Document:

<PAGE>   1

                                                                   EXHIBIT 10.18

                                  OFFICE LEASE

                             MARINA BUSINESS CENTER

                            SPIEKER PROPERTIES, L.P.,
                        a California limited partnership,
                                  as Landlord,
                                       and
                                   L90, INC.,
                             a Delaware corporation,
                                   as Tenant.

<PAGE>   2

                                  OFFICE LEASE

THIS OFFICE LEASE ("LEASE") is made between SPIEKER PROPERTIES, L.P., a
California limited partnership ("LANDLORD"), and L90, INC., a Delaware
corporation ("TENANT"), as of October 25, 2000 (the "DATE OF THIS LEASE").

                             BASIC LEASE INFORMATION

PROJECT:       Marina Business Center, Marina del Rey, California

BUILDING:      4499 Glencoe Avenue, Marina del Rey, California

DESCRIPTION OF PREMISES: Suite: 150 (the Premises is as outlined in red or as
shown in cross-hatching on EXHIBIT B).

RENTABLE AREA OF PREMISES: 23,729 rentable square feet

PERMITTED USE: General offices uses, internet sales uses and network hosting and
management, all to the extent consistent with a first class office building
only.

SCHEDULED TERM COMMENCEMENT DATE: January 1,2001

SCHEDULED INITIAL TERM: 60 months   SCHEDULED EXPIRATION DATE: December 31, 2005

BASE RENT:

(a) Initial Annual Base Rent $811,531.80   (c) Subject to increase pursuant to
                                               Paragraph 3.1(b) as follows:

(b) Initial Monthly Installment of Base Rent: $67,627.65

<TABLE>
<CAPTION>
                                                         Monthly Installment
                               Year of Initial Term          of Base Rent
                               --------------------          ------------
                               <S>                       <C>
                                         1                   $67,627.65
                                         2                   $70,332.76
                                         3                   $73,146.07
                                         4                   $76,071.91
                                         5                   $79,114.79
</TABLE>

SECURITY DEPOSIT: $750,000.00

ESTIMATED FIRST YEAR OPERATING EXPENSES: $21,493.00 per month

BASE YEAR: The calendar year 2001.

TENANT'S PROPORTIONATE SHARE OF BUILDING: 51.05%        OF PROJECT: 9.13%

<TABLE>
<S>                                                             <C>
PARKING: Four (4) passes per 1,000 rentable square feet of      OCCUPANCY DENSITY: Six (6) persons per 1,000 rentable square
         the Premises, of which four (4) spaces in front of                        feet of the Premises
         the Building shall be identified by Landlord, at
         Tenants cost, as reserved for Tenant's visitors
         (the "VISITOR SPACES")
</TABLE>

TENANT'S NAICS CODE: 541512

TENANT CONTACT: See address for notices, as set forth herein.

<TABLE>
<S>                        <C>                                        <C>
ADDRESSES FOR NOTICES:     To: Tenant                                 To: Landlord
                           Before Term Commencement Date:             13160 Mindinao Way
                           2020 Santa Monica Boulevard                Suite 184
                           Suite 400                                  Marina del Rey, California 90292
                           Santa Monica, California 90404             Attn: Elva Dedeurwaerder
                           Attn: Peter Bryant and General             Fax No.: (310)821-7709
                               Counsel
                           Fax No.: (310)315-1369
                           On and After Term Commencement
                           Date:
                           4499 Glencoe Avenue
                           Suite 150
                           Marina del Rey, California 90292
                           Attn: Peter Bryant and General
                               Counsel
                           Fax No.: (310)315-1369
</TABLE>

TENANT'S BILLING ADDRESS [IF DIFFERENT FROM NOTICE ADDRESS]: See address for
notices, as set forth herein.

LANDLORD'S REMITTANCE ADDRESS:        P.O. Box 60077
                                      Department 12281
                                      Los Angeles, California 90060-0077

GUARANTOR: None.

<PAGE>   3

        IN WITNESS WHEREOF, the parties hereto have executed this Lease,
consisting of the foregoing Basic Lease Information, the following Standard
Lease Provisions consisting of PARAGRAPHS 1 THROUGH 24 (THE "STANDARD LEASE
PROVISIONS") and Exhibits A, B, C, D, and E all of which are incorporated herein
by this reference (collectively, this "LEASE"). In the event of any conflict
between the provisions of the Basic Lease Information and the provisions of the
Standard Lease Provisions, the Standard Lease Provisions shall control.

"LANDLORD"                                  "TENANT"

                                            L90, INC.,
SPIEKER PROPERTIES, L.P.,                   a Delaware corporation
a California limited partnership,

By: Spieker Properties, Inc.                By: /s/ LUCREZIA BICKERTON
    a Maryland corporation,                    ---------------------------------
    its general partner                       Name: Lucrezia Bickerton
                                                   ----------------------------
                                              Title: Asst. Secretary, VP Finance
                                                    ---------------------------

By: /s/ THOMAS A. HERTA                     By: /s/ JOHN BOHAN
   ---------------------------------           ---------------------------------
     Name: Thomas A. Herta                       Name: John Bohan
          -------------------------------             --------------------------
     Title: Vice President                       Title: CEO
           ------------------------------              -------------------------

By:                                         Date: 10-26-00
   ---------------------------------             -------------------------------
     Name:
          -------------------------------
     Title:
           ------------------------------

Date: 10/27/00
     -------------------------------

                                      -2-
<PAGE>   4

                            STANDARD LEASE PROVISIONS

1. PREMISES.

        Landlord hereby ]cases to Tenant and Tenant hereby leases from Landlord,
subject to all of the terms and conditions set forth herein, those certain
premises (the "PREMISES") described in the Basic Lease Information and as
outlined in red or as shown in the cross-hatched markings on the floor plan
attached hereto as EXHIBIT B. The parties agree that for all purposes hereunder
the Premises shall be stipulated to contain the number of square feet of
rentable area described in the Basic Lease Information. The Premises are located
in that certain office building (containing 46,478 rentable square feet of
space) (the "BUILDING") whose street address is as shown in the Basic Lease
Information, and such rentable area shall not be subject to remeasurement or
modification. The Building is located on that certain land which is also
improved with landscaping, parking facilities and other improvements and
appurtenances. Such land, together with all such improvements and appurtenances
and the Building, are all or part of a project which may consist of more than
one building and additional facilities, as described in the Basic Lease
Information (containing 260,026 rentable square feet of space) (collectively
referred to herein as the "PROJECT"). However, Landlord reserves the right to
make such changes, additions and/or deletions to such land, the Building and the
Project and/or the common areas and parking or other facilities thereof as it
shall determine from time to time, provided that, in connection with such
changes, additions and/or deletions (i) Tenant's obligations under Paragraph 3
of this Lease shall not be increased as a result thereof, and (ii) Landlord
agrees to use commercially reasonable efforts to avoid material and adverse
interference with Tenant's use of or access to the Premises and the parking
facilities servicing the same. During the Term, Landlord shall maintain the
Building and Project in a manner at least consistent with the manner in which
the Building and Project are being maintained as of the date of this Lease.
Subject to Landlord's reasonable rules and regulations, Tenant shall have access
to the Premises and the parking facilities servicing the same, twenty-four (24)
hours a day, seven (7) days a week.

2. TERM.

        (a) Unless earlier terminated in accordance with the provisions hereof,
the term of this Lease (the "TERM") shall be as set forth in the Basic Lease
Information; provided, however, in the event the Term Commencement Date (defined
below) occurs on a date other than the first day of a calendar month, there
shall be added to the Term the partial month ("PARTIAL LEASE MONTH") from the
Term Commencement Date to (but not including) the first day of the calendar
month following the Term Commencement Date.

        (b) Subject to the provisions of this Paragraph 2, the Term shall
commence on the date (the "TERM COMMENCEMENT DATE") which is the earlier of (i)
January 1, 2001, and (ii) the date Tenant commences use of any portion of the
Premises for any material business purpose (specifically excluding moving in).
Notwithstanding the foregoing, in the event that Landlord is delayed in
delivering the Premises by reason of any act or omission of Tenant, the Term
Commencement Date shall be (unless Tenant takes possession or commences use of
the Premises prior thereto) the date the Premises would have been delivered by
Landlord had such Tenant caused delay(s) not occurred. This Lease shall be a
binding contractual obligation effective upon execution hereof by Landlord and
Tenant, notwithstanding the later commencement of the Term. Tenant acknowledges
that Tenant has inspected and accepts the Premises in their present condition,
"as is". Accordingly, Tenant further acknowledges and agrees that Landlord shall
not be obligated to provide or pay for any improvements relating to the
Premises.

        (c) Landlord may deliver to Tenant Landlord's standard form "Start-Up
Letter" for Tenant's acknowledgment and confirmation of the Term Commencement
Date. Tenant shall execute and deliver such Start-Up Letter to Landlord within
ten (10) business days after receipt thereof, but Tenant's failure or refusal to
do so shall not negate Tenant's acceptance of the Premises or affect
determination of the Term Commencement Date.

        (d) Tenant's Entry Into the Premises Prior to Term Commencement Date.
Subject to Landlord's reasonable, nondiscriminatory rules and regulations
(including, without limitation, the requirement of evidence of insurance
acceptable to Landlord), Landlord shall allow Tenant access to the Premises
prior to the Term Commencement Date for the purpose of Tenant installing
furniture, equipment or fixtures (including Tenant's data and telephone
equipment) in the Premises. Prior to Tenant's entry into the Premises as
permitted by the terms of this Paragraph 2(d), Tenant shall coordinate with
Landlord the timing and purpose of Tenant's entry. Except to the extent of
Landlord's negligence or willful misconduct, Tenant shall hold Landlord harmless
from and indemnify, protect and defend Landlord against any loss or damage to
the Building or Premises and against injury to any persons caused by Tenant's
actions pursuant to this Paragraph 2(d). In addition, Tenant shall reimburse
Landlord for any costs incurred by Landlord as a result of Tenant's entry into
the Premises in accordance with the terms of this Paragraph 2(d), but Tenant
shall not be charged for services and utilities, bathrooms, and elevators during
any such early entry.

        (e) In the event the Term Commencement Date does not occur by March
1,2001 (the "OUTSIDE COMMENCEMENT DATE"), which date shall be extended by
governmental delays (not to exceed 120 days), delays caused by "Force Majeure,"
as that term is defined in Paragraph 24 of this Lease (not to exceed 60 days)
(provided that in no event shall the Outside Commencement date be extended by
more than 120 days, in the aggregate, for Force Majeure delays and governmental
delays), Tenant shall have the right to terminate this Lease by delivering ten
(10) days' prior notice to Landlord at any time prior to the occurrence of the
Term Commencement Date.

3. RENT AND OPERATING EXPENSES.

        3.1 BASE RENT.

        (a) Subject to the provisions of this Paragraph 3.1, Tenant agrees to
pay during the Term as Base Rent for the Premises the sums specified in the
Basic Lease Information (as increased from time to time as provided in the Basic
Lease Information or as may otherwise be provided in this Lease) ("BASE RENT").

        (b) Base Rent shall increase as set forth in the Basic Lease Information
or as may otherwise be provided in this Lease.

        (c) Except as expressly provided to the contrary herein, Base Rent shall
be payable in equal consecutive monthly installments, in advance, without
deduction or offset, commencing on the Term Commencement Date and continuing on
the first day of each calendar month thereafter. However, the first full monthly
installment of Base Rent shall be payable upon Tenant's execution of this Lease.
If the Term Commencement Date is a day other than the first day of a calendar
month, then the Rent for the Partial Lease Month (the "PARTIAL LEASE MONTH
RENT") shall be prorated based on the actual number of days in the applicable
month. The Partial Lease Month Rent shall be payable by Tenant on the first day
of the calendar month next succeeding the Term Commencement Date. Base Rent, all
forms of additional rent payable hereunder by Tenant and all other amounts,
fees, payments or charges payable hereunder by Tenant (collectively, "ADDITIONAL
RENT") shall (i) each constitute rent payable hereunder (and shall sometimes
collectively be referred to herein as "Rent"), (ii) be payable to Landlord in
lawful money of the United States when due without any prior demand therefor,
except as may be expressly provided to the contrary herein, and (iii) be payable
to Landlord at Landlord's Remittance Address set forth in the Basic Lease
Information or to such other person or to such other place as Landlord may from
time to time designate in writing to Tenant. Any Rent or other amounts payable
to Landlord by Tenant hereunder for any fractional month shall be prorated based
on the actual number of days in the applicable month.

                                      -3-
<PAGE>   5

        3.2 Operating Expenses.

        (a) Subject to the provisions of this Lease, Tenant shall pay to
Landlord pursuant to this Paragraph 3.2 as Additional Rent an amount equal to
Tenant's Proportionate Share (defined below) of Operating Expenses (defined
below) allocable to each Expense Year (defined below) which are in excess of the
amount of the Operating Expenses allocable to the Base Year; provided, however,
that in no event shall any decrease in Operating Expenses for any Expense Year
below Operating Expenses for the Base Year entitle Tenant to any decrease in
Base Rent or any credit against sums due under this Lease. "Tenant's
Proportionate Share" is, subject to the provisions of this Paragraph 3.2, the
percentage number (representing the Premises' share of the Building and the
Project) set forth in the Basic Lease Information. An "Expense Year" is any
calendar year any portion of which falls within the Term.

                (b) "Operating Expenses" means all costs, expenses and
obligations incurred or payable by Landlord because of or in connection with the
operation, ownership, repair, replacement, restoration, management or
maintenance of the Project during or allocable to an Expense Year during the
Term (other than costs, expenses or obligations specifically attributable to
Tenant or other tenants of the Building or Project), all as determined by sound
real estate accounting principles reasonably and consistently applied, including
without limitation the following:

                (i) All property taxes, assessments, charges or impositions and
other similar governmental ad valorem or other charges levied on or attributable
to the Project (including personal and real property contained therein) or its
ownership, operation or transfer, and all taxes, charges, assessments or similar
impositions imposed in lieu or substitution (partially or totally) of the same
(collectively, "TAXES"). "TAXES" shall also include (A) all taxes, assessments,
levies, charges or impositions on any interest of Landlord in the Project, the
Premises or in this Lease, or on the occupancy or use of space in the Project or
the Premises; or on the gross or net rentals or income from the Project,
including, without limitation, any gross income tax, excise tax, sales tax or
gross receipts tax levied by any federal, state or local governmental entity
with respect to the receipt of Rent; or (B) any possessory taxes charged or
levied in lieu of real estate taxes. There shall be excluded from Taxes (i) all
excess profits taxes, franchise taxes, gift taxes, capital stock taxes,
inheritance and succession taxes, estate taxes, federal and state income taxes,
and other taxes to the extent applicable to Landlord's general or net income (as
opposed to rents, receipts or income attributable to operations at the Project),
(ii) any tax penalties, and (III) any amounts payable directly by Tenant or
other tenants; and

                (ii) The cost of all utilities, supplies, equipment, tools,
materials, service contracts, janitorial services, waste and refuse disposal,
landscaping, and insurance (with the nature and extent of such insurance to be
carried by Landlord to be determined by Landlord in its sole and absolute
discretion); insurance deductibles; compensation and benefits of all persons who
perform services connected with the operation, management, maintenance or repair
of the Project (up to the level of the Project director (and/or vice president
responsible for the Project) and building engineer); personal property taxes on
and maintenance and repair of equipment and other personal property; costs and
fees for administration and management of the Project (not to exceed five
percent (5%) of Project revenues in any Expense Year), whether by Landlord or by
an independent contractor, and other management office operational expenses;
rental expenses for or a reasonable allowance for depreciation of, personal
property used in the operation, management, maintenance or repair of the
Project, license, permit and inspection fees; and all inspections, activities,
alterations, improvements or other matters required by any governmental or
quasi-governmental authority or by Regulations (defined below), amortization
over its reasonable useful life (including interest on the unamortized cost at a
rate equal to the "Interest Rate," as that term is defined, below) of the cost
of acquiring or the rental expense of personal property used in the maintenance,
operation and repair of the Project, or any portion thereof the cost of any
capital repairs, replacements or other improvements made to the Project or other
costs incurred in connection with the Project (A) which are intended to reduce
Operating Expenses in connection with the operation or maintenance of the
Project, or any portion thereof to the extent of cost savings reasonably
anticipated by Landlord (based on sound documentation) at the time of such
expenditure to be incurred in connection therewith, or (B) that are required
under any applicable municipal, state, federal or other governmental statutes,
rules, requirements, regulations, laws, standards, orders or ordinances
including, without limitation, zoning ordinances and regulations, and covenants,
easements and restrictions of record (collectively, "REGULATIONS") enacted after
the Term Commencement Date; provided, however, that any such permitted capital
expenditure shall be amortized (with interest at a rate equal to the floating
commercial loan rate announced from time to time by Bank of America, a national
banking association, or its successor, as its prime rate, plus 2% per annum (the
"INTEREST RATE")) over its reasonable useful life; common area repair, operation
and maintenance; security systems or services, if any, deemed reasonably
appropriate by Landlord (but without obligation to provide the same except as
specifically set forth in this Lease); and any other cost or expense incurred or
payable by Landlord in connection with the operation, ownership, repair,
replacement, restoration, management or maintenance of the Project.

        Landlord (x) shall not collect or be entitled to collect from Tenant an
amount in excess of Tenant's Proportionate Share of one hundred percent (100%)
of the Operating Expenses actually paid or incurred by Landlord; and (y) shall
reduce the amount of the Operating Expenses by any refund or discount received
by Landlord in connection with any expenses previously included in the Operating
Expenses (such reduction to be credited to Tenant in the year in which the
refund or discount is received by Landlord). Notwithstanding the foregoing, for
purposes of this Lease, the Operating Expenses shall not, however, include:

                (a) except as specifically set forth above in Paragraph
3.2(b)(ii), bad debt expenses and interest, principal, points and fees on debts
(except in connection with the financing of items which may be included in the
Operating Expenses) or amortization on any mortgage or mortgages or any other
debt instrument encumbering the Building or the Project;

                (b) marketing costs, including leasing commissions, attorneys'
fees in connection with the negotiation and preparation of letters, deal memos,
letters of intent, leases, subleases and/or assignments, space planning costs,
and other costs and expenses incurred in connection with tease, sublease and/or
assignment negotiations and transactions with present or prospective tenants or
other occupants of the Project, including attorneys' fees and other costs and
expenditures incurred in connection with disputes with present or prospective
tenants or other occupants of the Project;

                (c). costs, including permit, license and inspection costs,
incurred with respect to the installation of other tenants' or occupants'
improvements made for tenants or other occupants in the Project or incurred in
renovating or otherwise improving, decorating, painting or redecorating vacant
space for tenants or other occupants in the Project;

                (d) the cost of providing any service directly to and paid
directly by any tenant;

                (e) any costs expressly excluded from the Operating Expenses
elsewhere in this Lease;

                (f) costs of any items (including, but not limited to, costs
incurred by Landlord for the repair or damage to the Project or Building) to the
extent Landlord receives reimbursement from insurance proceeds (such proceeds to
be deducted from the Operating Expenses in the year in which received) or from a
third party (such proceeds to be credited to the Operating Expenses in the year
in which received), except that any deductible amount under any insurance policy
shall be included within the Operating Expenses of the Project);

                (g) except as specifically set forth above in Paragraph
3.2(b)(ii), costs of a capital nature, including, without limitation, capital
improvements, capital repairs and capital equipment;

                (h) rentals and other related expenses for leasing a HVAC
system, elevators, or other items (except when needed in connection with normal
repairs and maintenance of the Project and further excepting from this exclusion
such equipment rented or leased to

                                      -4-
<PAGE>   6

remedy or ameliorate an emergency condition at the Project) which if purchased,
rather than rented, would constitute a capital improvement not included in the
Operating Expenses pursuant to this Lease;

                (i) depreciation, amortization and interest payments, except as
specifically included in the Operating Expenses pursuant to the terms of this
Lease and except on materials, tools, supplies and vendor-type equipment
purchased by Landlord to enable Landlord to supply services Landlord might
otherwise contract for with a third party, where such depreciation, amortization
and interest payments would otherwise have been included in the charge for such
third party's services;

                (j) expenses in connection with services or other benefits which
are not offered to Tenant or for which Tenant is charged for directly but which
are provided to another tenant or occupant of the Project, without charge;

                (k) costs incurred by Landlord due to the violation by Landlord
or any tenant of the terms and conditions of any lease of space in the Project;

                (1) overhead and profit increment paid to Landlord or to
subsidiaries or affiliates of Landlord for goods and/or services in the Project
to the extent the same exceeds the costs of such by unaffiliated third parties
on a competitive basis;

                (m) Landlord's general corporate overhead and general and
administrative expenses, excluding on-site management to the level of Project
director (and/or vice president responsible for the Project) and Project
engineer and on-site accounting attributable to the Project, but including costs
associated with the operation of the business of the ownership or entity which
constitutes "Landlord," as distinguished from the costs of building operations,
including, but not limited to, partnership accounting and legal matters, costs
of defending any lawsuits with any mortgagee, costs of selling, syndicating,
financing, mortgaging or hypothecating any of Landlord's interest in the
Project, costs of any disputes between Landlord and its employees or with its
Project management;

                (n) advertising and promotional expenditures, and costs (except
for routine maintenance) of signs in or on the Project identifying the owner of
the Project or other tenants' signs, except for Project directories or Project
standard signage;

                (o) electric power costs or other utility costs for which any
tenant directly contracts with the local public service company (but Landlord
shall have the right to "gross up" as if the floor was vacant);

                (p) tax penalties incurred as a result of Landlord's negligence,
inability or unwillingness to make payments or file returns when due;

                (q) costs arising from Landlord's charitable or political
contributions;

                (r) costs of installing, maintaining and operating any specialty
service operated by landlord including without limitation, any luncheon club or
athletic facility, or the repair thereof;

                (s) costs necessitated by or resulting from the gross negligence
of Landlord, or any of its agents, employees or independent contractors;

                (t) any ground lease rental;

                (u) costs of capital acquisition of sculptures, paintings or
other objects of art;

                (v) costs incurred to comply with Regulations with respect to
hazardous material (as defined by applicable law) which was in existence in the
Building or on the Project prior to the Term Commencement Date, and was of such
a nature that a federal, state or municipal governmental or quasi-governmental
authority, if it had then had knowledge of the presence of such hazardous
material, in the state, and under the conditions that it then existed in the
Building or on the Project, would have then required the removal, remediation or
other action with respect to such hazardous material; and costs incurred with
respect to hazardous material, which hazardous material is brought into the
Building or onto the Project after the date hereof by Landlord or any other
tenant of the Project or by anyone other than Tenant or any Tenant Party and is
of such a nature, at that time, that a federal, state or municipal governmental
or quasi-governmental authority, if it had then had knowledge of the presence of
such hazardous material, in the state, and under the conditions, that it then
exists in the Building or on the Project, would have then required the removal,
remediation or other action with respect to such hazardous material;

                (w) management fees to the extent in excess of that specifically
includable in Operating Expenses;

                (x) costs of the initial development and construction of the
Project; and

                (y) costs of electricity and janitorial services provided to
tenant spaces.

        Notwithstanding anything contained in this Lease to the contrary, in no
event shall amounts paid by Tenant in any Expense Year pursuant to this
Paragraph 3.2 as reimbursement to Landlord for Landlord's payment of insurance
deductibles exceed $1.00 per rentable square foot of the Premises.

        (c) ADDITIONAL ADJUSTMENTS.

                (i) Variable items of Operating Expenses (e.g., expenses that
are affected by variations in occupancy levels) for each Expense Year during
which actual occupancy of the Project is less than one hundred percent (100%) of
the rentable area of the Project shall be appropriately adjusted, in accordance
with sound real estate accounting principles consistently applied, to reflect
one hundred percent (100%) occupancy of the existing rentable area of the
Project during such period. Operating Expenses for the Base Year shall include
market-wide labor-rate increases due to extraordinary circumstances, including,
but limited to, boycotts and strikes, and utility rate increases due to
extraordinary circumstances including, but not limited to, conservation
surcharges, boycotts, embargoes or other shortages, or amortized costs relating
to capital improvements; provided, however, that at such time as any such
particular assessments, charges, costs or fees are no longer included in
Operating Expenses, such particular assessments, charges, costs or fees shall be
excluded from the Base Year calculation of Operating Expenses. In no event shall
the components of Operating Expenses for any Expense Year related to electrical
costs be less than the components of Operating Expenses related to electrical
costs in the Base Year. If Landlord does not carry earthquake insurance for the
Project during the Base Year but subsequently obtains earthquake insurance for
the Project during the Term, then from and after the date upon which Landlord
obtains such earthquake insurance and continuing throughout the period during
which Landlord maintains such insurance, Operating Expenses for the Base Year
shall be deemed to be increased by the amount of the premium Landlord would have
incurred had Landlord maintained such insurance for the same period of time
during the Base Year as such insurance is maintained by Landlord during such
subsequent year.

                                      -5-
<PAGE>   7

                        (ii) For purposes of this Lease, Taxes shall be
calculated as if the tenant improvements in the Project were fully constructed
(at a Building standard amount) and the Project (including the land upon which
the Project is located), and all tenant improvements in the Project were fully
assessed for real estate tax purposes, and accordingly, during the portion of
any Expense Year or the Base Year, Tax Expenses shall be deemed to be increased
appropriately. Taxes which can be paid by Landlord in installments, shall be
paid by Landlord in the maximum number of installments permitted by law (except
to the extent inconsistent with the general practice of the Comparable
Buildings) and shall be included as Taxes in the year in which the assessment or
premium installment is actually paid. Subject to the remaining terms hereof, tax
refunds shall be credited against Taxes and refunded to Tenant, regardless of
when received, based on the year to which the refund is applicable.
Notwithstanding anything to the contrary set forth in this Lease, the amount of
Taxes for the Base Year and any Expense Year shall be calculated without taking
into account any decreases in real estate taxes obtained in connection with
Proposition 8, and, therefore, the Taxes in the Base Year and/or an Expense Year
may be greater than those actually incurred by Landlord, but shall, nonetheless,
be the Taxes due under this Lease; provided that (i) any reasonable costs and
expenses incurred by Landlord in securing any Proposition 8 reduction shall not
be deducted from Taxes nor included in Operating Expenses for purposes of this
Lease, and (ii) tax refunds under Proposition 8 shall not be deducted from Taxes
nor refunded to Tenant, but rather shall be the sole property of Landlord.
Landlord and Tenant acknowledge this Paragraph 3.2(c)(ii) is not intended to in
any way affect (A) the inclusion in Taxes of the statutory two percent (2.0%)
annual increase in Taxes (as such statutory increase may be modified by
subsequent legislation) or (B) the inclusion or exclusion of Taxes pursuant to
the terms of Proposition 13. Notwithstanding the foregoing, upon a reassessment
of the Building and/or Project pursuant to the terms of Proposition 13 (a
"REASSESSMENT") occurring after the Base Year which results in a decrease in
Taxes, the component of Taxes for the Base Year which is attributable to the
assessed value of the Building and/or Project under Proposition 13 prior to the
Reassessment (without taking into account any Proposition 8 reductions) shall be
reduced, if at all, for the purposes of comparison to all subsequent Expense
Years (commencing with the Expense Year in which the Reassessment takes place)
to an amount equal to the real estate taxes based upon such Reassessment.

                (d) Prior to or shortly following the commencement of (and from
time to time during) each calendar year of the Term following the Term
Commencement Date, Landlord shall give to Tenant a written estimate, on a
line-item by line-item basis, of the excess of (i) Tenant's Proportionate Share
of the projected Operating Expenses for the Project for such Expense Year over
(ii) Tenant's Proportionate Share of Operating Expenses for the Base Year (the
"EXCESS"). Commencing with the first day of the calendar month which is at least
thirty (30) days following the month in which such estimate was delivered to
Tenant, Tenant shall pay such estimated amount (less amounts, if any, previously
paid toward such year) to Landlord in equal monthly installments over the
remainder of such calendar year, in advance on the first day of each month
during such year (or remaining months, if less than all of the year remains).
Subject to the provisions of this Lease, Landlord shall furnish to Tenant within
a reasonable period after the end of each Expense Year, a statement (a
"RECONCILIATION STATEMENT") indicating in reasonable detail on a line-item by
line-item basis the Excess, and the parties shall, within thirty (30) days
thereafter, make any payment or allowance necessary to adjust Tenant's estimated
payments to the actual Excess as indicated by such annual Reconciliation
Statement (which obligation shall survive the expiration of the Term).

                (e) Tenant shall pay ten (10) days before delinquency all taxes
and assessments levied against any personal property or trade fixtures of Tenant
in or about the premises. If any such taxes or assessments are levied against
Landlord or Landlord's property or if the assessed value of the Project is
increased by the inclusion therein of a value placed upon such personal property
or trade fixtures, Tenant shall, within ten (10) days of demand, reimburse
Landlord for the taxes and assessments so levied against Landlord, or any such
taxes, levies and assessments resulting from such increase in assessed value.

                (f)  Any delay or failure of Landlord in (i) delivering any
estimate or statement described in this Paragraph 3.2, or (ii) computing or
billing Tenant's Proportionate Share of Operating Expenses shall not
(A) constitute a waiver of its right to subsequently deliver such estimate or
statement or require any increase in Rent contemplated by this Paragraph 3.2, or
(B) in any way waive or impair the continuing obligations of Tenant under this
Paragraph 3.2; provided, however, that notwithstanding anything to the
contrary contained in this Paragraph 3.2, Tenant shall not be responsible for
Tenant's Proportionate Share of Operating Expenses attributable to any year
which are first billed to Tenant more than two (2) calendar years after the
earlier of the expiration of the year to which the same are applicable or the
Lease expiration date, as the case may be, provided that in any event Tenant
shall be responsible for Tenant's Proportionate Share of Operating Expenses
levied by any governmental authority or by any public utility companies at any
time (provided that Landlord delivers Tenant a supplemental statement for such
amounts within two (2) years following Landlord's receipt of the bill therefor).
Provided that Tenant is not then in default under this Lease beyond any
applicable notice and cure period subject to compliance with Landlord's
reasonable rules and regulations for the same, Tenant shall have the right, upon
the condition that Tenant shall first pay to Landlord the amount in dispute, to
have independent certified public accountants of national standing (who are not
compensated on a contingency basis) of Tenant's selection (and subject to
Landlord's reasonable approval) review Landlord's Operating Expense books and
records relating to the Expense Year subject to a particular Reconciliation
Statement during the two (2) year period following delivery to Tenant of the
Reconciliation Statement for such Expense Year. If such review discloses an
error in Tenant's Proportionate Share of Operating Expenses payable by Tenant in
excess of five percent (5(degree)/a) of Operating Expenses, the cost of such
review shall be borne by Landlord; otherwise such cost shall be borne by Tenant.
Tenant waives the right to dispute or contest, and shall have no right to
dispute or contest, any matter relating to the calculation of Operating Expenses
or other forms of Rent under this Paragraph 3.2 with respect to each Expense
Year for which a Reconciliation Statement is given to Tenant if no claim or
dispute with respect thereto is asserted by Tenant in writing to Landlord within
two (2) years of delivery to Tenant of the original or most recent
Reconciliation Statement with respect thereto.

