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                                                                   EXHIBIT 10.12

                   AMERICAN INDUSTRIAL REAL ESTATE ASSOCIATION

             STANDARD INDUSTRIAL/COMMERCIAL SINGLE-TENANT LEASE-NET
                (DO NOT USE THIS FORM FOR MULTI-TENANT BUILDINGS)


1.     BASIC PROVISIONS ("BASIC PROVISIONS").

       1.1 PARTIES: This Lease ("Lease"), dated for reference purposes only,
January 31, 1997 is made by and between Irvine East Partners Lot 35 ("Lessor")
and Endocare, Inc., a Delaware corporation ("Lessee"), (collectively, the
"PARTIES," or individually, a "PARTY").

       1.2 PREMISES: That certain real property, including all improvements
therein or to be provided by Lessor under the terms of this Lease, and commonly
known as 7 Studebaker, Irvine Spectrum located in the County of Orange , State
of California , and generally described as (describe briefly the nature of the
property and, if applicable, the "PROJECT", if the property is located within a
Project) An approximate 16,111 square foot freestanding building and all the
parking area (AP #591-023-04) ("PREMISES"). (See also Paragraph 2)

       1.3 TERM: Five (5) years and 0 months ("ORIGINAL TERM") commencing March
15, 1997 ("COMMENCEMENT DATE") and ending March 14, 2002 ("EXPIRATION DATE").
(See also Paragraph 3.)

       1.4 EARLY POSSESSION: upon fully executed and delivered leases ("EARLY
POSSESSION DATE"). (See also Paragraphs 3.2 and 3.3.)

       1.5 BASE RENT: $ see Addendum #50 per month ("BASE RENT"), payable on the
15th day of each month commencing April 15, 1997. (See also Paragraph 4)

[ ] If this box is checked, there are provisions in this Lease for the Base Rent
    to be adjusted.

       1.6 BASE RENT PAID UPON EXECUTION: $12,566.58 as Base Rent for the period
March 15, 1997 - April 14, 1997.

       1.7 SECURITY DEPOSIT: $ 12,566.58 ("SECURITY DEPOSIT"). (See also
Paragraph 5)

       1.8 AGREED USE: Administrative office, assembly, research and development
and


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distribution of medical components. (See also Paragraph 6)


       1.9 INSURING PARTY: Lessor is the "INSURING PARTY" unless otherwise
stated herein. (See also Paragraph 8)

       1.10 REAL ESTATE BROKERS: (See also Paragraph 15)

               (A) REPRESENTATION: The following real estate brokers
(collectively, the "BROKERS") and brokerage relationships exist in this
transaction (check applicable boxes):

/X/    Voit Commercial Brokerage represents Lessor exclusively ("LESSOR'S
       BROKER"); or

/X/    CB Commercial Real Estate Group represents Lessee exclusively ("LESSEE'S
       BROKER");

/ /     ______________________________________ represents both Lessee and Lessor
       ("DUAL AGENCY").

               (B) PAYMENT TO BROKERS: Upon execution and delivery of this Lease
by both Parties, Lessor shall pay to the Broker the fee agreed to in their
separate written agreement (or if there is no such agreement, the sum of as per
separate agreement % of the total Base Rent for the brokerage services rendered
by said Broker).

       1.11 GUARANTOR. The obligations of the Lessee under this Lease are to be
guaranteed by N/A ("GUARANTOR"). (See also Paragraph 37)

       1.12 ADDENDA AND EXHIBITS. Attached hereto is an Addendum or Addenda
consisting of Paragraphs 50 through 57 and Exhibits "A" and "B" , all of which
constitute a part of this Lease.

2.     PREMISES.

       2.1 LETTING. Lessor hereby leases to Lessee, and Lessee hereby leases
from Lessor, the Premises, for the term, at the rental, and upon all of the
terms, covenants and conditions set forth in this Lease. Unless otherwise
provided herein, any statement of size set forth in this Lease, or that may have
been used in calculating rental, is an approximation which the Parties agree is
reasonable and the rental based thereon is not subject to revision whether or
not the actual square footage is more or less.

       2.2 CONDITION. Lessor shall deliver the Premises to Lessee broom clean
and free of debris on the Commencement Date or the Early Possession Date,
whichever first occurs ("START DATE"), and, so long as the required service
contracts described in Paragraph 7.1(b) below are obtained by Lessee within
thirty (30) days following the Start Date, warrants that the existing
electrical, plumbing, fire sprinkler, lighting, heating, ventilating and air
conditioning systems ("HVAC"), loading doors, if any, and all other such
elements in the Premises, other than those constructed by Lessee, shall be in
good operating condition on said date and that the structural


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elements of the roof, bearing walls and foundation of any buildings on the
Premises (the "BUILDING") shall be free of material defects. If a non-compliance
with said warranty exists as of the Start Date, Lessor shall, as Lessor's sole
obligation with respect to such matter, except as otherwise provided in this
Lease, promptly after receipt of written notice from Lessee setting forth with
specifity the nature and extent of such non-compliance, rectify same at Lessor's
expense. If, after the Start Date, Lessee does not give Lessor written notice of
any non-compliance with this warranty within: (i) one year as to the surface of
the roof and the structural portions of the roof, foundations and bearing walls,
(ii) six (6) months as to the HVAC systems, (iii) thirty (30) days as to the
remaining systems and other elements of the Building, correction of such
non-compliance shall be the obligation of Lessee at Lessee's sole cost and
expense.

       2.3 COMPLIANCE. Lessor warrants that the improvements on the Premises
comply with all applicable laws, covenants or restrictions of record, building
codes, regulations and ordinances ("APPLICABLE REQUIREMENTS") in effect on the
Start Date. Said warranty does not apply to the use to which Lessee will put the
Premises or to any Alterations or Utility installations (as defined in Paragraph
7.3(a)) made or to be made by Lessee. NOTE:Lessee is responsible for determining
whether or not the zoning is appropriate for Lessee's intended use, and
acknowledges the past uses of the Premises may no longer be allowed. If the
Premises does not comply with said warranty, Lessor shall, except as otherwise
provided, promptly after receipt of written notice from Lessee setting forth
with specificity the nature and extent of such non-compliance, rectify the same
at Lessor's expense. If Lessee does not give Lessor written notice of a
non-compliance with this warranty within six (6) months following the Start
Date, correction of that non-compliance shall be the obligation of Lessee at
Lessee's sole cost and expense. If the Applicable Requirements are hereafter
changed (as opposed to being in existence at the Start Date, which is addressed
in Paragraph 6.2(e) below) so as to require during the term of this Lease the
construction of an addition to or an alteration of the Building, the remediation
of any Hazardous Substance, or the reinforcement or other physical modification
of the Building ("CAPITAL EXPENDITURE"), Lessor and Lessee shall allocate the
cost of such work as follows:

               (A) Subject to Paragraph 2.3(c) below, if such Capital
Expenditures are required as a result of the specific and unique use of the
Premises by Lessee as compared with uses by tenants in general, Lessee shall be
fully responsible for the cost thereof, provided, however that if such Capital
Expenditure is required during the last two (2) years of this Lease and the cost
thereof exceeds six (6) months' Base Rent, Lessee may instead terminate this
Lease unless Lessor notifies Lessee, in writing, within ten (10) days after
receipt of Lessee's termination notice that Lessor has elected to pay the
difference between the actual cost thereof and the amount equal to six (6)
months' Base Rent. If Lessee elects termination, Lessee shall immediately cease
the use of the Premises which requires such Capital Expenditure and deliver to
Lessor written notice specifying a termination date at least ninety (90) days
thereafter. Such termination date shall, however, in no event be earlier than
the last day that Lessee could legally utilize the Premises without commencing
such Capital Expenditure.

               (B) If such Capital Expenditure is not the result of the specific
and unique use of the Premises by Lessee (such as, governmentally mandated
seismic modifications), then Lessor and Lessee shall allocate the obligation to
pay for such costs pursuant to the provisions of


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Paragraph 7.1(c); provided, however, that if such Capital Expenditure is
required during the last two years of this Lease or if Lessor reasonably
determines that it is not economically feasible to pay its share thereof, Lessor
shall have the option to terminate this Lease or if Lessor reasonably determines
that it is not economically feasible to pay its share thereof, Lessor shall have
the option to terminate this Lease upon ninety (90) days prior written notice to
Lessee unless Lessee notifies Lessor, in writing, within ten (10) days after
receipt of Lessor's termination notice that Lessee will pay for such Capital
Expenditure. If Lessor does not elect to terminate, and fails to tender its
share of any such Capital Expenditure, Lessee may advance such funds and deduct
same, within Interest, from Rent until Lessor's share of such costs have been
fully paid. If Lessee is unable to finance Lessor's share, or if the balance of
the Rent due and payable for the remainder of this Lease is not sufficient to
fully reimburse Lessee on an offset basis, Lessee shall have the right to
terminate this Lease upon thirty (30) days written notice to Lessor.

               (C) Notwithstanding the above, the provisions concerning Capital
Expenditures are intended to apply only to non-voluntary, unexpected, and new
Applicable Requirements. If the Capital Expenditures are instead triggered by
Lessee as a result of an actual or proposed change in use, change in intensity
of use, or modification to the Premises then, and in that event, Lessee shall be
fully responsible for the cost thereof, and Lessee shall not have any right to
terminate this Lease.

       2.4 ACKNOWLEDGEMENTS. Lessee acknowledges that: (a) it has been advised
by Lessor and/or Brokers to satisfy itself with respect to the condition of the
Premises (including, but not limited to the electrical HVAC and fire sprinkler
systems, security, environmental aspects, and compliance with Applicable
Requirements), and their suitability for Lessee's intended use, (b) Lessee has
made such investigation as it deems necessary with reference to such matters and
assumes all responsibility therefor as the same relate to its occupancy of the
Premises, and (c) neither Lessor, Lessor's agents, nor any Broker has made any
oral or written representations or warranties with respect to the said matters
other than as set forth in this Lease. In addition, Lessor acknowledges that:
(a) Broker has made no representations, promises or warranties concerning
Lessee's ability to honor the Lease or suitability to occupy the Premises, and
(b) it is Lessor's sole responsibility to investigate the financial capability
and/or suitability of all proposed tenants.

       2.5 LESSEE AS PRIOR OWNER/OCCUPANT. The warranties made by Lessor in
Paragraph 2 shall be of no force or effect if immediately prior to the Start
Date Lessee was the owner or occupant of the Premises. In such event, Lessee
shall be responsible for any necessary corrective work.

3.     TERM.

       3.1 Term. The Commencement Date, Expiration Date and Original Term of
this Lease are as specified in Paragraph 1.3.

       3.2 EARLY POSSESSION. If Lessee totally or partially occupies the
Premises prior to the Commencement Date, the obligation to pay Base Rent shall
be abated for the period of such early


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possession. All other terms of this Lease, however, (including, but not limited
to the obligations to pay Real Property Taxes and insurance premiums and to
maintain the Premises) shall, however, be in effect during such period. Any such
early possession shall not affect the Expiration Date.

       3.3 DELAY IN POSSESSION. Lessor agrees to use its best commercially
reasonable efforts to deliver possession of the Premises to Lessee by the
Commencement Date. If, despite said efforts, Lessor is unable to deliver
possession as agreed, Lessor shall not be subject to any liability therefor, nor
shall such failure affect the validity of this Lease. Lessee shall not, however,
be obligated to pay Rent or perform its other obligations until it receives
possession of the Premises. If possession is not delivered within sixty (60)
days after the Commencement Date, Lessee may, at its option, by notice in
writing within ten (10) days after the end of such sixty (60) day period, cancel
this Lease, in which event the Parties shall be discharged from all obligations
hereunder. If such written notice is received by Lessor within said ten (10) day
period, Lessee's right to cancel shall terminate. Except as otherwise provided,
if possession is not tendered to Lessee when required and Lessee does not
terminate this Lease, as aforesaid, any period of rent abatement that Lessee
would otherwise have enjoyed shall run from the date of delivery of possession
and continue for a period equal to what Lessee would otherwise have enjoyed
under the terms hereof, but minus any days of delay caused by the acts or
omissions of Lessee. If possession of the Premises is not delivered within four
(4) months after the Commencement Date, this Lease shall terminate unless other
agreements are reached between Lessor and Lessee, in writing.

       3.4 LESSEE COMPLIANCE. Lessor shall not be required to tender possession
of the Premises to Lessee until Lessee complies with its obligation to provide
evidence of insurance (Paragraph 8.5). Pending delivery of such evidence, Lessee
shall be required to perform all of its obligations under this Lease from and
after the Start Date, including the payment of Rent, notwithstanding Lessor's
election to withhold possession pending receipt of such evidence of insurance.
Further, if Lessee is required to perform any other conditions prior to or
concurrent with the Start Date, the Start Date shall occur but Lessor may elect
to withhold possession until such conditions are satisfied.

4.     RENT.

       4.1 RENT DEFINED. All monetary obligations of Lessee to Lessor under the
terms of this Lease (except for the Security Deposit) are deemed to be rent
("RENT").

       4.2 PAYMENT. Lessee shall cause payment of Rent to be received by Lessor
in lawful money of the United States, without offset or deduction, on or before
the day on which it is due. Rent for any period during the term hereof which is
for less than one (1) full calendar month shall be prorated based upon the
actual number of days of said month. Payment of Rent shall be made to Lessor at
its address stated herein or to such other persons or place as Lessor may from
time to time designate in writing. Acceptance of a payment which is less than
the amount then due shall not be a waiver of Lessor's rights to the balance of
such Rent, regardless of Lessor's endorsement of any check so stating.


