EXHIBIT 10.10


GSHAMMER: 6290

C.L.C. NORTH ATTLEBORO TRUST
c/o Leatherbee & Co.
1330 Boylston Street
Chestnut Hill, Massachusetts  02167


                                                                   April 4, 1994

L.G. Balfour Company, Inc.
25 County Street
Attleboro, Massachusetts  02703

     Re:  John L. Dietsch Boulevard, North Attleboro, MA
          (Balfour Company Lease dated March 14, 1994)

Ladies and Gentlemen:

     Reference is made to the above-captioned  lease (the "Lease"),  dated as of
March 14, 1994, in which you are named as Tenant and the undersigned is named as
Landlord.  Terms which are  defined in the Lease shall have the same  respective
meanings when used herein.

     The purpose of this  letter-agreement  is to memorialize certain additional
agreements between us as Landlord and Tenant under the Lease,  supplementing the
terms and provisions thereof.

     Reference  is  also  made  to  the  Landlord's   inducement   payment  (the
"Inducement Payment") referred to in Section 13.26 of the Lease. Pursuant to the
provisions of said Section 13.26, the Inducement  Payment is required to be paid
upon satisfaction of the requirements and conditions more particularly set forth
therein,  including  the  completion  and payment in full for the Tenant's  Work
referred to in the Lease.  In order to facilitate  the initial  remodelling  and
other  construction to be performed  pursuant to the terms and provisions of the
Lease, and the "progress  payments" required therefor,  Tenant has requested and
the parties hereby agree as follows:

     1. Both the Landlord's  Work and the Tenant's Work referred to in the Lease
to  be  performed   promptly   following  the  execution  and  delivery  thereof
(collectively,  the  "Work")  shall  be  performed  pursuant  to a  construction
contract (the "Construction  Contract") to be entered into by and between Tenant
(as "Owner") on the one hand, and the contractor




selected by  Landlord  and Tenant to perform  said work,  Dacon  Corporation  of
Natick,  MA (herein referred to as the "General  Contractor").  The Construction
Contract  will be  finalized  by  Tenant  and the  General  Contractor  with the
assistance of the Project  Architect  (referred to below);  and the Construction
Contract  (including any  amendments  thereto) will be subject to the Landlord's
prior written  approval with respect to the Landlord's  Work-related  provisions
(which approval shall not unreasonably be withheld or delayed).

     2. Landlord hereby  confirms and agrees that Tenant is authorized,  subject
to and in accordance with all applicable  provisions of the Lease (including the
provisions  contained  in  this  letter-agreement),  to  cause  the  Work  to be
performed and, in that regard, to enter into the Construction  Contract with the
General  Contractor and to be named therein and have the rights and  obligations
thereunder  of  the  Owner  referred  to  therein  (said  Construction  Contract
contemplated  to be in the form of the  Abbreviated  Form of  Agreement  Between
Owner and  Contractor  known as AIA Document  A107,  with such changes as may be
agreed upon between the Tenant and the General  Contractor,  and approved to the
extent required hereunder by the Landlord).  Conversely,  Tenant agrees to cause
the Work to be  performed  and, in that regard,  to enter into the  Construction
Contract,  as  aforesaid,  and to act  prudently in  performing  the role of the
"Owner"  under the  Construction  Contract  in order  reasonably  to protect the
Landlord's interests as well as those of the Tenant itself.

     Any and all warranties and guarantees  running to or benefitting the Tenant
with respect to materials or labor, or both,  comprising the Work,  shall run to
and for the benefit of Landlord (as its interests may appear) as well as Tenant;
and,  either  the  Construction  Contract  expressly  shall so  provide,  or the
Construction  Contract shall permit the Tenant to assign the benefit  thereof to
Landlord  and,  in such  event,  the Tenant  does  hereby so assign (to  benefit
Landlord  jointly with Tenant) any and all such  warranties  and  guarantees  to
Landlord, and agrees reasonably to cooperate, to the extent (if any) required in
any proceeding by Landlord to enforce any of the same. The Construction Contract
shall provide for at least the normal and customary  warranties  and  guarantees
(in  scope and  duration)  now  consistent  with  good and  accepted  commercial
construction  industry standards and practices,  including,  without limitation,
those  contained  in Article 18 of the  Construction  Contract  with  respect to
Correction  of Work and the usual  fifteen  (15) year  complete  roofing  system
warranty