4. DELINQUENT PAYMENT; HANDLING CHARGES. In the event Tenant shall fail to pay
any amount of Rent or any other payment due under this Lease within five (5)
business days following notice from Landlord that the same was not paid when
due, then Tenant shall pay Landlord, within thirty (30) days of Landlord's
written demand therefor, a late charge equal to five percent (5%) of the
delinquent amount. In addition, any amount due from Tenant to Landlord hereunder
which is not paid within ten (10) days of the date due shall bear interest at an
annual rate (the "DEFAULT RATE") equal to twelve percent (12%).

5. LETTER OF CREDIT.

        5.1 DELIVERY of LETTER of CREDIT. In lieu of depositing a security
deposit with Landlord, Tenant shall, concurrently with Tenant's execution of
this Lease, deliver to Landlord and cause to be in effect during the Lease Term
an unconditional, irrevocable letter of credit ("LOC") in the amount specified
for the Security Deposit in the Basic Lease Information (the "LOC AMOUNT") for
an initial term of one (1) year and thereafter shall renew automatically from
year to year through 30 days beyond the expiration date of his Lease or any
extension thereto. The LOC shall be in a form reasonably acceptable to Landlord
and shall be issued by an LOC bank selected by Tenant and reasonably acceptable
to Landlord. An LOC bank is a bank that accepts deposits, maintains accounts,
has a local office that will negotiate a letter of credit, and the deposits of
which are insured by the Federal Deposit Insurance Corporation, provided that
Landlord hereby approves City National Bank. Tenant shall pay all expenses,
points, or fees incurred by Tenant in obtaining the LOC. The LOC shall not be
mortgaged, assigned or encumbered in any manner whatsoever by Tenant without the
prior written consent of Landlord. Tenant acknowledges that Landlord has the
right to transfer or mortgage its interest in the Project, the Building and in
this Lease and Tenant agrees that in the event of any such transfer or mortgage,
Landlord shall have the right to transfer or assign the LOC and/or the LOC
Security Deposit (as defined below) to the transferee or mortgagee, and in the
event of such transfer, Tenant shall look solely to such transferee or mortgagee
for the return of the LOC and/or the LOC Security Deposit. Tenant shall, within
ten (10) business days of request by Landlord, execute such further instruments
or assurances as Landlord may reasonably deem necessary to evidence or confirm
Landlord's transfer or assignment of the LOC Security Deposit and/or the LOC to
such transferee or mortgagee.

        5.2 REPLACEMENT OF LETTER OF CREDIT. Tenant may, from time to time,
replace any existing LOC with a new LOC if the new LOC (a) becomes effective
prior to the expiration of the LOC that it replaces; (b) is in the required LOC
amount; (c) is issued by an LOC bank acceptable to Landlord; and (d) otherwise
complies with the requirements of this Paragraph 5.

                                      -6-
<PAGE>   8

        5.3 LANDLORD'S RIGHT TO DRAW ON LETTER OF CREDIT. The LOC shall be held
by Landlord as security for the faithful performance by Tenant of all the terms,
covenants, and conditions of this Lease to be kept and performed by Tenant
during the Lease Term. The LOC shall not be mortgaged, assigned or encumbered in
any manner whatsoever by Tenant without the prior written consent of Landlord.
Landlord shall hold the LOC as security for the performance of Tenant's
obligations under this Lease. If, after notice and failure to cure within any
applicable period provided in this Lease, Tenant defaults on any provision of
this Lease, Landlord may, without prejudice to any other remedy it has, draw on
all or any portion of the LOC necessary to (a) pay Rent or other sum in default;
(b) pay or reimburse Landlord for any amount that Landlord may spend or become
obligated to spend in exercising Landlord's rights under Paragraph 17(d)(ii);
and/or (c) compensate Landlord for any expense, loss, or damage that Landlord
may suffer because of Tenant's default. The use, application or retention of the
LOC, or any portion there of, by Landlord shall not prevent Landlord from
exercising any other right or remedy provided by this Lease or by law, it being
intended that Landlord shall not first be required to proceed against the LOC
and shall not operate as a limitation on any recovery to which Landlord may
otherwise be entitled. If Tenant fails to renew or replace the LOC at least
thirty (30) days before its expiration, Landlord may, without prejudice to any
other remedy it has, draw on the entire amount of the LOC.

        5.4 LOC SECURITY DEPOSIT. Any amount of the LOC that is drawn on by
Landlord but not applied by Landlord shall be held by Landlord as a security
deposit (the "LOC SECURITY DEPOSIT").

        5.5 RESTORATION OF LETTER OF CREDIT AND LOC SECURITY DEPOSIT. If
Landlord draws on all or any portion of the LOC and/or applies all or any
portion of such draw, Tenant shall, within five (5) business days after demand
by Landlord, either (a) deposit cash with Landlord in an amount that, when added
to the amount remaining under the LOC and the amount of any LOC Security
Deposit, shall equal the LOC Amount then required under this Paragraph 5; or (b)
reinstate the LOC to the full LOC Amount, and Tenant's failure to do so shall be
a default under this Lease.

6. LANDLORD'S OBLIGATIONS.

        6.1 SERVICES.

                6.1.1 Subject to the provisions of this Lease, Landlord shall
furnish to Tenant during the Term (a) twenty-four (24) hour a day city or
utility company water at those points of supply provided for general use of the
tenants of the Building for normal office kitchen, lavatory, and drinking
purposes; (b) subject to Regulations, heating and air conditioning 6:00 a.m. to
7:00 p.m., Monday through Friday (not including legal holidays) ("BUSINESS
HOURS") for the Building at such temperatures and in such amounts as is
appropriate for normal comfort for normal office use in the Premises; (c)
twenty-four (24) hour a day nonexclusive passenger elevator service; and (d)
twenty-four (24) hour a day adequate electrical wiring, facilities and power
sufficient to provide the "Electrical Capacity," as that term is defined, below,
provided that in no event shall Tenant's electrical usage exceed the
Electrical Capacity. For purposes of this Lease, "Electrical Capacity" shall
mean six (6) watts connected load per usable square foot. If Tenant desires any
of the services specified in this Paragraph 6.1 at any time other than during
the times set forth herein, then subject to such nondiscriminatory conditions
and standards as Landlord shall apply to the same, upon the written request of
Tenant, such services shall be supplied to Tenant in accordance with Landlord's
customary procedures for the Building, including such advance request deadlines
as Landlord shall reasonably require from time to time, and Tenant shall pay to
Landlord Landlord's then reasonable and customary charge for such services
within thirty (30) days after Landlord has delivered to Tenant an invoice
therefor, provided that the hourly charge for any after hours HVAC utilized by
Tenant shall equal the product of (i) the number of the Building's HVAC package
units required to supply the Premises (or the applicable portion thereon with
HVAC, and (ii) $5.00 (the "After Hours HVAC Charge"). Notwithstanding the
foregoing, the After Hours HVAC Charge shall be subject to increase by Landlord,
but only to the extent of any actual increases in Landlord's cost of providing
such service following the date of this Lease. Landlord and Tenant hereby
acknowledge and agree that (A) the prior tenant of the Premises installed a unit
independent of the Building HVAC to provide HVAC to a portion of the Premises
(the "Premises HVAC Unit"), (B) Tenant shall not be responsible for the After
Hours HVAC Charge in connection with Tenant's use of the Premises HVAC Unit (but
Tenant shall be responsible for electricity consumed by such Premises HVAC Unit
in accordance with the terms of Paragraph 6.2 of this Lease), and (C) Tenant
shall be responsible, at Tenant's sole cost and expense, for the repair,
maintenance, and replacement, as necessary, of the Premises HVAC Unit. Landlord
reserves the right to change the supplier or provider of any such service from
time to time. Tenant shall not have the right to obtain any such service for the
Premises directly from a supplier or provider of such service except as provided
herein and in Paragraph 6.4 below.

                6.1.2 JANITORIAL SERVICES. Landlord shall not provide janitorial
services for the Premises. Tenant shall be solely responsible for performing all
janitorial services and other cleaning of the Premises appropriate to maintain
the Premises in a manner consistent with space located at the "Comparable
Buildings," as that term is defined in Paragraph 22.5, below, including, without
limitation, the following.

                        6.1.2.1 Tenant shall cause the carpets or other floor
coverings in the Premises to be professionally cleaned at least once every three
(3) months during the Term.

                        6.1.2.2 Tenant shall cause to be provided (i) monthly
interior window washing, and (ii) five days per week (excluding Holidays)
sweeping and cleaning of the Premises.

                        6.1.2.3 Tenant shall deposit trash five days per week
(excluding Holidays), in the area designated by Landlord from time to time,
which trash shall be sealed in double plastic bags. All trash containers must be
covered and stored in a manner to prevent the emanation of odors into the
Premises or the Building.

                        6.1.2.4 Tenant shall cause to be provided pest
eradication and control services, as required by Landlord in its reasonable
discretion, with respect to the Premises.

                        6.1.2.5 Tenant shall take all actions necessary to
prevent odors from escaping into the Premises, the Building or the Project.

If requested by Landlord, Tenant shall promptly present a cleaning and
maintenance schedule to Landlord for approval, which shall not be unreasonably
withheld, and shall clean and maintain the Premises in accordance with such
schedule. Landlord shall have the right to inspect the services provided
hereunder by Tenant in accordance with the terms of this Lease and to require
Tenant to provide additional cleaning, if necessary. In the event Tenant shall
fail to provide any of the services described in this Paragraph 6.1.2 within
five (5) business days after notice from Landlord, which notice shall not be
required in the event of an emergency, Landlord shall have the right to provide
such services and any charge or cost incurred by Landlord in connection
therewith shall be deemed Additional Rent due and payable by Tenant within
thirty (30) days following receipt by Tenant of a written statement of cost from
Landlord. Failure of Tenant to comply with any one or more of the foregoing
provisions shall be deemed to be a default under this Lease, subject to any
applicable notice and cure period set forth in this Lease.

        6.2 ELECTRICAL USE/PAYMENT BY TENANT. Tenant shall not install or use,
without Landlord's prior written consent, which shall not be unreasonably
withheld, any equipment that requires more than 110 volts. In addition, Tenant
shall not install or use any equipment whose operation is in excess of, or
inconsistent with the capacity of the existing feeders and risers to, or wiring
in, the Premises. Within ten (10) days following demand by Landlord, Tenant
shall pay to Landlord the cost of electricity utilized at the Premises, as
reasonably determined by Landlord based upon an equitable pro-ration of the
electricity consumed in the Building by each of the tenants occupying the same.

                                      -7-
<PAGE>   9

        6.3 RESTORATION OF SERVICES. Following receipt of Tenant's request to do
so, Landlord shall use good faith efforts to restore any service specifically to
be provided under Paragraph 6.1 that becomes unavailable and which is in
Landlord's reasonable control to restore; provided, however, that in no case
shall the unavailability of such services or any other service (or any
diminution in the quality or quantity thereof) or any interference in Tenant's
business operations within the Premises render Landlord liable to Tenant or any
person using or occupying the Premises under or through Tenant (including,
without limitation, any contractor, employee, agent, invitee or visitor of
Tenant) (each, a "TENANT PARTY") for any damages of any nature whatsoever caused
thereby, constitute a constructive eviction of Tenant, constitute a breach of
any implied warranty by Landlord, or entitle Tenant to any abatement of Tenant's
rental obligations hereunder (except as specifically set forth in Paragraph
16.2.2 of this Lease).

        6.4 ACCESS CONTROL. Landlord shall provide reasonable access control
services for the Building and in the Building parking facility seven (7) days
per week, twenty-four (24) hours per day, in a manner consistent with buildings
comparable to and in the vicinity of the Building. Notwithstanding the
foregoing, Landlord shall in no case be liable for personal injury or property
damage for any error with regard to the admission to or exclusion from the
Building or Project of any person. Tenant may, at its own expense, install its
own security system ("TENANT'S SECURITY SYSTEM") in the Premises subject to and
in accordance with the terms of Paragraph 7 of this Lease; provided, however,
that Tenant shall coordinate the installation and operation of Tenant's Security
System with Landlord to assure that Tenant's Security is compatible with
Landlord's security system and the Building systems and equipment and to the
extent that Tenant's Security System is not compatible with Landlord's security
system and the Building systems and equipment, Tenant shall not be entitled to
install or operate it. Tenant shall be solely responsible, at Tenant's sole cost
and expense, for the monitoring, operation and removal of Tenant's Security
System. Notwithstanding anything to the contrary contained herein, but subject
to the terms of this Lease, upon the expiration of the term of this Lease, or
upon any earlier termination of this Lease, Tenant may, at its expense, remove
or cause to be removed from the Premises Tenant's Security System (if installed
by Tenant), provided that Tenant shall repair all damage resulting from such
removal.

        6.5 SIGNAGE.

                6.5.1 TENANT'S SIGNS. Subject to the terms of this Paragraph
6.5.1 and applicable law, Tenant shall be entitled, at its sole cost and
expense, to install (i) one (1) nonexclusive sign at the top of the Building
(the "BUILDING TOP SIGN"); (ii) subject to the remaining terms hereof, one (1)
nonexclusive sign on a multi-tenant monument (the "MONUMENT"), if Landlord, at
Landlord's option, shall construct such monument to service the Project (the
"MONUMENT SIGN"), and (iii) one (1) sign identifying Tenant above the entrance
to the Premises (collectively, "TENANT'S SIGNS"). All of Tenant's Signs shall at
all times remain the property of Tenant, and Tenant shall remove its signs at
the expiration or earlier termination of this Lease or upon the earlier
termination of Tenant's right to Tenant's Sign as set forth herein. Tenant shall
repair any damage caused in the removal of any sign. Notwithstanding anything
contained herein to the contrary, Tenant hereby acknowledges and agrees that
Landlord shall have no obligation whatsoever to construct the Monument, and that
Tenant's rights to Tenant's Sign on the Monument, as set forth in item (ii),
above, shall be applicable only in the event that Landlord shall elect, in its
sole discretion, to construct the Monument.

                        6.5.1.1 SPECIFICATIONS; OTHER TERMS. The graphics,
materials, color, design, lettering, lighting, size and other specifications
(collectively, the "SPECIFICATIONS") of Tenant's Signs shall be subject to the
prior written approval of Landlord, which approval shall not be unreasonably
withheld, conditioned or delayed, and shall be consistent and compatible with
the quality and nature of the Building and Project, provided that Landlord and
Tenant hereby acknowledge and agree that (i) Landlord shall designate the exact
location of Tenant's Signs, (ii) Landlord hereby approves the logo used by
Tenant as of the date of this Lease, and (iii) Tenant's Sign on the Monument, if
applicable, shall be no smaller than any other tenant's sign thereon.
Furthermore, Tenant's Signage shall comply with all applicable governmental
rules and regulations and shall comply with Landlord's Project standards.
Landlord shall be responsible for the cost of the Monument, if applicable,
provided that Tenant shall be responsible for all costs incurred in connection
with the design, construction, installation, repair and maintenance, compliance
with laws and removal of Tenant's Signs (including without limitation, Tenant's
Sign on the Monument, if applicable), as well as the cost of any utilities
consumed by Tenant's Signs. Upon the expiration or earlier termination of this
Lease, Tenant shall, at its sole cost and expense, remove Tenant's Signs
(including Tenant's sign on the Monument but not the Monument itself) and repair
any and all damage to the Building and the Project caused by such removal.

                        6.5.1.2 BUILDING TOP SIGN RENT. In the event that Tenant
shall elect pursuant to the terms hereof to install the Building Top Sign,
Tenant shall pay to Landlord, in the same manner and pursuant to the same timing
as Base Rent, as additional rent, for each month of the Term during which the
Building Top Sign is on the Building, an amount equal to the "Building Top Sign
Rent," as that term is defined, below, applicable from time to time. For
purposes of this Lease, the "Building Top Sign Rent" shall equal $5,000.00 per
month during each month of the first year of the Term, and, during each year of
the Term thereafter, an amount equal to the product of (i) the Building Top Sign
Rent applicable during the prior year, and (ii) 1.04.

                        6.5.1.3 PERSONAL NATURE OF RIGHTS. Tenant's right to the
Building Top Sign and the Monument Sign, as applicable, shall (i) be personal to
the Original Tenant and may not be utilized by or transferred to any assignee,
sublessee or other transferee of the Original Tenant's interest in this Lease or
the Premises, and (ii) be contingent upon the Original Tenant actually occupying
seventy-five percent (75%) of the Premises.

                6.5.2 INTERIOR PREMISES SIGNAGE. Subject to Landlord's prior
written approval, in its reasonable discretion, and provided all signs are in
keeping with the quality, design and style of the Building and Project, Tenant,
at its sole cost and expense, may install identification signage anywhere in the
Premises, provided that such signs must not be visible from the exterior of the
Building.

        6.6 TENANT HVAC SYSTEM. Subject to the terms of Paragraph 7 of this
Lease, Tenant, at its sole expense may install supplemental HVAC systems in the
Premises (the "TENANT HVAC SYSTEM"), provided that the same does not interfere
with the Building's electrical, HVAC or other systems. In connection with the
Tenant HVAC System, Tenant may, at its sole cost and expense, connect into the
Building's water system to the extent available (as reasonably determined by
Landlord), if and to the extent that (i) Tenant's use of water pursuant to this
Paragraph 6.6 will not materially adversely affect the water system or the use
thereof by other tenants of the Building, and (ii) such connection is otherwise
approved by Landlord, which approval shall not be unreasonably withheld,
conditioned or delayed unless a "Design Problem," as that term is defined,
below, exists. If Tenant connects into the Building's water system pursuant to
the terms of the foregoing sentence, (x) Tenant shall install, at Tenant's
expense, a meter to measure Tenant's use of water, and (y) Tenant shall
reimburse Landlord for Tenant's use of water. Tenant shall be responsible for
the cost of all electricity utilized by the Tenant HVAC System. At Landlord's
sole option, which option shall be exercised (if at all) at the time Landlord
grants its consent to Tenant's installation of the Tenant HVAC System, Tenant
shall remove the Tenant HVAC System, and repair any damages to the Building
caused by such removal, or leave same in the Premises, in which event the same
shall become a part of the realty and belong to Landlord and shall be
surrendered with the Premises upon the expiration or earlier termination of this
Lease. For purposes of this Lease, a "Design Problem" is defined as, and will be
deemed to exist if the applicable work or improvement will 0) affect the
exterior appearance of the Building; (ii) adversely or materially affect the
Building structure; (iii) adversely or materially affect the Building systems;
(iv) unreasonably and materially interfere with any other Project occupant's
normal and customary office operation or (v) fail to comply with Regulations.

7. IMPROVEMENTS, ALTERATIONS, REPAIRS AND MAINTENANCE.

        7.1 IMPROVEMENTS; ALTERATIONS.

                7.1.1 IN GENERAL. Any alterations, additions, deletions,
modifications or utility installations in, of or to the improvements contained
within the Premises (collectively, "ALTERATIONS") shall be installed at Tenant's
expense and only in accordance with detailed plans and

                                      -8-
<PAGE>   10

specifications, construction methods, and, to the extent applicable, all
appropriate permits and licenses, all of which have been previously submitted to
and approved in writing by Landlord, and by a professionally qualified and
licensed contractor and subcontractors reasonably approved by Landlord. No
Alterations in or to the Premises may be made without (a) Landlord's prior
written consent, which shall not be unreasonably withheld, and (b) compliance
with such reasonable, nondiscriminatory requirements and construction
regulations concerning such Alterations as Landlord may impose from time to
time. Landlord shall not unreasonably withhold its consent with respect to
proposed Alterations (and shall grant or deny such consent within twenty (20)
business days following Landlord's receipt of Tenant's request therefor
[together with all relevant information required by Landlord with respect to
such Alterations], stating detailed reasons for denial, if applicable). Landlord
will not be deemed to unreasonably withhold its consent to any Alteration that
violates Regulations, may materially, adversely affect or be incompatible with
the Building's structure or its HVAC, plumbing, telecommunications, elevator,
life-safety, electrical, mechanical or other basic systems, or the appearance of
the interior common areas or exterior of the Project, or which may unreasonably
interfere with the use or occupancy of any other portion of the Project. All
Alterations made in or upon the Premises shall, (i) at Landlord's option, either
be removed by Tenant prior to the end of the Term (and Tenant shall restore the
portion of the Premises affected to its condition existing immediately prior to
such Alteration), or shall remain on the Premises at the end of the Term
(provided that in the event that Tenant's request for approval of any
Alterations shall request a designation pursuant to this item (i), Landlord
shall indicate in its approval (if applicable) of the applicable Alteration
whether or not the same shall be required to be removed prior to the expiation
of the Term in accordance with the terms hereof), and (ii) be constructed,
maintained, insured and used by Tenant, at its risk and expense, in a good and
workmanlike manner, and in accordance with all Regulations. Tenant shall
reimburse Landlord for all actual, out-of-pocket costs which Landlord may incur
in connection with granting approval to Tenant for any such Alterations,
including any costs or expenses which Landlord may incur in electing to have
outside architects and engineers review said plans and specifications, and shall
pay Landlord an administration fee of seven and one half percent (7.5%) of the
cost of the Alterations as additional rent hereunder (provided that such
administration fee shall be reduced to 5% in connection with any cosmetic
Alterations which do not require Landlord's consent pursuant to Paragraph 7.1.2,
below). If any Alteration made or initiated by Tenant or the removal thereof
shall cause, trigger or result in any portion of the Project outside of the
Premises, any portion of the Building's shell and core improvements (including
restrooms, if any) within the Premises, or any Building system inside or outside
of the Premises being required by any governmental authority to be altered,
improved or removed, or may otherwise potentially affect such portions of the
Project or any other tenants of the Project, Landlord shall have the option (but
not the obligation) of performing the same at Tenant's expense, in which case
Tenant shall pay to Landlord (within thirty (30) days of Landlord's written
demand) in advance Landlord's reasonable estimate of the cost of such work, and
any actual costs of such work in excess of Landlord's estimate, plus an
administrative charge of ten percent (10%) thereof. At least ten (10) days
before beginning construction of any Alteration, Tenant shall give Landlord
written notice of the expected commencement date of that construction to permit
Landlord to post and record a notice of non-responsibility. Upon substantial
completion of construction, if the law so provides, Tenant shall cause a timely
notice of completion to be recorded in the office of the recorder of the county
in which the Building is located. In the event Tenant fails to so record the
notice of completion as required pursuant to this Paragraph 7.1, then such
failure shall not, in and of itself, constitute a default hereunder but Tenant
shall indemnify, defend, protect and hold harmless Landlord and the Landlord
Parties from any and all loss, cost, damage, expense and liability (including,
without limitation, court costs and reasonable attorneys' fees) in connection
with such failure by Tenant to so record the Notice of Completion as required
hereunder. Tenant shall have the right to use non-union contractors to perform
all or a portion of the Alterations, but only to the extent (A) Tenant provides
Landlord with prior written notice of its request to hire a non-union
contractor, and (B) hiring non-union contractors does not violate any contracts
to which Landlord is a party;. provided, however, if Tenant chooses to use
nonunion labor and, in Landlord's reasonable opinion, labor harmony with the
workforce or trades engaged in performing the work, labor or services in or
about the Project is disturbed, then, following written notice received by
Tenant from Landlord, Tenant shall (I) immediately cease using all nonunion
labor, and (II) hire only union labor.

                7.1.2 COSMETIC ALTERATIONS. Notwithstanding anything in
Paragraph 7.1.1 to the contrary, Tenant may make any cosmetic Alterations which
do not affect the Building systems and equipment, exterior appearance of the
Building, or structural aspects of the Building, by providing Landlord with
notice not less than ten (10) business days prior to the commencement thereof.
Landlord's consent shall not be required with respect to any such Alterations,
provided the cost of said Alterations do not exceed $100,000.00 in any twelve
(12) month period.

        7.2 REPAIRS AND MAINTENANCE. Landlord shall maintain in such condition
and operating order (and shall keep in such repair and condition), in a manner
substantially consistent with the maintenance and operational standards employed
by landlords of Comparable Buildings, the structural portions of the Building,
including the foundation, floor/ceiling slabs, roof, curtain wall, exterior
glass and mullions, columns, beams, shafts (including elevator shafts), stairs,
parking areas, stairwells, escalators, elevator cabs, plazas, pavement,
sidewalks, curbs, entrances, landscaping, art work, sculptures, public men's and
women's washrooms, Building mechanical, electrical and telephone closets, and
all common and public areas (collectively, "BUILDING STRUCTURE") and the base
building mechanical, electrical, life safety, plumbing, sprinkler systems and
HVAC systems and other base building systems and equipment which were not
constructed by Tenant and are not located within the Premises (collectively, the
"BUILDING SYSTEMS") and otherwise operate the Project in a manner and condition
materially comparable with the standards of operation as are generally customary
for Comparable Buildings. Notwithstanding anything in this Lease to the
contrary, Tenant shall be required to repair the Building Structure and/or the
Building Systems to the extent required because of (i) Tenant's use of the
Premises for other than normal and customary business office operations, or (ii)
the negligence or willful misconduct of Tenant or the Tenant Parties, unless and
to the extent such damage is covered by insurance carried or required to be
carried by Landlord pursuant to this Lease and to which the waiver of
subrogation is applicable (such obligation to the extent applicable to Tenant as
qualified and conditioned will hereinafter be defined as the "BS/BS EXCEPTION").
Except as provided as part of Landlord's obligations set forth above or
elsewhere in this Lease, Tenant shall, at Tenant's own expense, pursuant to the
terms of this Lease, including without limitation Paragraph 7 hereof, keep the
Premises, including all improvements (including all existing improvement and all
Alterations) and fixtures, in good order and repair condition at all times
during the Lease Term (but such obligation shall not extend to the Building
Structure and the Building Systems except pursuant to the BS/BS exception). In
addition, except as provided as part of Landlord's repair obligations set forth
above or elsewhere in this Lease, Tenant shall, at Tenant's own expense but
under the supervision and subject to the prior approval of Landlord, and within
any reasonable period of time specified by Landlord, pursuant to the terms of
this Lease, including without limitation Paragraph 7 hereof, promptly. and
adequately repair all damage to the Premises and replace or repair all damaged
or broken fixtures and appurtenances (but such obligation shall not extend to
the Building Structure and the Building Systems except pursuant to the BS/BS
exception); provided however, that, at Landlord's option, but only if Tenant
fails to make such repairs and replacements within thirty (30) days after notice
thereof from Landlord (or such sooner period of time in the case of an emergency
or to otherwise to protect life and property), Landlord may, but need not, make
such repairs and replacements and Tenant shall pay Landlord the cost thereof,
sufficient to reimburse Landlord for all costs arising from Landlord's
involvement with such repairs and replacements to the extent not duplicative of
Operating Expenses and to the extent the work is not performed by people whose
salaries are paid out of Operating Expenses forthwith upon being billed for
same. Landlord may, but shall not be required to, enter the Premises at all
reasonable times to make such repairs, alterations, improvements and additions
to the Premises or to the Project or to any equipment located in the Project as
Landlord shall desire or deem necessary or as Landlord may be required to do by
applicable Regulations; provided, however, except for emergencies, any such
entry into the Premises by Landlord shall be performed in a manner so as not to
materially or adversely interfere with Tenant's use of, or ingress or egress to,
the Premises. Tenant shall, at Tenant's own expense, pursuant to the provisions
of this Lease, including without limitation Paragraph 7 hereof, keep the
Premises, including all improvements, fixtures and existing improvements,
Alterations, fixtures, and the floor or the floors of me Building on which the
Premises are located, in good order, repair and condition at all times during
the Term (but such obligation shall not extend to the Building Structure and the
Building Systems except pursuant to the BS/BS Exception). Tenant hereby waives
any and all rights under the benefits of Section l of Section 1932 and Sections
1941 and 1942 of the California Civil Code or under any similar law, statute, or
ordinance now or hereafter in effect.

        7.3 MECHANIC'S LIENS. Tenant shall not cause, suffer or permit any
mechanic's or materialman's lien, claim, or stop notice to be filed or asserted
against the Premises, the Building or any funds of Landlord for any work
performed, materials furnished, or obligation incurred by or at the request of
Tenant or any Tenant Party. If any such lien, claim or notice is filed or
asserted, then Tenant shall, within ten (10) business days after Landlord has
delivered notice of the same to Tenant, either (a) pay and satisfy in full the
amount of (and eliminate of record) the lien, claim or notice

                                      -9-
<PAGE>   11

or (b) diligently contest the same and deliver to Landlord a bond or other
security therefor in substance and amount (and issued by an issuer) satisfactory
to Landlord.

8. USE.

        8.1 IN GENERAL. Tenant shall use the Premises only for the uses set
forth in the Basic Lease Information, consistent with the standards of the
Comparable Buildings (the "PERMITTED USE"). Tenant shall conduct its business
and shall cause each Tenant Party to actin such a manner as to (a) not release
or permit the release of any Hazardous Material in, under, on or about the
Project in violation of any Regulations, (b) use or store any Hazardous
Materials (other than incidental amounts of cleaning and office supplies) in or
about the Premises or (c) not create or permit any nuisance or unreasonable
interference with or disturbance of other tenants of the Project or Landlord in
its management of the Project or (d) not create any occupancy density in the
Premises or parking density with respect to Tenant and any Tenant Party at the
Project greater than those specified in the Basic Lease Information. "HAZARDOUS
MATERIAL" means any hazardous, explosive, radioactive or toxic substance,
material or waste which is or becomes regulated by any local, state or federal
governmental authority or agency, including, without limitation, any material or
substance which is (i) defined or listed as a "hazardous waste," "extremely
hazardous waste," "restricted hazardous waste," "hazardous substance,"
"hazardous material," "pollutant" or "contaminant" under any Regulation, (ii) a
flammable explosive, (iii) a radioactive material, (iv) a polychlorinated
biphenyl, (v) asbestos or asbestos containing material, or (vi) a carcinogen.

