Document:

<PAGE>   1
                                                                EXHIBIT 10.1(ii)

                       GUARANTY AND COMPENSATION AGREEMENT

      THIS GUARANTY AND COMPENSATION AGREEMENT ("Guaranty"), made as of this
23rd day of March 2001, by Health Management Systems, Inc. (hereinafter referred
to as the "Guarantor") having an address at 401 Park Avenue South, New York,
New York 10016, (hereinafter referred to as the "Building") and 401 Park Avenue
South Associates LLC having an address at 30 West 26th Street, New York, New
York 10010 (hereinafter referred to as the "Lessor").

                              W I T N E S S E T H:

                    WHEREAS, Guarantor is the tenant under (i) a lease dated
September 24, 1981 by and between Guarantor and Lessor, as Landlord, for the
entire 4th floor in the Building, (ii) a lease dated September 24, 1982 by and
between Guarantor and Lessor, as Landlord, for the entire 8th, 9th, 10th and a
portion of the 11th floor in the Building, such leases having been amended from
time to time (hereinafter referred to as the "HMS Leases"); and

                    WHEREAS, Digital Convergence Corporation (hereinafter
referred to as "Lessee"), is a tenant under a certain proposed lease dated
March 23, 2001 (hereinafter the "Lease"), between Lessor and Lessee, as Landlord
and Tenant respectively for the entire 12th floor in the Building (the "Demised
Premises") for a term of seven (7) years; and

                    WHEREAS, Guarantor and Lessor have entered into a lease (the
"HMS 12th Floor Lease") for the Demised Premises the term of which commences on
the expiration of the Lease; and

                    WHEREAS, Lessor is unwilling to enter into the Lease unless
Guarantor executes and delivers this Guaranty; and

                    WHEREAS, as an inducement for Guarantor to enter into this
Guaranty, Lessor will make certain "Guaranty Payments" to Guarantor, as such
term is defined below.

                    NOW, THEREFORE, for $1.00 and other good and valuable
consideration, the receipt and sufficiency of which are hereby acknowledged,
Guarantor agrees with Lessor as follows:

                    1. A) Guarantor unconditionally guarantees Lessee's
obligation to occupy the premises demised by the Lease (the "Demised Premises")
for the entire Lease term, it being expressly understood and agreed between
Guarantor and Lessor that (i) except as specifically provided below, Lessor
shall look solely to Lessee for recovery of any monetary claim or default as a
result of Lessee's failure to comply with the terms of the Lease, to include but
not limited to the obligation to pay rent and additional rent and the costs
associated with the prosecution of any claim Lessor may have against Lessee,
(ii) Guarantor unconditionally guarantees to Lessor that in the event that (a)
Lessor shall terminate the Lease prior to the

                                     Page 1
<PAGE>   2
scheduled expiration date for any reason, (b) Lessor shall come into possession
of the Demised Premises before the scheduled expiration of the Lease as a result
of Lessee's acts, voluntary or otherwise, or (c) the Lease by its term shall
expire, then in any of these events, Guarantor shall take possession of the
Demised Premises on the tenth (10th) business day following the date of Lessor's
notice to Guarantor that the Demised Premises are vacant. Guarantor's possession
and occupancy of the Demised Premises shall be in accordance with the terms and
conditions of the HMS 12th Floor Lease, and (iii) Lessee's obligations under
this Guaranty and Compensation Agreement shall terminate upon the expiration or
the early termination of the Lease.
                             B) In consideration of Guarantor (i) making this
Guaranty and (ii) entering into the HMS 12th Floor Lease, Lessor shall pay to
Guarantor the following amounts on the dates indicated (hereinabove and
hereinafter referred to as the "Guaranty Payments"):

<TABLE>
<CAPTION>
---------------------------------------------
Guaranty Payment        Guaranty
                      Payment Date
---------------------------------------------
<S>                 <C>
$120,512.22         April 1, 2002
---------------------------------------------
  42,341.65         July 1, 2002
---------------------------------------------
  31,756.24         October 1, 2002
---------------------------------------------
  31,011.65         January 1, 2003
---------------------------------------------
  30,723.17         April 1, 2003
---------------------------------------------
  33,124.59         July 1, 2003
---------------------------------------------
  33,124.59         October 1, 2003
---------------------------------------------
  32,353.94         January 1, 2004
---------------------------------------------
  32,055.36         April 1, 2004
---------------------------------------------
  34,540.82         July 1, 2004
---------------------------------------------
  34,540.82         October 1, 2004
---------------------------------------------
  33,743.20         January 1, 2005
---------------------------------------------
  33,434.18         April 1, 2005
---------------------------------------------
  36,006.64         July 1, 2005
---------------------------------------------
  36,006.64         October 1, 2005
---------------------------------------------
  35,181.09         January 1, 2006
---------------------------------------------
  34,861.26         April 1, 2006
---------------------------------------------
  37,523.76         July 1, 2006
---------------------------------------------
  37,523.76         October 1, 2006
---------------------------------------------
  36,669.32         January 1, 2007
---------------------------------------------
  36,338.29         April 1, 2007
---------------------------------------------
  39,093.95         July 1, 2007
---------------------------------------------
  39,093.95         October 1, 2007
---------------------------------------------
  38,209.61         January 1, 2008
---------------------------------------------
  24,293.95         April 1, 2008
---------------------------------------------
</TABLE>

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<PAGE>   3
            C) Notwithstanding anything to the contrary herein contained,
Lessor's obligation to make the Guaranty Payments shall (i) terminate in all
respects upon the occurrence of any of the following events; a) the Lease is
terminated, whereupon the Guaranty Payment next due will be prorated to the date
of termination of the Lease; b) the HMS leases are terminated; (c) in the event
that for any reason (whether voluntary or involuntary) Guarantor shall itself
occupy less than 50% of the space in the Building that Guarantor occupies as of
the date of this Guaranty and Compensation Agreement (which Guarantor and Lessor
agree for purposes hereof, as of the date hereof Guarantor occupies
approximately 91,800 rentable square feet in the Building) then in such event
the Guaranty Payments shall terminate and shall be prorated to the date of such
event, or d) in the event Guarantor shall default in its obligations hereunder,
and (ii) (x) the occurrence of a monetary default on the part of Lessee pursuant
to the terms of the Lease or a non-monetary material breach of the Lease occurs,
whereupon Guaranty Payments shall abate until such default is cured to Lessor's
reasonable satisfaction; or (y) upon the event of a default of Guarantor
pursuant to the terms of the HMS Leases, whereupon the Guaranty Payments shall
abate until such default is cured. Any Guaranty Payment abated pursuant to the
terms of this Guaranty and Compensation Agreement shall be deemed waived.

      2. Landlord shall have no obligation to perform any work or do anything to
prepare the Demised Premises for Guarantor's occupancy upon the expiration or
sooner termination of the Leases except (i) as may be required by the HMS 12th
Floor Lease, and (ii) Lessor shall deliver the Demised Premises in broom clean
condition.

      3. Any act of Lessor, or the successors or assigns of Lessor, consisting
of a waiver of any of the terms or conditions of the Lease, or the giving of any
consent to any matter or thing relating to the Lease, or the granting of any
indulgences or extensions of time to Lessee, may be done without the consent of
Guarantor, and without releasing any obligations of Guarantor hereunder.

      4. Lessor shall give written notice to Guarantor in the event of a default
by Lessee under the Lease when such default shall continue beyond any notice,
grace and cure periods that are provided in the Lease or which may be required
by law. Lessor's notice may be delivered to Guarantor at Lessor's option (i) via
facsimile and confirmed by certified mail or (ii) via a reputable national
overnight courier at the address following or at such other address Guarantor
may designate in writing to Lessor from time to time:

                      Health Management Systems, Inc.
                      401 Park Avenue South, 4th Floor
                      New York, New York 10016
                      Attn. Mr. Vincent C. Hartley

Lessor and Guarantor agree that Lessor's notices to Guarantor as herein above
provided shall be given as an accommodation to Guarantor and any failure to
deliver such notice shall not constitute a default of Lessor's obligations under
this Guaranty and Compensation Agreement.

                                     Page 3
<PAGE>   4
      5. Guarantor agrees that if judgment shall be entered against Guarantor in
any action, suit or proceeding to enforce this Guaranty, Guarantor will
reimburse Lessor for all reasonable costs and expenses incurred by Lessor in
connection therewith, including, without limitation, reasonable counsel fees.

      6. Guarantor and Lessor each waive trial by jury of any and all issues
arising in any action, suit or proceeding to which Lessor and Guarantor may be
parties upon, under or connected with this Guaranty or any of its provisions,
directly or indirectly.

      7. The obligations of Guarantor under this Guaranty shall be absolute and
unconditional, shall not be subject to any counterclaim, set-off, deduction or
defense based upon claim Guarantor may have against Lessor and shall remain in
full force and effect without regard to, and shall not be released, discharged
or terminated or in any other way affected by, any circumstance or condition
(whether or not Guarantor shall have any knowledge or notice thereof),
including, without limitation: (a) any amendment, modification, extension or
renewal of the Lease (except that the liability of Guarantor hereunder shall be
deemed to apply to the Lease as so amended, modified, extended or renewed);
(b))any exercise or non-exercise by Lessor of any right, power or remedy under
or in respect of the Lease, or any waiver, consent, indulgence or other action,
inaction or omission under or in respect of the Lease; (c) any assignment, sale,
sublease, surrender, forfeiture, re-entry, reletting or other transfer in
respect of the Lease or any or all of or any interest in the building of which
the Demised Premises are a part by Lessor or Lessee; (d) any bankruptcy,
insolvency, reorganization, composition, adjustment, dissolution, liquidation or
other like proceeding involving or affecting Lessee or Lessor or their
properties or creditors, or any action taken with respect to the Lease
(including the rejection or disaffirmance of the Lease in any such proceeding),
by any trustee or receiver of Lessor or Lessee, or by any court, in any such
proceeding; or (e) any limitation on the liability or obligations of Lessee
under the Lease, or any invalidity or unenforceability, in whole or in part, of
any obligation of Lessee under the Lease or of any term of the Lease.

      8. Guarantor at its expense will execute, acknowledge and deliver all such
instruments and take all such action as Lessor from time to time may reasonably
request for the assuring to Lessor the full benefits intended to be created by
this Guaranty.

      9. This Guaranty shall continue in full force and effect throughout the
term of the Lease.

      10. Any notice or other communication hereunder shall be in writing and
shall be deemed duly served if mailed by registered or certified mail in any
United States post office station or letter box, addressed if to Guarantor to it
at the address of Guarantor set forth herein or such other address as Guarantor
shall have last designated by notice to Lessor, and addressed if to Lessor to it
at 30 West 26th Street, 8th Floor, New York, New York 10010 or such other
address as Lessor shall have last designated by notice to Guarantor.

                                     Page 4
<PAGE>   5
      11. This Guaranty shall inure to the benefit of and may be enforced by
Lessor, its successors or assigns, and shall be binding upon and be enforceable
against Guarantor and its successor and assigns.

      12. This Guaranty may not be changed, modified, discharged or terminated
orally or in any manner other than by an agreement in writing signed by
Guarantor and Lessor, or their respective successors and assigns.

      13. This Guaranty and any issues arising hereunder shall be governed by
the law of New York. Guarantor agrees to submit to personal jurisdiction in the
State of New York in any action or proceeding arising out of this Guaranty and,
in furtherance of such agreement. Guarantor hereby agrees and consents that
without limiting other methods of obtaining jurisdiction, personal jurisdiction
over Guarantor in any such action or proceeding may be obtained within or
without the jurisdiction of any court located in New York and that any process
or notice of motion or other application to any such court in connection with
any such action or proceeding may be served upon Guarantor by registered mail to
or by personal service at the last known address of the undersigned, whether
such address be within or without the jurisdiction of any such court.

      14. The person executing this Guaranty on behalf of Guarantor represents
that he is duly authorized to enter into this Guaranty and to enter into the HMS
12th Floor Lease and thereby bind Health Management Systems, Inc. to all of the
terms and conditions contained herein and in the HMS 12th Floor Lease.

      IN WITNESS WHEREOF, the parties have duly executed this GUARANTY AND
COMPENSATION AGREEMENT on the day and year first above written.

                                 FOR GUARANTOR:
                                 HEALTH MANAGEMENT SYSTEMS, INC.

                                 By: /s/ Vincent C. Hartley
                                    --------------------------------------------
                                      Vincent C. Hartley
                                 ITS: Vice-President

                                 FOR LESSOR:
                                 401 PARK  AVENUE ASSOCIATES LLC
                                 By: STEPHEN J. MERINGOFF, MEMBER

                                 By: /s/ Farrel Virga
                                    --------------------------------------------
                                      FARREL VIRGA
                                 ITS: ATTORNEY-IN-FACT

                                     Page 5
<PAGE>   6
STATE OF NEW YORK        )
                 :ss.:
COUNTY OF NEW YORK       )

On the 23 of March, 2001 before me personally came Vincent C. Hartley, to me
known to be the individual described in and who executed the foregoing
instrument, and acknowledged that he executed the same.

                                  /s/  Edith Hamilton
                                  Notary Public

                                                [Edith Miszti Hamilton
                                           NOTARY PUBLIC, State of New York
                                                     No 4905281
                                              Qualified in Nassau County
                                          Commission Expires Sept. 14, 2001]

STATE OF NEW YORK        )
                 :ss.:
COUNTY OF NEW YORK       )

     On the 23 of March, 2001 before me personally came Farrel Virga, to me
known to be the individual described in and who executed the foregoing
instrument, and acknowledged that he executed the same.

                                  /s/  Edith Hamilton
                                  Notary Public

                                                [Edith Miszti Hamilton
                                           NOTARY PUBLIC, State of New York
                                                    No 4905281
                                              Qualified in Nassau County
                                          Commission Expires Sept. 14, 2001]

                                     Page 6<PAGE>   1
                                                               EXHIBIT 10.1(iii)

                           STANDARD FORM OF LOFT LEASE
                     THE REAL ESTATE BOARD OF NEW YORK, INC.

         Agreement of Lease, made as of this 23rd day of March 2001, between 401
Park Avenue South Associates LLC, a New York limited liability company having an
office at 30 West 26th Street, New York, New York 11010 party of the first part,
hereinafter referred to as LANDLORD, and Health Management Systems, Inc, a New
York corporation having an office at 401 Park Avenue South, 4th Floor, New York,
New York 10016,

party of the second part, hereinafter referred to as TENANT,

         Witnesseth: Landlord hereby leases to Tenant and Tenant hereby hires
from Landlord entire twelfth floor of the Building as shown on Exhibit A
attached hereto in the building known as 401 Park Avenue South (the "Building")
in the Borough of Manhattan, City of New York, for the term of to be determined
to commence on the Commencement Date (as hereinafter defined) (See next page
1A), and to end on the 31st day of May, 2013, both dates inclusive, at an annual
rental of $157,805 per annum

which Tenant agrees to pay in lawful money of the United States which shall be
legal tender in payment of all debts and dues, public and private, at the time
of payment, in equal monthly installments in advance on the first day of each
month during said term, at the office of Landlord or such other place as
Landlord may designate, without any set off or deduction whatsoever, except that
Tenant shall pay the first monthly installment, coming due pursuant to the terms
of this lease after any rent abatement period on the execution hereof (unless
this lease be a renewal).

