Document:

AMENDMENT NO. 1 TO ESCROW AGREEMENT

            Amendment No. 1 to Escrow Agreement (this "Agreement"),  dated as of
February  1, 2000,  by and among  Liberty  Food Group,  LLC, a Delaware  limited
liability  company  (the  "Buyer"),   Ferro  Foods   Corporation,   a  New  York
corporation,  Frank Ferro, Sr. and Frank Gambino  (collectively,  the "Seller"),
and Herrick, Feinstein LLP (the "Escrow Agent").

                                    RECITALS

            WHEREAS, the parties hereto have executed the Escrow Agreement dated
as of November 23, 1999 (the "Escrow  Agreement";  capitalized terms used herein
not otherwise  defined shall have the meanings given to such terms in the Escrow
Agreement)  pursuant to which,  among other  things,  the Shares were subject to
escrow  until a financial  accommodation  to satisfy the Debt was in place which
was satisfactory to the Buyer;

            WHEREAS,  since the financial  accommodation was not in place at the
time  stipulated for in the Escrow  Agreement,  the Buyer and the Seller wish to
amend the  Escrow  Agreement  upon the terms  and  conditions  set forth in this
Agreement.

            NOW,  THEREFORE,   in  consideration  of  the  premises  and  mutual
covenants  contained  herein,  and other good and  valuable  consideration,  the
receipt and  sufficiency  of which is hereby  acknowledged,  the parties  hereto
agree as follows:

            1. Each of the Sellers  hereby  acknowledges  that the Buyer and its
business have been economically harmed and the value of the Purchased Assets has
been diminished as a result of the failure of the establishment of the financial
accommodation  to satisfy  the Debts as  required  pursuant  to the terms of the
Purchase Agreement and Escrow Agreement.  Accordingly, the Sellers and the Buyer
agree as follows:

                  (i) 67,000 of the Shares belonging to Ferro Foods  Corporation
shall be released  from escrow and  transferred  to Suan  Investments  (50,400);
Martin Siegel (8,000);  Stoubridge  Investments  (5,600), Eli Goldin (2,500) and
Ira Dick (500).

                  (ii)  The  balance  of  the  Shares  (1,933,000)  (hereinafter
referred to as the "Escrow  Shares") shall remain subject to escrow and released
only upon the written  instructions  of the Buyer.  It is the  intention  of the
Seller that the Escrow Shares shall be used, to the extent possible,  to satisfy
outstanding debts and liabilities of the Business and the Purchased Assets.

            2. Seller  hereby  agrees,  acknowledges  and confirms  that (i) the
Escrow  Shares shall not be released to the Seller unless and until the Buyer is
satisfied,  in its  sole  and  absolute  discretion,  that  all  liabilities  or
obligations of the Business and any  liabilities or obligations of the Seller or
the  Principals in  connection  with or related to the Business or the Purchased
Assets  have been  satisfied  and (ii) the  Seller  shall  have no rights to the
Escrow Shares until and unless the Buyer  releases  said shares,  in said amount
and at times to be determined in the sole discretion of the Buyer.

<PAGE>

            3. The Seller  hereby agrees that the Escrow Agent shall be entitled
to act upon the receipt of a letter from the Buyer  instructing the Escrow Agent
as to whom any portion of the Escrow Shares shall be delivered.

            4.  Entire  Agreement.  This  Agreement  and  the  Escrow  Agreement
constitute the entire  agreement  between the parties hereto with respect to the
subject  matter hereof and  supersedes  all prior written or oral  negotiations,
representations,  agreements,  commitments,  contracts  or  understandings  with
respect thereto and no  modification,  alteration or amendment to this Agreement
may be made  unless  the same shall be in  writing  and  signed by both  parties
hereto.

            5. Full Force and Effect.  Other than as  specifically  set forth in
this Agreement, all terms and conditions of the Escrow Agreement shall remain in
full force and effect.  All  references to the Escrow  Agreement  after the date
hereof  shall   automatically   be  deemed  to  include  this  Agreement,   and,
accordingly,  without limiting the generality of this sentence, it is understood
and agreed that the defined term "Agreement" includes,  collectively, the Escrow
Agreement and this Agreement.