        8.2 COMPLIANCE WITH LAWS. Tenant shall not do anything or suffer
anything to be done in or about the Premises or the Project which will in any
way conflict with any Regulation. At its sole cost and expense, Tenant shall,
except as otherwise expressly provided in this Lease, promptly comply with all
such Regulations to the extent that such Regulations relate to (i) Tenant's use
of the Premises, (ii) the existing improvements located in the Premises or any
Alterations thereof, and (iii) the Building Structure and the Building Systems
(collectively, the "BASE BUILDING"), but as to the Base Building, only to the
extent such obligations are triggered by non-general office Alterations made by
Tenant to the Premises, any existing non-general office tenant improvements, or
Tenant's use of the Premises for a non-general office use. Subject to the
foregoing, Tenant shall be responsible, at its sole cost and expense, to make
all alterations to the Premises as are required to comply with the governmental
rules, regulations, requirements or standards described in this Paragraph 8.2.
The judgment of any court of competent jurisdiction or the admission of either
party hereto in any judicial action, regardless of whether the other party is a
party thereto, that such party has violated any of said governmental measures,
shall be conclusive of that fact as between Landlord and Tenant. Landlord shall
comply with all Regulations relating to the Base Building, provided that
compliance with such Regulations is not the responsibility of Tenant under this
Lease, and provided further that Landlord's failure to comply therewith would
prohibit Tenant from obtaining or maintaining a certificate of occupancy for the
Premises, or would unreasonably and materially affect the safety of Tenant or
create a significant health hazard for Tenant or otherwise materially interfere
with or materially affect Tenant's permitted use and enjoyment of the Premises.
Landlord shall be permitted to include in Operating Expenses any costs or
expenses incurred by Landlord under this Paragraph 8.2 to the extent consistent
with, and amortized to the extent required by, the provisions of Paragraph 3 of
this Lease.

9. ASSIGNMENT AND SUBLETTING.

        9.1 TRANSFERS: Consent. Tenant shall not, without the prior written
consent of Landlord (which shall not be unreasonably withheld and which shall be
granted or denied within twenty (20) days following Tenant's request therefor in
accordance with the terms of this Paragraph 9.1), (a) assign, transfer,
mortgage, hypothecate, or encumber this Lease or any estate or interest herein,
whether directly, indirectly or by operation of law, (b) sublet any portion of
the Premises, or (c) grant any license, concession, or other right of occupancy
of or with respect to any portion of the Premises, or (d) permit the use of the
Premises by any party other than Tenant or a Tenant Party (each of the events
listed in this Paragraph 9.1 being referred to herein as a "TRANSFER"). If
Tenant requests Landlord's consent to any Transfer, then at least twenty (20)
days prior to the effective date of the proposed Transfer, Tenant shall provide
Landlord with a written description of all terms and conditions of the proposed
Transfer and all consideration therefor (including a calculation of the Transfer
Profits described below), copies of the proposed documentation, and the
following information relating to the proposed transferee: name and address;
information reasonably satisfactory to Landlord concerning the proposed
transferee's business and business history; its proposed use of the Premises;
banking, financial, and other credit information; and general references
sufficient to enable Landlord to determine the proposed transferee's
creditworthiness and character. Landlord s hall not unreasonably withhold its
consent to any assignment or subletting of the Premises, provided that the
parties agree that it shall be reasonable for Landlord to withhold any such
consent if, without limitation, (A) the proposed assignee does not agree to be
bound by and assume the obligations of Tenant under this Lease in a commercially
reasonable form and substance reasonably satisfactory to Landlord; (B) the use
of the Premises by such proposed assignee or subtenant would not be a permitted
use under this Lease or would violate any exclusivity or other arrangement which
Landlord has with any other tenant or occupant or any Regulation or would
violate the Occupancy Density set forth in this Lease; (C) the proposed assignee
or subtenant is not of sound financial condition in light of its obligations
under any such sublease or assignment; (D) the proposed assignee or subtenant is
a governmental agency with the power of condemnation or high foot traffic or
otherwise of a character which is not consistent (in Landlord's reasonable
opinion) with the professional image of the Building or the character of the
other tenant's therein; (E) the proposed assignee or subtenant does not have a
good reputation as a tenant of property or a good business reputation (as
determined by Landlord in its reasonable discretion); (F) the proposed assignee
or subtenant is a person with whom Landlord is actively negotiating to lease
space in the Project (which for purposes of this Lease, shall mean a written
lease proposal or proposals setting forth the material business terms of a
proposed lease have been exchanged within the immediately proceeding three (3)
month period between Landlord and the proposed transferee) or is a present
tenant of the Project (provided that Landlord has space in the Project
reasonably capable of satisfying the proposed transferee's requirements); (G)
the assignment or subletting would entail any use of any Hazardous Materials or
other noxious use or use which may disturb other tenants of the Project; or (H)
Tenant is in default of any obligation of Tenant under this Lease, beyond
applicable notice and cure periods. Any Transfer made without Landlord's consent
shall be void and, at landlord election, shall constitute an default by Tenant,
subject to any applicable notice and cure period. Tenant shall also, within ten
(10) days of written demand therefor, pay to Landlord its reasonable
out-of-pocket costs and reasonable attorneys' fees and all other out-of-pocket
costs Incurred in connection with considering any request for consent to a
proposed Transfer, provided that such cost and expenses shall not exceed Two
Thousand Five Hundred Dollars ($2,500.00) for a Transfer. If Landlord consents
to a proposed Transfer, then the proposed transferee shall deliver to Landlord
Landlord's standard form transfer consent and agreement (which shall be subject
to commercially reasonable modifications) whereby the proposed transferee
expressly assumes the Tenant's obligations hereunder. Landlord's consent to a
Transfer shall not release Tenant from its obligations under this Lease (or any
guarantor of this Lease of its obligations with respect thereto), but rather
Tenant and its transferee shall be jointly and orally liable for all obligations
under this Lease allocable to the space subject to such Transfer. Landlord's
consent to any Transfer shall not waive Landlord's rights as to any subsequent
Transfers. In the event of any claim by Tenant that Landlord has breached its
obligations under this Paragraph 9.1, Tenant's remedies shall be limited to
recovery of its out-of-pocket damages and injunctive relief.

        9.2 BONUS RENT. Any Rent or other consideration realized by Tenant under
any such sublease or assignment in excess of the Rent payable hereunder, after
deducting any "Subleasing Costs," as that term is defined below, incurred by
Tenant in connection with the applicable Transfer (which Subleasing Costs shall
be amortized over the term of the applicable Transfer), shall be divided and
paid, fifty percent (50%) to Tenant, fifty percent (50%) to Landlord.
"Subleasing Costs" shall mean reasonable, out-of-pocket expenses for (i) any
changes, alterations and improvements to the Premises in connection with the
transfer, (ii) any brokerage commissions in connection with the transfer, (iii)
any costs to buyout or takeover the previous lease of a transferee, (iv)
reasonable legal fees incurred in connection with the transfer including those
fees and costs reimbursed to Landlord pursuant to this Lease, and (v) any other
"out-of-pocket" monetary concessions reasonably provided in connection with the
transfer including, but not limited to, tenant improvement or decorating
allowances (collectively, the "SUBLEASING COSTS"). In any assignment or
subletting undertaken by Tenant, Tenant shall diligently seek to obtain the
maximum rental amount available in the marketplace for comparable space
available for a comparable term.

                                      -10-
<PAGE>   12
        9.3 NON-TRANSFERS. Notwithstanding anything to the contrary contained in
this Paragraph, neither (i) an assignment or subletting of all or a portion of
the Premises (A) to an entity which is controlled by, controls or is under
common control with Tenant (or a valid assignee of this Lease), or (B) to a
purchaser of all or substantially all of the assets of Tenant or of an entity
which is controlled by, controls or is under common control with Tenant (or a
valid assignee of this Lease), nor (ii) a transfer, by operation of law or
otherwise, in connection with the merger, consolidation or other reorganization
of Tenant or of an entity which is controlled by, controls or is under common
control with Tenant (or a valid assignee of this Lease), shall be subject to the
Landlord's consent or Tenant's payment of Bonus Rent (collectively, such
entities, purchasers, and parties shall be referred to herein collectively or
individually as an "AFFILIATE"), provided that at least five (5) business days
prior to such assignment or sublease (a) Tenant notifies Landlord of any such
assignment or sublease and promptly supplies Landlord with any documents or
information reasonably requested by Landlord regarding such assignment or
sublease or such Affiliate; and (b) such assignment or sublease is not a
subterfuge by Tenant to avoid its obligations under this Lease. No such
assignment, sublease or other transfer under this Paragraph 9.3 shall relieve
Tenant from any liability under this Lease. For purposes of this Lease,
"control" shall mean the possession, direct or indirect, of the power to direct
or cause the direction of the management and policies of a person or entity, or
majority ownership of any sort, whether through the ownership of voting
securities, by contractor otherwise.

        9.4 LANDLORD'S OPTION AS TO SUBJECT SPACE. Notwithstanding anything to
the contrary contained in this Paragraph 9, in the event Tenant contemplates a
Transfer of all or a portion of the Premises (other than to an Affiliate),
Tenant shall give Landlord notice (the "INTENTION TO TRANSFER NOTICE") of such
contemplated Transfer (whether or not the contemplated transferee or the terms
of such contemplated Transfer have been determined). The Intention to Transfer
Notice shall specify the portion of and amount of rentable square feet of the
Premises which Tenant intends to Transfer (the "CONTEMPLATED TRANSFER SPACE"),
the contemplated date of commencement of the contemplated Transfer (the
"CONTEMPLATED EFFECTIVE DATE"), the contemplated length of the term of such
contemplated Transfer, and shall specify that such Intention to Transfer Notice
is delivered to Landlord pursuant to this Paragraph 9.4 in order to allow
Landlord to elect to recapture the Contemplated Transfer Space for the term set
forth in the Intention to Transfer Notice. Thereafter, Landlord shall have the
option, by giving written notice to Tenant within twenty (20) days after receipt
of any Intention to Transfer Notice, to recapture the Contemplated Transfer
Space as of the Contemplated Effective Date until the last day of the term of
the Contemplated Transfer as set forth in the Intention to Transfer Notice (the
"RECAPTURE TERM"), and during the Recapture Term, Tenant shall be relieved of
its obligations under the terms of this Lease. In the event of a recapture by
Landlord, if this Lease shall be canceled with respect to less than the entire
Premises, the rent reserved herein shall be prorated on the basis of the number
of rentable square feet retained by Tenant in proportion to the number of
rentable square feet contained in the Premises, and this Lease as so amended
shall continue thereafter in full force and effect, and upon request of either
party, the parties shall execute written confirmation of the same. If Landlord
declines, or fails to elect in a timely manner, to recapture such Contemplated
Transfer Space under this Paragraph 9.4, then, subject to the terms of Paragraph
9, for a period of nine (9) months (the "NINE MONTH PERIOD") commencing on the
last date of such twenty (20) day period, Landlord shall not have any right to
recapture the Contemplated Transfer Space with respect to any Transfer made
during the Nine Month Period, provided that any such Transfer is substantially
on the terms set forth in the Intention to Transfer Notice, and provided further
that any such Transfer shall be subject to the remaining terms of this Paragraph
9. If Landlord elects to recapture as provided herein for less than all of the
Premises or less than the entire Lease Term, Landlord shall return such space to
Tenant at the end of the Recapture Term in the same condition when received if
Tenant will be using the Contemplated Transfer Space in its then existing or
substantially similar condition. If such a Transfer is not so consummated within
the Nine Month Period (or if a Transfer is so consummated, then upon the
expiration of the term of any Transfer of such Contemplated Transfer Space
consummated within such Nine Month Period), Tenant shall again be required to
submit a new Intention to Transfer Notice to Landlord with respect to any
contemplated Transfer, as provided in this Paragraph 9.4.

10. INSURANCE, WAIVERS OF SUBROGATION AND INDEMNITY.

        10.1 INSURANCE. Tenant shall maintain throughout the Term each of the
insurance policies described on EXHIBIT D attached hereto and shall otherwise
comply with the obligations and requirements provided on EXHIBIT D. Landlord
shall maintain, throughout the Term, the insurance attributable to Landlord, as
described on Exhibit D.

        10.2 WAIVER OF SUBROGATION. Landlord and Tenant each waives any claim,
loss or cost it might have against the other for any injury to or death of any
person or persons, or damage to or theft, destruction, loss, or loss of use of
any property (a "LOSS"), to the extent the same is insured against (or is
required to be insured against under the terms hereof) under any "all risk"
property damage insurance policy covering the Building, the Premises, Landlord's
or Tenant's fixtures, personal property, leasehold improvements, or business,
regardless of whether the negligence of the other party caused such Loss.

        10.3 INDEMNITY. Subject to Paragraph 10.2, Tenant shall indemnify,
defend and hold Landlord, Spieker Properties, Inc., and each of their respective
directors, shareholders, partners, lenders, members, managers, affiliates and
employees (collectively, "LANDLORD INDEMNITEES") from and against all claims,
demands, proceedings, losses, obligations, liabilities, causes of action, suits,
judgments, damages, penalties, costs and expenses (including, without
limitation, reasonable attorneys' fees and court costs) arising from or asserted
in connection with the use or occupancy of the Premises by Tenant or any Tenant
Party, including, without limitation, by reason of any release of any Hazardous
Materials by Tenant or any Tenant Party in, under, on, or about the Project, or
any negligence or misconduct of Tenant or of any Tenant Party in or about the
Premises, or Tenant's breach of any of its covenants under this Lease, except in
each case to the extent arising from the negligence or willful misconduct of
Landlord or any Landlord Indemnitee. Except to the extent expressly provided in
this Lease, Tenant hereby waives all claims against and releases Landlord and
each Landlord Indemnitee for any injury to or death of persons, damage to
property or business loss in any manner related to (i) Tenant's use and
occupancy of the Premises, (ii) acts of God, (iii) acts of third parties, or
(iv) any matter outside of the reasonable control of Landlord. This Paragraph
10.3 shall survive termination or expiration of this Lease. Except to the extent
of Tenant's negligence or willful misconduct, Landlord shall indemnify, defend
and hold harmless Tenant from any loss, cost, liability, damage or expense
resulting from the negligence or willful misconduct of Landlord or its agents,
servants, employees, contractors or licensees in connection with Landlord's
activities with respect to the Project or from any default by Landlord under the
terms of this Lease (except for damage to the tenant improvements and Tenant's
personal property, fixtures, furniture and equipment in the Premises to the
extent such damage is covered by insurance Tenant is required to carry pursuant
to the terms of this Lease).

ll. SUBORDINATION; ATTORNMENT.

        11.1 SUBORDINATION. This Lease is subject and subordinate to all present
and future ground or master leases of the Project and to the lien of all
mortgages or deeds of trust (collectively, "SECURITY INSTRUMENTS") now or
hereafter encumbering the Project, if any, and to all renewals, extensions,
modifications, consolidations and replacements thereof, and to all advances made
or hereafter to be made upon the security of any such Security Instruments,
unless the holders of any such mortgages or deeds of trust, or the lessors under
such ground or master leases (such holders and lessors are sometimes
collectively referred to herein as "HOLDERS") require in writing that this Lease
be superior thereto. Notwithstanding the foregoing, Landlord represents and
warrants to Tenant that no deed of trust, mortgage or ground lease encumbers the
Building as of me date of this Lease. Notwithstanding any provision of this
Paragraph 11 to the contrary, any Holder of any Security Instrument may at any
time subordinate the lien of its Security Instrument to this Lease without
obtaining Tenant's consent by giving Tenant written notice of such
subordination, in which event this Lease shall be deemed to be senior to the
Security Instrument in question. Tenant shall, within fifteen (15) days of
request to do so by Landlord, execute, acknowledge and deliver to Landlord such
further commercially reasonable instruments or assurances as Landlord may deem
reasonably necessary or appropriate to evidence or confirm the subordination or
superiority of this Lease to any such Security Instrument; provided, however,
that Landlord agrees to provide Tenant with commercially reasonable
non-disturbance agreement(s) (each, an "SNDA") in favor of Tenant from any
ground lessors, mortgage holders or deed of trust holders of Landlord who later
come into existence at any time prior to the expiration of the Term of the Lease
in consideration of, and as a condition precedent to, Tenant's agreement to be
bound by this Paragraph 11. Tenant hereby irrevocably

                                      -11-
<PAGE>   13

authorizes Landlord to execute and deliver in the name of Tenant any instrument
or instruments required hereunder if Tenant fails to do so within said fifteen
(15) day period.

        11.2 ATTORNMENT. Subject to Tenant's receipt of the SNDA in accordance
with the terms of Paragraph 11.1, above, Tenant covenants and agrees that in the
event that any proceedings are brought for the foreclosure of any mortgage or
deed of trust, or if any ground or master lease is terminated, it shall attorn,
without any deductions or set-offs whatsoever, to the purchaser upon any such
foreclosure sale, or to the lessor of such ground or master lease, as the case
may be, if so requested to do so by such purchaser or lessor, and to recognize
such purchaser or lessor as "Landlord" under this Lease. If requested, Tenant
shall enter into a new lease with that successor on the same terms and
conditions as are contained in this Lease (for the unexpired portion of the Term
then remaining).

12. RULES AND REGULATIONS. Tenant shall comply, and shall cause each Tenant
Party to comply, with the Rules and Regulations of the Building which are
attached hereto as EXHIBIT A, and all such reasonable nondiscriminatory
modifications, additions, deletions and amendments thereto as Landlord shall
adopt in good faith from time to time. Landlord shall not be responsible to
Tenant for the non-compliance by any other tenant or occupant of the Building or
Project with any of such rules and regulations, any other tenant's or occupant's
lease or any Regulations, provided that Landlord agrees to use its reasonable
efforts to enforce said rules and regulations in a uniform, non-discriminatory
manner against all tenants of the Project.

        Notwithstanding anything to the contrary contained in this Lease,
Landlord agrees that the rules and regulations for the Project shall not be (i)
modified or enforced in any way by Landlord so as to unreasonably and materially
interfere with the permitted use set forth in this Lease or Tenant's access to
the Premises, Building or Project parking facility, or (ii) discriminatorily
enforced against Tenant and not against other tenants of the Project. Landlord
agrees that none of the rules and regulations for the Project shall be used to
prohibit the conduct of any business from the Premises which Tenant is permitted
to conduct, unless said conduct constitutes a nuisance to other tenants of the
Project or materially injures or impairs the reputation or image of the Project
as a professional office building project. In the event any other tenant or
occupant fails to comply with the rules and regulations for the Project, and
such non-compliance unreasonably and materially interferes with Tenant's use of
the Premises, Landlord shall use its reasonable efforts to cause such other
tenants and/or occupants to comply with such rules and regulations.

13. CONDEMNATION. If the entire Project or Premises are taken by right of
eminent domain or conveyed by Landlord in lieu thereof (a "TAKING"), this Lease
shall terminate as of the date of the Taking. If any part of the Project becomes
subject to a Taking and such Taking will prevent Tenant from conducting its
business in the Premises in a manner reasonably comparable to that conducted
immediately before such Taking for a period of more than one hundred eighty
(180) days, then Tenant may terminate this Lease as of the date of such Taking
by giving written notice to Landlord within thirty (30) days after the Taking,
and all Rent paid or payable hereunder shall be apportioned between Landlord and
Tenant as of the date of such Taking. If any material portion, but less than
all, of the Project, Building or the Premises becomes subject to a Taking, or if
Landlord is required to pay any of the proceeds received for a Taking to any
Holder of any Security Instrument, then Landlord may terminate this Lease by
delivering written notice thereof to Tenant within thirty (30) days after such
Taking, and all Rent paid or payable hereunder shall be apportioned between
Landlord and Tenant as of the date of such Taking. If this Lease is not so
terminated, then Base Rent thereafter payable hereunder shall be abated for the
duration of the Taking in proportion to that portion of the Premises rendered
untenantable by such Taking. If any Taking occurs, then Landlord shall receive
the entire award or other compensation for the land on which the Project is
situated, the Project, and other improvements taken, and Tenant may pursue a
claim against the condemnor for the value of Tenant's personal property and
fixtures which Tenant is entitled to remove under this Lease and moving and
relocation costs. Landlord and Tenant agree that the provisions of this
Paragraph 13 and the remaining provisions of this Lease shall exclusively govern
the rights and obligations of the parties with respect to any Taking of any
portion of the Premises, the Building, the Project or the land on which the
Building is located, and Landlord and Tenant hereby waive and release each and
all of their respective common law and statutory rights inconsistent herewith,
whether now or hereinafter in effect (including, without limitation, Section
1265.130 of the California Code of Civil Procedure, as amended from time to
time).

14. FIRE OR OTHER CASUALTY.

        14.1 REPAIR OF DAMAGE TO PREMISES BY LANDLORD. To the extent Landlord
does not have actual knowledge of same, Tenant shall promptly notify Landlord of
any damage to the Premises resulting from fire or any other casualty or any
condition existing in the Premises as a result of a fire or other casualty that
would give rise to the terms of this Paragraph 14. If the Premises, the Building
Structure, the Building Systems, or any common areas of the Project serving or
providing access to the Premises shall be damaged by fire or other casualty or
be subject to a condition existing as a result of a fire or other casualty,
Landlord shall promptly and diligently, subject to reasonable delays for
insurance adjustment or other matters beyond Landlord's reasonable control, and
subject to all other terms of this Paragraph 14, restore the Building Structure
and Building Systems and such common areas to substantially the same condition
as existed prior to the casualty, except for modifications required by zoning
and building codes and other applicable Regulations or by the holder of a
mortgage on the Building or Project or any other modifications to the common
areas reasonably deemed desirable by Landlord, provided access to the Premises,
the Project's parking facility, and any common restrooms serving the Premises
shall not be materially impaired. Tenant shall be responsible for the repair of
damage to the Premises, and Tenant's insurance proceeds shall be disbursed for
all costs and expenses incurred in connection with the repair of any such damage
pursuant to a commercially reasonable disbursement procedure mutually approved
by Landlord and Tenant. As long as the tenant improvements in the Premises are
rebuilt to their previously existing condition, Tenant shall be entitled to
retain any portion of the proceeds of the insurance described in Section 1 of
Exhibit D to this Lease in excess of the cost of such restoration, or if this
Lease terminates, Tenant shall receive all such insurance proceeds less an
amount reasonably necessary to replace the improvements in the Premises existing
as of the Term Commencement Date (which shall be paid to Landlord). Prior to the
commencement of construction, if this Lease does not terminate pursuant to
Paragraph 14.2 below or for any other reason, Tenant shall submit to Landlord,
for Landlord's review and approval, all plans, specifications and working
drawings relating thereto, and Landlord shall select, subject to Tenant's
reasonable approval, non-affiliated independent third party contractors to
perform such improvement work. Such submittal of plans and construction of
improvements shall be performed in a commercially reasonable manner. Landlord
shall not be liable for any inconvenience or annoyance to Tenant or any Tenant
Party, or injury to Tenant's business resulting in any way from such damage or
the repair thereof; provided however, that if such fire or other casualty shall
have damaged the Premises or common areas necessary for Tenant to reasonably
conduct Tenant's permitted use, Landlord shall, subject to the terms set forth
below, allow Tenant a proportionate abatement of rent, during the time and to
the extent the Premises-are unfit for occupancy for the permitted use under this
Lease, and not occupied by Tenant as a result thereof; provided, further, if the
Premises is damaged such that the remaining portion thereof is not sufficient to
allow Tenant to conduct its business operations from such remaining portion and
Tenant does not conduct its business operations therefrom, Landlord shall allow
Tenant a total abatement of rent during the time and to the extent the Premises
are unfit for occupancy for the Permitted Use, and not occupied by Tenant as a
result of the subject damage. Tenant's right to rent abatement pursuant to the
preceding sentences shall terminate as of the date Tenant should have completed
repairs to the Premises assuming Tenant used reasonable due diligence in
connection therewith.

        14.2 LANDLORD'S OPTION TO REPAIR. Notwithstanding the terms of Paragraph
14.1 of this Lease, Landlord may elect not to rebuild and/or restore the
Premises, the Building and/or the Project, and instead terminate this Lease by
notifying Tenant in writing of such termination within forty-five (45) days
after Landlord's discovery of the damage, such notice to include a termination
date giving Tenant one hundred twenty (120) days to vacate the Premises which
period will be extended by any Force Majeure on a day-for-day basis, but
Landlord may so elect only if (a) the Building or Project shall be damaged by
fire or other casualty or cause or be subject to a condition existing as a
result of such a fire or other casualty or cause, whether or not the Premises
are affected, and (b) one or more of the following conditions in (i), (ii),
(iii) or (iv), immediately below, is present: (i) in the reasonable judgment of
Landlord's licensed contractor, repairs cannot reasonably be completed within
two hundred forty (240) days of the date of discovery of the damage (when such
repairs are made without the payment of overtime or other premiums); (ii) the
holder of any mortgage on the Building and/or the Project, or ground lessor with
respect to the Project and/or the Building shall require that the insurance
proceeds or any portion thereof in excess of the "Landlord Contribution," as
that term is defined, below, be used to retire the mortgage debt, or shall

                                      -12-
<PAGE>   14

terminate the ground lease, as the case may be, and Landlord elects to terminate
the leases of all other tenants of the Project similarly affected by the damage
and destruction; or (iii) the damage is caused by an earthquake and is not fully
covered, except for the Landlord Contribution, by Landlord's insurance policies
(or by the insurance Landlord is required to carry under this Lease) and
Landlord elects to terminate the leases of all other tenants of the Project
similarly affected by the damage and destruction; provided, however, that if
Landlord does not elect to terminate this Lease pursuant to Landlord's
termination right as provided above, and the repairs cannot, in the reasonable
judgment of a licensed architect or contractor mutually and reasonably agreed
upon by Landlord and Tenant, be completed within two hundred forty (240) days
after the damage or destruction is discovered (which period shall not be subject
to extension as a result of any Force Majeure), Tenant may elect, no earlier
than forty-five (45) days after the date of the damage and not later than ninety
(90) days after the date of such damage, to terminate this Lease by written
notice to Landlord effective as of the date specified in the notice. At any
time, from time to time, after the date occurring forty-five (45) days after the
date the damage is discovered, Tenant may request that Landlord provide Tenant
with a certificate from the architect or contractor described above setting
forth such architect's or contractor's reasonable opinion of the date of
completion of the repairs and Landlord shall respond to such request within five
(5) business days. For purposes of this Paragraph 14.2, the "landlord
contribution" shall initially mean Two Hundred Thousand and No./100 Dollars
($200,000.00); provided, however, that such amount shall be reduced by an amount
equal to $3,333.33 on the first day of each month of the Term.

        14.3 DAMAGE NEAR END OF TERM. In the event that the Premises or the
Building is destroyed or damaged to any substantial extent (i.e., the time
reasonably required for repair exceeds ninety (90) days) during the last twelve
(12) months of the Term, then notwithstanding anything contained in the
Paragraph 14, either Landlord or Tenant shall have the option to terminate this
Lease by giving written notice to the other party of the exercise of such option
within thirty (30) days after such damage or destruction, in which event this
Lease shall cease and terminate as of the date of such notice, Tenant shall pay
the Base Rent and additional rent, properly apportioned up to such date of
damage, and both parties hereto shall thereafter be freed and discharged of all
further obligations hereunder, except as provided for in provisions of this
Lease which by their terms survive the expiration or earlier termination of the
Term.

        14.4 WAIVER OF STATUTORY PROVISIONS. The provisions of this Lease,
including this Paragraph 14, constitute an express agreement between Landlord
and Tenant with respect to any and all damage to, or destruction of, all or any
part of the Premises, the Building, or the Project, and any statute or
regulation of the State of California, including, without limitation, Sections
1932(2) and 1933(4) of the California Civil Code, with respect to any rights or
obligations concerning damage or destruction in the absence of an express
agreement between the parties, and any other statute or regulation, now or
hereafter in effect, shall have no application to this Lease or any damage or
destruction to all or any part of the Premises, the Building, or the Project.

15. PARKING.

                15.1 IN GENERAL. Tenant shall have the right, but not the
obligation, to utilize the number of parking passes set forth in the Basic Lease
Information. In connection with the foregoing, Tenant shall have nonexclusive
use of such portion of the parking facilities of the Project as are reasonably
designated by Landlord from time to time for such purpose for the parking of
passenger-size motor vehicles (including sport utility vehicles and pick-up
trucks) used by Tenant and Tenant Parties only (in accordance with the terms
hereof) and are not transferable without Landlord's approval (except in
connection with a Transfer permitted or approved pursuant to the terms of
Paragraph 9 of this Lease). Subject to the terms of this Lease, Tenant shall be
entitled to increase or decrease the number of parking passes rented by Tenant
upon not less than thirty (30) days notice to Landlord. Subject to availability
(as determined by Landlord), Tenant shall be entitled to lease parking passes in
addition to the number set forth in the Basic Lease Information. Tenant shall
pay the prevailing rate charged by Landlord from time to time for the parking
passes rented by Tenant pursuant to the terms hereof (the "PARKING CHARGE"),
provided that prior to the first (1") anniversary of the Term Commencement Date,
Landlord and Tenant hereby agree that the Parking Charge shall be $35.00 per
pass per month. In addition to the Parking Charge, Tenant shall be responsible
for all parking taxes applicable to the passes utilized by Tenant hereunder. The
use of such parking facilities shall be subject to the parking rules and
regulations attached hereto as EXHIBIT E, as such rules and regulations may be
modified by Landlord from time to time, for the use of such facilities.
Notwithstanding anything in the Basic Lease Information to the contrary, in no
event shall Landlord have any obligation to monitor Tenant's Visitor Spaces nor
shall Landlord have any liability in the event of any unauthorized use thereof.

                15.2 VALET SYSTEM. Tenant shall have the right to request
Landlord to supplement Tenant's parking by implementation of a stacked
parking/valet system (a "VALET SYSTEM"), which Valet System shall be subject in
all respects to Landlord's approval, in Landlord's reasonable discretion, and
shall also be subject to all applicable Regulations. Provided that Landlord
shall approve the nature, extent and all other aspects of the Valet System,
subject to all applicable Regulations, Landlord shall implement the Valet
System, if applicable, in accordance with the terms of this Paragraph 15.2, in
which event Tenant shall be solely and exclusively responsible for any and all
costs incurred by Landlord in the implementation and use of such Valet System
and for Landlord's prevailing charge for any supplemental parking provided to
Tenant.

                15.3 VISITOR PARKING. Reasonable visitor parking shall be
available at the Project. Visitor parking rates charged by Landlord shall be
reasonably comparable to the visitor parking rates being charged at the
"Comparable Buildings," as that term is defined in Paragraph 22.5, below.