         In the event that, at the commencement of the term of this lease, or
thereafter, Tenant shall be in default in the payment of rent to Landlord
pursuant to the terms of another lease with Landlord or with Landlord's
predecessor in interest, Landlord may at Landlord's option and without notice to
Tenant add the amount of such arrearages to any monthly installment of rent
payable hereunder and the same shall be payable to Landlord as additional rent.

         The parties hereto, for themselves, their heirs, distributees,
executors, administrators, legal representatives, successors and assigns, hereby
covenant as follows:

RENT:

         1. Tenant shall pay the rent as above and as hereinafter provided.

OCCUPANCY:

         2. Tenant shall use and occupy, demised premises for executive and
general offices for financial consultants and data processing and for no other
purpose.

ALTERATIONS:

         3. Tenant shall make no changes in or to the demised premises of any
nature without Landlord's prior written consent. Subject to the prior written
consent of Landlord, and to the provisions of this article, Tenant, at Tenant's
expense, may make alterations, installations, additions or improvements which
are nonstructural and which do not affect utility services or plumbing and
electrical lines, in or to the interior of the demised premises using
contractors or mechanics first approved in each instance by Landlord. All
fixtures and all paneling, partitions, railings and like installations,
installed in the premises any time, either by Tenant or by Landlord on Tenant's
behalf, shall, upon installation, become the property of Landlord and shall
remain upon and be surrendered with the demised premises. Nothing in this
Article shall be construed to give Landlord title to or prevent Tenant's removal
of trade fixtures, moveable office furniture and equipment, but upon removal or
any such from the premises or upon removal of other installations as may be
required by Landlord, Tenant shall immediately and at its expense repair and
restore the premises to the condition existing prior to installation and repair
any damage to the demised premises or the building due to such removal. All
property permitted or required to be removed by Tenant at the end of the term
remaining in the premises after Tenant's removal shall be deemed abandoned and
may, at the election of Landlord, either be
<PAGE>   2

                                    Page 1A

The Commencement Date shall be the earlier to occur of (i) March 31, 2008, the
scheduled expiration of a lease by and between Landlord and Digital Convergence
Corporation, as Tenant, for the Demised Premises (hereinafter the "Digital
Lease"), or (ii) in the event of the early termination of the Digital Lease,
ten (10) business days following Landlord's written notice that the Digital
Lease has terminated. Notwithstanding the foregoing sentence, the commencement
of this Lease shall be subject to all the terms and conditions of that certain
Guaranty and Compensation Agreement of even date herewith by and between
Landlord, as Lessor and Tenant, as Guarantor.
<PAGE>   3
retained as Landlord's property or removed from the premises by Landlord, at
Tenant's expense. Tenant shall, before making any alterations, additions,
installations or improvements, at its expense, obtain all permits, approval and
certificates required by any governmental or quasi-governmental bodies and (upon
completion) certificates of final approval thereof and shall deliver promptly
duplicates of all such permits, approvals and certificates to Landlord an Tenant
agrees to carry and will cause Tenant's contractors and sub-contractors to carry
such workman's compensation, general liability, personal and property damage
insurance as Landlord may require. If any mechanic's lien is filed against the
demised premises, or the building of which the same forms a part for work
claimed to have been done for, or materials furnished to, Tenant, whether or not
done pursuant to this article, the same shall be discharged by Tenant within ten
days thereafter, at Tenant's expense, by payment or filing the bond required by
law.

REPAIRS:

         4. Landlord shall maintain and repair the public portions of the
building, diligently including, without limitation, the roof, both exterior and
interior. Tenant shall, throughout the term of this lease, take good care of the
demised premises and the fixtures and appurtenances therein and at Tenant's sole
cost and expense make all non-structural repairs thereto as and when needed to
preserve them in good working order and condition, reasonable wear and tear,
obsolescence and damage from the elements, fire or other casualty excepted.
Notwithstanding the foregoing, all damage or injury to the demised premises or
to any other part of the building, or to its fixtures, equipment or
appurtenances, whether requiring structural or non-structural repairs, caused by
or resulting from the carelessness, omission, neglect or improper conduct of
Tenant, Tenant's servants, employees, invitees, or licensees, shall be repaired
promptly by Tenant at its sole cost and expense, to the satisfaction of Landlord
reasonably exercised. Tenant shall also repair all damage to the building and
the demised premises caused by the moving of Tenant's fixtures, furniture or
equipment. All the aforesaid repairs shall be of quality or class equal to the
original work or construction. If Tenant fails, after ten days notice, to
proceed with due diligence to make repairs required to be made by Tenant, the
same may be made by the Landlord at the expense of Tenant and the expenses
thereof incurred by Landlord shall be collectible, as additional rent, after
rendition of a bill or statement therefor. If the demised premises be or become
infested with vermin, Tenant shall, at its expense, cause the same to be
exterminated from time to time to the satisfaction of Landlord. Tenant shall
give Landlord prompt notice of any defective condition in any plumbing, heating
system or electrical lines located in, servicing or passing through the demised
premises and following such notice, Landlord shall remedy the condition with due
diligence, but at the expense of Tenant if repairs are necessitated by damage or
injury attributable to Tenant, Tenant's servants, agents, employees, invitees or
licensees as aforesaid. Except as specifically provided in Article 9 or
elsewhere in this lease, there shall be no allowance to the Tenant for a
diminution of rental value and no liability on the part of Landlord by reason of
inconvenience, annoyance or injury to business arising from Landlord, Tenant or
others making or failing to make any repairs, alterations, additions or
improvements in or to any portion or the building or the demised premises or in
and to the fixtures, appurtenances or equipment thereof. The provisions of this
Article 4 with respect to the making of repairs shall not apply in the case of
fire or other casualty which are dealt with in Article 9 hereof shall apply.

WINDOW CLEANING:

         5. Tenant will not clean nor require, permit, suffer or allow any
window in the demised premises to be cleaned from the outside in violation of
Section 202 of the New York State Labor Law or any other applicable law or of
the Rules of the Board of Standards and Appeals, or of any other Board or body
having or asserting jurisdiction.

REQUIREMENTS OF LAW, FIRE INSURANCE:

         6. Prior to the commencement of the lease term, if Tenant is then in
possession, and at all times thereafter Tenant shall, at Tenant's sole cost and
expense, promptly comply with all present and future laws, orders and
regulations of all state, federal, municipal and local governments, departments,
commissions and boards and any direction of any public officer pursuant to law,
and all orders, rules and regulations of the New York Board of Fire
Underwriters, or any similar body which shall impose any violation, order or
duty upon Landlord or Tenant with respect to the demised premises, whether or
not arising out or Tenant's use or manner of use thereof, or, with respect to
the building, if arising out of Tenant's use or manner of use of the premises of
the building (including the use
<PAGE>   4
permitted under the lease). Except as provided in Article 29 hereof, nothing
herein shall require Tenant to make structural repairs or alterations, unless
Tenant has, by its manner of use of the demised premises or method of operation
therein, violated any such laws, ordinances, orders, rules, regulations or
requirements with respect thereto. Tenant may, after securing Landlord to
Landlord's satisfaction against all damages, interest, penalties and expenses,
including but not limited to reasonable attorneys' fees, by cash deposit or by
surety bond in an amount and in a company satisfactory to Landlord, contest and
appeal any such laws, ordinances, orders, rules, regulations or requirements
provided same is done with all reasonable promptness and provided such appeal
shall not subject Landlord to prosecution for a criminal offence or constitute a
default under any lease or mortgage under which Landlord may be obligated, or
cause the demised premises or any part thereof to be condemned or vacated.
Tenant shall not do or permit any act or thing to be done in or to the demised
premises which is contrary to law, or which will invalidate or be in conflict
with public liability, fire or other policies of insurance at any time carried
by or for the benefit of Landlord with respect to the demised premises or the
building of which the demised premises form a part, or which shall or might
subject the Landlord to any liability or responsibility to any person for
property damage, nor shall Tenant keep anything in the demised premises except
as now or hereafter permitted by the Fire Department, Board of Fire
Underwriters, Fire Insurance Rating Organization or other authority having
jurisdiction, and then only in such manner and such quantity so as not to
increase the rate for fire insurance applicable to the building, nor use the
premises in a manner which will increase the insurance rate for the building or
any property located therein over that in effect prior to the commencement of
Tenant's occupancy. Tenant shall pay all costs, expenses, penalties or damages,
which may be imposed upon Landlord by reason of Tenant's failure to comply with
this article and if by reason of such failure the fire insurance rate shall, at
the beginning of this lease or at any time thereafter, be higher than it
otherwise would be, then Tenant shall reimburse Landlord, as additional rent
hereunder, for that portion of all fire insurance premiums thereafter paid by
Landlord which shall have been charged because of such failure by Tenant, and
shall make such reimbursement upon the first day of the month following such
outlay by Landlord.. In any action or proceeding wherein Landlord and Tenant are
parties, a schedule or "make-up" of rate for the building or demised premises
issued by the New York Fire Insurance Exchange, or other body making fire
insurance rates applicable to said premises shall be conclusive evidence of the
facts therein stated and of the several items and charges in the fire insurance
rates then applicable to said premises. Tenant shall not place a load upon any
floor of the demised premises exceeding the floor load per square foot area
which it was designed to carry and which is allowed by law. Landlord reserves
the right to prescribe the weight and position of all safes, extra-heavy
business machines and mechanical equipment. Such installations shall be placed
and maintained by Tenant, at Tenant's expense, in settings sufficient, in
Landlord's judgement, to absorb and prevent unreasonable vibration, noise and
annoyance.

SUBORDINATION:

         7. This lease is subject and subordinate to all ground or underlying,
leases and to all mortgages which may now or hereafter affect such leases or the
real property of which demised premises are a part and to all renewals,
modifications, consolidations, replacements and extensions of any such
underlying leases and mortgages. This clause shall be self-operative and no
further instrument of subordination shall be required by any ground or
underlying lessor or by any mortgagee, affecting any lease or the real property
of which the demised premises are a part. In confirmation of such subordination,
Tenant shall from time to time execute promptly any certificate that Landlord
may request.

PROPERTY-LOSS, DAMAGE, REIMBURSEMENT, INDEMNITY:

         8. Landlord or its agents shall not be liable for any damage to
property of Tenant or of others entrusted to employees of the building, nor for
loss of or damage to any property of Tenant by theft or otherwise, nor for any
injury or damage to persons or property resulting from any cause of whatsoever
nature, unless caused by or due to the negligence of Landlord, its agents,
servants or employees; nor shall Landlord or its agents be liable for any damage
caused by other tenants or persons in, upon or about said building or caused by
operations in construction of any private, public or quasi public work. If at
any time any windows of the demised premises are temporarily closed, darkened or
bricked up (or permanently closed, darkened or bricked up, if required by law)
for any reason whatsoever including, but not limited to, Landlord's own acts,
Landlord shall not be liable for any damage Tenant may sustain thereby and
Tenant shall not be entitled to any compensation therefor nor abatement or
diminution of
<PAGE>   5
rent nor shall the same release Tenant from its obligations hereunder nor
constitute an eviction. Tenant shall not move any safe, heavy machinery, heavy
equipment, bulky matter or fixtures into or out of the building without
Landlord's prior written consent. If such safe, heavy machinery, heavy
equipment, bulky matter or fixtures requires special handling, all work in
connection therewith shall comply with the Administrative Code of the City of
New York and all other laws and regulations applicable thereto and shall be done
during such hours as Landlord shall designate. Tenant shall indemnify and save
harmless Landlord against and from all liabilities, obligations, damages,
penalties, claims, costs and expenses for which Landlord shall not be reimbursed
by insurance, including reasonable attorney's fees, paid; suffered or incurred
as a result of any breach by Tenant, Tenant's agents, contractors, employees,
invitees, or licensees, of any covenant or condition of this lease, or the
carelessness, negligence or improper conduct of the Tenant, Tenant's agents,
contractors, employees, invitees or licensees. Tenant's liability under this
lease extends to the acts and omissions of any sub-tenant, and any agent,
contractor, employee, invitee or licensee of any subtenant In case any action or
proceeding is brought against Landlord by reason of any such claim, Tenant, upon
written notice from Landlord, will, at Tenant's expense, resist or defend such
action or proceeding by counsel approved by Landlord in writing, such approval
not to be unreasonably withheld.

DESTRUCTION, FIRE AND OTHER CASUALTY:

         9. (a) If the demised premises or any part thereof shall be damaged by
fire or other casualty, Tenant shall give immediate notice thereof to Landlord
and this lease shall continue in full force and effect except as hereinafter set
forth. (b) If the demised premises are partially damaged or rendered partially
unusable by fire or other casualty, the damages thereto shall be repaired by and
at the expense of Landlord and the rent, until such repair shall be
substantially completed, shall be apportioned from the day following the
casualty according to the part of the premises which is usable. (c) If the
demised premises are totally damaged or rendered wholly unusable or inaccessible
by fire or other casualty, then the rent shall be proportionately paid up to the
time of the casualty and thenceforth shall cease until the date when the
premises shall have been repaired and restored by, subject to Landlord's right
to elect not to restore the same as hereinafter provided. (d) If the demised
premises are rendered wholly unusable or (whether or not the demised premises
pro damaged in whole or in part) if the building shall be so damaged that
Landlord shall decide to demolish it or to rebuild it, then, in any of such
events, Landlord may elect to terminate this lease by written notice to Tenant,
given within 90 days after such fire or casualty specifying a date for the
expiration of the lease, which date shall not be more than 60 days after the
giving of such notice, and upon the date specified in such notice the term of
this lease shall expire as fully and completely as if such date were the date
set forth above for the termination of this lease and Tenant shall forthwith
quit, surrender and vacate the premises without prejudice however, to Landlord's
rights and remedies against Tenant under the lease provisions in effect prior to
such termination, and any rent owing shall be paid up to such date and any
payments of rent made by Tenant which were on account of any period subsequent
to such date shall be returned to Tenant. Unless Landlord shall serve a
termination notice as provided for herein, Landlord shall make the repairs and
restorations under the conditions of (b) and (c) hereof, with all reasonable
expedition, subject to delays due to adjustment of insurance claims, labor
troubles and causes beyond Landlord's control. After any such casualty, Tenant
shall cooperate with Landlord's restoration by removing from the premises as
promptly as reasonably possible, all of Tenant's salvageable inventory and
movable equipment, furniture, and other property. Tenant's liability for rent
shall resume five (5) days after written notice from Landlord that the premises
are substantially ready for Tenant's occupancy. (e) Nothing contained
hereinabove shall relieve Tenant from liability that may exist as a result of
damage from fire or other casualty. Notwithstanding the foregoing, each party
shall look first to any insurance in its favor before making any claim against
the other party for recovery for loss or damage resulting from fire or other
casualty, and to the extent that such insurance is in force and collectible and
to the extent permitted by law, Landlord and Tenant each hereby releases and
waives all right of recovery against the other or any one claiming through or
under each of them by way of subrogation or otherwise. The foregoing release and
waiver shall be in force only if both releasors' insurance policies contain a
clause providing that such a release or waiver shall not invalidate the
insurance and also, provided that such a policy can be obtained without
additional premiums. Tenant acknowledges that Landlord will not carry insurance
on Tenant's furniture and or furnishings or any fixtures or equipment,
improvements, or appurtenances removable by Tenant and agrees that Landlord will
not be obligated to repair any damage thereto or replace the same. (f) Tenant
hereby waives the provisions of Section 227 of the Real Property Law and agrees
that the provisions of this article shall govern and control in lieu thereof.
<PAGE>   6
EMINENT DOMAIN:

         10. If the whole or any part of the demised premises shall be acquired
or condemned by Eminent Domain for any public or quasi public use or purpose,
then and in that event, the term of this lease shall cease and terminate from
the date of title vesting in such proceeding and Tenant shall have no claim for
the value of any unexpired term of said lease.

