     Not later than three  business  days before  each  Distribution  Date,  the
Issuer will furnish or cause to be furnished a separate statement to the Trustee
(and  to any  paying  agent)  (the  information  in  such  statement  to be made
available to the Trustee at other times by the Issuer on request) setting forth,
among other things,  the aggregate amount to be distributed on such Distribution
Date on account of principal and  interest,  stated  separately,  the sources of
such amount and  information  relating to the amount  available under the credit
support. (PA Section 3.19)

     The  following  chart  sets  forth an  example  of the  application  of the
foregoing  provisions  to a  hypothetical  CitiCertificate  which  represents an
interest in a Pool consisting primarily of Mortgage Loans which is issued during
January.  The example  would be applicable  to any such  CitiCertificate  issued
during any other month or any  CitiMortgageCertificate.  (All dates  referred to
are assumed to be business days).

January 1 ............   Cut-Off Date. The initial principal balance of the Pool
                         would be the aggregate Adjusted Balance of the Mortgage
                         Loans on January 1 after deducting  principal  payments
                         due on or before such date.  Principal  payments due on
                         January 1 and the accompanying interest payments, which
                         represent interest on December 1 balances, are not part
                         of the Pool and will be retained by the Servicer.

January 1-January 31 .   Payment  Period.  Principal  Prepayments  posted during
                         this  period  will,  together  with  interest,  if any,
                         collected thereon (adjusted to the Pass-Through  Rate),
                         be  deposited  in the  Certificate  Account and will be
                         passed  through to  CitiCertificateholders  on February
                         25.  The  Servicer  collects  interest  on the  prepaid
                         amount  to the  date of  prepayment  and,  for  partial
                         prepayments, collects no interest on the prepaid amount
                         for the month of prepayment except, that in the case of
                         certain CitiMae  Mortgage Loans a full month's interest
                         will be collected. Scheduled payments due on February 1
                         from  Mortgagors  will be deposited in the  Certificate
                         Account as  received.  Such  payments  will include the
                         scheduled principal payments received, plus interest on
                         such  Mortgage  Loans   calculated  on  the  January  1
                         principal  balances  thereof (after deducting from such
                         balances all partial  prepayments of principal  applied
                         as of January 1).

January 31 ...........   Record Date.  Distributions on February 25 will be made
                         to  CitiCertificateholders  of  record  at the close of
                         business  on  the  last   business  day  of  the  month
                         immediately preceding the month of distribution.

February 18 ..........   Determination  Date. On the 18th day of the month,  the
                         Servicer determines the aggregate amount of funds which
                         are available to make  distributions on February 25, as
                         described herein,  determining separately the aggregate
                         amount  available  in the  Certificate  Account and the
                         amount  available as Voluntary  Advances or as payments
                         under credit support to make such distributions.

                                      A-13
<PAGE>

February 22 ..........   Notice  Date.  By this  date,  if CMI is not the paying
                         agent for such CitiCertificates,  notice of the amounts
                         to be  distributed  on  February  25 is  given  to  the
                         Trustee (and, if a person other than the Trustee is the
                         paying agent,  to such paying agent).  Such notice will
                         indicate  whether  the  obligations  of any  issuer  of
                         credit    support   are   sufficient   to   cover   all
                         delinquencies.   If  they  are,  the   distribution  on
                         February  25  will  include  an  amount  equal  to  the
                         principal  and interest  (adjusted to the  Pass-Through
                         Rates  for  the  related  Mortgage  Loans)  due  on the
                         Mortgage Loans on February 1. If not, the  distribution
                         will  include  only those  payments  due on  February 1
                         which have been  actually  received  and posted  before
                         February  18. In addition,  in either  case,  Principal
                         Prepayments  posted in January  will be included in the
                         February 25 distribution together with interest thereon
                         for  the  entire  month  of  January,  adjusted  to the
                         Pass-Through  Rate.  The  Servicer  will deposit in the
                         Certificate  Account  on  February  24  the  difference
                         between such interest on such Principal Prepayments for
                         such entire month and the amount of interest  (adjusted
                         to the  Pass-Through  Rate) paid by the  Mortgagors  on
                         such Principal Prepayments; provided, however, that the
                         amount of such deposit  shall not exceed (i)  Servicing
                         Compensation  (exclusive  of any amount  designated  as
                         "additional  servicing  compensation"  in  the  related
                         Prospectus   Supplement,   and  subject  to  any  limit
                         described   therein)  with  regard  to  the  Affiliated
                         Mortgage  Loans and (ii) the Master  Servicing Fee with
                         regard to the CitiMae Mortgage Loans.

February 25 ..........   Distribution Date. On February 25, the Trustee (or such
                         other  paying  agent as may be specified in the related
                         Prospectus  Supplement) will distribute the amounts set
                         forth in the notice to it on February  22 as  available
                         for  distribution.  If  CMI is the  paying  agent,  the
                         Servicer  will  furnish  or  cause  such  notice  to be
                         furnished to the Trustee on or before the  Distribution
                         Date.  If a payment due  February 1 is received  from a
                         Mortgagor  and  posted  on or after  February  18 and a
                         Certificate  Account Advance has been made with respect
                         to such  payment,  such payment will be deposited  into
                         the Certificate Account as reimbursement therefor. If a
                         Voluntary Advance or a payment under credit support has
                         been  made  with   respect  to  such   payment  from  a
                         Mortgagor,  the  Servicer  will  withdraw the amount of
                         such payment from the Certificate  Account to reimburse
                         the entity making the  Voluntary  Advance or the issuer
                         of any credit  support.  If no such  advance or payment
                         has been made, such late payment will be passed through
                         to the  CitiCertificateholder  at the  time of the next
                         distribution.

     Succeeding  months  follow the above,  except  with  respect to the Cut-Off
Date.

COLLECTION AND OTHER SERVICING PROCEDURES

  Affiliated Mortgage Loans

     The Issuer or the  Servicer  will make  reasonable  efforts to collect  all
payments  called for under the Affiliated  Mortgage Loans and shall,  consistent
with the  Pooling  Agreement,  follow  such  collection  procedures  as it deems
necessary or advisable.  Consistent  with the above,  the Issuer or the Servicer
may, in its  discretion,  (i) waive any late payment charge or any prepayment or
other charge in connection  with the  prepayment of an Affiliated  Mortgage Loan
and  (ii)  arrange  with  a  Mortgagor  a  schedule  for  the   liquidation   of
delinquencies  running for no more than 180 days after the  applicable Due Date.
Such  arrangement  will be made only upon  determining that the coverage of such
Mortgage Loan by any Primary Mortgage Insurance Policy will not be affected.  In
the  event  of any  such  arrangement,  but only to the  extent  of an  issuer's
obligations  under  credit  support,  such issuer of credit  support  will honor
requests  for  payment or  otherwise  distribute  funds with  respect to such an
Affiliated  Mortgage  Loan during the scheduled  period in  accordance  with the
amortization  schedule thereof and without regard to the temporary  modification
thereof.

                                      A-14
<PAGE>

     If  property  subject to a Mortgage  has been or is about to be conveyed by
the Mortgagor and the related Mortgage Loan includes a due-on-sale  clause,  the
Issuer or the Servicer is generally  obligated to accelerate the maturity of the
Mortgage  Loan.  If  it  reasonably  believes  it  is  unable  to  enforce  such
due-on-sale clause, the Issuer or the Servicer will enter into an assumption and
modification  agreement  with the  person to whom such  property  has been or is
about to be  conveyed,  upon  receipt of  assurance  that the  Primary  Mortgage
Insurance  Policy covering such Mortgage Loan will not be affected,  pursuant to
which such person becomes liable under the Mortgage Note or the Cooperative Note
and (except with respect to CFSB Pools) the  original  Mortgagor,  to the extent
permitted by applicable law, remains liable thereon.  The mortgage rate borne by
the related fixed rate Mortgage  Note or  Cooperative  Note may not be decreased
and the mortgage  rate borne by the related  adjustable  rate  Mortgage  Note or
Cooperative Note may not be changed in connection with any such assumption.  The
method for determining any increase in the mortgage rate will be provided for in
the related fixed rate Mortgage Note or  Cooperative  Note. Any fee collected by
the Issuer or the Servicer for entering into any such assumption  agreement will
be retained by the Issuer or the Servicer, as additional servicing compensation.
With regard to  circumstances  in which the Issuer or the Servicer may be unable
to enforce  due-on-sale  clauses,  see "--Certain  Legal Aspects of the Mortgage
Loans--Enforceability   of   Certain   Provisions,    Prepayment   Charges   and
Prepayments."

     In addition  to a  Certificate  Account,  the Issuer or the  Servicer  will
maintain  with a depository,  expected to be Citibank  (New York State),  in the
name of its Trustee, a servicing account (a "Servicing Account") with respect to
each  related  Series  (which  account may include  funds with  respect to other
similar mortgage pass-through  certificates) and will deposit and retain therein
all payments of taxes,  assessments or comparable items received for the account
of the Mortgagors  relating to Affiliated  Mortgage Loans.  Withdrawals from any
Servicing  Account may be made only to effect  payment of taxes,  assessments or
comparable  items,  to reimburse such party out of related  collections  for any
cost  incurred  in paying  taxes and  assessments  or  otherwise  preserving  or
protecting  the value of the  Mortgages,  to refund to  Mortgagors  any  amounts
determined  to be overages,  to pay interest to  Mortgagors  on balances in such
Servicing  Account to the extent required by law and to clear and terminate such
Servicing  Account at the  termination  of the related  Pooling  Agreement.  (PA
Section 3.11)

     The Issuer or the Servicer  will  exercise its best  reasonable  efforts to
maintain  and keep in full force and effect such primary  mortgage  insurance as
specified under "General" above and in the related Prospectus  Supplement for so
long  as such  insurance  is  required  pursuant  to the  Pooling  Agreement  as
specified in such section and in such Prospectus  Supplement.  Primary  mortgage
insurance may be replaced by substantially  equivalent insurance but only if (i)
each nationally recognized  statistical rating organization that initially rated
the Series advises the Issuer that such  replacement  will not adversely  affect
the  current  rating of such  Series or (ii) the  claims-paying  ability  of the
substitute  primary  mortgage  insurance  company  is  rated  in  the  same,  an
equivalent  or a higher  category  or  categories  as such  Series  by each such
nationally recognized statistical rating organization.

  CitiMae Mortgage Loans

     Pursuant to the Pooling  Agreement,  the Servicer will be  responsible  for
servicing and  administering the CitiMae Mortgage Loans. The Servicer intends to
perform such servicing and administrative functions principally through CitiMae,
Inc., as Subservicer, which will act for and on behalf of the Servicer. See "The
Originators--CitiMae,  Inc." in the body of the Prospectus.  The Subservicer has
entered or will enter into  contracts  with  approved  servicers to perform,  as
independent  contractors,  certain servicing functions for the Servicer.  One or
more  servicers  which  are  affiliates  of the  Servicer  may  perform  similar
functions  under other  contracts  with  respect to the CitiMae  Mortgage  Loans
originated  by  affiliates  of CitiMae.  The  Servicer  will at all times remain
responsible for the performance of its duties under the Pooling Agreement.

     The  Servicer  will agree to perform  diligently  all  services  and duties
customary to the servicing by prudent mortgage lending institutions of mortgages
of the same type as the Mortgage Loans in those  jurisdictions where the related
Mortgaged  Properties  are  located.  The duties to be  performed  by a servicer
include   collection  and   remittance  of  principal  and  interest   payments,
administration of mortgage escrow accounts,  collection of insurance claims and,
if necessary, foreclosure. The Servicer will monitor each servicer's performance
and will have the right to remove a servicer of any CitiMae Mortgage Loan at any
time for  cause.  In the  event  of any such  termination,  the  Servicer  would
continue to be responsible  for servicing such CitiMae  Mortgage Loans and would
designate  a  substitute  servicer  (which  may  include  an  affiliate  of  the
Subservicer).  During  the  period  necessary  to  effect  the  transfer  of the
servicing functions to any such substitute  servicer,  or to the Servicer in the
event the Servicer shall perform such servicing


                                      A-15
<PAGE>

functions itself, the servicer who has been terminated shall continue to perform
all of its duties and  responsibilities  with  respect to the  CitiMae  Mortgage
Loans  serviced  by it  until  such  time as the  Servicer  notifies  it of such
transfer. The Servicer shall be entitled to retain the same servicing fee as was
paid to the  servicer  in the event the  Servicer  shall  elect to perform  such
servicing functions itself.

     The Servicer or the Subservicer will agree to proceed diligently to collect
all payments called for under the Mortgage Notes. Consistent with the above, the
Servicer or the  Subservicer  may, in its  discretion,  (i) waive any prepayment
charge,  assumption  fee, late payment  charge or any other charge in connection
with the prepayment of a CitiMae Mortgage Loan and (ii) arrange with a Mortgagor
a plan of relief,  other than a modification or extension of the Mortgage,  when
appropriate rather than recommending liquidation.  Such arrangement will be made
only upon  determining  that the coverage of such CitiMae  Mortgage  Loan by any
Primary Mortgage Insurance Policy will not be affected. In the event of any such
arrangement,  but only to the extent of the amount of any  credit  support,  the
provider of such credit  support  will honor  requests  for payment or otherwise
distribute funds with respect to such CitiMae Mortgage Loan during the scheduled
period in accordances with the amortization  schedule thereof and without regard
to the temporary  modification  thereof.  In addition,  in the event of any such
arrangement, the Servicer's obligation to make Voluntary Advances on the related
CitiMae  Mortgage Loan shall continue during the scheduled  period to the extent
such Voluntary Advances are not made by the subservicer.