(as specified in the Final Plans and Specifications  referred to below). As long
as  Landlord  shall  make  its  payment  advances  to the  Tenant  hereunder  in
accordance with the requirements of the provisions of this letter-agreement with
respect to the Landlord's Work and Tenant's Work, respectively, the Tenant shall
be  responsible,  in turn,  to pay the General  Contractor  therefor and, as set
forth in the Lease,  to discharge  and to indemnify  Landlord  against any liens
that  may  arise  with  respect  to the  Work,  including  the  Landlord's  Work
(notwithstanding the last sentence of Section 13.6 of the Lease) (but nonpayment
hereunder  by  Landlord  pending  satisfaction  of the  conditions  to  advances
hereunder shall not diminish or otherwise affect Tenant's obligations under said
Section  13.6;  and nothing  herein shall  derogate  from the  provisions of the
Construction Contract).

     3. All of the Work shall be performed subject to and in accordance with the
plans  and  specifications  (the  "Final  Plans  and  Specifications")  for  the
Landlord's Work and the Tenant's Work, all as prepared by the Project  Architect
(referred to below) and set forth in or determined with the approval of Landlord
and Tenant in accordance  with the  provisions of the Lease (and, in particular,
which  were  used in  order  to  obtain  the  General  Contractor's  bid for the
performance of all such Work,  which bid was accepted by the parties in awarding
the Construction Contract to the General Contractor).

     4. The architect  responsible  for this project,  Dennis L. Roth, of Roth &
Seelen,  Inc., Hingham, MA (hereinafter  referred to as the "Project Architect")
will be  responsible  for  monitoring  and  administering  the Work (and, to the
extent  deemed by the  parties to be  necessary  or  appropriate,  supplementary
agreements  have been, or will be,  entered into between one or both of Landlord
and Tenant, on the one hand, and the Project Architect,  on the other hand, with
respect to its architectural and related services relative to the Project).

     Because the Work  includes both the  Landlord's  Work and the Tenant's Work
referred to in the Lease,  in the event of any cost overruns,  if there shall be
any question  whether a particular cost overrun relates (in whole or in part) to
the  Landlord's  Work for which the Landlord is  responsible to pay, the Project
Architect  shall  determine  the  extent  to which  the  same  would  relate  to
Landlord's  Work as  aforesaid,  and the Landlord  shall be consulted and have a
reasonable approval right over any change orders or the like resulting




in any increased costs to the Landlord.  Likewise, any change orders or the like
resulting in a credit/cost  savings shall be passed on to the appropriate  party
and the Project  Architect  shall,  if and to the extent  there is any  question
relative  thereto,  determine  which party is entitled  to any  particular  such
credit/savings.  Moreover,  for each requisition for payment and each payment to
be made  pursuant to the following  provisions  hereof with respect to the Work,
the Project  Architect  shall  determine  to what  extent  each such  payment is
attributable to Work which is Landlord's  Work and Tenant's Work,  respectively;
and,  likewise,  the Project  Architect shall determine the dates of substantial
completion of the Landlord's  Work and Tenant's Work for the purposes of (and in
accordance with the provisions relating thereto set forth in) the Lease.

     5. The  Landlord  shall make  advances in order to make the  payments to be
made under the terms and provisions of the Construction  Contract;  but, subject
to  and  in  accordance  with  the  provisions  of  this  letter-agreement.   In
particular,  the Landlord  shall fund or cause to be funded an aggregate  amount
which  shall not exceed the sum of (i) all  amounts to be paid  pursuant  to the
terms of the Construction  Contract on account of the Landlord's Work; plus (ii)
the lesser of: all amounts to be paid pursuant to the terms of the  Construction
Contract on account of the Tenant's Work; or, the $1,310,000 total amount of
 the  Inducement  Payment set forth in said  Section  13.26.  Any and all excess
costs and expenses  whatsoever  with respect to the Tenant's  Work shall be paid
for by Tenant.