ASSIGNMENT, MORTGAGE, ETC.:

         11. Tenant, for itself, its heirs, distributees, executors,
administrators, legal representatives, successors and assigns; expressly
covenants that it shall not assign, mortgage or encumber this agreement, nor
underlet or suffer or permit the demised premises or any part thereof to be used
by others, without the prior written consent of Landlord in each instance. If
this lease be assigned, or if the demised premises or any part thereof be
underlet or occupied by anybody other than Tenant, Landlord may, after default
by Tenant, collect rent from the assignee, under-tenant or occupant, and apply
the net amount collected to the rent herein reserved, but no such assignment,
underletting, occupancy or collection shall be deemed a waiver of this covenant,
or the acceptance of the assignee, under- tenant or occupant as tenant, or a
release of Tenant from the further performance by Tenant of covenants on the
part of Tenant' herein contained. The consent by Landlord to an assignment or
underletting shall not in any way be construed to relieve Tenant from obtaining
the express consent in writing of Landlord to any further assignment or
underletting.

ELECTRIC CURRENT:

         12. Rates and conditions in respect to submetering or rent inclusion,
as the case may be, to be added in RIDER attached hereto. Tenant covenants and
agrees that at all times its use of electric current shall not exceed the
capacity of existing feeders to the building or the risers or wiring
installation and Tenant may not use any electrical equipment which, in
Landlord's opinion, reasonably exercised, will overload such installations or
interfere with the use thereof by other tenants of the building. The change at
any time of the character of electric service shall in no way make Landlord
liable or responsible to Tenant, for any loss, damages or expenses which Tenant
may sustain.

ACCESS TO PREMISES:

         13. Landlord or Landlord's agents shall have the right (but shall not
be obligated) to enter the demised premises in any emergency at any time, and at
other reasonable times, to examine the same and to make such repairs,
replacements and improvements as Landlord may deem necessary and reasonably
desirable to the demised premises or any other portion of the building or which
Landlord may elect to perform in the premises after Tenant's failure to make
repairs or perform any work which Tenant is obligated to perform under this
lease, or for the purpose of complying with laws, regulations and other
directions of governmental authorities. Tenant shall permit Landlord to use and
maintain and replace pipes and conduits in and through the demised premises and
to erect new pipes and conduits therein. Landlord may, during the progress of
any work in the demised premises, take all necessary materials and equipment
into said premises without the same constituting an eviction nor shall the
Tenant be entitled to any abatement of rent while such work is in progress nor
to any damages by reason of loss or interruption of business or otherwise.
Throughout the term hereof Landlord shall have the right to enter the demised
premises at reasonable hours for the purpose of showing the same to prospective
purchasers or mortgagees of the building, and during the last six months of the
term for the purpose of showing the same to prospective tenants and may, during
said six months period; place upon the premises the usual notices "To Let" and
"For Sale" which notices Tenant shall permit to remain thereon without
molestation. If Tenant is not present to open and permit an entry into the
premises, Landlord or Landlord's agents may enter the same whenever such entry
may be necessary or permissible by master key or forcibly and provided
reasonable care is exercised to safeguard Tenant's property, and such entry
shall not render Landlord or its agents liable therefor, nor in any event shall
the obligations or Tenant hereunder be affected. If during the last month of the
term Tenant shall have removed all or substantially all of Tenant's property
therefrom. Landlord may immediately enter, alter, renovate or redecorate the
demised premises without limitation or abatement of rent, or incurring liability
to Tenant for any compensation and such act shall have no effect on this lease
or Tenant's obligation hereunder. Landlord shall have the right at any time,
without the same constituting an
<PAGE>   7
eviction and without incurring liability to Tenant therefor to change the
arrangement and/or location of public entrances, passageways, doors, doorways,
corridors, elevators, stairs, toilets, or other public parts of the building and
to change the name, number or designation by which the building may be known.

VAULT, VAULT SPACE, AREA:

         14. No Vaults, vault space or area, whether or not enclosed or covered,
not within the property line or the building is leased hereunder, anything
contained in or indicated on any sketch, blue print or plan, or anything
contained elsewhere in this lease to the contrary notwithstanding. Landlord
makes no representation as to the location of the property line of the building.
All vaults and vault space and all such areas not within the property line of
the building, which Tenant may be permitted to use and/or occupy, is to be used
and/or occupied under a revocable license, and if any such license be revoked,
or if the amount of such space or area be diminished or required by any Federal,
state or municipal authority or public utility, Landlord shall not be subject to
any liability nor shall Tenant be entitled to any compensation or diminution or
abatement of rent, nor shall such revocation, diminution or requisition be
deemed constructive or actual eviction. Any tax, fee or charge of municipal
authorities for such vault or area shall be paid by Tenant.

OCCUPANCY:

         15. Tenant will not at any time use or occupy the demised premises in
violation of the certificate of occupancy issued for the building of which the
demised premises are a part. Tenant has inspected the premises and accepts them
as is, subject to the riders annexed hereto with respect to Landlord's work, if
any. In any event, Landlord makes no representation as to the condition or the
premises and Tenant agrees to accept the same subject to violations, whether or
not of record.

BANKRUPTCY:

         16. (a) If at the date fixed as the commencement of the term of this
lease or if at any time during the term hereby demised there shall be filed by
or against Tenant in any court pursuant to any statute either of the United
States or of any state, a petition in bankruptcy or insolvency or for the
reorganization or for the appointment of a receiver or trustee of all or a
portion of Tenant" property, and within 60 days thereof, Tenant fails to secure
a dismissal thereof, or if Tenant make an assignment for the benefit of
creditors or petition for or enter into an arrangement, this lease, at the
option of Landlord, exercised within a reasonable time after notice of the
happening of any one or more of such events, may be cancelled and terminated by
prior written notice to the Tenant (but if any of such events occur prior to the
commencement date, this lease shall be ipso facto cancelled and terminated) and
whether such cancellation and termination occur prior to or during the term,
neither Tenant nor any person claiming through or under Tenant by reason of any
statute or order of any court, shall be entitled to possession or to remain in
possession of the. premises demised but shall forthwith quit and surrender the
premises, and Landlord, in addition to the other rights and remedies Landlord
has by virtue of any other provision herein or elsewhere in this lease contained
or by virtue of any statue or rule of law, may retain as liquidated damages, any
rent, security deposit or moneys received by him from Tenant or others on behalf
of Tenant. If this lease shall be assigned in accordance with its terms, the
provisions of this Article 16 shall be applicable only to the party then owning
Tenant's interest in this lease.

         (b) It is stipulated and agreed that in the event of the termination of
this lease pursuant to (a) hereof, Landlord shall forthwith, notwithstanding any
other provisions of this lease to the contrary, be entitled to recover from
Tenant as and for liquidated damages an amount equal to the difference between
the rental reserved hereunder for the unexpired portion of the term demised and
the fair and reasonable rental value of the demised premises for the same
period. In the computation of such damages the difference between any
installment of rent becoming due hereunder after the date of termination and the
fair and reasonable rental value of the demised premises for the period for
which such installment was payable shall be discounted to the date of
termination at the rate of four percent (4%) per annum. If such premises or any
part thereof, be relet by the Landlord for the unexpired term of said lease, or
any part thereof, before presentation of proof of such liquidated damages to any
court, commission or tribunal, the amount of rent reserved upon such reletting
shall be deemed to be the fair and reasonable rental value for the part or the
whole of the premises so re-let during the term of the re-letting, Nothing
herein contained shall
<PAGE>   8
limit or prejudice the right of the Landlord to prove for and obtain as
liquidated damages by reason of such termination, an amount equal to the maximum
allowed by any statute or rule of law in effect at the time when, and governing
the proceedings in which, such damages are to be proved, whether or not such
amount be greater, equal to, or less than the amount of the difference referred
to above.

DEFAULT:

         17. (1) If Tenant defaults in fulfilling any of the covenants of this
lease other than the covenants for the payment of rent or additional rent; or if
the demised premises becomes vacant or deserted; or if the demised premises are
damaged by reason of negligence or carelessness of Tenant, its agents, employees
or invitees; or if any execution or attachment shall be issued against Tenant or
any of Tenant's property whereupon the demised premises shall be taken or
occupied by someone other than Tenant; or if Tenant shall make default with
respect to any other lease between Landlord and Tenant; or if Tenant shall fail
to move into or take possession of the premises within fifteen (15) days after
commencement of the term of this lease, of which fact Landlord shall be the sole
judge; then in any one or more of such events, upon Landlord serving a written
five (5) days notice upon Tenant specifying the nature of said default and upon
the expiration of said five (5) days, if Tenant shall have failed to comply with
or remedy such default, or if the said default or omission complained or shall
be of a nature that the same cannot be completely cured or remedied within said
five (5) day period, and if Tenant shall not have diligently commenced curing
such default within such five (5) day period, and shall not thereafter with
reasonable diligence and in good faith, proceed to remedy or cure such default,
then Landlord may serve a written three (3) days' notice of cancellation of this
lease upon Tenant, and upon the expiration o said three (3) days, this lease and
the term thereunder shall end and expire as fully and completely as if the
expiration of such three (3) day period were the day herein definitely fixed for
the end and expiration of this lease and the term thereof and Tenant shall then
quit and surrender the demised premises to Landlord but Tenant shall remain
liable as hereinafter provided.

         (2) If the notice provided for in (1) hereof shall have been given and
the term shall expire as aforesaid; or if Tenant shall make default in the
payment of the rent reserved herein or any item of additional rent herein
mentioned or any part of either or in making any other payment herein required;
then and in any of such events Landlord may without notice, re-enter the demised
premises either by force or otherwise, and dispossess Tenant by summary
proceedings or otherwise, and the legal representative of Tenant or other
occupant of demised premises and remove their effects and hold the premises as
if this lease had not been made, and Tenant hereby waives the service of notice
of intention to re-enter or to institute legal proceedings to that end. If
Tenant shall make default hereunder prior to the date fixed as the commencement
of any renewal or extension of this lease, Landlord may cancel and terminate
such renewal or extension agreement by written notice.

REMEDIES OF OWNER AND WAIVER OF REDEMPTION:

         18. In case of any such default, re-entry, expiration and/or dispossess
by summary proceedings or otherwise, (a) the rent shall become due thereupon and
be paid up to the time of such re-entry, dispossess and/or expiration, together
with such expenses as Landlord may incur for legal expenses, attorneys' fees,
brokerage, and/or for putting the demised premises in good order, or for
preparing the same for re-rental; (b) Landlord may re-let the premises or any
part or parts thereof, either in the name of Landlord or otherwise., for a term
or terms, which may at Landlord's option be less than or exceed the period which
would otherwise have constituted the balance of the term of this lease and may
grant concessions or free rent or charge a higher rental than that in this
lease, and/or (c) Tenant or the legal representatives of Tenant shall also pay
Landlord as liquidated damages for the failure of Tenant to observe and perform
said Tenant's covenants herein contained, any deficiency between the rent hereby
reserved and or covenanted to be paid and the net amount, if any, of the rents
collected on account of the lease or leases of the demised premises for each
month of the period which would otherwise have constituted the balance of the
term of this lease. The failure or Landlord to re-let the premises or any part
or parts thereof shall not release or affect Tenant's liability for damages. In
computing such liquidated damages there shall be added to the said deficiency
such expenses as Landlord may incur in connection with re-letting. such as legal
expenses, attorneys' fees, brokerage, advertising and for keeping the demised
premises in good order or for preparing the same for re-letting. Any such
liquidated damages shall be paid in monthly installments by Tenant on the rent
day specified in this lease and any suit brought to collect the amount of the
deficiency for any month shall not prejudice in any way the rights of Landlord
to collect the deficiency for any subsequent month by a similar proceeding.
Landlord, in putting the
<PAGE>   9
demised premises in good order or preparing the same for re- rental may, at
Landlord's option, make such alterations, repairs, replacements, and/or
decorations in the demised premises as Landlord, in Landlord's sole judgment,
considers advisable and necessary for the purpose of re-letting the demised
premises, and the making of such alterations, repairs, replacements, and/or
decorations shall not operate or be construed to release Tenant from liability
hereunder as aforesaid. Landlord shall in no event be liable in any way
whatsoever for failure to re-let the demised premises, or in the event that the
demised premises are re-let, for failure to collect the rent thereof under such
re- letting, and in no event shall Tenant be entitled to receive any excess, if
any, of such net rents collected over the sums payable by Tenant to Landlord
hereunder. In the event of a breach or threatened breach by Tenant of any or the
covenants or provisions hereof, Landlord shall have the right of injunction and
the right to invoke any remedy allowed at law or in equity as if re-entry,
summary proceedings and other remedies were not herein provided for. Mention in
this lease of any particular remedy, shall not preclude Landlord from any other
remedy, in law or in equity. Tenant hereby expressly waives any and all rights
of redemption granted by or under any present or future laws in the event of
Tenant being evicted or dispossessed for any cause, or in the event of Landlord
obtaining possession of the demised premises, by reason of the violation by
Tenant of any of the covenants and conditions of this lease, or otherwise.

FEES AND EXPENSES:

         19. If Tenant shall default in the observance or performance of any
term or covenant on Tenant's part to be observed or performed under or by virtue
of any of the terms or provisions in any article of this lease, then, unless
otherwise provided elsewhere in this lease, Landlord may immediately or at any
time thereafter and without notice perform the obligation of Tenant thereunder,
and if Landlord, in connection therewith or in connection with any default by
Tenant in the covenant to pay rent hereunder, makes any expenditures or incurs
any obligations for the payment of money, including but not limited to
attorney's fees, in instituting, prosecuting or defending any action or
proceedings, such sums so paid or obligations incurred with interest and costs
shall be deemed to be additional rent hereunder and shall be paid by Tenant to
Landlord within five (5) days of rendition of any bill or statement to Tenant
therefor, and if Tenant's lease term shall have expired at the time of making of
such expenditures or incurring or such obligations, such sums shall be
recoverable by Landlord as damages.