     Under the  Pooling  Agreement,  the  Servicer  will be  required to enforce
"due-on-sale"  clauses with respect to the CitiMae  Mortgage Loans to the extent
contemplated  by the  terms of the  CitiMae  Mortgage  Loans  and  permitted  by
applicable  law.  Where an  assumption  of, or  substitution  of liability  with
respect  to, a  CitiMae  Mortgage  Loan is  required  by law,  upon  receipt  of
assurance  that the Primary  Mortgage  Insurance  Policy  covering  such CitiMae
Mortgage  Loan  will  not be  affected,  the  Master  Servicer  may  permit  the
assumption of a CitiMae  Mortgage  Loan,  pursuant to which the Mortgagor  would
remain liable on the Mortgage Note, or a substitution  of liability with respect
to such Mortgage Loan,  pursuant to which the new Mortgagor would be substituted
for the  original  Mortgagor  as being  liable on the  Mortgage  Note.  Any fees
collected for entering into an assumption or substitution of liability agreement
may be  retained  by the  Servicer  as  additional  servicing  compensation.  In
connection with any assumption or  substitution,  the Mortgage Rate borne by the
related Mortgage Note may not be changed.

     The Pooling  Agreement  may require the Servicer to establish  and maintain
one or more escrow accounts into which Mortgagors  deposit amounts sufficient to
pay  taxes,   assessments,   hazard  insurance  premiums  or  comparable  items.
Withdrawals  from the escrow  accounts  maintained for Mortgagors may be made to
effect timely payments of taxes,  assessments and hazard  insurance  premiums or
comparable  items,  to reimburse  the Servicer  out of related  assessments  for
maintaining  hazard insurance,  to refund to Mortgagors amounts determined to be
overages,  to remit to  Mortgagors,  if required,  interest  earned,  if any, on
balances  in any of the escrow  accounts,  to repair or  otherwise  protect  the
Mortgaged  Property and to clear and terminate any of the escrow  accounts.  The
Servicer will be solely  responsible for  administration  of the escrow accounts
and will be expected to make  advances to such account when a deficiency  exists
therein.

     The Issuer or the Servicer and any successor servicer  appointed  following
an Event of Default,  will be required to maintain  certain  insurance  covering
errors and  omissions  in the  performance  of its  obligations  as servicer and
certain fidelity bond coverage ensuring against losses through wrongdoing of its
officers, employees and agents. (PA Section 6.07)

  Third Party Loans

     Pursuant to the Pooling  Agreement,  the Servicer will be  responsible  for
servicing  and  administering  the Third Party Loans.  The  Servicer  intends to
perform such servicing and administrative  functions  principally  through Third
Party Originators,  as subservicers,  with respect to Third Party Loans acquired
on a servicing-retained  basis. See "The  Originators--Third  Party Originators"
herein. The Subservicer will act for and on behalf of the Servicer. The Servicer
will at all times remain responsible for the performance of its duties under the
Pooling Agreement.

HAZARD INSURANCE

     The  Issuer or the  Servicer  will  cause a hazard  insurance  policy to be
maintained  for each Real  Estate  Loan.  The  coverage  of each such  policy is
required  to be in an  amount  not  less  than  the  lesser  of (x) the  maximum
insurable  value (as  established by the property  insurer) of the  improvements
securing such Real Estate Loan if such amount is less


                                      A-16
<PAGE>

than the unpaid  principal  balance  of the Real  Estate  Loan,  and (y) (i) the
principal balance owing on such Real Estate Loan (if such amount is greater than
or equal to 80% but is less  than or equal to 100% of the  insurable  value)  or
(ii) 80% of the  insurable  value (if the  principal  balance on the Real Estate
Loan is less than 80% of the insurable  value).  As set forth above, all amounts
collected  by the  Servicer  under any hazard  policy  (except for amounts to be
applied to the restoration or repair of property subject to the related Mortgage
or property  acquired by  foreclosure  or amounts  released to the  Mortgagor in
accordance with normal servicing procedures) will be deposited in the applicable
Certificate  Account.  In the event that the Servicer maintains a blanket policy
insuring  against  hazard  losses  on  all  of  the  Mortgage  Loans,  it  shall
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 Servicer will deposit in the Certificate  Account all
sums which would have been deposited  therein but for such clause.  The Servicer
is required to maintain a fidelity bond and errors and omissions policy or their
equivalent with respect to officers and employees which provide coverage against
losses  which  may be  sustained  as a  result  of an  officer's  or  employee's
misappropriation  of funds or  errors  and  omissions  in  failing  to  maintain
insurance,  subject to certain limitations as to amount of coverage,  deductible
amounts, conditions,  exclusions and exceptions in the form and amount specified
in the Pooling Agreement.

     In general,  the standard form of fire and extended  coverage policy covers
physical  damage to or destruction of the  improvements on the property by fire,
lightning,  explosion,  smoke,  windstorm  and  hail,  riot,  strike  and  civil
commotion,  subject to the  conditions  and  exclusions  particularized  in each
policy.  The policies relating to such Real Estate Loans will be underwritten by
different   insurers  and  therefore  will  not  contain   identical  terms  and
conditions.  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. Where the property securing such a Real Estate Loan is located in
a federally  designated  special  flood  hazard  zone,  the  applicable  Pooling
Agreement will require that flood insurance be maintained.

     Most of the  properties  securing  the Real Estate Loans will be covered by
homeowners'  insurance  policies which, in addition to the standard form of fire
and  extended  coverage,   provide  coverage  for  certain  other  risks.  These
homeowners'  policies  typically contain a "coinsurance"  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 improvements on the
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 a partial loss shall not exceed the lesser 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  required  to be  maintained  on the
improvements  securing such Real Estate Loans may decline, and since residential
properties  generally  have  historically  appreciated  in value over time,  the
effect of coinsurance in the event of partial loss may be that hazard  insurance
proceeds will be insufficient to restore fully the damaged property. However, to
the extent of the amount  available to cover hazard losses under any Guaranty or
other credit support,  CitiCertificateholders  will not suffer loss by reason of
delinquencies or foreclosures following hazard losses, whether or not subject to
coinsurance clauses.

     The  Issuer  and the  Servicer  will not  require  that a  hazard  or flood
insurance  policy  be  maintained  for  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,  a cooperative  and the related  borrower on a Cooperative  Note do not
maintain such  insurance or do not maintain  adequate  coverage or any insurance
proceeds are not applied to the restoration of the damaged  property,  damage to
such  borrower's  cooperative  apartment or such  cooperative's  building  could
significantly reduce the value of the collateral securing such Cooperative Note.

     If an issuer's  obligations  under credit support are  exhausted,  and if a
Mortgagor  defaults on his  obligations to make payments on a Mortgage Loan, the
CitiCertificateholders  will bear all risk of loss  resulting from hazard losses
not covered by hazard insurance.

                                      A-17
<PAGE>

PRIMARY MORTGAGE INSURANCE

     A Mortgage  Loan  secured by a Mortgaged  Property  having a  loan-to-value
ratio in excess of 80% may or, in the case of a CitiMae Mortgage Loan, will have
a policy (a "Primary Mortgage Insurance Policy") insuring against default all or
a specified portion of the principal amount thereof in excess of such percentage
of the value of the Mortgaged  Property,  as specified in the related Prospectus
Supplement.

     Evidence of each Primary Mortgage  Insurance Policy will be provided to the
Trustee  simultaneously with the transfer to the Trustee of the related Mortgage
Loan. The Servicer, on behalf of itself, the Trustee and the Certificateholders,
is  required  to  present  claims  to the  insurer  under any  Primary  Mortgage
Insurance  Policy and to take such  reasonable  steps as are necessary to permit
recovery thereunder with respect to defaulted Mortgage Loans.  Amounts collected
by the Servicer on such claims shall be deposited in the Certificate Account for
distribution as set forth above. The Servicer will not cancel or refuse to renew
any  Primary  Mortgage  Insurance  Policy  required  to be kept in  force by the
Pooling Agreement. (PA Section 3.10)

MAINTENANCE OF INSURANCE POLICIES;  CLAIMS THEREUNDER AND OTHER REALIZATION UPON
DEFAULTED MORTGAGE LOANS

     The Servicer will exercise its best reasonable efforts to keep each Primary
Mortgage  Insurance  Policy (if any) in full force and effect at least until the
outstanding  principal  balance  of the  related  Mortgage  Note is equal to the
percentage of the appraised value of the Mortgaged  Property  specified  herein.
The  Servicer  has agreed (or will agree) to pay the  premium  for each  Primary
Mortgage Insurance Policy on a timely basis in the event that the Mortgagor does
not make such payments.

     The Servicer, on behalf of the Trustee and Certificateholders, will present
claims to the insurer under any applicable Primary Mortgage Insurance Policy and
will take such  reasonable  steps as are necessary to permit recovery under such
insurance policies respecting  defaulted Mortgage Loans. As set forth above, all
collections  by the  Servicer  under such  policies  that are not applied to the
restoration  of  the  related  Mortgage  Property  are  to be  deposited  in the
Certificate Account, subject to withdrawals as heretofore described.

     If any property securing a defaulted Mortgage Loan is damaged and proceeds,
if any, from the related hazard insurance policy are insufficient to restore the
damaged  property  to a  condition  sufficient  to  permit  recovery  under  any
applicable  Primary Mortgage Insurance Policy, the Servicer will not be required
to expend its own funds to restore  the  damaged  property  unless the  Servicer
determines  (i)  that  such  restoration  will  increase  the  net  proceeds  to
Certificateholders  upon liquidation of the Mortgage Loan after reimbursement of
the Servicer for its expenses and (ii) that such expenses will be recoverable to
it through liquidation proceeds.

     Regardless of whether recovery under any Primary Mortgage  Insurance Policy
is available  or any further  amount is payable  under the credit  support for a
Series of  Certificates,  the Servicer is nevertheless  obligated to follow such
normal  practices and  procedures as it deems  necessary or advisable to realize
upon the defaulted  Mortgage Loan.  However,  the Servicer is not required under
the  Pooling  Agreement  to expend  its own funds to  foreclose  on a  defaulted
Mortgage Loan unless it generally determines that foreclosure would increase the
net proceeds of liquidation available for distribution to Certificateholders and
its  expenditures  will be  recoverable.  If at any time no  further  amount  is
payable  under  the  credit  support  for a Series of  Certificates,  and if the
proceeds of any  liquidation  of the property  securing the  defaulted  Mortgage
Loan, if such property is liquidated, are less than the principal balance of the
defaulted Mortgage Loans plus interest accrued thereon,  Certificateholders will
realize  a  loss  in the  amount  of  such  difference  plus  the  aggregate  of
unreimbursed  advances of the Servicer  with respect to such  Mortgage  Loan and
expenses  incurred by the Servicer in connection with such proceedings which are
reimbursable under the Pooling Agreement.

REALIZATION UPON DEFAULTED MORTGAGE LOANS

     If any Mortgage Loans become Liquidating Loans, an issuer of credit support
may, if so  specified  in the related  Prospectus  Supplement,  be  obligated to
purchase  from  the  Trustee  such  Liquidating  Loans up to the  amount  of its
remaining obligations under the related credit support. The Servicer may pay the
purchase  price in  respect  of a  Liquidating  Loan on behalf of the  issuer of
credit support in order to avoid demands or draws under such credit support.  If
the  ultimate net  recovery is equal to or less than the  unreimbursed  payments
under the related  credit  support with respect to the Mortgage Loan, the amount
of an issuer's obligations under credit support will be replenished in an amount
equal to the  amount  of such  ultimate  net  recovery.  In the  event  that the
ultimate net recovery  exceeds the 


                                      A-18
<PAGE>

unreimbursed  payments,  such excess will be retained, in the case of a Guaranty
issued by  Citicorp,  by  Citicorp  as  compensation  for the  issuance  of such
Guaranty, and in the case of other credit support, the Servicer will be entitled
to  such  proceeds  unless  otherwise   specified  in  the  related   Prospectus
Supplement.  Such excess will not be applied to replenish the  remaining  Amount
Available under any credit support.  Although a CitiCertificateholder  will have
no  right  to such  excess  proceeds,  the  previous  reduction  in an  issuer's
obligations  under  credit  support  with  respect to that Series will have been
fully restored.

     If a default  occurs on a  Mortgage  Loan at a time when the  amount of the
remaining obligations under the related credit support is less than the purchase
price of such  Mortgage  Loan,  no payments  under such  credit  support for the
purchase  of such  Mortgage  Loan or to  cover  delinquencies  may be made  with
respect to such  default  unless  otherwise  provided in the related  Prospectus
Supplement.  With respect to Liquidating  Loans which are not purchased by or on
behalf of the  issuer of credit  support,  the  Issuer or the  Servicer  will be
obligated to follow such normal  practices and procedures as it deems  necessary
or advisable to realize upon a defaulted Mortgage Loan. However, the Servicer is
not required under the Pooling Agreement to expend its own funds to foreclose on
a defaulted Mortgage Loan unless it generally  determines that foreclosure would
increase  the  net  proceeds  of  liquidation   available  for  distribution  to
Certificateholders  and its  expenditures  will be recoverable.  If the Servicer
does not choose to  foreclose  on a defaulted  Mortgage  Loan,  the Servicer may
accept  payment,  in  connection  with a sale by the  Mortgagor of the Mortgaged
Property or a retention by the Mortgagor of the Mortgaged Property, in an amount
less than the outstanding  balance of the related Mortgage Loan. If the Servicer
does  choose to  foreclose  on a  defaulted  Mortgage  Loan,  the  Issuer or the
Servicer  may  (directly  or  through  an  assignee)  sell  the  property  at  a
foreclosure or trustee's or other sale,  negotiate with the Mortgagor for a deed
in lieu of  foreclosure  or, in the event a  deficiency  judgment  is  available
against the Mortgagor or other person (see "--Certain  Legal Aspects of Mortgage
Loans--Anti-Deficiency Legislation and Other Limitations on Lenders" below for a
description  of the limited  availability  of deficiency  judgments),  foreclose
against such  property and proceed for the  deficiency  against the  appropriate
person.  Although the Servicer may elect to pursue  deficiency  judgments on the
Mortgage  Loans,  the  Servicer  is  generally  not  required  under the Pooling
Agreement to do so, even if permitted by applicable law. In such  circumstances,
the  holder  of any  CitiCertificate  evidencing  an  interest  in a Pool with a
Liquidating  Loan  will  realize  a loss to the  extent  that the  ultimate  net
recovery, after reimbursement to the Issuer or the Servicer of expenses incurred
in  connection  with the  liquidation  of such  Mortgage  Loan, is less than the
outstanding  principal  balance and accrued and unpaid  interest  thereon at the
Pass-Through  Rate for such Mortgage Loan. The Pooling Agreement with respect to
a Series will require that any property acquired by the Servicer by deed in lieu
of foreclosure  with respect to a Liquidating  Loan be  administered  so that it
meets the definition of "foreclosure property" in Section 860G(a)(8) of the Code
at all times,  and so that no income  from the  rental or sale of such  property
will be "net  income  from  foreclosure  property"  within  the  meaning of Code
Section 860G(c).