        16. EVENTS of DEFAULT.

                16.1 TENANT DEFAULTS. Each of the following occurrences shall be
an "EVENT of DEFAULT" and shall constitute a material default and breach of this
Lease by Tenant: (a) any failure by Tenant to pay any installment of Base Rent
Additional Rent or to make any other payment required to be made by Tenant
hereunder within five (5) days following written notice that said amount was not
paid when due; (b) the abandonment or vacation of the Premises by Tenant,
provided, however, that unless Tenant is using the Premises for a retail use,
abandonment or vacation of the Premises shall not be an Event of Default so long
as no other Event of Default has occurred hereunder; (c) any failure by Tenant
to execute and deliver any estoppel certificate or other document or instrument
described in Paragraphs 10 (insurance), 11 (subordination) or 21.2 (estoppel
certificates) requested by Landlord, where such failure continues for five (5)
business days after delivery of written notice of such failure by Landlord to
Tenant; (d) any failure by Tenant to fully perform any other obligation of
Tenant under this Lease, where such failure continues for thirty (30) days
(except where a shorter period of time is specified in this Lease, in which case
such shorter time period shall apply) after delivery of written notice of such
failure by Landlord to Tenant, provided that if the nature of such default is
such that the same cannot reasonably be cured within a thirty (30) day period,
Tenant shall not be deemed to be in default if it diligently commences such cure
within such period and thereafter diligently proceeds to rectify and cure said
default as soon as possible; or (e) the voluntary or involuntary filing of a
petition by or against Tenant or any general partner of Tenant (i) in any
bankruptcy or other insolvency proceeding, (ii) seeking any relief under any
state or federal debtor relief law, (iii) for the appointment of a liquidator or
receiver for all or substantially all of Tenant's property or for Tenant's
interest in this Lease, or (iv) for the reorganization or modification of
Tenant's capital structure (provided, however, that if such a petition is filed
against Tenant, then such filing shall not be an Event of Default unless Tenant
fails to have the proceedings initiated by such petition dismissed within sixty
(60) days after the filing thereof). Any notice of any failure of Tenant
required under this Paragraph 16 shall be in lieu of, and not in addition to,
any notice required under Section 1161 et seq. of the California Code of Civil
Procedure.

        16.2 LANDLORD DEFAULTS.

                16.2.1 IN GENERAL. Landlord shall not be in default under this
Lease unless Landlord fails to perform obligations required of Landlord within
forty-five (45) days after written notice is delivered by Tenant to Landlord and
to the holder of any mortgages or deeds of trust (collectively, "LENDER")
covering the Premises whose name and address shall have theretofore been
furnished to Tenant in writing, specifying the obligation which Landlord has
failed to perform; provided, however, that if the nature of Landlord's
obligation is such that more than forty-five (45)

                                      -13-
<PAGE>   15

days are required for performance, then Landlord shall not be in default if
Landlord or Lender commences performance within such forty-five (45) day period
and thereafter diligently prosecutes the same to completion.

                16.2.2 ABATEMENT OF RENT. In the event that Tenant is prevented
from using, and does not use, the Premises or any portion thereof, as a result
of (i) any repair, maintenance or alteration performed by Landlord (including
repairs, maintenance and alterations required or permitted by Landlord
hereunder), or which Landlord failed to perform, after the Term Commencement
Date and required by this Lease, which substantially interferes with Tenant's
use of or ingress to or egress from the Building, Project, or Premises or the
Project's parking facility; (ii) any failure to provide services, utilities or
ingress to and egress from the Building, Project, or Premises or the Project
parking facility as required by this Lease; (iii) damage and destruction of or
eminent domain proceedings in connection with the Premises, Building, the
Project or the Project's parking facility servicing the Project, or (iv) the
presence of hazardous materials (as defined by applicable law) (not brought on
the Premises by Tenant Parties) in violation of Regulations which poses a
material health risk to the environment or the Premises (any such set of
circumstances as set forth in items (i) through (iv), above, to be known as an
"ABATEMENT EVENT"), then Tenant shall give Landlord notice of such Abatement
Event, and if such Abatement Event continues for five (5) consecutive business
days after Landlord's receipt of any such notice, or occurs for ten (10)
nonconsecutive business days in a twelve (12) month period (provided Landlord is
sent a notice of each of such Abatement Event) (in either of such events, the
"ELIGIBILITY PERIOD"), then the Base Rent and Tenant's Proportionate Share of
Operating Expenses and Tenant's parking charges shall be abated or reduced, as
the case may be, after expiration of the Eligibility Period for such time that
Tenant continues to be so prevented from using, and does not use, the Premises,
or a portion thereof, in the proportion that the rentable area of the portion of
the Premises that Tenant is prevented from using, and does not use ("UNUSABLE
AREA"), bears to the total rentable area of the Premises and Landlord shall pay
to Tenant, to the extent covered (except for any deductible amount) by insurance
retained by Landlord any incremental reasonable, out-of-pocket expense that the
Tenant incurs in relocating the functions previously performed in the Unusable
Area to a different location. For this purpose, an incremental expense shall be
any expense that the Tenant incurs in relocating from the Unusable Area to a
temporary location and then relocating back to the Unusable Area (after such
area has been made fit for Tenant's Permitted Use) that Tenant would not have
had to incur but for such relocation; provided, however, in the event that
Tenant is prevented from using, and does not use, the Unusable Area for a period
of time in excess of the Eligibility Period and the remaining portion of the
Premises is not sufficient to allow Tenant to effectively conduct its business
therein, and if Tenant does not conduct its business from such remaining
portion, then for such time after expiration of the Eligibility Period during
which Tenant is so prevented from effectively conducting its business therein,
the Base Rent and Tenant's Proportionate Share of Operating Expenses and
Tenant's parking charges for the entire Premises shall be abated for such time
as Tenant continues to be so prevented from using, and does not use, the
Premises. If, however, Tenant reoccupies any portion of the Premises during such
period, the rent allocable to such reoccupied portion, based on the proportion
that the rentable area of such reoccupied portion of the Premises bears to the
total rentable area of the Premises, shall be payable by Tenant from the date
Tenant reoccupies such portion of the Premises. Such right to abate Base Rent,
Tenant's Proportionate Share of Direct Expenses and Tenant's parking charges
shall be Tenant's sole and exclusive remedy at law or in equity for an Abatement
Event; provided, however, that (a) nothing in this Paragraph 16.2.2, shall
impair Tenant's rights under Paragraph 16.2.1, above, and (b) if Landlord has
not cured such Abatement Event within one hundred eighty (180) days after
receipt of notice from Tenant, Tenant shall have the right to terminate this
Lease during the first ten (10) business days of each calendar month following
the end of such 180-day period until such time as Landlord has cured the
Abatement Event, which right may be exercised only by delivery of thirty (30)
days' notice to Landlord (the "ABATEMENT EVENT TERMINATION NOTICE") during such
ten (10) business day period, and shall be effective as of a date set forth in
the Abatement Event Termination Notice (the "ABATEMENT EVENT TERMINATION DATE"),
which Abatement Event Termination Date shall not be less than thirty (30) days,
and not more than one (1) year, following the delivery of the Abatement Event
Termination Notice. Notwithstanding anything contained in this Paragraph 16.2.2
to the contrary, Tenant's Abatement Event Termination Notice shall be null and
void (but only in connection with the first notice sent by Tenant with respect
to each separate Abatement Event) if Landlord cures such Abatement Event within
such thirty (30) day period following receipt of the Abatement Event Termination
Notice. If Tenant's right to abatement occurs because of an eminent domain
taking, condemnation and/or because of damage or destruction to the Premises,
the Project's parking facility, and/or the Project, Tenant's abatement period
shall continue until Tenant has been given sufficient time, and sufficient
ingress to, and egress from the Premises, to rebuild such portion it is required
to rebuild, to install its property, furniture, fixtures, and equipment to the
extent the same shall have been removed as a result of such damage or
destruction or temporary taking and to move in over a weekend. To the extent
Tenant is entitled to abatement because of an event covered by Paragraphs 13 or
14 of this Lease, then the Eligibility Period shall not be applicable. Except as
provided in this Paragraph 16.2.2, nothing contained herein shall be interpreted
to mean that Tenant is excused from paying rent due hereunder.

17. REMEDIES. Upon the occurrence of any Event of Default by Tenant, Landlord
shall have, in addition to any other remedies available to Landlord at law or in
equity (all of which remedies shall be distinct, separate, and cumulative), the
option to pursue any one (1) or more of the following remedies, each and all of
which shall be cumulative and nonexclusive, without any notice or demand
whatsoever:

        (a) Terminate this Lease, and Landlord may recover from Tenant the
following: (i) the worth at the time of any unpaid rent which has been earned at
the time of such termination; plus (ii) the worth at the time of award of the
amount by which the unpaid rent which would have been earned after termination
until the time of award exceeds the amount of such rental loss that Tenant
proves could have been reasonably avoided; plus (iii) the worth at the time of
award of the amount by which the unpaid rent for the balance of the term after
the time of award exceeds the amount of such rental loss that Tenant proves
could have been reasonably avoided; plus (iv) any other amount necessary to
compensate Landlord for all the detriment proximately caused by Tenant's failure
to perform its obligations under this Lease or which in the ordinary course of
things would be likely to result therefrom; and (v) at Landlord's election, such
other amounts in addition to or in lieu of the foregoing as may be permitted
from time to time by applicable law. The term "rent" as used in this Paragraph
17(a) shall be deemed to be and to mean all sums of every nature required to be
paid by Tenant pursuant to the terms of this Lease, whether to Landlord or to
others. As used in Paragraphs 17(a)(i) and (ii), above, the "worth at the time
of award" shall be computed by allowing interest at the Interest Rate, but in no
case greater than the maximum amount of such interest permitted by law. As used
in Paragraph 17(a)(iii) above, the "worth at the time of award" shall be
computed by discounting such amount at the discount rate of the Federal Reserve
Bank of San Francisco at the time of award plus one percent (1%).

        (b) Landlord shall have the remedy described in California Civil Code
Section 1951.4 (lessor may continue lease in effect after lessee's breach And
abandonment and recover rent as it becomes due, if lessee has the right to
sublet or assign, subject only to reasonable limitations). Accordingly, if
Landlord does not elect to terminate this Lease on account of any Event of
Default by Tenant, Landlord may, from time to time, without terminating this
Lease, enforce all of its rights and remedies under this Lease, including the
right to recover all Rent as it becomes due.

        (c) Landlord shall at all times have the rights and remedies (which
shall be cumulative with each other and cumulative and in addition to those
rights and remedies available under Paragraphs 17(a) and 17(b) above, or any law
or other provision of this Lease), without prior demand or notice except as
required by applicable law, to seek any declaratory, injunctive, or other
equitable relief, and specifically enforce this Lease, or restrain or enjoin a
violation or breach of any provision hereof.

        (d) Notwithstanding anything in this Lease to the contrary, (i) upon the
occurrence of an Event of Default by Tenant, if the Premises or any portion
thereof are sublet, Landlord may, at its option and in addition and without
prejudice to any other remedies herein provided or provided by law, collect
directly from the sublessee(s) all rentals becoming due to the Tenant and apply
such rentals against other sums due hereunder to Landlord; (ii) without
prejudice to any other right or remedy of Landlord, if Tenant shall be in
default under this Lease beyond any applicable notice and cure period, Landlord
may cure the same at the expense of Tenant (A) immediately and without notice in
the case (1) of emergency, (2) where such default unreasonably interferes with
any other tenant in the Building, or (3) where such default will result in the
violation of any Regulation or the cancellation of any insurance policy
maintained by landlord, and (B) in any other case if such default continues for
ten (10) business days following the receipt by Tenant of notice of such default
from Landlord and all costs incurred by Landlord in curing such default(s),
including, without limitation, attorneys' fees, shall be reimbursable by Tenant
as Rent hereunder within thirty (30) days following demand, together with
interest thereon, from the date such costs were incurred by Landlord, at the
Default Rate; and (iii) Tenant hereby waives for Tenant and for all those
claiming

                                      -14-
<PAGE>   16

under tenant all rights now and hereafter existing to redeem by order or
judgment of any court or by any legal process or writ, tenant's right of
occupancy of the Premises after any termination of this Lease.

18. SURRENDER OF PREMISES. No act by Landlord shall be deemed an acceptance of a
surrender of the Premises, and no agreement to accept a surrender of the
Premises shall be valid unless it is in writing and signed by Landlord. At the
expiration or earlier termination of this Lease, Tenant shall deliver to
Landlord all keys (including any electronic access devices and the like) to the
Premises that are in Tenant's possession, and Tenant shall deliver to Landlord
the Premises in the same condition as existed on the date Tenant originally took
possession thereof, ordinary wear and tear excepted, provided that ordinary wear
and tear shall not include repair and clean up items. In addition, prior to the
expiration of the Term or any sooner termination thereof, (a) Tenant shall
remove such Alterations as Landlord shall request (subject to the terms of
Paragraph 7.1.1 of this Lease) and shall restore the portion of the Premises
affected by such Alterations and such removal to its condition existing
immediately prior to the making of such Alterations, (b) Tenant shall remove
from the Premises all unattached trade fixtures, furniture, equipment and
personal property located in the Premises, including, without limitation, phone
equipment, wiring, cabling and all garbage, waste and debris, and (c) Tenant
shall repair all damage to the Premises or the Project caused by any such
removal including, without limitation, full restoration of all holes and gaps
resulting from any such removal and repainting required thereby. All personal
property and fixtures of Tenant not so removed shall, to the extent permitted
under applicable Regulations, be deemed to have been abandoned by Tenant and may
be appropriated, sold, stored, destroyed, or otherwise disposed of by Landlord
without notice to Tenant and without any obligation to account for such items.

19. HOLDING OVER. If Tenant holds over after the expiration or earlier
termination of the Term hereof, with or without the express or implied consent
of Landlord, Tenant shall become and be only a tenant at sufferance at a daily
rent equal to the product of (i) a fraction, the numerator of which is one (1)
and the denominator of which is the number of days in the applicable calendar
month, and (ii) by 150% of the monthly installment of Base Rent payable by
Tenant immediately prior to such expiration or termination for the first one
hundred twenty (120) days of such holdover, and 200% thereof thereafter, and
otherwise upon the terms, covenants and conditions herein specified, so far as
applicable, as reasonably determined by Landlord. Neither any provision hereof
nor any acceptance by Landlord of any rent after any such expiration or earlier
termination (including, without limitation, through any "LOCKBOX") shall be
deemed a consent to any holdover hereunder or result in a renewal of this Lease
or an extension of the Term, or any waiver of any of Landlord's rights or
remedies with respect to such holdover. Notwithstanding any provision to the
contrary contained herein, (i) Landlord expressly reserves the right to require
Tenant to surrender possession of the Premises upon the expiration of the Term
or upon the earlier termination hereof or at any time during any holdover, and
the right to assert any remedy at law or in equity to evict Tenant and collect
damages in connection with any such holdover, and (ii) Tenant shall indemnify,
defend and hold Landlord harmless from and against any and all claims, demands,
actions, proceedings, losses, damages, liabilities, obligations, penalties,
costs and expenses, including, without limitation, all lost profits and other
consequential damages, attorneys' fees, consultants' fees and court costs
incurred or suffered by or asserted against Landlord by reason of Tenant's
failure to surrender the Premises on the expiration or earlier termination of
this Lease.

20. GOOD FAITH. Except (i) for matters for which there is a standard of consent
or discretion specifically set forth in this Lease; (ii) matters which could
have an adverse effect on the Building Structure or the Building Systems, or
which could affect the exterior appearance of the Building, or (iii) matters
covered by Paragraph 3 (Rent and Operating Expenses), Paragraph 10 (Insurance;
Waivers of Subrogation and Indemnity), or Paragraph 16 (Events of Default) of
this Lease (collectively, the "EXCEPTED MATTERS"), any time the consent of
Landlord or Tenant is required under this Lease, such consent shall not be
unreasonably withheld or delayed, and, except with regard to the Excepted
Matters, whenever this Lease grants Landlord or Tenant the right to take action,
exercise discretion, establish Rules and Regulations or make an allocation or
other determination, Landlord and Tenant shall act reasonably and in good faith.

21. MISCELLANEOUS.

        21.1 LANDLORD TRANSFERS AND LIABILITY; CONSEQUENTIAL DAMAGES. Landlord
may, without restriction, sell, assign or transfer in any manner all or any
portion of the Project, any interest therein or any of Landlord's rights under
this Lease, provided that the transferee assumes Landlord's obligations under
this Lease. If Landlord assigns its rights under this Lease, then Landlord shall
automatically be released from any further obligations thereafter arising
hereunder so long as the Landlord transfers to the transferee the LOC and the
security deposit, if any, provided that the assignee thereof assumes in writing
all of Landlord's obligations hereunder accruing after such assignment. The
liability of Landlord to Tenant for any default by Landlord under the terms of
this Lease or with respect to any obligation or liability related to the
Premises or the Project shall be recoverable only from the interest of Landlord
in the Project, and neither Landlord nor any affiliate thereof shall have any
personal liability with respect thereto. Notwithstanding anything to the
contrary contained in this Lease, nothing in this Lease shall impose any
obligations on Tenant or Landlord to be responsible or liable for, and each
hereby releases the other from all liability for, consequential damages, other
than those consequential damages incurred by Landlord in connection with a
holdover of the Premises by Tenant after the expiration or earlier termination
of this Lease.

        21.2 ESTOPPEL CERTIFICATES; FINANCIAL STATEMENTS. At any time and from
time to time during the Term, Tenant shall, without charge, execute, acknowledge
and deliver to Landlord within ten (10) business days after Landlord's request
therefor, an estoppel certificate in recordable form containing such factual
certifications and other provisions as are found in the estoppel certificate
forms reasonably requested by institutional lenders and purchasers. Tenant
agrees in any case that (a) the foregoing certificate may be relied on by anyone
holding or proposing to acquire any interest in the Project from or through
Landlord or by any mortgagee or lessor or prospective mortgagee or lessor of the
Project or of any interest therein and (b) the form of estoppel certificate
shall be in such commercially reasonable form as Landlord shall reasonably
select. If Tenant is not a public company reporting under applicable federal
securities Regulations, at the request of Landlord from time to time, Tenant
shall provide to Landlord within ten (10) days of Landlord's request therefor
tenant's and any guarantor's current financial statements.

        21.3 NOTICES. Notices, requests, consents or other communications
desired or required to be given by or on behalf of Landlord or Tenant under this
Lease shall be effective only if given in writing and sent by (a) registered or
certified United States mail, postage prepaid. return receipt requested, (b)
nationally recognized express mail courier that provides written evidence of
delivery, fees prepaid, or (c) Facsimile and addressed as set forth in the Basic
Lease Information, or at such other address in the State of California as may be
specified from time to time, in writing. Any such notice, request, consent, or
other communication shall only be deemed given (i) if sent by registered or
certified United States mail, on the day it is officially delivered to or
refused by the intended recipient, (ii) if sent by nationally recognized express
mail courier, on the date it is officially recorded by such courier, (iii) if
delivered by facsimile, on the date the sender obtains written telephonic
confirmation that the electronic transmission was received, or (iv) if delivered
personally, upon delivery or, if refused by the intended recipient, upon
attempted delivery.

        21.4 PAYMENT BY TENANT; Non-Waiver. Landlord's acceptance of Rent
(including, without limitation, through any "lockbox") following an Event of
Default shall not waive Landlord's rights regarding such Event of Default. No
waiver by Landlord or Tenant of any violation or breach of any of the terms
contained herein shall waive Landlord's or Tenant's rights regarding any future
violation of such terms. Landlord's acceptance of any partial payment of Rent
shall not waive Landlord's rights with regard to the remaining portion of the
Rent that is due, regardless of any endorsement or other statement on any
instrument delivered in payment of Rent or any writing delivered in connection
therewith; accordingly, Landlord's acceptance of a partial payment of Rent shall
not constitute an accord and satisfaction of the full amount of the Rent that is
due. Payment by Tenant of any amount due and owing hereunder shall not
constitute a waiver of any preceding breach by Landlord of any term, covenant or
condition of this Lease.

        21.5 CERTAIN RIGHTS RESERVED BY LANDLORD. Landlord hereby reserves and
shall have the following rights with respect to the Premises and the Project:
(a) to decorate and to make inspections, repairs, alterations, additions,
changes, or improvements, whether structural or otherwise, in and about the
Project, the Building, the Premises or any part thereof; to enter upon the
Premises and, during the continuance of any such

                                      -15-
<PAGE>   17

work, to temporarily close doors, entryways, public space, and corridors in the
Project or the Building; to interrupt or suspend temporarily Building services
and facilities; to change the name of the Building or the Project; and to change
the arrangement and location of entrances or passageways, doors, and doorways,
corridors, elevators, stairs, restrooms, common areas, or other public parts of
the Building or the Project; (b) to take such measures as Landlord deems
advisable in good faith for the security of the Building and its occupants; to
temporarily deny access to the Building to any person; and to close the Building
after ordinary business hours and on Sundays and Holidays, subject, however, to
Tenant's right to enter when the Building is closed after ordinary business
hours under such rules and regulations as Landlord may reasonably prescribe from
time to time during the Term; and (c) to enter the Premises at reasonable hours
(or at any time in an emergency) to inspect the same, to perform repairs, to
take any action authorized hereunder, or to show the Premises to prospective
purchasers or lenders, or, during the last six (6) months of the Term,
prospective tenants. All of Landlord's entries and the performance of Landlord's
work pursuant to this Lease, shall be scheduled and performed, as applicable, so
as to use commercially reasonable efforts to minimize interference with Tenant's
use of and access to the Premises and parking facilities. Tenant may, subject to
Landlord's prior approval, designate certain areas of the Premises as "Security
Areas" should Tenant require such areas for the purpose of securing certain
valuable property or confidential information. Landlord may only enter such
Security Areas upon one (t) business days' notice to Tenant which notice shall
specify the date and time of such entry by Landlord; provided, however, that
Landlord may enter the Security Areas without notice to Tenant in the event of
an emergency, in which case Landlord shall provide Tenant with notice of such
entry promptly thereafter.

        21.6 MISCELLANEOUS. If any clause or provision of this Lease is illegal,
invalid, or unenforceable under present or future laws, then the remainder of
this Lease shall not be affected thereby. This Lease may not be amended except
by instrument in writing signed by Landlord and Tenant. No provision of this
Lease shall be deemed to have been waived by Landlord unless such waiver is in
writing signed by Landlord. The terms and conditions contained in this Lease
shall inure to the benefit of and be binding upon the parties hereto, and upon
their respective successors in interest and legal representatives, except as
otherwise herein expressly provided. This Lease constitutes the entire agreement
between Landlord and Tenant regarding the subject matter hereof and supersedes
all oral statements and prior writings relating thereto. If Tenant is comprised
of more than one party, each such party shall be jointly and severally liable
for Tenant's obligations under this Lease. All exhibits and attachments attached
hereto are incorporated herein by this reference. This Lease shall be governed
by and construed in accordance with the laws of the State of California. In any
action which Landlord or Tenant brings to enforce its respective rights
hereunder, the unsuccessful party shall pay all costs incurred by the prevailing
party, including without limitation, reasonable attorneys' fees and court costs.
Tenant shall not record this Lease or any memorandum hereof. TO THE MAXIMUM
EXTENT PERMITTED BY LAW, LANDLORD AND TENANT EACH WAIVE RIGHT TO TRIAL BY JURY
IN ANY LITIGATION ARISING OUT OF OR WITH RESPECT TO THIS LEASE. Submission of
this Lease to Tenant does not constitute an option or offer to lease and this
Lease is not effective otherwise until execution and delivery by both Landlord
and Tenant. This Lease may be executed in any number of counterparts, each of
which shall be deemed an original. Time is of the essence as to the performance
of each covenant hereunder in which time of performance is a factor.

22. OPTION TERM.

        22.1 ORATION RIGHT. Landlord hereby grants the Original Tenant or an
Affiliate one (1) option to extend the Term for a period of five (5) years (the
"OPTION TERM"), which option shall be exercisable only by written notice
delivered by Tenant to Landlord as provided below, provided that, as of the date
of delivery of such notice, Tenant is not in default under this Lease after the
expiration of any applicable cure period. Upon the proper exercise of such
option to extend, and provided that, at Landlord's option, as of the end of the
initial Term, Tenant is not then in default under this Lease after the
expiration of any applicable cure period, the Term, for the entire Premises,
shall be extended for a period of five (5) years. The rights contained in this
Paragraph 22 shall be personal to the Original Tenant or an Affiliate, as
applicable, and may only be exercised by the Original Tenant or an Affiliate, as
applicable (and not any other assignee, sublessee or other transferee of the
Original Tenant's interest in this Lease) if the Original Tenant or an
Affiliate, as applicable, occupies at least seventy-five percent (75%) of the
Premises.

        22.2 ORATION RENT. The rent payable by Tenant during the Option Term
(the "Option Rent") shall be equal to the "Fair Market Rental Rate," as that
term is defined in Paragraph 22.5, below.

        22.3 EXERCISE OF OPTION.

                22.3.1 WITH AN ORATION INTEREST NOTICE. The option contained in
this PARAGRAPH 22 shall be exercised by Tenant, if at all, only in the following
manner or as set forth in Paragraph 22.3.2, below: (i) Tenant shall deliver
written notice to Landlord (the "Option Interest Notice") not more than fourteen
(14) months nor less than twelve (12) months prior to the expiration of the
initial Term, stating that Tenant may be interested in exercising its option;
(ii) Landlord, after receipt of Tenant's notice, shall deliver notice (the
"OPTION RENT NOTICE") to Tenant not less than ten (10) months prior to the
expiration of the initial Term, setting forth the Option Rent; and (iii) if
Tenant wishes to exercise such option, Tenant shall, on or before the date
occurring nine (9) months prior to the expiration of the initial Term (the
"Option Deadline Date"), exercise the option by delivering written notice
thereof to Landlord, and upon, and concurrent with, such exercise, Tenant may,
at its option, accept or reject the Option Rent contained in the Option Rent
Notice. In the event Tenant objects to the Option Rent or is deemed to object to
the Option Rent as set forth in Paragraph 22.3.3, below, the parties shall
follow the procedure, and the Option Rent shall be determined, as set forth in
Paragraph 22.4, below.

                22.3.2 WITHOUT AN OPTION INTEREST NOTICE. Notwithstanding
anything in Paragraph 22.3.1 to the contrary, in the event that Tenant shall
fail to timely deliver the Option Interest Notice, Tenant shall nevertheless be
permitted to exercise its right to lease the Premises during the Option Term by
delivery of irrevocable notice of such election on or before the Option Deadline
Date, in which event (i) Landlord shall deliver to Tenant the Option Rent Notice
within thirty (30) days following receipt of such notice, and (ii) Tenant may,
within fifteen (15) days following receipt of such Option Rent Notice, accept or
reject the Option Rent set forth in the Option Rent Notice. In the event Tenant
objects to the Option Rent or is deemed to object to the Option Rent as set
forth in Paragraph 22.3.3, below, the parties shall follow the procedure and the
Option Rent shall be determined pursuant to the terms of Paragraph 22.4, below.

                22.3.3 OTHER TERMS. In the event that, in exercising its right
to lease the Premises during the Option Term in accordance with the terms of
this Paragraph 22.3, Tenant shall fail to affirmatively accept the Option Rent
contained in the Option Rent Notice, then Tenant shall be deemed to have
rejected the same, and the Option Rent shall be determined in accordance with
the remaining terms of this Paragraph 22.4.

        22.4 DETERMINATION OF OPTION RENT. In the event Tenant timely and
appropriately objects to the Option Rent or is deemed to have rejected the
Option Rent, Landlord and Tenant shall attempt to agree upon the Fair Market
Rental Rate for the Premises, using reasonable good-faith efforts. If Landlord
and Tenant fail to reach agreement within thirty (30) days following Tenant's
objection or deemed objection to the Option Rent (the "OUTSIDE AGREEMENT DATE"),
then each party shall make a separate determination of the Option Rend as the
case may be, within five (5) business days after the Outside Agreement Date, and
such determinations shall be submitted to arbitration in accordance with
Paragraphs 22.4.1 through 22.4.7, below.

        22.4.1 Landlord and Tenant shall each appoint one arbitrator who shall
by profession be a real estate broker, appraiser or attorney who shall have been
active over the five (5) year period ending on the date of such appointment in
the leasing (or appraisal, as the case may be) of first class office properties
in the Los Angeles County, California. The determination of the arbitrators
shall be limited solely to the issue area of whether Landlord's or Tenant's
submitted Fair Market Rental Rate, is the closest to the actual Fair Market
Rental Rate as determined by the arbitrators, taking into account the
requirements of Paragraph 22.5 of this Lease. Each such arbitrator shall be
appointed within fifteen (15) days after the applicable Outside Agreement Date.
Landlord and Tenant may consult with their selected arbitrators prior to
appointment and may select an

                                      -16-
<PAGE>   18

arbitrator who is favorable to their respective positions. The arbitrators so
selected by Landlord and Tenant shall be deemed "Advocate Arbitrators."

                22.4.2 The two Advocate Arbitrators so appointed shall be
specifically required pursuant to an engagement letter within ten (10) days of
the date of me appointment of the last appointed Advocate Arbitrator to agree
upon and appoint a third arbitrator(" Neutral Arbitrator") who shall be
qualified under the same criteria set forth hereinabove for qualification of the
two Advocate Arbitrators, except that neither the Landlord or Tenant or either
patties Advocate Arbitrator may, directly or indirectly, consult with the
Neutral Arbitrator prior or subsequent to his or her appearance. The Neutral
Arbitrator shall be retained via 4n engagement letter jointly prepared by
Landlord's counsel and Tenant's counsel.

                22.4.3 The three arbitrators shall within thirty (30) days of
the appointment of the Neutral Arbitrator reach a decision as to Fair Market
Rental Rate and determine whether the Landlord's or Tenant's determination of
Fair Market Rental Rate as submitted pursuant to Paragraph 22.4, above, is
closest to Fair Market Rental Rate as determined by the arbitrators and
simultaneously publish a ruling ("Award") indicating whether Landlord's or
Tenant's submitted Fair Market Rental Rate is closest to the Fair Market Rental
Rate as determined by the arbitrators. Following notification of the Award, the
Landlord's or Tenant's submitted Fair Market Rental Rate determination,
whichever is selected by the arbitrators as being closest to Fair Market Rental
Rate, shall become the then applicable Fair Market Rental Rate.

                22.4.4 The Award issued by the majority of the three arbitrators
shall be binding upon Landlord and Tenant.

                22.4.5 If either Landlord or Tenant fail to appoint an Advocate
Arbitrator within fifteen (15) days after the applicable Outside Agreement Date,
either party may petition the presiding judge of the Superior Court of Los
Angeles County to appoint such Advocate Arbitrator subject to the criteria in
Paragraph 22.4.1 of this Lease, or if he or she refuses to act, either party may
petition any judge having jurisdiction over the parties to appoint such Advocate
Arbitrator.