     6.  All  amounts  which  are  advanced  by  the  Landlord  pursuant  to the
provisions  hereof which relate to the Tenant's Work (but not any funds advanced
which relate to the Landlord's  Work) shall bear interest  payable by the Tenant
to the Landlord from the time advanced until the date (the  "Inducement  Payment
Date") on which the  Landlord's  Inducement  Payment  becomes due and payable in
full pursuant to the terms and  provisions of said Section 13.26 of the Lease or
the earlier  repayment of such funds by Tenant to Landlord.  Such interest shall
accrue at an annual rate equal to nine percent  (9%),  shall be  calculated on a
daily basis and shall accrue and be payable on the actual  number of days in the
period from the time of advance until repaid (actually,  or as imputed as of the
Inducement  Payment  Date,  as the  case may be,  as  aforesaid).  Such  accrued
interest only shall be paid by the Tenant to the Landlord  monthly,  in arrears,
on the first day of each calendar month commencing June 1, 1994; and any and all
such accrued interest, if not




sooner paid,  shall be so paid no later than  together with the first payment of
Fixed Rent which shall become due and payable under the  provisions of the Lease
after the Inducement Payment Date (or the date of any earlier termination of the
Lease).

     All such  advances  hereunder  relating to the Tenant's Work and which bear
interest as aforesaid are being  treated for the purposes  hereof as advances on
account of the  Landlord's  Inducement  Payment  (and,  thus,  are  referred  to
collectively  and in the  aggregate  sometimes  hereinafter  as the  "Inducement
Payment  Advance"),  which Inducement Payment Advance the Tenant hereby promises
to pay, in accordance with the provisions  hereof, to the order of Landlord,  on
or before the Inducement Payment Date (or the date of any earlier termination of
the Lease).  To the extent of all advances on account of the Inducement  Payment
Advance  which remain  outstanding  on the  Inducement  Payment  Date,  upon the
occurrence  of said date,  the full  amount of the  Inducement  Payment  (or the
portion  thereof equal to the aggregate  amount of  Landlord's  said  Inducement
Payment Advance,  as the case may be) shall be imputed and otherwise  considered
for all  purposes  to have been paid to Tenant  (on  account  of the  Landlord's
obligations  under said Section 13.26) by virtue of repayment to Landlord of the
Inducement  Payment  Advance;  and,   correspondingly,   shall  be  imputed  and
considered  for all purposes to have been applied to repayment of the Inducement
Payment Advance as of said  Inducement  Payment Date. In the unlikely event of a
net savings  under the  Construction  Contract  such that the total amount to be
paid  thereunder  with respect to the Tenant's Work  ultimately is less than the
amount of the Inducement Payment specified in the Lease,  then,  notwithstanding
the amount of the  Inducement  Payment  set forth in said  Section  13.26 of the
Lease,  the Landlord  shall be relieved of its obligation to pay such portion of
the  Inducement  Payment as is equal to the excess of the total  amount  thereof
above the amount actually required in order to pay in full all amounts under the
Construction  Contract payable on account of the Tenant's Work. In the event any
amounts payable under the  Construction  Contract on account of the Work are not
advanced by Landlord when due in accordance  with the  provisions  hereof,  then
Tenant may notify Landlord  thereof (and, if applicable,  that Tenant intends to
make such advance on Landlord's  behalf) and, if Landlord's failure to make such
advance continues for ten (10) days after its receipt of such notice, same shall
constitute a default by Landlord hereunder for which Tenant shall have the right
to make such advance (and recoup same from Landlord, with




interest  at the  rate  provided  in the  Lease to  accrue  on late  Fixed  Rent
payments) and shall have all other  remedies for  recoupment  thereof  available
under the Lease and at law.