     Ordinarily, the holder of collateral acquired through foreclosure maximizes
recovery by providing financing to a new purchaser.  As to collateral securing a
Cooperative  Loan, 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  proprietary  lease or  occupancy
agreement  securing that  Cooperative  Loan. See "--Certain Legal Aspects of the
Mortgage  Loans--Foreclosure  on Shares of Cooperatives" below. This approval is
usually  based on the  purchaser's  income  and net  worth  and  numerous  other
factors.  The necessity of acquiring  such approval  could,  however,  limit the
number of potential purchasers for those shares and otherwise limit the Issuer's
or the Servicer'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.
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 


                                      A-19
<PAGE>

of the tax benefits accorded tenant-stockholders of a corporation that qualifies
under  Code  Section  216(b)(1),  the  likelihood  that such a failure  would be
permitted to continue over a period of years appears remote.

     If at any time no further  amount is payable under any credit support for a
Series of CitiCertificates,  the Issuer or the Servicer may expend its own funds
to restore  property  securing a Liquidating  Loan included in such Series which
has sustained  uninsured damage, but only if it determines that such restoration
will increase the proceeds to the  CitiCertificateholders  of liquidation of the
Liquidating  Loan  after  reimbursement  of the Issuer or the  Servicer  for its
expenses.

SERVICING AND OTHER COMPENSATION AND PAYMENT OF EXPENSES

     The  Issuer's  or  Servicer's   primary   compensation  for  its  servicing
activities  in respect of a Pool will come from the payment to it of a servicing
fee. A  servicing  fee will be paid to the Issuer in respect of  Mortgage  Loans
underlying a Pool as described under "Description of Certificates--The Servicer"
in the body of this  Prospectus.  Such  servicing  fee paid to the  Servicer  in
respect  of a Pool may be in an amount  equal to a fixed  annual  percentage  as
specified in the related  Prospectus  Supplement  of the  outstanding  principal
balance of such Mortgage Loans on which interest is payable.  In such event, the
rate of servicing  compensation  for each Mortgage Loan in a Pool will be fixed,
and the Pass-Through  Rates of the Mortgage Loans will differ based on different
mortgage  rates.  Accordingly,  the weighted  average of the fixed  Pass-Through
Rates of the Mortgage Loans underlying any Series of CitiCertificates  will vary
each month based on the level of principal repayments (including prepayments) on
the underlying  fixed rate Mortgage  Loans.  In such event,  because the rate of
servicing  compensation  is  fixed  for  each  Mortgage  Loan,  disproportionate
principal  payments among Mortgage Loans bearing  different  mortgage rates in a
Pool may affect the yield to the holder of a  CitiCertificate,  and accordingly,
may  affect  the  market  value of such  CitiCertificate.  Alternatively,  if so
specified in the related Prospectus Supplement, the Pass-Through Rate may be the
same (or  calculated in the same manner) for each Mortgage Loan in the Pool, and
the rate of servicing  compensation with respect to each Mortgage Loan (equal to
the  difference  between  the  mortgage  rate  for such  Mortgage  Loan and such
Pass-Through  Rate) may differ among  different  Mortgage  Loans. In such event,
disproportionate  principal  payments  among  Mortgage  Loans bearing  different
mortgage rates in a Pool will not affect the weighted average Pass-Through Rate,
but may affect the weighted average rate of servicing compensation. In addition,
the rate of servicing  compensation  and the  Pass-Through  Rate may both differ
among  different  Mortgage  Loans.  Additional  information  with respect to the
Pass-Through  Rates of the  Mortgage  Loans and the related  rates of  servicing
compensation  will  be  set  forth  in the  related  Prospectus  Supplement.  As
principal  payments are made on the Mortgage Loans,  the portion of each monthly
payment which  represents  interest will decline and thus the primary  servicing
compensation will ordinarily decrease as the Mortgage Loans amortize.

     In addition to its primary servicing  compensation,  the Issuer or Servicer
will retain all prepayment  charges,  if any,  assumption  fees and late payment
charges, all to the extent collected from Mortgagors,  and has agreed to pay all
such  amounts  over to any  related  subservicer.  Based  upon the  Originators'
experience and the experience of the residential  financing  industry  generally
with respect to conventional one- to four-family real estate mortgages,  such as
the Mortgage Loans, it appears that compensation  from these additional  sources
will be negligible in amount.

     The Issuer or the Servicer will be responsible (to the extent  specified in
the  related  Prospectus  Supplement)  for  payment  of  interest  in respect of
prepayments   of  principal  of  the  Mortgage   Loans  to  be   distributed  to
CitiCertificateholders  in excess of the amount of such  interest  received from
the Mortgagors.

     The Issuer or the  Servicer  will pay all expenses  incurred in  connection
with  its  servicing  of  the  related   Mortgage   Loans  (subject  to  limited
reimbursement as described herein),  including,  without limitation,  payment of
the fees and  disbursements  of the  Trustee  (to the  extent  such fees are not
deducted  from  amounts   received  on  the  Mortgage   Loans)  and  independent
accountants,   payments  of  all  fees  and  expenses  in  connection  with  the
realization upon defaulted  Mortgage Loans, and payment of expenses  incurred in
connection with distributions and reports to CitiCertificateholders.

     If no further amount is payable under any credit support for a Series,  the
Issuer or the Servicer will be entitled to  reimbursement  for certain  expenses
incurred by it in connection with the  liquidation of defaulted  Mortgage Loans,
and the  holders of  CitiCertificates  will  suffer  loss to the extent that the
proceeds of the liquidation  proceedings respecting any defaulted Mortgage Loan,
after  reimbursement of the Issuer's or the Servicer's  expenses,  are less than
the principal  balance of such Mortgage Loan. In addition,  the Servicer will be
entitled to reimbursement of certain  expenditures made by it in connection with
the  preservation,  protection or restoration of the security for a defaulted or
foreclosed Mortgage Loan.

                                      A-20
<PAGE>

CERTAIN LEGAL ASPECTS OF THE MORTGAGE LOANS

  Mortgages

     The Real  Estate  Loans  will be secured  by either  mortgages  or deeds of
trust, depending upon the prevailing practice in the state in which the property
subject to a Real Estate Loan is located.  A mortgage or a deed of trust creates
a lien upon the real property  encumbered by such  instrument and represents the
security for the repayment of an obligation  that is customarily  evidenced by a
promissory note or a bond. It is not prior to the lien for real estate taxes and
assessments  and certain  other liens.  Priority  with respect to mortgages  and
deeds of trust  depends on their terms and  generally  on the order of recording
with a state,  county or municipal office.  There are two parties to a mortgage,
the mortgagor,  who is the  borrower/homeowner or the land trustee (as described
below), and the mortgagee, who is the lender. Under the mortgage instrument, the
mortgagor delivers to the mortgagee a note or bond and the mortgage. In the case
of a land trust,  title to the property is held by a land  trustee  under a land
trust  agreement,  while the  borrower/homeowner  is the beneficiary of the land
trust;  at  origination  of a mortgage  loan,  the borrower  executes a separate
undertaking to make payments on the mortgage note. The security arrangements for
a living  trust (also known as a family  trust or inter vivos trust) are similar
to those for a land trust,  except that the borrower executes the mortgage note.
Although a deed of trust is similar to a mortgage,  a deed of trust formally has
three parties,  the trustor  (similar to a mortgagor),  who is the homeowner and
may or may not be the borrower, the beneficiary (similar to a mortgagee), who is
the lender, and the trustee, a third-party  grantee.  Under a deed of trust, the
trustor  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.  The  mortgagee's  authority  under a  mortgage  and  the  trustee's
authority  under a deed of trust are governed by law, the express  provisions of
the  mortgage  or deed of trust,  and,  in some  cases,  the  directions  of the
beneficiary.

  Cooperatives

     All cooperative apartments relating to the Cooperative Loans are located in
the States of New York, New Jersey, Illinois and Maryland and in the District of
Columbia.  The private,  non-profit,  cooperative apartment corporation 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
apartment  building  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.  Also, 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  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  occupancy 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, if
allowed under state law, 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 


                                      A-21
<PAGE>

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.  See
"Foreclosure on Shares of Cooperatives" below.

  Foreclosure on Mortgages

     Foreclosure of a deed of trust is generally  accomplished by a non-judicial
trustee's sale under a specific  provision in the deed of trust which authorizes
the  trustee to sell the  property  upon any default by the  borrower  under the
terms of the note or deed of trust.  In some  states,  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 a notice of default and notice of sale.  In
addition, the trustee in some states must provide notice to any other individual
having an interest in the real property,  including any junior lienholders.  The
trustor,  borrower or any 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.
Generally,  state law  controls  the amount of  foreclosure  expenses and costs,
including  attorney's fees,  which may be recovered by a lender.  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 or the courthouse door of the county in which the
property is located,  recorded and sent to all parties having an interest in the
real property.

     An action to foreclose a mortgage is an action to recover the mortgage debt
by  enforcing  the  mortgagee's  rights under the  mortgage.  It is regulated by
statutes and rules and subject  throughout to the court's equitable powers.  For
example, in Texas it is necessary to give both notice of intent to accelerate as
well as notice of acceleration  of an installment  note, and in New Jersey it is
also necessary to give a notice of intent to foreclose.  Generally,  a mortgagor
is bound by the terms of the  mortgage  note and the mortgage as made and cannot
be relieved from his default.  However,  since a foreclosure action is equitable
in nature  and is  addressed  to a court of  equity,  the  court  may  relieve a
mortgagor  of a default  and deny the  mortgagee  foreclosure  on proof that the
mortgagor's default was neither wilful nor in bad faith and that the mortgagee's
action was such as to establish a waiver,  or fraud,  bad faith,  oppressive  or
unconscionable  conduct  as to  warrant a court of equity to refuse  affirmative
relief to the  mortgagee.  Under  certain  circumstances  a court of equity  may
relieve the mortgagor from an entirely  technical default where such default was
not willful.

     A foreclosure action is subject to most of the delays and expenses of other
lawsuits if defenses or counterclaims are interposed,  sometimes requiring up to
several  years to complete.  Substantial  delays and expenses may be incurred if
the  defaulting  mortgagor  files a petition under the federal  bankruptcy  laws
prior  to the  initiation  of a  foreclosure  action  or  during  its  pendency.
Moreover,  recent judicial  decisions  suggest that a  non-collusive,  regularly
conducted  foreclosure  sale  may  be  challenged  as a  fraudulent  conveyance,
regardless of the parties'  intent,  if a court determines that the sale was for
less than fair  consideration  and such sale  occurred  while the  mortgagor was
insolvent  and  within one year (or within  the  statute of  limitations  if the
trustee in bankruptcy  elects to proceed under state fraudulent  conveyance law)
of the  filing  of  bankruptcy.  Similarly,  a suit  against  the  debtor on the
mortgage note or bond may take several years.

     In case of foreclosure under either a mortgage or a deed of trust, the sale
by the referee or other  designated  officer or by the trustee is a public sale.
However,  because of the difficulty potential third party purchasers at the sale
have in determining the exact status of title and because the physical condition
of the property may have deteriorated during the foreclosure proceedings,  it is
very often the case that a third  party does not  purchase  the  property at the
foreclosure  sale.  Rather,  it is more  common for the lender to  purchase  the
property from the trustee or referee for an amount equal to the principal amount
of the  mortgage  or deed of trust  plus  accrued  and unpaid  interest  and the
expenses  of  foreclosure.  Thereafter,  the lender  will  assume the burdens of
ownership,  including obtaining casualty insurance, paying real estate taxes and
any special municipal  assessments which may have priority over the mortgage 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. Any loss may
be reduced by the receipt of any mortgage  insurance  proceeds.  The


                                      A-22
<PAGE>

Servicer is not required under the Pooling  Agreement to expend its own funds to
foreclose  on a defaulted  Mortgage  Loan unless it  generally  determines  that
foreclosure  would  increase  the net  proceeds  of  liquidation  available  for
distribution to  Certificateholders  and its  expenditures  will be recoverable.
There may be circumstances,  for example, the possibility of incurring liability
for environmental damage or a substantial decline in the value of the underlying
property,  which  would  cause  the  Servicer  to elect  not to  foreclose  on a
defaulted Mortgage Loan.