                22.4.6 If the two Advocate Arbitrators fail to agree upon and
appoint the Neutral Arbitrator, then either party may petition the presiding
judge of the Superior Court of Los Angeles County to appoint the Neutral
Arbitrator, subject to criteria in Paragraph 22.4.1 of this Lease, or if he or
she refuses to act, either party may petition any judge having jurisdiction over
the parties to appoint such arbitrator.

                22.4.7 The cost of arbitration shall be paid by Landlord and
Tenant equally.

        22.5 FAIR MARKET RENTAL RATE. The "FAIR MARKET RENTAL RATE" shall be
equal to the rent (including additional rent and considering any "base year" or
"expense stop" applicable thereto), including all escalations, at which tenants,
are leasing non-sublease, non-encumbered, nonequity space comparable in size,
location and quality to the Premises, for a similar lease term, in an arms
length transaction, which comparable space is located in the Project and in
"Comparable Buildings," as that term is defined, below ("Comparable
Transactions") during the twelve (12) month period immediately preceding the
exercise by Tenant of the Option Term, in either case taking into consideration
the following concessions (the "Concessions"): (a) rental abatement concessions,
if any, being granted such tenants in connection with such comparable space,
(b) tenant improvements or allowances provided or to be provided for such
comparable space, taking into account, and deducting the value of, the existing
improvements in the Premises, such value to be based upon the age, design,
quality of finishes, and layout of the improvements and the extent to which the
same could be utilized by a general office user as contrasted with this specific
Tenant, and (c) all other monetary and non-monetary concessions, if any, being
granted such tenants in connection with such comparable space; provided,
however, that notwithstanding anything to the contrary herein, no consideration
shall be given to (i) the fact that Landlord is or is not required to pay a real
estate brokerage commission or the fact that the Comparable Transactions do or
do not involve the payment of real estate brokerage commissions, and (II) any
period of rental abatement, if any, granted to tenants in Comparable
Transactions in connection with the design, permitting and construction of
tenant improvements in such comparable spaces. In analyzing such comparable
spaces, the arbitrators shall give due consideration to the method by which the
square footage of such space has been calculated. The Fair Market Rental Rate
shall additionally include a determination as to whether, and if so to what
extent, Tenant must provide Landlord with financial security, such as a letter
of credit or guaranty, for Tenant's rent obligations during the Option Term.
Such determination shall be made by reviewing the extent of financial security
then generally being imposed in Comparable Transactions from tenants of
comparable financial condition and credit history to the then existing financial
condition and credit history of Tenant (with appropriate adjustments to account
for differences in the then-existing financial condition of Tenant and such
other tenants). If in determining the Fair Market Rental Rate, Tenant is deemed
to be entitled to a tenant improvement or comparable allowance for the
improvement of the Premises (the total dollar value of such allowance, the
"OPTION TERM TI ALLOWANCE"), Landlord may, at Landlord's sole option, elect any
or a portion of the following: (A) to grant some or all of the Option Term TI
Allowance to Tenant as a lump sum payment to Tenant, and/or (B) in lieu of
making a lump sum payment (or portion thereof) to Tenant, to reduce the rental
rate component of the Fair Market Rental Rate to be an effective rental rate
which takes into consideration that Tenant will not receive a payment of such
Option Term TI Allowance, or portion thereof (in which case the Option Term TI
Allowance, or portion thereof, evidenced in the effective rental rate shall not
be paid to Tenant). For purposes of this Lease, the "Comparable Buildings" shall
mean comparable first-class, mid-rise office buildings located in "West Los
Angeles" (which shall include all of its submarkets as set forth in applicable
BOMA-Los Angeles publications).

23. TELECOMMUNICATIONS EQUIPMENT.

        23.1 IN GENERAL. At any time during the Lease Term, subject to
applicable regulations and the terms of this Paragraph 23, Tenant may install,
at Tenant's sole cost and expense, one (1) satellite dish (which shall not
exceed thirty-six (36) inches in diameter) (the "Telecommunications Equipment")
upon the roof of the Building; provided, however, that such Telecommunications
Equipment may only be installed for the purpose of exclusively servicing Tenant
and/or any subtenants or assignees permitted or approved pursuant to the terms
of this Lease. The physical appearance, the size and all other specifications
relating to the Telecommunications Equipment shall be subject to Landlord's
reasonable approval. Tenant shall not change the location of, or alter or
install additional Telecommunications Equipment or paint any of the other
Equipment without Landlord's reasonable prior written consent. Landlord may
require Tenant to install screening around such Telecommunications Equipment, at
Tenant's sole cost and expense, as reasonably designated by Landlord. In the
event Tenant elects to exercise its right to install the Telecommunication
Equipment, then Tenant shall give Landlord prior notice thereof and landlord and
tenant shall execute an amendment to this Lease covering the payment for
installation costs, if any, the Telecommunications Equipment, the installation
and maintenance of such Telecommunications Equipment, Tenant's indemnification
of Landlord with respect thereto, Tenant's obligation to remove such
Telecommunications Equipment upon the expiration or earlier termination of this
Lease, and other related matters.

        23.2 RENT/TAXES. Tenant shall pay, as additional rent, an amount equal
to the "Rooftop Fee," as that term is defined, below, for each month of the Term
in which the Telecommunications Equipment is located on the roof of the
Building. In addition, Tenant shall be responsible for and promptly shall pay
all taxes, assessments, charges, fees and other governmental impositions levied
or assessed on the Telecommunications Equipment or based on the operation
thereof. For purposes of this Lease, the "Rooftop Fee" shall mean (i) $250.00
per month in the event that the Telecommunications Equipment consists of a
satellite dish which is less than or equal to 18 inches in diameter, and (ii;
$500.00 per month in the event that the Telecommunications Equipment exceeds 18
inches in diameter (provided that in no event shall the Telecommunications
Equipment exceed 36 inches in diameter).

        23.3 LOCATION OF TELECOMMUNICATIONS EQUIPMENT. The location of the
Telecommunications Equipment shall be reasonably designated by Landlord.
Landlord may during the Term require Tenant, at Landlord's sole cost and
expense, relocate the Telecommunications Equipment.

                                      -17-
<PAGE>   19

        23.4 OPERATION OF TELECOMMUNICATIONS EQUIPMENT. Operation of the
Telecommunications Equipment shall not interfere in any manner with equipment
systems or utility systems of other tenants of the Project, including without
limitation, telephones, dictation equipment, lighting, heat and air
conditioning, computers, electrical systems and elevators. If operation of the
Telecommunications Equipment causes such interference, as determined by Landlord
in Landlord's reasonable discretion, Tenant immediately shall suspend operation
of the Telecommunications Equipment until Tenant eliminates such interference.

        23.5 MAINTENANCE OF TELECOMMUNICATIONS EQUIPMENT. Tenant shall maintain
the Telecommunications Equipment in good condition and repair, at Tenant's sole
cost and expense. Landlord may from time to time require that Tenant repaint the
Telecommunications Equipment at Tenant's expense, to keep the same in an
attractive condition. In the event that Tenant fails to repair and maintain the
Telecommunications Equipment in accordance with the terms of this Lease,
Landlord may, upon ten (10) business days notice to Tenant (provided that no
such notice shall be required in the case of an emergency) but shall not be
obligated to, make any such repairs or perform any maintenance to the
Telecommunications Equipment and Tenant shall reimburse Landlord within thirty
(30) days following demand for all costs and expenses incurred by Landlord in
connection therewith, plus a reasonable administrative fee.

        23.6 ROOF ACCESS. Tenant may access the roof for repair and maintenance
of the Telecommunications Equipment, only during normal business hours, on
reasonable prior written notice to Landlord. Tenant shall designate in writing
to Landlord all persons whom Tenant authorizes to have access to the roof for
such purposes. Upon such designation and prior identification to Landlords'
building security personnel, such authorized persons shall be granted access to
the roof by Landlord's Building engineer. Tenant shall be responsible for all
reasonable costs and expenses incurred by Landlord in connection with Tenant's
access to the roof pursuant to this Paragraph. Landlord or Landlord's agent may
accompany Tenant during such access.

        24. FORCE MAJEURE. Except with respect to the terms of Paragraph 14 of
this Lease, any prevention, delay or stoppage due to strikes, lockouts, labor
disputes, acts of God, inability to obtain permits, services, labor, or
materials or reasonable substitutes therefor, governmental actions, civil
commotions, fire or other casualty, and other causes beyond the reasonable
control of the party obligated to perform (collectively, the "FORCE MAJEURE"),
except with respect to the obligations imposed upon Tenant with regard to rent
or other charges to be paid by Tenant or Landlord pursuant to this Lease, and
except as to Tenant's obligations under Paragraph 8 of this Lease
notwithstanding anything to the contrary contained in this Lease, shall excuse
the performance of such party for a period equal to any such prevention, delay
or stoppage and, therefore, if this Lease specifies a time period for
performance of an obligation of either party, that time period shall be extended
by the period of any delay in such party's performance caused by a Force
Majeure.

                                      -18-<PAGE>   1

                                                                   EXHIBIT 10.19

AGREEMENT OF LEASE, made as of this 13th of April 1999, between

NEW GREEN 50 W23 REALTY LLC, HAVING AN OFFICE IN CARE OF S.L. GREEN MANAGEMENT
LLC, 420 LEXINGTON AVENUE, NEW YORK, NEW YORK 10036 party of the first part,
hereinafter referred to as OWNER or LANDLORD, and LATITUDE 90 Inc., a California
corporation, having an office at 36 W. 44 St., New York, NY party of the second
part, hereinafter referred to as TENANT,

WITNESSETH: Owner hereby leases to Tenant and Tenant hereby hires from Owner A
PORTION OF THE FOURTH (4TH) FLOOR of the building approximately as described on
the plan attached hereto and made a part hereof as Exhibit A (hereinafter
referred to as the "Premises" or the "Demised Premises") in the building known
as 50 WEST 23rd STREET in the Borough of MANHATTAN, City of New York, for the
term of TEN (10) YEARS (or until such term shall sooner cease and expire as
hereinafter provided) to commence and expire pursuant to the terms and
conditions as set forth at length in ARTICLE 86 hereof, at an annual rental
rate:

in accordance with the terms and conditions of ARTICLE 86 hereof,

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 Owner or such other place as Owner may
designate, without any set off or deduction whatsoever, except that Tenant shall
pay the first (1st) monthly installment(s) 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 Owner pursuant
to the terms of another lease with Owner or with Owner's predecessor in
interest, Owner may at Owner's option and without notice to Tenant add the
amount of such arrears to any monthly installment of rent payable hereunder and
the same shall be payable to Owner 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 the Demised Premises for executive and general
offices relating to Tenant's business provided such use is in accordance with
the certificate of occupancy for the building, if any, and for no other purpose.

                                       1
<PAGE>   2

ALTERATIONS:

3. Tenant shall make no changes in or to the Demised Premises of any nature
without Owner's prior written consent, which shall not shall be unreasonably
withheld, conditioned or delayed. Subject to the prior written consent of Owner,
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 Owner, which consent shall not be unreasonably
withheld, conditioned or delayed. Notwithstanding the foregoing, however,
Landlord's prior negative experience with, concerns regarding the financial
stability of, and any criminal proceedings pending against, any such contractor
or mechanic shall be deemed to be a reasonable basis upon which for Landlord to
refuse to grant its approval. Tenant shall, at its expense, before making any
alterations, additions, installations or improvements 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
Owner. Tenant agrees to carry and will cause Tenant's contractors and
sub-contractors to carry such worker's compensation, general liability, personal
and property damage insurance as Owner may reasonably 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 five days thereafter, at Tenant's expense, by
payment or filing the bond required by law or otherwise. All fixtures and all
paneling, partitions, railings and like installations, installed in the premises
at any time, either by Tenant or by Owner on Tenant's behalf, shall, upon
installation, become the property of Owner and shall remain upon and be
surrendered with the Demised Premises unless Owner, by notice to Tenant no later
than twenty days prior to the date fixed as the termination of this lease,
elects to relinquish Owner's right thereto and to have them removed by Tenant,
in which event the same shall be removed from the Demised Premises by Tenant
prior to the expiration of the lease, at Tenant's expense. Nothing in this
Article shall be construed to give Owner title to or to prevent Tenant's removal
of trade fixtures, moveable office furniture and equipment, but upon removal of
any such from the premises or upon removal of other installations as may be
required by Owner, 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 thereafter shall be deemed abandoned and may, at the
election of Owner, either be retained as Owner's property or removed from the
premises by Owner, at Tenant's expense.

REPAIRS:

4. Owner shall maintain and repair the exterior of and the public portions of
the building. Tenant shall, throughout the term of this lease, take good care of
the Demised Premises including the bathrooms and lavatory facilities (if the
Demised Premises encompass the entire floor of the

                                       2
<PAGE>   3

building) and the windows and window frames and the fixtures and appurtenances
therein and at Tenant's sole cost and expense promptly make all repairs thereto
and to the building, whether structural or non-structural in nature, caused by
or resulting from the carelessness, omission, neglect or improper conduct of
Tenant, Tenant's servants, employees, invitees, or licensees, and whether or not
arising from such Tenant conduct or omission, when required by other provisions
of this lease, including Article 6. 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 Owner at the expense of Tenant, and the
reasonable expenses thereof incurred by Owner 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. Tenant shall give Owner prompt notice of any
defective condition in any plumbing, heating system or electrical lines located
in the Demised Premises and following such notice, Owner 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
Owner by reason of inconvenience, annoyance or injury to business arising from
Owner, Tenant or others making or failing to make any repairs, alterations,
additions or improvements in or to any portion of the building or the Demised
Premises or in and to the fixtures, appurtenances or equipment thereof. It is
specifically agreed that Tenant shall not be entitled to any set off or
reduction of rent by reason of any failure of Owner to comply with the covenants
of this or any other Article of this lease. Tenant agrees that Tenant's sole
remedy at law in such instance will be by way of any action for damages for
breach of contract. The provisions of this Article 4 with respect to the making
of repairs shall not apply in the case of fire or other casualty with regard to
which 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 the

                                       3
<PAGE>   4

Insurance Services Office, or any similar body which shall impose any violation,
order or duty upon Owner or Tenant with respect to the Demised Premises, whether
or not arising out of 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 Demised
Premises or the building (including the use permitted under the lease). Except
as provided in Article 30 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 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 Owner. Tenant shall not keep anything in the Demised
Premises except as now or hereafter permitted by the Fire Department, Board of
Fire Underwriters, Fire Insurance Rating Organization and 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. If by reason of failure to comply with the foregoing 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
Owner as additional rent hereunder, for that portion of all fire insurance
premiums thereafter paid by Owner which shall have been charged because of such
failure by Tenant. In any action or proceeding wherein Owner and Tenant are
parties, a schedule or "make-up" or rate for the building or Demised Premises
issued by a 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. Owner reserves the right to prescribe the weight and position of
all safes, business machines and mechanical equipment. Such installations shall
be placed and maintained by Tenant, at Tenant's expense, in settings sufficient,
in Owner's judgement, to absorb and prevent 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 the 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 or 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 Owner may
request.

                                       4
<PAGE>   5

TENANT'S LIABILITY INSURANCE PROPERTY LOSS, DAMAGE, INDEMNITY:

8. Owner 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 Owner, its agents, servants or employees; Owner
or its agents shall not be liable for any damage caused by other tenants or
persons in, upon or about said building or caused by operations in connection 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 Owner's own acts, Owner 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 rent nor shall the same
release Tenant from its obligations hereunder nor constitute an eviction. Tenant
shall indemnify and save harmless Owner against and from all liabilities,
obligations, damages, penalties, claims, costs and expenses for which Owner
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,
employees, invitees, or licensees, of any covenant or condition of this lease,
or the carelessness, negligence or improper conduct of the Tenant, Tenant's
agent, contractors, employees, invitees or licensees. Tenant's liability under
this lease extends to the acts and omissions of any subtenant and any agent,
contractor, employee, invitee or licensee of any sub-tenant. In case any action
or proceeding is brought against Owner by reason of any such claim, Tenant, upon
written notice from Owner, will, at Tenant's expense, resist or defend such
action or proceeding by counsel approved by Owner 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 Owner 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 Owner, and the rent and other items of additional 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 by
fire or other casualty, then the rent and other items of additional rent as
hereinafter expressly provided 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 Owner (or if sooner reoccupied in part by
Tenant, then rent shall be apportioned as provided in subsection (b) above),
subject to Owner'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 are damaged in whole or in part) if the building
shall be so damaged that Owner shall decide to demolish it or to rebuild it,
then, in any of such events, Owner may elect to terminate this lease by written
notice to Tenant, given within 90 days after such fire or casualty,

                                       5
<PAGE>   6

or 30 days after adjustment of the insurance claim for such fire or casualty,
whichever is sooner, 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 Owner'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 Owner shall serve a termination notice as provided for herein,
Owner 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 Owner's control. After any
such casualty, Tenant shall cooperate with Owner'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 Owner
that the premises are substantially ready for Tenant's occupancy. (e) Nothing
contained herein-above shall relieve Tenant from liability that may exist as a
result of damage from fire or other casualty. Notwithstanding the foregoing,
including Owners obligation to restore under subparagraph (b) above, 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, Owner and Tenant each hereby releases and waives
all right of recovery with respect to subparagraphs (b), (d) and (e) above,
against the other or any one claiming through or under each of them by way of
subrogation or otherwise. The release and waiver herein referred to shall be
deemed to include any loss or damage to the Demised Premises and/or to any
personal property, equipment, trade fixtures, goods and merchandise located
therein. 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. If, and to the extent, that such
waiver can be obtained only by the payment of additional premiums, then the
party benefiting from the waiver shall pay such premium within ten days after
written demand or shall be deemed to have agreed that the party obtaining
insurance coverage shall be free of any further obligation under the provisions
hereof with respect to waiver of subrogation. Tenant acknowledges that Owner
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 Owner 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.

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

                                       6
<PAGE>   7

have no claim for the value of any unexpired term of said lease. Tenant shall
have the right to make an independent claim to the condemning authority for the
value of Tenant's moving expenses and personal property, trade fixtures and
equipment, provided Tenant is entitled pursuant to the terms of the lease to
remove such property, trade fixtures and equipment at the end of the term and
provided further such claim does not reduce Owner's award.

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 Owner in each instance. Transfer of the majority of
the stock of a corporate tenant or the majority partnership or membership
interest of a partnership or limited liability company tenant shall be deemed an
assignment. If this lease be assigned, or if the Demised Premises or any part
thereof be underlet or occupied by anybody other than Tenant, Owner 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 Owner to an
assignment or underletting shall not in any way be construed to relieve Tenant
from obtaining the express consent in writing of Owner to any further assignment
or underletting.

ELECTRIC CURRENT:

12. 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
Owner'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 Owner liable
or responsible to Tenant, for any loss, damages or expenses which Tenant may
sustain. See Article 49.

ACCESS TO PREMISES:

13. Owner or Owner'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 upon prior oral notice to Tenant, to examine the same and to
make such repairs, replacements and improvements as Owner may deem necessary and
reasonably desirable to any portion of the building or which Owner 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 Owner to use, maintain and replace pipes and
conduits in and through the Demised Premises and to erect new pipes and conduits
therein provided, wherever possible, they are within walls or otherwise
concealed.

                                       7
<PAGE>   8

Owner 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. Landlord shall use reasonable efforts to minimize
interference with Tenant's normal business activities within the premises
provided, however, that Tenant acknowledges and agrees that all work shall be
performed on normal business days during normal business hours, unless Tenant
requests and pays Landlord the incremental difference in cost for overtime or
premium labor. Tenant shall not 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 Owner shall have the right to
enter the Demised Premises at reasonable business 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
Demised 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 Demised Premises, Owner or Owner'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, such entry shall not render Owner or its agents liable therefor, nor
in any event shall the obligations of 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, Owner may immediately enter, alter, renovate or
redecorate the Demised Premises without limitation or abatement or rent, or
incurring liability to Tenant for any compensation, and such act shall have no
effect on this lease or Tenant's obligation hereunder.

VAULT, VAULT SPACE, AREA:

14. No vaults, vault space or area, whether or not enclosed or covered, not
within the property line of the building is leased hereunder anything contained
in or indicated on any sketch, blueprint or plan, or anything contained
elsewhere in this lease to the contrary notwithstanding. Owner 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, are 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, Owner 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, if used by Tenant, whether or
not specifically leased hereunder.

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 Owner's work, if any. In
any event, Owner makes no representation as to the condition of the premises and

                                       8
<PAGE>   9

Tenant agrees to accept the same subject to violations, whether or not of
record. If any governmental license or permit shall be required for the proper
and lawful conduct of Tenant's business, Tenant shall be responsible for and
shall procure and maintain such license or permit.

BANKRUPTCY:

16. (a) Anything elsewhere in this lease to the contrary notwithstanding, this
lease may be canceled by Owner by sending of a written notice to Tenant within a
reasonable time after the happening of any one or more of the following events:
(1) the commencement of a ease in bankruptcy or under the laws of any state
naming Tenant as the debtor, or (2) the making by Tenant of an assignment or any
other arrangement for the benefit of creditors under any state statute. Neither
Tenant nor any person claiming through or under Tenant or by reason of any
statute or order of court, shall thereafter be entitled to possession of the
premises demised but shall forthwith quit and surrender the premises. 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 Article 16(a) hereof, Owner 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 re-let by the Owner 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 reletting. Nothing herein
contained shall limit or prejudice the right of the Owner 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 this lease be rejected under
Section 235 of Title 11 of the U.S. Code (Bankruptcy Code);" 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
Owner and Tenant; or if Tenant shall have failed, after five (5) days written
notice, to redeposit with Owner any portion of the security deposited

                                       9
<PAGE>   10
hereunder, which Owner has applied to the payment of any rent and additional
rent due and payable hereunder or failed to move into or take possession of the
premises within thirty (30) days after the commencement of the term of this
lease, of which fact Owner shall be the sole judge; then in any one or more of
such events, upon Owner serving a written fifteen (15) days notice upon Tenant
specifying the nature of said default and upon the expiration of said fifteen
(15) days if Tenant shall have failed to comply with or remedy such default, or
if the said default or omission complained of shall be of a nature that the same
cannot be completely cured or remedied within said fifteen (15) day period, and
if Tenant shall not have diligently commenced during such default within such
fifteen (15) day period, and shall not thereafter with reasonable diligence and
in good faith, proceed to remedy or cure such default, then Owner may serve a
written five (5) days' notice of cancellation of this lease upon Tenant, and
upon the expiration of said five (5) days, this lease and the term thereunder
shall end and expire as fully and completely as if the expiration of such five
(5) 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 Owner, but Tenant shall remain liable as hereinafter
provided.

(2) If the notice provided for in Article 17(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 rest herein
mentioned or any part of either or in making any other payment herein required;
then and in any of such events Owner 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, Owner 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 and additional rent, shall become
due thereupon and be paid up to the time of such re-entry, dispossess and/or
expiration, (b) Owner may re-let the premises or any part or parts thereof,
either in the name of Owner or otherwise, for a term or terms, which may at
Owner'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, (c) Tenant or the
legal representatives of Tenant shall also pay Owner 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
subsequent 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 of Owner 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
Owner may incur in connection with re-letting, such as legal expenses,

                                       10
<PAGE>   11

reasonable 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 Owner to
collect the deficiency for any subsequent month by a similar proceeding. Owner,
in putting the Demised Premises in good order or preparing the same for
re-rental may, at Owner's option, make such alterations, repairs, replacements,
and/or decorations in the Demised Premises as Owner, in Owner's sole judgement,
considers advisable and necessary for the purpose of reletting 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. Owner 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 Owner
hereunder. In the event of a breach or threatened breach by Tenant of any of the
covenants or provisions hereof, Owner 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 Owner 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.

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, after notice (if
required) and upon expiration of any applicable grace period, if any, (except in
an emergency), then, unless otherwise provided elsewhere in this lease, Owner
may immediately or at any time thereafter and without notice perform the
obligation of Tenant thereunder. If Owner, in connection with the foregoing 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, and prevails in any such action or
proceeding, then Tenant will reimburse Owner for such sums so paid or
obligations incurred with interest and costs. The foregoing expenses incurred by
reason of Tenant's default shall be deemed to be additional rent hereunder and
shall be paid by Tenant to Owner within ten (10) days of rendition of any bill
or statement to Tenant therefor. If Tenant's lease term shall have expired at
the time of making of such expenditures or incurring of such obligations, such
sums shall be recoverable by Owner as damages.

BUILDING ALTERATIONS AND MANAGEMENT:

20. Owner shall have the right at any time without the same constituting an
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.
There shall

                                       11
<PAGE>   12

be no allowance to Tenant for diminution of rental value and no liability on
the part of Owner by reason of inconvenience, annoyance or injury to business
arising from Owner or other Tenant making any repairs in the building or any
such alterations, additions and improvements. Furthermore, Tenant shall not have
any claim against Owner by reason of Owner's imposition of any controls of the
manner of access to the building by Tenant's social or business visitors as the
Owner may deem necessary for the security of the building and its occupants.

NO REPRESENTATIONS BY OWNER:

21. Neither Owner nor Owner'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 or the
building 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" on the date possession is tendered 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 apart 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 Owner
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:

22. Upon the expiration or other termination of the term of this lease, Tenant
shall quit and surrender to Owner the Demised Premises, broom clean, in good
order and condition (ordinary wear and damages which Tenant is not required to
repair as provided elsewhere in this lease excepted) and Tenant shall remove all
its property from the Demised Premises. 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.

QUIET ENJOYMENT:

23. Owner 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 promises hereby demised, subject, nevertheless, to the
terms and conditions of this lease including, but not limited to, Article

                                       12
<PAGE>   13

34 hereof and to the ground leases, underlying leases and mortgages hereinbefore
mentioned.

FAILURE TO GIVE POSSESSION:

24. If Owner 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, undertenant or occupant, 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, or if Owner has
not completed any work required to be performed by Owner, or for any other
reason, Owner 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 Owner's inability to obtain possession or complete
any work required) until after Owner shall have given Tenant notice that Owner
is able to deliver possession in the condition required by this lease. 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 possession and/or occupancy shall be deemed to be under all
the terms, covenants, conditions and provisions of this lease, except the
obligation to pay the fixed annual rent set forth in page one of this lease. 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.

        By way of supplement to the foregoing provisions of this Article 24,
Tenant hereby acknowledges that the Demised Premises are currently occupied by
another tenant of the Building, and agrees that in the event that Owner is
unable to deliver to Tenant possession of the Demised Premises on the date
required by the terms of this lease, the term hereof shall nevertheless commence
in accordance with said terms and the provisions of this Article 24 shall apply.

NO WAIVER:

25. The failure of Owner 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 Owner, 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
Owner 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 Owner unless such waiver be in writing signed by
Owner. No payment by Tenant or receipt by Owner 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 Owner may accept such check or payment without
prejudice to Owner's right to recover the balance of such rent or pursue any
other remedy in this lease provided. All checks tendered to Owner as and for the
rent

                                       13
<PAGE>   14

of the Demised Premises shall be deemed payments for the account of Tenant.
Acceptance by Owner of rent from anyone other than Tenant shall not be deemed to
operate as an attornment to Owner by the payer of such rent or as a consent by
Owner to an assignment or subletting by Tenant of the Demised Premises to such
payer, or as a modification of the provisions of this lease. No act or thing
done by Owner or Owner'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 Owner. No employee of Owner
or Owner'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:

26. It is mutually agreed by and between Owner 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
Owner 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 Owner commences any proceeding or action for possession
including a summary proceeding for possession of the premises, Tenant will not
interpose any counterclaim of whatever nature or description in any such
proceeding including a counter-claim under Article 4 except for statutory
mandatory counterclaims.

INABILITY TO PERFORM:

27. 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 Owner 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,
fixtures or other materials if Owner is prevented or delayed from doing so by
reason of strike or labor troubles or any cause whatsoever beyond Owner's sole
control including, but not limited to, government preemption or restrictions 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 which have been
or are affected, either directly or indirectly, by war or other emergency.

BILLS AND NOTICES:

28. Except as otherwise in this lease provided, a bill statement, notice or
communication which Owner 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 of the aforesaid
premises addressed to Tenant,

                                       14
<PAGE>   15

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 Owner must be served by hand delivery or nationally
recognized overnight courier service to Owner at the address first hereinabove
given or at such other address as Owner shall designate by written notice.

WATER CHARGES:

29. If Tenant requires, uses or consumes water for any purpose in addition to
ordinary lavatory purposes (of which fact Tenant constitutes Owner to be the
sole judge) Owner may install a water meter and thereby measure Tenant's water
consumption for all purposes. Tenant shall pay Owner 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 Owner 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 Owner may pay such charges and collect the
same from Tenant, as additional rent. Tenant covenants and agrees to pay, as
additional rent, 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. If the building or
the demised promises or any part thereof is supplied with water through a meter
through which water is also supplied to other premises Tenant shall pay to
Owner, as additional rent, on the first day of each month, 1.47 % of the total
meter charges as Tenant's portion. Independently of and in addition to any of
the remedies reserved to Owner hereinabove or elsewhere in this lease, Owner may
sue for and collect any monies to be paid by Tenant or paid by Owner for any of
the reasons or purposes hereinabove set forth.

SPRINKLERS:

30. 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 of 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 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. Tenant shall pay to Owner as additional rent the sum
of a reasonable charge, on the first day of each

                                       15
<PAGE>   16

month during the term of this lease, as Tenant's portion of the contract price
for sprinkler supervisory service.

ELEVATORS, HEAT, CLEANING:

31. As long as Tenant is not in default under any the covenants of this lease
beyond the applicable grace period provided in this lease for the curing of such
defaults, Owner shall: (a) provide a minimum of one (1) passenger elevator to
the Demised Premises twenty-four (24) hours a day, seven (7) days a week and
provide passenger elevator facilities on business days from 8 a.m. to 6 p.m. and
on Saturdays from 8 a.m. to 1 p.m.; (b) if freight elevator service is provided,
same shall be provided only on regular business days Monday through Friday
inclusive, and on those days only between the hours of 9 a.m. and 12 noon and
between l p.m. and 4 p.m.; (c) furnish heat 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.; (d)
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, including the windows, clean and in order, to the reasonable
satisfaction of Owner, and for that purpose shall employ the person or persons,
or corporation approved by Owner. Owner 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 Owner desirable or necessary to be made, until
said repairs, alterations, replacements or improvements shall have been
completed. If the building of which the Demised Premises are a part supplies
manually operated elevator service, Owner may proceed diligently with
alterations necessary to substitute automatic control elevator service without
in any way affecting the obligations of Tenant hereunder.