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5. SECURITY DEPOSIT. Lessee shall deposit with Lessor upon execution hereof the
Security Deposit as security for Lessee's faithful performance of its
obligations under this Lease. If Lessee fails to pay Base Rent, or otherwise
Defaults under this Lease, Lessor may use, apply or retain all or any portion of
said Security Deposit for the payment of any amount due Lessor or to reimburse
or compensate Lessor for any liability, cost, expense, loss or damage which
Lessor may suffer or incur by reason thereof. If Lessor uses or applies all or
any portion of said Security Deposit, Lessee shall within ten (10) days after
written request therefor deposit monies with Lessor sufficient to restore said
Security Deposit to the full amount required by this Lease. Should the Agreed
Use be amended to accommodate a material change in the business of Lessee or to
accommodate a sublessee or assignee, Lessor shall have the right to increase the
Security Deposit to the extent necessary, in Lessor's reasonable judgment, to
account for any increased wear and tear that the Premises may suffer as a result
thereof. If a change in control of Lessee occurs during this Lease and following
such change the financial condition of Lessee is, in Lessor's reasonable
judgment, significantly reduced, Lessee shall deposit such additional monies
with Lessor as shall be sufficient to cause the Security Deposit to be at a
commercially reasonable level based on said change in financial condition.
Lessor shall not be required to keep the Security Deposit to separate from its
general accounts. Within fourteen (14) days after the expiration or termination
of this Lease, if Lessor elects to apply the Security Deposit only to unpaid
Rent, and otherwise within thirty (30) days after the Premises have been vacated
pursuant to Paragraph 7.4(c) below, Lessor shall return that portion of the
Security Deposit not used or applied by Lessor. No part of the Security Deposit
shall be considered to be held in trust, to bear interest or to be prepayment
for any monies to be paid by Lessee under this Lease.

6.     USE.

       6.1 USE. Lessee shall use and occupy the Premises only for the Agreed
Use, or any other legal use which is reasonably comparable thereto, and for no
other purpose. Lessee shall not use or permit the use of the Premises in a
manner that is unlawful, creates damage, waste or a nuisance, or that disturbs
owners and/or occupants of, or causes damage to, neighboring properties. Lessor
shall not unreasonably withhold or delay its consent to any written request for
a modification of the Agreed Use, so long as the same will not impair the
structural integrity of the improvements on the Premises or the mechanical or
electrical systems therein, is not significantly more burdensome to the
Premises. If Lessor elects to withhold consent, Lessor shall within five (5)
business days after such request given written notification of same, which
notice shall include an explanation of Lessor's objections to the change in use.

       6.2     HAZARDOUS SUBSTANCES.

               (A) REPORTABLE USES REQUIRE CONSENT. The term "HAZARDOUS
SUBSTANCE" as used in this Lease shall mean any product, substance, or waste
whose presence, use, manufacture, disposal, transportation or release, either by
itself or in combination with other materials expected to be on the Premises, is
either: (i) potentially injurious to the public health, safety or welfare, the
environment or the Premises, (ii) regulated or monitored by any governmental
authority; or (iii) a basis for liability of Lessor to any governmental agency
or third party under any applicable statute or common law theory. Hazardous
Substance shall include,


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but not be limited to, hydrocarbons, petroleum, gasoline, and/or crude oil or
any products, by-products or fractions thereof. Lessee shall not engage in any
activity in, or on the Premises which constitutes a Reportable Use of Hazardous
Substances without the express prior written consent of Lessor and timely
compliance (at Lessee's expense) with all Applicable Requirements. "Reportable
Use" shall mean (i) the installation or use of any above or below ground storage
tank, (ii) the generation, possession, storage, use, transportation, or disposal
of a Hazardous Substance that requires a permit from, or with respect to which a
report, notice, registration or business plan is required to be filed with, any
governmental authority, and/or (iii) the presence at the Premises of a Hazardous
Substance with respect to which any Applicable Requirements requires that a
notice be given to persons entering or occupying the Premises or neighboring
properties. Notwithstanding the foregoing, lessee may use any ordinary and
customary materials reasonably required to be used in the normal course of the
Agreed Use, so long as such use is in compliance with all Applicable
Requirements, is not a Reportable Use, and does not expose the Premises or
neighboring property to any meaningful risk of contamination or damage or expose
Lessor to any liability therefor. In addition, Lessor may condition its consent
to any Reportable Use upon receiving such additional assurances as Lessor
reasonably deems necessary to protect itself, the public, the Premises and/or
the environment against damage, contamination, injury and/or liability,
including, but not limited to, the installation (and removal on or before Lease
expiration or termination) of protective modifications (such as concrete
encasements) and/or increasing the Security Deposit.

               (B) DUTY TO INFORM LESSOR. If Lessee knows, or has reasonable
cause to believe, that a Hazardous Substance has come to be located in, on,
under or about the Premises, other than as previously consented to by Lessor,
Lessee shall immediately give written notice of such fact to Lessor, and provide
Lessor with a copy of any report, notice, claim or other documentation which it
has concerning the presence of such Hazardous Substance.

               (C) LESSEE REMEDIATION. Lessee shall not cause or permit any
Hazardous Substance to be spilled or released in, on, under, or about the
Premises (including through the plumbing or sanitary sewer system) and shall
promptly, at Lessee's expense, take all investigatory and/or remedial action
reasonably recommended, whether or not formally ordered or required, for the
cleanup of any contamination of, and for the maintenance, security and/or
monitoring of the Premises or neighboring properties, that was caused or
materially contributed to by Lessee, or pertaining to or involving any Hazardous
Substance brought onto the Premises during the term of this Lease, by or for
Lessee, or any third party.

               (D) LESSEE INDEMNIFICATION. Lessee shall indemnify, defend and
hold Lessor, its agents, employees, lenders and ground lessor, if any, harmless
from and against any and all loss of rents and/or damages, liabilities,
judgments, claims, expenses, penalties, and attorney's and consultant's fees
arising out of or involving any Hazardous Substance brought onto the Premises by
or for Lessee, or any third party (provided, however, that Lessee shall have no
liability under this Lease with respect to underground migration of any
Hazardous Substance under the Premises from adjacent properties). Lessee's
obligations shall include, but not be limited to, the effects of any
contamination or injury to person, property or the environment created or
suffered by Lessee, and the cost of investigation, removal, remediation,
restoration and/or abatement, and


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shall survive the expiration or earlier termination of this Lease. NO
TERMINATION, CANCELLATION OR RELEASE AGREEMENT ENTERED INTO BY LESSOR AND LESSEE
SHALL RELEASE LESSEE FROM ITS OBLIGATIONS UNDER THIS LEASE WITH RESPECT TO
HAZARDOUS SUBSTANCES, UNLESS SPECIFICALLY SO AGREED BY LESSOR IN WRITING AT THE
TIME OF SUCH AGREEMENT.

               (E) LESSOR INDEMNIFICATION. Lessor and its successors and assigns
shall indemnify, defend, reimburse and hold Lessee, its employees and lenders,
harmless from and against any and all environmental damages which existed as a
result of Hazardous Substances on the Premises prior to the Start Date or which
are caused by the gross negligence, or intentional acts of Lessor, its agents or
employees. Lessor's obligations, as and when required by the Applicable
Requirements, shall include, but not be limited to, the cost of investigation,
removal, remediation, restoration and/or abatement, and shall survive the
expiration or termination of this Lease.

               (F) INVESTIGATIONS AND REMEDIATIONS. Lessor shall retain the
responsibility and pay for any investigations or remediation measures required
by governmental entities having jurisdiction with respect to the existence of
Hazardous Substances on the Premises prior to the Start Date. Lessee shall
cooperate fully in any such activities at the request of Lessor, including
allowing Lessor and Lessor's agents to have reasonable access to the Premises at
reasonable times in order to carry out Lessor's investigative and remedial
responsibilities.

               (G) LANDLORD TERMINATION OPTION. If a Hazardous Substance
Condition occurs during the term of this Lease, unless Lessee is legally
responsible therefor (in which case Lessee shall make the investigation and
remediation thereof required by the Applicable Requirements and this Lease shall
continue in full force and effect, but subject to Lessor's rights under
Paragraph 6.2(d) and Paragraph 13), Lessor may, at Lessor's option, either (i)
investigate and remediate such Hazardous Substance Condition, if required, as
soon as reasonably possible at Lessor's expense, in which event this Lease shall
continue in full force and effect, or (ii) if the estimated cost to remediate
such condition exceeds twelve (12) times the then monthly Base Rent or $100,000,
whichever is greater, give written notice to Lessee, within thirty (30) days
after receipt by Lessor of knowledge of the occurrence of such Hazardous
Substance Condition, of Lessor's desire to terminate this Lease as of the date
sixty (60) days following the date of such notice. In the event Lessor elects to
give a termination notice, Lessee may, within ten (10) days thereafter, give
written notice to Lessor of Lessee's commitment to pay the amount by which the
cost of the remediation of such Hazardous Substance Condition exceeds an amount
equal to twelve (12) times the then monthly Base Rent or $100,000, whichever is
greater. Lessee shall provide Lessor with said funds or satisfactory assurance
thereof within thirty (30) days following such commitment. In such event, this
Lease shall continue in full force and effect, and Lessor shall proceed to make
such remediation as soon as reasonably possible after the required funds are
available. If Lessee does not give such notice and provide the required funds or
assurance thereof within the time provided, this Lease shall terminate as of the
date specified in Lessor's notice of termination.

       6.3 LESSEE'S COMPLIANCE WITH APPLICABLE REQUIREMENTS. Except as otherwise
provided in this Lease, Lessee, shall at Lessee's sole expense, fully,
diligently and in a timely


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manner, materially comply with all Applicable Requirements, the requirements of
any applicable fire insurance underwriter or rating bureau, and the
recommendations of Lessor's engineers and/or consultants which relate in any
manner to the Premises, without regard to whether said requirements are now in
effect or become effective after the Start Date. Lessee shall, within ten (10)
days after receipt of Lessor's written request, provide Lessor with copies of
all permits and other documents, and other information evidencing Lessee's
compliance with any Applicable Requirements specified by Lessor, and shall
immediately upon receipt, notify Lessor in writing (with copies of any documents
involved) of any threatened or actual claim, notice, citation, warning,
complaint or report pertaining to or involving the failure of Lessee or the
Premises to comply with any Applicable Requirements.

       6.4 INSPECTION; COMPLIANCE. Lessor and Lessor's Lender and consultants
shall have the right to enter into the Premises at any time, in the case of an
emergency, and otherwise at reasonable times, for the purpose of inspecting the
condition of the Premises and for verifying compliance by Lessee with this
Lease. The cost of any such inspections shall be paid by Lessor, unless a
violation of Applicable Requirements, or a contamination is found to exist or be
imminent, or the inspection is requested or ordered by a governmental authority.
In such case, Lessee shall upon request reimburse Lessor for the cost of such
inspections, so long as such inspection is reasonably related to the violation
or contamination.

7.     MAINTENANCE; REPAIRS; UTILITY INSTALLATIONS; TRADE FIXTURES AND 
       ALTERATIONS.

       7.1     Lessee's Obligations.

               (A) IN GENERAL. Subject to the provisions of Paragraphs 2.2
(Condition), 2.3 (Compliance), 6.3 (Lessee's Compliance with Applicable
Requirements), 7.2 (Lessor's Obligations), 9 (Damage or Destruction), and 14
(Condemnation), Lessee shall, at Lessee's sole expense, keep the Premises,
Utility Installations, and Alterations in good order, condition and repair
(whether or not the portion of the Premises requiring repairs, or the means of
repairing the same, are reasonably or readily accessible to Lessee, and whether
or not the need for such repairs occurs as a result of Lessee's use, any prior
use, the elements or the age of such portion of the Premises), including, but
not limited to, all equipment or facilities such as plumbing, HVAC, electrical,
lighting facilities, boilers, pressure vessels, fire protection system,
fixtures, walls (interior and exterior), foundations, ceilings, roofs, floors,
windows, doors, plate glass, skylights, landscaping, driveways, parking lots,
fences, retaining walls, signs, sidewalks and parkways located in, on, or
adjacent to the Premises. Lessee, in keeping the Premises in good order,
condition and repair, shall exercise and perform good maintenance practices,
specifically including the procurement and maintenance of the service contracts
required by Paragraph 7.1(b) below. Lessee's obligations shall include
restorations, replacements or renewals when necessary to keep the Premises and
all improvements thereon or a part thereof in good order, condition and state of
repair. Lessee shall, during the term of this Lease, keep the exterior
appearance of the Building in a first-class condition consistent with the
exterior appearance of other similar facilities of comparable age and size in
the vicinity, including, when necessary, the exterior repainting of the
Building.



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       (B) SERVICE CONTRACTS. Lessee shall, at Lessee's sole expense, procure
and maintain contracts, with copies to Lessor, in customary form and substance
for, and with contractors specializing and experienced in the maintenance of the
following equipment and improvements, ("Basic Elements"), if any, as and when
installed on the Premises: (i) HVAC equipment, (ii) boiler, and pressure
vessels, (iii) fire protection systems, (iv) landscaping and irrigation systems,
(v) roof covering and drains, and (vi) asphalt and parking lots, (vii)
clarifiers and (viii) any other equipment, if reasonably required by Lessor.