     Foreclosure  of a  mortgage  is  accomplished  in New York,  New Jersey and
Florida in most cases, and in Illinois in all cases, by an action in foreclosure
culminating  in a  judicial  sale (or,  in the case of  Illinois,  a  judicially
approved sale) of the real property by a court-appointed referee, sales agent or
other  official  following  a  judgment  of  foreclosure.   The  purposes  of  a
foreclosure  action are to enable the mortgagee to realize upon its security and
to bar  the  mortgagor,  persons  with  liens  subordinate  to  the  foreclosing
mortgagee,  and certain other  persons with  interests in the real property from
their  statutory  rights and "equity of  redemption."  The doctrine of equity of
redemption provides that, until the property covered by a mortgage has been sold
in accordance with a properly conducted  foreclosure and foreclosure sale, those
having an equity of redemption may redeem the property by paying the entire debt
with  interest and, in the event that a  foreclosure  action is pending,  all or
part of the costs of such action.  Those  having a statutory  right or equity of
redemption must be made parties and duly summoned to the  foreclosure  action in
order for their statutory right or equity of redemption to be barred.

     In  Connecticut a court in its discretion may order either a foreclosure by
judicial sale or strict foreclosure.  Generally, Connecticut courts grant strict
foreclosure  unless the United States is a party or the court upon the motion of
a party or upon its own motion  determines  that the net value of the  mortgaged
property is materially in excess of the debt being foreclosed. If a court orders
strict  foreclosure,  it will  establish a "law day" for each  defendant  in the
foreclosure  action.  The period of time  between  the entry of the  judgment of
foreclosure  and the first  law day will be set by the court as at least  twenty
days after the date of the judgment.  The first law day will be for the owner of
the mortgaged property, and then, in sequence,  there will be a law day for each
party having a lien on, or other  interest in, the mortgaged  property  which is
junior  to the  foreclosing  mortgagee's  interest,  in  inverse  order of their
priority. Unless a party assigned a prior law day redeems by paying the debt due
the foreclosing mortgagee in full, each party will have the right on his law day
to redeem the mortgaged property by paying off the foreclosing mortgagee;  after
redemption,  the redeeming party will own the mortgaged  property subject to any
other liens or interests as to which a law day has not passed.  If a party fails
to redeem on his law day, his rights in the mortgaged property are extinguished.
If no  party  redeems,  the  foreclosing  mortgagee  becomes  the  owner  of the
mortgaged  property,  subject to other liens or interests which are prior to the
mortgage  foreclosed or as to which the holders  thereof were not parties to the
foreclosure  action. If the court orders  foreclosure by sale rather than strict
foreclosure,  a  committee  is  appointed  by the  court to sell  the  mortgaged
property at auction.  The proceeds of the sale will then be distributed first to
pay the costs of the sale and then to  satisfy  the debts of the  parties in the
order of their priority to the extent the proceeds permit.

     Upon foreclosure of a Connecticut  mortgage,  a mortgagor who is unemployed
or  under-employed  may,  in  certain  circumstances,  be  granted a stay of the
foreclosure  proceedings not to exceed six months,  and a  restructuring  of the
mortgage  debt  to  add  unpaid  interest  and  certain  other  charges  to  the
outstanding  principal  amount of the debt. The total amount of the restructured
debt may not exceed the larger of the original  mortgage debt or 90% of the fair
market value at the time of restructuring and the restructured  payments must be
made over the remaining portion of the original term of the mortgage.

     In  California,  foreclosure  can be judicial or  nonjudicial.  The primary
distinction between a judicial and a nonjudicial foreclosure is that in the case
of a judicial sale a deficiency judgment may be obtained, while in the case of a
non-judicial  foreclosure,  no deficiency judgment is allowed.  Since California
borrowers  are  protected by  anti-deficiency  legislation  with respect to most
purchase-money deeds of trust, the issuer will, in almost all instances,  pursue
non-judicial foreclosure.  A second difference between judicial and non-judicial
foreclosures is that in the case of the former,  if the  beneficiary  chooses to
maintain its right to a deficiency judgment, the trustor may redeem the property
by paying the amount bid at the sale plus statutory fees, costs and interest for
a period of three months (when the  proceeds of sale are  sufficient  to pay the
lender in full) or one year (when the sale proceeds are  insufficient to pay the
lender in full) after the sale.  The  purchaser  at the sale,  whether it be the
lender  or a third  party,  may not  demand  possession  of the  property  until
expiration of the redemption period;  although, the redeemer will be required to
pay reasonable rental value upon redemption.

                                      A-23
<PAGE>

     A lender  may  accept a deed in lieu of  foreclosure  instead  of  pursuing
either  judicial  or  nonjudicial  foreclosure.  By  accepting a deed in lieu of
foreclosure,  the lender  takes the property  back subject to any junior  liens,
which would be subordinated or released of record.(1)

     In addition,  California law can delay  foreclosure  and collection of late
charges if a lender  participates in the sale of credit disability  insurance in
connection with one of its loans and the borrower suffers a disability.

     In Illinois, a borrower in a mortgage foreclosure suit is granted the right
to reinstate a mortgage prior to the expiration of ninety days from the date the
court  obtains  jurisdiction  over all  mortgagors  in respect  of the  property
subject to such mortgage foreclosure.  In the event such right is exercised, the
delinquent  borrower is required  to pay only the actual  delinquency  costs and
reasonable  attorney  fees,  but not any amount  which is due as a result of any
acceleration  provisions  in the note  evidencing  the debt.  As a  result,  the
borrower  may  unilaterally  reinstate  the  mortgage  loan  and  terminate  the
foreclosure  proceedings.  In addition, when the lender bids less than the total
debt at the judicial  sale,  Illinois  law provides the borrower  with a special
30-day right of redemption in the foreclosure of a single-family residence. Upon
exercise of such right,  the  borrower  need only redeem by paying the amount of
the sale price,  plus interest and costs, and not the deficiency.  Many Illinois
mortgages,  however, give the mortgagors greater contractual rights to reinstate
a mortgage than are granted under Illinois statutes.

  Foreclosure on Shares of Cooperatives

     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 By-laws, as well as
in the  proprietary  lease or  occupancy  agreement,  and may be canceled 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 a sale  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.


- ----------
     (1) Even a transfer at a nonjudicial  foreclosure sale has been held by one
federal  court of appeals to  constitute  a  fraudulent  conveyance.  The United
States Court of Appeals for the Ninth Circuit (in which  California is located),
however,  has held to the contrary.  Amendments to the federal  bankruptcy  laws
addressed  this conflict,  at least in the  bankruptcy  context (as opposed to a
state court fraudulent  conveyance claim), but not with complete clarity.  It is
probable that a court would interpret these  amendments to permit  challenging a
nonjudicial foreclosure sale as a fraudulent conveyance if the property is worth
significantly  more  than  the  amount  paid  at  the  sale.   Citibank  Service
Corporation,  a subsidiary of CFSB doing business as Citibank  Insurance Agency,
sells such  insurance in  connection  with  Mortgage  Loans  originated by CFSB.
Finally,  in California,  the borrower has until 5 days before a trustee sale to
reinstate the loan.


                                      A-24
<PAGE>

     In New  York and New  Jersey,  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  corporation  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.

     The Servicer is not required under the Pooling  Agreement to expend its own
funds to foreclose on a defaulted  Mortgage Loan unless it generally  determines
that  foreclosure  would increase the net proceeds of liquidation  available for
distribution to  Certificateholders  and its  expenditures  will be recoverable.
There may be circumstances,  for example, the possibility of incurring liability
for environmental damage or a substantial decline in the value of the underlying
property,  which  would  cause  the  Servicer  to elect  not to  foreclose  on a
defaulted Mortgage Loan.

  Rights of Redemption

     In some states,  after sale pursuant to a deed of trust or foreclosure of a
mortgage,  the trustor or mortgagor and  foreclosed  junior  lienors are given a
statutory period in which to redeem the property from the foreclosure  sale. The
right of redemption should be distinguished from the equity of redemption, which
is a nonstatutory right that must be exercised prior to the foreclosure sale. In
some  states,  redemption  may occur only upon  payment of the entire  principal
balance of the loan,  accrued  interest  and expenses of  foreclosure.  In other
states,  redemption may be authorized if the former borrower pays only a portion
of the sums due. The effect of a statutory  right of  redemption  is to diminish
the  ability  of the  lender  to sell  the  foreclosed  property.  The  right of
redemption would defeat the title of any purchaser from the lender subsequent to
foreclosure or sale under a deed of trust. Consequently, the practical effect of
a right of  redemption is to force the lender to retain the property and pay the
expenses of ownership until the redemption period has run. In some states, there
is no right to redeem  property  after a trustee's sale under a deed of trust or
after a foreclosure action.

  Anti-Deficiency Legislation and Other Limitations on Lenders

     Certain states have imposed statutory prohibitions which limit the remedies
of a beneficiary under a deed of trust or a mortgagee under a mortgage.  In some
states,  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 former
borrower equal in most cases to the difference  between the net amount  realized
upon the public  sale of the real  property  and the  amount due to the  lender.
Other  statutes  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.
Finally,  other statutory  provisions limit any deficiency  judgment against the
former borrower  following a judicial sale to the excess of the outstanding debt
over the fair market value of the  property at the time of the public sale.  The
purpose of these  statutes is generally to prevent a beneficiary  or a mortgagee
from  obtaining a large  deficiency  judgment  against the former  borrower as a
result of low or no bids at the judicial sale.

     Although  the  Servicer  may elect to pursue  deficiency  judgments  on the
Mortgage  Loans,  the  Servicer  is  generally  not  required  under the Pooling
Agreement to do so, even if permitted by applicable law.

     For Mortgage Loans Secured by Property in New York. Section 1371 of the New
York Real  Property  Actions and  Proceedings  Law  provides  that no award of a
deficiency judgment can be made unless the court has personal  jurisdiction over
the defendant.  Moreover,  if no motion for a deficiency judgment is made within
90 days of the  consummation  of the  sale by the  delivery  of the  deed to the
purchaser,  the proceeds of the foreclosure sale,  regardless of the amount, are
deemed in full  satisfaction  of the  mortgage  debt and no right to recover any
deficiency  in any action or  proceeding  exists.  Section  1301 of the same law
limits the mortgagee's right to bring separate actions for the


                                      A-25
<PAGE>

mortgage debt and for foreclosure.  While the foreclosure action is pending,  or
after final judgment for the plaintiff therein, no other action may be commenced
or  maintained  to recover any part of the mortgage  debt  without  leave of the
court in which the  foreclosure  action was brought.  A  deficiency  judgment is
limited to an amount equal to the  judgment  amount in the  foreclosure  action,
less (i) the fair and  reasonable  market value of the mortgaged  property as of
the date of the  foreclosure  sale or such  nearest  earlier date as there shall
have been any market value  thereof as  determined by the court or (ii) the sale
price of the property at the foreclosure sale, whichever shall be the higher.

     Section 254-b of the New York Real Property Law also places a limitation on
the mortgagee with respect to late payment charges.  Where the mortgage contains
a provision  giving the mortgagee the right to collect a late payment  charge on
any installment  that has become due and remains  unpaid,  such charge cannot be
more  than  2% of the  delinquent  installment  and  cannot  be  imposed  on any
installment  paid  within 15 days of the due date.  In  addition,  late  payment
charges cannot be deducted from the regular installment  payments;  they must be
separately charged and collected by the mortgagee.

     In New York the mortgagee of a loan on a residential leasehold property can
foreclose  such  mortgage by  maintaining a  traditional  equitable  foreclosure
action.  Any  rent or  taxes  paid by the  mortgagee  following  default  by the
mortgagor  may be  added  to  the  unpaid  balance  of the  mortgage  debt  upon
foreclosure.  A judgment of  foreclosure of a leasehold,  however,  results in a
public auction only if the mortgage  expressly so provides,  whereas judgment of
foreclosure on a real property  mortgage would result in a public auction in all
cases.  In the absence of an express  provision,  in a leasehold  mortgage,  the
mortgagee can only recover a money  judgment.  In this event,  the mortgagee may
follow  traditional  enforcement  procedures.  In  addition  to  enforcement  of
judgment remedies, the leasehold interest may then be subject to a post-judgment
sale pursuant to an execution.

     For Mortgage Loans Secured by Property in New Jersey.  Under New Jersey law
(N.J.S.A.  2A:50-1 et seq.) an action for deficiency  judgment must be commenced
within  three  months  from  the  date of the  foreclosure  sale of a  mortgaged
premises. In a deficiency action, judgment will be rendered only for the balance
due on the debt and interest and costs of the action. The obligor under the note
may file an answer in the action  for  deficiency,  disputing  the amount of the
deficiency  sued for. The court will  determine the amount of the  deficiency by
deducting  from the debt the amount  determined  as the fair market value of the
premises.

     In  New  Jersey,  the  commencement  of a  deficiency  action  reopens  the
mortgagor's  right of  redemption  for a period of six months after the entry of
any  deficiency  judgment,  which could have an adverse effect on the ability to
transfer good title to the mortgaged premises during this period.

     For Mortgage  Loans  Secured by Property in  Connecticut.  If the mortgagee
took title to the mortgaged  property under strict foreclosure but the mortgaged
property had value lower than the debt, Connecticut law permits the mortgagee to
move for a deficiency  judgment in the amount of the  difference  within 30 days
after the redemption  period has expired.  If there was  foreclosure by sale and
the proceeds of sale were  insufficient  to discharge the mortgage debt in full,
the mortgagee may obtain a deficiency judgment for the difference.  If, however,
the sales price is less than the value of the mortgaged property as found by the
court, one half of the difference between such value and the sales price must be
credited  against the deficiency  claim of the person who sought  foreclosure by
sale.