SECURITY:

32. A. Tenant has deposited with Owner the sum of $ 51,080.00 as security for
the faithful performance and observance by Tenant of the terms, provisions and
conditions of this lease; it is agreed that in the event Tenant defaults in
respect of any of the terms, provisions and conditions of this lease including,
but not limited to, the payment of rent and additional rent, Owner may use,
apply or retain the whole or any part of the security so deposited to the extent
required for the payment of any rent and additional rent or any other sum as to
which Tenant is in default or for any sum which Owner may expend or may be
required to expend by reason of Tenant's default in respect of any of the terms,
covenants and conditions of this lease, including but not limited to, any
damages or deficiency in the reletting of the premises, whether such damages or
deficiency accrued before or after summary proceedings or other re-entry by
Owner. In the event that Tenant shall fully and faithfully comply with all of
the terms, provisions, covenants and conditions of this lease, the security
shall be returned to Tenant after the date fixed as the end of the lease and
after delivery of entire possession of the Demised Premises to Owner. In the
event of a sale of the land and building or leasing of the building of which the
Demised Premises form a part, Owner shall have the right to transfer the
security to the vendee or lessee and Owner shall thereupon be released by Tenant
from all liability for the return of such security; and Tenant agrees to look to
the new Owner solely for the return of said security, and it is agreed that the

                                       16
<PAGE>   17

provisions hereof shall apply to every transfer or assignment made of the
security to a new Owner. Tenant further covenants that it will not assign or
encumber or attempt to assign or encumber the monies deposited herein as
security and that neither Owner nor its successors or assigns shall be bound by
any such assignment, encumbrance, attempted assignment or attempted encumbrance.

        B. Anything hereinabove to the contrary notwithstanding, Tenant may,
instead of depositing cash with Owner as security hereunder, elect to substitute
therefor and deliver to Owner, as and for a security hereunder, an
unconditional, irrevocable, negotiable commercial Letter of Credit (hereinafter
called the "Credit"), to be held and used under the security provisions of this
Lease, which Credit shall be issued by a bank which is a member of the New York
Clearing House Association, in the amount of $51,080.00, naming Owner (or its
successor as Owner) as beneficiary and authorizing the beneficiary to draw on
the bank in said amount, or any portion thereof, available by the sight draft of
the beneficiary (which may be executed on behalf of the beneficiary by its
agent), without presentation of any other documents, statements or
authorizations. The Credit shall have a term of at least twelve (12) months, and
it shall by its terms be renewed, automatically, each year, by the bank, the
last renewal of which shall be for a term set to expire not earlier than the
date occurring ninety (90) days following the date upon which the term of this
Lease expires, unless the bank gives written notice to the beneficiary, at least
forty-five (45) days prior to the expiration date of the then existing Credit,
that the bank elects that it not so be renewed. The Credit shall be
transferable. All transfer fees shall be payable by Tenant. The bank shall
further agree with drawers, endorsers, and all bona fide holders that drafts
drawn under and in compliance with the terms of the Credit will be duly honored
upon presentation to the bank at its main office located in New York, New York.
The Credit shall be subject to the Uniform Customs and Practice for Documentary
Credits (1993 Revision) International Chamber of Commerce Publication No. 500.

        C. If during the term of this Lease, the Credit and/or the proceeds of
all or part of said Credit become less than the full amount of the security
hereinabove required, then and in such event Tenant shall, upon demand, deposit
with Owner the amount of any security/Credit theretofore used or applied by
Owner pursuant to the terms hereof in order that Owner shall have the full
security on hand at all times during the term of this Lease. If at the
expiration of the term of this Lease, Owner holds all or part of said Credit,
and Tenant is not in default under any of the terms, covenants and conditions of
this Lease, then Owner will turn over said Credit to Tenant or assign it to the
designee of Tenant.

        D. It shall be the obligation of Tenant during the term of this Lease to
deliver to Owner at least thirty (30) days prior to the expiration date of the
then existing Credit, a renewal or extension of said Credit or a substitute
Credit (each fully complying with the foregoing). If for any reason Owner has
not received such renewal or extension or substitute Credit within twenty (20)
days prior to the expiration date of the then existing Credit, then and in such
event Owner shall be free to draw on the Credit and hold and use and apply the
proceeds thereof in accordance with the security deposit provisions of this
Lease. Tenant agrees to reimburse Owner

                                       17
<PAGE>   18

for any attorneys' fees incurred by Owner in connection with reviewing the
Credit and any renewals, extensions or substitutions therefor, ensuring that the
provisions of the Credit and any renewals, extensions or substitutions therefor
comply with the provisions of this Article, drawing down upon the proceeds of
Credit, or any renewals, extensions or substitution therefor, or ensuring that
the security/Credit is maintained as required under this Lease. In the event
that Tenant elects to deposit with Landlord cash security in accordance with the
provisions of this article, then such cash security shall be maintained in an
interest-bearing account and any accrued interest, minus a one (1%) percent per
annum administrative fee to be retained by Landlord, shall be released to Tenant
within thirty (30) days of each anniversary of the Commencement Date of this
Lease, provided that Tenant is not in default of its obligations under this
Lease, and first gives Landlord written notice requesting that such monies be
released to Tenant.

CAPTIONS:

33. 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:

34. The terms "Owner" or "Landlord" as used in this lease means only the owner
of the fee or of the leasehold of the building, 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 owner shall be and hereby is entirely freed and relieved of all
covenants and obligations of Owner 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 lease of the building has assumed and agreed to carry out any and all
covenants and obligations of Owner hereunder. The words "re-enter" and
"re-entry" as used in this lease are not restricted to their technical legal
meaning. The term "rent" includes the annual rental rate whether so expressed or
expressed in monthly installments, and "additional rent." "Additional rent"
means all sums which shall be due to Owner from Tenant under this lease, in
addition to the annual rental rate. The term "business days" as used in this
lease, shall exclude Saturdays, 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.

ADJACENT EXCAVATION-SHORING:

35. 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

                                       18
<PAGE>   19

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 Owner, or
diminution or abatement of rent.

RULES AND REGULATIONS:

36. Tenant and Tenant's servants, employees, agents, visitors, and licensees
shall observe faithfully, and comply strictly with, the Rules and Regulations
annexed hereto and such other and further reasonable Rules and Regulations as
Owner or Owner's agents may from time to time adopt. Notice of any additional
rules or regulations shall be given in such manner as Owner may elect. In case
Tenant disputes the reasonableness of any additional Rule or Regulation
hereafter made or adopted by Owner or Owner'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 Owner within fifteen (15) days after the giving of notice
thereof. Nothing in this lease contained shall be construed to impose upon Owner
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 Owner shall
not be liable to Tenant for violation of the same by any other tenant, or its
servants, employees, agents, visitors or licensees.

37. Intentionally Omitted.

38. Intentionally Omitted

DIRECTORY BOARD LISTING:

39. If, at the request of and as accommodation to Tenant, Owner shall place upon
the directory board in the lobby of the building, one or more names of persons
other than Tenant, such directory board listing shall not be construed as the
consent by Owner to an assignment or subletting by Tenant to such person or
persons.

SUCCESSORS AND ASSIGNS:

40. The covenants, conditions and agreements contained in this lease shall bind
and inure to the benefit of Owner and Tenant and their respective heirs,
distributees, executors, administrators, successors, and except as otherwise
provided in this lease, their assigns. Tenant shall look only to Owner's estate
and interest in the land and building for the satisfaction of Tenant's remedies
for the collection of a judgement (or other judicial process) against Owner in
the event of any default by

                                       19
<PAGE>   20

Owner hereunder, and no other property or assets of such Owner (or any partner,
member, officer or director thereof, disclosed or undisclosed), shall be subject
to levy, execution or other enforcement procedure for the satisfaction of
Tenant's remedies under or with respect to this lease, the relationship of Owner
and Tenant hereunder, or Tenant's use and occupancy of the Demised Premises.

DEFINITIONS AND CAPTIONS:

41. The captions, numbers and definitions herein are inserted only as a matter
of convenience and are not intended to define, limit, construe or describe the
scope or intent of any paragraph, nor in any way affect this Lease.

BROKER:

42. Tenant represents and warrants that it has dealt with no broker except S.L.
Green Leasing, Inc., and Colliers ABR, Inc., (collectively the "Brokers") in
connection with the execution of this Lease or the showing of the Demised
Premises and agrees to hold and save Landlord harmless from and against any and
all liabilities from any claims of any broker (including, without limitation,
the cost of counsel fees in connection with the defense of any such claims)
except the Brokers.

CONDITION OF PREMISES:

43. (a) Tenant has examined and agrees to accept the leased premises in their
existing condition and state of repair and understands that no work is to be
performed by Landlord, except that Landlord's designated, wholly owned affiliate
Emerald City Construction Corp., with reasonable dispatch, subject to delay by
causes beyond its control or by the action or inaction of tenant, shall perform
the following work at Landlord's expense, subject to the provisions of (b),
below:

                        (i) demise the Demised Premises in a building standard
manner utilizing building standard materials in accordance with the plan
attached hereto and made a part hereof as Exhibit A;

                        (ii) deliver the presently existing sprinkler loop
located in the Demised Premises in good working order as of the date that
Landlord delivers possession of the Demised Premises to Tenant;

                        (iii) deliver the presently existing Air Conditioning
Unit serving the Demised Premises in good working order as of the Commencement
Date of the Lease; and

                        (iv) upon Landlord's completion of Landlord's Work,
Landlord shall deliver to Tenant an ACP-5 form.

                                       20
<PAGE>   21

                        The performance by Landlord of the above work
("Landlord's Work") is expressly conditioned upon compliance by Tenant with all
the terms and conditions of this lease, including payment of rent.

        (b) Any changes in or additions to the work and installations mentioned
in paragraph (a) above which shall be consented to by Landlord as provided in
Article 7 hereof, and further changes in or additions to the demised premises
after said work has been completed which shall be so consented to if made by
Landlord, or its agents, at Tenant's request, but shall be paid for by Tenant
promptly when billed at cost plus 1 1/4% for insurance, 10% for overhead and 10%
for general conditions, and in the event of the failure of Tenant so to pay for
said changes or additions, Landlord at its option may consider the cost thereof,
plus the above percentages, as additional rent payable by Tenant and collectible
as such hereunder, as part of the rent for the next ensuing months.

        (c) If Landlord's Work is not substantially completed and is delayed by
acts, omissions or changes made or requested by Lessee, its agents, designers,
architects or any other party acting or apparently acting on Lessee's behalf,
then Tenant shall pay as hereinbefore provided rent and additional rent on a per
diem basis for each day of delay of Landlord's substantial completion caused by
Tenant or any of the aforementioned parties.

        (d) Landlord's Work shall be deemed to be substantially completed
notwithstanding that (i) minor or non-material details of construction,
mechanical adjustment or decoration remain to be performed, provided, that said
"Punch List Items" shall be completed by Landlord within a reasonable time
thereafter or (ii) a portion of Landlord's Work is incomplete because
construction scheduling requires that such work be done after incomplete
finishing or after other work to be done by or on behalf of Tenant is completed.

        (e) Tenant acknowledges and agrees that Landlord may be performing
Landlord's Work or portions thereof simultaneously with Tenant's performance of
its initial alteration work in the Demised Premises, and that Tenant shall use
reasonable efforts to coordinate with Landlord's affiliate, Emerald City
Construction Corp., any such work performed by or on behalf of Tenant in the
Demised Premises.

LANDLORD'S CONTRIBUTION:

44. A. With respect to Tenant's installation of alterations, installations,
decorations and improvements in the Premises to prepare the same for Tenant's
initial occupancy thereof ("Tenant's Alterations"), within thirty (30) days of
the Commencement Date, as hereinafter defined, Tenant shall submit full
architectural and engineering plans and specifications to Landlord for
Landlord's approval ("Tenant's Plans"). All such construction plans and
specifications and all such work shall be effected in accordance with Article 7,
as supplemented, and the other provisions of this Lease. If and so tong as
Tenant is not in default of any of the

                                       21
<PAGE>   22

terms, covenants and conditions of this Lease then, subject to and in accordance
with the provisions of this Article, Landlord will contribute a sum up to but
not exceeding the sum of $127,70100 to be applied to the costs for labor and
materials for the portion of Tenant's Alterations which constitute permanent
leasehold improvements (including paint, carpeting, wall coverings and telephone
wiring) made in the Premises prior to Tenant's initial occupancy thereof
("Landlord's Contribution"). Without limitation, for purposes of this Article,
permanent leasehold improvements shall be deemed not to include, and Landlord's
Contribution shall not be applied to the cost of professional fees, trade
fixtures, equipment, filing fees or interest relating to or in connection with
Tenant's Alterations.

                        (B) Tenant may from time to time during the performance
of Tenant's Alterations submit to Landlord contractor's invoices for work
completed in connection with Tenant's Alterations. The submission must include
the following documents covering the invoiced work and materials.

                1. Contractor's Application For Payment (AIA G7 02 -See Exhibit
B)

                2. Lien Waiver from Contractor and from subcontractors or
suppliers who have supplied materials or performed work in the Premises
(AIAG706A -See Exhibit B)

                3. Receipt for Payment from Contractor and from subcontractors
or suppliers who have supplied materials or performed work in the Premises
(Payment Receipt- See Exhibit B)

                4. Architect's Certificate For Payment (AIAG702-See Exhibit B).

        Provided that Tenant is not in default under any of the terms,
covenants, provisions and conditions of this Lease, Landlord shall make payment
to Tenant (collectively, the "Progress Payments") no more than thirty (30) days
after Tenant has completed all requirements set forth herein for the funding
therefore, ninety (90%) percent of the aggregate amount for which invoices have
been submitted (including any retainage specified in such invoices). In no event
shall Progress Payments exceed ninety (90%) percent of the Landlord's
Contribution in the aggregate.

                        (C) The balance of the Landlord's Contribution shall be
payable within thirty (30) days after the substantial completion of Tenant's
Alterations provided that all of the following conditions have been met:

                (1) Tenant is not then in default under the terms, covenants and
conditions of the Lease;

                (2) Tenant shall have fully completed all construction and
installations substantially in accordance with Tenant's Plans as approved by
Landlord;

                                       22
<PAGE>   23

                (3) Tenant shall have submitted to Landlord a breakdown of
Tenant's final and total construction costs, detailed by contractor and major
subcontractors and suppliers;

                (4) The submission for the balance of Landlord's Contribution is
accompanied by the same documentation required under Section (B) 1, 2, 3, and 4
of this Article for the remaining monies due, except that documents will be
marked "Final". In addition, the submission must include a letter of completion
of Tenant's Alterations from the City of New York Department of Buildings, if
required by applicable law.

                        (D) It is expressly understood and agreed that if the
amount of Landlord's Contribution is less than the cost of Tenant's Alterations,
Tenant shall remain solely responsible for the payment and completion of, and
shall complete at its sole cost and expense, Tenant's Alterations. Any portion
of Landlord's Contribution not credited (or disbursed) shall be retained by
Landlord.

EXCULPATORY CLAUSE:

45. If the Landlord or any successor in interest be an individual, receivership,
joint venture, tenancy in common, co-partnership, unincorporated association, or
other unincorporated aggregate of individuals or a corporation (all of which are
referred to below in this Article 45 individually and collectively, as a
"Landlord Entity"), then, anything elsewhere to the contrary notwithstanding,
Tenant shall look solely to the estate and property of such Landlord Entity in
the land and Building of which the Demised Premises are a part, for the
satisfaction of Tenant's remedies for the collection of ajudgment (or other
judicial process) requiring the payment of money by Landlord Entity in the event
of any default or breach by Landlord Entity with respect to any of the terms,
covenants and conditions of the Lease to be observed and/or performed by
Landlord Entity, and no other property or assets of such Landlord Entity (or the
individual or entity which is the receiver, if the Landlord Entity is a
receivership) shall be subject to levy, execution or other enforcement procedure
for the satisfaction or Tenant's remedies.

46. Intentionally Omitted

INSURANCE:

47. Tenant covenants and agrees that at all times during the term of this Lease,
Tenant shall immediately secure, and thereafter maintain in full force, during
the term hereof, at its own cost and expense, comprehensive general personal
injury and property damage liability insurance against claims for bodily injury,
death and property damage, such insurance to afford minimum protection during
the term of this lease, of not less than $3,000,000 for bodily injury or death
and not less than $1,000,000 for property damage, as well as fire and casualty
insurance, together with extended coverage, in such amounts as required by
Landlord. Such insurance policies shall insure against all costs, expenses
and/or liability arising out of or based upon any and all claims, accidents,
injuries and damages whatsoever normally covered by such insurance caused to any
person or property,

                                       23
<PAGE>   24

wherein such accident, damage or injury occurred on or about the Demised
Premises or the land and building of which the Demised Premises are a part.
Landlord and Landlord's mortgagee shall be named as additional insureds in
Tenant's policies. Such insurance shall be carried by an insurance company or
companies licensed to do business in the State of New York and reasonably
acceptable to Landlord. Upon commencement of the term hereof, and thereafter at
least ten (10) days prior to the expiration of any such policy, Tenant shall
deliver to Landlord the policy or policies of insurance or certificates thereof
and evidence of the payment of the premium therefor. In the event Tenant shall
fail to provide the aforesaid insurance Landlord shall have the right, but not
the obligation, after giving Tenant five (5) days' written notice given in
accordance with Article 28, to procure and pay for any of such insurance and
Tenant shall reimburse Landlord, on the first of the following month, as
additional rent, the cost thereof with interest at the then maximum legal rate
on the amount paid from the date of payment to the date of reimbursement. Each
such policy shall contain an endorsement that such insurance may not be canceled
or amended except upon thirty (30) days' written notice to Landlord. Tenant's
failure to provide and keep in force the aforementioned insurance shall be
regarded as a material default hereunder, entitling Landlord to exercise any or
all of the remedies as herein provided in the event of Tenant's default.

48. Intentionally Omitted

ELECTRICITY:

49. Tenant agrees that Landlord may furnish electricity to Tenant on a
"submetering" basis or on a "rent inclusion basis". Electricity and electric
service, as used herein, shall mean any element affecting the generation,
transmission, and/or distribution or redistribution of electricity, including
but not limited to services which facilitate the distribution of service.
Landlord and Tenant agree that as of the Commencement Date (as hereinafter
defined in Article 86 hereof), Landlord shall supply electricity to the Demised
Premises on a "rent inclusion basis".

                A. Rent Inclusion: If and so long as Landlord provides
electricity to the demised premises on a rent inclusion basis, Tenant agrees
that the fixed annual rent shall be increased by the amount of the Electricity
Rent Inclusion Factor ("ERIF"), as hereinafter defined. Tenant acknowledges and
agrees (i) that the fixed annual rent hereinabove set forth in this lease does
not yet, but is to include an ERIF of $2.75 per rentable square foot to
compensate Landlord for electrical wiring and other installations necessary for,
and for its obtaining and making available to Tenant the redistribution of
electric current as an additional service; and (ii) that said ERIF, which shall
be subject to periodic adjustments as hereinafter provided, has been partially
based upon an estimate of the Tenant's connected electrical load, in whatever
manner delivered to Tenant, which shall be deemed to be the demand (KW), and
hours of use thereof, which shall be deemed to be the energy (KWH), for ordinary
lighting and light office equipment and the operation of the usual small
business machines, including Xerox or other copying machines (such lighting and
equipment are hereinafter called "Ordinary Equipment") during ordinary business
hours ("ordinary business hours") shall be deemed to mean 50 hours per week),
with Landlord providing an average connected load of 6 watts of electricity for
all purposes pen

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<PAGE>   25

rentable square foot. Any installation and use of equipment other than Ordinary
Equipment and/or any connected load and/or energy usage by Tenant in excess of
the foregoing shall result in adjustment of the ERIF as hereinafter provided.
For purposes of this lease the rentable square foot area of the presently
demised premises shall be deemed to be 5,108 square feet.

                If the cost to Landlord of electricity shall have been, or shall
be, increased or decreased subsequent to May 1, 1996 (whether such change occurs
prior to or during the term of this Lease), by change in Landlord's electric
rates or service classifications, or electricity charges, including changes in
market prices, or by an increase, subsequent to the last such electric rate or
service classification change or market price change, in fuel adjustments or
charges of any kind, or by taxes, imposed on Landlord's electricity purchases or
on Landlord's electricity redistribution, or for any other such reason, then the
aforesaid ERIF portion of the fixed annual rent shall be changed in the same
percentage as any such change in cost due to changes in electric rates, service
classifications or market prices, and, also Tenant's payment obligation, for
electricity redistribution, shall change from time to time so as to reflect any
such increase in fuel adjustments or charges, and such taxes. Any such
percentage change in Landlord's cost due to change in Landlord's electric rate
or service classifications or market prices, shall be computed on the basis of
the average consumption of electricity for the building for the twelve full
months immediately prior to the rate change or other such changes in cost,
energy and demand, and any changed methods of or rules on billing Or same,
applied on a consistent basis to the new electric rate or service classification
or market price and to the immediately prior existing electric rate or service
classification or market price. If the average consumption (energy and demand)
for the entire building for said prior (12) months cannot reasonably be applied
and used with respect to changed methods of or rules on billing, then the
percentage increase shall be computed by the use of the average consumption
(energy and demand) for the entire building for the first three (3) months after
such change, projected to a full twelve (12) months, so as to reflect the
different seasons; and that same consumption, so projected, shall be applied to
the rate and/or service classification or market price which existed immediately
prior to the change. The parties agree that a reputable, independent electrical
consultant firm, selected by Landlord, ("Landlord's electrical consultant"),
shall determine the percentage change for the changes in ERIF due to Landlord's
changed costs, and that Landlord's electrical consultant may from time to time
make surveys in the demised premises of the electrical equipment and fixtures
and use of current. (i) If such survey shall reflect a connected electrical load
in the demised premises in excess of 6 watts of electricity for all purposes per
rentable square foot and/or energy usage in excess of ordinary business hours
(each such excess hereinafter called "excess electricity") then the connected
electrical load and/or the hours of use portion(s) of the then existing ERIF
shall be increased by an amount which is equal to a fraction of the then
existing ERIF, the numerator of which is the excess electricity (i.e. excess
connected load and/or excess usage) and the denominator of which is the
connected load and/or the energy usage which was the basis of the then existing
ERIF. Such fractions shall be determined by Landlord's electrical consultant.
The fixed annual rent shall then be appropriately adjusted, effective as of the
date of any such change in connected load and/or usage, as disclosed by said
survey (ii) If such survey shall disclose installation and use of other than
Ordinary Equipment, then effective as of the date of said

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<PAGE>   26

survey, there shall be added to the ERIF portion of fixed annual rent (computed
and fixed as hereinbefore described) an additional amount equal to what would be
paid under the SC-4 Rate I Service Classification in effect on May 1, 1996 (and
not the time-of-day rate schedule) or the comparable rate schedule (and not the
time-of-day rate schedule) of any utility other than Con Ed then providing
electrical service to the building as same shall be in effect on the date of
such survey for such load and usage of electricity, with the connected
electrical load deemed to be the demand (KW) and the hours of use thereof deemed
to be the energy (KWH), as hereinbefore provided, (which addition to the ERIF
shall be increased or decreased by all electricity cost changes of Landlord, as
hereinabove provided, from May 1, 1996 through the date of billing).

                In no event, whether because of surveys, rates or cost changes,
or for any reason, is the originally specified $2.75 per rentable square foot
ERIF portion of the fixed annual rent (plus any net increase thereof, but not
decrease, by virtue of all electricity rate, service classification or market
price changes of Landlord subsequent to May 1, 1996) to be reduced.

                B. Submetering: At any time during the term of this Lease,
Tenant may, at its sole cost and expense install a submeter in the Demised
Premises in order to measure Tenant's use and consumption of electricity
therein, provided that Landlord is given prior written notice of any such
installation, and subject to Landlord's prior written approval of Tenant plans
and specifications and provided any such installation complies with all other
terms, covenants and conditions of this Lease.

                If and so long as Landlord provides redistributed electricity to
the Premises on a submetered basis, Tenant agrees that the charges for such
redistributed electricity shall be computed in the manner hereinafter described,
to wit, a sum equal to Landlord's cost for such electricity ("Landlord's Cost")
plus ten (10%) percent thereof. Landlord's Cost for such redistributed
electricity shall be equal to (i) the consumption of KW demand and KW hours
recorded on Tenant's submeter(s), billed at the service classification under
which Landlord purchases electric current that is appropriate for Tenant's level
of consumption, (ii) Landlord's costs for measuring, calculating and reporting
Tenant's electricity charges, including the fees of an electrical consultant
("Consultant Costs") and (iii) and all taxes paid by Landlord.

                Bills therefor shall be rendered at such times as Landlord may
elect, and the amount, as computed from said meters, shall be deemed to be, and
shall be paid as additional rent. If any tax is imposed upon Landlord's receipt
from the resale of electrical energy to Tenant by any Federal, State or
Municipal authority, Tenant covenants and agrees that, where permitted by law,
Tenant's share of such taxes based upon its usage and demand shall be passed on
to, and shall be included in the bill of, and shall be paid by Tenant to
Landlord. Where more than one meter measures the service of Tenant in the
Building, the KWH and KW recorded by each meter shall be computed and billed
separately in accordance with rates set forth herein.

                C. General Conditions (as to Electricity):

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<PAGE>   27

                In the event that all or part of the meters, or system by which
Landlord measures Tenant's consumption of electricity (the "Submetering
System"), shall malfunction, (a) Landlord, through an independent, electrical
consultant selected by Landlord, shall reasonably estimate the readings that
would have been yielded by said Submetering System as if the malfunction had not
occurred, on the basis of Tenant's prior usage and demand and the lightning and
equipment installed within the Premises and (b) Tenant shall utilize such
estimated readings and the bill rendered based thereon shall be binding and
conclusive on Tenant unless, within thirty (30) days after receipt of such a
bill, Tenant challenges, in writing to Landlord, the accuracy or method of
computation thereof. If, within thirty (30) days of Landlord's receipt of such
a challenge, the parties are unable to agree on the amount of the contested
bill, the controlling determination of same shall be made by an independent
electrical consultant agreed upon by the parties or, upon their inability to
agree, as selected by the American Arbitration Association. The determination of
such electrical consultant shall be final and binding on both Landlord and
Tenant and the expenses of such consultant shall be divided equally between the
parties. Pending such controlling determination, Tenant shall timely pay
additional rent to Landlord in accordance with the contested bill. Tenant shall
be entitled to a prompt refund from Landlord, or shall make prompt additional
payment to Landlord, in the event that the electrical consultant determines that
the amount of a contested bill should have been other than as reflected thereon.

                The determinations by Landlord's electrical consultant shall be
binding and conclusive on Landlord and Tenant from and after the delivery of
copies of such determinations to Landlord and Tenant, unless, within fifteen
(15) days after delivery thereof, Tenant disputes such determination. If Tenant
so disputes the determination, it shall, at its own expense, obtain from a
reputable, independent electrical consultant its own determinations in
accordance with the provisions of this Article. Tenant's consultant and
Landlord's consultant then shall seek to agree. If they cannot agree within
thirty (30) days they shall choose a third reputable electrical consultant,
whose cost shall be shared equally by the parties, to make similar
determinations which shall be controlling. (If they cannot agree on such third
consultant within ten (10) days, then the party's agree that either party may
apply, at its sole cost and expense, to the American Arbitration Association for
the appointment of such consultant, whose appointment shall be binding.)
However, pending such controlling determinations Tenant shall pay to Landlord
the amount of additional rent or ERIF in accordance with the determinations of
Landlord's electrical consultant. If the controlling determinations differ from
Landlord's electrical consultant, then the parties shall promptly make
adjustment for any deficiency owed by Tenant or overage paid by Tenant.

                If all or part of the submetering additional rent or the ERIF
payable in accordance with. Subdivision A or B of this Article becomes
uncollectible or reduced or refunded by virtue of any law, order or regulations,
the parties agree that, at Landlord's option, in lieu of submetering additional
rent or ERIF, and in consideration of Tenant's use of the building's electrical
distribution system and receipt of redistributed electricity and payment by
Landlord of consultant's fees and other redistribution costs, the fixed annual
rental rate(s) to be paid under

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<PAGE>   28

this lease shall be increased by an "alternative charge" which shall be a sum
equal to $2.75 per year per rentable square foot of the demised premises,
changed in the same percentage as any increase in the cost to Landlord for
electricity for the entire building subsequent to May 1, 1996, because of
electric rate, service classification or market price changes, such percentage
change to be computed as in Subdivision A provided.

                Landlord shall not be liable to Tenant for any loss or damage or
expense which Tenant may sustain or incur if either the quantity or character of
electric service is changed or is no longer available or suitable for Tenant's
requirements. Tenant covenants and agrees that at all times its use of electric
current shall never exceed the capacity of existing feeders to the building or
wiring installation. Tenant agrees not to connect any additional electrical
equipment to the building electric distribution system, other than lamps,
typewriters and other small office machines which consume comparable amounts of
electricity, without Landlord's prior written consent, which consent shall not
be unreasonably withheld. Any riser or risers to supply Tenant's electrical
requirements, upon written request of Tenant, will be installed by Landlord, at
the sole cost and expense of Tenant, if, in Landlord's sole judgment, the same
are necessary and will not cause permanent damage or injury to the building or
demised premises or cause or create a dangerous or hazardous condition or entail
excessive or unreasonable alterations, repairs or expense or interfere with or
disturb other tenants or occupants. In addition to the installation of such
riser or risers, Landlord will also at the sole cost and expense of Tenant,
install all other equipment proper and necessary in connection therewith subject
to the aforesaid terms and conditions. The parties acknowledge that they
understand that it is anticipated that electric rates, charges, etc., may be
changed by virtue of time-of-day rates or changes in other methods of billing,
and/or electricity purchases and the redistribution thereof, and fluctuation in
the market price of electricity, and that the references in the foregoing
paragraphs to changes in methods of or rules on billing are intended to include
any such changes. Anything hereinabove to the contrary notwithstanding, in no
event is the submetering additional rent or ERIF, or any "alternative charge",
to be less than an amount equal to the total of Landlord's payments to public
utilities and/or other providers for the electricity consumed by Tenant (and any
taxes thereon or o n redistribution of same) plus 5% thereof for transmission
line loss, plus 15% thereof for other redistribution costs. The Landlord
reserves the right, at any time upon thirty (30) days written upon written
notice, to change its furnishing of electricity to Tenant from a rent inclusion
basis to a submetering basis, or vice versa, or to change to the distribution of
less than all the components of the existing service to Tenant. The Landlord
reserves the right to terminate the furnishing of electricity on a rent
inclusion, submetering, or any other basis at any time, upon thirty (30) days
written notice to the Tenant, in which event. the Tenant may make application
directly to the public utility and/or other providers for the Tenant's entire
separate supply of electric current and Landlord shall permit As wires and
conduits, to the extent available and safely capable, to be used for such
purpose, but only to the extent of Tenant's then authorized load. Any meters,
risers, or other equipment or connections necessary to furnish electricity on a
submetering basis or to enable Tenant to obtain electric current directly from
such utility and/or other providers shall be installed at Tenant's sole cost-and
expense. Only rigid conduit or electricity metal tubing (EMT) will be allowed.
The Landlord, upon the expiration of the aforesaid thirty (30) days

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<PAGE>   29

written notice to the Tenant may discontinue furnishing the electric current but
this lease shall otherwise remain in full force and effect. If Tenant was
provided electricity o n a rent inclusion basis when it was so discontinued,
then commencing when Tenant receives such direct service and as long as Tenant
shall continue to receive such service, the fixed annual rent payable under this
lease shall be reduced by the amount of the ERIF which was payable immediately
prior to such discontinuance of electricity on a rent inclusion basis.