     7.  Notwithstanding the provisions of Section 9.2 of the Lease requiring at
least thirty (30) days advance notice of cancellations  in insurance  coverages,
with respect to notices of  cancellation  for  non-payment  the insurer shall be
required to give to the Landlord the maximum notice period  generally  available
and given in accordance  with good and accepted  commercial real estate industry
insurance  practices and standards from time to time; but, in no event shall the
insurer be required to give more than thirty (30) days notice and, in any event,
the insurer  shall never be permitted  to give the  Landlord  less than ten (10)
days advance notice of any such  cancellation  for  non-payment.  Moreover,  the
requirements  of said Section 9.2 that the Tenant  carry  rental loss  insurance
shall be  considered  satisfied  if and to the extent the  Landlord  actually is
protected  against  rental  loss  under  the  Lease by  virtue  of the  Tenant's
so-called  business  interruption  coverage all as if the Tenant had  maintained
independent  so-called  rental loss coverage as otherwise  required under and in
accordance with the provisions of said Section 9.2.

     8. While the Lease itself  actually was executed and  delivered,  and bears
the date, as of March 14, 1994, and will continue for identification purposes so
to do,  nonetheless  the  term of the  Lease  for all  purposes  (including  the
commencement of Tenant's responsibilities relative to the Property) shall not be
considered  to have  commenced  until,  and shall  commence on, the date of this
letter-agreement.

     9.  Attached  hereto,  incorporated  herein and made a part  hereof are the
"Terms and  Conditions  Applicable to Advances",  which set forth the conditions
precedent to and procedure for obtaining advances of the funds required in order
to pay for the Work being performed under the Construction  Contract  (including
the portions  thereof  attributable  to the Tenant's Work and, thus,  comprising
part of the  aforesaid  Inducement  Payment  Advance,  as  well as the  portions
thereof attributable to the Landlord's Work).

     10. The  provisions  hereof shall for all purposes be considered to be part
of and included in the Lease.  The Lease is hereby ratified and, as modified and
affected hereby, remains in full force and effect.





     11. The Project  Architect,  by its signature hereto,  hereby joins in this
letter-agreement  for the purposes of  confirming  its  agreement to be bound by
such  obligations  set  forth  hereinabove  as are  applicable  to  the  Project
Architect (but not to any other obligations).

     12. Julian Cohen, of Palm Beach,  Florida,  one of the beneficial owners of
the Landlord,  by his signature hereto,  hereby joins in this  letter-agreement,
and thus does hereby confirm and agree to be bound by, and  unconditionally  and
directly  (without the need first to resort to the Landlord or its  property) to
guarantee  and does hereby  guarantee the  performance  by the Landlord of, such
obligations set forth  hereinabove as are applicable to the Landlord (but not to
any other obligations)  including,  without  limitation,  the obligation to make
advances  to be  made  by the  Landlord  as set  forth  in  Paragraph  5 of this
letter-agreement.

     If there is anything amiss in the foregoing, please let us know. If, on the
other  hand,  everything  appears  to be  in  order,  kindly  arrange  for  this
letter-agreement and the four (4) enclosed photocopies to be signed on behalf of
the Tenant and joined in by the Project Architect (where indicated  below),  and
then for two (2) of those countersigned copies to be returned to the undersigned
and  the  third  to be  forwarded  to  the  Project  Architect,  whereupon  this
letter-agreement  shall take effect under seal and the Lease shall be treated as
having been amended hereby.

                                  Yours truly,

                                    /s/William B. Leatherbee

                                    /s/ Sandra K. Cummings


                                   Trustees of C.L.C. North Attleboro Trust, for
                                   them-  selves  and their  co-Trustee,  but in
                                   their  fiduciary  capacity  only, and without
                                   personal liability

                                   [LANDLORD]






CONFIRMED AND AGREED AS AFORESAID:

L.G. BALFOUR COMPANY, INC.

By: /s/ Francis X. Correra
   Its Executive Vice President
   Hereunto duly authorized

           [TENANT]


JOINED IN UNDER SEAL FOR THE PURPOSES SET FORTH HEREINABOVE:


                              ROTH & SEELEN, INC.