            6.    Governing   Law.  This  Agreement  and  the  rights  of  the
                  ---------------
parties shall be governed by, and  construed in accordance  with the laws of the
State of New York without giving effect to principles of conflicts of law.

            7.    References.   The  headings  in  this   Agreement   are  for
                  ----------
 convenience of reference only and not for any other purpose.

            8.    Counterparts.  This  Amendment  may  be  executed  in one or
                  ------------
 more  counterparts and as so executed shall constitute one agreement  binding
 on the Seller and the Buyer.

       [Remainder of Page Intentionally Omitted; Signature Page to Follow]

<PAGE>

            IN WITNESS WHEREOF,  the parties hereto have executed this Agreement
 on the date and year first above written.

                                     HERRICK, FEINSTEIN LLP
                                     as Escrow Agent

                                     By: /s/
                                          Name: Herrick, Feinstein LLP

                                     FERRO FOODS CORPORATION

                                             /s/
                                     -------------------------------
                                     Frank Ferro, Sr.
                                     President

                                             /s/
                                     --------------------------------
                                     Frank Gambino
                                     Secretary & Tresurer

                                     LIBERTY FOOD GROUP, LLC

                                     By:  LIBERTY GROUP HOLDINGS, INC.,
                                          f/k/a BIO-RESPONSE, INC.,
                                                its sole member

                                          By:   _____/s/____________________
                                                Name: Barry Hawk
                                                Title: President<PAGE>

                                                                    EXHIBIT 10.2

                                 AMENDMENT TO
                          BRIDGEPOINT LEASE AGREEMENT

      This AMENDMENT TO BRIDGEPOINT LEASE AGREEMENT (this "Amendment") is
entered into as of September 30, 1997, by and between INVESTORS LIFE INSURANCE
COMPANY OF NORTH AMERICA, a Washington corporation ("Landlord"), and PSW
TECHNOLOGIES, INC., a Delaware corporation ("Tenant").

                               R E C I T A L S:

     A.   Landlord and Tenant executed that certain Bridgepoint Lease Agreement
("Lease") dated October 31, 1996, covering the Three Bridgepoint Premises (same
being approximately 36,319 rentable square feet in Three Bridgepoint) and the
One Bridgepoint Premises (same being approximately 10,000 rentable square feet
in One Bridgepoint). Capitalized terms used in this Amendment and not otherwise
defined herein shall have the meanings given to them in the Lease, unless
amended herein.

     B.   National Instruments Corporation ("National Instruments") currently
occupies Suites 100, 130, 170, 180, 350, 420 and 450 of One Bridgepoint. Suites
100, 130, 170 and 180 contain approximately 11,072 rentable square feet and
constitute the One Bridgepoint Premises. The floor plan of the One Bridgepoint
Premises (Suites 100, 130, 170 and 180) is attached hereto as Exhibit "B-1"
                                                              ------------
and made a part hereof for all purposes, and is hereby substituted as
Exhibit "B-1" to the Lease. Suites 350, 420 and 450 contain approximately
------------
16,279 rentable square feet and constitute the National Instruments Refusal
Space. The floor plans of the National Instruments Refusal Space (Suites 350,
420 and 450) are attached hereto as Exhibit "B-2" and made a part hereof for all
                                    ------------
purposes, and are hereby added as Exhibit "B-2" to the Lease.
                                  ------------

     C.   National Instruments was originally scheduled to vacate Suites 100,
130, 170 and 180 in One Bridgepoint (same being the One Bridgepoint Premises) no
later than February 28, 1998, as set forth in the Second Amendment to Lease
Agreement dated October 1, 1996, between Landlord and National Instruments.
However, National Instruments has advised Landlord that it is willing to vacate
Suites 100, 130, 170 and 180 by December 31, 1997, and further, that it will
vacate Suites 350, 420 and 450 (the "National Instruments Refusal Space") by
May 31, 1998. Landlord and National Instruments have executed a Third Amendment
to the National Instruments Lease confirming these vacation dates.