RENT ESCALATION - COST INCREASE:

50. (A) For purposes of the formula and other provisions set forth in this
Article and elsewhere in this Lease:

        (1) "Rate" shall mean the minimum regular hourly wage rate, including
adjustments of every kind and nature (excluding all sums paid for Fringe
Benefits, as hereinafter defined, and adjustments provided for in subdivision
(6) herein below) prescribed for Porters (as hereinafter defined) for Class A
office buildings (or any successor category), pursuant to the present and any
successor 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 such buildings ("Agreement"), provided, however, that,
(a) if, at any time during the Term, regular employment of Porters occurs on
days or during hours when the overtime or other premium pay rates are in effect
pursuant to the Agreement," Rate" shall mean the average hourly wage rate,
including adjustments of every kind and nature (excluding Fringe Benefits and
adjustments provided for in subdivision (6) herein below) for the hours in a
calendar week during which Porters are regularly employed (e.g., if pursuant to
the Agreement, the regular weekly employment of Porters is for forty hours, at a
regular hourly wage rate, excluding Fringe Benefits, of $12.00 for the first
thirty hours and an overtime hourly wage rate, excluding Fringe Benefits, of
$15.00 for the remaining ten hours, the average hourly wage rate, excluding
Fringe Benefits, for the applicable period shall, before adjustment pursuant to
the provisions of subdivision (6) of this Paragraph (A), be the weekly wage rate
of $510.00 divided by the number of regular hours of employment, to wit, forty,
or $12.75), and that, (b) if, at any time during the Term, no Agreement exists,
"Rate" shall mean the average minimum regular hourly wage rate, including
adjustments of every kind and nature (excluding Fringe Benefits and adjustments
provided for in subdivision (6) herein below) actually payable to Porters at the
rate for Porters employed at Class A office buildings as such buildings are
presently described in the Agreement, except that at no time shall We amount
payable be less than the amount being paid by the Tenant pursuant to this
paragraph at the time the rate ceases to exist.

        (2) "Base Rate" shall mean the Rate in effect during the calendar year
1999.

        (3) "Multiplication Factor" shall mean 5,108.

        (4) "Porters" shall mean those employees who have been employed for ten
(10) years or more and who are engaged in the general maintenance and operation
of office buildings, classified as

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<PAGE>   30

"Others" in the current Agreement or, failing such classification in any
subsequent Agreement, the most nearly comparable classification in such
Agreement.

        (5) "Fringe Benefits" shall mean all sums directly or indirectly paid
for so-called "fringe benefits", including, without limitation, the costs of (a)
pensions, welfare funds, training funds and dues; (b) social security,
vacations, sick pay, holidays, jury duty, bonuses, medical checkup, lunch time,
relief time and other paid time off, and (c) unemployment, workmen's
compensation, disability benefits, health, life, accident and other types of
insurance, and shall be calculated as provided in subdivision (6) herein below.

        (6) In determining the Rate and the Base Rate on each applicable
occasion pursuant to this Lease, the Base Rate and the Rate, as specified in the
Agreement, shall be adjusted on the basis of the number of hours Porters
actually are to work, pursuant to the Agreement, during the applicable calendar
year (e.g., if the Agreement is predicated on a 2,080 hour work year (40 hours x
52 weeks) and Porters are paid for the following time which they actually are
not to work (Vacation - 120 hours, Holidays-88 hours, Birthday-8 hours, Medical
Checkup-16 hours, Sick Days-80 hours, Disaster Day-8 hours and Relief Time-147
hours), totaling 467 hours, then the Base Rate and the Rate (and the hourly cost
of Fringe Benefits, as well) shall be calculated on the basis of Porters
actually working 1,613 hours (2,080 hours less 467 hours).

50. (B) If, in any year during the Term, the Rate exceeds the Base Rate, Tenant
shall pay Landlord an amount ("Expense Escalation") equal to the product of the
Multiplication Factor multiplied by 100% of me amount by which the Rate exceeds
the Base Rate, appropriately adjusted for any such period which is only
partially within the Term. The Expense Escalation shall be payable in equal
monthly installments, commencing with the first installment of Fixed Rent due on
or after the effective date of any increase in the Rate and continuing
thereafter until the effective date of any subsequent increase, whereupon such
installments shall be appropriately adjusted. Landlord shall furnish Tenant with
a statement itemizing Tenant's liability pursuant to this subdivision when ever
such liability arises or changes. Except as limited by Articles 9 and 10,
Tenant's obligation to make such payments shall survive the Expiration Date or
any sooner termination of this Lease. Notwithstanding the foregoing, if, by
reason of any law or any rule, order, regulation or requirement of any
governmental or quasi-governmental authority having or asserting jurisdiction
(collectively, "Law"), an increase in the Rate is reduced or does not take
effect, or increases in the Rate are limited or prohibited, then, for the period
covered by the Law ("Law Period"), the applicable increase ("Increase") in the
Rate for purposes of this Article shall be the increase in the Rate ("Prior
Increase") which most immediately preceded the effective date of the Law. The
Increase shall take effect on the date following the expiration of the period
for the Prior Increase and an equivalent Increase shall take effect on each
anniversary of such effective date during the Law Period.

50. (C) Each notice given by Landlord pursuant to subdivision (B) shall be
binding upon Tenant unless, within thirty (30) days after is receipt of such
notice, Tenant notifies Landlord of its disagreement therewith, specifying the
portion thereof with which Tenant disagrees. Pending

                                       30
<PAGE>   31

resolution of such dispute, Tenant shall, without prejudice to its rights, pay
all amounts determined by Landlord to be due, subject to prompt refund by
Landlord (without interest) upon any contrary determination.

50. (D) Landlord's failure to timely bill all or any portion of the Expense
Escalation (or any increase therein) for any period or periods during the Term
(whether because of failure to timely consummate an Agreement or because of
error or oversight of Landlord or its managing agent or for any other reason)
shall not constitute a waiver of Landlord's right to ultimately collect such
amount, nor a waiver of Landlord's right to bill Tenant at any subsequent time
retroactively for the entire amount so unbilled, which unbilled amount shall be
payable within thirty (30) days after being so billed.

REAL ESTATE TAX ESCALATION:

51. Tenant shall pay to Landlord, as additional rent, tax escalation in
accordance with this Article.

(A) As used in this Article, the following definitions shall apply:

        (1) The term "Base Tax Year" as hereinafter set forth for the
determination of real estate tax escalation shall mean the New York City real
estate tax year commencing July 1, 1999 and ending June 30,2000.

        (2) The term "Percentage" shall be deemed to mean 1.63 percent.

        (3) The term "the Building Project" shall mean all of the land together
with the improvements thereon known as 50 West 23rd Street, New York, New York.

        (4) The term "Comparative Year" shall mean the respective twelve (12)
months following the Base Tax Year, and each subsequent period of twelve (12)
months.

        (5) The term "Real Estate Taxes" shall mean the total of all real
property taxes and special or other assessments and/or vault charges levied,
assessed or imposed at any time by any governmental authority or against the
Building Project, and also any tax or assessment levied, assessed or imposed at
any time by any governmental authority in connection with the receipt of income
or rents from said Building Project to the extent that same shall be in lieu of
all or a portion of any of me aforesaid taxes or assessments, or additions or
increases thereof, upon or against said Building Project and any Business
Improvement District Charges. If, due to a future change in the method of
taxation or in the taxing authority, or for any other reason, a franchise,
income, transit, profit or other tax or governmental imposition, however
designated, shall be levied against Landlord in substitution in whole or in part
for the Real Estate Taxes, or in lieu of additions to or increases of said Real
Estate Taxes, then such franchise, income, transit, profit or other tax or
governmental imposition shall be deemed to be included within the definition of
"Real Estate Taxes" for the purposes hereof. As to special assessments which are
payable over a period of time extending beyond the term of this Lease, only a
pro rata portion thereof, covering the portion of the terms of this Lease
unexpired at the time

                                       31
<PAGE>   32

of the imposition of such assessment, shall be included in "Real Estate Taxes".
If, by law, any assessment may be paid in installments, then, for the purposes
hereof (a) such assessment shall be deemed to have been payable in the maximum
number of installments permitted bylaw and (b) there shall be included in Real
Estate Taxes, for each Comparative Year in which such installments may be paid,
the installments of such assessments so becoming payable during the Comparative
Year, together with interest payable during such Comparative Year.

51. (B) In the event that the Real Estate Taxes payable for any Comparative Year
shall exceed the amount of such Real Estate Taxes payable during the Base Tax
Year, Tenant shall pay to Landlord, as additional rent for such Comparative
Year, an amount equal to the Percentage of the excess. By or after the start of
the Comparative Year following the Base Tax Year, and by or after the start of
each Comparative Year thereafter, Landlord shall furnish to Tenant a statement
of the Real Estate Taxes payable during the Base Tax Year and each Comparative
Year, which statement shall reflect the amount to be paid by the Tenant pursuant
to this Article 51. Tenant's obligation to pay the amount herein provided for
shall survive the expiration or earlier termination of this Lease.

51. (C) The amount due pursuant to the calculation provided for in sub-paragraph
B above shall be due and payable within ten (10) days after Landlord shall have
delivered to Tenant a statement setting forth the amount equal to the Percentage
of the excess and the basis therefor. Bills for such Taxes shall be sufficient
evidence of amount, for the purpose of calculating the Percentage. In the event
Tenant fails to pay its proportionate share when due, Landlord shall be
entitled, with respect thereto, to any and all remedies to which Landlord may be
entitled under this Lease for default in the payment of rent. The failure of
Landlord to bill Tenant for the additional rent due in any fiscal year shall not
prejudice the right of Landlord to subsequently bill Tenant for such fiscal year
or any subsequent fiscal year.

51. (D) (1) Should the Real Estate Taxes payable during the Base Tax Year be
reduced by final determination of legal proceedings, settlement or otherwise,
then, the Real Estate Taxes payable during the Base Tax Year shall be
correspondingly revised, the additional rent theretofore paid or payable
hereunder for all Comparative Years shall be recomputed on the basis of such
reduction, and Tenant shall pay to Landlord as additional rent, within ten (10)
days after being billed therefor, any deficiency between the amount of such
additional rent as theretofore computed and the amount thereof due as the result
of such recomputations. Should the Real Estate Taxes payable during the Base Tax
Year be increased by such final determination of legal proceedings, settlement
or otherwise, then appropriate recomputation and adjustment also shall be made
and the amount due by the Landlord to the Tenant shall be paid within ten (10)
days after the recomputation. Should the Real Estate Taxes paid during any
Comparative Year be increased or decreased by a final determination of legal
proceedings, settlement or otherwise, then an appropriate recomputation and
adjustment shall be made between the Landlord and Tenant and any amount owed by
the Tenant shall be paid within ten (10) days after the Tenant is billed
therefor and be deemed additional rent, and any amount owed by the Landlord to
the Tenant shall be paid within ten (10) days of the recomputation.

                                       32
<PAGE>   33

        (2) If after Tenant shall have made a payment of additional rent under
this subdivision (D)(1), Owner shall receive a refund of any portion of the real
estate taxes payable for any comparative year after the base tax year on which
such payment of additional rent shall have been based, as a result of a
reduction of such real estate taxes by final determination of legal proceedings,
settlement or otherwise, Owner shall within ten (10) days after receiving the
refund pay to Tenant the Percentage of the refund.

51. (E) Upon the date of any expiration or termination of this Lease (except
termination because of Tenant's default), whether the same be the date herein
above set forth for the expiration of the term or any prior or subsequent date,
a proportionate share of said additional rent for the Comparative Year during
which such expiration or termination occurs shall immediately become due and
payable by Tenant to Landlord, if not theretofore already billed and paid. The
said proportionate share shall be based upon the length of time that this Lease
shall have been in existence during such Comparative Year. Landlord shall, as
soon as reasonably practicable, compute the additional rent due from Tenant, as
aforesaid, which computations shall either be based on that Comparative Year's
actual figures or be an estimate based upon the most recent statements prepared
by Landlord and furnished to Tenant. If an estimate is used, then Landlord shall
cause statements to be prepared on the basis of the Comparative Year's actual
figures as soon as they are available, and within ten (10) days after such
statement or statements are prepared by Landlord and furnished to Tenant,
Landlord and Tenant shall make appropriate adjustments of any estimated payments
theretofore made, which shall survive any expiration or termination of this
Lease.

51. (F) Any delay or failure of Landlord in billing for any additional rent
shall not constitute a waiver of or in any way impair the continuing obligation
of Tenant to pay such additional rent.

51. (G) Notwithstanding any contrary or inconsistent provisions of this Article
51:

Tenant shall pay to Landlord on the first day of each calendar month during the
term of this Lease an amount (the "Estimated Monthly Tax Payment") equal to
1/12th of Landlord's estimate (in Landlord's sole discretion) of the payment
which will be due to Landlord from Tenant pursuant to Article 51 (B) for the
next Comparative Year. Landlord shall provide such estimate to Tenant together
with the monthly billing of Estimated Monthly Tax Payment during each calendar
year. For example: if Landlord estimates that the amount payable by Tenant
pursuant to Article 51(B) for the Comparative Year January 1,1994 through
December 31,1994 will be $144 then Landlord shall provide Tenant such estimate
together with a billing for Estimated Monthly Tax Payment for each month of the
term during the calendar year 1993 for the sum of $12; and the Estimated Monthly
Tax Payments for each calendar month of 1993 shall each be $12 until such
estimate is revised. Notwithstanding the foregoing, after the sum actually
payable for the Comparative Year in question is determined, the Estimated
Monthly Tax Payments made or to be made for all calendar months included within
such Comparative Year shall be equitably adjusted, and any balance due Landlord
or Tenant, as the case may be, shall be paid forthwith.

51. (H) In addition to all fixed annual rent and additional rent payable
pursuant to the terms of this

                                       33
<PAGE>   34

Lease and this Article, Tenant shall pay to Owner, as additional rent, within
ten (10) days after Owner shall have delivered to Tenant a statement therefor,
the Percentage of all expenses incurred by Owner in reviewing or contesting the
validity or amount of any Real Estate Taxes, including without limitation, the
fees and disbursements of attorneys, third party consultants, experts and
others.

52. Intentionally omitted.

LATE PAYMENT CLAUSE:

53. It is agreed that the rental under this Lease is due and payable in equal
monthly installments in advance on the first day of each month during the entire
lease term. In the event that any monthly installment of rent, or any other
payment required to be made by the Tenant under this Lease shall be overdue for
a period (the "Late Period") of ten (10) days, a late charge of four (4) cents
for each dollar so overdue may be charged by the Landlord for each month, or
fraction of each month, from its due date until paid, for the purpose of
defraying the expenses incurred in handling delinquent payments. Although no
late payment penalties shall accrue until the end of the applicable Late Period,
nothing contained in this Article 53 or elsewhere in this Lease shall prevent
Landlord from commencing legal proceedings against Tenant for the non-payment of
rent or additional rent if same is not paid upon the first day of each month
during the entire lease term.

ATTORNMENT:

54. (A) Tenant agrees that if by reason of default on the part of Landlord
herein, under any ground or underlying lease or any mortgage affecting
Landlord's interest, a ground or underlying lessor or a mortgagee shall enter
into and become possessed of the real property of which the Demised Premises
form a part, or any part or pans of such real property, either through
possession or foreclosure action or proceedings, or through the issuance and
delivery of a new lease of the Premises covered by the ground or underlying
lease to a leasehold mortgagee, then, if this Lease is in full force and effect
at such time, Tenant shall attorn to such lessor or such mortgagee as its
Landlord; and in such event, such lessor or mortgagee shall not be liable to
Tenant for any defaults theretofore committed by Landlord and no such default
shall give rise to any rights of offset or deduction against the rents payable
under this Lease.

54. (B) The provisions for attornment hereinbefore set forth shall not require
the execution of any further instrument. However, if such lessor or mortgagee to
which Tenant agrees to attorn, as aforesaid, reasonably requests a further
instrument expressing such attornment, Tenant agrees to execute the same
promptly and if Tenant fails so to do, Tenant hereby appoints Landlord Tenant's
attorney-in-fact to execute any such instrument for and on behalf of Tenant.

ENTIRE AGREEMENT:

        55. (A) This Lease contains the entire agreement between the parties,
and any agreement hereafter

                                       34
<PAGE>   35

made shall not operate to change, modify, or discharge this Lease in whole or in
part unless such agreement is in writing and signed by the party sought to be
charged therewith.

55. (B) Tenant expressly acknowledges and agrees that Landlord and its agents
have not made and are 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 or in any other written agreement which may be made between the parties
concurrently with the execution and delivery of this Lease and shall expressly
refer to this Lease.

55. (C) This Lease shall be governed in all respects by the laws of the State of
New York.

SAVING PROVISION:

56. If any provision of this Lease, or Is application to any situation shall be
invalid or unenforceable to any extent, the remainder of this Lease, or the
application thereof to situations other than that as to which it is invalid or
unenforceable, shall be not affected thereby, and every other provision of this
Lease shall be valid and enforceable to the fullest extent permitted by Law.

LEASE NOT BINDING UNLESS EXECUTED:

57. Submission by Landlord of the within Lease for execution by Tenant, shall
confer no rights nor impose any obligations on either party unless and until
both Landlord and Tenant shall have executed this Lease and duplicate originals
thereof shall have been delivered to the respective parties.

ASSIGNMENT AND SUBLETTING, MORTGAGING:

58. (A) Tenant, for itself, its heirs, distributees, executors, administrators,
legal representatives, successors and assigns, expressly covenants that it shall
not assign, or mortgage or otherwise encumber, all or any part of As interest in
this Lease, sublet the Demised Premises, in whole or in part, 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.

58. (B) If Tenant shall desire to assign its interest in this Lease or to sublet
the Demised Premises, the Tenant shall submit to Landlord a written request for
Landlord's consent to such assignment or subletting, which request shall be
accompanied by the following information: (i) the name and address of the
proposed assignee or subtenant; (ii) the terms and conditions of the proposed
assignment or subletting; (iii) the nature and character of the business of the
proposed assignee or subtenant and its proposed use of the Demised Premises; and
(iv) current financial information and any other information Landlord may
reasonably request with respect to the proposed assignee or subtenant. Landlord,
by notice given to Tenant within thirty (30) days after receipt of Tenant's
request for consent, may terminate this Lease on a date to be specified in said
notice. (the

                                       35
<PAGE>   36

"Termination Date"), which date shall be not earlier than one (1) day before the
effective date of the proposed assignment or subletting nor later than sixty-one
(61) days after said effective date. Tenant shall vacate and surrender the
Demised Premises o n or before the Termination Date and the term of this Lease
shall end on the Termination Date as if it were the Expiration Date.

58. (C) If Landlord shall not exercise its option to terminate this Lease
pursuant to subsection B above, Landlord shall not unreasonably withhold its
consent to the proposed assignment or subletting for the use permitted in this
Lease, provided that:

        (1) The Demised Premises shall not, without Landlord's prior consent,
have been listed or otherwise publicly advertised for an assignment or
subletting at a rental rate lower than the then prevailing rental rate for other
space in the building;

        (2) Tenant shall employ Landlord's management agent for the Building or
such broker as shall be approved by Landlord for not less than the first ninety
(90) days that Tenant seeks to sublet or assign the Demised Premises, as
Tenant's exclusive renting agent for the subletting of the Demised Premises
and/or the assignment of this Lease, having the sole and exclusive right to
lease the Demised Premises;

        (3) Tenant shall not then be in default hereunder beyond the expiration
of any applicable grace period;

        (4) the proposed assignee or subtenant shall have a financial standing,
at the time such assignment or subletting is proposed and upon the effective
date thereof, reasonably sufficient to satisfy Tenant's outstanding obligations
due under this Lease and be of a character, be engaged in a business, and
propose to use the Demised Premises, in a manner in keeping with the standards
of the Building;

        (5) the proposed assignee or subtenant shall not then be a tenant,
subtenant or assignee of any space in the Building, nor shall the proposed
assignee or subtenant be a person or entity with whom Landlord is then
negotiating to lease space in the Building;

        (6) the character of the business to be conducted in the Demised
Premises by the proposed assignee or subtenant shall not be likely to
substantially increase operating expenses or Building energy costs;

        (7) in case of subletting, the subtenant shall be expressly subject to
all of the obligations of Tenant under this Lease and the further condition and
restriction that such sublease shall not be assigned, encumbered or otherwise
transferred or the Demised Premises further sublet by the subtenant in whole or
in part, or any part thereof suffered or permitted by the subtenant to be used
or occupied by others, without the prior written consent of Landlord in each
instance;

        (8) no subletting shall end later than one (1) day before the Expiration
Date nor shall any

                                       36
<PAGE>   37

subletting be for a term of less than two (2) years unless it commences less
than two (2) years before the Expiration Date;

        (9) no subletting shall be for less than the entire Demised Premises;

        (10) Tenant shall reimburse Landlord on demand for any costs, including
reasonable attorneys' fees and disbursements, that may be incurred by Landlord
in connection with said assignment or sublease; and

        (11) Tenant and its subtenant shall execute and deliver an agreement in
form and substance satisfactory to Landlord in its sole discretion that provides
that upon default by Tenant in the payment of any rent or additional rent
pursuant to this Lease, Subtenant shall, at Landlord's option, pay any rent and
additional rent due under the sublease to Landlord, who shall offset same
against Tenant's obligation herein, and any amount so paid shall be offset by
Tenant as sublandlord against the obligations of the subtenant to Tenant.

        (12) Notwithstanding any contrary or inconsistent provisions of this
Lease, in no event shall any sublessee or assignee of all or any portion of the
Demised Premises pursuant to this Lease utilize any portion of the Demised
Premises for any (a) telemarketing operation, (b) use by any government agency,
bureau or department, (c) guard service, (d) messenger or delivery service, (e)
immigration service, (f) school, (g) clinic, (h) medical use of any kind, (i)
hospital, (j) social service organization or (k) personnel or employment agency.

If there is a dispute between Landlord and Tenant as to the reasonableness of
Landlord's refusal to consent to any subletting or assignment, such dispute
shall be determined by arbitration in the City of New York in accordance with
the prevailing rules of the American Arbitration Association. The arbitrators
shall be bound by the provisions of this Lease and shall not add to, subtract
from, or otherwise modify such provisions. Notwithstanding any contrary
provisions hereof, Tenant hereby waives any claim against Landlord for money
damages which it may have based upon any assertion that Landlord has
unreasonably withheld or unreasonably delayed any consent to any assignment or a
subletting pursuant to this Article. Tenant agrees that is sole remedy shall be
an action or proceeding to enforce such provision or for specific performance.

58. (D) Every subletting hereunder is subject to the express condition, and by
accepting a sublease hereunder each subtenant shall be conclusively deemed to
have agreed, that if this Lease should be terminated prior to the Expiration
Date or if Landlord should succeed to any portion of Tenant's estate in the
Demised Premises, then at Landlord's election such subtenant shall either
surrender that portion of the Demised Premises to Landlord within sixty (60)
days of Landlord's request therefor, or shall attorn to and recognize Landlord
as such subtenant's landlord under such sublease, and such subtenant shall
promptly execute and deliver any instrument Landlord may reasonably request to
evidence such attornment.

58. (E) Tenant shall deliver to Landlord a copy of each sublease or assignment
made hereunder

                                       37
<PAGE>   38

within ten (10) days after the date of its execution. Tenant shall remain fully
liable for the performance of all of Tenant's obligations hereunder
notwithstanding any subletting or assignment provided for herein and, without
limiting the generality of the foregoing, shall remain fully responsible and
liable to Landlord for all acts and omissions of any subtenant, assignee or
anyone claiming by, through or under any subtenant or assignee which shall be in
violation of any of the obligations of this Lease, and any such violation shall
be deemed to be a violation by Tenant. Notwithstanding any assignment and
assumption by the assignee of the obligations of Tenant hereunder, Tenant herein
named, and each immediate or remote successor in interest of Tenant herein
named, shall remain liable jointly and severally (as a primary obligor) with its
assignee and all subsequent assignees for the performance of Tenant's
obligations hereunder, and shall remain fully and directly responsible and
liable to Landlord for all acts and omissions on the part of any assignee
subsequent to it in violation of any of the obligations of this Lease.

58. (F) Notwithstanding anything to the contrary contained in this Lease, no
assignment of Tenant's interest in this Lease shall be binding upon Landlord
unless the assignee, and, if the assignee is a partnership, the individual
partners thereof, shall execute and deliver to Landlord an agreement, in
recordable form, whereby such assignee agrees unconditionally to be personally
bound by and to perform all of the obligations of Tenant hereunder and further
expressly agrees that notwithstanding such assignment the provisions of this
Article shall continue to be binding upon such assignee with respect to all
future assignments and transfers.

58. (G) If Landlord shall have consented to any assignment or subletting, or if
there is any transfer of this Lease by operation of law or otherwise, and if
Tenant shall receive any consideration from its assignee or subtenant for or in
connection with the assignment of Tenant's interest in this Lease or the
subletting of the Demised Premises, as the case may be (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, in the case
of a sale thereof, the then net unamortized or undepreciated cost thereof
determined on the basis of Tenant's federal income tax returns) or, if Tenant
shall sublet the Demised Premises at a rental rate (including additional rent)
which shall exceed the Fixed Annual Rent and Additional Rent hereunder, Tenant
shall pay to Landlord, as additional rent the full amount of such excess.

58. (H) Any transfer, by operation of law or otherwise, of the interest of
Tenant in this Lease (in whole or in part) or of a controlling interest in the
voting and management of Tenant (whether stock, partnership interest, or
otherwise) shall be deemed an assignment of this Lease within the meaning of
this Article. If there has been a previous transfer of less than a controlling
interest in Tenant, any other transfer of an interest in Tenant which, when
combined with previous transfer(s) constitutes a controlling interest shall be
deemed an assignment of the interest of Tenant in this Lease within the meaning
of this Article. Anything continued herein to the contrary notwithstanding, the
provisions of section J shall not apply to the sale of shares by persons other
than those deemed "insiders" within the meaning of the Securities Exchange Act
of 1934, as amended, where such sale is effected through any recognized exchange
or through the "over-the counter market", unless the same be related to, result
in or be the result of any merger, consolidation, tender offer, takeover or

                                       38
<PAGE>   39

other activity involving the acquisition of control of Tenant by another
unrelated corporation or legal entity. All references to "tenant" in this
section H shall also be deemed to refer to any immediate or remote subtenant or
assignee of Tenant.

58. (1) Anything hereinabove contained to the contrary notwithstanding, Owner's
leaseback/termination option as set forth in the provisions of Section B hereof
shall not apply to, and Owner will not unreasonably withhold or delay its
consent to an assignment of this Lease, or sublease of all or part of the
demised premises, to the parent of Tenant or to a wholly-owned subsidiary of
Tenant or of said parent of Tenant, provided the net worth of transferor or
sublessor, after such transaction, is equal to or greater than its net worth
immediately prior to such transaction, and provided also that any such
transaction complies with the other provisions of this Article.

58.(J). Anything hereinabove contained to the contrary notwithstanding, Owner's
leaseback/termination option as set forth in the provisions of Section B hereof
shall not apply to, and Owner will not unreasonably withhold or delay its
consent to an assignment of this Lease, or sublease of all or part of the
demised premises to, any corporation or entity (i) to which substantially all
the assets of Tenant are transferred or (ii) into which Tenant may be merged or
consolidated, or (iii) which purchases fifty-one (51%) percent or more of the
common stock of Tenant, provided that all other provisions of this Article are
satisfied including, but not limited to, those pertaining to the identity and
status of the resulting or surviving corporation.

58 (K) In the event that Tenant fails to execute and deliver any assignment or
sublease to which Landlord consented under the provisions of this Article within
forty-five (45) days after the giving of such consent, then Tenant shall again
comply with all of the provisions of this Article before assigning its interest
in this Lease or subletting the Demised Premises.

58. (L) The consent of Landlord to an assignment or a subletting shall not
relieve Tenant from obtaining the express consent in writing of Landlord to any
further assignment or subletting.

58. (M) If Tenant's interest in the Lease be assigned, or if the Demised
Premises or any part hereof be sublet or occupied by anyone other than Tenant,
Landlord may collect rent from the assignee, subtenant or occupant and apply the
net amount collected to the Fixed Annual Rent and all Additional Rent herein
reserved, but no such assignment, subletting, occupancy or collection shall be
deemed a waiver of the provisions of this Article or of any default hereunder or
the acceptance of the assignee, subtenant or occupant as Tenant, or a release of
all of the covenants, conditions, terms and provisions on the part of Tenant to
be performed or observed.

TENANT'S CERTIFICATE:

59. Tenant shall, without charge, at any time and from time to time within ten
(10) days after request by Landlord certify by written instrument, duly
executed, acknowledged and delivered, to any mortgagee, assignee or purchaser,
or any proposed mortgagee, assignee of any mortgage or

                                       39
<PAGE>   40

purchaser, or any other person, firm or corporation specified by Landlord.

        (a) That this Lease is unmodified and in full force and effect (or, if
there has been modification, that the same is in full force and effect as
modified and stating the modification);

        (b) whether or not to the Tenant's knowledge there are any existing
claims against the Landlord or any defenses, which would prohibit or prevent the
Landlord from enforcing the provisions of the Lease; and

        (c) the dates, if any, to which the rental and other charges hereunder
have been paid in advance.

LANDLORD'S MANAGING AGENT:

60. Tenant agrees that all of the representations, warranties, waivers and
indemnities made in this Lease by Tenant for the benefit of the Landlord shall
inure to the benefit of the Landlord's managing agent, its officers, directors,
employees and independent contractors.