     For  Mortgage  Loans  Secured  by  Property  in  California.  The  rule  in
California  commonly known as the "one-action  rule" provides that a lender must
include all claims in one action and must foreclose its security  before seeking
to impose any personal liability.  The anti-deficiency  rules limit the recovery
of personal  judgments.  If a  foreclosure  is conducted by way of a nonjudicial
foreclosure  sale,  California  law  prohibits  the  recovery  of  a  deficiency
judgment.  In addition,  a deficiency  judgment is  prohibited  even if judicial
foreclosure is pursued when a lender  finances the purchase price of residential
real  property  and the  property has four or fewer units and is occupied by the
purchaser.  Because  most  mortgage  loans fall into this  category,  the Issuer
intends  to pursue  nonjudicial  foreclosure.  While it is  possible  to sue the
borrower for any fraud or waste, it generally is not practical to do so.

     For Mortgage Loans Secured by Property in Texas. In Texas most foreclosures
are  non-judicial.  However,  it is  necessary  to give both notice of intent to
accelerate  as well as notice of  acceleration  of the  installment  note unless
proper waiver  language is included in the note. If the real property is used as
the  debtor's  residence,  the debtor must be given at least 20 days to cure the
default before the entire debt is due and notice of sale is given.  Any suit for
a  deficiency  judgment  must be  brought  within  two  years  after the date of
foreclosure.  During  the  pendency  of such  suit,  the debtor has the right to
request the court to determine the fair market value of the property  foreclosed
upon.  In the event  the  court  determines  that the fair  market  value of the
property  is  greater  than the bid price  paid at  foreclosure,  the  debtor is
entitled to an offset  against the  deficiency  claim in the amount by which the
fair market value exceeds the bid price.

                                      A-26
<PAGE>

     For Mortgage  Loans  Secured by Property in Illinois.  In Illinois,  if the
price at the foreclosure  sale is less than the total amount  adjudicated due in
the judgment of foreclosure plus statutory interest,  certain advances and costs
incurred at the time of  judicial  sale,  the  mortgagee  may obtain  deficiency
judgment against the mortgagor provided that there is personal jurisdiction over
the mortgagor.

     For Mortgage  Loans  Secured by Property in Florida.  Under Florida law, if
the fair market value of the mortgaged  property at the time of the  foreclosure
sale is less  than the debt of the final  judgement,  the  mortgagee  may seek a
deficiency  judgment,  either as part of the foreclosure action or in a separate
action on the note. The decision  whether to grant a deficiency  judgment sought
as part of the foreclosure  action lies within the sound judicial  discretion of
the court but is subject to any equitable defenses by the borrower.  No award of
a deficiency  judgment  can be made,  either as part of or  separately  from the
foreclosure  action,  unless  the  court  has  personal  jurisdiction  over  the
defendant.  A request for a deficiency judgment is subject to dismissal for lack
of prosecution  if the deficiency  relief is not sought within one year from the
foreclosure sale date.

     For Cooperative Loans. Generally,  Article 9 of the UCC governs foreclosure
on cooperative shares and the related  proprietary lease or occupancy  agreement
in New York or New Jersey. 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.

     Section  254-b of the New York Real  Property  Law relating to late payment
charges,  as discussed  above,  also applies to a note  evidencing a cooperative
loan.

     For all  Mortgage  Loans.  In  addition  to laws  limiting  or  prohibiting
deficiency judgments, numerous other statutory provisions, including the federal
bankruptcy laws 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,  numerous  statutory  provisions under the United States
Bankruptcy  Code, 11 U.S.C.  Sections 101 et seq., (the  "Bankruptcy  Code") may
interfere  with or affect the  ability of the  Servicer  to obtain  payment of a
Mortgage  Loan,  to  realize  upon  collateral  and/or to  enforce a  deficiency
judgment.  For example,  under  federal  bankruptcy  law,  virtually all actions
(including   foreclosure  actions  and  deficiency  judgment   proceedings)  are
automatically  stayed  upon the filing of a  bankruptcy  petition,  and often no
interest or  principal  payments  are made  during the course of the  bankruptcy
proceeding.  In a case under the Bankruptcy Code, the secured party is precluded
from foreclosing without authorization from the bankruptcy court. In addition, a
court with federal  bankruptcy  jurisdiction  may permit a debtor through his or
her  Chapter 11 or  Chapter  13 plan to cure a monetary  default in respect of a
Mortgage  Loan  by  paying  arrearages  within  a  reasonable  time  period  and
reinstating the original  mortgage loan payment  schedule even though the lender
accelerated the mortgage loan and final judgment of foreclosure had been entered
in state court  (provided no  foreclosure  sale had yet  occurred)  prior to the
filing  of  the  debtor's   petition.   Some  courts  with  federal   bankruptcy
jurisdiction  have approved  plans,  based on the particular  facts of the case,
that effected the curing of a mortgage loan default by paying  arrearages over a
number of years.

     If a Mortgage  Loan is secured by  property  not  consisting  solely of the
debtor's  principal  residence,  the Bankruptcy  Code also permits such Mortgage
Loan to be modified.  Such modifications may include reducing the amount of each
monthly payment, changing the rate of interest, altering the repayment schedule,
and reducing the lender's security  interest to the value of the property,  thus
leaving  the lender in the  position  of a general  unsecured  creditor  for the
difference between the value of the property and the outstanding  balance of the
Mortgage Loan. Some courts have permitted such  modifications  when the Mortgage
Loan is  secured  both  by the  debtor's  principal  residence  and by  personal
property.

     If a court relieves a borrower's  obligation to repay amounts otherwise due
on a Mortgage  Loan,  the Servicer will not be required to advance such amounts,
and any loss in respect thereof will be borne by the Certificateholders.

     The IRS Code  provides  priority  to certain tax liens over the lien of the
mortgage or deed of trust.  The laws of some states provide  priority to certain
tax liens over the lien of the mortgage or deed of trust.  Numerous  federal and
some  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 Debt Collection  Practices Act, Fair Credit Reporting Act, and
related  statutes  and  regulations.  These  federal  laws and state laws impose
specific  statutory  liabilities  upon lenders who originate or service mortgage
loans and who fail to comply with the provisions of the law. In some cases, this
liability may affect assignees of the mortgage loans.

                                      A-27
<PAGE>

  Enforceability of Certain Provisions, Prepayment Charges and Prepayments

     Unless  the  Prospectus  Supplement  indicates  otherwise,  Mortgage  Loans
representing  at least 90% of the  aggregate  Adjusted  Balance of the  Mortgage
Loans in a Fixed Rate Pool will contain due-on-sale clauses.  Generally, ARMs in
an ARM Pool  will  contain  due-on-sale  clauses  permitting  the  mortgagee  to
accelerate only in situations where its security may be impaired.  These clauses
permit the lender to accelerate the maturity of the loan if the borrower  sells,
transfers  or  conveys  the  property  or,  in the  case  of a land  trust,  the
beneficial interest therein is transferred.  The enforceability of these clauses
has been  impaired in various  ways in certain  states by statute or  decisional
law. The ability of mortgage  lenders and their  assignees  and  transferees  to
enforce  due-on-sale  clauses was  addressed by the Garn-St  Germain  Depository
Institutions  Act of 1982 (the  "Garn-St  Germain  Act")  which was  enacted  on
October 15, 1982.  This  legislation,  subject to certain  exceptions,  preempts
state  constitutional,  statutory and case law that prohibits the enforcement of
due-on-sale   clauses.   Exempted  from  this   preemption  are  mortgage  loans
(originated  other than by federal  savings  and loan  associations  and federal
savings banks) that were made or assumed during the period beginning on the date
certain states  ("Window  Period  States"),  by statute or final appellate court
decision having statewide effect, prohibited the exercise of due-on-sale clauses
and ending on October 15, 1982  ("Window  Period  Loans").  Due-on-sale  clauses
contained in mortgage loans originated by federal savings and loan  associations
or federal  savings banks are fully  enforceable  pursuant to regulations of the
Federal Home Loan Bank Board (now OTS) which preempt state law  restrictions  on
the  enforcement  of  due-on-sale  clauses.  Mortgage  loans  originated by such
institutions are therefore not deemed to be Window Period Loans.

     Though neither the Garn-St Germain Act nor the Federal Home Loan Bank Board
regulations  promulgated  thereunder  actually  names the Window Period  States,
FHLMC has taken the position,  in prescribing  mortgage loan servicing standards
with respect to mortgage  loans which it has  purchased,  that the Window Period
States are: Arizona,  Arkansas,  California,  Colorado,  Florida, Georgia, Iowa,
Michigan,  Minnesota, New Mexico, Utah and Washington.  In regulations issued on
November  8, 1983,  the  Comptroller  of the  Currency  indicated  that  certain
mortgage loans which were originated by national banks prior to October 15, 1982
and which were  secured by  property  located  in the states  listed  above were
Window Period Loans.  These  regulations  limit the  applicability  of state law
restrictions  on the  enforcement of due-on-sale  clauses with respect to Window
Period  Loans   originated  by  national   banks.   The  National  Credit  Union
Administration  issued final  regulations  on December 3, 1982,  providing  that
due-on-sale  clauses  contained  in Window  Period Loans  originated  by federal
credit unions are fully  enforceable,  notwithstanding  state law  restrictions.
Under the  Garn-St  Germain  Act,  unless a Window  Period  State took action by
October 15, 1985, the end of the Window Period, to further regulate  enforcement
of due-on-sale  clauses,  such clauses would become  enforceable  even in Window
Period Loans. Four of the Window Period States (Minnesota,  Michigan, New Mexico
and Utah) have taken actions which  restrict the  enforceability  of due-on-sale
clauses in Window Period Loans beyond  October 15, 1985.  The actions taken vary
among  such  states.  The  Garn-St  Germain  Act also set  forth  nine  specific
instances  in which no mortgage  lender  covered by the Garn-St  Germain Act may
exercise a due-on-sale  clause,  notwithstanding the fact that a transfer of the
property may have  occurred.  The inability to enforce a due-on-sale  clause may
result in a Mortgage Loan bearing an interest rate below the current market rate
being assumed by a new home buyer rather than being paid off,  which may have an
impact upon the average life of the Mortgage  Loans  underlying a Series and the
number of such Mortgage  Loans which may be  outstanding  until  maturity.  Upon
foreclosure,  courts have imposed general  equitable  principles.  The equitable
principles are generally  designed to relieve the borrower from the legal effect
of his defaults  under the loan  documents.  Examples of judicial  remedies that
have been fashioned  include  judicial  requirements  that the lender  undertake
affirmative  and expensive  actions to determine  the causes for the  borrower's
default and the likelihood that the borrower will be able to reinstate the loan.
In some cases,  courts have substituted their judgment for the lender's judgment
and have required that lenders  reinstate  loans or recast payment  schedules in
order to  accommodate  borrowers  who are  suffering  from  temporary  financial
disability.  In other  cases,  courts  have  limited  the  right of a lender  to
foreclose if the default under the mortgage instrument is not monetary,  such as
the  borrower's  failure to adequately  maintain the property or the  borrower's
execution of a second mortgage or deed of trust affecting the property. Finally,
some  courts  have  been  faced  with the  issue  of  whether  federal  or state
constitutional  provisions  reflecting due process  concerns for adequate notice
require  that  borrowers  under deeds of trust or mortgages  receive  notices in
addition to the statutorily  prescribed minimums. 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,  or under a mortgage  having a power of
sale,  does  not  involve  sufficient  state  action  to  afford  constitutional
protections to the borrower.

                                      A-28
<PAGE>

     All conventional single-family Mortgage Loans originated by Citibank may be
prepaid in full or in part at any time, without penalty.

     New Jersey  statutes  (N.J.S.A.  46:10B-2,3)  provide  that most New Jersey
residential  mortgage loans may be prepaid in full at any time without  penalty,
and that partial  prepayments  may be made in an amount not exceeding  331/3% of
the face amount of the mortgage loan in any six-month period without penalty.

     California law regarding  prepayment  penalties is very complex.  Whether a
lender can  enforce a  prepayment  penalty  depends in the first  instance  upon
whether the  documents  give the  borrower the right to prepay or the lender the
right to charge a prepayment penalty. Other considerations are the date the loan
was originated,  the amount of the loan,  whether the loan was a fixed rate or a
variable rate loan, the kind of property securing the loan and when the borrower
wishes  to make the  prepayment.  Federal  savings  and loan law  prohibits  the
imposition of prepayment  penalties upon the exercise of a due-on-sale clause or
the  failure  to  approve  an  assumption  by a  qualified  transferee  and  the
subsequent  transfer by the  borrower of the  property  to that  transferee  and
prepayment of the loan in full.

     Beginning on January 15, 1991, CFSB's California  branches'  standard forms
for 15-year fixed rate  tiered-payment  Mortgage Loans provide for a penalty for
full or partial  prepayment  of up to six months'  interest  during the first 12
months following origination.

     In  Illinois,  whenever  the annual rate of interest  exceeds 8% for a loan
secured by residential  real estate,  it is unlawful to provide for a prepayment
penalty.

     Most  conventional  single-family  mortgage loans originated by the Florida
branches  of  CFSB  may be  prepaid  in full or in  part  without  penalty.  The
regulations  of the Federal Home Loan Bank Board  prohibit the  imposition  of a
prepayment  penalty or equivalent fee for or in connection with the acceleration
of a loan by exercise of a due-on-sale  clause. A mortgagee to whom a prepayment
in full has been  tendered  may be  compelled  to give  either a release  of the
mortgage or an  instrument  assigning  the  existing  mortgage to a  refinancing
lender.

     Under New York law,  a  prepayment  penalty  may not be charged on any loan
secured by a one- to six-family  residence occupied by the owner or certificates
of stock in a  cooperative  corporation,  where the interest rate exceeds 6% per
annum, if prepayment is made on or after one year from the making of the loan.

  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. A similar  federal  statute
was in effect with respect to mortgage  loans made during the first three months
of 1980.  The OTS 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.