     D.   Tenant has a right of first refusal as set forth in Section 2.05 and
Exhibit "G" of the Lease, including a right of first refusal to lease the
----------
National Instruments Refusal Space. Subject to Landlord and National Instruments
executing an amendment to the National Instruments Lease confirming vacation of
the National Instruments Refusal Space by May 31, 1998, Tenant desires to
exercise its right of first refusal to lease the National Instruments Refusal
Space.

                                   1

<PAGE>

     E. Landlord acknowledges that the Lease Guaranty executed by Pencom
Systems, Inc. as required by Section 15.26 of the Lease has terminated in
accordance with Section 20 of the Lease Guaranty, and that same is null, void
and of no further force and effect, and has been returned by Landlord to Pencom
Systems, Inc.

     F. Landlord and Tenant desire to modify and amend the Lease in order to,
among other things, (i) acknowledge Tenant's exercise of the right of first
refusal as set forth herein, (ii) correct the description and rentable square
feet contained in the One Bridgepoint Premises, (iii) correct the description
and rentable square feet contained in the National Instruments Refusal Space,
(iv) amend the Schedule for the approval of the One Bridgepoint Drawings and One
Bridgepoint Premises set forth the Schedule for approval of the drawings and
construction contract for the National Instruments Refusal Space, (v) set
forth the Commencement Date for the National Instruments Refusal Space, and
(v) adopt the other amendments as set forth herein.

                                   AGREEMENT

     NOW, THEREFORE, in consideration of the above recitals and other good and
valuable consideration, the receipt and sufficiency of which are hereby
acknowledged, Landlord and Tenant agree as follows:

     1. The foregoing Recitals are incorporated into this Amendment for all
purposes.

     2. Landlord and Tenant acknowledge and agree that the One Bridgepoint
Premises as originally defined in the Lease, consisted of Suites 100, 130, 170
and 180 in One Bridgepoint as described in Exhibit "B-1"  attached hereto,
                                           -------------
and that the National Instruments Refusal Space as originally defined in the
Lease, consisted of Suites 350, 420 and 450 as described in Exhibit "B-2"
                                                            -------------
attached hereto. The rentable square footage of the One Bridgepoint Premises and
the National Instruments Refusal Space shall be measured in accordance with the
most recent BOMA Standard Method of Floor Measurement (the "BOMA Standard"),
which will be confirmed by architect's verification. In the event the
measurement of the One Bridgepoint Premises or the National Instruments Refusal
Space results in a change in the rentable area of the Premises, all appropriate
terms herein shall be adjusted accordingly.

     3. It is contemplated that National Instruments will vacate the One
Bridgepoint Premises on or about December 31, 1997, and the National Instruments
Refusal Space on or about May 31, 1998. Upon the execution of an amendment to
National Instruments Lease confirming such vacation dates, Landlord will advise
Tenant of such amendment. Landlord will use all reasonable efforts to require
National Instruments to vacate the One Bridgepoint Premises and the National
Instruments Refusal Space on such dates, but Landlord shall have no liability or
obligation to Tenant if National Instruments does not timely vacate either the
One Bridgepoint Premises or the National Instruments Refusal Space.

     4. Landlord and Tenant acknowledge and agree that Tenant has exercised its
right of first refusal to lease the National Instruments Refusal Space, subject
only to Landlord and Tenant

                                       2

<PAGE>

executing the amendment to the National Instruments Lease confirming that
National Instruments will vacate the National Instruments Refusal Space by May
31, 1998.

     5.   The Schedule related to the commencement of construction of the One
Bridgepoint Premises as set forth in Section B6 of Exhibit "D" is hereby amended
                                                   -----------
to read as follows:

     November 15, 1997 -  One Bridgepoint Drawings, including mechanical,
                          electrical and plumbing plans and specifications, all
                          in a form and content suitable for construction
                          bidding, must be completed and delivered to Contractor
                          for bidding. The One Bridgepoint Drawings should
                          include approximately ten optional items, one or more
                          of which could be deleted if the One Bridgepoint
                          Construction Cost bid exceeds an amount acceptable to
                          Tenant.

     December 2, 1997  -  Contractor will provide the One Bridgepoint
                          Construction Cost bid to Tenant based on the One
                          Bridgepoint Drawings.