                                   By: /s/ Dennis L. Roth
                                      Dennis L. Roth, President
                                      Hereunto duly authorized

                                        [Project Architect]

                                /s/ Julian Cohen
                                   Julian Cohen, individually



GSHAMMER: 6290






TERMS AND CONDITIONS APPLICABLE TO ADVANCES

     The  following  set forth the  conditions  precedent to and  procedure  for
obtaining  the advances  being made by the Landlord to the Tenant in  accordance
with  the   provisions  of  the  Lease  (and,  in   particular,   the  foregoing
letter-agreement, which is part thereof):

     I.   Conditions on Advances.

          Prior to the first  advance,  and as a condition to the Tenant's right
to receive the first and any subsequent  advances  hereunder for  application to
the payments under the  Construction  Contract,  there shall be furnished to the
Landlord:

          a. Such evidence as the Landlord may reasonably  require that the Work
complies with all applicable federal, state, and local laws, rules, regulations,
codes,  requirements and ordinances applicable thereto. A building permit(s), as
required therefor, prior to commencement of the Work, and a final certificate(s)
of occupancy for the Buildings  for their  intended use, upon  completion of the
Work,  shall  satisfy  the  foregoing,  unless the  Project  Architect  notifies
Landlord and Tenant of additional legal requirements which need to be met.

          b. A  Certificate  from  the  Project  Architect  in the  form  of the
Architect's  Certificate attached hereto, and acceptance thereof by the Landlord
such acceptance not unreasonably to be withheld or delayed.

          c. A  Certificate  from  the  General  Contractor  in the  form of the
"Contractor's  Certificate"  attached hereto,  acceptance thereof by the Project
Architect,  and acceptance  thereof by Landlord such acceptance not unreasonably
to be withheld or delayed.

          d. A  Certificate  from  the  Tenant  in  the  form  of the  "Tenant's
Certificate"  attached  hereto,  and  acceptance  thereof by the  Landlord  such
acceptance not unreasonably to be withheld or delayed.

          e. A requisition from the General  Contractor,  and acceptance thereof
by the Project Architect,  which requisition shall, subject to the following, be
in normal and customary AIA form reasonably acceptable to the Landlord.





          f.  A  recordable  lien  waiver  in  normal  and  customary  AIA  form
reasonably  acceptable  to the  Landlord  from the General  Contractor  and each
subcontractor (and/or other party) performing labor or furnishing materials with
respect  to the  Work,  waiving  any and all  liens  attributable  to labor  and
materials  furnished by the General Contractor and such  subcontractors (and any
other such parties) in  connection  with the Work through the  requisition  date
(partial  or full and final,  as the case may be,  and which may be  conditional
upon receipt of a specified amount  corresponding to such labor and/or materials
furnished  through the  applicable  requisition  date).  Said lien waivers shall
likewise  contain the normal and  customary  indemnity  agreement of the General
Contractor  (or the  subcontractor,  as the case may be) as to any labor  and/or
materials  furnished  through the  requisition  date by such party or any of its
subcontractors  (and any other parties)  furnishing labor or materials to or for
it with respect to the Work through the requisition  date.  Notwithstanding  the
foregoing  lien waiver  requirement,  the  Landlord  shall not require that lien
waivers be provided by any  subcontractor  which is providing labor or materials
the total value of which does not exceed $10,000.00 with respect to the Work, as
certified to the Landlord by the General Contractor and the Architect; provided,
however,  that the  requirement for lien waivers shall not hereby be waived with
respect to subcontracts totalling more than $50,000.00 in aggregate value.

          g.  Such  evidence  as may  reasonably  be  required  by the  Landlord
confirming that there is then in full force and effect all insurance required to
be  carried  by  or  on  behalf  of  the  Tenant,  the  General  Contractor  and
sub-contractors,  relating to the performance of the Work, and that the Landlord
(and its  identified  mortgagee,  if any) is named as additional  insured on all
such policies (except for workers' compensation policies).