     The Issuer has been  advised by counsel that a court  interpreting  Title V
would  hold that  Mortgage  Loans  related  to a Series  originated  on or after
January 1, 1980 are subject to federal  preemption.  Therefore,  in a state that
has not taken the requisite action to reject  application of Title V or to adopt
a provision  limiting  discount  points or other charges prior to origination of
such Mortgage Loans,  any such limitation under such state's usury law would not
apply to such Mortgage Loans.

     In any state in which application of Title V has been expressly rejected or
a provision  limiting  discount points or other charges is adopted,  no Mortgage
Loans related to a Series originated after the date of such state action will be
eligible for inclusion in a Pool if such mortgage loans bear interest or provide
for discount points or charges in excess of permitted  levels.  No mortgage loan
related to a Series  originated  prior to January 1, 1980 will bear  interest or
provide for discount points or charges in excess of permitted levels.

  Adjustable Interest Rate Mortgage Loans

     Adjustable   interest  rate  mortgage  loans  originated  by  non-federally
chartered  lenders have  historically been subject to a variety of restrictions.
Such  restrictions  differed from state to state,  resulting in  difficulties in
determining whether a particular alternative mortgage instrument originated by a
state-chartered  lender complied with applicable  law. These  difficulties  were
alleviated  substantially  as a result  of the  enactment  of Title  VIII of the
Garn-St  Germain 


                                      A-29
<PAGE>

Act ("Title VIII").  Title VIII provides that,  notwithstanding any state law to
the  contrary,   state-chartered  banks  may  originate   "alternative  mortgage
instruments"  (including  adjustable  rate mortgage  loans) in  accordance  with
regulations  promulgated  by the  Comptroller  of the  Currency  with respect to
origination   of   alternative   mortgage   instruments   by   national   banks;
state-chartered  credit unions may originate alternative mortgage instruments in
accordance   with   regulations   promulgated  by  the  National   Credit  Union
Administration with respect to origination of alternative  mortgage  instruments
by  federal  credit  unions  and  all  other  non-federally   chartered  housing
creditors,   including  state-chartered  savings  and  loan  associations;   and
state-chartered  savings  banks and mortgage  banking  companies  may  originate
alternative mortgage instruments in accordance with the regulations  promulgated
by the Federal  Home Loan Bank Board (now OTS) with  respect to  origination  of
alternative mortgage instruments by federal savings and loan associations. Title
VIII provides that any state may reject applicability of the provisions of Title
VIII by adopting,  prior to October 15, 1985, a law or constitutional  provision
expressly  rejecting the  applicability of such provisions.  Certain states have
taken such action.

     The Issuer has been advised by its counsel that it is their  opinion that a
court interpreting Title VIII would hold that adjustable  interest rate mortgage
loans  which  were  originated  by  state-chartered  lenders  before the date of
enactment of any state law or constitutional  provision rejecting  applicability
of Title  VIII  would not be subject  to state  laws  imposing  restrictions  or
prohibitions on the ability of state-chartered  lenders to originate alternative
mortgage instruments.

     All of the ARMs which were originated by a state-chartered lender after the
enactment of a state law or constitutional provision rejecting the applicability
of Title VIII  complied  with  applicable  state law. All of the ARMs which were
originated  by  federally   chartered   lenders  or  which  were  originated  by
state-chartered  lenders  prior to  enactment  of a state law or  constitutional
provision   rejecting  the  applicability  of  Title  VIII  were  originated  in
compliance with all applicable federal regulations.

ENVIRONMENTAL CONSIDERATIONS

     A lender may be subject to  unforeseen  environmental  risks when  taking a
security  interest  in real or  personal  property.  Property  subject to such a
security  interest  may be  subject  to  federal,  state,  and  local  laws  and
regulations relating to environmental protection.  Such laws may regulate, among
other  things:  emissions of air  pollutants;  discharges of wastewater or storm
water;  generation,  transport,  storage  or  disposal  of  hazardous  waste  or
hazardous  substances;  operation,  closure and removal of  underground  storage
tanks;  removal and disposal of  asbestos-containing  materials;  management  of
electrical or other equipment  containing  polychlorinated  biphenyls  ("PCBs").
Failure  to comply  with such laws and  regulations  may  result in  significant
penalties, including civil and criminal fines.

     Under the laws of certain states, environmental contamination on a property
may give  rise to a lien on the  property  to  ensure  the  availability  and/or
reimbursement of cleanup costs. Generally, all subsequent liens on such property
are  subordinated to such a lien and, in some states,  even prior recorded liens
are  subordinated  to such  liens  ("Superliens").  In the  latter  states,  the
security  interest  of the  Trustee  in a  property  that is  subject  to such a
Superlien could be adversely affected.

     Under the federal Comprehensive  Environmental  Response,  Compensation and
Liability Act, as amended  ("CERCLA"),  and under state law in certain states, a
secured party which takes a deed in lieu of  foreclosure,  purchases a mortgaged
property at a  foreclosure  sale,  operates a mortgaged  property or  undertakes
certain types of activities that may constitute "management" of the property may
become  liable  in  certain  circumstances  for the  costs  of  remedial  action
("Cleanup Costs") if hazardous wastes or hazardous substances have been released
or disposed of on the property.  Such Cleanup Costs may be substantial and could
exceed  the  value of the  property  and the  aggregate  assets  of the owner or
operator.  CERCLA imposes  strict,  as well as joint and several,  liability for
environmental remediation and/or damage costs on several classes of "potentially
responsible  parties,"  including current "owners and/or operators" of property,
irrespective  of whether  those owners or  operators  caused or  contributed  to
contamination on the property.  In addition,  owners and operators of properties
that  generate  hazardous  substances  that are disposed of at other  "off-site"
locations may be held strictly,  jointly and severally liable for  environmental
remediation  and/or damages at those off-site  locations.  Many states also have
laws that are similar to CERCLA.  Liability  under CERCLA or under similar state
law could  exceed  the  value of the  property  itself as well as the  aggregate
assets of the property owner.

     The law is  unclear  as to whether  and under  what  precise  circumstances
Cleanup Costs, or the obligation to take remedial actions, could be imposed on a
secured  lender  such as the  Trust.  Under  the laws of some  states  and under

                                      A-30
<PAGE>

CERCLA, a lender may be liable as an "owner or operator" for costs of addressing
releases or threatened releases of hazardous  substances on a mortgaged property
if such lender or its agents or employees have  "participated in the management"
of the  operations  of the  borrower,  even though the  environmental  damage or
threat was caused by a prior  owner or current  owner or operator or other third
party.  Excluded  from  CERCLA's  definition of "owner or operator," is a person
"who without  participating  in the  management of . . . [the]  facility,  holds
indicia  of  ownership   primarily  to  protect  his  security   interest"  (the
"secured-creditor exemption"). This exemption for holders of a security interest
such as a secured  lender  applies  only to the extent that the lender  seeks to
protect its security interest in the contaminated facility or property. Thus, if
a  lender's  activities  begin to  encroach  on the  actual  management  of such
facility or  property,  the lender  faces  potential  liability  as an "owner or
operator" under CERCLA. Similarly, when a lender forecloses and takes title to a
contaminated  facility  or  property,  the  lender  may incur  potential  CERCLA
liability in various  circumstances,  including among others,  when it holds the
facility  or  property  as an  investment  (including  leasing  the  facility or
property to a third party),  fails to market the property in a timely fashion or
fails to properly address environmental conditions at the property or facility.

     The Resource Conservation and Recovery Act, as amended ("RCRA"), contains a
similar  secured-creditor  exemption  for  those  lenders  who  hold a  security
interest  in  petroleum  underground  storage  tanks  ("USTs") or in real estate
containing  a UST,  or that  acquire  title to a  petroleum  UST or  facility or
property on which such a UST is located.  As under CERCLA, a lender may lose its
secured-creditor  exemption  and be held  liable  under  RCRA as a UST  owner or
operator if such lender or its employees or agents participate in the management
of the UST. And, if the lender takes title to or possession  the UST or the real
estate  containing the UST,  under certain  circumstances  the  secured-creditor
exemption may be deemed to be unavailable.

     Court   decisions   have   taken   varying   views  of  the  scope  of  the
secured-director exemption, leading to administrative and legislative efforts to
provide guidance to lenders on the scope of activities that would trigger CERCLA
and/or RCRA  liability.  Until  recently,  these  efforts have failed to provide
substantial guidance.

     On October 30, 1996,  however,  the President  signed into law  legislation
intended  to  clarify  the scope of the  secured-creditor  exemption  under both
CERCLA  and  RCRA.  This  legislation  more  explicitly  defined  the  kinds  of
"participation  in  management"  that would trigger  liability  under CERCLA and
specified  certain  activities  that  would  not  constitute  "participation  in
management"  or  otherwise  result  in  a  forfeiture  of  the  secured-creditor
exemption prior to foreclosure or during a workout period.  The legislation also
clarifies the extent of protection  against  liability under CERCLA in the event
of   foreclosure.   The   legislation   also   authorizes   certain   regulatory
clarifications  of the scope of the  secured-creditor  exemption for purposes of
RCRA,  similar to the statutory  protections  under CERCLA.  However,  since the
courts  have  not  yet had  the  opportunity  to  interpret  the  new  statutory
provisions,  the scope of the additional  protections  offered by the new law is
not fully defined.  It also is important to note that the new  legislation  does
not offer complete protection to lenders and that the risk of liability remains.

     If a secured  lender  does  become  liable,  it may be entitled to bring an
action  for  contribution   against  the  owner  or  operator  who  created  the
environmental  contamination or against some other liable party, but that person
or entity may be bankrupt or otherwise judgment-proof.  It is therefore possible
that cleanup or other environmental  liability costs could become a liability of
the Trust and occasion a loss to the Trust and to  Certificateholders in certain
circumstances.  The new secured  creditor  amendments  to CERCLA also affect the
potential  for  liability in actions by either a state or a private  party under
other federal or state laws which may impose  liability on "owners or operators"
but do not incorporate the secured-creditor exemption.

     Traditionally,  residential  mortgage  lenders  have  not  taken  steps  to
evaluate  whether  hazardous  wastes or  hazardous  substances  are present with
respect to any mortgaged  property prior to the origination of the mortgage loan
or prior to foreclosure or accepting a deed-in-lieu of foreclosure. Accordingly,
neither the Issuer nor any  Originator  has made such  evaluations  prior to the
origination  of the  Mortgage  Loans  nor  does the  Issuer  require  that  such
evaluations  be made by  originators  who have  sold the  Mortgage  Loans to it.
Neither  the  Issuer  nor  the  Servicer  is  required  to  undertake  any  such
evaluations prior to foreclosure or accepting a deed-in-lieu of foreclosure. The
Issuer does not make any  representations  or warranties or assume any liability
with respect to: the  environmental  condition of such property;  the absence or
presence of hazardous wastes or hazardous  substances on any Mortgaged Property;
any  casualty  resulting  from the  presence  or effect of  hazardous  wastes or
hazardous substances on, near or emanating from such property;  or the impact of
any  environmental  condition  or the  presence of any  substance on or near the
property on the prospective  performance of the Mortgage Loans or the compliance
of any Mortgaged Property with any environmental  laws, nor is any agent, person
or entity  otherwise  affiliated with the Issuer  authorized or able to make any
such  representation,  warranty  or  assumption  of  liability  relating  to any
Mortgaged Property.

                                      A-31
<PAGE>

                                                                      APPENDIX B

                             THE AGENCY CERTIFICATES

     This Appendix  describes  GNMA,  FHLMC,  FNMA,  their  respective  Mortgage
Certificates, the underlying mortgage loans and certain related matters.

GNMA

     The Government  National  Mortgage  Association  ("GNMA") is a wholly-owned
corporate  instrumentality of the United States within the Department of Housing
and Urban  Development.  Section 306(g) of Title III 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  ("GNMA  Certificates")
that are  based on and  backed  by,  and  represent  an  interest  in, a pool of
mortgage loans insured by the Federal Housing  Administration  ("FHA") under the
Housing Act ("FHA  Loans") or Title V of the Housing Act of 1949,  or  partially
guaranteed  by the  United  States  Veterans  Administration  ("VA")  under  the
Servicemen's  Readjustment  Act of 1944, as amended,  or Chapter 37 of Title 38,
United States Code, or by pools of other eligible mortgage 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 such guaranty, GNMA is authorized, under Section 306(d) of
the Housing Act, to borrow from the United States Treasury in an amount which is
at any time  sufficient to enable GNMA,  with no  limitations  as to amount,  to
perform its obligations under its guarantee.

GNMA CERTIFICATES

     All  of  the  GNMA  Certificates  will  be  "fully  modified  pass-through"
mortgage-backed  certificates issued and serviced by issuers approved by GNMA or
by FNMA as a seller-servicer  of FHA Loans or VA Loans or by both entities.  The
mortgage loans underlying GNMA  Certificates may consist of FHA Loans secured by
mortgages  on  one-to   four-family   residential   properties  or   multifamily
residential  properties,  mortgage  loans  partially  guaranteed  by the VA ("VA
Loans"),  and other  mortgage  loans  eligible for  inclusion in mortgage  pools
underlying  GNMA  Certificates   which  may  be  level  payment  mortgage  loans
(including  "buydown"  mortgage loans) or graduated  payment mortgage loans each
secured by a first lien on a one-to four-family residential property.

     Except  in the  case of  GNMA  Certificates  backed  by  graduated  payment
mortgage loans,  each GNMA Certificate  provides for the payment by or on behalf
of the  issuer of the GNMA  Certificate  to the  registered  holder of such GNMA
Certificate  of  monthly  payments  of  principal  and  interest  equal  to  the
registered  holder's  proportionate  interest  in the  aggregate  amount  of the
monthly scheduled  principal and interest  payments on each underlying  eligible
mortgage loan,  less servicing and guaranty fees  aggregating  the excess of the
interest on such eligible mortgage loans over the pass-through rate of such GNMA
Certificate.  In addition, each payment to a GNMA Certificateholder will include
proportionate  pass-through  payments  to  such  holder  of any  prepayments  of
principal of the mortgage loan underlying the GNMA Certificate, and the holder's
proportionate  interest  in the  remaining  principal  balance in the event of a
foreclosure or other disposition of any such mortgage loan.