NO REPRESENTATIONS BY OWNER:

         20. Neither Landlord nor Landlord's agents have made any
representations or promises with respect to the physical condition of the
building, the land upon which it is erected or the demised premises, the rents,
leases, expenses of operation or any other matter or thing affecting or related
to the demised premises, the rents, leases, expenses of operation or any other
matter or thing affecting or related to the premises except as herein expressly
set forth and no rights, easements or licenses are acquired by Tenant by
implication or otherwise except as expressly set forth in the provisions of this
lease. Tenant has inspected the building and the demised premises and is
thoroughly acquainted with their condition and agrees to take the same "as is
and acknowledges that the taking of possession of the demised premises by Tenant
shall be conclusive evidence that the said premises and the building of which
the same form a part were in good and satisfactory condition at the time such
possession was so taken, except as to latent defects. All understandings and
agreements heretofore made between the parties hereto are merged in this
contract, which alone fully and completely expresses the agreement between
Landlord and Tenant and any executory agreement hereafter made shall be
ineffective to change, modify, discharge or effect an abandonment of it in whole
or in part, unless such executory agreement is in writing and signed by the
party against whom enforcement of the change, modification, discharge or
abandonment is sought.

END OF TERM:

         21. Upon the expiration or other termination of the term of this lease,
Tenant shall quit and surrender to Landlord the demised premises, broom clean,
in good order and condition, ordinary excepted, and Tenant shall remove all its
property. Tenant's obligation to observe or perform this covenant shall survive
the expiration or other termination of this lease. If the last day of the term
of this Lease or any renewal thereof, falls on Sunday, this lease shall expire
at noon on the preceding Saturday unless it be a legal holiday in which case it
shall expire at noon on the preceding business day.
<PAGE>   10
QUIET ENJOYMENT:

         22. Landlord covenants and agrees with Tenant that upon Tenant paying
the rent and additional rent and observing and performing all the terms,
covenants and conditions, on Tenant's part to be observed and performed, Tenant
may peaceably and quietly enjoy the premises hereby demised, subject,
nevertheless, to the terms and conditions of this lease including, but not
limited to, Article 33 hereof and to the ground leases, underlying leases and
mortgages hereinbefore mentioned.

FAILURE TO GIVE POSSESSION:

         23. If Landlord is unable to give possession of the demised premises on
the date of the commencement of the term hereof, because of the holding-over or
retention of possession of any tenant, under Tenant or occupants or if the
demised premises are located in a building being constructed, because such
building has not been sufficiently completed to make the premises ready for
occupancy or because of the fact that a certificate of occupancy has not been
procured for any other reason, Landlord shall not be subject to any liability
for failure to give possession on said date and the validity of the lease shall
not be impaired under such circumstances, nor shall the same be construed in any
way to extend the term of this lease, but the rent payable hereunder shall be
abated (provided Tenant is not responsible for the inability to obtain
possession) until after Landlord shall have given Tenant written notice that the
premises are substantially ready for Tenant's occupancy. If permission is given
to Tenant to enter into the possession of the demised premises or to occupy
premises other than the demised premises prior to the date specified as the
commencement of the term of this lease, Tenant covenants and agrees that such
occupancy shall be deemed to be under all the terms, covenants, conditions and
provisions of this lease, except as to the covenant to pay rent. The provisions
of this article are intended to constitute "an express provision to the
contrary" within the meaning of Section 223-a of the New York Real Property Law.

NO WAIVER:

         24. The failure of Landlord to seek redress for violation of, or to
insist upon the strict performance of any covenant or condition of this lease or
of any of the Rules or Regulations set forth or hereafter adopted by Landlord,
shall not prevent a subsequent act which would have originally constituted a
violation from having all the force and effect of an original violation. The
receipt by Landlord of rent with knowledge of the breach of any covenant of this
lease shall not be deemed a waiver of such breach and no provision of this lease
shall be deemed to have been waived by Landlord unless such waiver be in writing
signed by Landlord. No payment by Tenant or receipt by Landlord of a lesser
amount than the monthly rent herein stipulated shall be deemed to be other than
on account of the earliest stipulated rent, nor shall any endorsement or
statement of any check or any letter accompanying any check or payment as rent
be deemed an accord and satisfaction, and Landlord may accept such check or
payment without prejudice to Landlord's right to recover the balance of such
rent or pursue any other remedy in this lease provided. No act or thing done by
Landlord or Landlord's agents during the term hereby demised shall be deemed an
acceptance of a surrender of said premises and no agreement to accept such
surrender shall be valid unless in writing signed by Landlord. No employee of
Landlord or Landlord's agent shall have any power to accept the keys of said
premises prior to the termination of the lease and the delivery of keys to any
such agent or employee shall not operate as a termination of the lease or a
surrender of the premises.

WAIVER OF TRIAL BY JURY:

         25. It is mutually agreed by and between Landlord and Tenant that the
respective parties hereto shall and they hereby do waive trial by jury in any
action, proceeding or counterclaim brought by either of the parties hereto
against the other (except for personal Injury or property damage) on any matters
whatsoever arising out of or in any way connected with this lease, the
relationship of Landlord and Tenant, Tenant's use of or occupancy of said
premises, and any emergency statutory or any other statutory remedy. It is
further mutually agreed that in the event Landlord commences any proceeding or
action for possession including a summary proceeding for possession or the
premises, Tenant will not interpose any counterclaim of whatever nature or
description in any such proceeding.
<PAGE>   11
]INABILITY TO PERFORM:

         26. This lease and the obligation of Tenant to pay rent hereunder and
perform all of the other covenants and agreements hereunder on part of Tenant to
be performed shall in no way be affected, impaired or excused because Landlord
is unable to fulfill any of its obligations under this lease or to supply or is
delayed in supplying any service expressly or impliedly to be supplied or is
unable to make, or is delayed in making any repair, additions, alterations or
decorations or is unable to supply or is delayed in supplying any equipment or
fixtures if Landlord is prevented or delayed from doing so by reason of strike
or labor troubles or any cause whatsoever including, but not limited to,
government preemption in connection with a National Emergency or by reason of
any rule, order or regulation of any department or subdivision thereof of any
government agency or by reason of the conditions of supply and demand which have
been or are affected by war or other emergency.

BILLS AND NOTICES:

         27. Except as otherwise in this lease provided, a bill statement,
notice or communication which Landlord may desire or be required to give to
Tenant, shall be deemed sufficiently given or rendered if, in writing, delivered
to Tenant personally or sent by registered or certified mail addressed to Tenant
at the building of which the demised premises form a part or at the last known
residence address or business address of Tenant or left at any or the aforesaid
premises addressed to Tenant, and the time of the rendition of such bill or
statement and of the giving of such notice or communication shall be deemed to
be the time when the same is delivered to Tenant, mailed, or left at the
premises as herein provided. Any notice by Tenant to Landlord must be served by
registered or certified mail addressed to Landlord at the address first
hereinabove given or at such other address as Landlord shall designate by
written notice.

WATER CHARGES:

         28. If Tenant requires, uses or consumes water for any purpose in
addition to ordinary lavatory purposes (of which fact Tenant constitutes
Landlord to be the sole judge) Landlord may install a water meter and thereby
measure Tenant's water consumption for all purposes. Tenant shall pay Landlord
for the cost of the meter and the cost of the installation thereof and
throughout the duration of Tenant's occupancy Tenant shall keep said meter and
installation equipment in good working order and repair at Tenant's own cost and
expense in default of which Landlord may cause such meter and equipment to be
replaced or repaired and collect the cost thereof from Tenant, as additional
rent. Tenant agrees to pay for water consumed, as shown on said meter as and
when bills are rendered, and on default in making such payment Landlord may pay
such charges and collect the same from Tenant. Tenant agrees to pay for water
consumed, as shown on said meter as and when bills are rendered, and on default
in making such payment Landlord may pay such charges and collect the same
from Tenant. Tenant covenants and agrees to pay the sewer rent, charge or any
other tax, rent, levy or charge which now or hereafter is assessed, imposed or a
lien upon the demised premises or the realty of which they are part pursuant to
law, order or regulation made or issued in connection with the use, consumption,
maintenance or supply of water, water system or sewage or sewage connection or
system. The bill rendered by Landlord shall be payable by Tenant as additional
rent. Independently of and in addition to any of the remedies reserved to
Landlord hereinabove or elsewhere in this lease, Landlord may sue for and
collect any monies to be paid by Tenant or paid by Landlord for any of the
reasons or purposes hereinabove set forth.

SPRINKLERS:

         29. Anything elsewhere in this lease to the contrary notwithstanding,
if the New York Board of Fire Underwriters or the New York Fire Insurance
Exchange or any bureau, department or official of the federal, state or city
government recommend or require the installation of a sprinkler system or that
any changes, modifications, alterations, or additional sprinkler heads or other
equipment be made or supplied in an existing sprinkler system by reason or
Tenant's business, or the location of partitions, trade fixtures, or other
contents of the demised premises, or for any other reason, or if any such
sprinkler system installations, modifications, alterations, additional sprinkler
heads or other such equipment, become necessary to prevent the imposition of a
penalty or charge against the full
<PAGE>   12
allowance for a sprinkler system in the fire insurance rate set by any said
Exchange or by any fire insurance company, Tenant shall, at Tenant's expense,
promptly make such sprinkler system installations, changes, modifications,
alterations, and supply additional sprinkler heads or other equipment as
required whether the work involved shall be structural or non-structural in
nature.

ELEVATORS, HEAT, CLEANING:

         30. As long as Tenant is not in default under any of the covenants of
this lease Landlord shall: (a) provide necessary elevator facilities on business
days from 8 a.m. to 6 p.m. and on Saturdays from 8 a.m. to 1 p.m. and have one
elevator subject to call at all other times; (b) furnish heat to the demised
premises, when and as required by law, on business days from 8 a.m. to 6 p.m.
and on Saturdays from 8 a.m. to 1 p.m.; (c) at Landlord's expense cause to be
kept clean the public halls and public portions of the building which are used
in common by all tenants. Tenant shall, at Tenant's expense, keep the demised
premises clean and in order, to the satisfaction of Landlord, and for that
purpose shall employ the person or persons, or corporation approved by Landlord.
Tenant shall pay to Landlord the cost of removal of any of Tenant's rubbish and
refuse from the building Tenant shall pay to Landlord the cost of removal of any
of Tenant's refuse and rubbish form the building. Bills for the same shall be by
Landlord to Tenant at such time as Landlord shall elect and shall be due and
payable when rendered, and the amount of such bills shall be deemed to be, and
be paid as, additional. Tenant shall, however, have the option of independently
contracting for the removal of such refuse and rubbish in the event that Tenant
does not wish to have same done by employees of Landlord. Under such
circumstances, however, the removal of such refuse and rubbish by others shall
be subject to such rules and regulations as, in the judgment of Landlord, are
necessary for the proper operation of the building. Landlord reserves the right
to stop service of the heating, elevator, plumbing and electric systems, when
necessary, by reason of accident, or emergency, or for repairs, alterations,
replacements or improvements, in the judgment of Landlord desirable or necessary
to be made, until said repair, alterations, replacements or improvements shall
have been completed. And Landlord shall have no responsibility or liability for
failure to supply heat, elevator, plumbing and electric service during said
period or when prevented from doing so by strikes, accidents or by any cause
beyond Landlord's control, or by laws, orders or regulations of any Federal,
state or Municipal Authority, or failure of coal, oil or other suitable fuel. If
the building of which the demised premises are a part supplies manually operated
elevator service, Landlord may proceed with alterations necessary to substitute
automatic control elevator service upon ten (10) day written notice to Tenant
without in any way affecting the obligations of Tenant hereunder, provided that
the same shall be done with the minimum amount of inconvenience to Tenant, and
Landlord pursues with due diligence the completions of the alterations.

CAPTIONS:

         32. The Captions are inserted only as a matter of convenience and for
reference and in no way define, limit or describe the scope of this lease nor
the intent of any provision thereof.

DEFINITIONS:

         33. The term "Landlord" as used in this lease means only the owner, or
the mortgagee in possession, for the time being of the land and building (or the
owner of a lease of the building or of the land and building) of which the
demised premises form a part, so that in the event of any sale or sales of said
land and building or of said lease, or in the event of a lease of said building,
or of the land and building, the said Landlord shall be and hereby is entirely
freed and relieved of all covenants and obligations of Landlord hereunder, and
it shall be deemed and construed without further agreement between the parties
or their successors in interest, or between the parties and the purchaser, at
any such sale, or the said lessee of the building, or of the land and building,
that the purchaser or the lessee of the building has assumed and agreed to carry
out any and all covenants and obligations of Landlord hereunder. The words
"re-enter" and "re-entry" as used in this lease are not restricted to their
technical legal meaning. The term "business days" as used in this lease, shall
exclude Saturdays (except such portion thereof as is covered by specific hours
in Article 30), Sundays and all days observed by the State or Federal Government
as legal holidays and those designated as holidays by the applicable building
service union employees service contract or by the applicable Operating
Engineers contract with respect to HVAC service.
<PAGE>   13
ADJACENT EXCAVATION-SHORING:

         34. If an excavation shall be made upon land adjacent to the demised
premises, or shall be authorized to be made, Tenant shall afford to the person
causing or authorized to cause such excavation, license to enter upon the
demised premises for the purpose of doing such work as said person shall deem
necessary to preserve the wall or the building of which demised premises form a
part from injury or damage and to support the same by proper foundations without
any claim for damages or indemnity against Landlord, or diminution or abatement
of rent.

RULES AND REGULATIONS:

         35. Tenant and Tenant's servants, employees, agents, visitors, and
licensees shall observe faithfully, and comply strictly with, the Rules and
Regulations and such other and further reasonable Rules and Regulations as
Landlord or Landlord's agents may from time to time adopt. Notice of any
additional rules or regulations shall be given in such manner as Landlord may
elect. In case Tenant disputes the reasonableness of any additional Rule or
Regulation hereafter made or adopted by Landlord or Landlord's agents, the
parties hereto agree to submit the question of the reasonableness of such Rule
or Regulation for decision to the New York office of the American Arbitration
Association, whose determination shall be final and conclusive upon the parties
hereto. The right to dispute the reasonableness of any additional Rule or
Regulation upon Tenant's part shall be deemed waived unless the same shall be
asserted by service of a notice, in writing upon Landlord within ten (10) days
after the giving of notice thereof. Nothing in this lease contained shall be
construed to impose upon Landlord any duty or obligation to enforce the Rules
and Regulations or terms, covenants or conditions in any other lease, as against
any other tenant and Landlord shall not be liable to Tenant for violation of the
same by any other tenant, its servants, employees, agents, visitors or
licensees.

GLASS:

         36. Landlord shall replace, at the expense of the Tenant, any and all
plate and other glass damaged or broken from any cause whatsoever in and about
the demised premises. Landlord may insure, and keep insured, at Tenant's
expense, all plate and other glass in the demised premises for and in the name
of Landlord. Bills for the premiums therefor shall be rendered by Landlord to
Tenant at such times as Landlord may elect, and shall be due from, and payable
by, Tenant when rendered, and the amount thereof shall be deemed to be, and be
paid, as additional rent.

SUCCESSORS AND ASSIGNS:

         37. The covenants, conditions and agreements contained in this lease
shall bind and inure to the benefit of Landlord and Tenant and their respective
heirs, distributees, executors, administrators, successors, and except as
otherwise provided in this lease, their assigns.

         Articles 38 through 72 of the Rider and Exhibits attached hereto are
made a part hereof.

         IN WITNESS WHEREOF, Landlord and Tenant have respectively signed and
sealed this lease as of the day and year first above written.