          h. A letter from the General Contractor and addressed to the Landlord,
stating that the General  Contractor will give written notice to the Landlord of
and will give the  Landlord  ten (10) days in which to remedy any default by the
Tenant under the Construction  Contract and that if the Landlord agrees with the
General   Contractor  to  assume  the   obligations  of  the  Tenant  under  the
Construction  Contract,  and the Construction Contract is assigned by the Tenant
to the  Landlord  or the  Lease  is  terminated,  the  General  Contractor  will
recognize  such   assumption  and  will  perform  its   obligations   under  the
Construction Contract for the benefit of the Landlord provided that the Landlord
shall




perform all  obligations of the Tenant  thereunder and requests that the General
Contractor complete the work thereunder for the Landlord.

          It is  understood  and agreed  that if the Lease  shall be  terminated
then, at the Landlord's  option, the Landlord may proceed as contemplated in the
preceding  paragraph  to  elect  to  assume  the  Tenant's  position  under  the
Construction Contract (but Landlord shall not be obligated so to do).

          In addition, each such advance hereunder shall be conditioned upon the
Tenant  having  paid all  charges,  if any,  then to have been paid  pursuant to
applicable  provisions  of the Lease and there then being no uncured  default in
any of the obligations of the Tenant thereunder.

     II.  Procedure for Making Advances.

          Advances  hereunder are to be made by the Landlord under the following
additional conditions and in accordance with the following procedure:

          a.   Advances may be requested no more often than monthly.  Five
(5) business days at least before the date upon which an advance
is requested, the Tenant or Project Architect will give notice
to the Landlord specifying the approximate amount of the advance
which will be desired.  Each such request for an advance
hereunder shall be made in writing to the Landlord and shall be
considered to have been made upon the satisfaction of all of the
applicable conditions, including receipt by the Landlord of the
certificates, etc. expressly required, as set forth in the
foregoing Part I of these Terms and Conditions. Each such
requested advance shall be made by the Landlord promptly upon
the satisfaction of said conditions applicable to the advance in
question (or the waiver by Landlord of any then unsatisfied
conditions), and in no event more than five (5) business days
after the satisfaction (or waiver) thereof.

          The  final  advance  hereunder  shall  also be  conditioned  upon  the
furnishing to Landlord of a final copy of the  "as-built"  plans  reflecting the
physical condition of the Buildings with the Work having been completed.

          b. In no event shall any advance  allocable to a payment on account of
the Construction  Contract exceed an amount equal to ninety percent (90%) of the
total value of work and materials theretofore completed,  approved and installed
in the Premises less the sum of all payments




theretofore made against construction. However, an advance may be made hereunder
for the  purpose of making  final  payment of any  balance to any  subcontractor
after  full and  final  completion  of the  Work or the  portion  thereof  being
performed by such subcontractor and delivery to the Landlord of such evidence as
may be reasonably  required to assure the Landlord that no claim may  thereafter
arise with respect to such subcontractor's work which might result in the filing
or attachment of a lien  affecting  the Premises or the  Landlord.  Further,  an
advance may be made for the purpose of making  final  payment of any balance due
to the General Contractor after full and final completion of the Work within the
scope of the Construction Contract and delivery to the Landlord of such evidence
as may be  reasonably  required  to  assure  the  Landlord  that  no  claim  may
thereafter   arise  on  account  of  the  General   Contractor's   work  or  any
subcontractor's  work as a result  of which  any lien may  arise  affecting  the
Premises or the Landlord.

     III. Miscellaneous.

          a. Without at any time waiving any of the Landlord's rights hereunder,
the Landlord shall have the right to make any advance  without  satisfaction  of
each and  every  condition  thereto;  and the  Landlord  shall  have the  right,
notwithstanding  a waiver  relative to the first or any other prior advance,  to
refuse to make any and all subsequent  advances  until each and every  condition
hereof (and any other applicable provisions of the Lease) have been satisfied.

          b. Advances shall be applied only to the  Construction  Contract costs
and  expenses  incurred  by the  Tenant in  connection  with the Work  which are
required to be paid out-of-pocket by the Tenant.