     GNMA  Certificates  may be issued under either the GNMA I program  ("GNMA I
Certificates")  or the GNMA II program  ("GNMA II  Certificates").  Although the
holder of a GNMA  Certificate  has essentially the same rights with respect to a
GNMA Certificate issued under either program, a principal difference between the
two programs is that under the GNMA I program  payments will be made directly by
the issuer of the GNMA I Certificate to the registered  holder,  while under the
GNMA II program payments will be made to the registered  holder through Chemical
Bank as paying  agent.  A further  difference  between the two  programs is that
under the GNMA I program  single  issuer  approach,  an  individual  GNMA issuer
assembles  a pool of  mortgages  against  which it  issues  and  markets  GNMA I
Certificates,  while  under the GNMA II  program  multiple  issuer  pools may be
formed  through the  aggregation  of loan packages of more than one GNMA issuer.
Under this option,  packages  submitted by various GNMA issuers for a particular
issue date and  interest  rate are  aggregated  into a single pool which backs a
single issue of GNMA II Certificates. However, single issuer pools may be formed
under the GNMA II program as well.


                                      B-1
<PAGE>


     If  specified  in the  related  Prospectus  Supplement,  GNMA  Certificates
included in the Pool for a Series of CitiCertificates  may be held on deposit at
the Participants  Trust Company ("PTC"), a limited trust company organized under
the  banking  laws of the  State of New York.  PTC  operates  a private  sector,
industry owned  depository and  settlement  facility for book-entry  transfer of
interests  in GMNA  Certificates.  Distribution  of principal of and interest on
such  GNMA  Certificate  held  through  PTC will be  credited  by PTC to the PTC
participant to whose account the GNMA Certificate is credited.

     All mortgage loans underlying a particular GNMA I Certificate must have the
same  annual  interest  rate  (except for pools of  mortgages  secured by mobile
homes).  The annual  interest rate on each GNMA I Certificate is 50 basis points
less than the annual interest rate on the mortgage loans included in the pool of
mortgages backing such GNMA I Certificate.

     Mortgages  underlying  a  particular  GNMA II  Certificate  may have annual
interest  rates that vary from each other by up to 100 basis points.  The annual
interest  rate on each GNMA II  Certificate  will be between 50 basis points and
150 basis  points per annum less than the highest  annual  interest  rate on the
mortgage  loans  included  in  the  pool  of  mortgages  backing  such  GNMA  II
Certificate.

     All of  the  GNMA  Certificates  included  in  the  Pool  for a  Series  of
Certificates  will have  original  maturities of not more than 30 years (but may
have original maturities of substantially less than 30 years). In general,  GNMA
requires that at least 90% of the original principal amount of the mortgage pool
underlying a GNMA Certificate must be mortgage loans with maturities of 20 years
or more.  However,  in certain  circumstances GNMA Certificates may be backed by
pools of mortgage loans at least 90% of the original  principal  amount of which
have original maturities of at least 15 years.

     Each mortgage loan underlying a GNMA  Certificate,  at the time GNMA issues
its  guarantee  commitment,  must be  originated no more than 12 months prior to
such commitment date.

     The GNMA  Certificates  do not  constitute a liability  of, or evidence any
recourse against, the issuer of the GNMA Certificates, the issuer of a Series of
CitiCertificates  or  any  affiliates  thereof,  and  the  only  recourse  of  a
registered holder of GNMA Certificates,  such as the Trustee,  is to enforce the
guaranty of GNMA.

     GNMA will  have  approved  the  issuance  of each of the GNMA  Certificates
included  in the Pool for a Series  of  CitiCertificates  in  accordance  with a
guaranty  agreement  between  GNMA  and  the  servicer  of  the  mortgage  loans
underlying such GNMA Certificate,  which is the issuer of the GNMA Certificates.
Pursuant to such agreement,  such issuer is required to advance its own funds in
order to make timely payments of all amounts due on the GNMA  Certificate,  even
if the payments  received by such issuer on the mortgage  loans backing the GNMA
Certificate  are less than the  amounts  due on such GNMA  Certificate.  If such
issuer is unable to make  payments on a GNMA  Certificate  as it becomes due, it
must  promptly  notify GNMA and  request  GNMA to make such  payment.  Upon such
notification  and  request,  GNMA  will  make  such  payments  directly  to  the
registered  holder of the GNMA  Certificate.  In the event no payment is made by
such  issuer  and such  issuer  fails to notify  and  request  GNMA to make such
payment, the registered holder of the GNMA Certificate has recourse only against
GNMA to obtain such payment. The Trustee or its nominee, as registered holder of
the GNMA Certificates included in the Pool for a Series of CitiCertificates,  is
entitled  to  proceed  directly  against  GNMA  under the terms of the  guaranty
agreement or contract  relating to such GNMA  Certificates  for any amounts that
are not paid when due under each GNMA Certificate.

     The GNMA Certificates included in the Pool for a Series of CitiCertificates
may have other characteristics and terms,  different from those described above,
so long as such  GNMA  Certificates  and  underlying  mortgage  loans  meet  the
criteria of the rating agency or agencies  rating the  CitiCertificates  of such
Series.  Such GNMA Certificates and underlying  mortgage loans will be described
in the related Prospectus Supplement.

FHLMC

     The  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"). FHLMC's common
stock is owned by 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 


                                      B-2
<PAGE>

of the  purchase  of  first  lien  conventional  residential  mortgage  loans or
participation  interests in such  mortgage  loans and the resale of the mortgage
loans so  purchased  in the form of  mortgage  securities.  All  mortgage  loans
purchased by FHLMC must meet certain standards set forth in the FHLMC Act. FHLMC
is confined to purchasing,  so far as practicable,  conventional  mortgage loans
and participation  interests therein which it deems to be of such quality,  type
and  class  that  generally  meet the  purchase  standards  imposed  by  private
institutional mortgage investors.

FHLMC CERTIFICATES

     Each FHLMC  Certificate  represents  an  undivided  interest  in a group of
mortgages ("FHLMC Certificate Group").

     Mortgage loans underlying the FHLMC Certificates included in the Pool for a
Series of  CitiCertificates  will  consist  of fixed  rate  mortgage  loans with
original  terms to maturity of between 10 and 30 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.

     With respect to certain FHLMC  Certificates  ("Original  PCs"),  the period
between  the first day of the month in which the  Certificate  is issued and the
initial  payment date in respect of the  Certificate is  approximately  75 days.
With respect to other FHLMC  Certificates  ("Gold PCs"),  the period between the
first day of the  month in which  the  Certificate  is  issued  and the  initial
payment date in respect of the Certificate is approximately 45 days. In addition
to the shorter  payment  delay,  Gold PCs differ from  Original  PCs in that the
record date for payments of principal  and interest on a Gold PC is the last day
of the month  immediately  preceding the month in which the related payment date
occurs,  whereas the record date for  payments of  principal  and interest on an
Original PC is the last day of the second month preceding the month in which the
payment date occurs.

     FHLMC  guarantees  to each  registered  holder of a FHLMC  Certificate  the
timely payment of interest at the rate provided for by such FHLMC Certificate on
the  registered  holder's  pro  rata  share  of  the  unpaid  principal  balance
outstanding on the related mortgage loans,  whether or not received.  FHLMC also
guarantees  to each  registered  holder  of a  FHLMC  Certificate  the  ultimate
collection  by such  holder of all  principal  on the  related  mortgage  loans,
without any offset or  deduction,  to the extent of such holder's pro rata share
thereof,  but does not,  except with respect to Gold PCs or if and to the extent
specified in the Prospectus  Supplement relating to a Series of CitiCertificates
secured by Original PCs,  guarantee the timely  payment of scheduled  principal.
Pursuant to its  guarantees,  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
guarantee 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  servicing  judgment  with respect to the mortgages in
the same manner as for mortgages which it has purchased but not sold.

     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
guarantee  are  obligations  solely of FHLMC and are not backed by, nor entitled
to, the full faith and credit of the United States.

     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  payments of  principal,  and  principal  received by FHLMC by virtue of
condemnation,  insurance or  foreclosure,  and  repurchases  of the mortgages by
FHLMC  or the  sellers  of the  mortgages.  FHLMC is  required  to remit to each
registered FHLMC  Certificateholder  its pro rata share of principal payments on
the underlying  mortgage loans,  interest at the FHLMC  Certificate 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,  prior to June 1987 there was no limitation on
the amount by which  interest  rates on the  mortgage  loans  underlying a FHLMC
Certificate  may exceed the interest rate on the FHLMC  Certificate.  


                                      B-3
<PAGE>

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  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
of the mortgage loans, an assumed term and a prepayment  period as determined by
FHLMC.  No loan is purchased  by FHLMC at greater  than 100% of the  outstanding
principal balance.  The range of interest rates on the mortgage loans in a FHLMC
Certificate  Group under the Cash  Program  formed  prior to June 1987 will vary
since  mortgage  loans are purchased and assigned to a FHLMC  Certificate  Group
based upon their yield to FHLMC rather than on the interest rate on the mortgage
loans.  Since June 1987,  the range of interest  rates on the mortgage loans and
participations  in a FHLMC  Certificate  Group comprised of 15-and 30-year fixed
rate single  family  mortgage  loans  bought by FHLMC under the Cash  Program is
restricted to one percentage point.  Moreover, the lowest coupon on any mortgage
loan in the  FHLMC  Certificate  Group is  greater  than or equal to the  annual
pass-through  rate on the related FHLMC  Certificate,  and the highest  mortgage
interest  rate is not more than two  percentage  points above such  pass-through
rate. Under FHLMC's Guarantor Program,  the annual  pass-through rate on a FHLMC
Certificate is 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 guarantee income as agreed upon between the seller and FHLMC. For
certain FHLMC  Certificate  Groups  formed under the Guarantor  Program prior to
December 1987, the range between the lowest and highest annual interest rates on
the mortgage  loans in a FHLMC  Certificate  Group may not exceed two percentage
points;  beginning in December  1987,  such range may not exceed one  percentage
point.

     FHLMC Certificates duly presented for registration of transfer on or before
the last business day of a month are registered effective as of the first day of
that  month.  The  first  remittance  check to a  registered  holder  of a FHLMC
Certificate will be mailed 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 the FHLMC Certificate. Thereafter checks will be mailed 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 interest and principal each month to the registered  holders thereof
in accordance with such holders' instructions.

     See  "Additional  Information"  in the  body  of  the  Prospectus  for  the
availability of further information respecting FHLMC and FHLMC Certificates.

     The   FHLMC   Certificates   included   in  the  Pool   for  a  Series   of
CitiCertificates may have other characteristics and terms,  different from those
described  above,  so long as such FHLMC  Certificates  and underlying  mortgage
loans  meet  the  criteria  of  the  rating   agency  or  agencies   rating  the
CitiCertificates of such Series. Such FHLMC Certificates and underlying mortgage
loans will be described in the related Prospectus Supplement.

FNMA

     FNMA is a federally chartered and privately owned corporation organized and
existing under the Federal National Mortgage Association Charter Act, as amended
(the "Charter Act"). 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  home
mortgage  loans from lenders,  thereby  replenishing  their funds for additional
lending.  FNMA  acquires  funds to  purchase  loans  from  many  capital  market
investors that may not ordinarily  invest in mortgage loans,  thereby  expanding
the total amount of funds  available  for housing and, by operating  nationwide,
FNMA helps to redistribute  mortgage funds from capital-surplus to capital-short
areas. In addition, FNMA issues mortgage-backed securities primarily in exchange
for pools of mortgage loans from lenders.

     Although  the   Secretary  of  the  Treasury  of  the  United   States  has
discretionary  authority  to advance  funds to FNMA,  neither the United  States
government  nor any agency or  instrumentality  thereof is  obligated  to assume
FNMA's obligations or assist FNMA in any manner.

FNMA CERTIFICATES

     FNMA Certificates  represent  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


                                      B-4
<PAGE>

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  included in the Pool for a
Series of  CitiCertificates  will consist of conventional  mortgage  loans,  FHA
Loans  or VA  Loans.  The  original  maturities  of  substantially  all  of  the
conventional,  level payment  mortgage loans  underlying a FNMA  Certificate are
expected to be between  either 8 and 15 years or 20 and 30 years.  The  original
maturities of  substantially  all of the 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 other  servicer
assumes the entire risk of foreclosure losses), the annual interest rates on the
mortgage loan underlying a FNMA  Certificate will be between 50 basis points and
250  basis  points   greater  than  the  annual   interest  rate  for  the  FNMA
Certificates;  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
interest rate.

     FNMA guarantees to each  registered  holder of a FNMA  Certificate  that it
will distribute amounts  representing  scheduled  principal and interest (at the
rate provided for by such FNMA  Certificate)  on the mortgage  loans in the pool
represented  by such FNMA  Certificate,  whether or not  received,  and 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 guarantees are obligations  solely of FNMA and are not backed by,
nor  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 mortgage loans and, accordingly,  monthly
distributions  to holders of FNMA  Certificates  would be affected by delinquent
payments and defaults on such mortgage loans.

     Unless  otherwise  specified  in the  Prospectus  Supplement  relating to a
Series of CitiCertificates,  FNMA Certificates  evidencing interests in pools of
mortgage  loans formed on or after May 1, 1985 are available in book-entry  form
only and will not be convertible to definitive form.  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 on the
books of the  Federal  Reserve  Bank  (or  registered  in 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.