LANDLORD'S COSTS BY TENANT'S DEFAULTS:

61. If Landlord, as a result of a default by Tenant of any of the provisions of
this Lease, including the covenants to pay rent and/or additional rent, makes
any expenditure 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 proceeding, such sums so paid or obligations so 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 therefore, and if any expenditure is incurred in collecting such
obligations, such sum shall be recoverable by Landlord as additional damages.

SPECIAL SERVICES:

62. Upon Tenant's request, Landlord or its managing agent may, but, except as
otherwise expressly provided in this Lease, shall not be obligated to, perform
or cause to be performed for Tenant from time to time various construction,
repair and maintenance work, moving services and other types of work or services
in or about the Demised Premises and the building. If such work or services
shall be performed for Tenant, Tenant agrees to pay therefor, at Landlord's
option, either the standard charges of Landlord or its managing agent in effect
from time to time, if any, or the amount agreed to be paid for such services.
Tenant agrees to pay all such charges within ten (10) days after Landlord or
Landlord's managing agent has submitted a bill therefor and, unless otherwise
expressly provided in writing, such charges shall be payable as additional
rental under this Lease and in the event of a default hereunder Landlord shall
have the same remedies that Landlord would have in the event of default in the
payment of annual rental.

MODIFICATION FOR MORTGAGE:

                                       40
<PAGE>   41

63. If, in connection with obtaining financing or refinancing for the Building
of which the Demised Premises form a part, a banking, insurance or other
institutional lender shall request reasonable modifications to this Lease as a
condition to such financing or refinancing, Tenant will not unreasonably
withhold, delay or defer its consent thereto, provided that such modifications
do not increase the obligations of Tenant hereunder (except, perhaps, to the
extent that Tenant may be required to give notices of any defaults by Landlord
to such lender and/or permit the curing of such default by such lender with the
granting of such additional time for such curing as may be required for such
lender to get possession of the said Building) or adversely affect the leasehold
interest hereby created.

CLEANING & RUBBISH REMOVAL:

64. Tenant, at its expense, and in a manner satisfactory to Landlord, shall
cause the Demised Premises thereof to be kept clean. Tenant shall utilize for
such cleaning only persons as designated by Landlord (in Landlord's sole
discretion), provided that the prices charges by said contractor are compareable
to the prices charged by other contractors for the same work. Landlord hereby
designates First Quality Maintenance Ltd. as its designated cleaning contractor.
The cleaning of the Demised Premises shall include but is not limited to all
waxing, polishing, lamp replacement, cleaning and maintenance work. Tenant
shall, at Tenant's expense, remove all Tenant's rubbish and trash to such area
of the Building and at such time as Landlord shall designate.

EXTERMINATION:

65. Tenant, at its sole cost and expense, shall maintain such extermination
services as are necessary to keep the Demised Premises free of pests and vermin
at all times. Tenant shall utilize for such extermination services only
contractors designated by Landlord in Landlord's sole discretion.

ODORS:

66. (A) Tenant shall not permit any unusual or obnoxious odors to emanate from
the Demised Premises. Tenant will, within five (5) days after written notice
from Landlord, install at its own cost and expense, reasonable control devices
or procedures to eliminate such odors, if any. In the event such condition is
not remedied within said five-day period, Landlord may, at its discretion,
either (a) cure such condition and thereafter add the cost and expense incurred
by Landlord therefor to the next monthly rental to become due and Tenant shall
pay said amount as additional rent; or (b) treat such failure on the part of
Tenant to eliminate such obnoxious odors as a material default hereunder
entitling Landlord to any of its remedies pursuant to the terms of this Lease.
Landlord shall have the right to enter the Demised Premises at any time to
inspect the same and ascertain whether they are clean and free of odors.

66. (B) Tenant covenants that it will hold Landlord harmless against all claims,
damages or causes of action for damages arising after the commencement of the
term of this Lease and will indemnify

                                       41
<PAGE>   42

Landlord for all such suits, orders or decrees in connection with the permeation
from the Demised Premises of unusual or objectionable odors, and Tenant shall
further covenant to pay any attorney's fees or other legal expenses made
necessary in connection with any claim or suit as aforesaid.

66. (C) In the event Landlord requires Tenant to install reasonable control
devices or procedures to eliminate such odors, the material, size and location
of such installations shall be subject to Landlord's prior written approval.
Such work shall not be commenced until plan and specifications therefor have
been submitted to and approved by Landlord.

FLOOR LOADS:

67. 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 bylaw. Tenant agrees to position all machines safes, business
machines, printing equipment or other mechanical equipment in such locations as
to minimize noise and vibration emanating therefrom. All of such installations
shall be placed and maintained by Tenant, at Tenant's sole expense, in setting
sufficient, in Landlord's sole judgment, to absorb and prevent vibration, noise
and annoyance to other Tenants in Landlord's building.

        All of such machines and/or equipment installed by Tenant in the Demised
Premises will not at any time be in violation of existing laws affecting the
Demised Premises or in violation of the Certificate of Occupancy issued for the
building of which the Demised Premises are a part.

AIR CONDITIONING & VENTILATION:

        68. (A) Tenant acknowledges and agrees that the existing
air-conditioning equipment servicing the Demised Premises also services other
premises located on the same floor of the Building. Tenant shall be permitted
the use of and to operate the air conditioning equipment serving the Demised
Premises (the "Air Conditioning Unit") for normal office usage from May 15th to
October 15th in each year during the term of this Lease, on regular business
days from 8 a.m. to 6 p.m., except on Saturdays when the hours will be at 8 a.m.
to 12:00 Noon (after hours air conditioning to be furnished, after reasonable
advance request by Tenant in writing, at Landlord's then standard Building rates
for same). Landlord shall maintain the Air Conditioning Unit and Tenant
acknowledges and agrees that the Air Conditioning Unit is Landlord's property.
Tenant shall pay to Landlord upon demand as additional rent hereunder its
proportionate share of Landlord's costs in maintaining and repairing the Air
Conditioning Unit and Tenant's proportionate share of the total electrical
charges associated with the use and operation of the Air Conditioning Unit in
accordance with the provisions of Article 49 hereof. In addition should it
become necessary to replace the Air Conditioning Unit, Tenant shall pay to
Landlord upon demand as additional rent hereunder its proportionate share of
Landlord's costs in replacing the Air Conditioning Unit amortized over the
remainder of the term of this Lease, using the following formula: said costs
shall equal the product obtained by multiplying said costs by a fraction, the
numerator of which is the number of months, and portions thereof, remaining in
the

                                       42
<PAGE>   43

term of this Lease after such replacement of the Air Conditioning Unit, and the
denominator of which is 120.

68. (B) Use of the Demised Premises, or any part thereof, to a manner exceeding
the design conditions thereof (including occupancy and connected electrical
load) for heating and/or air conditioning service in the Demised Premises, or
rearrangement of partitioning which interferes with normal heating and/or air
conditioning service in the Demised Premises, or the use of computer or data
processing machines, may require changes in the systems servicing the Demised
Premises. Such changes so occasioned, shall be made by Tenant, at Tenant's
expense. Tenant agrees to lower and keep closed the venetian blinds or other
window coverings in the Demised Premises whenever required for the proper
operation of the air conditioning service. No supplemental heating, ventilating
or air conditioning equipment shall be installed or utilized by Tenant in the
Demised Premises without Landlord's prior consent.

68. (C) No diminution or claim of constructive eviction shall or will be claimed
by Tenant by reason of any interruption, curtailment or suspension of the air
conditioning system.

69. Intentionally Omitted.

CONDITIONAL LIMITATION:

70. (A) If Tenant shall default in the payment of the rent reserved herein, or
any item of additional rent herein mentioned, or any part of either during any
two months, whether or not consecutive, in any twelve (12) month period, and (i)
such default continued for more than five (5) days after written notice of such
default by Landlord to Tenant, and (ii) Landlord, after the expiration of such
five (5) day grace period, served upon Tenant petitions and notices of petition
to dispossess Tenant by summary proceedings in each such instance, then,
notwithstanding that such defaults may have been cured prior to the entry of a
judgment against Tenant, any further default in the payment of any money due
Landlord hereunder which shall continue for more than five (5) days after
Landlord shall give a written notice of such default shall be deemed to be
deliberate and Landlord may thereafter serve a written three (3) days' notice of
cancellation of this Lease and the term hereunder 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 elsewhere provided in this Lease.

70. (B) In addition, if Tenant shall have defaulted in the performance of the
same or a substantially similar covenant hereunder, other than a covenant for
the payment of rent or additional rent, twice during any consecutive twelve (12)
month period and Landlord, in each case, shall have given a default notice in
respect of such default, then, regardless of whether Tenant shall have cured
such defaults within any applicable grace period, if Tenant shall again default
in respect of the same or a substantially similar covenant hereunder within a
twelve (12) month period after Landlord gave

                                       43
<PAGE>   44

the second such default notice, Landlord, at its option, and without further
notice to Tenant or opportunity for Tenant to cure such default, may elect to
cancel this Lease by serving a written three (3) days' notice of cancellation of
this Lease and the term hereunder shall end and expire as fully and completely
as if the expiration of such three (3) day period were day herein definitely
fixed for the end and expiration of this Lease and the term hereof, and Tenant
shall then quit and surrender the Demised Premises to Landlord, but Tenant shall
remain liable as elsewhere provided in this Lease.

HOLD-OVER:

71. If Tenant holds over in possession after the expiration or sooner
termination of the original term or of any extended term of this Lease, such
holding over shall not be deemed to extend the term or renew the Lease, but such
holding over thereafter shall continue upon the covenants and conditions herein
set forth except that the charge for use and occupancy of such holding over for
each calendar month or part thereof (even if such pad shall be a small fraction
of a calendar month) shall be the sum of

        (a) 1/12 of the highest annual rent rate set forth on page one of this
Lease, times 2.5, plus

        (b) 1/12 of the net increase, if any, in annual fixed rental due solely
to increases in the cost of the value of electric service furnished to the
premises in effect on the last day of the term of the Lease, plus

        (c) 1/12 of all other items of annual additional rental, which annual
additional rental would have been payable pursuant to this Lease had this lease
not expired, plus

        (d) those other items of additional rent (not annual additional rent)
which would have been payable monthly pursuant to this Lease, had this lease not
expired, which total sum Tenant agrees to pay to Landlord promptly upon demand,
in full, without set-off or deduction. Neither the billing nor the collection of
use and occupancy in the above amount shall be deemed a waiver of any right of
Landlord to collect damages for Tenant's failure to vacate the Demised Premises
after the expiration or sooner termination of this Lease. The aforesaid
provisions of this Article shall survive the expiration or sooner termination of
this Lease.

LIMITATION ON RENT:

72. If at the commencement of, or at any time during the term of this Lease, the
rent reserved in this Lease is not fully collectible by reason of any Federal,
State, County or City law, proclamation, order or regulation, or direction of a
public officer or body pursuant to law, Tenant agrees to take such steps as
Landlord may request to permit Landlord to collect the maximum rents which may
be legally permissible from time to time during the continuance of such legal
rent restriction (but not in excess of the amounts reserved therefor under this
Lease). Upon the termination of such legal rent restriction, Tenant shall pay to
Landlord, to the extent permitted by law, an amount equal to (a) the restriction
less (b) the rents paid by Tenant to Landlord during the period such legal rent
restriction

                                       44
<PAGE>   45

was in effect.

BUILDING DIRECTORY:

73. At the written request of Tenant, Landlord shall list on the building's
directory the name of Tenant, any trade name under which Tenant has the right to
operate, any other entity permitted to occupy any portion of the Demised
Premises under the terms of this Lease, up to a maximum of three (3) listings
without charge to the Tenant. If requested by Tenant, Landlord may (but shall
not be required to) list the name of Tenant's subsidiaries and affiliates;
however, the listing of any name other than that of Tenant shall neither grant
such party or entity any right or interest in this lease or in the Demised
Premises nor constitute Landlord's consent to any assignment or sublease to, or
occupancy of the Demised Premises by, such party or entity. Except for the name
of Tenant, any such listing may be terminated by Landlord, at any time, without
notice.

ADDITIONAL RENT:

74. All payments other than the annual rental to be made by Tenant pursuant to
this Lease shall be deemed additional rent and, in the event of any nonpayment
thereof, Landlord shall have all rights and remedies provided for herein or by
law for nonpayment of rent. Tenant shall have fifteen (15) days from its receipt
of any additional rent statement to notify Landlord, by certified mail, return
receipt requested, that it disputes the correctness of such statement. After the
expiration of such fifteen (15) day period, such statement shall be binding and
conclusive upon Tenant. If Tenant disputes the correctness of any such
statement, Tenant shall, as a condition precedent to its right to contest such
correctness, make payment of the additional rent billed, without prejudice to
its position. If such dispute is finally determined in Tenant's favor, Landlord
shall refund to Tenant the amount overpaid.

SIGNAGE:

75. The Tenant shall not, without the prior written consent of the Landlord,
install nor continue the use of any signs on the windows of the Demised Premises
or on the door or in the hallways on the floor on which the Demised Premises are
located. The Tenant shall submit to the Landlord a rendering of any new proposed
sign which shall be uniform to those in the building. If the Landlord gives its
consent to a sign as provided for in this paragraph the Tenant, at the Tenant's
own cost and expense, shall keep such sign in good and working condition. In
addition, the Tenant shall pay, at its own cost and expense, the Landlord's cost
of the sign and its installation, plus a 15% administrative charge.

MECHANIC'S LIEN:

76. (A) Notice is hereby given that the Landlord shall not, under any
circumstances, be liable to pay for any work, labor or services rendered or
materials furnished to or for the account of the Tenant upon or in connection
with the Demised Premises, and that no mechanic's or other liens for work,

                                       45
<PAGE>   46

labor or services rendered or materials furnished to or for the account of the
Tenant shall, under any circumstances, attach to or affect the reversionary or
other estate or interest of the Landlord in or to the Demised Premises or in and
to any alterations, repairs or improvements to be erected or made thereon.

76. (B) The Tenant shall not suffer nor permit, during the term hereby granted,
any mechanic's or other liens for work, labor, services or materials rendered or
furnished to or for the account of the Tenant upon or in connection with the
Demised Premises or to any improvements erected or to be erected upon the same,
or any portion thereof; and it is understood that Tenant shall obtain and
deliver unconditional written waivers of mechanic's liens as specifically set
forth in Article 3 of the printed form hereof. Nevertheless, Tenant shall hold
the Landlord and the Demised Premises harmless from all liens or charges, of
whatever nature or description, arising from, or in consequence of, any
alterations or improvements that the Tenant shall make, or cause to be made,
upon the Demised Premises.

76. (C) If a notice of mechanic's lien be filed against the Demised Premises
for labor or materials alleged to have been furnished, or to be furnished at the
Demised Premises to or for the Tenant or to or for someone claiming under the
Tenant; and if the Tenant shall fail to take such action as shall cause such
lien to be discharged within five (5) business days after the filing of such
notice; the Landlord may pay the amount of such lien or discharge it by deposit
or by bonding proceeding, and in the event of such deposit or bonding
proceedings, the Landlord may require the lienor to prosecute an appropriate
action to enforce the lienor's claim. In such case, the Landlord may pay any
judgment recovered on such claim. Any amount paid or expense incurred by the
Landlord, as in the clause provided, and any expense incurred or sum of money
paid by the Landlord by reason of the failure of the Tenant to comply with any
provision of this Lease, or in defending any such action, shall be deemed to be
additional rent for the Demised Premises, and shall be due and payable by the
Tenant to the Landlord on the first day of the next following month or at the
option of the Landlord, on the first day of any succeeding month. The receipt
by the Landlord of any installment of the regular stipulated rent hereunder or
any of such additional rent shall not be a waiver of any other additional rent
then due.

TENANT'S LIABILITY FOR CONSTRUCTION:

77. (A) That in the event the Tenant performs any construction or alterations at
the Demised Premises, Landlord shall not be responsible for any structural
defect, latent or otherwise, in the premises, any equipment, or the removal of
asbestos or change of conditions elsewhere in the building or in the premises
resulting from Tenant's construction or alteration, or for any damages to same
or to goods or things contained or placed thereon or in the vicinity thereof.

77. (B) Tenant will indemnify and save Landlord harmless from and against any
and all liabilities, obligations, damages, penalties, claims, costs, charges and
expenses including reasonable attorney's fees, which may be imposed upon or
incurred by or asserted against Landlord by reason of any of the following
occurring during the terms of this Lease:

                                       46
<PAGE>   47

        (i) any work or thing done by Tenant or any agent, contractor, employee,
licensee or invitee of Tenant in, on or about the Demised Premises or any part
thereof;

        (ii) any use, non-use, possession, occupation, condition, operation,
maintenance or management by Tenant of the Demised Premises;

        (iii) all fines, suits, proceedings, claims, demands and actions of any
kind or nature whatsoever brought by anyone whomsoever arising or growing out of
or in any wise connection with the Tenant's use, operation and maintenance of
the Demised Premises;

        (iv) any accident, injury, or damage to any person or property occurring
in the Demised Premises or any part thereof;

        (v) any failure on the part of Tenant to perform or comply with any of
the agreements, terms, or conditions contained in this Lease on its part to be
performed or complied with. In the event that any action or proceeding shall be
brought by Landlord by reason of any claim covered by this paragraph, Tenant,
upon written notice from Landlord, will at Tenant's sole cost and expense resist
or defend the same; and

        (vi) Tenant has been advised that Landlord makes no representation as to
the load bearing capacity of the structure.

TENANT'S WORK:

78. Prior to the Tenant commencing any work respecting any alteration or
improvement at the Demised Premises, Tenant shall satisfy each and every
conditions set forth below.

        (1) Tenant shall, at its sole cost and expense, supply Landlord with
professionally prepared plans and specifications for Landlord's review and
approval. Landlord hereby reserves the right to require certain reasonable
revisions thereto to same. Tenant acknowledges and agrees that Tenant shall pay
upon demand, as additional rent hereunder, Landlord's reasonable out of pocket
expenses associated with Landlord's review of any such plans submitted by
Tenant.

        (2) Subsequent to the delivery and approval by Landlord of Tenant's
plans and specifications, Tenant shall employ its own contractor in connection
with the construction to be performed at the Demised Premises in accordance with
those approved plans and specifications. Tenant agrees that all work to be
performed shall be done in accordance with good and sound building standards and
shall be further performed in a professional workmanlike manner. All of the
Tenant's work shall be done in accordance with all governmental regulations,
with the Tenant being responsible at its own cost and expense for obtaining
permits and approvals, including asbestos inspection and removal, if necessary,
as well as sign-offs and compliance with the other provisions of this Lease.
Furthermore, Tenant agrees that all work to be performed by any of the trades
employed shall in no way affect work being performed at the building by
Landlord, or any other tenant, subtenant or

                                       47
<PAGE>   48

occupant of the Building Project (collectively, "Landlord's Authorized
Entities"), or any of the unions of which any of Landlord's Authorized Entities'
contractors' employees may be members.

        (3) Tenant shall provide Landlord with a hold harmless and
indemnification agreement relative to such proposed work.

        (4) Tenant shall provide insurance coverage in amounts reasonably
satisfactory to Landlord and satisfactory to Landlord's lender which shall
protect Landlord's interest during the course of construction and, in addition
thereto, Tenant shall provide Landlord with a Certificate of Insurance
reflecting such coverage, and the naming of Landlord and Landlord's lender as
additional insureds.

        In the event Tenant shall violate any of the above provisions, same
shall be considered a material breach under this Lease and Landlord shall be
entitled to immediately avail itself of all legal remedies that it is entitled
to with respect to such breach.

79. Intentionally omitted.

REPLACEMENT SPACE:

80. Tenant covenants and agrees that Landlord shall have the absolute and
unqualified right, upon notice to Tenant to designate as a replacement for the
Demised Premises that part of any floor in the Building that approximately
corresponds and is reasonably comparable to the Demised Premises which shall
include a comparable amount of rentable square footage and a reasonably similar
number of windows and which shall also include the same type and style of
improvements as existed in the Premises immediately prior to the date Tenant
receives the foregoing notice, to be installed by Landlord, at its sole cost and
expense, prior to the date that Tenant takes occupancy of said replacement
space. Such notice shall specify and designate the space to be a replacement for
the Demised Premises. Notwithstanding such replacement, this Lease and all the
terms, provisions, covenants and conditions contained in the Lease shall remain
and continue in full force and effect, except that the Demised Premises shall be
and be deemed to be such replacement space (hereinafter called "Replacement
Space"), with the same force and effect as if the Replacement Space were
specified in this agreement as the Demised Premises.

In the event of the replacement of space as provided in above,

        (1) if the Replacement Space has a rentable area less than the rentable
area of the Demised Premises, the annual fixed rent and the escalations from the
date that Tenant takes possession of the Replacement Space shall be decreased
pro rata to reflect the lesser number of rentable square feet in the Replacement
Space;

        (2) Landlord shall, at Landlord's expenses, prepare the Replacement
Space in substantially the same manner as the Demised Premises and Tenant shall
have the right to remove any floor covering, wall covering, cabinet work, and
any other decoration in the Demised Premises to the Replacement

                                       48
<PAGE>   49

Space, as well as telephone lines and any other communication lines to the
Replacement Space;

        (3) as soon as Landlord has completed preparing the Replacement Space as
set forth above, Tenant upon five (5) days prior written notice shall move to
the Replacement Space at Landlord's expense, and upon failure of Tenant to so
move to the Replacement Space, Landlord may, as Tenant's agent, remove Tenant
from the Demised Premises to the Replacement Space. Failure of Tenant to move to
the Replacement Space pursuant to this Article 80 shall be deemed a substantial
breach of this Lease; and

        (4) upon request from Landlord, Tenant shall supply Landlord with
satisfactory proof of out of pocket expenses reasonably incurred by Tenant in
moving from the Substitute Premises to the Replacement Space, and Landlord
shall, within thirty (30) days of receipt thereof, reimburse Tenant, by way of
a credit or otherwise, for such expenses.

        Following such replacement of space Landlord and Tenant shall, promptly
at the request of either party, execute and deliver an agreement setting forth
such substitution of space and the change (if any) in the annual fixed rent, and
rentable area in the appropriate places in this Lease.

USE AND OCCUPANCY:

81. Tenant shall use and occupy the Demised Premises in a high-class manner in
accordance with Article 2 hereof.

        Tenant agrees that Landlord shall have the right to prohibit the
continued use by Tenant of any method of business operation, advertising or
displays if, in Landlord's opinion, the continued use thereof would impair the
reputation of the building in which the Demised Premises are located, or is
otherwise out of harmony with the general character thereof, and upon notice
from Landlord, Tenant shall forthwith refrain from or discontinue such
activities. The parties agree that any breach by Tenant of the provisions of
this Article shall constitute a material breach of this Lease on the part of the
Tenant hereunder which if not cured within three (3) days after notice from
Landlord, shall, in addition to all other rights and/or remedies available to
Landlord under this Lease or in law or in equity, constitute an event of default
as defined in Article 17 of this Lease.

MISCELLANEOUS PROVISIONS:

82. (A) Prior to Tenant or any subtenant of Tenant moving out of the Building,
Tenant or such subtenant shall pay to Landlord a sum of money equal to
Landlord's estimate of costs which Landlord will incur in connection with such
move-out including, without limitation, payroll costs for freight elevators
operators and other building personnel. No move-out shall be effected prior to
such payment.

82. (B) Tenant shall not permit any animals to be brought into any portion of
the Demised Premises or me building of which same form apart by Tenant or any
employee, servant, contractor or invitee

                                       49
<PAGE>   50

of Tenant.

ADDITIONAL DEFAULT REMEDIES:

83. It is hereby agreed that in the event of the termination of this Lease
pursuant to the provisions of Article 17, notwithstanding the provisions of
Article 18, that Landlord shall, at Landlord's option, forthwith be entitled to
recover from Tenant as and for liquidated damages with respect to any such lease
termination, an amount equal to the rent reserved hereunder for the unexpired
portion of the term demised. In the computation of such damages, all rent
payable hereunder after the date of termination, shall be discounted from the
date installments of rent would be due hereunder if this lease had not been
terminated to the date of payment at the rate of four (4%) percent per annum. In
the event that the premises demised hereunder are relet after the date of such
termination and the date of the collection of the aforesaid liquidated damages,
then Landlord agrees that on the date (the "Normal Expiration Date") which would
otherwise have been the normal expiration of this lease but for the termination
of this lease pursuant to the provisions of Article 17, Landlord shall pay to
Tenant a sum equal to the fixed annual rent actually paid Landlord (exclusive of
any escalation payments, tax payments, fuel payments, operating costs payments,
percentage payments and the like whether denominated as rent or otherwise) from
the date of such termination to the Normal Expiration Date, less any and all
expenses of any type, kind or nature incurred by Landlord in connection with the
reletting of the Demised Premises whether foreseen or unforeseen and whether
ordinary or extraordinary as conclusively determined by Landlord, provided,
however, that such payment shall in no event exceed the amount of liquidated
damages actually paid by Tenant as aforesaid. The foregoing, however, shall not
imply any obligation upon Landlord to relet the premises demised hereunder in
the event of any termination pursuant to the provisions of Article 17, nor shall
it constitute Landlord as Tenant's agent with respect to any reletting of such
premises demised hereunder. Nothing herein contained shall, however, limit or
prejudice the right of Landlord to prove for and obtain as liquidated damages by
reason of any 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
than, equal to, or less than the amount referred to above.

RENT CREDIT

84. If and so long as Tenant is not in default under this Lease beyond any grace
period, Tenant shall be entitled to a rent credit in the amount of $42,567.00,
to be applied against the first (1st), second (2nd), third (3rd) fourth (4th)
and fifth (5th) monthly installments of fixed annual rent accruing under this
Lease after possession of the Demised Premises is delivered to Tenant, so that
Tenant shall occupy the Demised Premises free of such fixed annual rent for that
period; except that Tenant shall nevertheless be obligated, from and after the
date that Landlord delivers possession of the Demised Premises to Tenant, to pay
additional rents hereunder.

Anything contained hereinabove to the contrary notwithstanding, if Tenant at any
time during the term of this Lease, breaches any material covenant, condition or
provision of this Lease and fails to

                                       50
<PAGE>   51

cure such breach within any applicable grace period, and provided that this
Lease is terminated by Landlord because of such material default, then, in
addition to all other damages and remedies herein provided and to which Landlord
may be otherwise entitled, Landlord shall also be entitled to the repayment in
full of any rent credit theretofore enjoyed by Tenant, which repayment Tenant
shall make upon demand therefor.

ASBESTOS CONTAINING MATERIALS:

85. Notwithstanding anything to the contrary contained in this Lease, in the
event of the existence of any deteriorated asbestos or deteriorated
asbestos-containing material (collectively, "ACM") within the Premises, Landlord
shall remove, enclose, encapsulate or otherwise manage such ACM as required by
applicable law; provided, however, that to the extent that Tenant has (i)
disturbed such ACM, (ii) caused such ACM to become friable by the performance of
any work or alterations in the Premises including, without limitation, Tenant's
Alterations or (iii) installed same, then Tenant shall remove, enclose,
encapsulate or otherwise manage such ACM as required by applicable law at its
sole cost and expense. Landlord represents that upon the substantial completion
of Landlord's Work, Landlord shall provide an ACP-5 form for the Demised
Premises.

COMMENCEMENT OF TERM:

86. A. The Premises are leased for a term of approximately Ten (10) years
("Term") which shall commence on a date ("Commencement Date") which shall the
date that a fully executed counterpart is executed and delivered by Landlord to
Tenant and shall end on the last day of the calendar month in which the day
preceding the tenth (10th) anniversary of the Commencement Date occurs
("Expiration Date") unless the Term shall terminate sooner pursuant to any of
the terms of this Lease or pursuant to law.

        B. Landlord and Tenant acknowledge and agree that Tenant shall pay to
Landlord fixed annual rent, subject to the provisions of Article 85 hereof, at
an annual rate of

        (i) the sum of $102,160.00 per annum for the period commencing on the
Commencement Date through the last day of the calendar month preceding the fifth
(5th) anniversary of the Commencement Date; and

        (ii) the sum of $112,376.00 per annum for the period commencing on the
fifth (5th) anniversary of the Commencement Date through the Expiration Date.

        C. When the Commencement Date has occurred, Tenant, upon the request of
Landlord, shall execute a statement prepared by Landlord, stating the
Commencement Date unless Tenant disputes the correctness thereof. Any failure of
Tenant to execute such statement shall not affect the Commencement Date as
determined by Landlord.

                                       51
<PAGE>   52

        D. Except as provided in this Article, Tenant expressly waives any right
to rescind this Lease under Section 223-a of the New York Real Property Law or
under any present or future statute of similar import then in force and further
expressly waives the right to recover any damages, direct or indirect, which may
result from Landlord's failure to deliver possession of the Premises on the
Commencement Date. Tenant agrees that the provisions of this Article are
intended to constitute "an express provision to the contrary" within the meaning
of said Section 223-a.

EXISTING TENANT:

87. Tenant acknowledges and agrees that the Demised Premises is presently
occupied by another tenant, AMTA Computer of New York, Inc (the "Existing
Tenant"), as temporary space under a lease agreement dated February 1999,
between Landlord and the Existing Tenant (the "Existing Lease"). Pursuant to the
Existing Lease, the Existing Tenant is required to surrender to Landlord
possession of the Demised Premises on the earlier of (i) June 1, 1999 or (ii)
the date that the Existing Tenant substantially completes its initial alteration
work for its permanent space pursuant to the terms of the Existing Lease.
landlord covenants and agrees that Landlord shall not renew or extend the period
of time that the Existing Tenant is permitted to remain in the Demised Premises.
Landlord and Tenant agree that Landlord shall deliver possession of the Demised
Premises to Tenant on that date in which (x) Landlord's Work has been
substantially completed and (y) the Existing Tenant has vacated the Demised
Premises. Landlord and Tenant agree that if the Existing Tenant does not vacate
on or before the time required by the Existing Lease, and as a result Landlord
shall be unable to deliver possession of the Demised Premises to Tenant as
required by this Lease then Landlord shall not be subject to any liability for
such failure, and this lease shall stay in full force and effect without
extension of the term, however, the Tenant's obligation to pay rent hereunder
shall not commence and any rent credits to which Tenant is entitled hereunder
shall be similarly delayed until possession of the Demised Premises is delivered
to Tenant.

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

                                            NEWGREEN 50W23 REALTY LLC

                                            By: SL GREEN OPERATING PARTNERSHIP,
                                                L.P., Manager

                                            By: SL Green Realty Corp., general
                                                partner

                                            By: /s/ [Signature Illegible] EVP
                                               ---------------------------------

                                            LATITUDE 90, INC.

                                            By: /s/ [Signature Illegible], V.P.,
                                                Eastern Sales
                                               ---------------------------------
                                               (name)                  (title)

                                       52

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