     December 10, 1997 -  Tenant must approve a final One Bridgepoint
                          Construction Cost, based on the One Bridgepoint
                          Construction Cost bid submitted by Contractor, as
                          adjusted, negotiated and finally approved, based on
                          the One Bridgepoint Drawings, less any optional items
                          deleted in order to obtain an acceptable One
                          Bridgepoint Construction Cost.

     December 11, 1997 -  Landlord and Contractor execute the One Bridgepoint
                          Construction Contract which contains the final
                          approved One Bridgepoint Construction Cost which has
                          been approved by Tenant. Construction will commence
                          within three (3) business days after National
                          Instruments vacates the One Bridgepoint Premises.

     6    The Schedule related to the commencement of construction of the Tenant
Improvements for the National Instruments Refusal Space shall be as follows:

     April 15, 1998 - National Instruments Refusal Space Drawings, including
                      mechanical, electrical and plumbing plans and
                      specifications, all in a form and content suitable for
                      construction bidding, must be completed and delivered to
                      Contractor for bidding. The National Instruments Refusal
                      Space Drawings should include approximately ten optional
                      items, one or more of which could be deleted if the
                      National Instruments Refusal Space Construction Cost bid
                      exceeds an amount acceptable to Tenant.

                                       3

<PAGE>

     May 2, 1998  -   Contractor will provide the National Instruments Refusal
                      Space Construction Cost bid to Tenant based on the
                      National Instruments Refusal Space Drawings.

     May 10, 1998 -   Tenant must approve a final National Instruments Refusal
                      Space Construction Cost, based on the National Instruments
                      Refusal Space Construction Cost bid submitted by
                      Contractor, as adjusted, negotiated and finally approved,
                      based on the National Instruments Refusal Space Drawings,
                      less any optional items deleted in order to obtain an
                      acceptable National Instruments Refusal Space Construction
                      Cost.

     May 11, 1998 -   Landlord and Contractor execute the National Instruments
                      Refusal Space Construction Contract which contains the
                      final approved National Instruments Refusal Space
                      Construction Cost which has been approved by Tenant.
                      Construction will commence within three (3) business days
                      after National Instruments vacates the National
                      Instruments Refusal Space.

Notwithstanding the foregoing, if National Instruments vacates the National
Instruments Refusal Space prior to May 31, 1998, the dates set forth in this
Section 6 of this Amendment shall be accelerated by the same number of days
between May 31, 1998 and the date National Instruments actually vacates the
National Instruments Refusal Space.

     7.   Section 1(e) of Exhibit "G" of the Lease shall be amended to read as
                          -----------
follows:

     (e)  In the event Tenant exercises the right of first refusal
          pursuant to the terms hereof, Landlord shall do the work
          necessary to furnish and install within the National
          Instruments Refusal Space, in accordance with drawings to be
          prepared by Tenant and approved in writing by Landlord, the
          Building Standard tenant improvements and other additional
          tenant improvements provided for in the drawings. The cost
          of the work shall be advanced by Landlord for the benefit of
          Tenant, to be repaid by Tenant in the form of Base Rent, but
          only to the extent that the aggregate cost of furnishing the
          Building Standard improvements and such additional
          improvements provided for in the drawings does not exceed an
          amount per rentable square foot leased, rounded up or down
          to the nearest cent, equal to (X) $7.50 per square foot
          leased, times (Y) the number of months remaining in the Term
          (excluding all renewals), divided by seventy-one (71).

     8.   Section 2(e) of Exhibit "G" shall be amended to read as
                          ----------
          follows:

     (e)  In the event Tenant exercises the right of first refusal
          pursuant to the terms hereof, Landlord shall do the work
          necessary to furnish and install within

                                       4

<PAGE>

          the One Bridgepoint Refusal Space, in accordance with
          drawings to be prepared by Tenant and approved in writing by
          Landlord, the Building Standard tenant improvements and
          other additional tenant improvements provided for in the
          drawings. The cost of the work shall be advanced by Landlord
          for the benefit of Tenant, to be repaid by Tenant in the
          form of Base Rent, but only to the extent that the aggregate
          cost of furnishing the Building Standard improvements and
          such additional improvements provided for in the drawings
          does not exceed an amount per rentable square foot leased,
          rounded up or down to the nearest cent, equal to (X) $7.50
          per square foot leased, times (Y) the number of months
          remaining in the Term (excluding all renewals), divided by
          seventy-one (71).