Witness for Landlord:            /s/ 401 PARK AVENUE SOUTH ASSOCIATES LLC [SEAL]
                                 -----------------------------------------------

Witness for Tenant               /s/ HEALTH MANAGEMENT SYSTEMS, INC. [SEAL]
                                 -----------------------------------------------
<PAGE>   14
                                ACKNOWLEDGEMENTS

CORPORATE LANDLORD
STATE OF NEW YORK,       SS.:
COUNTY OF

On this day of   , 2001, before me personally came to me known, who being by me
duly sworn, did depose and say that he resides in that he is the of the
corporation described in and which executed the foregoing instrument, as
LANDLORD; that he knows the seal of said corporation; that the seal affixed to
said instrument is such corporate seal; that it was so affixed by order of the
Board of Directors of said corporation, and that he signed his name thereto by
like order.

CORPORATE TENANT
STATE OF NEW YORK,       SS.:
COUNTY OF

On this day of   ,2001, before me personally came to me known, who being by me
duly sworn, did depose and say that he resides in that he is the of the
corporation described in and which executed the foregoing instrument, as TENANT;
that he knows the seal of said corporation; that the seal affixed to said
instrument is such corporate seal; that it was so affixed by order of the Board
of Directors of said corporation, and that he signed his name thereto by like
order.

IMPORTANT - PLEASE READ RULES AND REGULATIONS ATTACHED TO AND MADE A PART OF
THIS LEASE IN ACCORDANCE WITH ARTICLE 35.

         1. The sidewalks, entrances, driveways, passages, courts, elevators,
vestibules, stairways, corridors or halls shall not be obstructed or encumbered
by any Tenant or used for any purpose other than for ingress or egress from the
demised premises and for delivery of merchandise and equipment in a prompt and
efficient manner using elevators and passageways designated for such delivery by
Landlord. There shall not be used in any space, or in the public hall of the
building, either by any Tenant or by jobbers or others in the delivery or
receipt of merchandise, any hand trucks, except those equipped with rubber tires
and sideguards. If said premises are situated on the ground floor of the
building, Tenant thereof shall further, at Tenant's expense, keep the sidewalk
and curb in front of said premises clean and free from ice, snow, dirt and
rubbish.

         2. The water and wash closets and plumbing fixtures shall not be used
for any purposes other than those for which they were designed or constructed
and no sweepings, rubbish, rags, acids or other substances shall be deposited
therein, and the expense of any breakage, stoppage, or damage, resulting from
the violation of this rule shall be borne by the Tenant who, or whose clerks,
agents, employees or visitors, shall have caused it.

         3. No carpet, rug or other article shall be hung or shaken out of any
window of the building; and no Tenant shall sweep or throw or permit to be swept
or thrown from the demised premises any dirt or other substances into any of the
corridors of halls, elevators, or out of the doors or windows or stairways of
the building and Tenant shall not use, keep or permit to be used or kept any
foul or noxious gas or substance in the demised premises, or permit or suffer
the demised premises to be occupied or used in a manner offensive or
objectionable to Landlord or other occupants of the buildings by reason of
noise, odors, and or vibrations, or interfere in any way, with other Tenants or
those having business therein, nor shall any bicycles, vehicles, animals, fish,
or birds be kept in or about the building. Smoking or carrying lighted cigars or
cigarettes in the elevators of the building is prohibited.

         4. No awnings, equipment or other projections shall be attached to the
outside walls or windows of the building without the prior written consent of
Landlord.

         5. No equipment, sign, advertisement, notice or other lettering shall
be exhibited, inscribed, painted or affixed by any Tenant on any part of the
outside of the demised premises or the building or on the inside of the
<PAGE>   15
demised premises if the same is visible from the outside of the premises without
the prior written consent of Landlord, except that the name of Tenant may appear
on the entrance door of the premises. In the event of the violation of the
foregoing by any Tenant, Landlord may remove same without any liability and may
charge the expense incurred by such removal to Tenant or Tenants violating this
rule. Interior signs on doors and directory tablet shall be inscribed, painted
or affixed for each Tenant by Landlord at the expense of such Tenant, and shall
be of a size, color and style acceptable to Landlord.

         6. No Tenant shall mark, paint, drill into, or in any way deface any
part of the demised premises or the building of which they form a part. No
boring, cutting or stringing of wires shall be permitted, except with the prior
written consent of Landlord, and as Landlord may direct. No Tenant shall lay
linoleum, or other similar floor covering, so that the same shall come in direct
contact with the floor of the demised premises, and, if linoleum or other
similar floor covering is desired to be used an Interlining of builder's
deadening felt shall be first affixed to the floor, by a paste or other
material, soluble in water, the use of cement or other similar adhesive material
being expressly prohibited.

         7. No additional locks or bolts of any kind shall be placed upon any of
the doors or windows by any Tenant, nor shall any changes be made in existing
1ocks or mechanism thereof. Each Tenant must, upon the termination of his
Tenancy, restore to Landlord all keys of stores, offices and toilet rooms,
either furnished to, or otherwise procured by, such Tenant, and in the event of
the loss of any keys, so furnished, such Tenant shall pay to Landlord the cost
thereof.

         8. Freight, furniture, business equipment, merchandise and bulky matter
of any description shall be delivered to and removed from the premises only on
the freight elevators and through the service entrances and corridors, and only
during hours and in a manner approved by Landlord. Landlord reserves the right
to inspect all freight to be brought into the building and to exclude from the
building all freight which violates any of these Rules and Regulations of the
lease of which these Rules and Regulations are a part.

         9. No Tenant shall obtain for use upon the demised premises ice,
drinking water, towel and other similar services, or accept barbering or
bootblacking services in the demised premises, except from persons authorized by
Landlord, and at hours and under regulations fixed by Landlord. Canvassing,
soliciting and peddling in the building is prohibited and each Tenant shall
cooperate to prevent the same.

         10. Landlord reserves the right to exclude from the building between
the hours of 6 P.M. and 8 A.M. and at all hours on Sundays, and legal holidays
all persons who do not present a pass to the building signed by Landlord.
Landlord will furnish passes to persons for whom any Tenant requests same in
writing. Each Tenant shall be responsible for all persons for whom he requests
such pass and shall be liable to Landlord for all acts of such persons.

         11. Landlord shall have the right to prohibit any advertising by any
Tenant which in Landlord's opinion, tends to impair the reputation of the
building or its desirability as a loft building, and upon written notice from
Landlord, Tenant shall refrain from or discontinue such advertising.

         12. Tenant shall not bring or permit to be brought or kept in or on the
demised premises, any inflammable, combustible, or explosive, or hazardous
fluid, material, chemical or substance, or cause or permit any odors of cooking
or other processes, or any unusual or other objectionable odors to permeate in
or emanate from the demised premises.
<PAGE>   16
<TABLE>
<CAPTION>

                                                                   Increased          Base              Next Year
                                 Annual                            Operating        Operating          Operating
Dates            Dates           Rental         Multiplying         Expense           Expense            Expense
From              To           Escalation       Percentage         Contribution     Contribution      Contribution
------------------------      ---------------------------------------------------------------------------------------
<S>           <C>               <C>               <C>               <C>               <C>               <C>
01/01/00       12/31/00            90,723            1.035%           93,898           10,505            104,404
01/01/01       12/31/01           104,404            1.035%          108,058           10,505            118,563
01/01/02       12/31/02           118,563            1.035%          122,713           10,505            133,219
01/01/03       12/31/03           133,219            1.035%          137,881           10,505            148,387
01/01/04       12/31/04           148,387            1.035%          153,580           10,505            164,086
01/01/05       12/31/05           164,086            1.035%          169,829           10,505            180,334
01/01/06       12/31/06           180,334            1.035%          186,646           10,505            197,151
01/01/07       12/31/07           197,151            1.035%          204,051           10,505            214,557
01/01/08       12/31/08           214,557            1.035%          222,066           10,505            232,572
01/01/09       12/31/09           232,572            1.035%          240,712           10,505            251,217
01/01/10       12/31/10           251,217            1.035%          260,010           10,505            270,515
01/01/11       12/31/11           270,515            1.035%          279,983           10,505            290,489
01/01/12       12/31/12           290,489            1.035%          300,656           10,505            311,161
01/01/13       05/31/13           311,161
</TABLE>

<TABLE>
<CAPTION>

                          SEVENTH & EIGHTH AMENDMENTS of Entire 12th (7,100 sf + 10,400 sf)
------------------------------------------------------------------------------------------------------------------

                                  Annual            Operating           Fixed       Supplemental
Dates          Dates              Rental             Expense          Operating      Labor Wage
From            To                 Rate            Contribution        Payment        Payment           Total
------------------------      ------------------------------------------------------------------------------------
<S>            <C>                 <C>                 <C>              <C>             <C>              <C>
01/01/01       12/31/01            157,805             104,404           114,279         28,275          404,763
01/01/02       12/31/02            157,805             118,563           114,279         28,275          418,923
01/01/03       12/31/03            157,805             133,219           114,279         28,275          433,578
01/01/04       12/31/04            157,805             148,387           114,279         28,275          448,746
01/01/05       12/31/05            157,805             164,086           114,279         28,275          464,445
01/01/06       12/31/06            157,805             180,334           114,279         28,275          480,693
01/01/07       12/31/07            157,805             197,151           114,279         28,275          497,510
01/01/08       12/31/08            157,805             214,557           114,279         28,275          514,916
01/01/09       12/31/09            157,805             232,572           114,279         28,275          532,931
01/01/10       12/31/10            157,805             251,217           114,279         28,275          551,577
01/01/11       12/31/11            157,805             270,515           114,279         28,275          570,875
01/01/12       12/31/12            157,805             290,489           114,279         28,275          590,848
01/01/13       05/31/13            157,805             311,161           114,279         28,276          611,521

</TABLE>
<PAGE>   17
RIDER TO LEASE DATED APRIL 23, 2001
BETWEEN 401 PARK AVENUE SOUTH ASSOCIATES LLC, LANDLORD,
AND HEALTH MANAGEMENT SYSTEMS, INC., TENANT

     38.  If any conflict shall arise between any of the provisions of this
Rider and any of the terms, printed or typewritten, of the printed portion of
this Lease to which this Rider is attached, all such conflicts shall be
resolved in favor of the provisions of this Rider.

     39.  (a)  Notwithstanding anything to the contrary contained in this Lease,
all sums of money, other than the fixed rent, as shall become due from and
payable by Tenant to Landlord under this Lease shall be deemed to be additional
rent.

          (b)  Any obligation of Landlord or Tenant which by its nature or under
the circumstances can only be, or by the provisions of this Lease, may be
performed after the expiration or earlier termination of this Lease, and any
liability for a payment which shall have accrued to or with respect to any
period ending at the time of expiration or termination, unless expressly
otherwise provided in this Lease, shall survive the expiration or termination of
this Lease.

     40.  (a)  This Lease, and all rights of Tenant hereunder, are and shall be
subject and subordinate to a certain ground lease of the property of which the
demised premises are a part, between Milton Schwartz, et al. as lessor and
Landlord as lessee, dated September 14, 1979, and all renewals, extensions,
modifications and replacements thereof, and to all mortgages which may now or
hereafter affect such property and/or any of such leases, whether or not such
mortgages shall also cover other lands and/or buildings and/or leases, to each
and every advance made or hereafter to be made under such mortgages, and to all
renewals, modifications, replacements and extensions of such leases and such
mortgages and all consolidations of such mortgages. The foregoing shall not
apply to any fee mortgage which is subordinate to such ground lease. This
Section shall be self-operative and no further instrument of subordination shall
be required. In confirmation of such subordination, Tenant shall promptly
execute, acknowledge and deliver any instrument that Landlord, the lessor under
any such lease or the holder of any such mortgage or any of their respective
successors in interest may reasonably request to evidence such subordination.
Any lease to which this Lease is, at the time referred to, subject and
subordinate is herein called "Superior Lease" and the lessor of a Superior Lease
or its successor in interest, at the time referred to, is herein called
"Superior Lessor"; and any mortgage to which this Lease is, at the time referred
to, subject and subordinate, is herein called "Superior Mortgage" and the holder
of a Superior Mortgage is herein called "Superior Mortgagee."

          (b)  If any Superior Lessor or Superior Mortgagee or the nominee or
designee of any Superior Lessor or Superior Mortgagee shall succeed to the
rights of Landlord under this Lease, whether through possession or foreclosure
action or delivery of a new lease or deed, or otherwise,

                                       1
<PAGE>   18

then at the request of such party so succeeding to Landlord's rights (herein
called "Successor Landlord") and upon such Successor Landlord's written
agreement to accept Tenant's attornment, Tenant shall attorn to and recognize
such Successor Landlord as Tenant's landlord under this Lease and shall
promptly execute and deliver any instrument that such Successor Landlord may
reasonably request to evidence such attornment. Upon such attornment, this
Lease shall continue in full force and effect as a direct lease between the
Successor Landlord and Tenant upon all of the terms, conditions and covenants
as are set forth in this Lease, except that the Successor Landlord (unless
formerly the Landlord under this Lease or its nominee or designee) shall not be
(i) liable in any way to Tenant for any act or omission, neglect or default on
the part of Landlord under this Lease, (ii) responsible for any monies owing by
or on deposit with Landlord to the credit of Tenant, except to the extent
turned over to the Successor Landlord, (iii) subject to any counterclaim or
setoff which theretofore accrued to Tenant against Landlord, (iv) bound by any
previous modification of this Lease or by any previous prepayment of fixed rent
for more than one (1) month, which was not approved in writing by the Superior
Lessor or the Superior Mortgagee thereto or by reason of which the Successor
Landlord shall have succeeded to the rights of Landlord under this Lease, (v)
liable to Tenant beyond the Successor Landlord's interest in the property of
which the demised premises are a part and the rents, income, receipts,
revenues, issues and profits issuing from such property, (vi) responsible for
the performance of any work to be done by the Landlord under this Lease to
render the demised premises ready for occupancy by the Tenant, or (vii)
required to remove any person occupying the demised premises or any part
thereof, except if such person claims by, through or under the Successor
Landlord.

     41.  For the purposes of this Article 41:

          (a)  The term "Taxes" shall mean the real estate taxes, assessments
and special assessments imposed upon the Building and/or the land upon which the
Building is located (the "Land") by any governmental bodies or authorities. If
at any time during the term of this Lease the method of taxation prevailing on
the date hereof shall be altered so that in lieu of, or as an addition to, or as
a substitute for, the whole or any part of such real estate taxes, assessments
and special assessments now imposed on real estate, there shall be levied,
assessed and imposed (i) a tax, assessment, levy, imposition, license fee or
charge wholly or partially as a capital levy or measured or based on the rents
received therefrom, or (ii) any other additional or substitute tax, assessment,
levy, imposition or charge, then all such taxes, assessments, levies,
impositions, fees or charges shall be deemed to be included within the term
"Taxes" for the purposes hereof, provided, however, that except as otherwise
provided herein, the term "Taxes" shall not include any income, franchise,
transfer, inheritance or capital stock tax which is levied, assessed or imposed
upon Landlord; and if any such taxes are included within the term "Taxes" then
the amount of such taxes included within the term "Taxes" shall be determined as
if the Building and Land are the sole assets of Landlord and as if the income
therefrom is the sole income of Landlord.