 *      *      *      *      *      *      *






ARCHITECT'S CERTIFICATE



TO:                            (The "Landlord")

RE:                            (The "Tenant")

     CONSTRUCTION OF

                               (The "Project")

     The  undersigned,   acting  as  the  Project   Architect   supervising  the
above-mentioned Project, does hereby certify to the Landlord as follows:

     1. I have examined the Requisition being submitted herewith to the Landlord
by the  Tenant,  which  Requisition  includes a request  for  payment  from (the
"General Contractor") constructing the above-referenced Project in the amount of
$ .

          I find that the amount of the  payment  so  requested  by the  General
Contractor  does not exceed (when added to the  Requisitions  heretofore paid to
the General Contractor) ninety percent (90%) of the value of labor and materials
incorporated at the Site of the Project (and of the value of materials  suitably
stored therein for which,  in my opinion,  reasonable  security  measures are in
effect).  Accordingly,  in my  opinion,  the General  Contractor  is entitled to
payment under its Construction Contract dated .

     2. I hereby further certify that, to the best of my knowledge,  information
and  belief   (based  upon  normal  and   customary   inquiries   and   periodic
observations),  all construction work in place conforms with the requirements of
the most recently applicable edition of plans and specifications  prepared by me
for such  construction and heretofore  submitted to and approved by the Landlord
and the Tenant,  and that all such work also complies with  applicable  laws and
regulations and Lease requirements of which I have any knowledge.

     3. I hereby further certify that, to the best of my knowledge,  information
and  belief   (based  upon  normal  and   customary   inquiries   and   periodic
observations),  the  lien  waivers  for  the  period  through  the  date  of the
Requisition  being  submitted  herewith,  which  lien  waivers  also  are  being
submitted herewith to the Landlord by the General Contractor, include lien




waivers from the General Contractor and from all  subcontractors  (and any other
parties)  furnishing  labor or materials in connection with the Work through the
date of said Requisition  (excepting those, if any, which are not required under
the  Lease  and  Construction  Contract  terms)  and  waiving  any and all liens
attributable thereto.

     This  Certificate  is given to induce the  Landlord to authorize an advance
relative to the Project,  and it is intended  that the Landlord  shall rely upon
the same.

     IN WITNESS WHEREOF,                                         has
caused this Certificate to be signed in its corporate name by
                                   , its
       , being thereunto duly authorized.

                              By:
                              Its
                            Hereunto duly authorized


                                          ARCHITECT

Dated:







CONTRACTOR'S CERTIFICATE

TO:                                      (The "Landlord")

RE:                                      (The "Tenant")

      CONSTRUCTION OF

                                         (The "Project")

     The undersigned, General Contractor for the Project, does
hereby certify to the Landlord as follows: --

1. Under date of , we entered into a  Construction  Contract (the  "Construction
Contract") with the Tenant for the construction of the Project. The Construction
Contract is still in full force and effect.  To the best knowledge and belief of
the  undersigned,  the  undersigned is not in default of any of its  obligations
legally  due to the  Tenant  under the  Construction  Contract  or of any of its
obligations to any subcontractors,  workmen or materialmen, for and with respect
to work and materials supplied through and including the date of our Requisition
dated , and submitted to the Landlord herewith.

2. That full payment has been made (or will from the  proceeds of the  requested
advance be made) of all  obligations  incurred  and which are legally due by the
undersigned to  subcontractors,  workmen and materialmen for and with respect to
all work and  materials  supplied  through  and  including  the date of our said
Requisition, except, as to subcontractors, for customary retainage not exceeding
ten percent (10%) of amounts earned by such subcontractors. Our said Requisition
submitted   herewith  includes  the  Application  and  Certificate  of  Payment,
completed  and  signed  on  behalf  of  the  undersigned  with  respect  to  the
Application  and  on  behalf  of  the  Project  Architect  with  respect  to the
Certificate;  and the  information  therein  contained  is  true,  complete  and
accurate.