       (C) REPLACEMENT. Subject to Lessee's indemnification of Lessor as set
forth in Paragraph 8.7 below, and without relieving Lessee of liability
resulting from Lessee' failure to exercise and perform good maintenance
practices, if the Basic Elements described in Paragraph 7.1(b) cannot be
repaired other than at a cost which is in excess of 50% of the cost of replacing
such Basic Elements, then such Basic Elements shall be replaced by Lessor, and
the cost thereof shall be prorated between the Parties and Lessee shall only be
obligated to pay, each month during the remainder of the term of this Lease, on
the date on which Base Rent is due, an amount equal to the product of
multiplying the cost of such replacement by a fraction, the numerator of which
is one, and the denominator of which is the number of months of the useful life
of such replacement as such useful life is specified pursuant to Federal income
tax regulations or guidelines for depreciation thereof (including interest on
the unamortized balance as is then commercially reasonable in the judgment of
Lessor's accountants), with Lessee reserving the right to prepay its obligation
at any time.

       7.2 LESSOR'S OBLIGATIONS. Subject to the provisions of Paragraphs 2.2
(Condition), 2.3 (Compliance), 9 (Damage or Destruction) and 14 (Condemnation),
it is intended by the Parties hereto that Lessor have no obligation, in any
manner whatsoever, to repair and maintain the Premises, or the equipment
therein, all of which obligations are intended to be that of the Lessee except
as provided in paragraphs 52 and 55 of Addendum. It is the intention of the
Parties that the terms of this Lease govern the respective obligations of the
Parties as to maintenance and repair of the Premises, and they expressly waive
the benefit of any statute now or hereafter in effect to the extent it is
inconsistent with the terms of this Lease.

       7.3     UTILITY INSTALLATIONS; TRADE FIXTURES; ALTERATIONS.

       (A) DEFINITIONS; CONSENT REQUIRED. The term "Utility Installations"
refers to all floor and window coverings, air lines, power panels, electrical
distribution, security and fire protection systems, communication systems,
lighting fixtures, HVAC equipment, plumbing, and fencing in or on the Premises.
The term "Trade Fixtures" shall mean Lessee's machinery and equipment that can
be removed without doing material damage to the Premises. The term "Alterations"
shall mean any modification of the improvements, other than Utility
Installations or Trade Fixtures, whether by addition or deletion. "Lessee Owned
Alterations and/or Utility Installations" are defined as Alterations and/or
Utility Installations made by Lessee that are not yet owned by Lessor pursuant
to Paragraph 7.4(a). Lessee shall not make any Alterations or Utility
Installations to the Premises without Lessor's prior written consent. Lessee
may, however, make non-structural Utility Installations to the interior of the
Premises (excluding the roof) without such consent but upon notice to Lessor, as
long as they are not visible from the outside, do not involve


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puncturing, relocating or removing the roof or any existing walls, and the
cumulative cost thereof during this Lease as extended does not exceed $50,000 in
the aggregate or $10,000 in any one year.

       (B) CONSENT. Any Alterations or Utility Installations that Lessee shall
desire to make and which require the consent of the Lessor shall be presented to
Lessor in written form with detailed plans. Consent shall be deemed conditioned
upon Lessee's: (i) acquiring all applicable governmental permits: (ii)
furnishing Lessor with copies of both the permits and the plans and
specifications prior to commencement of the work, and (iii) compliance with all
conditions of said permits and other Applicable Requirements in a prompt and
expeditious manner. Any Alterations or Utility Installations shall be performed
in a workmanlike manner with good and sufficient materials. Lessee shall
promptly upon completion furnish Lessor with as-built plans and specifications.
For work which costs an amount equal to the greater of one month's Base Rent, or
$10,000, Lessor may condition its consent upon Lessee providing a lien and
completion bond in an amount equal to one and one-half times the estimated cost
of such Alteration or Utility Installation and/or upon Lessee' posting an
additional Security Deposit with Lessor.

       (C) INDEMNIFICATION. Lessee shall pay, when due, all claims for labor or
materials furnished or alleged to have been furnished to or for Lessee at or for
use on the Premises, which claims are or may be secured by any mechanic's or
materialsmen's lien against the Premises or any interest therein. Lessee shall
give Lessor not less than ten (10) days' notice prior to the commencement of any
work in, on or about the Premises, and Lessor shall have the right to post
notices of non-responsibility. If Lessee shall contest the validity of any such
lien, claim or demand, then Lessee shall, at its sole expense defend and protect
itself, Lessor and the Premises against the same and shall pay and satisfy any
such adverse judgment that may be rendered thereon before the enforcement
thereof. If Lessor shall require, Lessee shall furnish a surety bond in an
amount equal to one and one-half times the amount of such contested lien, claim
or demand, indemnifying Lessor against liability for the same. If Lessor elects
to participate in any such action, Lessee shall pay Lessor's attorneys' fees and
costs.

       7.4     OWNERSHIP; REMOVAL; SURRENDER; AND RESTORATION.

       (A) OWNERSHIP. Subject to Lessor's right to require removal or elect
ownership as hereinafter provided, all Alterations and Utility Installations
made by Lessee shall be the property of Lessee, but considered a part of the
Premises. Lessor may, at any time, elect in writing to be the owner of all or
any specified part of the Lessee Owned Alterations and Utility Installations.
Unless otherwise instructed per Paragraph 7.4(b) hereof, all Lessee Owned
Alterations and Utility Installations shall, at the expiration or termination of
this Lease, become the property of Lessor and be surrendered by Lessee with the
Premises.

       (B) REMOVAL. By delivery to Lessee of written notice from Lessor not
later than ninety (90) days prior to the end of the term of this Lease, Lessor
may require that any or all Lessee Owned Alterations or Utility Installations or
tenant improvements other than initial improvements (i.e., new carpet, tile and
paint) be removed by the expiration or termination of this Lease. Lessor may
require the removal at any time of all or any part of any Lessee Owned
Alterations


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<PAGE>   12

or Utility Installations, or tenant improvements other than initial improvements
made without the required consent.

       (C) SURRENDER/RESTORATION. Lessee shall surrender the Premises by the
Expiration Date or any earlier termination date, with all of the improvements,
parts and surfaces thereof broom clean and free of debris, and in good operating
order, condition and state of repair, ordinary wear and tear excepted. "Ordinary
wear and tear" shall not include any damage or deterioration that would have
been prevented by good maintenance practice. Lessee shall repair any damage
occasioned by the installation, maintenance or removal of Trade Fixtures,
furnishings, and equipment as well as the removal of any storage tank installed
by or for Lessee, and the removal, replacement, or remediation of any soil,
material or groundwater contaminated by Lessee. Trade Fixtures shall remain the
property of Lessee and shall be removed by Lessee. The failure by Lessee to
timely vacate the Premises pursuant to this Paragraph 7.4(c) without the express
written consent of Lessor shall constitute a holdover under the provisions of
Paragraph 26 below.

8.     INSURANCE; INDEMNITY.

       8.1 PAYMENT FOR INSURANCE. Lessee shall pay for all insurance required
under Paragraph 8 except to the extent of the cost attributable to liability
insurance carried by Lessor under Paragraph 8.2(b) in excess of $2,000,000 per
occurrence. Premiums for policy periods commencing prior to or extending beyond
the Lease term shall be prorated to correspond to the Lease term. Payment shall
be made by Lessee to Lessor within ten (10) days following receipt of an
invoice.

       8.2     LIABILITY INSURANCE.

       (A) CARRIED BY LESSEE. Lessee shall obtain and keep in force a Commercial
General Liability Policy of Insurance protecting Lessee and Lessor against
claims for bodily injury, personal injury and property damage based upon or
arising out of the ownership, use, occupancy or maintenance of the Premises and
all areas appurtenant thereto. Such insurance shall be on an occurrence basis
providing single limit coverage in an amount not less than $2,000,000 per
occurrence with an "Additional Insured-Managers or Lessors of Premises
Endorsement' and contain the "Amendment of the Pollution Exclusion Endorsement"
for damage caused by heat, smoke or fumes from a hostile fire. The Policy shall
not contain any intra-insured exclusions as between insured persons or
organizations, but shall include coverage for liability assumed under this Lease
as an "insured contract" for the performance of Lessee's indemnity obligations
under this Lease. The limits of said insurance shall not, however, limit the
liability of Lessee nor relieve Lessee of any obligations hereunder. All
insurance carried by Lessee shall be primary to and not contributory with any
similar insurance carried by Lessor, whose insurance shall be considered excess
insurance only.

               (B) CARRIED BY LESSOR. Lessor shall maintain liability insurance
as described in Paragraph 8.2(a), in addition to, and not in lieu of, the
insurance required to be maintained by Lessee. Lessee shall not be named as an
additional insured therein.



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<PAGE>   13

       8.3     PROPERTY INSURANCE - BUILDING, IMPROVEMENTS AND RENTAL VALUE.

               (A) BUILDING AND IMPROVEMENTS. The Insuring Party shall obtain
and keep in force a policy or policies in the name of Lessor, with loss payable
to Lessor and to any Lender insuring loss or damage to the Premises. The amount
of such insurance shall be equal to the full replacement cost of the Premises,
as the same shall exist from time to time, or the amount required by any
Lenders, but in no event more than the commercially reasonable and available
insurable value thereof. If Lessor is the Insuring Party, however, Lessee Owned
Alterations and Utility Installations, Trade Fixtures, and Lessee's personal
property shall be insured by Lessee under Paragraph 8.4 rather than by Lessor.
If the coverage is available and commercially appropriate, such policy or
policies shall insure against all risks of direct physical loss or damage
(except the perils of flood and/or earthquake unless required by a Lender),
including coverage for debris removal and the enforcement of any Applicable
Requirements requiring the upgrading, demolition, reconstruction or replacement
of any portion of the Premises as the result of a covered loss. Said policy or
policies shall also contain an agreed valuation provision in lieu of any
coinsurance clause, waiver of subrogation, and inflation guard protection
causing an increase in the annual property insurance coverage amount by a factor
of not less than the adjusted U.S. Department of Labor Consumer Price Index for
All Urban Consumers for the city nearest to where the Premises are located. If
such insurance coverage has a deductible clause, the deductible amount shall not
exceed $10,000 per occurrence, and Lessee shall be liable for such deductible
amount in the event of an Insured Loss.

               (B) RENTAL VALUE. The Insuring Party shall obtain and keep in
force a policy or policies in the name of Lessor with loss payable to Lessor and
any Lender, insuring the loss of the full Rent for one (1) year. Said insurance
shall provide that in the event the Lease is terminated by reason of an insured
loss, the period of indemnity for such coverage shall be extended beyond the
date of the completion of repairs or replacement of the Premises, to provide for
one full year's loss of Rent from the date of any such loss. Said insurance
shall contain an agreed valuation provision in lieu of any coinsurance clause,
and the amount of coverage shall be adjusted annually to reflect the projected
Rent otherwise payable by Lessee, for the next twelve (12) month period. Lessee
shall be liable for any deductible amount in the event of such loss.

               (C) ADJACENT PREMISES. If the Premises are part of a larger
building, or of a group of buildings owned by Lessor which are adjacent to the
Premises, the Lessee shall pay for any increase in the premiums for the property
insurance of such building or buildings if said increase is caused by Lessee's
acts, omissions, use or occupancy of the Premises.

       8.4     LESSEE'S PROPERTY/BUSINESS INTERRUPTION INSURANCE.

               (A) PROPERTY DAMAGE. Lessee shall obtain and maintain insurance
coverage on all of Lessee's personal property, Trade Fixtures, and Lessee Owned
Alterations and Utility Installations. Such insurance shall be full replacement
cost coverage with a deductible of not to exceed $10,000 per occurrence. The
proceeds from any such insurance shall be used by Lessee for the replacement of
personal property, Trade Fixtures and Lessee Owned Alterations and


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<PAGE>   14

Utility Installations. Lessee shall provide Lessor with written evidence that
such insurance is in force.

               (B) BUSINESS INTERRUPTION. If reasonably available, and if Lessor
requests Lessee to do so in writing, Lessee shall obtain and maintain loss of
income and extra expense insurance in amounts as will reimburse Lessee for
direct or indirect loss of earnings attributable to all perils commonly insured
against by prudent lessees in the business of Lessee or attributable to
prevention of access to the Premises as a result of such perils.

               (C) NO REPRESENTATION OF ADEQUATE COVERAGE. Lessor makes no
representation that the limits or forms of coverage of insurance specified
herein are adequate to cover Lessee's property, business operations or
obligations under this Lease.

       8.5 INSURANCE POLICIES. Insurance required herein shall be by companies
duly licensed or admitted to transact business in the state where the Premises
are located, and maintaining during the policy term a "General Policyholders
Rating" of at least B+, V, as set forth in the most current issue of "Best's
Insurance Guide", or such other rating as may be required by a Lender, Lessee
shall not do or permit to be done anything which invalidates the required
insurance policies. Lessee shall, prior to the start Date, deliver to Lessor
certified copies of policies of such insurance or certificates evidencing the
existence and amounts of the required insurance. No such policy shall be
cancelable or subject to modification except after thirty (30) days prior to
Lessor. Lessee shall, at least thirty (30) days prior to the expiration of such
policies, furnish Lessor with evidence of renewals or "insurance binders"
evidencing renewal thereof, or Lessor may order such insurance and charge the
cost thereof to Lessee, which amount shall be payable by Lessee to Lessor upon
demand. Such policies shall be for a term of at least one year, or the length of
the remaining term of this Lease, whichever is less. If either Party shall fail
to procure and maintain the insurance required to be carried by it, the other
Party may, but shall not be required to, procure and maintain the same.