                                       2
<PAGE>   19
     (b) The term "Base Tax" shall mean $201,181.

     (c) The term "Tax Year" shall mean the period of twelve (12) calendar
months beginning July 1st.

     (d) The term "Tenant's Proportionate Share" shall mean 8.333 percent.

     If the real estate fiscal tax year of the City of New York shall be
changed during the term of this Lease, any Taxes for a new real estate fiscal
tax year, a part of which is included within a particular Tax Year and a part
of which is not so included, shall be apportioned on the basis of the number of
days in the new real estate fiscal tax year included in the particular Tax Year
for the purpose of making the computations under this Article.

     If the Taxes for any Tax Year during the term of this Lease after the
commencement of this Lease shall exceed the Base Tax, Tenant shall pay for such
Tax Year an amount (herein called the "Tax Payment") equal to Tenant's
Proportionate Share of the excess. The Tax Payment for each Tax Year shall be
due and payable in four equal quarterly installments, within thirty (30) days
after demand, which demand shall not be made more than sixty (60) days prior to
the date each such quarterly installment of Taxes is first due and payable by
Landlord, based upon a statement which shall be furnished by Landlord to Tenant
together with each such demand. If, however, at any time Landlord is required
(by the taxing authority or the holder of any mortgage covering the Building) to
pay Taxes more frequently than quarterly, Landlord shall have the right to
collect installments of the Tax Payment not more than thirty (30) days prior to
the date each installment of Taxes is first due and payable by Landlord.

     If the Base Tax is reduced as a result of a certiorari proceeding or
otherwise, Landlord shall adjust the amount of each Tax Payment previously
made, and Tenant shall pay the amount of said adjustment within thirty (30)
days after demand setting forth the amount of said adjustment.

     If Landlord shall receive a refund of the Taxes for any Tax Year, Landlord
shall promptly pay to Tenant Tenant's Proportionate Share of the refund (after
deducting from such refund the reasonable costs and expenses of obtaining
same); provided, however, such payment to Tenant shall in no event exceed
Tenant's Tax Payment paid for such Tax Year.

     If a Tax Year ends after the expiration or termination of the term of this
Lease, the Tax Payment therefor shall be prorated to correspond to that portion
of such Tax Year occurring within the term of this Lease.

     Any delay or failure of Landlord in billing any amount due under this
Section shall not constitute a waiver or in any way impair the continuing
obligation of Tenant to make all payments hereunder.

                                       3
<PAGE>   20
     42.  For the purposes of this Article 42:

          (c)  The words "Wage Rate" shall mean the minimum regular hourly wage
rate prescribed for Porters in Class A Office Buildings pursuant to an agreement
between the Realty Advisory Board on Labor Relations, Incorporated (or any
successor thereto) and Local 32B of the Building Service Employees International
Union, AFL-CIO (or any successor thereto) covering the wage rates for Porters in
Class A Office Buildings; provided, however, if there is no such agreement in
effect prescribing such minimum regular hourly wage rate for Porters,
computations and payments shall thereupon be made upon the basis of the minimum
regular hourly wage rate actually payable to Porters by Landlord or by the
contractor performing cleaning services for Landlord.

          (d)  The words "Base Wage Rate" shall mean the Wage Rate in effect
on January 1, 1990.

          (e)  The words "Wage Rate Multiple" shall mean the figure 17,500.

          (f)  The word "Porters" shall mean that classification of
non-supervisory employee engaged in the general maintenance and operation of
Class A Office Buildings most nearly comparable to that classification now
applicable to non-supervisory employees who devote a major portion of their time
to general cleaning, maintenance and miscellaneous services essentially of a
non-technical and non-mechanical nature and are the type of employees who are
now included in the classification of "Class A-Others" in the current agreement
between the Realty Advisory Board on Labor Relations, Incorporated and Local 32B
of the Building Service Employees International Union, AFL-CIO.

          (g)  For each Operating Year commencing during the term of this Lease,
Tenant shall pay an amount (herein called "Operating Payment") equal to the sum
obtained by multiplying the amount by which the Wage Rate in effect as of the
first day, of such Operating Year exceeds the Base Wage Rate by the Wage Rate
Multiple.

     Tenant shall pay to Landlord on the first day of each month during such
Operating Year an amount equal to one-twelfth of the Fixed Operating Payment as
hereinafter defined for such Operating Year.

                                       4
<PAGE>   21

     If an Operating Year ends after the expiration or termination of this
Lease, the additional rent in respect thereof payable under this Article shall
be prorated to correspond to that portion of the Operating Year occurring
within the term of this Lease.

"42.(h)  Notwithstanding anything to the contrary contained in this Lease,
the Wage Rate for each year occurring during the term of this Lease shall be the
Wage Rate in effect for the calendar year 1990." Landlord and Tenant agree and
confirm that the amount payable pursuant to this paragraph 42(h) is $114,279.35
(hereinafter "Fixed Operating Payment").

"42.(j)  As an inducement to Landlord to maintain the Wage Rate as set
forth in Article 42(h) of this Lease Tenant agrees to pay to Landlord, in each
year, as a supplement to the amount to be paid by Tenant pursuant to Article
42(g) of this Lease an amount (hereinafter "Supplementary Labor Wage Payment")
equal to $28,275.65.

     Tenant shall pay this Supplementary Labor Wage Payment as additional rent
in twelve equal monthly installments beginning on January 1st of each year. All
payments to be made pursuant to this Article are due and payable on or before
the first day of each month. Any delay or failure of Landlord in billing any
amount payable under this Article shall not constitute a waiver or in any way
impair the continuing obligation of Tenant to make all payments hereunder."

"42.(k)  Effective as of the first day of January in each year during the term
of this Lease there shall be an adjustment to the amounts payable by Tenant
pursuant to the terms of this Lease. This adjustment (hereinafter "Operating
Expense Contribution") shall represent a contribution by Tenant to Landlord
toward increases in operating costs of the Building. The annual Operating
Expense Contribution shall be the amount as specified for the time periods
below:

     a. January 1, 2001 to December 31, 2001           $104,404
     b. January 1, 2002 to December 31, 2002           $118,563
     c. January 1, 2003 to December 31, 2003           $133,219
     d. January 1, 2004 to December 31, 2004           $148,387
     e. January 1, 2005 to December 31, 2005           $164,086
     f. January 1, 2006 to December 31, 2006           $180,334
     g. January 1, 2007 to December 31, 2007           $197,151
     h. January 1, 2008 to December 31, 2008           $214,557
     i. January 1, 2009 to December 31, 2009           $232,572
     j. January 1, 2010 to December 31, 2010           $251,217
     k. January 1, 2011 to December 31, 2011           $270,515
     l. January 1, 2012 to December 31, 2012           $290,489
     m. January 1, 2013 to December 31, 2013           $311,161

Notwithstanding anything to the contrary herein contained, Tenant's obligation
to pay this Operating Expense Contribution shall commence on the Commencement
Date of this Lease and the annual amount payable on the Commencement Date shall
be the amount illustrated above that corresponds to the year in which the
Commencement Date occurs. The Operating Expense Contribution applicable to the
year in which this Lease commences and the year in which this Lease expires
shall be prorated to the Commencement Date or the Expiration Date, as the case
may be.

                                       5

<PAGE>   22
          Tenant shall pay the Operating Expense Contribution as additional
     rent, in twelve equal monthly installments commencing on January 1st of
     each year. All payments to be made pursuant to this Article are due and
     payable on or before the first day of each month. Any delay or failure in
     billing any amount payable under this Article shall not constitute a waiver
     or in any way impair the continuing obligation of Tenant to make all
     payments hereunder."

     43.  (a) Tenant shall take possession of the demised premises on the date
the term of this Lease shall commence "AS IS" and Landlord shall have no
obligation to furnish, render or supply any work, labor, services, materials,
fixtures, furniture, equipment or decoration to make the demised premises ready
or suitable for Tenant's occupancy.

          (b) Deleted Prior to Execution.

          (c) Tenant, at its sole cost and expense, shall cause to be prepared
complete finished and detailed architectural and engineering drawings and
mechanical Plans ("Tenant's Plans") including all dimensions and specifications
for Tenant's Work (as hereinafter defined). Tenant's Plans shall be prepared by
a registered architect or licensed professional engineer, shall comply with all
applicable laws, statutes, ordinances, orders, rules, regulations and
requirements of all federal, state and municipal governments, and the
appropriate agencies, officers, departments, boards and commissions thereof,
applicable to the demised premises or the Building and shall be compatible with
the plans for the Building which are on file in the Department of Buildings.
Tenant's Plans, together with the name of the contractor or construction manager
who shall perform or supervise Tenant's Work and a true copy of the contract or
contracts covering Tenant's Work shall be delivered to Landlord for approval. If
Landlord shall have grounds for withholding its approval of Tenant's Plans
and/or Tenant's contractor or construction manager, Landlord shall notify Tenant
as to such grounds and within fifteen (15) days after Landlord's notice is
given, Tenant shall amend Tenant's Plans accordingly and/or substitute a new
contractor or construction manager and deliver the amended plans and/or the name
of the new contractor or construction manager to Landlord for approval. Landlord
shall notify Tenant of its approval or disapproval of Tenant's Plans and any
amendments thereof and of Tenant's contractor or construction manager or any
substitute therefor within ten (10)

                                       6
<PAGE>   23
days after Tenant has submitted such Plans of the name of such contractor or
construction manager to Landlord. The same procedure as for the original
Tenant's Plans and Tenant's contractor or construction manager shall be
applicable to any amendments of Tenant's Plans and/or the substitution of a new
contractor or construction manager under the preceding sentence. If Tenant's
Plans and Tenant's contractor or construction manager have been approved by
Landlord, they shall not be changed without Landlord's consent, which consent
shall not be unreasonably withheld. Tenant shall, to the extent of $500 in the
aggregate, pay to Landlord upon demand the reasonable costs and expenses of
Landlord in (i) reviewing Tenant's Plans and each amendment thereof which, in
Landlord's reasonable judgment is material and (ii) inspecting Tenant's Work,
including, without limitation, the fees of any architect or engineer employed
by Landlord for such purpose. Any review or approval by Landlord of Tenant's
Plans is solely for Landlord's benefit and without any representation or
warranty whatsoever to Tenant with respect to the adequacy, correctness or
efficiency thereof or otherwise

          (d)  Tenant, at its sole cost and expense, shall (i) cause Tenant's
Plans to be filed with the appropriate governmental authorities or agencies
having jurisdiction thereover and (ii) promptly obtain any necessary
certificates for the final approval by such authorities or agencies of Tenant's
Work, including, without limitation, any required certificates of occupancy,
both temporary and permanent.

          (e)  No Tenant's Work shall be commenced unless all required
municipal and other governmental permits, authorizations and approvals shall
have been obtained by Tenant, at its sole cost and expense, and unless the
originals thereof (or true copies thereof if such originals are required by law
to be kept on the demised premises) shall have been delivered to Landlord.
Landlord shall, upon the written request of Tenant, execute any documents
necessary to be signed by Landlord to obtain any such permits, authorizations
and approvals, provided and upon condition that same shall be without cost,
liability or expense to Landlord.

          (f)  All Tenant's Work shall be done under the supervision of a
registered architect or licensed professional engineer approved by Landlord.

          (g)  Tenant, at its sole cost and expense, shall perform or cause to
be performed all repairs, restorations, building, rebuilding, alterations and
other work shown in Tenant's Plans ("Tenant's Work).

          (h)  Tenant's Work shall be performed in a first-class workmanlike
manner and in accordance with (i) all laws, statutes, ordinances, orders,
rules, regulations and requirements of all federal, state and municipal
governments, and the appropriate agencies, officers, departments, boards and
commissions thereof, whether now or hereafter in force, applicable to the
demised premises, (ii) all insurance requirements, whether now or hereafter in
force, (iii) Tenant's Plans, (iv) the plans for the Building referred to above
and (v) all of the other provisions of this paragraph and this Lease.

          (i)  All Tenant's Work shall be commenced prompt-

                                       7
<PAGE>   24

ly after Tenant receives the required approvals and shall be performed with due
diligence. In no event shall Tenant's Work delay or interfere with the
performance of work to be done by Landlord elsewhere in the Building. If in
Landlord's judgment such delay or interference shall exist, Tenant shall
promptly discontinue Tenant's Work until the work being done by Landlord which
was delayed or interfered with shall have been completed. If Tenant's Work is
being performed in accordance with good construction practice and if Tenant is
not then in default hereunder, the period for which fixed rent and additional
rent are to be waived pursuant to the provisions of Article 62 of this Lease
shall be extended by one (1) day for each full business day that Tenant has
discontinued Tenant's Work in compliance with the provisions of the preceding
sentence. Tenant shall pay for all of Tenant's Work promptly, in cash, so that
the demised premises, the Building, and the interests therein of Landlord and
Tenant shall at all times be free from any possible (a) liens for labor
performed or claimed to have been performed or materials supplied or claimed to
have been supplied and (b) chattel mortgages, conditional sales contracts,
title retention agreements, security interests and agreements, financing
agreements, financing statements and any similar agreements (collectively,
"Liens").

          (j)  If any Liens shall at any time be recorded or filed against the
demised premises, the Building, or the interests therein of Landlord or Tenant
as a result of or arising out of Tenant's Work, Tenant shall cause the same to
be discharged of record within 10 days after the notice of the recording or
filing of the same, by either payment, deposit or bond. If Tenant shall fail to
cause any Lien to be discharged of record within such period, Landlord shall
have the right (in addition to all other remedies), but not the obligation, to
cause the discharge of such Lien of record either by paying the amount claimed
to be due, by deposit in court or by bond. Tenant shall reimburse Landlord upon
demand as additional rent for any amount paid or deposited by Landlord therefor
(including, without limitation, all incidental costs and expenses, attorneys'
fees, bond premiums and any other sum required to be paid to a surety) in
connection therewith, together with interest on all such amounts at the rate of
one and one-half percent per calendar month or part thereof, or the then
maximum lawful interest rate, whichever shall be less, from the date of
payment or deposit by Landlord.

          (k)  Nothing contained in this paragraph shall be deemed to be, or
construed in any way as constituting, the consent or request of Landlord to any
person for the performance of any labor or the furnishing of any materials at
or to the demised premises or the Building, or any part thereof, nor as giving
Tenant any right, power or authority to contract for or permit the performance
of any labor or the furnishing of any material which might give rise to the
right to record or file any Lien against the demised premises, the Building or
any part thereof or against the interests therein of Landlord or Tenant, it
being intended that all persons who may perform any labor or furnish any
materials to Tenant at the demised premises shall look only to the credit of
Tenant and such security as Tenant may furnish to such persons for the payment
of all such labor and materials, and that Landlord does not consent to the
recording or filing of any Lien against the interest or estate of Landlord in
the demised premises or the Building.