     9.   Landlord and Tenant acknowledge and agree that the Term for the
National Instruments Refusal Space shall be for a term of approximately sixty-
six (66) months. The Commencement Date for the National Instruments Refusal
Space shall be a date which is earlier of (a) the date when the Tenant
Improvements for the National Instruments Refusal Space are substantially
completed, which the parties anticipate will be approximately forty-five (45)
days after National Instruments vacates the National Instruments Refusal Space,
(b) the date Tenant occupies all or any part of National Instruments Refusal
Space, or (c) the date the Tenant Improvements for the National Instruments
Refusal Space would have been substantially completed but for the failure of
Tenant to comply with the schedule described in Section 5 above, change orders
requested by Tenant to the Tenant Improvements for the National Instruments
Refusal Space, or any other act of the Tenant causing delay in completion of the
Tenant Improvements for the National Instruments Refusal Space (the "Tenant
Delay"). Within five (5) days after the Commencement Date for the National
Instruments Refusal Space and at any time thereafter upon the request of
Landlord, Tenant shall execute and deliver to Landlord a declaration in the form
of Exhibit "E-3" attached hereto and made a part hereof for all purposes,
   ------------
specifying, among other things, the date upon which the same occurred.
Exhibit "E-3" shall become Exhibit "E-3" to the Lease.
------------               ------------

     10.  The Base Rent for the National Instruments Refusal Space shall
commence on the National Instruments Refusal Space Commencement Date. In the
event the National Instruments Refusal Space Commencement Date occurs other
than on the first day of the month, the rent for the applicable first month
shall be prorated from such applicable Commencement Date until the end of such
month.

     11.  Landlord and Tenant acknowledge and agree that the Base Rent for the
One Bridgepoint Premises and the National Instruments Refusal Space shall be the
amounts set forth in Section 3.01 of the Lease.

     12.  Landlord and Tenant acknowledge and agree that the correct amount of
rentable square feet contained in One Bridgepoint 83,604, instead of 84,723 as
originally set forth in the Lease, and the Lease is hereby amended accordingly.
Landlord and Tenant acknowledge and agree that Tenant's Pro Rata Share of
Operating Expenses for One Bridgepoint Premises as set forth in

                                       5

<PAGE>

Section 3.02 of the Lease shall be amended to be thirteen and 24/100ths percent
(13.24%), and Tenant's Pro Rata Share of Operating Expenses for the National
Instruments Refusal Space shall be nineteen and 60/100ths percent (19.60%) for
One Bridgepoint.

     13.  Landlord acknowledges and agrees that the Lease Guaranty executed by
Pencom Systems, Inc. as required by Section 15.26 of the Lease has terminated in
accordance with Section 20 of the Lease Guaranty, and that same is null, void
and of no further force and effect, and has been returned by Landlord to Pencom
Systems, Inc.

     14.  The Lease, as amended by this Amendment, is hereby ratified and
confirmed in all respects.

     15.  This Amendment may be executed in multiple counterparts which, when
combined together, shall constitute an original of this Amendment. In addition,
facsimile signatures of the parties shall be effective on all counterparts of
this Amendment.

     16.  This Amendment, together with the Lease, embodies the entire agreement
of the parties hereto, and incorporates all previous correspondence or
communications, whether oral or written. The Lease, as amended by this
Amendment, can only be further modified or varied by written instrument
subscribed to by all the parties hereto.

     IN WITNESS WHEREOF, the parties have executed this Amendment as of the date
first above written.

                                         LANDLORD:

                                         INVESTORS LIFE INSURANCE COMPANY OF
                                         NORTH AMERICA, a Washington corporation

                                         By: /s/ Roy Mitte
                                            ------------------------------------
                                                 Roy F. Mitte
                                                 President

                                         TENANT:

                                         PSW TECHNOLOGIES, INC.

                                         BY: /s/ Pat Motola
                                            ------------------------------------
                                         Name: PAT MOTOLA
                                              ----------------------------------
                                         Title: CFO, SR. VP
                                               ---------------------------------

                                       6

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