       8.6 WAIVER OF SUBROGATION. Without affecting any other rights or
remedies, Lessee and Lessor each hereby release and relieve the other, and waive
their entire right to recover damages against the other, for loss of or damage
to its property arising out of or incident to the perils required to be insured
against herein. The effect of such releases and waivers is not limited by the
amount of insurance carried or required, or by any deductibles applicable
hereto. The Parties agree to have their respective property damage insurance
carriers waive any right to subrogation that such companies may have against
Lessor or Lessee, as the case may be, so long as the insurance is not
invalidated thereby.

       8.7 INDEMNITY. Except for Lessor's sole negligence, Lessee shall
indemnify, protect, defend and hold harmless the Premises, Lessor and its
agents, Lessor's master or ground lessor, partners and Lenders, from and against
any and all claims, loss of rents and/or damages, liens, judgments, penalties,
attorneys and consultants fees, expenses and/or liabilities arising out of,
involving, or in connection with, the use and/or occupancy of the Premises by
Lessee. If any action or proceeding is brought against Lessor by reason of any
of the foregoing matters, Lessee shall upon notice defend the same at Lessee's
expense by counsel reasonably satisfactory to


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<PAGE>   15

Lessor and Lessor shall cooperate with Lessee in such defense. Lessor need not
have first paid any such claim in order to be defended or indemnified.

       8.8 EXEMPTION OF LESSOR FROM LIABILITY. Lessor shall not be liable for
injury or damage to the person or goods, wares, merchandise or other property of
Lessee, Lessee's employees, contractors, invitees, customers, or any other
person in or about the Premises, whether such damage or injury is caused by or
results from fire, steam, electricity, gas, water or rain, or from the breakage,
leakage, obstruction or other defects of pipes, fire sprinklers, wires,
appliances, plumbing, HVAC or lighting fixtures, or from any other cause,
whether the said injury or damage results from conditions arising upon the
Premises or upon other portions of the Building of which the Premises are a part
or from other sources or places. Lessor shall not be liable for any damages
arising from any act or neglect of any other tenant of Lessor. Notwithstanding
Lessor's negligence or breach of this Lease, Lessor shall under no circumstances
be liable for injury to Lessee's business or for any loss of income or profit
therefrom.

9.  DAMAGE OR DESTRUCTION.

       9.1     DEFINITIONS.

               (A) "PREMISES PARTIAL DAMAGE" shall mean damage or destruction to
the improvements on the Premises, other than Lessee Owned Alterations and
Utility Installations, which can reasonably be repaired in six (6) months or
less from the date of the damage or destruction. Lessor shall notify Lessee in
writing within thirty (30) days from the date of the damage or destruction as to
whether or not the damage is Partial or Total.

               (B) "PREMISES TOTAL DESTRUCTION" shall mean damage or destruction
to the Premises, other than Lessee Owned Alterations and Utility Installations,
which cannot reasonably be repaired in six (6) months or less from the date of
the damage or destruction. Lessor shall notify Lessee in writing within thirty
(30) days from the date of the damage or destruction as to whether or not the
damage is Partial or Total.

               (C) "INSURED LOSS" shall mean damage or destruction to
improvements on the Premises, other than Lessee Owned Alterations and Utility
Installations and Trade Fixtures, which was caused by an event required to be
covered by the insurance described in Paragraph 8.3(a).
respective of any deductible amounts or coverage limits involved.

               (D) "REPLACEMENT COST" shall mean the cost to repair or rebuild
the improvements owned by Lessor at the time of the occurrence to their
condition existing immediately prior thereto, including demolition, debris
removal and upgrading required by the operation of Applicable Requirements, and
without deduction for depreciation.

               (E) "HAZARDOUS SUBSTANCE CONDITION" shall mean the occurrence or
discovery of a condition involving the presence of, or a contamination by, a
Hazardous Substance as defined in Paragraph 6.2(a), in, on, or under the
Premises.



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<PAGE>   16

       9.2 PARTIAL DAMAGE - INSURED LOSS. If a Premises Partial Damage that is
an Insured Loss occurs, then Lessor shall, at Lessor's expense, repair such
damage (but not Lessee's Trade Fixtures or Lessee Owned Alterations and Utility
Installations) as soon as reasonably possible and this Lease shall continue in
full force and effect; provided, however, that Lessee shall, at Lessor's
election, make the repair of any damage or destruction the total cost to repair
of which is $10,000 or less, and, in such event, Lessor shall make any
applicable insurance proceeds available to Lessee on a reasonable basis for that
purpose. Notwithstanding the foregoing, if the required insurance was not in
force or the insurance proceeds are not sufficient to effect such repair, the
Insuring Party shall promptly contribute the shortage in proceeds (except as to
the deductible which is Lessee's responsibility) as and when required to
complete said repairs. In the event, however, such shortage was due to the fact
that, by reason of the unique nature of the improvements, full replacement cost
insurance coverage was not commercially reasonable and available, Lessor shall
have no obligation to pay for the shortage in insurance proceeds or to fully
restore the unique aspects of the Premises unless Lessee provides Lessor with
the funds to cover the same, or adequate assurance thereof, within ten (10) days
following receipt of written notice of such shortage and request therefor. If
Lessor receives said funds or adequate assurance thereof within said then (10)
day period, the party responsible for making the repairs shall complete them as
soon as reasonably possible and this Lease shall remain in full force and
effect. If such funds or assurance are not received, Lessor may nevertheless
elect by written notice to Lessee within ten (10) days thereafter to: (i) make
such restoration and repair as is commercially reasonable with Lessor paying any
shortage in proceeds, in which case this Lease shall remain in full force and
effect, or have this Lease terminate thirty (30) days thereafter. Lessee shall
not be entitled to reimbursement of any funds contributed by Lessee to repair
any such damages or destruction. Premises Partial Damage due to flood or
earthquake shall be subject to Paragraph 9.3, notwithstanding that there may be
some insurance coverage, but the net proceeds of any such insurance shall be
made available for the repairs if made by either Party.

       9.3 PARTIAL DAMAGE - UNINSURED LOSS. If a Premises Partial Damage that is
not an Insured Loss occurs, unless caused by a negligent or willful act of
Lessee (in which event Lessee shall make the repairs at Lessee's expense),
Lessor may either: (i) repair such damages as soon as reasonably possible at
Lessor's expense, in which this Lease shall continue in full force and effect,
or (ii) terminate this Lease by giving written notice to Lessee within thirty
(30) days after receipt by Lessor of knowledge of the occurrence of such damage.
Such termination shall be effective sixty (60) days following the date of such
notice. In the event Lessor elects to terminate this Lease, Lessee shall have
the right within ten (10) days after receipt of the termination notice to give
written notice to Lessor of Lessee's commitment to pay for the repair of such
damage without reimbursement from Lessor. Lessee shall provide Lessor with said
funds or satisfactory assurance thereof within thirty (30) days after making
such commitment. In such event this Lease shall continue in full force and
effect, and Lessor shall proceed to make such repairs as soon as reasonably
possible after the required funds are available. If Lessee does not make the
required commitment, this Lease shall terminate as of the date specified in the
termination notice.

       9.4 TOTAL DESTRUCTION. Notwithstanding any other provision hereof, if a
Premises Total Destruction occurs, this Lease shall terminate sixty (60) days
following such Destruction. If the damage or destruction was caused by the gross
negligence or willful misconduct of Lessee,


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<PAGE>   17

Lessor shall have the right to recover Lessor's damages from Lessee except as
provided in Paragraph 8.6.

       9.5 DAMAGE NEAR END OF TERM. If at any time during the last six (6)
months of this Lease there is damage for which the cost to repair exceeds one
(1) month's Base Rent, whether or not an Insured Loss, Lessor may terminate this
Lease effective sixty (60) days following the date of occurrence of such damage
by giving a written termination notice to Lessee within thirty (30) days after
the date of occurrence of such damage. Notwithstanding the foregoing, if Lessee
at that time has an exercisable option to extend this Lease or to purchase the
Premises, then Lessee may preserve this Lease by, (a) exercising such option and
(b) providing Lessor with any shortage in insurance proceeds (or adequate
assurance thereof) needed to make the repairs on or before the earlier of (i)
the date which is ten days after Lessee's receipt of Lessor's written notice
purporting to terminate this Lease, or (ii) the day prior to the date upon which
such option expires. If Lessee duly exercises such option during such period and
provides Lessor with funds (or adequate assurance thereof) to cover any shortage
in insurance proceeds, Lessor shall, at Lessor's commercially reasonable
expense, repair such damage as soon as reasonably possible and this Lease shall
continue in full force and effect. If Lessee fails to exercise such option and
provide such funds or assurance during such period, then this Lease shall
terminate on the date specified in the termination notice and Lessee's option
shall be extinguished.

       9.6     ABATEMENT OF RENT; LESSEE'S REMEDIES.

               (A) ABATEMENT. In the event of Premises Partial Damage or
Premises Total Destruction or a Hazardous Substance Condition for which Lessee
is not responsible under this Lease, the Rent payable by Lessee for the period
required for the repair, remediation or restoration of such damage shall be
abated in proportion to the degree to which Lessee's use of the Premises is
impaired, but not to exceed the proceeds received from the Rental Value
insurance. All other obligations of Lessee hereunder shall be performed by
Lessee, and Lessor shall have no liability for any such damage, destruction,
remediation, repair or restoration except as provided herein.

               (B) REMEDIES. If Lessor shall be obligated to repair or restore
the Premises and does not commence, in a substantial and meaningful way, such
repair or restoration within ninety (90) days after such obligation shall
accrue, Lessee may, at any time prior to the commencement of such repair or
restoration, give written notice to Lessor and to any Lenders of which Lessee
has actual notice, of Lessee's election to terminate this Lease on a date not
less than sixty (60) days following the giving of such notice. If Lessee gives
such notice and such repair or restoration is not commenced within thirty (30)
days thereafter, this Lease shall terminate as of the date specified in said
notice. If the repair or restoration is commenced within said thirty (30) days
thereafter, this Lease shall terminate as of the date specified in said notice.
If the repair or restoration is commenced within said thirty (30) days, this
Lease shall continue in full force and effect. "Commence" shall mean either the
unconditional authorization of the preparation of the required plans, or the
beginning of the actual work on the Premises, whichever first occurs.



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<PAGE>   18

       9.7 TERMINATION-ADVANCE PAYMENTS. Upon termination of this Lease pursuant
to Paragraph 6.2(g) or Paragraph 9, an equitable adjustment shall be made
concerning advance Base Rent and any other advance payments made by Lessee to
Lessor. Lessor shall, in addition, return to Lessee so much of Lessee's Security
Deposit as has not been, or is not then required to be, used by Lessor.

       9.8 WAIVE STATUTES. Lessor and Lessee agree that the terms of this Lease
shall govern the effect of any damage to or destruction of the Premises with
respect to the termination of this Lease and hereby waive the provisions of any
present or future statute to the extent inconsistent herewith.

10.    REAL PROPERTY TAXES.

       10.1 DEFINITION OF "REAL PROPERTY TAXES." As used herein, the term "Real
Property Taxes" shall include any form of assessment; real estate, general,
special, ordinary or extraordinary, or rental levy or tax (other than
inheritance, personal income or estate taxes); improvement bond; and/or license
fee imposed upon or levied against any legal or equitable interest of Lessor in
the Premises, Lessor's right to other income therefrom, and/or Lessor's business
of leasing, by any authority having the direct or indirect power to tax and
where the funds are generated with reference to the building address and where
the proceeds so generated are to be applied by the city, county or other local
taxing authority of a jurisdiction within which the Premises are located. The
term "Real Property Taxes" shall also include any tax, fee, levy, assessment or
charge, or any increase therein, imposed by reason of events occurring during
the term of this Lease, including but not limited to, a change in the ownership
of the Premises.

       10.2

               (A) PAYMENT OF TAXES. Lessee shall pay the Real Property Taxes
applicable to the Premises during the term of this Lease. Subject to Paragraph
10.2(b), all such payments shall be made at least ten (10) days prior to any
delinquency date. Lessee shall promptly furnish Lessor with satisfactory
evidence that such taxes have been paid. If any such taxes shall cover any
period of time prior to or after the expiration or termination of this Lease,
Lessee's share of such taxes shall be prorated to cover only that portion of the
tax bill applicable to the period that this Lease is in effect, and Lessor shall
reimburse Lessee for any overpayment. If Lessee shall fail to pay any required
Real Property Taxes, Lessor shall have the right to pay the same, and Lessee
shall reimburse Lessor therefor upon demand.

               (B) ADVANCE PAYMENT. In the event Lessee incurs a late charge on
any Rent payment, Lessor may, at Lessor's option, estimate the current Real
Property Taxes, and require that such taxes be paid in advance to Lessor by
Lessee, either: (i) in a lump sum amount equal to the installment due, at least
twenty (20) days prior to the applicable delinquency date, or (ii) monthly in
advance with the payment of the Base Rent. If Lessor elects to require payment
monthly in advance, the monthly payment shall be an amount equal to the amount
of the estimated installment of taxes divided by the number of months remaining
before the month in which said installment becomes delinquent. When the actual
amount of the applicable tax bill


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<PAGE>   19

is known, the amount of such equal monthly advance payments shall be adjusted as
required to provide the funds needed to pay the applicable taxes. If the amount
collected by Lessor is insufficient pay such Real Property Taxes when due,
Lessee shall pay Lessor, upon demand such additional sums as are necessary to
pay such obligations. All moneys paid to Lessor under this Paragraph may be
intermingled with other moneys of Lessor and shall not bear interest. In the
event of a Breach by Lessee in the performance of its obligations under this
Lease, then an balance of funds paid to Lessor under the provisions of this
Paragraph may at the option of Lessor, be treated as an additional Security
Deposit.