          (1)  At all times when any Tenant's Work is in

                                       8

<PAGE>   25
progress, Tenant shall, in addition to the insurance required to be maintained
by Tenant as elsewhere provided in this Lease, maintain or cause to be
maintained (a) workmen's compensation insurance covering all persons employed in
connection with Tenant's Work, in an amount at least equal to the minimum amount
of such insurance required by law and (b) such builder's risk (completed value
form) or similar insurance in respect of the demised premises as Landlord may
reasonably require, naming Landlord on such policy or policies as its interest
may appear. Tenant shall deliver to Landlord such fully paid-for policies (or
certificates thereof), together with proof of payment, at least 10 days prior to
the commencement of any Tenant's Work. Such policies shall (x) be issued by
companies satisfactory to Landlord, (y) contain a provision whereby the same
cannot be cancelled unless Landlord is given at least 20 days' prior written
notice of such cancellation and (z) include a clause or endorsement whereby the
insurer waives any rights of subrogation against Landlord or permits the
insured, prior to any loss, to agree with a third party to waive any claim it
might have against said third party without invalidating the coverage under the
insurance. The waiver of subrogation or permission for waiver of claim referred
to in clause (z) of the preceding sentence shall extend to Landlord and its
agents and their respective employees. Tenant hereby releases Landlord,
Landlord's partners or principals, disclosed or undisclosed, and its agents and
their respective employees in respect of any claim (including a claim for
negligence) which Tenant might otherwise have against Landlord, Landlord's
partners or principals, disclosed or undisclosed, or its agents or their
respective employees arising in connection with any matter with respect to which
Tenant is required to furnish insurance pursuant to the provisions of this
paragraph.

     (m) Tenant shall pay, and shall indemnify and hold harmless Landlord from
and against, any and all claims, liabilities, losses, damages, expenses and
costs (including, without limitation, attorneys' fees), obligations and charges
of every kind and nature whatsoever, which shall arise out of, result from or be
incurred in connection with Tenant's Work. Landlord shall have no obligation
whatsoever during the term of this Lease to make any repairs, changes,
alterations or replacements, structural or otherwise, in or to the demised
premises or to the utility, heating, air conditioning, electrical and plumbing
systems servicing the demised premises which shall arise out of or result from
the performance of Tenant's Work or any defects therein. Tenant shall, at its
sole cost and expense, make or cause to be made any such repairs, changes,
alterations or replacements whether such repairs, changes, alterations or
replacements are required to be made to the demised premises or elsewhere in the
Building.

                                       9
<PAGE>   26
     44.  (a) Tenant shall purchase electric energy from Landlord and shall from
time to time, within ten (10) days after demand (accompanied by Landlord's
computation of the amount then due), pay to Landlord all charges for Tenant's
consumption of electric energy as measured by Landlord's submeters. The charge
paid by Tenant to Landlord shall be determined by reference to the public
utility rate schedule for (i) the entire Building, but as if Tenant were the
only occupant or (ii) the demised premises, as if Tenant were to purchase
electric energy solely for the demised premises, directly from the public
utility company, then supplying electricity to the Building, whichever is the
higher.

          (b) If permitted by law and provided Landlord will not be adversely
affected thereby Tenant shall have the option to require that Landlord
discontinue furnishing electric energy to Tenant, in which event the provisions
of paragraph (a) of this Article shall not apply. For the purposes of the
preceding sentence Landlord shall be deemed to be adversely affected only if
Tenant's exercise of the option contained in such sentence shall (i) cause
Landlord to be required to directly meter any other space in the Building. In
the event of such discontinuance Tenant shall, at Tenant's sole cost and
expense, make all arrangements for and cause all such electric energy to be
furnished to the demised premises, including, without limitation, the
furnishing, installing and maintaining of meters, and, from the meters, other
components of the electrical system to and within the demised premises. Landlord
shall afford Tenant and its contractors any necessary access to those portions
of the Building outside the demised premises which may be necessary

                                       10
<PAGE>   27
for such work, under such reasonable conditions as Landlord shall establish.
Such work shall be performed in accordance with the provisions of subparagraphs
43(d), (e), (f), (h), (j), (k), (l) and (m) and the first sentences of
subparagraphs 43(c), (i) and (n). Tenant shall not permit any electric energy
facility to be overloaded. Landlord shall not be liable to Tenant in damages or
otherwise for any failure of Tenant to make arrangements for or to obtain any
such electric energy. Landlord shall provide and maintain feeders, risers and
wiring necessary to provide electric energy to a location designated by Landlord
for the installation of Tenant's meters.

          (c)  Landlord shall have the right at any time to discontinue
furnishing electric energy to Tenant. If Landlord shall exercise such right or
if Landlord shall be required by law to discontinue furnishing electric energy
to Tenant, then the provisions of paragraph (a) of this Article shall not
apply. In either of such events Landlord shall, at Landlord's sole expense,
make all arrangements for and cause all such electric energy to be furnished
directly to the demised premises, including, without limitation, the furnishing
and installing of meters which thereafter shall be maintained by Tenant, and,
from the meters, other components of the electrical system to and within the
demised premises. Tenant shall afford Landlord and Landlord's contractors
access to the demised premises at all reasonable times for the purpose
of fulfilling its obligations under the preceding sentence.

          (d)  Tenant shall not be released or excused from the performance of
any of its obligations under this Lease for any failure or for interruption or
curtailment of any such electric energy, for any reason whatsoever, and no such
failure, interruption or curtailment shall constitute a constructive or partial
eviction. Notwithstanding the foregoing provision, if electrical service to the
demised premises is unavailable as the result of Landlord's gross negligence or
willful misconduct, and if such unavailability of electrical service shall
continue for more than one business day, then fixed rent and additional rent
shall be abated for each full business day of such unavailability.

          (e)  Notwithstanding anything to the contrary contained in this Lease,
(i) Landlord shall, at Landlord's sole cost and expense, maintain and promptly
make all repairs, ordinary and extraordinary, to all components of the
electrical system from the Tenant's meters to the demised premises, except for
the repair of conditions resulting from (x) defects in workmanship or materials
in work done by Tenant or Tenant's contractors or (y) the acts or omissions of
Tenant or its officers, agents, servants, employees or contractors, and (ii)
Tenant shall at Tenant's sole cost and expense, make all other repairs, ordinary
and extraordinary, to such electrical system.

          (f)  Landlord represents that present electric service to the demised
premises is not less than 700 amperes as measured at the meter.

                                       11
<PAGE>   28
     45.  (a)  Tenant, at its expense, shall maintain at all times during the
term of this Lease and at all times when Tenant is in possession of the demised
premises public liability insurance in respect of the demised premises and the
conduct or operation of business therein, with Landlord and Landlord's managing
agent, if any, as additional named insureds, with limits of not less than One
Million ($1,000,000) Dollars for bodily injury or death to any one person and
Three Million ($3,000,000) Dollars for bodily injury or death to any number of
persons in any one occurrence, and One Hundred Thousand ($100,000) Dollars for
property damage.

          (b)  Tenant shall deliver to Landlord such policies or certificates
of such policies prior to the earlier to occur of (i) the date upon which
Tenant is given access to the demised premises, and (ii) the commencement of
the term of this Lease. Tenant shall procure and pay for renewals of such
insurance from time to time before the expiration thereof, and Tenant shall
deliver to Landlord and any additional named insureds such renewal policy or
certificate at least thirty (30) days before the expiration of any existing
policy. All such policies shall be issued by companies reasonably satisfactory
to Landlord and all such policies shall contain a provision whereby the same
cannot be cancelled or modified unless Landlord and any additional named
insureds are given at least thirty (30) days' prior written notice of such
cancellation or modification, including, without limitation, any cancellation
resulting from the non-payment of premiums. Landlord shall have the right at
any time and from time to time, but not more frequently than once every two
years, to require Tenant to increase the amount of the insurance maintained by
Tenant under this Article, so that the amount thereof, as reasonably determined
by Landlord, adequately protects the interest of Landlord.

          (c)  Tenant shall secure an appropriate clause in, or an endorsement
upon, each insurance policy obtained by it and covering or applicable to the
demised premises or the personal property, fixtures and equipment located
therein or thereon, pursuant to which the insurance company waives subrogation
or permits the insured, prior to any loss, to agree with a third party to waive
any claim it might have against said third party without invalidating the
coverage under the insurance policy. The waiver of subrogation or permission
for waiver of any claim shall extend to Landlord and its agents and their
respective employees. Landlord and Tenant do hereby release each other and
their respective partners or principals, disclosed or undisclosed, their
respective agents and their respective employees in respect of any claim
(including a claim for negligence) which they might otherwise have against each
other or their respective partners or principals, disclosed or undisclosed, or
their respective agents or their respective employees for loss, damage or
destruction with respect to the real or personal property of either by fire or
other casualty (including rental value or business interest, as the case may
be) occurring during the term of this Lease and normally covered under a fire
insurance policy with extended coverage endorsement in the form then normally
used in respect of similar property in New York County.

                                       12
<PAGE>   29
     46. The provisions of Article 11 of the printed portion of this Lease shall
apply, if Tenant is a corporation, to a transfer (by one or more transfers) of a
majority of the stock of Tenant as if such transfer of a majority of the stock
of Tenant were an assignment of this Lease; but said provisions shall not apply
to transactions with a corporation into or with which Tenant is merged or
consolidated or to which substantially all of Tenant's assets are transferred or
to any corporation which controls or is controlled by Tenant or is under common
control with Tenant, provided that in any of such events (a) the successor to
Tenant has a net worth, computed in accordance with generally accepted
accounting principles, at least equal to the greater of (i) the net worth of
Tenant immediately prior to such merger, consolidation or transfer, or (ii) the
net worth of Tenant herein named on the date of this Lease, and (b) proof
satisfactory to Landlord of such net worth shall have been delivered to Landlord
at least ten (10) days prior to the effective date of any such transaction. The
unqualified certified statement of an independent certified public accountant
with respect to the assets and liabilities of such successor shall be deemed
satisfactory proof with respect to such net worth.

     47.  (a) Supplementing Article 11 of this Lease, Tenant, if it requests
Landlord's consent to an assignment of this Lease or a subletting of all or any
part of the demised premises, shall submit to Landlord in writing a counterpart
of the proposed assignment or subleasing agreement and the name of the proposed
assignee or subtenant, the name and character of its business, the terms of the
proposed assignment or sublease, such information as to its financial
responsibility and standing and any other information as Landlord may reasonably
require. Upon the receipt of such request and information from Tenant, Landlord
shall have an option, to be exercised in writing within thirty (30) days after
such receipt, to cancel and terminate this Lease, if the request is to assign
this Lease or to sublet all or substantially all of the demised premises, or if
the request is to sublet a portion of the demised premises only, to cancel and
terminate this Lease with respect to such portion, in each case as of the date
set forth in Landlord's notice of exercise of such option, which shall be not
less than sixty (60) days nor more than one hundred twenty (120 days) following
the service of such notice.

          (b) If Landlord shall exercise such option, Tenant shall surrender
possession of the entire demised premises, or the portion which is the subject
of the option, as the case may be, on the date set forth in such notice in
accordance with the provisions of this Lease relating to surrender of the
demised premises at the expiration of the term. If the Lease shall be cancelled
as to a portion of the demised premises only, the rent and additional rent
payable by Tenant under this Lease shall be abated proportionately according to
the ratio that the rentable area in the portion of the space surrendered bears
to the rentable area of the entire demised premises.

          (c) If Landlord shall not exercise the option to cancel the Lease in
whole or in part as above provided, and Tenant is not in default hereunder, then
Landlord's consent to such request shall not be unreasonably withheld or
delayed, provided that:

               (i) The proposed assignee or subtenant shall use the demised
premises, or the relevant part thereof, solely for executive and general offices
and, in Landlord's reasonable judgment the proposed assignee or subtenant is
engaged in a business and the demised premises, or the relevant part thereof,
will be used in a manner which (a) is in keeping with the then standards of the
Building and (b) will not violate any negative covenant as to use contained in
any other lease of space in the Building.

               (ii) The proposed assignee or subtenant is a reputable person of
good character and with sufficient financial worth considering the
responsibility involved, and Landlord has been furnished with reasonable proof
thereof.

                                       13
<PAGE>   30
          (iii) Neither (a) the proposed assignee or subtenant nor (b) any
person which, directly or indirectly, controls, is controlled by, or is under
common control with, the proposed assignee or subtenant or any person who
controls the proposed assignee or subtenant, is then an occupant of any part of
the Building.

          (iv) The proposed assignee or subtenant is not a person with whom
Landlord is then negotiating the lease of space in the Building.

          (v) The form of the proposed sublease or assignment shall be in form
reasonably satisfactory to Landlord and shall comply with the applicable
provisions of this Article.

          (vi) There shall not be more than two (2) subtenants in the demised
premises.

          (vii) Tenant shall not have (a) advertised or publicized in any way
the availability of the demised premises without prior notice to and approval by
Landlord, nor shall any advertisement state the name (as distinguished from the
address) of the Building or the proposed rental, (b) listed the demised premises
for subletting, whether through a broker, agent, representative, or otherwise at
a rental rate less than the lesser of (1) the fixed rent and additional rent
then payable hereunder for such space, or (2) the fixed rent and additional rent
at which Landlord is then offering to lease comparable space in the Building.

     (d) In no event shall any assignment or subletting to which Landlord may
have or may not have consented, release Tenant from is obligations under this
Lease, nor constitute consent to further assignment or subletting.

     (e) If Landlord shall decline to give its consent to any proposed
assignment or sublease, or if Landlord shall exercise any of its options under
paragraph (a) of this Article, Tenant shall indemnify, defend and hold harmless
Landlord against and from any and all loss, liability, damages, costs and
expenses (including, without limitation, reasonable attorneys' fees and
expenses) resulting from any claims that may be made against Landlord by the
proposed assignee or subtenant or by any brokers or other persons claiming a
commission or similar compensation in connection with the proposed assignment or
sublease.

     (f) If this Lease is assigned and Landlord consents to such assignment, any
change, alteration or modification of this Lease after such assignment which
shall have the effect of increasing or enlarging Tenant's obligation or
responsibility under this Lease shall not, to the extent only of such increases
or enlargement, be binding upon Tenant and, notwithstanding such change,
alteration or modification, Tenant shall remain liable for the performance of
Tenant's obligations under this Lease except for any such change, alteration or
modification.

     (g) With respect to each and every sublease or subletting authorized by
Landlord under the provisions of this Lease, it is further agreed:

          (i) No subletting shall be for a term ending later than one (1) day
prior to the expiration date of this Lease.

                                       14
<PAGE>   31
         (ii)  no sublease shall be valid, and no subtenant shall take
possession of the demised premises or any part thereof, until an executed
counterpart of such sublease has been delivered to Landlord.

         (iii)  Each sublease shall provide that it is subject and subordinate
to this Lease and to the matters to which this Lease is or shall be subordinate,
and that in the event of termination, re-entry or dispossess by Landlord under
this Lease Landlord may, at its option, take over all of the right, title and
interest of Tenant, as sublessor, under such sublease, and such subtenant shall,
at Landlord's option, attorn to Landlord pursuant to the then executory
provisions of such sublease, except that Landlord shall not (a) be liable for
any previous act or omission of Tenant under such sublease, (b) be subject to
any offset, not expressly provided in such sublease, which theretofore accrued
to such subtenant against Tenant, or (c) be bound by any previous modification
of such sublease or by any previous prepayment of more than one month's rent.