     See  "Additional  Information"  in the  body  of  the  Prospectus  for  the
availability of further information respecting FNMA and FNMA Certificates.

     The FNMA Certificates included in the Pool for a Series of CitiCertificates
may have other characteristics and terms,  different from those described above,
so long as such  FNMA  Certificates  and  underlying  mortgage  loans  meet  the
criteria of the rating agency or agencies  rating the  CitiCertificates  of such
Series.  Such FNMA Certificates and underlying  mortgage loans will be described
in the related Prospectus Supplement.

                                      B-5
<PAGE>

                         INDEX OF PRINCIPAL DEFINITIONS

TERM                                                                       PAGE
- ----                                                                       ----
Accrual CitiCertificates ..................................................    1
Acquisition Premium .......................................................   44
Adjusted Balance ..........................................................  A-2
Affiliated Mortgage Loans .................................................   13
Affiliated Originators ....................................................    1
Alternative Certificate Account ........................................... A-11
Amount Available ..........................................................   10
ARM Pool ..................................................................  A-1
ARMs ......................................................................  A-5
BIF .......................................................................   19
Bankruptcy Code ........................................................... A-27
Buydown Mortgage Loans ....................................................   15
CERCLA .................................................................... A-30
Certificate Account .......................................................   19
Certificate Account Advance ............................................... A-13
Certificate Distribution Amount ...........................................    6
Certificateholders ........................................................    2
Certificates ..............................................................    1
CFSB ......................................................................    1
CFSB Pool .................................................................  A-1
Charter Act ...............................................................  B-4
Citibank ..................................................................    1
Citibank Pool .............................................................  A-1
CitiCertificates ..........................................................    1
Citicorp ..................................................................   31
CitiMae ...................................................................    1
CitiMae Mortgage Loans ....................................................   13
CitiMae Originators .......................................................    1
CitiMae Pool ..............................................................  A-1
CitiMortgageCertificates ..................................................    1
Class .....................................................................    1
Cleanup Costs ............................................................. A-30
CMI .......................................................................    1
CMI Pool ..................................................................  A-1
CMSI Pool .................................................................  A-1
Code ......................................................................    1
Commission ................................................................    2
Consolidation Agreements ..................................................  A-2
Converted Mortgage Loan ...................................................  A-5
Cooperative Loans .........................................................  A-1
Cooperative Notes .........................................................  A-1
Cooperatives ..............................................................  A-1
Credit Support Percentage .................................................   10
Cut-Off Date ..............................................................  A-9
Deferred Interest .........................................................   45
Depository ................................................................ A-11
Detailed Information ......................................................    2
Determination Date ........................................................    5
Disqualified Organization .................................................   51
Distribution Date .........................................................    5
DTC .......................................................................    4


                                        i
<PAGE>

TERM                                                                       PAGE
- ----                                                                       ----
Due Period ................................................................    8
Eligible Investments ......................................................   19
Enhancement Act ...........................................................   38
EDGAR .....................................................................    2
ERISA .....................................................................   36
Events of Default .........................................................   33
Exchange Act ..............................................................    2
FDIC ......................................................................   19
FHA .......................................................................  B-1
FHA Loans .................................................................  B-1
FHLMC .....................................................................   18
FHLMC Act .................................................................  B-2
FHLMC Certificate Group ...................................................  B-3
FHLMC Certificates ........................................................   18
Fixed Rate Pool ...........................................................  A-1
FNMA ......................................................................   18
FNMA Certificates .........................................................   18
Foreign Investors .........................................................   52
Form of Pooling Agreement .................................................    3
Garn-St Germain Act ....................................................... A-28
GNMA ......................................................................   18
GNMA Certificates .........................................................   18
GNMA I Certificates .......................................................  B-1
GNMA II Certificates ......................................................  B-1
Gold PCs ..................................................................  B-3
GPMs ......................................................................  A-5
Guaranty ..................................................................    1
Housing Act ...............................................................  B-1
Index .....................................................................  A-6
Interest Accrual Period ...................................................    6
IRA .......................................................................   36
Issuer ....................................................................    1
Issuer Certificates .......................................................    1
Last Scheduled Distribution Date ..........................................   12
Leasehold Loans ...........................................................   18
Letter of Credit ..........................................................   10
Limited Guaranty ..........................................................   10
Liquidated Loan ...........................................................   12
Liquidating Loan ..........................................................   11
Loss Allocation Event .....................................................    7
Market Discount ...........................................................   45
Mark to Market Regulations ................................................   53
Master Servicer ...........................................................  A-4
Master Servicing Fee ......................................................  A-4
Maximum Note Rate .........................................................  A-5
Minimum Note Rate .........................................................  A-5
Minimum Prepayment Agreement ..............................................   19
Minimum Reinvestment Agreement ............................................   20
Modification Agreements ...................................................  A-2
Moody's ................................................................... A-11
Mortgage Certificates .....................................................    1


                                       ii
<PAGE>

TERM                                                                       PAGE
- ----                                                                       ----
Mortgage Loans ............................................................    1
Mortgage Margin ...........................................................  A-5
Mortgaged Properties ......................................................  A-1
Mortgagor .................................................................  A-2
Mortgagor Bankruptcy Bond .................................................   10
NCUA ......................................................................   38
New Regulations ...........................................................   56
1986 Act ..................................................................   41
Non-Conforming Loans ......................................................   16
Noneconomic Residual Interests ............................................   52
Non-U.S. Person ...........................................................   55
Note Rate .................................................................  A-4
Notice Date ............................................................... A-14
NYBU ......................................................................   22
OCC .......................................................................   38
OID Regulations ...........................................................   42
Original Issue Discount ...................................................   42
Original PCs ..............................................................  B-3
Original Value ............................................................   23
Originators ...............................................................    1
OTS .......................................................................   32
PA ........................................................................  A-1
Pass-Through Entity .......................................................   52
Pass-Through Rate .........................................................  A-4
Payment Period ............................................................ A-13
Periodic Ceiling ..........................................................  A-5
Periodic Floor ............................................................  A-5
Plans .....................................................................   36
Policy Statement ..........................................................   39
PCBs ...................................................................... A-30
Pool ......................................................................    1
Pool Distribution Amount ..................................................    5
Pool Insurance Policies ...................................................   10
Pool Value ................................................................    6
Pool Value Group ..........................................................    7
Pooling Agreement .........................................................    3
Premium ...................................................................   46
Prepayment Assumption .....................................................   43
Primary Mortgage Insurance Policy ......................................... A-18
Principal Prepayment ......................................................    5
Prospectus Supplement .....................................................  A-3
PTC .......................................................................  B-2
PTE 83-l ..................................................................   37
Purchase Amount Advance ...................................................   11
Rating Requirements ....................................................... A-11
RCRA ...................................................................... A-31
Real Estate Loans .........................................................  A-1
Record Date ...............................................................    5
Registration Statement ....................................................    3
Regulations ...............................................................   36
REMIC .....................................................................    1
REMIC Regulations .........................................................   39


                                       iii
<PAGE>

TERM                                                                       PAGE
- ----                                                                       ----
REMIC Servicing Fee .......................................................   13
Reserve Fund ..............................................................   10
Residual Certificates .....................................................    1
Residual Holders ..........................................................   48
Retail Class CitiCertificate ..............................................   42
SAIF ......................................................................   19
SBJPA of 1996 .............................................................   40
Scheduled Principal ....................................................... A-12
Securities Act ............................................................    4
Senior Certificates .......................................................    1
Senior/Subordinated Series ................................................    1
Series ....................................................................  S-1
Servicer ..................................................................   13
Servicing Account ......................................................... A-15
Servicing Compensation ....................................................   14
Servicing Fee .............................................................   14
SFAS ......................................................................   58
Similar Law ...............................................................   37
Single Certificate ........................................................    5
Special Distributions .....................................................    8
Special Hazard Insurance Policies .........................................   10
Spread ....................................................................    8
S&P ....................................................................... A-10
Startup Day ...............................................................   20
Stated Amount .............................................................    6
Stated Rate ...............................................................    6
Subclass ..................................................................    1
Subordinated Certificates .................................................    1
Subordination Amount ......................................................    9
Subordination Reserve Fund ................................................    9
Subservicer ...............................................................   22
Superlien ................................................................. A-30
Third Party Loans .........................................................   13
Third Party Originators ...................................................    1
Third Party Pool ..........................................................  A-1
Title V ................................................................... A-29
Title VIII ................................................................ A-30
Transfer Instrument .......................................................   16
Trust .....................................................................    1
Trustee ...................................................................    3
UCC ....................................................................... A-25
Underlying Trustee ........................................................   17
U.S. Person ...............................................................   53
USTs ...................................................................... A-31
VA ........................................................................   21
VA Loans ..................................................................  B-1
Variable Rate CitiCertificates ............................................   44
Voluntary Advances ........................................................ A-12
Whole or Partial Pool Issuer Certificates .................................   17
Window Period Loans ....................................................... A-28
Window Period States ...................................................... A-28


                                       iv
<PAGE>

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

     NO  PERSON  HAS  BEEN  AUTHORIZED  TO GIVE ANY  INFORMATION  OR TO MAKE ANY
REPRESENTATIONS  OTHER THAN THOSE CONTAINED IN THE PROSPECTUS OR THIS PROSPECTUS
SUPPLEMENT AND, IF GIVEN OR MADE, SUCH INFORMATION OR  REPRESENTATIONS  MUST NOT
BE  RELIED  UPON.   NEITHER  THE  PROSPECTUS  NOR  THIS  PROSPECTUS   SUPPLEMENT
CONSTITUTES AN OFFER TO SELL OR A SOLICITATION OF AN OFFER TO BUY ANY SECURITIES
OTHER THAN THE OFFERED CITICERTIFICATES  DESCRIBED IN THIS PROSPECTUS SUPPLEMENT
OR AN  OFFER  TO  SELL  OR THE  SOLICITATION  OF AN  OFFER  TO BUY  THE  OFFERED
CITICERTIFICATES  TO ANY PERSON IN ANY STATE OR OTHER JURISDICTION IN WHICH SUCH
OFFER OR SOLICITATION WOULD BE UNLAWFUL.  NEITHER THE DELIVERY OF THE PROSPECTUS
NOR THIS PROSPECTUS  SUPPLEMENT NOR ANY SALE MADE THEREUNDER OR HEREUNDER AT ANY
TIME IMPLIES THAT INFORMATION HEREIN IS CORRECT AS OF ANY TIME SUBSEQUENT TO THE
DATE HEREOF OR THEREOF.

                                   ----------

                               TABLE OF CONTENTS
                             PROSPECTUS SUPPLEMENT

                                                                           Page

Summary of Prospectus and Prospectus
  Supplement .....................................................          S-5
Description of the Pool and the Mortgaged
  Properties .....................................................          S-24
Risk Factors for Purchasers of Class M
  CitiCertificates and Offered Class B
  CitiCertificates ...............................................          S-26
Description of the Offered CitiCertificates ......................          S-29
ERISA Considerations .............................................          S-54
Legal Investment .................................................          S-56
Plan of Distribution .............................................          S-56
Legal Matters ....................................................          S-57
Incorporation of Certain Documents
  by Reference ...................................................          S-57
Index of Principal Definitions in Prospectus
  Supplement .....................................................          S-58

                                   PROSPECTUS

Reports to Certificateholders .............................................    2
Additional Information ....................................................    2
Available Information .....................................................    2
Additional Detailed Information ...........................................    2
Incorporation of Certain Documents
  By Reference ............................................................    3
Description of Certificates ...............................................    4
The Pools .................................................................   14
Citicorp Mortgage Securities, Inc. ........................................   21
The Originators ...........................................................   21
Loan Underwriting Policies ................................................   23
Delinquency, Foreclosure and Loss
  Considerations and Experience ...........................................   27
Citicorp ..................................................................   31
Use of Proceeds ...........................................................   31
The Pooling Agreements ....................................................   31
ERISA Considerations ......................................................   36
Legal Investment ..........................................................   38
Certain Federal Income Tax Consequences ...................................   39
Plans of Distribution .....................................................   57
Experts ...................................................................   58
Appendix A:  The Mortgage Loans and
             CitiMortgageCertificates
Appendix B:  The Agency Certificates
Index of Principal Definitions

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


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

                                  $205,904,926
                                 (APPROXIMATE)

                               CITICORP MORTGAGE
                                SECURITIES, INC.
                            (PACKAGER AND SERVICER)

                        REMIC PASS-THROUGH CERTIFICATES
                                 SERIES 1998-1


                        $128,077,000 (APPROXIMATE) 6.75%
                       SENIOR CLASS A-1 CITICERTIFICATES

                         $6,000,000 (APPROXIMATE) 6.75%
                       SENIOR CLASS A-2 CITICERTIFICATES

                        $32,561,000 (APPROXIMATE) 6.75%
                       SENIOR CLASS A-3 CITICERTIFICATES

                        $10,254,477 (APPROXIMATE) 6.75%
                       SENIOR CLASS A-4 CITICERTIFICATES

                        $20,767,000 (APPROXIMATE) 6.75%
                       SENIOR CLASS A-5 CITICERTIFICATES

                             $146,449 (APPROXIMATE)
                       SENIOR CLASS A-6 CITICERTIFICATES

                         $5,191,000 (APPROXIMATE) 6.75%
                  SENIOR SUBORDINATED CLASS M CITICERTIFICATES

                         $1,765,000 (APPROXIMATE) 6.75%
                    SUBORDINATED CLASS B-1 CITICERTIFICATES

                         $1,143,000 (APPROXIMATE) 6.75%
                    SUBORDINATED CLASS B-2 CITICERTIFICATES


                                   ----------
                             PROSPECTUS SUPPLEMENT

                               FEBRUARY 24, 1998
                                   ----------




                              SALOMON SMITH BARNEY


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



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