       10.3 JOINT ASSESSMENT. If the Premisses are not separately assessed,
Lessee's liability shall be an equitable proportion of the Real Property Taxes
for all of the land and improvements included within the tax parcel assessed,
such proportion to be conclusively determined by Lessor from the respective
valuations assigned in the assessor's work sheets or such other information as
may be reasonably available.

       10.4 PERSONAL PROPERTY TAXES. Lessee shall pay, prior to delinquency, all
taxes assessed against and levied upon Lessee Owned Alterations, Utility
Installations, Trade Fixtures, furnishings, equipment and all personal property
Lessee. When possible, Lessee shall cause such property to be assessed and
billed separately from the real property of Lessor. If any of Lessee's said
personal property shall be assessed with Lessor's real property, Lessee shall
pay Lessor the taxes attributable to Lessee's property within ten (10) days
after receipt of a written statement.

11. UTILITIES. Lessee shall pay for all water, gas, heat, light, power,
telephone, trash disposal and other utilities and services supplied to the
Premises, together with any taxes thereon. If any such services are not
separately metered to Lessee, Lessee shall pay a reasonable proportion, to be
determined by Lessor, of all charges jointly metered.

12.    ASSIGNMENT AND SUBLETTING.

       12.1    LESSOR'S CONSENT REQUIRED.

               (A) Lessee shall not voluntarily or by operation of law assign,
transfer, mortgage or encumber (collectively, "assign or assignment") or sublet
all or any part of Lessee's interest in this Lease or in the Premises without
Lessor's prior written consent.

               (B) A change in the control of Lessee shall constitute an
assignment requiring consent. The transfer, on a cumulative basis, of
twenty-five percent (25%) or more of the voting control of Lessee shall
constitute a change in control for this purpose.

               (C) The involvement of Lessee or its assets in any transaction,
or series of transactions (by way of merger, sale, acquisition, financing,
transfer, leveraged buy-out or otherwise), whether or not a formal assignment or
hypothecation of this Lease or Lessee's assets occurs, which results or will
result in a reduction of the Net Worth of Lessee by an amount greater than
twenty-five percent (25%) of such Net Worth as it was represented at the time of
the execution of this Lease or at the time of the most recent assignment to
which Lessor has


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<PAGE>   20

consented, or as it exists immediately prior to said transaction or transactions
constituting such reduction, whichever was or is greater, shall be considered an
assignment of this Lease to which Lessor may withhold its consent. "Net Worth of
Lessee" shall mean the net worth of Lessee (excluding any guarantors)
established under generally accepted accounting principles.*

               (D) An assignment or subletting without consent shall, at
Lessor's option, be a Default curable after notice per Paragraph 13.1(c), or a
noncurable Breach without the necessity of any notice and grace period. If
Lessor elects to treat such unapproved assignment or subletting as a noncurable
Breach, Lessor may either; (i) terminate this Lease, or (ii) upon thirty (30)
days written notice, increase the monthly Base Rent to one hundred ten percent
(110%) of the Base Rent then in effect. Further, in the event of such Breach and
rental adjustment, (i) the purchase price of any option to purchase the Premises
held by Lessee shall be subject to similar adjustment to one hundred ten percent
(110%) of the price previously in effect, and (iii) all fixed and non-fixed
rental adjustments scheduled during the remainder of the Lease term shall be
increased to One Hundred Ten Percent (110%) of the scheduled adjusted rent.

               (E) Lessee's remedy for any breach of Paragraph 12.1 by Lessor
shall be limited to compensatory damages and/or injunctive relief.

       12.2.   TERMS AND CONDITIONS APPLICABLE TO ASSIGNMENT AND SUBLETTING.

               (A) Regardless of Lessor's consent, any assignment or subletting
shall not: (i) be effective without the express written assumption by such
assignee or sublessee of the obligations of Lessee under this Lease, (ii)
release Lessee of any obligations hereunder, or (iii) alter the primary
liability of Lessee for the payment of Rent or for the performance of any other
obligations to be performed by Lessee.

               (B) Lessor may accept Rent or performance of Lessee's obligations
from any person other than Lessee pending approval or disapproval of an
assignment. Neither a delay in the approval or disapproval of such assignment
nor the acceptance of Rent or performance shall constitute a waiver or estoppel
of Lessor's right to exercise its remedies for Lessee's Default or Breach.

               (C) Lessor's consent to any assignment or subletting shall not
constitute a consent to any subsequent assignment or subletting.

               (D) In the event of any Default or Breach by Lessee, Lessor may
proceed directly against Lessee, any Guarantors or anyone else responsible for
the performance of Lessee's obligations under this Lease, including any assignee
or sublessee, without first


--------
*Notwithstanding anything contained herein, Lessee shall have the right to
assign this lease to any affiliated entity ("defined as any entity in which
Lessee maintains at least a 50% ownership interest") or to any entity with which
Lessee may merge or consolidate.



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<PAGE>   21

exhausting Lessor's remedies against any other person or entity responsible
therefore to Lessor, or any security held by Lessor.

               (E) Each request for consent to an assignment or subletting shall
be in writing, accompanied by information relevant to Lessor's determination as
to the financial and operational responsibility and appropriateness of the
proposed assignee or sublessee, including but not limited to the intended use
and/or required modification of the Premises, if any, together with a fee of
$1,000 or ten percent (10%) of the current monthly Base Rend applicable to the
portion of the Premises which is the subject of the proposed assignment or
sublease, whichever is greater, as consideration for Lessor's considering and
processing said request. Lessee agrees to provide Lessor with such other or
additional information and/or documentation as may be reasonably requested.

               (F) Any assignee of, or sublessee under, this Lease shall, by
reason of accepting such assignment or entering into such sublease be deemed to
have assumed an agreed to conform and comply with each and every term, covenant,
condition and obligation herein to be observed or performed by Lessee during the
term of said assignment or sublease, other than such obligations as are contrary
to or inconsistent with provisions of an assignment or sublease to which Lessor
has specifically consented to in writing.

       12.3 ADDITIONAL TERMS AND CONDITIONS APPLIANCE TO SUBLETTING. The
following terms and conditions shall apply to any subletting by Lessee of all or
any part of the Premises and shall be deemed included in all subleases under
this Lease whether or not expressly incorporated therein:

               (A) Lessee hereby assigns and transfers to Lessor all of Lessee's
interest in all Rent payable on any sublease, and Lessor may collect such Rent
and apply same toward Lessee's obligations under this Lease; provided, however,
that until a Breach shall occur in the performance of Lessee's obligations,
Lessee may collect said Rent. Lessor shall not, by reason of the foregoing or
any assignment of such sublease, nor by reason of the collection of Rent, be
deemed liable to the sublessee for any failure of Lessee to perform and comply
with any of Lessee's obligations to such sublessee. Lessee shall rely upon any
such notice from Lessor and shall pay all Rents to Lessor without any obligation
or right to inquire as to whether such Breach exits, notwithstanding any claim
from Lessee to the contrary.

               (B) In the event of a Breach by Lessee, Lessor may, at its
option, require sublessee to attorn to Lessor, in which event Lessor shall
undertake the obligations of the sublessor under such sublease from the time of
the exercise of said option to the expiration of such sublease; provided,
however, Lessor shall not be liable for any prepaid rents or security deposit
paid by such sublessee to such sublessor or for any prior Defaults or Breaches
of such sublessor.

               (C) Any matter requiring the consent of the sublessor under a
sublease shall also require the consent of Lessor.



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<PAGE>   22

               (D) No sublessee shall further assign or sublet all or any part
of the Premises without Lessor's prior written consent.

               (E) Lessor shall deliver a copy of any notice of default or
Breach by Lessee to the sublessee, who shall have the right to cure the Default
of Lessee within the space period, if any, specified in such notice. The
sublessee shall have a right of reimbursement and offset from and against Lessee
for any such Defaults cured by the sublessee.

13.  DEFAULT; BREACH, REMEDIES.

       13.1 DEFAULT; BREACH. A "Default" is defined as a failure by the Lessee
to comply with or perform any of the terms, covenants, conditions or rules under
this Lease. A "Breach" is defined as the occurrence of one or more of the
following Defaults, and the failure of Lessee to cure such Default within any
applicable grace period:

               (A) The abandonment of the Premises; or the vacating of the
Premises without providing a commercially reasonable level of security, or where
the coverage of the property insurance described in Paragraph 8.3 is jeopardized
as a result thereof, or without providing reasonable assurances to minimize
potential vandalism.

               (B) The failure of Lessee to make any payment of Rent or any
other monetary payment required to be made by Lessee hereunder, whether to
Lessor or to a third party, when due, to provide reasonable evidence of
insurance or surety bond, or to fulfill any obligation under this Lease which
endangers or threatens life or property, where such failure continues for a
period of three (3) business days following written notice to Lessee.

               (C) The failure by Lessee to provide (i) reasonable written
evidence of compliance with Applicable Requirements, (ii) the service contracts,
(iii) the rescission of an unauthorized assignment or subletting, (iv) a Tenancy
Statement, (v) a requested subordination, (vi) evidence concerning any guaranty
and/or Guarantor, (vii) any document requested under Paragraph 42 (easements),
or (viii) any other documentation or information which Lessor may reasonably
require of Lessee under the terms of this Lease, where any such failure
continues for a period of ten (10) days following written notice to Lessee.

               (D) A Default by Lessee as to the terms covenants, conditions or
provisions of this Lease, or of the rules adopted under Paragraph 40 hereof,
other than those described in subparagraphs 13.1(a), (b) or (c), above, where
such Default continues for a period of thirty (30) days after written notice;
provided, however, that if the nature of Lessee's Default is such that more than
thirty (30) days are reasonably required for its cure, then it shall not be
deemed to be a Breach if Lessee commences such cure within said thirty (30) day
period and thereafter diligently prosecutes such cure to completion.

               (E) The occurrence of any of the following events: (i) the making
of any general arrangement or assignment for the benefit of creditors; (ii)
becoming a "debtor" as defined in 11 U.S.C. Section 101 or any successor statute
thereto (unless, in the case of a petition filed


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<PAGE>   23

against Lessee, the same is dismissed within sixty (60) days); (iii) the
appointment of a trustee or receiver to take possession of substantially all of
Lessee's assets located at the Premises or of Lessee's interest in this Lease,
where possession is not restored to Lessee within thirty (30) days; or (iv) the
attachment, execution or other judicial seizure of substantially all of Lessee's
assets located at the Premises or of Lessee's interest in this Lease, where such
seizure is not discharged within thirty (30) days; provided, however, in the
event that any provision of this subparagraph (e) is contrary to any applicable
law, such provision shall be of no force or effect, and not affect the validity
of the remaining provisions.

               (F) The discovery that any financial statement of Lessee or of
any Guarantor given to Lessor was materially false.

               (G) If the performance of Lessee's obligations under this Lease
is guaranteed: (i) the death of a Guarantor, (ii) the termination of a
Guarantor's liability with respect to this Lease other than in accordance with
the terms of such guaranty, (iii) a Guarantor's becoming insolvent or the
subject of a bankruptcy filing, (iv) a Guarantor's refusal to honor the
guaranty, or (v) a Guarantor's breach of its guaranty obligation on an
anticipatory basis, and Lessee's failure, within sixty (60) days following
written notice of any such event, to provide written alternative assurance or
security, which, when coupled with the then existing resources of Lessee, equals
or exceeds the combined financial resources of Lessee and the Guarantors that
existed at the time of execution of this Lease.

       13.2 REMEDIES. If Lessee fails to perform any of its affirmative duties
or obligations, within ten (10) days after written notice (or in case of an
emergency, without notice), Lessor may, at its option, perform such duty or
obligation on Lessee's behalf, including but not limited to the obtaining of
reasonably required bonds, insurance policies, or governmental licenses, permits
or approvals. The costs and expenses of any such performance by Lessor shall be
due and payable by Lessee upon receipt of invoice therefor. If any check given
to Lessor by Lessee shall not be honored by the bank upon which it is drawn,
Lessor, at its option, may require all future payments to be made by Lessee to
be by cashier's check. In the event of a Breach, Lessor may, with or without
further notice or demand, and without limiting Lessor in the exercise of any
right or remedy which Lessor may have by reason of such Breach:

               (A) Terminate Lessee's right to possession of the Premises by any
lawful means, in which case this Lease shall terminate and Lessee shall
immediately surrender possession to Lessor. In such event Lessor shall be
entitled to recover from Lessee: (i) the unpaid Rent which had been earned at
the time of termination; (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 the Lessee proves
could have been reasonably avoided; (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 the Lessee proves could be
reasonably avoided; and (iv) any other amount necessary to compensate Lessor for
all the detriment proximately caused by the Lessee's failure to perform its
obligations under this Lease or which in the ordinary course of things would be
likely to result therefrom, including but not limited to the cost of recovering
possession of the Premises,


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<PAGE>   24

expenses of reletting, including necessary renovation and alteration of the
Premises, reasonable attorneys' fees, and that portion of any leasing commission
paid by Lessor in connection with this Lease applicable to the unexpired term of
this Lease. The worth at the time of award of the amount referred to in
provision (iii) of the immediately preceding sentence shall be computed by
discounted such amount at the discount rate of the Federal Reserve Bank of the
District within which the Premises are located at the time of award plus one
percent (1%). Efforts by Lessor to mitigate damages caused by Lessee's Breach of
this Lease shall not waive Lessor's right to recover damages under Paragraph 12.
If termination of this Lease is obtained through the provisional remedy of
unlawful detainer, Lessor shall have the right to recover in such proceeding any
unpaid Rent and damages as are recoverable therein, or Lessor may reserve the
right to recover all or any part thereof in a separate suit. If a notice and
grace period required under Paragraph 13.1 was not previously given, a notice to
pay rent or quit, or to perform or quit given to Lessee under the unlawful
detainer statute shall also constitute the notice required by Paragraph 13.1. In
such case, the applicable grace period required by Paragraph 13.1 and the
unlawful detainer statutes hall run concurrently, and the failure of Lessee to
cure the Default within the greater of the two such grace periods shall
constitute both an unlawful detainer and a Breach of this Lease entitling Lessor
to the remedies provided for in this Lease and/or by said statute.

               (B) Continue the Lease and Lessee's right to possession and
recover the Rent as it becomes due, in which event Lessee may sublet or assign,
subject only to reasonable limitations. Acts of maintenance, efforts to relet,
and/or the appointment of a receiver to protect the Lessor's interests, shall
not constitute a termination of the Lessee's right to possession.

               (C) Pursue any other remedy now or hereafter available under the
laws or judicial decisions of the state wherein the Premises are located. The
expiration or termination of this Lease and/or the termination of Lessee's right
to possession shall not relieve Lessee from liability under any indemnity
provisions of this Lease as to matters occurring or accruing during the term
hereof or by reason of Lessee's occupancy of the Premises.

       13.3 INDUCEMENT RECAPTURE. Any agreement for free or abated rent or other
charges, or for the giving or paying by Lessor to or for Lessee of any cash or
other bonus, inducement or consideration for Lessee's entering into this Lease,
all of which concessions are herein after referred to as "INDUCEMENT
PROVISIONS," shall be deemed conditioned upon Lessee's full and faithful
performance of all of the terms, covenants and conditions of this Lease. Upon
Breach of this Lease by Lessee, any such Inducement Provision shall
automatically be deemed deleted from this Lease and of no further force or
effect, and any rent, other charge, bonus, inducement or consideration
theretofore abated, given or paid by Lessor under such an Inducement Provision
shall be immediately due and payable by Lessee to Lessor, notwithstanding any
subsequent cure of said Breach by Lessee. The acceptance by Lessor of rent or
the cure of the Breach which initiated the operation of this paragraph shall not
be deemed a waiver by Lessor of the provisions of this paragraph unless
specifically so stated in writing by Lessor at the time of such acceptance.

       13.4 LATE CHARGES. Lessee hereby acknowledges that late payment by Lessee
of Rent will cause Lessor to incur costs not contemplated by this Lease, the
exact amount of which will be extremely difficult to ascertain. Such costs
include, but are not limited to, processing and


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<PAGE>   25

accounting charges, and late charges which may be imposed upon Lessor by any
Lender. Accordingly, if any Rent shall not be received by Lessor within five (5)
days after such amount shall be due, then, without any requirement for notice to
Lessee, Lessee shall pay to Lessor a one-time late charge equal to ten percent
(10%) of each such overdue amount. The parties hereby agree that such late
charge represents a fair and reasonable estimate of the costs Lessor will incur
by reason of such late payment. Acceptance of such late charge by Lessor shall
in no event constitute a waiver of Lessee's Default or Breach with respect to
such overdue amount, nor prevent the exercise of any of the other rights and
remedies granted hereunder. In the event that a late charge is payable
hereunder, whether or not collected, for three (3) consecutive installments of
Base Rent, then notwithstanding any provision of this Lease to the contrary,
Base Rent shall, at Lessor's option, become due and payable quarterly in
advance.

       13.5 INTEREST. Any monetary payment due Lessor hereunder, other than late
charges, not received by Lessor within thirty (30) days following the date on
which it was due, shall bear interest from the thirty-first (31st) day after it
was due. The interest ("Interest") charged shall be equal to the prime rate
charged by the largest state chartered bank in the state in which the Premises
are located plus 4%, but shall not exceed the maximum rate allowed by law.
Interest is payable in addition to the potential late charge provided for in
Paragraph 13.4.

       13.6    BREACH OF LESSOR.

               (A) NOTICE OF BREACH. Lessor shall not be deemed in breach of
this Lease unless Lessor fails within a reasonable time to perform an obligation
required to be performed by Lessor. For purposes of this Paragraph, a reasonable
time shall in no event be less than thirty (30) days after receipt by Lessor,
and any Lender whose name and address shall have been furnished Lessee in
writing for such purpose, of written notice specifying wherein such obligation
of Lessor has not been performed; provided, however, that if the nature of
Lessor's obligation is such that more than thirty (30) days are reasonably
required for its performance, then Lessor shall not be in breach if performance
is commenced within such thirty (30) day period and thereafter diligently
pursued to completion.

               (B) PERFORMANCE BY LESSEE ON BEHALF OF LESSOR. In the event that
neither Lessor nor Lender cures said breach within thirty (30) days after
receipt of said notice, or if having commenced said cure they do not diligently
pursue it to completion, then Lessee may elect to cure said breach at Lessee's
expense and offset from Rent an amount equal to the greater of one month's Base
Rent or the Security Deposit, and to pay an excess of such expense under
protest, reserving Lessee's right to reimbursement from Lessor. Lessee shall
document the cost of said cure and supply said documentation to Lessor.

14. CONDEMNATION. If the Premises or any portion thereof are taken under the
power of eminent domain or sold under the threat of the exercise of said power
(collectively "CONDEMNATION"), this Lease shall terminate as to the part taken
as of the date the condemning authority takes title or possession, whichever
first occurs. If more than ten percent (10%) of any building, or more than
twenty-five percent (25%) of the land area not occupied by any building, is
taken by Condemnation, Lessee may, at Lessee's option, to be exercised in
writing within ten


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<PAGE>   26



(10) days after Lessor shall have given Lessee written notice of such taking (or
in the absence of such notice, within ten (10) days after the condemning
authority shall have taken possession) terminate this Lease as of the date the
condemning authority takes such possession. If Lessee does not terminate this
Lease in accordance with the foregoing, this Lease shall remain in full force
and effect as to the portion of the Premises remaining, except that the Base
Rent shall be reduced in proportion to the reduction in utility of the Premises
caused by such Condemnation. Condemnation awards and/or payments shall be the
property of Lessor, whether such award shall be made as compensation for
diminution in value of the leasehold, the value of the part taken, or for
severance damages; provided, however, that Lessee shall be entitled to any
compensation for Lessee's relocation expenses, loss of business goodwill and/or
Trade Fixtures, without regard to whether or not this Lease is terminated
pursuant to the provisions of this Paragraph. All alterations and Utility
Installations made to the Premises by Lessee, for purposes of Condemnation only,
shall be considered the property of the Lessee and Lessee shall be entitled to
any and all compensation which is payable therefor. In the event that this Lease
is not terminated by reason of the Condemnation, Lessor shall repair any damage
to the Premises caused by such Condemnation.

15.  BROKERS' FEE.

       15.1 ADDITIONAL COMMISSION. In addition to the payments owed pursuant to
Paragraph 1.10 above, and unless Lessor and the Brokers otherwise agree in
writing, Lessor agrees that: (a) if Lessee exercises any Option, (b) if Lessee
acquires any rights to the Premises or other premises owned by Lessor and
located within the same Project, if any, within which the Premises is located,
(c) if Lessee remains in possession of the Premises, with the consent of Lessor,
after the expiration of this Lease, or (d) if Base Rent is increased, whether by
agreement or operation of an escalation clause herein, then Lessor shall pay
Brokers a fee in accordance with the schedule of said Brokers in effect at the
time of the execution of this Lease.

       15.2 ASSUMPTION OF OBLIGATIONS. Any buyer or transferee of Lessor's
interest in this Lease shall be deemed to have assumed Lessor's obligation
hereunder. Each Broker shall be a third party beneficiary of the provisions of
Paragraphs 1.10, 15, 22 and 31. If Lessor fails to pay to a Broker any amounts
due as and for commissions pertaining to this Lease when due, then such amounts
shall accrue Interest. In addition, if Lessor fails to pay any amounts to
Lessee's Broker when due, Lessee's Broker may send written notice to Lessor and
Lessee of such failure and if Lessor fails to pay such amounts within ten (10)
days after said notice, Lessee shall pay said monies to its Broker and offset
such amounts against Rent. In addition, Lessee's Broker shall be deemed to be a
third party beneficiary of any commission agreement entered into by and/or
between Lessor and Lessor's Broker.

       15.3 REPRESENTATIONS AND INDEMNITIES OF BROKER RELATIONSHIPS. Lessee and
Lessor each represent and warrant to the other that it has had no dealings with
any person, firm, broker or finder (other than the Brokers, if any) in
connection with this Lease, and that no one other than said named Brokers is
entitled to any commission or finder's fee in connection herewith. Lessee and
Lessor do each hereby agree to indemnify, protect, defend and hold the other
harmless from and against liability for compensation or charges which may be
claimed by any such


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<PAGE>   27

unnamed broker, finder or other similar party by reason of any dealings or
actions of the indemnifying Party, including any costs, expenses, attorneys'
fees reasonably incurred with respect thereto.

16.  TENANCY STATEMENT/ESTOPPEL CERTIFICATE.

       16.1 Each Party (as "Responding Party") shall within ten (10) days after
written notice from the other Party (the "Requesting Party") execute,
acknowledge and deliver to the Requesting Party an estoppel certificate in
writing, in form similar to the then most current "Tenancy Statement" form
published by the American Industrial Real Estate Association, plus such
additional information, confirmation and/or statements as may be reasonably
requested by the Requesting Party.

       16.2 If Lessor desires to finance, refinance, or sell the Premises, or
any part thereof, Lessee and all Guarantors shall deliver to any potential
lender or purchaser designated by Lessor such financial statements as may be
reasonably required by such lender or purchaser, including but not limited to
Lessee's financial statements for the past three (3) years. All such financial
statements shall be received by Lessor and such lender or purchaser in
confidence and shall be used only for the purposes herein set forth.

17. DEFINITION OF LESSOR. The term "Lessor" as used herein shall mean the owner
or owners at the time in question of the fee title to the Premises, or, if this
is a sublease, of the Lessee's interest in the prior lease. In the event of a
transfer of Lessor's title or interest in the Premises or this Lease, Lessor
shall deliver to the transferee or assignee (in cash or by credit) any unused
Security Deposit held by Lessor. Except as provided in Paragraph 15, upon such
transfer or assignment and delivery of the Security Deposit, as aforesaid, the
prior Lessor shall be relieved of all liability with respect to the obligations
and/or covenants under this Lease thereafter to be performed by the Lessor.
Subject to the foregoing, the obligations and/or covenants in this Lease to be
performed by the Lessor shall be binding only upon the Lessor as hereinabove
defined. Notwithstanding the above, the original Lessor under this Lease, and
all subsequent holders of the Lessor's interest in this Lease shall remain
liable and responsible with regard to the potential duties and liabilities of
Lessor pertaining to Hazardous Substances as outlined in Paragraph 6 above.

18. SEVERABILITY. The invalidity of any provision of this Lease ,as determined
by a court of competent jurisdiction, shall in no way affect the validity of any
other provision hereof.

19. DAYS. Unless otherwise specifically indicated to the contrary, the word
"days" as used in this Lease shall mean and defer to calendar days.

20. LIMITATION ON LIABILITY. Except with respect to Lessor's fraud, gross
negligence or willful misconduct, the obligations of Lessor under this Lease
shall not constitute personal obligations of Lessor, the individual partners of
Lessor or its or their individual partners, directors, officers or shareholders,
and Lessee shall look to the Premises, and to no other assets of Lessor, for the
satisfaction of any liability of Lessor with respect to this Lease, and shall
not seek recourse


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<PAGE>   28

against the individual partners of Lessor, or its or their individual partners,
directors, officers or shareholders, or any of their personal assets for such
satisfaction.

21. TIME OF ESSENCE. Time is of the essence with respect to the performance of
all obligations to be performed or observed by the Parties under this Lease.

22. NO PRIOR OR OTHER AGREEMENTS; BROKER DISCLAIMER. This Lease contains all
agreements between the Parties with respect to any matter mentioned herein, and
no other prior or contemporaneous agreement or understanding shall be effective.
Lessor and Lessee each represents and warrants to the Brokers that it has made,
and is relying solely upon, its own investigation as to the nature, quality,
character and financial responsibility of the other Party to this Lease and as
to the nature, quality and character of the Premises. Brokers have no
responsibility with respect thereto or with respect to any default or breach
hereof by either Party. The liability (including court costs and Attorneys'
fees), of any Broker with respect to negotiation, execution, delivery or
performance by either Lessor or Lessee under this Lease or any amendment or
modification thereto shall be limited to an amount up to the fee received by
such Broker pursuant to this Lease; provided, however, that the foregoing
limitation on each Broker's liability shall not be applicable to any gross
negligence or willful misconduct of such Broker.

23.  NOTICES.

       23.1 NOTICE REQUIREMENTS. All notices required or permitted by this Lease
shall be in writing and may be delivered in person (by hand or by courier) or
may be sent by regular, certified or registered mail or U.S. Postal Service
Express Mail, with postage prepaid, or by facsimile transmission, and shall be
deemed sufficiently given if served in a manner specified in this Paragraph 23.
The addresses noted adjacent to a Party's signature on this Lease shall be that
Party's address for delivery or mailing of notices. Either Party may by written
notice to the other specify a different address for notice, except that upon
Lessee's taking possession of the Premises, the Premises shall constitute
Lessee's address for notice. A copy of all notices to Lessor shall be
concurrently transmitted to such party or parties at such addresses as Lessor
may from time to time hereafter designate in writing.

       23.2 DATE OF NOTICE. Any notice sent by registered or certified mail,
return receipt requested, shall be deemed given on the date of delivery shown on
the receipt card, or if no delivery date is shown, the postmark thereon. If sent
by regular mail the notice shall be deemed given forty-eight (48) hours after
the same is addressed as required herein and mailed with postage prepaid.
Notices delivered by United States Express Mail or overnight courier that
guarantee next day delivery shall be deemed given twenty-four (24) hours after
delivery of the same to the Postal Service or courier. Notices transmitted by
facsimile transmission or similar means shall be deemed delivered upon telephone
confirmation of receipt, provided a copy is also delivered via delivery or mail.
If notice is received on a Saturday, Sunday or legal holiday, it shall be deemed
received on the next business day.


                                                                     Initials PM
                                  Page - 28 -                                 PM

<PAGE>   29
24. WAIVERS. No waiver by Lessor of the Default or Breach of any term, covenant
or condition hereof by Lessee, shall be deemed a waiver of any other term,
covenant or condition hereof, or of any subsequent Default or Breach by Lessee
of the same or of any other term, covenant or condition hereof. Lessor's consent
to, or approval of, any act shall not be deemed to render unnecessary the
obtaining of Lessor's consent to, or approval of, any subsequent or similar act
by Lessee, or be construed as the basis of an estoppel to enforce the provision
or provisions of this Lease requiring such consent. The acceptance of Rent by
Lessor shall not be a waiver of any Default or Breach by Lessee. Any payment by
Lessee may be accepted by Lessor on account of moneys or damages due Lessor,
notwithstanding any qualifying statements or conditions made by Lessee in
connection therewith, which such statements and/or conditions shall be of no
force or effect whatsoever unless specifically agreed to in writing by Lessor at
or before the time of deposit of such payment.

25. RECORDING. Either Lessor or Lessee shall, upon request of the other,
execute, acknowledge and deliver to the other a short form memorandum of this
Lease for recording purposes. The Party requesting recordation shall be
responsible for payment of any fees applicable thereto.

26. NO RIGHT TO HOLDOVER. Lessee has no right to retain possession of the
Premises or any part thereof beyond the expiration or termination of this Lease.
In the event that Lessee holds over, then the base Rent shall be increased to
one hundred fifty percent (150%) of the Base Rent applicable during the month
immediately preceding the expiration or termination. Nothing contained herein
shall be construed as consent by Lessor to any holding over by Lessee.

27. CUMULATIVE REMEDIES. No remedy or election hereunder shall be deemed
exclusive but shall, wherever possible, be cumulative with all other remedies at
law or in equity.

28. COVENANTS AND CONDITIONS; CONSTRUCTION OF AGREEMENT. All provisions of this
Lease to be observed or performed by Lessee are both covenants and conditions.
In construing this Lease, all headings and titles are for the convenience of the
parties only and shall not be considered a part of this Lease. Whenever required
by the context, the singular shall include the plural and vice versa. This Lease
shall not be construed as if prepared by one of the parties, but rather
according to its fair meaning as a whole, as if both parties had prepared it.

29. BINDING EFFECT; CHOICE OF LAW. This Lease shall be binding upon the parties,
their personal representatives, successors and assigns and be governed by the
laws of the State in which the Premises are located. Any litigation between the
Parties hereto concerning this Lease shall be initiated in the county in which
the Premises are located.

30.  SUBORDINATION; ATTORNMENT; NON-DISTURBANCE.

       30.1 SUBORDINATION. This Lease and any Option granted hereby shall be
subject and subordinate to any ground lease, mortgage, deed of trust, or other
hypothecation or security device (collectively, "Security Device"), now or
hereafter placed upon the Premises, to any and all advances made on the security
thereof, and to all renewals, modifications, and extensions thereof. Lessee
agrees that the holders of any such Security devices shall have no liability or


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                                  Page - 29 -                                PM

<PAGE>   30

obligation to perform any of the obligations of Lessor under this Lease. Any
Lender may elect to have this Lease and/or any Option granted hereby superior to
the lien of its Security device by giving written notice thereof to Lessee, this
Lease and such Options shall be deemed prior to such Security Device,
notwithstanding the relative dates of the documentation or recordation thereof.

       30.2 ATTORNMENT. Subject to the non-disturbance provisions of Paragraph
30.3, Lessee agrees to attorn to a Lender or any other party who acquires
ownership of the Premises by reason of a foreclosure of a Security Device, and
that in the event of such foreclosure, such new owner shall not; (i) be liable
for any at or omission of any prior lessor or with respect to events occurring
prior to acquisition of ownership; (ii) be subject to any offsets or defenses
which Lessee might have against any prior lessor, or (iii) be bound by
prepayment of more than one (1) month's rent.

       30.3 NON-DISTURBANCE. With respect to Security Devices entered into by
Lessor prior to as well as after the execution of this Lease, Lessee's
subordination of this Lease shall be subject to receiving a commercially
reasonable non-disturbance agreement (a "Non-Disturbance Agreement") from the
Lender which Non-Disturbance Agreement provides that Lessee's possession of the
Premises, and this Lease, including any options to extend the term hereof, will
not be disturbed so long as Lessee is not in Breach hereof and attorns to the
record owner of the Premises. Further, within sixty (60) days after the
execution of this Lease, Lessor shall use its commercially reasonable efforts to
obtain a Non-Disturbance Agreement from the holder of any pre-existing Security
Device which is secured by the Premises. In the event that Lessor is unable to
provide the Non-Disturbance Agreement within said sixty (60) days, then Lessee
may, at Lessee's option, directly contact Lessor's lender and attempt to
negotiate for the execution and delivery of a Non-Disturbance Agreement.

       30.4 SELF-EXECUTING. The agreements contained in this Paragraph 30 shall
be effective without the execution of any further documents; provided, however,
that, upon written request from Lessor or a Lender in connection with a sale,
financing or refinancing of the Premises, Lessee and Lessor shall execute such
further writings as may be reasonably required to separately document any
subordination, attornment and/or Non-Disturbance Agreement provided for herein.

31. ATTORNEYS' FEES. If any Party or Broker brings an action or proceeding to
enforce the terms hereof or declare rights hereunder, the Prevailing Party as
hereafter defined) in any such proceeding, action, or appeal thereon, shall be
entitled to reasonable attorneys' fees. Such fees may be awarded in the same
suit or recovered in a separate suit, whether or not such action or proceeding
is pursued to decision or judgment. The term, "PREVAILING PARTY" shall include,
without limitation, a Party or Broker who substantially obtains or defeats the
relief sought, as the case may be, whether by compromise, settlement, judgment,
or the abandonment by the other Party or Broker of its claim or defense. The
attorneys' fees award shall not be computed in accordance with any court fee
schedule, but shall be such as to fully reimburse all attorneys' fees reasonably
incurred. In addition, Lessor shall be entitled to attorneys' fees, costs and
expenses incurred in the preparation and service of notices of Default and
consultations in connection


                                                                    Initials  PM
                                  Page - 30 -                                 PM

<PAGE>   31

therewith, whether or not a legal action is subsequently commenced in connection
with such Default or resulting Breach.

32. LESSOR'S ACCESS; SHOWING PREMISES; REPAIRS. Lessee and Lessor's agents shall
have the right to enter the Premises at any time, in the case of an emergency,
and otherwise at reasonable times for the purpose of showing the same to
prospective purchasers, lenders, or lessees, and making such alterations,
repairs, improvements or additions to the Premises as Lessor may deem necessary.
All such activities shall be without abatement of rent or liability to Lessee.
Lessor may at any time place on the Premises any ordinary "FOR SALE" signs and
Lessor may during the last six (6) months of the term hereof place on the
Premises any ordinary "FOR LEASE" signs. Lessee may at any time place on or
about the Premises any ordinary "FOR SUBLEASE" sign.

33. AUCTIONS. Lessee shall not conduct, nor permit to be conducted, any auction
upon the Premises without Lessor's prior written consent. Lessor shall not be
obligated to exercise any standard of reasonableness in determining whether to
permit an auction.

34. SIGNS. Except for ordinary "FOR SUBLEASE" signs, Lessee shall not place any
sign upon the Premises without Lessor's prior written consent. All signs must
comply with Applicable Requirements.

35. TERMINATION; MERGER. Unless specifically stated otherwise in writing by
Lessor, the voluntary or other surrender of this Lease by Lessee, the mutual
termination or cancellation hereof, or a termination hereof by Lessor for Breach
by Lessee, shall automatically terminate any sublease or lesser estate in the
Premises; provided, however, that Lessor may elect to continue any one or all
existing subtenancies. Lessor's failure within ten (10) days following any such
event to elect to the contrary by written notice to the holder of any such
lesser interest, shall constitute Lessor's election to have such event
constitute the termination of such interest.

36. CONSENTS. Except as otherwise provided herein, wherever in this Lease the
consent of a party is required to an act by or for the other Party, such consent
shall not be unreasonably withheld or delayed. Lessor's actual reasonable costs
and expenses (including but not limited to architects', attorneys', engineers'
and other consultants' fees) incurred in the consideration of, or response to, a
request by Lessee for any Lessor consent, including but not limited to consents
to an assignment, a subletting or the presence or use of a Hazardous Substance,
shall be paid by Lessee upon receipt of an invoice and supporting documentation
therefor. Lessor's consent to any act, assignment or subletting shall not
constitute an acknowledgement that no Default or Breach by Lessee of this Lease
exists, nor shall such consent be deemed a waiver of any then existing Default
or Breach, except as may be otherwise specifically stated in writing by Lessor
at the time of such consent. The failure to specify herein any particular
condition to Lessor's consent shall not preclude the imposition by Lessor at the
time of consent of such further or other conditions as are then reasonable with
reference to the particular matter for which consent is being given. In the
event that either Party disagrees with any determination made by the other
hereunder and reasonably requests the reasons for such determination, the
determining party shall furnish its reasons in writing and in reasonable detail
within ten (10) business days following such request.



                                                                    Initials  PM
                                  Page - 31 -                                 PM

<PAGE>   32

37.    GUARANTOR.

       37.1 EXECUTION. The Guarantors, if any, shall each execute a guaranty in
the form most recently published by the American Industrial Real Estate
Association, and each such Guarantor shall have the same obligations as Lessee
under this Lease.

       37.2 DEFAULT. It shall constitute a Default of the Lessee if any
Guarantor fails or refuses, upon request to provide: (a) evidence of the
execution of the guaranty, including the authority of the party signing on
Guarantor's behalf to obligate Guarantor, and in the case of a corporate
Guarantor, a certified copy of a resolution of its board of directors
authorizing the making of such guaranty, (b) current financial statements, (c) a
Tenancy Statement, or (d) written confirmation that the guaranty is still in
effect.

38.   QUIET POSSESSION. Subject to payment by Lessee of the Rent and performance
of all of the covenants, conditions and provisions on Lessee's part to be
observed and performed under this Lease, Lessee shall have quiet possession and
quiet enjoyment of the Premises during the term hereof.

39.    OPTIONS.

       39.1 DEFINITION. "OPTION" shall mean: (a) the right to extend the term of
or renew this Lease or to extend or renew any lease that Lessee has on other
property of Lessor; (b) the right of first refusal or first offer to lease
either the Premises or other property of Lessor; (c) the right to purchase or
the right of first refusal to purchase the Premises or other property of Lessor.

       39.2 OPTIONS PERSONAL TO ORIGINAL LESSEE. Each Option granted to Lessee
in this Lease is personal to the original Lessee, and cannot be assigned or
exercised by anyone other than said original Lessee and only while the original
Lessee is in full possession of the Premises and, if requested by Lessor, with
Lessee certifying that Lessee has no intention of thereafter assigning or
subletting.

       39.3 MULTIPLE OPTIONS. In the event that Lessee has any multiple Options
to extend or renew this Lease, a later Option cannot be exercised unless the
prior Options have been validly exercised.

       39.4    EFFECT OF DEFAULT ON OPTIONS.

               (A) Lessee shall have no right to exercise an Option: (i) during
the period commencing with the giving of any notice of Default and continuing
until said Default is cured, (ii) during the period of time any Rent is unpaid
(without regard to whether notice thereof given Lessee), (iii) during the time
Lessee is in Breach of this Lease, or (iv) in the event that Lessee has been
given three (3) or more notices of Default, whether or not the Defaults are
cured, during the twelve (12) month period immediately preceding the exercise of
the Option.



                                                                    Initials  PM
                                  Page - 32 -                                 PM

<PAGE>   33

               (B) The period of time within which an Option may be exercised
shall not be extended or enlarged by reason of Lessee's inability to exercise an
Option because of the provisions of Paragraph 39.4(a).

               (C) An Option shall terminate and be of no further force or
effect, notwithstanding Lessee's due and timely exercise of the Option, if,
after such exercise and prior to the commencement of the extended term, (i)
Lessee fails to pay Rent for a period of thirty (30) days after such Rent
becomes due (without any necessity of Lessor to give notice thereof), (ii)
Lessor gives to Lessee three (3) or more notices of separate Default during any
twelve (12) month period, whether or not the Defaults are cured, or (iii) if
Lessee commits a Breach of this Lease.

40. MULTIPLE BUILDINGS. If the Premises are a part of a group of buildings
controlled by Lessor, Lessee agrees that it will observe all reasonable rules
and regulations which Lessor may make from time to time for the management,
safety, and care of said properties, including the care and cleanliness of the
grounds and including the parking, loading and unloading of vehicles, and that
Lessee will pay its fair share of common expenses incurred in connection
therewith.

41. SECURITY MEASURES. Lessee hereby acknowledges that the rental payable to
Lessor hereunder does not include the cost of guard service or other security
measures, and that Lessor shall have no obligation whatsoever to provide same.
Lessee assumes all responsibility for the protection of the Premises, Lessee,
its agents and invitees and their property from the acts of third parties.

42. RESERVATIONS. Lessor reserves to itself the right, from time to time, to
grant, without the consent or joinder of Lessee, such easements, rights and
dedications that Lessor deems necessary, and to cause the recordation of parcel
maps and restrictions, so long as such easements, rights, dedications, maps and
restrictions do not unreasonably interfere with the use of the Premises by
Lessee. Lessee agrees to sign any documents reasonably requested by Lessor to
effectuate any such easement rights, dedication, map or restrictions.

43. PERFORMANCE UNDER PROTEST. If at any time a dispute shall arise as to any
amount or sum of money to be paid by one Party to the other under the provisions
hereof, the Party against whom the obligation to pay the money is asserted shall
have the right to make payment "under protest" and such payment shall not be
regarded as a voluntary payment and there shall survive the right on the part of
said Party to institute suit for recovery of such sum. If it shall be adjudged
that there was no legal obligation on the part of said Party to pay such sum or
any part thereof, said Party shall be entitled to recover such sum or so much
thereof as it was not legally required to pay.

44. AUTHORITY. If either Party hereto is a corporation, trust, limited liability
company, partnership, or similar entity, each individual executing this Lease on
behalf of such entity represents and warrants that he or she is duly authorized
to execute and deliver this Lease on its behalf. Each party shall, within thirty
(30) days after request, deliver to the other party satisfactory evidence of
such authority.


                                                                    Initials  PM
                                  Page - 33 -                                 PM

<PAGE>   34

45. CONFLICT. Any conflict between the printed provisions of this Lease and the
typewritten or handwritten provisions shall be controlled by the typewritten or
handwritten provisions.

46. OFFER. Preparation of this Lease by either Party or their agent and
submission of same to the other Party shall not be deemed an offer to lease to
the other Party. This Lease is not intended to be binding until executed and
delivered by all Parties hereto.

47. AMENDMENTS. This Lease may be modified only in writing, signed by the
Parties in interest at the time of the modification. As long as they do not
materially change Lessee's obligations hereunder, Lessee agrees to make such
reasonable non-monetary modifications to this Lease as may be reasonably
required by a Lender in connection with the obtaining of normal financing or
refinancing of the Premises.

48. MULTIPLE PARTIES. If more than one person or entity is named herein as
either Lessor or Lessee, such multiple Parties shall have joint and several
responsibility to comply with the terms of this Lease.

49. MEDIATION AND ARBITRATION OF DISPUTES. An Addendum requiring the Mediation
and/or the Arbitration of all disputes between the Parties and/or Brokers
arising out of this Lease [ ] IS [ ] IS NOT attached to this Lease.


LESSOR AND LESSEE HAVE CAREFULLY READ AND REVIEWED THIS LEASE AND EACH TERM AND
PROVISION CONTAINED HEREIN, AND BY THE EXECUTION OF THIS LEASE SHOW THEIR
INFORMED AND VOLUNTARY CONSENT THERETO. THE PARTIES HEREBY AGREE THAT, AT THE
TIME THIS LEASE IS EXECUTED, THE TERMS OF THIS LEASE ARE COMMERCIALLY REASONABLE
AND EFFECTUATE THE INTENT AND PURPOSE OF LESSOR AND LESSEE WITH RESPECT TO THE
PREMISES.


                                                                    Initials  PM
                                  Page - 34 -                                 PM
<PAGE>   35

ATTENTION:  NO REPRESENTATION OR RECOMMENDATION IS MADE BY THE
AMERICAN INDUSTRIAL REAL ESTATE ASSOCIATION OR BY ANY BROKER AS
TO THE LEGAL SUFFICIENCY, LEGAL EFFECT OR TAX CONSEQUENCES OF
THIS LEASE OR THE TRANSACTION TO WHICH IT RELATES.  THE PARTIES
ARE URGED TO:

1.     SEEK ADVICE OF COUNSEL AS TO THE LEGAL AND TAX
       CONSEQUENCES OF THIS LEASE.

2.     RETAIN APPROPRIATE CONSULTANTS TO REVIEW AND INVESTIGATE
       THE CONDITION OF THE PREMISES.  SAID INVESTIGATION SHOULD
       INCLUDE BUT NOT BE LIMITED TO:  THE POSSIBLE PRESENCE OF
       HAZARDOUS SUBSTANCES, THE ZONING OF THE PREMISES, THE
       STRUCTURAL INTEGRITY, THE CONDITION OF THE ROOF AND
       OPERATING SYSTEMS, AND THE SUITABILITY OF THE PREMISES FOR
       LESSEE'S INTENDED USE.

WARNING:  IF THE PREMISES IS LOCATED IN A STATE OTHER THAN
CALIFORNIA, CERTAIN PROVISIONS OF THE LEASE MAY NEED TO BE
REVISED TO COMPLY WITH THE LAWS OF THE STATE IN WHICH THE
PREMISES IS LOCATED.

The parties hereto have executed this Lease at the place and on the dates
specified above their respective signatures.

Executed at:Irvine, CA               Executed at:Endocare
----------------------------------   -------------------------------------
on:   2-15-97                        on:    2-14-97
----------------------------------   -------------------------------------

By LESSOR:                           By LESSEE:

Irvine East Partners, Lot 35
----------------------------------   -------------------------------------

----------------------------------   -------------------------------------
By:/s/ Philip MacDonald              By:/s/ Paul Mikus
----------------------------------   -------------------------------------
Name Printed:Philip MacDonald        Name Printed:Paul Mikus
----------------------------------   -------------------------------------
Title:General Partner                Title:CEO
----------------------------------   -------------------------------------

By:                                  By:
----------------------------------   -------------------------------------



                                                                    Initials  PM
                                  Page - 35 -                                 PM

<PAGE>   36

Name Printed:                        Name Printed:
----------------------------------   -------------------------------------
Title:                               Title:
----------------------------------   -------------------------------------
Address:                             Address:
----------------------------------   -------------------------------------

----------------------------------   -------------------------------------
Telephone:  (714) 241-7705           Telephone:  (714) 450-1410
          ------------------------              --------------------------

Facsimile:  (714)  241-0904          Facsimile:  (714) 450-1413
          ------------------------              --------------------------

Federal ID No.95-3702299             Federal ID No.33-0618093
----------------------------------   -------------------------------------

BROKER:                              BROKER:

----------------------------------   -------------------------------------
Executed at:                         Executed at:
----------------------------------   -------------------------------------
on:                                  on:
----------------------------------   -------------------------------------
By:                                  By:
----------------------------------   -------------------------------------
Title:                               Title:
----------------------------------   -------------------------------------
Address:                             Address:
----------------------------------   -------------------------------------

----------------------------------   -------------------------------------
Telephone:                           Telephone:
----------------------------------   -------------------------------------
Facsimile:                           Facsimile:
----------------------------------   -------------------------------------
Federal ID No.                       Federal ID No.
----------------------------------   -------------------------------------

NOTE:  These forms are often modified to meet changing requirements of law and
       industry needs. Always write or call to make sure you are utilizing the
       most current form: AMERICAN INDUSTRIAL REAL ESTATE ASSOCIATION, 700 So.
       Flower Street, Suite 600, Los Angeles, California 90017. (213) 687-8777.
       Fax No. (213) 687-8616.



                                                                FORM 204N-R-6/96

                                   Page - 36 -

(C)Copyright 1996 - By American Industrial Real Estate Association. All rights
reserved. No part of these works may be reproduced in any form without
permission in writing.

<PAGE>   37

                   7 STUDEBAKER (DIAMOND) IRVINE SPECTRUM, CA





                                  [FLOOR PLAN]









                                                                FORM 204N-R-6/96


                                   Page - 36 -

(C)Copyright 1996 - By American Industrial Real Estate Association. All rights
reserved. No part of these works may be reproduced in any form without
permission in writing.
<PAGE>   38



                          ADDENDUM TO THE LEASE BETWEEN
                   IRVINE EAST PARTNERS LOT 35 ("LESSOR") AND
                            ENDOCARE, INC. ("LESSEE")
                             DATED JANUARY 31, 1997
                           FOR THE PROPERTY LOCATED AT
                        7 STUDEBAKER, IRVINE SPECTRUM, CA




50.    BASE RENT:  The base rent shall be paid as follows:

<TABLE>
<CAPTION>

    MONTHS                   AMOUNT
-----------------      ------------------
     <S>                   <C>           
     1-12                  $  12,566.58

     13-24                    12,888.80

     25-36                    13,211.02

     37-48                    13,533.24

     49-60                    13,855.46

</TABLE>

51.    TENANT IMPROVEMENTS: Lessor shall provide Lessee with an allowance of
       $30,000.00 allocated towards tenant improvements per Lessee's discretion.
       This allowance shall be used for general refurbishment (i.e., new carpet,
       tile and repaint). Lessor shall provide one-half (1/2) of the allowance
       within fifteen (15) days after full execution of leases and will provide
       one-half (1/2) upon completion of tenant improvements.

52.    STRUCTURAL REPAIRS: Lessor shall be responsible for all expenses related
       to structural repairs (i.e., roof, foundation and exterior walls) during
       the term of the lease.

53.    SUBLEASING/ASSIGNMENT: Lessee shall have the right to sublease or assign
       said premises with Lessor's consent. Lessor shall not unreasonably
       withhold consent to sublease and shall have absolute discretion over all
       assignments.

54.    AMERICANS WITH DISABILITIES ACT: Lessor, at Lessor's sole cost and
       expense, shall be responsible for ensuring that the building, throughout
       the lease term and all options, is in full compliance with all applicable
       ADA codes and requirements, so long as such compliance is not a result of
       Lessee's specific use.

55.    CAPITAL IMPROVEMENTS: Unless damage is caused by Lessee, Lessor will be
       responsible for all costs of all necessary Capital Improvements. Capital
       Improvements required by future law will be amortized over the useful and
       life of said improvements. Lessee shall be responsible for any capital
       improvements required as a result of Lessee's specific use in the
       building.



<PAGE>   39



56.    WARRANTY: Lessor shall warranty the operating systems of the building
       (i.e., HVAC system, mechanical, electrical, plumbing and lighting) for
       the first six (6) months of the lease.

57.    SIGNAGE: Lessee, at Lessee's sole cost and expense, shall have the right
       to install building top and/or monument signage. Signage shall conform to
       Irvine Spectrum CC&R's and City of Irvine sign criteria.



AGREED & ACCEPTED:



LESSOR:  Irvine East Partners Lot 35     LESSEE: ENDOcare, Inc., a
                                                 Delaware Corporation



By:   /s/ Philip MacDonald               By: /s/ Paul W. Mikus
    ------------------------------           ------------------------------
Its:  General Partner                    Its:   CEO
    ------------------------------           ------------------------------
Date: 2-15-97                            Date:  2-11-97
    ------------------------------           ------------------------------



                                     - 39 -

<PAGE>   40


Voit
Commercial Brokerage

                    NOTICE TO OWNERS AND PROSPECTIVE TENANTS
                      AND BUYERS OF REAL PROPERTY REGARDING
                       THE AMERICANS WITH DISABILITIES ACT


Pleased be advised that an Owner and/or Tenant of real property may be subject
to the Americans with Disabilities Act (the "ADA"), a Federal Law codified at 42
USC Section 12101 et seq. Among other requirements of the ADA that could apply
to your property, Title III of the ADA requires Owners and Tenants of "public
accommodations" to remove barriers to access by disabled persons or provided
auxiliary aids and services for hearing, vision or speech impaired persons by
January 26, 1992. The regulations under Title III of the ADA are codified at 28
CFR Part 36.

We recommend that you and your attorney review the ADA and the regulations, and,
if appropriate, your proposed lease or purchase agreement, to determine if this
law would apply to you, and the nature of the requirements. These are legal
issues. YOU ARE RESPONSIBLE FOR CONDUCTING YOUR OWN INDEPENDENT INVESTIGATION OF
THESE ISSUES. VOIT COMMERCIAL BROKERAGE CANNOT GIVE YOU LEGAL ADVICE ON THESE
ISSUES.

Please acknowledge your receipt of this notice by signing and dating it below.
Thank you.



By: /s/ Paul W. Mikus                        2-11-97
    ------------------------------           ------------------------------
    Signature                                             Date



By: /s/ Philip MacDonald                     2-15-97
    ------------------------------           ------------------------------
    Signature                                             Date



                                   Exhibit "A"