     (h)  In the event that (i) Landlord fails to exercise its option under
paragraph (a) of this Article and consents to a proposed assignment or
sublease, and (ii) Tenant fails to execute and deliver the assignment or
sublease to which Landlord consented within sixty (60) days after the giving of
such consent, then Tenant shall again comply with all of the provisions and
conditions of paragraph (a) of this Article before assigning this Lease or
subletting all or part of the demised premises.

     (i)  If Landlord exercises its option to terminate this Lease in part in
any case where Tenant desires to sublet part of the demised premises, then
Tenant shall pay to Landlord, upon demand, the costs incurred by Landlord in
physically separating such part of the demised premises from the balance of the
demised premises and in complying with any laws and requirements of any public
authorities and insurance bodies relating to such separation.

     (j)  If Landlord shall give its consent to any assignment of this Lease or
to any sublease, Tenant shall in consideration therefor pay to Landlord, as
additional rent:

         (i)  in the case of an assignment, an amount equal to one-half (1/2) of
all sums and other considerations paid to Tenant by the assignee for or by
reason of such assignment (including, but not limited to, sums paid for the sale
or rental of Tenant's fixtures, leasehold improvements, equipment, furniture,
furnishings or other personal property), less (A) the then fair and reasonable
value of any such equipment, furniture, furnishings and other personal property
which may be moved without damage to the demised premises which are separately
sold or rented by Tenant and (B) the then net unamortized or undepreciated cost
of any such fixtures, improvements, equipment, furniture, furnishings and other
personal property which are not separately sold or rented but remain in the
demised premises after such assignment, determined on the basis of Tenant's
federal income tax returns; and

         "(ii)  in the case of a sublease, one-half (1/2) of (A) any rents,
additional charges or other considerations payable under the sublease to Tenant
by the subtenant which is in excess of the fixed rent and additional rent
accruing during the term of the sublease in respect of the subleased space (at
the rate per square foot payable by Tenant hereunder) pursuant to the terms
hereof (including, but not limited to, sums paid for the sale or rental of
Tenant's fixtures, leasehold improvements, equipment, furniture or other
personal property, less (x) the then fair and reasonable value of any such
equipment, furniture, furnishings and other personal property which may be
moved without damage to the demised premises and which are separately sold or
rented by Tenant, and (y) the then net unamortized or undepreciated cost of any
such fixtures, improvements, equipment, furniture, furnishings and other
personal property which are not separately sold or rented but remain in the
subleased space during the term of such sublease, apportioned to the term
thereof and determined on the basis of Tenant's federal income tax returns),
less (B) in the case of a sublease, the term of which commences prior to
January 1, 1984 and which sublease is for a term, including extensions &
renewals thereof, of 5 years or less, any reasonable brokerage commission paid
by Tenant in connection with such sublease."

                                       15
<PAGE>   32
tures, leasehold improvements, equipment, furniture or other personal property)
less (A) the then fair and reasonable value of any such equipment, furniture,
furnishings and other personal property which may be moved without damage to the
demised premises which are separately sold or rented by Tenant and (B) the then
net unamortized or undepreciated cost of any such fixtures, improvements,
equipment, furniture, furnishings and other personal property which are not
separately sold or rented but remain in the subleased space during the term of
such sublease, apportioned to the term thereof and determined on the basis of
Tenant's federal income tax returns). The sum payable under this paragraph shall
be paid to Landlord as and when payable by the subtenant to Tenant.

     "48. (a)  In every case in which Tenant is required by the terms of this
Lease to pay to Landlord a sum of money (including, without limitation, payment
of fixed and additional rent) and payment is not made within five (5) days
after the same shall become due, Tenant shall pay as additional rent hereunder,
interest on such sum or so much thereof as shall be unpaid from the date it
becomes due until it is paid. Such interest shall be computed at a rate which
shall be two percent (2%) per month; provided, however, in no event shall such
interest be in excess of the highest rate of interest which shall from time to
time be permitted under the laws of the State of New York to be charged on late
payments of sums of money due pursuant to the terms of a lease. The minimum
interest charge in any and all instances shall be $100.00.

          (b)  The interest payable pursuant to paragraph (a) above shall be (i)
payable on demand and (ii) without prejudice or any of Landlord's rights and
remedies hereunder, at law or in equity for nonpayment or late payment of rent
or other sum and in addition to any such rights and remedies. No failure by
Landlord to insist upon the strict performance by Tenant of Tenant's obligations
to pay interest as provided in this Article shall constitute a waiver by
Landlord of its right to enforce the provisions of this Article in any instance
thereafter occurring. The provisions of this Article shall not be construed in
any way to extend the grace periods or notice periods provided for in Article 17
of this Lease."

      49. If Tenant is in arrears in payment of rent or additional rent, Tenant
waives Tenant's right, if any, to designate the items against which any payments
made by Tenant are to be credited, and Tenant agrees that Landlord may apply any
payments made by Tenant to any items Landlord sees fit, irrespective of and
notwithstanding any designation or request by Tenant as to the items against
which any such payments shall be credited.

     50.  Tenant covenants, warrants and represents that no broker was
instrumental in consummating this Lease and that Tenant had no conversations or
negotiations with any broker concerning the leasing of the demised premises.
Tenant agrees to indemnify and hold harmless Landlord against and from any
claims for any brokerage commissions and all costs, expenses and liabilities in
connection therewith, including, without limitation, attorneys' fees and
expenses arising out of any conversations or negotiations had by Tenant with any
broker.

     51.  Tenant shall, at any time and from time to time (but not more often
that four (4) times in any calendar year), as requested by Landlord, upon not
less than ten (10) days' prior notice, execute and deliver to Landlord a
statement certifying that this Lease is unmodified and in full force and effect
(or if there have been modifications, that the same is in full force and effect
as modified and stating the modifications), certifying the dates to which the
rent and additional rent have been paid, stating the amount of security on
deposit with Landlord pursuant to this Lease, stating whether or not, to the
best knowledge of Tenant, Landlord is in default in performance of any of its
obligations under this Lease, and, if so, specifying each such default of which
Tenant shall have knowledge, and stating whether or not, to the best knowledge
of Tenant, any event has occurred which with the giving of notice or passage of
time, or both, would constitute such a default, and, if so,

                                       16
<PAGE>   33
specifying each such event, it being intended that any such statement
delivered pursuant hereto shall be deemed a representation and warranty to be
relied upon by Landlord and by others with whom Landlord may be dealing,
regardless of independent investigation.

     52.  Tenant shall look only to Landlord's estate and property in the
Building and the land on which the Building is located for the satisfaction of
Tenant's remedies for the collection of a judgment (or other judicial process)
requiring the payment of money by Landlord in the event of any default or breach
by Landlord hereunder, and no other property or assets of Landlord or its
partners or principals, disclosed or undisclosed, shall be subject to lien,
levy, execution or other enforcement procedure for the satisfaction of Tenant's
remedies under or with respect to this Lease, the relationship of Landlord and
Tenant hereunder or Tenant's use or occupancy of the demised premises; and if
Tenant shall acquire a lien on such other property or assets by judgment or
otherwise, Tenant shall promptly release such lien by executing and delivering
to Landlord an instrument to that effect prepared by Landlord.

     53.  Irrespective of the place of execution or performance, the Lease shall
be governed by and construed in accordance with the laws of the State of New
York. If any provision of this Lease or the application thereof to any person or
circumstance shall, for any reason and to any extent, be invalid or
unenforceable, the remainder of this Lease and the application of that provision
to other persons or circumstances shall not be affected but rather shall be
enforced to the extent permitted by law. This Lease shall be construed without
regard to any presumption or other rule requiring construction against the party
causing this Lease or any part thereof to be drafted. Each covenant, agreement,
obligation or other provision of this Lease on Tenant's part to be performed,
shall be deemed and construed as a separate and independent covenant of Tenant,
not dependent on any other provision of this Lease. All terms and words used in
this Lease, regardless of the number or gender in which they are used, shall be
deemed to include any other number and any other gender as the context may
require.

     54.  If Tenant shall request Landlord's approval or consent and Landlord
shall fail or refuse to give such consent or approval, Tenant shall not be
entitled to any damages for any withholding or delay of such approval or consent
by Landlord, it being intended that Tenant's sole remedy shall be an action for
injunction or specific performance and that such remedy shall be available only
in those cases where Landlord shall have expressly agreed in writing not to
unreasonably withhold its consent or approval or where as a matter of law
Landlord may not unreasonably withhold its consent or approval. The foregoing
waiver by Tenant of its entitlement to damages on account of Landlord's failure
or refusal to give its consent or approval shall not apply if the court, in an
action for injunction or specific performance, shall determine beyond right of
appeal that

                                       17
<PAGE>   34
Landlord's failure or refusal to give its consent or approval was in bad faith.

     55.  Any default by Tenant under any other lease of space in the Building
shall be deemed a default of the same nature under this Lease.

     56.  Supplementing Article 2 of this Lease, in no event shall the
permitted use of the demised premises be deemed to include examining patients,
giving medical advice, prescribing drugs or any other medical use.

     57.  Deleted  Prior to Execution.

     58.  Amending Article 3 - Alterations. Notwithstanding anything to the
contrary contained in Article 3:

          (a)  Tenant may paint, repaint, decorate and re-decorate the demised
premises and install and remove movable partitions therein without Landlord's
consent provided that any damage to the demised premises due to such
installation or removal is repaired by Tenant;

          (b)  After the completion of Tenant's Work Tenant may, with the
consent of Landlord, which consent shall not be unreasonably withheld, install
and remove non-loadbearing partitions within the demised premises provided that
any damage to the demised premises due to such installation or removal is
repaired by Tenant;

          (c)  Upon the expiration of this Lease, Tenant shall not be required
to remove any equipment or other installations made in the demised premises by
Landlord.

     59.  Amending Article 17 - Default. In subsection (1) of Article 17, the
words "ten (10) days" are substituted for the words "five (5) days" wherever
the latter may ap-

                                       18

<PAGE>   35
pear, and the words "five (5) days" are substituted for the words "three (3)
days" wherever the latter may appear. In subsection (2) of Article 17, the
phrase   ", after 10 days' written notice thereof shall be given to Tenant:"
shall be added between the word "required" and the colon on the fifth line of
said subsection.

     60. Amending Article 21 - End of Term. In the fourth line of Article 21,
the phrase "and tear and damage by fire or other casualty" is inserted between
the words "ordinary wear" and the word "excepted."

     61. Amending Article 27 - Bills and Notices. In the seventh line of
Article 27, the words "served upon an officer of Tenant" are substituted in
place of the word "left", and in the fourth line from the end of Article 27 the
word "served" is substituted in place of the word "left."

     62. Deleted Prior to Execution.

     63. Subject to the provisions of Article 30 of this Lease and provided
Tenant shall give not less than twelve hours' advance notice to Landlord of
Tenant's need therefor, Landlord shall furnish after-hours heat to the demised
premises at such hourly rates as may be established for the Building by
Landlord from time to time.

     64. Notwithstanding anything to the contrary contained in Article 7 or 40
of this Lease, with respect to the ground lease described in Article 40 and
with respect to any existing mortgage(s) covering the Building, Landlord
agrees to use its best efforts, but without cost, liability or expense, to
obtain non-disturbance and attornment agreements from the ground lessor under
such ground lease (and from the holder(s) of any existing mortgage(s), which
agreements shall be in form and substance reasonably satisfactory to Tenant.)
The failure of Landlord to obtain such non-disturbance and attornment
agreements shall be without liability on the part of Landlord and without any
reduction, diminution or abatement of Tenant's obligations hereunder.

                                       19
<PAGE>   36
     65. Landlord represents to Tenant that neither the making, execution or
delivery of, nor any of the terms, covenants or conditions contained in this
Lease is in violation of the ground lease described in Article 40 hereof.

     66. Tenant, at its sole cost and expense, may arrange to change its current
electric service so that it is directly metered by Con Edison provided that at
the expiration of the Lease Tenant arranges, at its sole cost and expense, to
remodify the electric metering service to the Demised Premises to the condition
which exists as of the date of this Agreement.

     67. Tenant shall use and occupy the demised premises only for the purposes
stated in Article 2 of the Lease and for no other purpose. Without limiting the
generality of the foregoing, it is an express condition of this Lease and Tenant
expressly warrants and agrees that at no time and in no event may the demised
premises, or any portion thereof, be used for residential purposes.

     68. Tenant, at its own cost and expense, shall arrange for the removal of
all rubbish from the demised premises and from the Building in accordance with
any and all applicable municipal codes and regulations and in accordance with
any rules and regulations of the Building which, in the judgment of Landlord,
are necessary for the proper operation of the Building.

     69. Tenant expressly acknowledges and agrees that Landlord has not made and
is not making, and Tenant, in executing and delivering this Lease, is not
relying upon any warranties, representations, promises or statements, except to
the extent that the same are expressly set forth in this Lease.

     70. Irrespective of the place of execution or performance, this Lease shall
be governed by and construed in accordance with the laws of the State of New
York. If any provision of this Lease or the application thereto to any person or
circumstances for any reason and to any extent, be invalid or unenforceable, the
remainder of this Lease and the application of that provision to other persons
or circumstances shall not be affected but rather shall be enforced to the
extent permitted by law. This Lease shall be construed without regard to any
presumption or other rule requiring construction against the party causing this
Lease or any part thereof to be drafted. Each covenant, agreement, obligation,
or other provision of this Lease on Tenant's part to be performed shall be
deemed and construed as a separate and independent covenant of Tenant, not
dependent on any other provision of this Lease. All terms and words used in this
Lease, regardless of the number or gender in which they are used, shall be
deemed to include any other number and any other gender as the content may
require.

     71. The Demised Premises comes equipped with an air conditioning system.
Throughout the term of this Lease, Tenant at Tenant's sole cost and expense
shall maintain the air conditioning system in working order and shall provide a
maintenance and service contract for the air conditioning system throughout the
Demised Premises. Landlord reserves the right to purchase such a service
contract at Tenant's sole cost and expense in the event that Tenant fails to
provide a service contract as herein required.

     72. Landlord shall have the option (hereinafter the "Elevator Option") to
reclaim an area on each floor within the Demised Premises immediately adjacent
to the two passenger elevators located in the southwestern portion of the
Demised Premises. Such area shall be equal in size to the area occupied by the
existing passenger elevators. Landlord may only exercise the Elevator Option for
the purpose of installing a third passenger elevator (the "Proposed Elevator").
Landlord shall exercise the Elevator Option in writing 120 days in advance of
the date Landlord shall reclaim the area required for the Proposed Elevator.
Landlord shall proportionately reduce the rent and additional rent equal to the
percentage that the area reclaimed for the Proposed Elevator bears to the total
area of the floor. Landlord shall bear all costs and expenses associated with
severing the area for the Proposed Elevator from the Demised Premises and
Landlord at its sole cost and expense shall (i) reconstruct the area of the
Demised Premises immediately adjacent to the Proposed Elevator to match the
condition and repair of such immediately adjacent space, and (ii) shall relocate
any of Tenant's equipment or fixtures which may be installed in the area of the
Proposed Elevator.

                                       20
<PAGE>   37
                                   EXHIBIT A

                       401 PARK AVENUE SOUTH, 12TH FLOOR

                                  [FLOOR PLAN]
                             [401 PARK AVENUE SOUTH
                                    12TH FLOOR]

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