3. Our said  Requisition  submitted  herewith  includes lien waivers (partial or
full,  as the case may be)  which  include  the  Landlord  as a named  releasee,
executed and  acknowledged  by the  undersigned  General  Contractor and, to the
extent required under the provisions of the Construction  Contract,  by each and
every  subcontractor (and any other party) furnishing labor or materials through
the  date of our  said  Requisition  with  respect  to the  Project  Work  being
performed




under the Construction  Contract,  and waiving any and all liens attributable to
labor and materials  furnished  through the date of our said  Requisition by all
such parties.  This  Certificate is given to induce the Landlord to authorize an
advance relative to the Project, and it is intended that the Landlord shall rely
upon the same. However,  nothing herein shall be construed to amend or otherwise
change or enlarge the terms and provisions of the  Construction  Contract itself
or any  rights  and  obligations  of  the  General  Contractor  and  the  Tenant
thereunder.

      IN WITNESS WHEREOF,                                     has
caused this Certificate to be signed in its corporate name by
                      , its                          , being
thereunto duly authorized.

                              By:
                              Its
                            Hereunto duly authorized

                                        GENERAL CONTRACTOR

Dated:








TENANT'S CERTIFICATE


TO:                                     (the "Landlord")

RE:  CONSTRUCTION OF                    (the "Project")

     The undersigned, Tenant under the lease (the "Lease") dated as of March 14,
1994, between the Landlord and the undersigned Tenant,  covering the property on
which  the  above-noted  construction  Project  is  being  conducted  under  the
Construction Contract (the "Construction  Contract") between the undersigned and
(the "General Contractor"), does hereby certify to the Landlord as follows: --

1. The undersigned  hereby requests an advance under the terms and provisions of
the  Lease  relating  to the  Project  and the Work (as that term is used in the
Lease) in an amount equal to the amount of the General Contractor's  Requisition
dated and being submitted to the Landlord together herewith.

2. The Tenant is not in default of any of its  obligations  under the provisions
of the Lease and  asserts no default on the part of the  Landlord  of any of its
obligations under the provisions of the Lease.

3. The balance requested  hereinabove to be advanced hereunder on account of the
Tenant's Work,  together with funds otherwise  currently available to the Tenant
(including,  without  limitation,  Landlord's  Inducement  Payment under Section
13.26 of the Lease),  are  sufficient  for the payment of all related direct and
indirect  costs  for the  completion  of the  portion  of the Work  constituting
Tenant's  Work  in  accordance  with  all of the  terms  and  provisions  of the
Construction  Contract and the Lease;  all funds advanced  heretofore  have been
used and all funds to be advanced in accordance  with this request shall be used
to make payments due under the Construction Contract.

4. The Construction  Contract is still in full force and effect and, to the best
of the  undersigned's  knowledge,  information and belief (based upon normal and
customary inquiries and observations),  the General Contractor is not in default
of any of its obligations to the undersigned thereunder or to any subcontractor,
workman  or  materialman  for and with  respect to work and  materials  supplied
through and including  the date of the General  Contractor's  Requisition  being
submitted to the Landlord herewith. Further, the




Construction  Contract has not been modified or amended in any respect whatever,
including,  without limitation, the contract price, and there has been no change
order except as disclosed in the Contractor's Certificate being submitted to the
Landlord herewith (if any).

5. In all other respects,  to the best of our knowledge,  information and belief
(based  upon  normal  and  customary  inquiries  and  observation):  all  of the
certifications  contained in the  Contractor's  Certificate  and the Architect's
Certificate  being  submitted  herewith and  relating to the within  request for
advance, are true, complete and accurate;  and all of the conditions on advances
set forth in the applicable  provisions of the letter-agreement  comprising part
of the Lease have been  satisfied  with respect to the advance  being  requested
herein.

     This  Certificate  is given  to  induce  the  Landlord  to make an  advance
relative to the Project,  and it is intended  that the Landlord  shall rely upon
the same.

     IN WITNESS WHEREOF,                                      has
caused this Certificate to be signed in its corporate name by
                     , its                     , being hereunto
duly authorized.


                                   By:
                                   Its
                                   Hereunto duly authorized

                                     TENANT



Dated: