Document:

exv10w44

Exhibit 10.44

SUBLEASE AGREEMENT

     This Sublease Agreement (this “Sublease”) is made as of the ___ day of February, 2009 (the
“Effective Date”) by and between CENTEX HOMES a Nevada general partnership, having an address at
2728 N. Harwood, Dallas TX 75201 (“Sublandlord”) and Opus Healthcare Solutions, Inc., a Texas
corporation having an address at 12301 Research Blvd., Building IV, Suite 200, Austin, TX 78759
(“Subtenant”).

     Pursuant to a lease agreement dated May 23, 2005 and the first amendment thereto dated April
17, 2006 (the “Master Lease”), copies of which are annexed to this Sublease as Exhibit A,
between Carr Texas OP, LP, a Delaware limited partnership, as landlord (“Landlord”) and
Sublandlord, as tenant, Sublandlord leased from Landlord a total of approximately thirty-nine
thousand two hundred twenty-six (39,226) rentable square feet in the building known as Riata
Corporate Park 2 (the “Building”) and having an address at 12301-B Riata Trace Parkway, Austin,
Texas (the “Premises”). The term “Master Lease” includes any amendments or modifications thereto
and any other agreements concerning the Premises. Sublandlord now desires to sublease to Subtenant
and Subtenant desires to sublease from Sublandlord a portion of the Premises described as
approximately twenty-one thousand one hundred forty-eight (21,148) rentable square feet on the
second floor of the Building (the “Subleased Premises”), as determined in accordance with The
Standard Method for Measuring Floor Area in Office Buildings (ANSI/BOMA 265.1-1996, published by
the Building Owners and Managers Association).

     For good and valuable consideration, the receipt whereof is acknowledged by the parties,
Sublandlord and Subtenant agree as follows:

1. Sublease of Premises — AS-IS Condition. Sublandlord hereby subleases to Subtenant and
Subtenant hereby subleases from Sublandlord the Subleased Premises in accordance with the terms and
conditions of this Sublease. Subtenant has inspected the Subleased Premises, is satisfied with its
condition and hereby accepts the Subleased Premises in its “AS IS” condition. ADDITIONALLY,
SUBLANDLORD SHALL MAKE NO WARRANTIES, EXPRESS OR IMPLIED, WITH RESPECT TO THE LEASEHOLD
IMPROVEMENTS IN THE SUBLEASED PREMISES. ALL IMPLIED WARRANTIES WITH RESPECT THERETO, INCLUDING, BUT
NOT LIMITED TO, THOSE OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE EXPRESSLY
NEGATED AND WAIVED.

2. Sublease Term and Access to the Subleased Premises.

     a. Term. The term (the “Term”) of this Sublease shall commence on April 1, 2009 (the
“Commencement Date”), unless extended pursuant to Paragraph 23 below, and shall expire on October
31, 2010 (the “Expiration Date”), unless sooner terminated or extended, as provided herein.
Sublandlord retains all rights to terminate the Master Lease as provided therein and this Sublease
is subject to such rights. If the Master Lease expires or is terminated for any reason whatsoever,
including any termination by Sublandlord, this Sublease shall terminate automatically, and the
parties hereto shall be relieved of all liabilities and obligations hereunder, except for those
which accrued prior to the date of such termination. During the Term, Sublandlord shall pay all
Rent as it becomes due under the Master Lease and shall not otherwise intentionally cause a
termination of the Master Lease.

     b. Prior Access. Notwithstanding the foregoing, provided Landlord has given its
written consent to this Sublease in accordance with the provisions of Paragraph 23 below, as of
February 15, 2009 and prior to the Commencement Date (the “Move-In Period”), Subtenant shall have a
license to enter into the Subleased Premises for the sole purpose of preparing the Subleased
Premises for Subtenant’s future use thereof, including the installation of a server room, telephone
equipment, computer, cabling and office furnishings (the “Move-In Work”), which such Move-In Work
shall be subject to Sublandlord and Landlord’s prior written consent. Subtenant hereby acknowledges
and agrees that, during the Move-In Period, (i) Subtenant shall not have exclusive access to the
Subleased Premises, (ii) Sublandlord may continue to store furniture, equipment and other items in
the Subleased Premises

1

 

and (iii) the Subleased Premises are not required to be in a “broom clean” condition. Subtenant
shall have no obligation to pay Base Rent during the Move-In Period, but all other terms and
provisions of this Sublease shall apply to Subtenant’s use of the Subleased Premises during the
Move-In Period, including, without limitation, Subtenant’s obligation to obtain and maintain
insurance in accordance with the provisions of Paragraph 16 below. Notwithstanding the foregoing,
in no event shall the Move-In Work extend or delay the Commencement Date. Sublandlord hereby agrees
to surrender and deliver possession of the Subleased Premises in a “broom clean” condition on or
before February 27, 2009.

3. Rent and Other Charges.

     a. Rent. Beginning on the Commencement Date, Subtenant shall pay total base rent
(“Base Rent”) for the Premises in the amount of $26,435.00 per month, payable on or before the
first day of each consecutive calendar month. Subtenant is not obligated to pay any Operating Cost
Share Rent or Operating Costs (as defined in the Master Lease), but Subtenant is obligated to pay
Additional Rent required to be paid under the Master Lease for such items as excessive use of
services, the performance of special services by Landlord that are not charged as part of Excess
Operating Costs, and indemnification payments.

     b. Utilities. In the event Landlord requests that either Sublandlord or Subtenant
separately meter the Subleased Premises for utilities including, but not limited to electric or gas
services, (i) Subtenant shall arrange with the utility company and/or Landlord to have the meter
billed directly to Subtenant, (ii) Subtenant shall pay for all utility services consumed in the
Subleased Premises and (iii) Subtenant shall reimburse Sublandlord for any and all utility charges
actually incurred by Sublandlord arising from and after the Commencement Date until such use is
separately billed to Subtenant.

     c. Payment. All Rent shall be paid by Subtenant to Sublandlord by check made payable
to Centex Homes and shall be sent to:

Centex Service Co.

P.O. Box 841593

Lock Box #841593

 Dallas, TX 75284-1593

     d. Late Payments. In addition to all other remedies which Sublandlord may have at law,
in the event that Subtenant fails to make any payment for which it is obligated under this Sublease
within five (5) business days of its due date, the amount of such payment shall bear interest at
the greater of (i) the rate of interest applicable to late payments under the Master Lease, and
(ii) rate of one and one-half percent (11/2%) per month for each month or fraction of a month such
payment is late. In the event that the legal limit of the interest rate chargeable for late
payments is less than 11/2% per month, then the late payments shall bear interest at the highest
permissible legal rate of interest.

     e. Rent All sums due to Sublandlord from Subtenant shall constitute Rent under this
Sublease and will be subject to all the terms and conditions for payment as set forth in this
Sublease.

4. Security Deposit: First Month’s Rent.

     a. Security Deposit. Upon the Effective Date, Subtenant shall deposit with
Sublandlord, as security for Subtenant’s faithful performance of all terms, covenants and
conditions of this Sublease, the sum of $26,435.00. This deposit is to be retained by Sublandlord
until the expiration or sooner termination of this Sublease and shall be returned to Subtenant
within ten (10) business days thereafter provided that (i) the Subleased Premises have been
vacated; (ii) Sublandlord shall have inspected the Subleased Premises after such vacation and
found the Subleased Premises to be in the condition required pursuant to the Master Lease; and
(iii) Subtenant shall have complied with all of the terms, covenants, and conditions of this
Sublease. Otherwise, the deposit paid pursuant to this Paragraph 4(a) may be retained by
Sublandlord, at its option, as liquidated damages, or may be applied by Sublandlord at any time
during the Term of this Sublease against any actual loss, damage or injury chargeable to

2

 

Subtenant. If any portion of the deposit is so used or applied, Subtenant shall, within five (5)
business days after written demand from Sublandlord, deposit with Sublandlord an amount sufficient
to replace the amount of the deposit so used or applied. Subtenant shall not be entitled to apply
the deposit to the last payment of Rent or any other payment due under this Sublease.

     b. First Month’s Rent. Upon the Effective Date, Subtenant shall pay to Sublandlord the
first month’s Rent in the amount of $26,435.00.

5. Use. Subtenant shall use the Subleased Premises only for general office purposes and for no
other purpose.

6. Quiet Possession. Sublandlord has the right to sublease the Subleased Premises for the
Term of this Sublease, subject to the provisions of Paragraph 23 following, and agrees that
Subtenant, upon paying the Rent and performing and observing the covenants and conditions to be
performed and kept by it as provided in this Sublease, shall have the peaceable and quiet
possession of the Subleased Premises during the Term of this Sublease.

7. Services. Sublandlord shall have no liability or responsibility for the provision of any
services to the Subleased Premises. Rather, Landlord will provide such services in accordance with
the terms of the Master Lease. No failure of Landlord to provide services, and no interruption in
the provision of such services, shall cause Sublandlord to be in default under this Sublease nor
shall Subtenant be entitled to an abatement of Rent or to terminate this Sublease.

8. Alterations. Subtenant shall make no alterations to the Subleased Premises without both
Sublandlord’s and Landlord’s prior written consent. Notwithstanding the foregoing, in the event
Sublandlord and Landlord grant such consent, Subtenant may make alterations to the Subleased
Premises provided that (i) any such alterations shall be made in accordance with the provisions of
Section 5 of the Master Lease, (ii) any such alterations shall be made at Subtenant’s sole cost and
expense and (ii) at the expiration of the Term, Subtenant shall be responsible for the sole cost
and expense of restoring the Subleased Premises to the condition so requested by Landlord.

9. Repairs and Maintenance. To the extent of Sublandlord’s obligations as the tenant under
the Master Lease, Subtenant shall maintain the Subleased Premises in good, safe, sanitary condition
and repair, subject to ordinary wear and tear, and promptly repair any damage caused by Subtenant,
its employees, agents, contractors, customers, clients, or other parties lawfully at the Subleased
Premises. Subtenant shall obtain and maintain in full force and effect throughout the Term of this
Sublease a contract with a reputable service company for the upkeep and maintenance of the heating,
ventilating, and air conditioning system servicing the Subleased Premises to the extent required
under the Master Lease, and shall provide a copy of such contract and all renewals to Sublandlord.
Sublandlord shall have no liability or responsibility for maintenance, repairs, rebuilding or
restoration of the Subleased Premises. No failure of Landlord to provide such maintenance, repairs,
rebuilding or restoration shall cause Sublandlord to be in default under this Sublease nor shall
Subtenant be entitled to an abatement of rent or to terminate this Sublease.

10. Entry by Landlord and Sublandlord. Subtenant shall permit Landlord and Sublandlord and
their agents and representatives to enter upon the Subleased Premises for the purposes and under
the conditions set forth in the Master Lease.

11. Environmental Conditions. Subtenant shall not bring or cause to be brought to the
Premises, or produce on the Subleased Premises, any hazardous substances (“Hazardous Substances”)
which are regulated by any Federal, State or local statutes or ordinances. Hazardous Substances
shall include any substances declared to be hazardous or toxic under any law or regulation now or
hereafter enacted or promulgated by any governmental or quasi-governmental authority having
jurisdiction. Subtenant shall not cause or permit its employees, agents, licensees, contractors,
customers, or any other parties coming onto or into the Subleased Premises for any reason, to cause
the use, generation, release, manufacture, production, processing, storage, or disposal of any
Hazardous Substances on or from the Subleased

3

 

Premises. Further, Subtenant shall not cause any hazardous condition to occur on the Subleased
Premises or conduct any business or operations on the Subleased Premises which are reasonably
deemed by Sublandlord’s or Landlord’s insurance carriers to constitute a material increase in the
risks initially insured as they pertain to hazardous materials or hazardous activities, or which
would increase Landlord’s or Sublandlord’s property or liability insurance premiums. In the event
Subtenant breaches the provisions of this Paragraph 11, Subtenant shall, in accordance with
applicable laws, promptly remove the Hazardous Substances and cease the business or operations
which are hazardous. In the event Subtenant shall fail to comply with the provisions of this
Paragraph 11, Sublandlord, in addition to all other rights and remedies provided to it in this
Sublease, shall have the right to immediately terminate this Sublease and to take all actions
legally permissible to remove Subtenant and its property from the Premises. The obligations of this
Paragraph 11 are in addition to any provision in the Master Lease concerning environmental
conditions or issues. It is expressly agreed by Subtenant that its indemnification obligations
under this Sublease, and all the terms and conditions thereof pursuant to Paragraph 19, apply to
this Paragraph 11.

12. Surrender of Premises. Subtenant shall immediately vacate and surrender the Subleased
Premises on the expiration or any earlier termination date of this Sublease, and shall
simultaneously remove all of Subtenant’s furnishings, equipment, and all other personal property
from the Subleased Premises. Subtenant also shall comply with all provisions of the Master Lease
with respect to the surrender of the Subleased Premises upon expiration of the Master Lease. If
Subtenant fails to remove any of its property within five (5) days thereafter, Sublandlord shall
have the right, in Sublandlord’s sole discretion, to deem all or any part of such property
abandoned and to remove, store, or dispose of Subtenant’s property in any manner it elects without
any obligation to account for the value of such property or to make any payment therefor to
Subtenant. If Subtenant shall fail to vacate the Subleased Premises or remove any of its property
as described above, then Sublandlord, in addition to any other rights and remedies it may have
pursuant to the Master Lease, this Sublease, or at law or in equity, shall have the right to
receive and Subtenant shall pay as penalty and not as Rent, an amount equal to 200% of the Base
Rent due for each day after the expiration or termination date that Subtenant and/or its property
remains in the Subleased Premises.

13. Incorporation of Master Lease.

     a. This Sublease is subject and subordinate to the Master Lease. Except as may be inconsistent
with the terms and provisions hereof, the terms and provisions of the Master Lease shall be
applicable to this Sublease and shall be incorporated into this Sublease as if Sublandlord was the
lessor under the Master Lease and Subtenant was the lessee under the Master Lease. Where reasonably
necessary, the terms of the Master Lease as incorporated into this Sublease shall be construed in
light of the fact that Sublandlord (unlike Landlord) does not own a fee interest in the Subleased
Premises but only a leasehold interest under the Master Lease.

     b. Landlord’s performance in accordance with the Master Lease shall fulfill the equivalent
obligation of Sublandlord hereunder. As between the parties hereto, if the terms of this Sublease
conflict with the terms of the Master Lease, then the terms of this Sublease shall control.
Subtenant shall perform and observe all the obligations, covenants, indemnities, and conditions
contained in the Master Lease on Sublandlord’s part that are incorporated herein above by
reference. Subtenant will not cause or allow to be caused any default under the Master Lease.
Subtenant hereby indemnifies and holds Sublandlord harmless from and against any claim, loss,
damage, expense (including without limitation reasonable attorneys’ fees and costs) or liability
arising under the Master Lease, from or related to Subtenant’s failure to perform Subtenant’s
obligations under this Sublease, or arising from a default under the Master Lease caused by
Subtenant, including without limitation those obligations of Sublandlord pursuant to the Master
Lease which are incorporated herein by reference. Subtenant acknowledges that it has received and
reviewed the Master Lease, in the form attached hereto as Exhibit A. Subtenant is not
relying on, and Sublandlord has made no representations regarding, the interpretation of the terms
of the Master Lease.

     c. Sublandlord shall be entitled to the same rights, privileges, options, and remedies
available to Landlord under the Master Lease and such rights, privileges, options and remedies are

4

 

hereby incorporated in this Sublease. Subtenant acknowledges that it is bound by the same
responsibilities, limitations, and duties of the tenant under the Master Lease and that such
responsibilities, limitations, and duties are hereby incorporated in this Sublease.

14. Option to Renew or Extend Master Lease. Sublandlord shall retain all right, and
Subtenant shall have no right, to exercise any renewal, expansion, refusal, contraction,
termination, preferential or other rights contained in the Master Lease to increase or decrease the
size of the Premises or the Subleased Premises, extend or shorten the term of the Master Lease, or
terminate the Master Lease.

15. Partial Lease Provisions.

     a. Allocation of Rent. To the extent any charges payable under the Master Lease, and
payable under this Sublease, are payable on a per square foot basis, such as Additional Rent, then
such charges shall also be allocated to the Subleased Premises on a per square foot basis.

     b. Parking. Subtenant shall be entitled to use eighty-five (85) of the parking spaces
to which Sublandlord is entitled under the Master Lease, at no additional cost.

     c. Signs. Sublandlord shall retain all signage and building naming rights contained in
the Master Lease. Subtenant shall have no right to install any signs on the exterior of the
Subleased Premises, the Premises, or the building in which the Premises is located. Notwithstanding
the foregoing, and subject to the prior written approval of both Landlord and Sublandlord, in their
respective sole and absolute discretion, Subtenant may install, at Subtenant’s sole cost and
expense, standard directory and suite signage.

     d. Elevator Lobby. Subject to the prior written approval of both Landlord and
Sublandlord, in their respective sole and absolute discretion, Subtenant may utilize the elevator
lobby of the Building on floor 2 as its reception area; provided, however, that such use shall not
interfere with or otherwise disturb the access of other tenants in the Building to their respective
leased premises or interrupt the business operations of other tenants in the Building.

16. Insurance.

     a. As of the Effective Date, Subtenant shall provide and keep in force during the Term
commercial general liability insurance with a combined single limit of $1,000,000 per occurrence
covering the Subleased Premises, Fire Legal Liability limits of $300,000; Property insurance
covering subtenants betterments and improvements and personal property; along with any other
insurance required to be maintained by the tenant under the Master Lease. The policies shall name
Landlord and Sublandlord as additional insureds and shall provide for at least thirty (30) days
written notice before cancellation or material change in the policy. Subtenants policies shall
waive all rights of subrogation against Landlord and Sublandlord and shall be primary insurance and
not excess over any liability insurance provided by Landlord or Sublandlord. Subtenant shall
provide to Sublandlord a certificate of insurance as evidence of coverage prior to Subtenant’s
occupancy of the Premises and shall promptly furnish Sublandlord with a renewal certificate on or
before the date of the expiration of the policy then in effect.

     b. Anything in this Sublease to the contrary notwithstanding, Sublandlord and Subtenant each
hereby waives any and all rights of recovery, claim, action or cause-of-action, against each other,
and the Landlord, and their agents (including partners, both general and limited), officers,
directors, shareholders, customers, invitees, or employees, for any loss or damage that may occur
to the Subleased Premises, the Premises, and the building in which they are located, or any
improvements thereto, or any improvements thereon, or any personal property of such party therein,
by reason of fire, the elements or any other cause which is actually insured against by Landlord,
Sublandlord or Subtenant, as the case may be, regardless of cause or origin, including negligence
of the other party hereto, its agents, partners, shareholders, officers, directors, customers,
invitees or employees, and covenants that no insurer shall hold any right of subrogation against
such other party.

5

 

17. Subtenant Renewal, Provided that (i) the Master Lease has not been terminated, (ii) this
Sublease has not been terminated, (iii) an event of default has not occurred and (iv) Sublandlord
has granted its consent thereto, which consent may be withheld in Sublandlord’s sole and absolute
discretion, Subtenant is hereby granted the right (“Subtenant’s Renewal Right”) to extend the Term
of this lease until April 30, 2013, which is the termination date as set forth in the Master Lease
(the “Termination Date”) (such that Subtenant’s sublease of the Subleased Premises will be
coterminous with Sublandlord’s lease of the Premises). In the event Subtenant desires to exercise
the Subtenant Renewal Right, Subtenant shall deliver to Sublandlord one hundred eighty (180) days
prior written notice of its intent to renew. If Subtenant timely delivers the such notice to
Sublandlord, Sublandlord shall deliver to Subtenant no later than one hundred twenty (120) days
prior written notice of whether Sublandlord will consent to the exercise of Subtenant’s Renewal
Right. The “Renewal Term” shall commence on the day after the Expiration Date and shall
expire on the Termination Date, subject to Paragraph 2 above. Subtenant shall pay Base Rent during
such Renewal Term in accordance with the following schedule:

	 	 	 	 	 	 	 	 	 
	 	 	Base Rent	 	Payment per month for
	Period	 	rate	 	applicable period
	 
	November 1, 2010 - February 28, 2011
	 	$	20.90	 	 	$	36,833.00	 
	March 1, 2011- February 29, 2012
	 	$	21.375	 	 	$	37,670.00	 
	March 1, 2012 - April 30, 2013
	 	$	21.85	 	 	$	38,507.00	 

     Notwithstanding the foregoing, nothing contained herein shall be deemed to obligate
Sublandlord to consent to any such renewal. In the event Sublandlord does not consent to
Subtenant’s exercise to Subtenant Renewal Right, the Term shall expire on the Expiration Date in
accordance with Paragraph 2 above and Subtenant shall vacate the premises in accordance with
Paragraph 12 above.

18. Furniture and Equipment.

     a. Sublandlord hereby grants to Subtenant, and Subtenant hereby accepts from Sublandlord, a
license to use all those items of furniture (the “Furniture”) belonging to Sublandlord listed on
Exhibit B attached hereto and made a part hereof until the earlier to occur of (i) the
termination of this Sublease or (ii) the expiration of the Term or the Renewal Term, if applicable.
In the event this Sublease is not otherwise terminated, and so long as an event of default has not
occurred, upon the expiration of the Term or the Renewal Term, as applicable, Subtenant shall have
the right to purchase those items of furniture listed on Exhibit C attached hereto and made
a part hereof from Sublandlord for a purchase price of One and No/100 Dollar ($1.00).

     b. FOR SEVEN THOUSAND FIVE HUNDRED AND NO/100 DOLLARS ($7,500.00) AND OTHER GOOD AND VALUABLE
CONSIDERATION, the receipt and sufficiency of which is hereby acknowledged and confessed,
Sublandlord does hereby bargain, assign, and sell to Subtenant all Sublandlord’s right, title and
interest in and to the IT equipment (the
“Equipment”) listed on Exhibit D attached hereto
and made a part hereof. Subtenant shall pay any federal, state or local sales, use, or value added
tax which may be due as a result of this transfer.

     c. SUBTENANT UNDERSTANDS AND AGREES THAT THE FURNITURE AND THE EQUIPMENT ARE BEING SOLD AND
CONVEYED “AS IS”, “WHERE IS”, “WITH ALL FAULTS” THAT MAY EXIST AS OF THE EFFECTIVE DATE, AND WITH
ANY AND ALL LATENT AND PATENT DEFECTS. SUBLANDLORD SPECIFICALLY DISCLAIMS ANY AND ALL WARRANTIES,
WHETHER WRITTEN OR ORAL, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION THE WARRANTIES OF
MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE WITH RESPECT TO THE FURNITURE AND THE
EQUIPMENT, AND SUBTENANT HEREBY EXPRESSLY WAIVES ANY IMPLIED COVENANTS. SUBLANDLORD HAS NOT MADE
AND DOES NOT HEREBY MAKE ANY REPRESENTATIONS OR WARRANTIES OF ANY KIND OR CHARACTER WHATSOEVER WITH
RESPECT TO THE FURNITURE AND THE EQUIPMENT, THEIR CONDITION, THEIR COMPLIANCE WITH LAWS, INCOME TO
BE DERIVED THEREFROM, OR EXPENSES TO BE INCURRED WITH RESPECT THERETO, THE OBLIGATIONS,
RESPONSIBILITIES OR LIABILITIES RELATING TO THE

6

 

FURNITURE AND THE EQUIPMENT, OR ANY OTHER MATTER OR THING RELATING TO OR AFFECTING THE FURNITURE
AND THE EQUIPMENT.

19. Indemnification. Subtenant shall indemnify and hold harmless Landlord, Sublandlord,
their affiliates and subsidiaries, and their employees, agents, successors, assigns, officers and
directors from and against any and all claims, demands, causes of action, damages or penalties
arising in connection with (i) Subtenant’s use or occupancy of the Subleased Premises, (ii) the
conduct of Subtenant’s business or from any activity, work or things done, permitted or suffered by
Subtenant in or upon the Subleased Premises, (iii) the Furniture and the Equipment or (iv) any
breach by Subtenant of any terms and conditions of this Sublease or Master Agreement. Subtenant
shall not be liable for any damage or injury caused solely by the negligence or intentional acts of
Landlord, Sublandlord, or their respective employees, agents, or contractors occurring at the
Subleased Premises. The provisions of this Paragraph 19 shall survive the expiration or sooner
termination of this Sublease.

20. Default. Should Subtenant fail to pay any Rent due or any other sum required to be paid
by Subtenant to Sublandlord hereunder, or should Subtenant default in the performance of any other
covenant or condition on Subtenant’s part to be performed and such default, if with respect to
Rent, is not cured within the shorter of (a) five (5) business days after Subtenant’s receipt of
written notice from Sublandlord or within thirty (30) days after receipt of written notice with
respect to other defaults in performance, specifying the nature of such alleged default, or (b) the
period required under the Master Lease, Sublandlord shall have the right to terminate this Sublease
and shall have all such other rights and remedies as are afforded at law or in equity to a landlord
upon default by a tenant, and Subtenant shall indemnify and hold harmless Sublandlord from all
damages resulting from such default; provided, however, if the nature of the default (other than
failure to pay Rent) is such that it cannot be cured within such period, then Subtenant shall not
be deemed to be in default if Subtenant shall have commenced the cure of such default within such
period and thereafter diligently prosecutes such cure to completion except to the extent such
failure constitutes a default under the Master Lease. The indemnification obligation pursuant to
this Paragraph 20 shall survive the expiration or sooner termination of this Sublease.

21. Brokers. Except for Commercial Real Estate
Solutions (“Subtenant’s Broker”), Subtenant
hereby represents that it has not employed any broker or finder in connection with this Sublease
Agreement. Subtenant has agreed to pay Subtenant’s Broker pursuant to the terms of a separate
agreement. Except for The Staubach Company (“Sublandlord’s Broker”), Sublandlord hereby represents
that it has not employed any broker or finder in connection with this Sublease Agreement.
Sublandlord has agreed to pay Sublandlord’s Broker pursuant to the terms of a separate agreement.
Subtenant agrees to indemnify and hold harmless Sublandlord from and with respect to any claims for
a brokerage commission, finder’s fee or similar payment with respect to this Sublease that is made
by any party claiming by, through or under Subtenant. Similarly, Sublandlord agrees to indemnify
and hold harmless Subtenant from and with respect to any claims for a brokerage fee, finder’s fee
or similar payment with respect to this Sublease that is made by a party claiming by, through or
under Sublandlord.

22. Miscellaneous Provisions.

     a. Notices. All notices, requests, consents and other communications required or
permitted
under this Sublease shall be in writing (including electronic transmission) and shall be (as
elected by the person giving such notice) hand delivered by messenger, sent by a reputable
overnight courier service, electronically transmitted, or mailed (airmail if international) by
registered or certified mail (postage prepaid), return receipt requested, addressed to:

7

 

	 	If to Subtenant:  	 	Opus Healthcare Solutions

12 301-B Riata Trace Pk cuq.

Austin, TX 78727

Attn: Fred Beck

Phone: 512-336-7200

Fax: 512-336-4479
	 
	 	If to Sublandlord:  	 	Centex Homes

c/o SRS Real Estate Partners

Lease Administration, File ID # __________

15660 N. Dallas Parkway, Suite
1200 
Dallas, TX 75248
	 
	 	 	 	With copy to:
	 
	 	 	 	Centex Homes

2728 N. Harwood

Dallas, TX 75201

Attention: Director of Facilities

or to such other address as any party may designate by notice complying with the terms of this
Section. Each such notice shall be deemed delivered (a) on the date delivered if by personal
delivery or reputable overnight carrier service; (b) on the date of transmission with confirmed
answer back if by electronic transmission; and (c) on the date upon which the return receipt is
signed or delivery is refused or the notice is designated by the postal authorities as not
deliverable, as the case may be, if mailed.

     b. Assignment and Subletting. Subject to the limitations in the Master Lease and
below, Subtenant shall have the right to assign, in whole or in part, all its rights and
obligations hereunder upon the written consent of Sublandlord; provided, however, such assignment
shall in any event be subject to the approval of Landlord. No transfer or assignment by Subtenant
shall release Subtenant of Subtenant’s obligations hereunder or affect the primary liability of
Subtenant to perform all obligations to be performed by Subtenant hereunder. Sublandlord shall have
the right, in its sole discretion, to withhold consent to any request from Subtenant with respect
to any proposed assignment or subletting. Sublandlord shall have the right to transfer and assign,
in whole or in part, all its rights and obligations hereunder. Upon request by Sublandlord,
Subtenant agrees to execute a certificate certifying such facts (if true) as Sublandlord may
reasonably require in connection with any such assignment by Sublandlord.

     c. Governing Law. This Sublease shall be governed by the laws of the state in which
the Premises are located.

     d. Severability. If any provision of this Sublease is determined by a court of
competent jurisdiction to be invalid or unenforceable, the remainder of this Sublease shall not be
affected thereby, and this Sublease shall be valid and enforceable to the fullest extent permitted
by law.

23. Landlord’s Consent. This Sublease shall not become effective and shall not bind the
parties until Landlord has given its consent to this Sublease. Subtenant may not occupy the
Subleased Premises prior to receiving Landlord’s consent to this Sublease. If Landlord does not
give its consent within thirty (30) days after the date first written above, either party may
terminate this Sublease upon five (5) business days notice. In the event of such termination,
Sublandlord shall promptly refund any monies paid to it by Subtenant. Notwithstanding the
foregoing, in the event (i) Landlord fails to give its consent prior to April 1, 2009 and (ii)
neither Sublandlord nor Subtenant have terminated this Sublease in accordance with the provisions
of this Paragraph 23, the Commencement Date shall be extended until such date that Landlord gives
its consent to this Sublease.

[SIGNATURE PAGE FOLLOWS.]

8

 

     Sublandlord and Subtenant have executed this Sublease as of the Effective Date.

	 	 	 	 	 	 	 	 	 	 	 

	Sublandlord:	 	 	 	Subtenant:	 	 
	CENTEX HOMES,	 	 	 	OPUS HEALTHCARE	 	 
	a Nevada general partnership	 	 	 	a ________________________	 	 
	 
	 	 	 	 	 	 	 	 	 	 
	By:

	 	Centex Real Estate Corporation

A Nevada corporation,
 managing
general partner	 	 	 	 	 	 	 	 
	 
	 	 	 	 	 	 	 	 	 	 
	By:

	 	/s/ Chris Werth
	 	 	 	By:
	 	/s/ Fred Beck	 	 
	 

	 	 

	 	 
	 	 	 	 

	 	 
	 

	 	Print Name: Chris Werth
	 	 	 	 	 	Print Name: Fred Beck	 	 
	 

	 	Title:             Division President
	 	 	 	 	 	Title:             President	 	 

By execution of this Sublease, Landlord consents to the sublease of the Premises to Subtenant on
the terms and conditions set forth in this Sublease.

	 	 	 	 	 
	Landlord:

CARR TEXAS OP, LP,

a Delaware limited partnership

 	 	 
	By:  	 Carr Texas OP GP, LLC
 	 	 
	 	a Delaware limited liability company 	 	 
	 	 its general partner 	 	 
	 
	 	 	 
	By:  	        Carr Office Park, LLC
 	 	 
	 	a Delaware limited liability company 	 	 
	 	its sole member 	 	 
	 
	 	 	 
	By:  	 CarrAmerica Realty Operating Partnership, LP,
 	 	 
	 	 a Delaware limited partnership 	 	 
	 	its managing member 	 	 
	 
	 	 	 
	By:  	                       CarrAmerica Realty Corporation,
 	 	 
	 	a Maryland corporation  	 	 
	 	its general partner 	 	 
	 
	 	 	 
	By:  	
 	 	 
	 	Print Name:  	  	 	 
	 	Title:  	 	 	 
	 	Date:  	 	 	 
	 

9

 

EXHIBIT A

MASTER LEASE AND FIRST AMENDMENT

[see attached]

 

EXHIBIT B 

INVENTORY OF FURNITURE SUBJECT TO LICENSE TO USE BY SUBTENANT

	 	 	 	 	 
	Description	 	Total
	chair, black leather
	 	 	2	 
	chair, stationary
	 	 	68	 
	chair, wheels
	 	 	100	 
	corner desk
	 	 	2	 
	cubes
	 	 	46	 
	desk
	 	 	24	 
	desk, metal- small
	 	 	1	 
	desk, metal- wheels
	 	 	1	 
	hutch for desk
	 	 	2	 
	hutch for two drawer cabinet
	 	 	2	 
	large conference table
	 	 	2	 
	metal cart, wheels
	 	 	1	 
	modular desk
	 	 	25	 
	short tables, square
	 	 	2	 
	small chair, stationary
	 	 	8	 
	table, folding
	 	 	1	 
	table, medium
	 	 	1	 
	table, round
	 	 	6	 
	table, semicircle
	 	 	1	 
	table, square
	 	 	5	 
	table, square, wheels
	 	 	1	 
	tables, square
	 	 	2	 
	tall tables, square
	 	 	2	 

Other file cabinets, storage items, book shelves, and other miscellaneous items
to be determined after Sublandlord vacates the 2nd floor.

 

 

EXHIBIT C

INVENTORY OF FURNITURE SUBJECT TO PURCHASE BY SUBTENANT

	 	 	 	 	 
	Description	 	QTY
	chair, stationary
	 	 	34	 
	chair, wheels
	 	 	50	 
	corner desk
	 	 	1	 
	cubes
	 	 	46	 
	desk
	 	 	12	 
	desk, metal- small
	 	 	 	 
	desk, metal- wheels
	 	 	1	 
	hutch for desk
	 	 	1	 
	hutch for two drawer cabinet
	 	 	1	 
	large conference table
	 	 	1	 
	metal cart, wheels
	 	 	1	 
	modular desk
	 	 	12	 
	short tables, square
	 	 	1	 
	small chair, stationary
	 	 	8	 
	table, folding
	 	 	1	 
	table, medium
	 	 	1	 
	table, round
	 	 	3	 
	table, semicircle
	 	 	1	 
	table, square
	 	 	2	 
	table, square, wheels
	 	 	1	 
	tables, square
	 	 	1	 

Other file cabinets, storage items, book shelves, and other miscellaneous items to be
determined after Sublandlord vacates the 2nd floor.

 

 

EXHIBIT D 

IT EQUIPMENT PURCHASED BY SUBTENANT

	 	 	 	 	 	 	 
	Description	 	Serial Number	 	QTY	 
	 
	 	 	 	 	 	 
	Cisco Systems Catalyst 2950 Series
	 	FHK0934Y06D	 	 	1	 
	Cisco Systems Catalyst 2950 Series
	 	FHK0934Z06V	 	 	1	 
	Cisco Systems Catalyst 2950 Series
	 	FHK0936W01U	 	 	1	 
	Cisco Systems Catalyst 2950 Series
	 	FHK0936W02L	 	 	1	 
	Cisco Systems Catalyst 2950 Series
	 	FHK0936X03N	 	 	1	 
	Cisco Systems Catalyst 2950 Series
	 	FOC0848Z0UE	 	 	1	 

 

 

	 	 	 	 	 
	 	TENANT:

CENTEX HOMES, a Nevada general partnership

 	 
	 	By:  	Centex Real Estate Corporation, a Nevada corporation, its managing partner
 	 
	 	 	 	 
	 	 	 
	 	By:  	/s/ Bryan Swindell
 	 
	 	 	Name:  	Bryan Swindell 	 
	 	 	Title:  	Division President

 	 

	 	 	 	 	 
	 
	 	Address:  	 	 
	 	  	 	 
	 	  	 	 
	 
	 	Date signed:  	  5/25/05 	 

30

 

APPENDIX A

LEGAL DESCRIPTION OF LAND AND PLAN OF THE PREMISES

Lot 2, Block A, Riata Corporate Park Sec 1, according to the map or plat thereof in the Official
Public Records of Travis County Texas.

A-1

 

APPENDIX B

RULES AND REGULATIONS

     1. Tenant shall not place anything, or allow anything to be placed near the glass of any
window, door, partition or wall which may, in Landlord’s judgment, appear unsightly from outside of
the Building.

     2. The Building directory shall be available to Tenant solely to display names and their
location in the Building, which display shall be as directed by Landlord.

     3. The sidewalks, halls, passages, exits, entrances, elevators and stairways shall not be
obstructed by Tenant or used by Tenant for any purposes other than for ingress to and egress from
the Premises. Tenant shall lend its full cooperation to keep such areas free from all obstruction
and in a clean and sightly condition and shall move all supplies, furniture and equipment as soon
as received directly to the Premises and move all such items and waste being taken from the
Premises (other than waste customarily removed by employees of the Building) directly to the
shipping platform at or about the time arranged for removal therefrom. The halls, passages, exits,
entrances, elevators, stairways, balconies and roof are not for the use of the general public and
Landlord shall, in all cases, retain the right to control and prevent access thereto by all persons
whose presence in the judgment of Landlord, reasonably exercised, shall be prejudicial to the
safety, character, reputation and interests of the Building. Neither Tenant nor any employee or
invitee of Tenant shall go upon the roof of the Building.

     4. The toilet rooms, urinals, wash bowls and other apparatuses shall not be used for any
purposes other than that for which they were constructed, and no foreign substance of any kind
whatsoever shall be thrown therein, and to the extent caused by Tenant or its employees or
invitees, the expense of any breakage, stoppage or damage resulting from the violation of this rule
shall be borne by Tenant.

     5. Tenant shall not cause any unnecessary janitorial labor or services by reason of Tenant’s
carelessness or indifference in the preservation of good order and cleanliness.

     6. Tenant shall not install or operate any refrigerating, heating or air conditioning
apparatus (other than a household-type refrigerator), or carry on any mechanical business without
the prior written consent of Landlord; use the Premises for housing, lodging or sleeping purposes;
or permit preparation or warming of food in the Premises (warming of coffee and individual
meals with employees and guests excepted). Tenant shall not occupy or use the Premises or permit
the Premises to be occupied or used for any purpose, act or thing which is in violation of any
Governmental Requirement or which may be dangerous to persons or property.

     7. Tenant shall not bring upon, use or keep in the Premises or the Building any kerosene,
gasoline or inflammable or combustible fluid or material, or any other articles deemed
hazardous to persons or property, or use any method of heating or air conditioning other than that
supplied by Landlord.

B-1

 

     8. Landlord shall have sole power to direct electricians as to where and how telephone and
other wires are to be introduced. No boring or cutting for wires is to be allowed without the
consent of Landlord. The location of telephones, call boxes and other office equipment affixed to
the Premises shall be subject to the approval of Landlord.

     9. No additional locks shall be placed upon any doors, windows or transoms in or to the
Premises. Tenant shall not change existing locks or the mechanism thereof. Upon termination of the
lease, Tenant shall deliver to Landlord all keys and passes for offices, rooms, parking lot and
toilet rooms which shall have been furnished Tenant.

          In the event of the loss of keys so furnished, Tenant shall pay Landlord therefor. Tenant
shall not make, or cause to be made, any such keys and shall order all such keys solely from
Landlord and shall pay Landlord for any keys in addition to the two sets of keys originally
furnished by Landlord for each lock.

     10. Tenant shall not install linoleum, tile, carpet or other floor covering so that the same
shall be affixed to the floor of the Premises in any manner except as approved by Landlord.

     11. No furniture, packages, supplies, equipment or merchandise will be received in the Project
or carried up or down in any elevator, except between such hours and in such elevator as shall be
designated by Landlord, and with such padding or other precautions as may be required by Landlord.
Tenant shall not take or permit to be taken in or out of other entrances of the Building any item
normally taken in or out through any trucking concourse or service doors.

     12. Tenant shall cause all doors to the Premises to be closed and securely locked and shall
turn off all utilities, lights and machines before leaving the Building at the end of the day.

     13. Without the prior written consent of Landlord, Tenant shall not use the name of the
Building or the Project or any picture of the Building or the Project in connection with, or in
promoting or advertising the business of, Tenant, except Tenant may use the address of the Building
as the address of its business.

     14. Tenant shall cooperate fully with Landlord to assure the most effective operation of the
Premises’ or the Building’s heating and air conditioning, and shall refrain from attempting to
adjust any controls, other than room thermostats installed for Tenant’s use. Tenant shall keep
corridor doors closed.

     15. Tenant assumes full responsibility for protecting the Premises from theft, robbery and
pilferage, which may arise from a cause other than Landlord’s negligence, which includes keeping
doors locked and other means of entry to the Premises closed and secured.

     16. Peddlers, solicitors and beggars shall be reported to the office of the Project or as
Landlord otherwise requests.

     17. Tenant shall not advertise the business, profession or activities of Tenant conducted in
the Project in any manner which violates the letter or spirit of any code of ethics adopted by any
recognized association or organization pertaining to such business, profession or activities.

B-2

 

     18. No bicycle or other vehicle and no animals or pets shall be allowed in the Premises,
halls, freight docks, or any other parts of the Building except that blind persons may be
accompanied by “seeing eye” dogs. Tenant shall not make or permit any noise, vibration or odor to
emanate from the Premises, or do anything therein tending to create, or maintain, a nuisance, or
do any act tending to injure the reputation of the Building or the Project.

     19. Tenant acknowledges that Building or Project security problems may occur which may
require the employment of extreme security measures in the day-to-day operation of the Building or
the Project.

     Accordingly:

          (a) Landlord may, at any time, or from time to time, or for regularly scheduled time periods,
as deemed advisable by Landlord and/or its agents, in their sole discretion, require that persons
entering or leaving the Building or the Project identify themselves to watchmen or other employees
designated by Landlord, by registration, identification or otherwise.

          (b) Tenant agrees that it and its employees will cooperate fully with Building and Project
employees in the implementation of any and all security procedures.

          (c) Such security measures shall be the sole responsibility of Landlord, and Tenant shall have
no liability for any action taken by Landlord in connection therewith, it being understood that
Landlord is not required to provide any security procedures and shall have no liability for such
security procedures or the lack thereof.

     20. Tenant shall not do or permit the manufacture, sale, purchase, use or gift of any
fermented, intoxicating or alcoholic beverages without obtaining written consent of Landlord.

     21. Tenant shall not disturb the quiet enjoyment of any other tenant.

     22. Tenant shall not provide any janitorial services or cleaning without Landlord’s written
consent and then only subject to supervision of Landlord and at Tenant’s sole responsibility and by
janitor or cleaning contractor or employees at all times satisfactory to Landlord.

     23. Subject to the limitations set forth in the Lease, Landlord may retain a pass key to the
Premises and be allowed admittance thereto at all times to enable its representatives to examine
the Premises from time to time and to exhibit the same; and Landlord may place and keep on the
windows and doors of the Premises, during the last six (6) months of the Term, signs advertising
the Premises for Rent.

     24. No equipment, mechanical ventilators, awnings, special shades or other forms of window
covering shall be permitted either inside or outside the windows of the Premises without the prior
written consent of Landlord, and then only at the expense and risk of Tenant, and they shall be of
such shape, color, material, quality, design and make as may be approved by Landlord.

     25. Tenant shall not during the term of this Lease canvas or solicit other tenants of the
Building for any purpose, except in the ordinary course of Tenant’s business.

B-3

 

     26. Tenant shall not install or operate any phonograph, musical or sound- producing instrument
or device, radio receiver or transmitter, TV receiver or transmitter, or similar device in the
Building, nor install or operate any antenna, aerial, wires or other equipment inside or outside
the Building, nor operate any electrical device from which may emanate electrical waves which may
interfere with or impair radio or television broadcasting or reception from or in the Building or
elsewhere, without in each instance the prior written approval of Landlord. The use thereof, if
permitted, shall be subject to control by Landlord to the end that others shall not be disturbed.

     27. Tenant shall promptly remove all rubbish and waste from the Premises.

     28. Tenant shall not exhibit, sell or offer for sale, rent or exchange in the Premises or at
the Project any article, thing or service, except those ordinarily embraced within the use of the
Premises specified in Section 6 of this Lease, without the prior written consent of Landlord.

     29. Tenant may list all furniture, equipment and similar articles Tenant desires to remove
from the Premises or the Building and deliver a copy of such list to Landlord and procure a removal
permit from the Office of the Building authorizing Building employees to permit such articles to be
removed. If Tenant fails to provide such list to Landlord or otherwise procure a removal permit,
Landlord shall be entitled (but not obligated) to halt such removal until such time as Tenant
acknowledges such employee’s authority to remove such items.

     30. Tenant shall not overload any floors in the Premises or any public corridors or elevators
in the Building.

     31. Tenant shall not do any painting in the Premises, or mark, paint, cut or drill into, drive
nails or screws into, or in any way deface any part of the Premises or the Building, outside or
inside, without the prior written consent of Landlord, except as reasonably necessary in the
ordinary course of business or as commonly done in decorating or equipping office space, subject to
Section 5A of the Lease.

     32. Whenever Landlord’s consent, approval or satisfaction is required under these Rules, then
unless otherwise stated, any such consent, approval or satisfaction must be obtained in advance,
such consent or approval may be granted or withheld in Landlord’s sole discretion, and Landlord’s
satisfaction shall be determined in its sole judgment.

     33. Tenant and its employees shall cooperate in all fire drills conducted by Landlord in the
Building.

B-4

 

APPENDIX C

TENANT IMPROVEMENT AGREEMENT

     1. INITIAL IMPROVEMENTS. Landlord shall cause to be constructed, in a
good workmanlike manner,
the improvements (the “Initial Improvements”) in the Premises in accordance with plans and
specifications approved by Tenant and Landlord (the “Plans”), which approvals shall not be
unreasonably withheld. The Initial Improvements shall be performed at the Landlord’s cost.

     Landlord shall cause the Plans to be prepared by a professional architect, and mechanical and
electrical engineer(s) and based upon the space plans as shown on Appendix C-1 attached
hereto using building standard finishes. Within ten (10) business days after the later to occur of
(i) the mutual execution of the Lease or (ii) Tenant’s providing to Landlord the preliminary space
plans for the Premises and such other information reasonably required by Landlord to commence
preparation of the Plans, Landlord shall furnish the initial draft of the Plans to Tenant for
Tenant’s review and approval. Tenant shall, within ten (10) days after receipt, either provide
comments to such Plans or approve the same. Tenant shall be deemed to have approved such Plans if
it does not timely provide comments on such Plans. If Tenant provides Landlord with comments to
the initial draft of the Plans, Landlord shall provide revised Plans to Tenant incorporating
Tenant’s comments within one (1) week after receipt of Tenant’s comments. Tenant shall, within
five (5) business days after receipt, then either provide comments to such revised Plans or
approve such Plans. Tenant shall be deemed to have approved such revised Plans if Tenant does not
timely provide comments on such Plans. The process described above shall be repeated, if
necessary, until the Plans have been finally approved by Tenant and Landlord; provided, however,
if Landlord and Tenant cannot, despite using good faith efforts, reach agreement with respect to
the Plans by June 15, 2005, then either Landlord or Tenant may terminate this Lease upon delivery
of written notice to the other, whereupon (i) Landlord shall return to Tenant any prepaid Rent and
(ii) the parties shall have no further rights or obligations under this Lease. Landlord hereby
agrees that the Plans for the Initial Improvements shall comply with all applicable Governmental
Requirements.

     Once the Plans have been finally approved, Landlord will promptly prepare all necessary
construction drawings for the construction of the Initial Improvements. Upon the completion of
such construction drawings, Landlord shall submit the same to Tenant for its approval. Tenant
shall, within five (5) days after receipt, then either provide comments to such drawings or
approve the same. Tenant shall be deemed to have approved such drawings if Tenant does not timely
provide comments thereto. If Tenant timely provides any comments to such drawings, Landlord shall
revise such drawings and resubmit the same to Tenant for its review and approval. Until such time
as Landlord and Tenant mutually approve such construction drawings, the process described above
shall be repeated as reasonably necessary, and both Landlord and Tenant agree to act in good faith
in order to derive mutually acceptable construction drawings for the construction of the Initial
Improvements.

     Once the Plans and all construction drawings relative thereto have been finalized and
approved by Tenant and Landlord, Landlord shall promptly (i) submit the same to the appropriate
governmental authorities for the issuance of all necessary building permits, and (ii) select a
contractor to perform the construction of the Initial Improvements. Landlord shall use
commercially reasonable efforts to cause the Initial Improvements to be substantially completed,
except for

C-1

 

mechanical adjustments or minor details of construction (“Punch List Items”), on or before July 1,
2005 (the “Intended Completion Date”), subject to Tenant Delay (as defined in Section 4
hereof) and Force Majeure.

     2. CHANGE ORDERS. If, prior to the Commencement Date, Tenant shall require improvements or
changes (individually or collectively, “Change Orders”) to the Premises in addition to,
revision of, or substitution for the Initial Improvements, Tenant shall deliver to Landlord for its
approval plans and specifications for such Change Orders. If Landlord does not approve of the plans
for Change Orders, Landlord shall advise Tenant of the revisions required. Tenant shall revise and
redeliver the plans and specifications to Landlord within five (5) business days of Landlord’s
advice or Tenant shall be deemed to have abandoned its request for such Change Orders. Tenant shall
pay for all preparations and revisions of plans and specifications, and the construction of all
Change Orders.

     3. TURN KEY. Landlord shall complete the Initial Improvements on a “turn key” basis; provided,
however, Landlord has no obligation to pay for costs of (i) Change Orders or (ii) costs associated
with cabling, telecommunications equipment, furniture, appliances and Tenant’s move into the
Premises. Notwithstanding the foregoing, Landlord shall provide Tenant with a moving allowance of
up to $355,000.00 for Tenant’s moving expenses, which allowance shall be provided to Tenant within
ten (10) days after Tenant’s occupancy of the Premises.

     4. COMMENCEMENT DATE DELAY. The parties acknowledge and agree that the Commencement Date of
the Lease shall not occur prior to the date that the Initial Improvements have been substantially
completed (the “Completion Date”); provided, however, the Commencement Date shall not be
deferred to or beyond the Completion Date to the extent that any one or more of the following (a
“Tenant Delay”), has caused the Completion Date to occur after the Intended Completion
Date:

          (a) Tenant’s request for Change Orders to the extent such Change Orders actually cause a
delay; or

          (b) Contractor’s performance of any Change Orders, to the extent a delay results therefrom; or

          (c) Tenant’s request for materials, finishes or installations requiring unusually long lead
times; or

          (d) Tenant’s delay in reviewing, revising or approving plans and specifications beyond the
periods set forth herein; or

          (e) Tenant’s delay in providing information critical to the normal progression of the project.
Tenant shall provide such information as soon as reasonably possible, but in no event longer than
one week after receipt of such request for information from the Landlord; or

          (f) Tenant’s delay in making payments to Landlord for costs of the Change Orders; or

C-2

 

          (g) Any other act or omission by Tenant, its agents, contractors or persons employed by
any of such persons, to the extent a delay results therefrom.

          Landlord agrees to use reasonable efforts to notify Tenant of any circumstances or acts or
omissions of Tenant that constitute a Tenant Delay hereunder. If the Completion Date occurs after
the Intended Completion Date, and such delay has resulted from a Tenant Delay, then, for purposes
of this Lease, the Completion Date shall be deemed to be the date, determined in Landlord’s sole
discretion, on which the Initial Improvements would have been substantially completed but for any
Tenant Delay. For purposes hereof, the Initial Improvements shall be deemed to be “substantially
completed” at such time as Landlord has certified to Tenant that (i) Landlord has completed the
Initial Improvements in substantial conformance with the Plans, subject only to Punch List Items,
(ii) Landlord has tendered possession of the Premises to Tenant, and (iii) Landlord has obtained
any required certificates of occupancy necessary to permit Tenant to occupy the Premises.

          Landlord shall complete Punch List Items within thirty (30) days after the Commencement Date,
and, for a period of one (1) year after the Commencement Date, Landlord shall promptly repair or
correct any latent defects in the Initial Improvements, provided that Tenant gives Landlord
written notice thereof within said one-year period.

     5. ACCESS BY TENANT PRIOR TO COMMENCEMENT OF TERM. Landlord at its discretion may permit
Tenant and its agents to enter the Premises prior to the Completion Date to prepare the Premises
for Tenant’s use and occupancy. Any such permission shall constitute a license only, conditioned
upon Tenant’s:

          (a) working in harmony with Landlord and Landlord’s agents, contractors, workmen, mechanics
and suppliers and with other tenants and occupants of the Building;

          (b) obtaining in advance Landlord’s approval of the contractors proposed to be used by Tenant
and depositing with Landlord in advance of any work the contractor’s statement of the scope of work
to be performed (or a copy of its construction contract with Tenant) and the form of lien waivers
intended to be utilized by the contractor and all subcontractors and suppliers of material; and

          (c) furnishing Landlord with such insurance as Landlord may require against liabilities which
may arise out of such entry.

          Landlord shall have the right to withdraw such license for any reason upon twenty-four (24)
hours’ written notice to Tenant. Landlord shall not be liable in any way for any injury, loss or
damage which may occur to any of Tenant’s property or installations in the Premises prior to the
Commencement Date. Tenant shall protect, defend, indemnify and save harmless Landlord from all
liabilities, costs, damages, fees and expenses arising out of the activities of Tenant or its
agents, contractors, suppliers or workmen in the Premises or the Building. Any entry and
occupation permitted under this Section shall be governed by Section 5 and all other terms of the
Lease.

     6. MISCELLANEOUS. Terms used in this Appendix C shall have the meanings assigned to
them in the Lease. The terms of this Appendix C are subject to the terms of the Lease.

C-3

 

APPENDIX C-1

SPACE PLANS

C-4

 

APPENDIX D

MORTGAGES CURRENTLY AFFECTING THE PROJECT

Northwestern Mutual Life Insurance Co.

720 East Wisconsin Avenue

Milwaukee, WI 53202

Attention: Real Estate Investment Department

Reference Loan No. 332559

D-1

 

APPENDIX E

COMMENCEMENT DATE CONFIRMATION

Landlord: Carr Texas OP, LP, a Delaware limited partnership

Tenant: Centex Homes, a Nevada general partnership

     This Commencement Date Confirmation is made by Landlord and Tenant pursuant to that certain
Lease dated as of May 23, 2005 (the “Lease”) for certain premises known as Suites 100 and 200 in
the building commonly known as Riata Corporate Park Building 2 (the “Premises”). This Confirmation
is made pursuant to Item 9 of the Schedule to the Lease.

     1. Lease Commencement Date, Termination Date. Landlord and Tenant hereby agree
that the Commencement Date of the Lease is                     , 2005, and the Termination Date of
the Lease is                     , 200   .

     2. Acceptance of Premises. Tenant has inspected the Premises and affirms that the
Premises is acceptable in all respects in its current “as is” condition, subject only to latent
defects and Punch List Items, the correction of which Landlord shall complete in accordance with
the terms of the Lease.

     3. Incorporation. This Confirmation is incorporated into the Lease, and forms an
integral part thereof. This Confirmation shall be construed and interpreted in accordance with the
terms of the Lease for all purposes.

	 	 	 	 	 
	 	TENANT:

CENTEX HOMES, a Nevada general partnership

 	 
	 	By:  	Centex Real Estate Corporation, a Nevada corporation, its managing partner
 	 
	 
	 	 	 
	 	By:  	[Do Not Execute when Signing Lease]
 	 
	 	 	Name:  	 	 
	 	 	Title:  	 	 

E-2

 

	 	 	 	 	 

	 	 	 	 	 
	 	LANDLORD:

CARR TEXAS OP, LP, a Delaware limited partnership

 	 
	 	By:  	Carr Texas OP GP, LLC, a Delaware limited liability company, its general partner
 	 
	 
	 	 	 
	 	By:  	Carr Office Park, LLC, a Delaware limited liability company, its sole member
 	 
	 
	 	 	 
	 	By:  	CarrAmerica Realty Operating Partnership, LP, a Delaware limited partnership, its managing member
 	 
	 
	 	 	 
	 	By:  	CarrAmerica Realty
 	 
	 	 	Corporation, a Maryland
 corporation, its general partner 	 
	 	 	 	 
	 	 	 
	 	By:  	 	 
	 	 	Name:  	 	 
	 	 	Title:  	 	 
	 

E-3

 

APPENDIX F

SPECIAL PROVISIONS

1. EXTENSION OPTION. Subject to Subsection B below, Tenant may at its option extend the Term of
this Lease for two (2) periods of five (5) years each (each, a “Renewal Term”). Each Renewal Term
shall be upon the same terms contained in this Lease excluding Appendix C of this Lease and except
for the payment of Base Rent during the Renewal Term; and any reference in the Lease to the “Term”
of the Lease shall be deemed to include each Renewal Term and apply thereto, unless it is expressly
provided otherwise. Tenant shall have no additional extension options.

     A. The Base Rent during each Renewal Term shall be the Market Rate (defined hereinafter) for
such space for a term commencing on the first day of the Renewal Term. “Market Rate” shall mean the
then prevailing market rate for a comparable term commencing on the first day of the Renewal Term
for tenants of comparable size for comparable space (giving due consideration to existing tenant
improvements) in the Building and other first class office buildings in the vicinity of the
Building, as reasonably determined by Landlord.

     B. To exercise any option, Tenant must deliver a binding notice to Landlord not less than nine
(9) months prior to the expiration of the initial Term of this Lease. Thereafter, the Market Rate
for the Renewal Term shall be calculated pursuant to Subsection C below and Landlord shall inform
Tenant of the Market Rate. Such calculations shall be final and shall not be recalculated at the
actual commencement of the Renewal Term. If Tenant fails to timely give its notice of exercise,
Tenant will be deemed to have waived its option to extend.

     C. Market Rate shall be determined as follows:

     (i) If Tenant provides Landlord with its binding notice of exercise pursuant to
Subsection B above, within thirty (30) days of receipt of such notice, Landlord shall
calculate and inform Tenant of the Market Rate. If Tenant rejects the Market Rate as
calculated by Landlord, Tenant shall inform Landlord of its rejection within ten (10) days
after Tenant’s receipt of Landlord’s calculation, and Landlord and Tenant shall commence
negotiations to agree upon the Market Rate. If Tenant fails to timely reject Landlord’s
calculation of the Market Rate it will be deemed to have accepted such calculation. If
Landlord and Tenant are unable to reach agreement within fifteen (15) days after Landlord’s
receipt of Tenant’s notice of rejection, then the Market Rate shall be determined in
accordance with (ii) below.

     (ii) If Landlord and Tenant are unable to reach agreement on the Market Rate within
said fifteen (15) day period, then within five (5) days thereafter, Landlord and Tenant
shall each simultaneously submit to the other in a sealed envelope its good faith estimate
of the Market Rate. If the higher of such estimates is not more than one hundred five
percent (105%) of the lower, then the Market Rate shall be the average of the two.
Otherwise, the dispute shall be resolved by arbitration in accordance with (iii) and (iv)
below.

F-1

 

     (iii) Within seven (7) days after the exchange of estimates, the parties shall select
as an arbitrator an independent MAI appraiser with at least ten (10) years of experience in
appraising office space in the metropolitan area in which the Project is located (a
“Qualified Appraiser”). If the parties cannot agree on a Qualified Appraiser, then within a
second period of seven (7) days, each shall select a Qualified Appraiser and within ten
(10) days thereafter the two appointed Qualified Appraisers shall select a third Qualified
Appraiser and the third Qualified Appraiser shall be the sole arbitrator. If one party
shall fail to select a Qualified Appraiser within the second seven (7) day period, then the
Qualified Appraiser chosen by the other party shall be the sole arbitrator.

     (iv) Within twenty-one (21) days after submission of the matter to the arbitrator,
the arbitrator shall determine the Market Rate by choosing whichever of the estimates
submitted by Landlord and Tenant the arbitrator judges to be more accurate. The arbitrator
shall notify Landlord and Tenant of its decision, which shall be final and binding. If the
arbitrator believes that expert advice would materially assist him, the arbitrator may
retain one or more qualified persons to provide expert advice. The fees of the arbitrator
and the expenses of the arbitration proceeding, including the fees of any expert witnesses
retained by the arbitrator, shall be paid by the party whose estimate is not selected.
Each party shall pay the fees of its respective counsel and the fees of any witness called
by that party.

          D. Tenant’s option to extend this Lease is subject to the conditions that: (i) on the date
that Tenant delivers its binding notice exercising an option to extend, Tenant is not in default
under this Lease after the expiration of any applicable notice and cure periods, and (ii) except
to a Permitted Transferee, Tenant shall not have assigned the Lease, or sublet any portion of the
Premises under a sublease which is effective at any time during the final twelve (12) months of
the initial Term.

2. RIGHT OF FIRST REFUSAL. Subject to Subsection B below, and subject to any renewal options of
any current tenant in the Building (a “Prior Tenant”), Landlord hereby grants to Tenant for the
Term of the Lease a recurring right of first refusal to lease the portion of the first (1st) floor
of the Building immediately contiguous to the portion of the original Premises on the first (1st)
floor (collectively, the “RFR Space”), to be exercised in accordance with Subsection A below.

     A. In the event Landlord receives a bona fide offer or proposal from a third party to lease
all or a portion of the RFR Space acceptable to Landlord, which may be evidenced by a written
proposal from a prospective tenant detailing all substantive lease terms, Landlord shall so
notify Tenant (“Landlord’s RFR Notice”), identifying the available RFR Space and setting forth
the business terms of such offer or proposal. Tenant shall notify Landlord within five (5)
business days of receipt of Landlord’s RFR Notice whether it desires to lease such RFR Space on
the terms set forth in Landlord’s RFR Notice. If Tenant does not notify Landlord within said
5-day period that it will lease such RFR Space, Tenant shall have no further right of first
refusal for such RFR Space unless Landlord fails to enter into a lease for such RFR Space
substantially on such terms within six (6) months following Landlord’s RFR Notice, in which case
the RFR Space shall again be subject to Tenant’s right of first refusal as set forth herein after
such 6-month period. Furthermore, if at any time during the Lease Term the RFR Space or any
portion of it subsequently becomes available for rent, Tenant’s recurring right of first refusal
shall again become applicable with respect to such space. If Tenant exercises its right of first
refusal with respect to the RFR Space, such space shall be

F-2

 

added to the Premises for all purposes of this Lease on (a) the terms specified in Landlord’s RFR
Notice (except that the lease term for such RFR Space shall be coterminous with the Term of the
Lease), and (b) the terms of this Lease to the extent that they do not conflict with the terms
specified in Landlord’s RFR Notice.

     B. Tenant’s right of first refusal is subject to the conditions that: (i) on the date that
Tenant delivers its notice exercising its right of first refusal, Tenant is not in default under
this Lease after the expiration of any applicable notice and cure periods, and (ii) except to a
Permitted Transferee, Tenant shall not have assigned the Lease, or sublet any portion of the
Premises under a sublease which is in effect at any time during the period commencing with Tenant’s
delivery of its notice and ending on the date the RFR Space is added to the Premises.

     C. Promptly after Tenant’s exercise of its right of first refusal, Landlord shall execute and
deliver to Tenant an amendment to the Lease to reflect changes in the Premises, Base Rent, Tenant’s
Proportionate Share and any other appropriate terms changed by the addition of the RFR Space.
Within fifteen (15) business days thereafter, Tenant shall execute and return the amendment, or be
deemed not to have elected to exercise its right of first refusal as to the RFR Space, and Landlord
shall thereafter be free to lease the RFR Space to such third party offeror.

3. SIGNAGE.

     A. Subject to provisions of this Section 3, Landlord grants Tenant the nonexclusive right to
place a building sign identifying the tenancy of Tenant on the Building (the “Sign”). For purposes
of this Section and Tenant’s right to the Sign, “Tenant” shall mean only the original party who
signed this Lease on the execution date as the tenant.

     B. Tenant hereby covenants and agrees that:

     (i) The size, dimensions, material, content, design, construction, location and method
of installation of the Sign shall be as depicted on Schedule F-1 (location) and
Schedule F-2 (plans and specifications) attached hereto. Any changes or additions
to such exhibit shall require Landlord’s prior written consent;

     (ii) Tenant shall be responsible for ensuring that the Sign is in compliance with all
applicable codes, ordinances, statutes, rules and regulations, including any action or rule
of any landmark and/or historical commission having jurisdiction;

     (iii) Tenant, at its sole cost and expense, shall obtain and comply with all
consents, approvals and permits necessary from all governmental and quasi-governmental
authorities and landmark and/or historical commissions having jurisdiction;

     (iv) Tenant, at its sole cost and expense, shall insure the Sign as part of its
property and shall also carry liability and property damage insurance with respect to the
Sign in amounts equal to full replacement and reinstallation costs of the Sign; and

     (v) Tenant, at its sole cost and expense, shall clean and maintain the Sign on a
regular basis so as to ensure that the Sign retains an attractive appearance at all times.

F-3

 

     C. In addition to the
foregoing, Tenant shall:

     (i) Pay all costs
associated with creating, designing, manufacturing, installing,
cleaning, maintaining, repairing and replacing (if necessary) the Sign; and

     (ii) Be permitted to illuminate the Sign; provided, however, that Tenant pays all
costs of such illumination, which costs shall include, without limitation, the
installation, operation, maintenance, repair and replacement of bulbs and ballasts
(“Lighting Costs”). If any of the Lighting Costs are invoiced to Landlord, such
costs shall become immediately due upon invoice to Tenant therefor
from Landlord.

     D. In the event that Tenant:

     (i) Assigns the Lease (except as may be permitted under Paragraph 17G of the Lease);
or

     (ii) Is in default of the Lease beyond any applicable notice and cure periods;

Then, upon not less than thirty (30) days’ prior written notice, Landlord may, but is not required
to, terminate Tenant’s rights and privileges pursuant to this Section II and remove the Sign from
the Building.

     E. Upon the expiration or earlier termination of this Lease or of Tenant’s right to possession
of the Premises, or upon termination of Tenant’s rights and privileges in accordance with paragraph
D of this Section 2:

     (i) If Landlord desires that the Sign be removed, Tenant shall, at Tenant’s sole
cost and expense, remove the Sign and restore and repair all parts of the Building
affected by the installation or removal of the Sign to the condition existing prior to
its installation or to a condition otherwise reasonably acceptable to Landlord; or

     (ii) If Landlord does not then desire that the Sign be removed, such Sign shall
remain until such time as Landlord shall desire that it be removed, in which event
Landlord shall remove the Sign and repair and restore all damage caused by such removal,
and such removal, repair and restoration costs shall be deemed Additional Rent, due and
payable by Tenant upon invoice therefor from Landlord.

     F. Tenant’s rights hereunder shall be subject to the existing signage rights of other tenants
or occupants of the Building, and Landlord shall be permitted to grant to other tenants of the
Building the right to install signage on or in the Building.

4. TERMINATION RIGHT. To be effective on the last day of the sixtieth (60th) Lease Month
(“Termination Date”), so long as Tenant is not in default under this Lease, Tenant shall
have a one-time right (“Termination Right”) to terminate this Lease in its entirety by
timely providing Landlord written notice of Tenant’s exercise of such Termination Right (the
“Termination Notice”), and paying to Landlord the Termination Payment (defined below).
The Termination Notice must be

F-4

 

given to Landlord on or before the day which is six (6) months prior to the Termination Date. Once
exercised by Tenant, the Termination Right may not be revoked by Tenant without Landlord’s consent.
The Termination Payment must be paid by Tenant to Landlord within thirty (30) days following
Tenant’s receipt from Landlord of its calculation of the amount of the Termination Payment in order
for the Termination Notice to be effective. The failure of Tenant to timely give the Termination
Notice and/or pay the Termination Payment shall be deemed a waiver by Tenant of the Termination
Right.

     As used herein, “Termination Payment” shall mean a cash amount equal to the sum of
the (a) six (6) month’s Rent at the rate charged immediately prior to the Termination Date,
plus (b) the aggregate of the unamortized portions (as of the Termination Date) of (i)
costs incurred by Landlord in the construction and installation of the Tenant Improvements, (ii)
leasing commissions paid by Landlord in connection with this Lease, and (iii) moving costs
provided by Landlord to Tenant, such amortization being calculated by using a straight line method
over the Term of the Lease and a eight percent (8%) per annum interest factor. Notwithstanding the
foregoing, in the event that Tenant has exercised its right to lease any RFR Space in accordance
with the terms hereof, the Termination Payment shall also include such amounts relative to the RFR
Space.

F-5

 

APPENDIX G

CURRENT JANITORIAL SERVICES

	A.	 	Building Entrance/Main Lobby Area:

	 	1.	 	Daily/As Necessary

	 	a.	 	Thoroughly clean the entire glass entrance doors, including handles.
	 
	 	b.	 	Thoroughly dust all lobby furniture and fixtures.
	 
	 	c.	 	Remove all fingerprints, smudges, and dirt from all vertical surfaces within 72”
from floor.
	 
	 	d.	 	Thoroughly clean Directory Board.
	 
	 	e.	 	All carpeted areas shall be thoroughly vacuumed. Spot cleaned as
necessary. This shall include
walk-off mats if present.
	 
	 	f.	 	Hard surface floor areas shall be maintained in a manner which
consistently presents the appearance desired without visible evidence of
traffic patterns. Particular attention shall be paid to edges to ensure a
proper, dust free, consistent appearance. Any damage to the stone surface,
resulting from improper care, shall be the full responsibility of the
Contractor.
	 
	 	g.	 	All metal surfaces shall be maintained in a manner consistent
with the original intent of the manufacturer and the desires of Landlord or its
property manager.
	 
	 	h.	 	Thoroughly clean entire lobby area to include, but not limited to, dust/wipe down
work area,
empty trash receptacles, replace trash liner, clean telephone equipment, and
dust chairs. This area shall be maintained in a manner, which presents only
the highest quality impression possible.

	 	2.	 	Periodic

	 	a.	 	Strip, refinish, or otherwise maintain hard surface floor
finishes to ensure an appearance consistent with that desired by the architects
of the facility as requested by Landlord or its property manager.
	 
	 	b.	 	Thoroughly clean, monthly, in a manner specified by management,
all carpeted floor surfaces, including area carpets.
	 
	 	c.	 	Dust and damp wipe, to remove all residues on a quarterly
basis, all vertical surfaces above 72” in height. If special lift equipment is
necessary this item shall be considered a special request, outside the terms of
this Agreement.
	 
	 	d.	 	On a quarterly basis all air diffuses and light fixtures will
be thoroughly washed and wiped clean. If special lift equipment is necessary
this item shall be considered a special request outside the terms of this
Agreement.

	B.	 	Elevators:

	 	1.	 	Daily

	 	a.	 	Damp wipe, dust, and/or thoroughly clean, using the appropriate
chemicals and polishes, all exterior and interior doors, cab walls, door frames,
and indicator panels.
	 
	 	b.	 	Vacuum all carpeted floor surfaces to remove soil, loose debris,
and dust. Particular attention to be paid to edges. Spot clean as necessary.
	 
	 	c.	 	Maintain hard surface floors in a manner consistent with process
utilized in main lobby area. Appearance shall be consistent and free of
traffic/wear patterns.
	 
	 	d.	 	Clean and polish tracks, plates, and grooves.

	 	2.	 	Periodic

	 	a.	 	Dust inside of telephone cabinets weekly clean thoroughly weekly.

G-1

 

	 	b.	 	Thoroughly dust ceilings, light fixtures and ceiling finishes weekly.
	 
	 	c.	 	Shampoo carpets monthly or more often if necessary.

	C.	 	Tenant Occupied Areas:

	 	1.	 	Daily

	 	a.	 	Empty all waste baskets and reline with approved liner as necessary.
	 
	 	b.	 	Remove all waste to designated area.
	 
	 	c.	 	Dust all horizontal surfaces. Paper shall not be disturbed on desks.
	 
	 	d.	 	Clean all glass furniture tops.
	 
	 	e.	 	Vacuum all carpets.
	 
	 	f.	 	Sweep and damp mop all non-carpeted areas to produce a thoroughly clean
appearance.
	 
	 	g.	 	Damp wipe and clean all counters and tops of appliances in
kitchen areas, so long as those surfaces do not have any items on them. Dust
thoroughly.
	 
	 	h.	 	Thoroughly clean and polish all water coolers and fountains.
	 
	 	i.	 	Windows shall remain closed and locked.
	 
	 	j.	 	Venetian blinds shall remain in the position found or adjusted as requested.
	 
	 	k.	 	Spot clean carpeting in conjunction with Tenant’s carpet cleaning program.

	 	2.	 	Weekly

	 	a.	 	Detail vacuum all carpets, including under moveable furniture, with particular
attention to edges.
	 
	 	b.	 	Clean all window frames, sills, chair rails, convector tops,
picture frames, or frames of wall hangings within 72” of floor surface.
	 
	 	c.	 	High dust within 72” of floor.
	 
	 	d.	 	Clean all baseboards.

	 	3.	 	As Necessary

	 	a.	 	Clean doors, doorframes, walls, millwork, file cabinets,
nameplates, and switch plates to remove fingerprints, spills, and other
markings.
	 
	 	b.	 	Clean all metal trim work.
	 
	 	c.	 	Maintain all composition hard surface floors to ensure a scuff-free high gloss,
clean appearance.

	 	4.	 	Periodic

	 	a.	 	Dust all window blinds monthly.
	 
	 	b.	 	Clean all lighting and ventilation fixtures monthly.

	 	5.	 	Other

	 	a.	 	Remove all recyclable materials to designated areas as specified by Landlord or
its property manager.
	 
	 	b.	 	Lights shall be turned off and doors locked unless
specifically designated otherwise.
	 
	 	c.	 	Wash waste receptacles as designated by Landlord or its property manager.

	D.	 	Common Area Corridors and Elevator Lobbies:

	 	1.	 	Daily

	 	a.	 	All carpeted floor surfaces are to be vacuumed including edges and under
furniture.
	 
	 	b.	 	Baseboards shall be wiped with a treated dust cloth.
	 
	 	c.	 	Spot-clean carpet and baseboards as necessary.
	 
	 	d.	 	All hard surface floors shall be dust mopped, wet mopped, spray buffed, and
refinished as

G-2

 

	 	 	 	necessary to preserve and present a uniform appearance free of wear
patterns, stains, and scuffs.
	 
	 	e.	 	Washable wall surfaces shall be spot cleaned to remove all smudges, stains, and
handprints.
	 
	 	f.	 	Doors and doorframes shall be spot cleaned to remove hand-marks and stains. Dust
as necessary.
	 
	 	g.	 	Glass entrances and doors shall be spot cleaned to remove any fingerprints,
smudges, or stains.

	 
	 	h.	 	
 All metalwork, such as mail chutes, door hardware, metal
lettering, etc. shall be wiped clean and
polished as directed by management.

	 
	 	i.	 	
 Elevator doors and tracks shall be wiped
down, and polished if necessary, to remove all dust,
marks, and stains.

	 
	 	j.	 	Remove all debris from cigarette urns or ash receptacles, replacing materials as
necessary.
	 
	 	k.	 	 Dust furniture, accessories, ledges, and all other horizontal surfaces using a
treated cloth.
Vacuum upholstery as necessary.

	 	2.	 	Weekly

	 	a.	 	Thoroughly clean glass entrances and doors.

	 	3.	 	Monthly

	 	a.	 	Dust all areas not accomplished during daily maintenance
schedule. This shall include, but not be limited to, ledges, air diffuses,
vents, lights, etc.
	 
	 	b.	 	Thoroughly dust interior of fire extinguisher cabinet including
unit. Clean glass door if applicable.
	 
	 	c.	 	Dust Venetian blinds if applicable.

	 	4.	 	Quarterly

	 	a.	 	Dust and damp wipe, where necessary, all light lenses and
fixtures including exit lights. This does not include parabolic lenses.
	 
	 	b.	 	Wash and dry all air diffuses.

	E.	 	Restroom Facilities (Including tenant facilities):

	 	1.	 	Daily

	 	a.	 	Damp wipe with a mild, non-abrasive, approved germicidal
detergent all counter tops, doors, walls, door frames, kick plates, thresholds,
and partitions.
	 
	 	b.	 	Clean and polish towel and tissue dispensers, flushometers,
shelves, fixtures, and all other metal surfaces to remove all soil.
	 
	 	c.	 	Thoroughly clean all mirrored surfaces to a clean, streak-free, appearance.
	 
	 	d.	 	Empty and damp wipe all waste paper containers. Replace liner daily.
	 
	 	e.	 	Thoroughly clean sinks and polish fixtures.
	 
	 	f.	 	Toilets, toilet seats, and urinals shall be thoroughly cleaned using an approved
germicidal cleaner.
All stains, streaks, and deposits shall be removed. Clean, and polish all
bright work.
	 
	 	g.	 	Empty and thoroughly clean feminine product disposal receptacles and replace
liner.
	 
	 	h.	 	Sweep and wet mop floor using a germicidal detergent approved by Management.
Particular
attention shall be paid to corners and edges to prevent splashing and
build-up.
	 
	 	i.	 	Refill all toilet tissue, paper towel, sanitary napkins, soap, and toilet seat
cover dispensers using
Owner-approved products.
	 
	 	j.	 	Thoroughly clean all countertops to eliminate the buildup of soap residue and
calcium deposits.

	 	2.	 	Weekly

	 	a.	 	Thoroughly wash partitions and walls. Remove graffiti immediately
where possible. If not possible report to Landlord or its property manager.
	 
	 	b.	 	Thoroughly clean base of walls and edges.

G-3

 

	 	c.	 	Dust ventilating diffuses and light lenses.
	 
	 	d.	 	Pour water, and appropriate chemical, down floor drains to reduce odors.

	 	3.	 	Monthly

	 	a.	 	Machine scrub floors with particular attention paid to grout, corners, and edges.

	 	4.	 	Quarterly

	 	a.	 	Thoroughly wash walls, floors to ceiling, with approved
germicidal detergent. Wash doors and door frames.
	 
	 	b.	 	Polish countertops.

	 	5.	 	As Necessary, if Specified.

	 	a.	 	Apply approved seal and floor finish and maintain in a manner to ensure a clean,
scruff free,
appearance.

	F.	 	Trash Removal and Loading Dock
Responsibilities

	 	1.	 	Daily

	 	a.	 	All trash collected throughout facility shall be transported to, and deposited
in, receptacle
designated by Landlord or its property manager.

	 
	 	b.	 	
 Recyclable products shall be
collected by Contractor and deposited in receptacles designated by
Landlord or its property manager in accordance with recycling program of
facility. No mixing of
recycling products shall occur.
	 
	 	c.	 	Clean all debris from around trash receptacle area in loading dock area.
	 
	 	d.	 	Hose down, and police, around trash dumpster to remove spillage resulting from
trash removal.

	G.	 	Stairways

	 	1.	 	Interior tenant stairways shall be maintained in the same manner as tenant
occupied space including, but not limited to, the following on a daily basis;
thorough vacuuming, dusting of all surfaces, spot clean all glass surfaces, clean and
polish metal work, and spot clean carpets.
	 
	 	2.	 	Building exit stairways shall be policed daily to remove all debris, damp mop as
necessary to remove spills.
Weekly dust mop and damp mop landings and stairs, spray buff and refinish as
necessary to ensure a high gloss appearance. Spot clean and dust walls, handrails,
and fixtures as necessary. Dust lights, pipes, and signage monthly.

	H.	 	Special Projects/Periodics/Other

	 	1.	 	Schedule, through appropriate tenant representative, the thorough dusting of
desks, furniture; and other horizontal surfaces, otherwise inaccessible to nightly
maintenance as necessary.
	 
	 	2.	 	Maintain all tenant area hard surface floor areas as necessary to ensure a high gloss,
scuff free appearance.
	 
	 	3.	 	Dust and damp wipe all tenant area kitchens, copy rooms, and lounge counter tops and
appliances daily.
	 
	 	4.	 	Vacuum all walk-off mats thoroughly while in place. Spot clean as necessary.
Shampoo monthly or more often if necessary.
	 
	 	5.	 	Dust all exit lights monthly.

G-4

 

	 	6.	 	Contractor shall protect all carpeted areas, baseboards, walls, doors, and
elevator doors and frames while performing hard surface floor care.
	 
	 	7.	 	Respond fully to all requests of Landlord or its property manager and key
tenant representatives to any areas not otherwise covered under these specifications.

	I.	 	Metal Care (Optional, may be performed by another contractor)

	 	1.	 	Bronze/Brass Finishes

	 	a.	 	Wash all metal to remove dust, hand prints, or smudges daily
with clean water and using a soft towel or diaper-like cloth. Surface should
always be wiped with the grain of the metal.
	 
	 	b.	 	Handrails, control panels, call buttons, and other high wear
areas are to be waxed on a weekly basis with a pre-softened auto was and buffed
with a soft, diaper-like cloth. Do not allow wax to accumulate around,
and in, buttons on seams in the metal. All wiping of the surface should be with
the grain of the metal.
	 
	 	c.	 	All remaining metal surfaces shall be waxed, as in Item B above, semi-annually.
	 
	 	d.	 	To remove any stain which cannot be removed through washing
with clear water utilize only naphtha solvent. If stain is unable to be removed
in this manner, report it to Landlord or its property manager.

	 	2.	 	Stainless Steel Finishes

	 	a.	 	Wash all metal to remove dust, hand prints, or smudges daily
with clean water and using a soft towel or diaper-like cloth. Surface should
always be wiped with, the grain of the metal.
	 
	 	b.	 	Handrails, control panels, call buttons, and other high wear
areas are to be waxed on a weekly basis with a pre-softened auto was and buffed
with a soft, diaper-like cloth. Do not allow wax to accumulate around,
and in, buttons on seams in the metal. All wiping of the surface should be
with the grain of the metal.
	 
	 	c.	 	All remaining metal surfaces shall be waxed, as in Item B. above, semi-annually,
	 
	 	d.	 	To remove any stain which cannot be removed through washing
with clear water utilizing a neutral detergent. If stain is unable to be
removed in this manner, report it to Landlord or its property manager.

	J.	 	Qualifications

     Landlord shall maintain the Building in a manner consistent with comparable Class A buildings;
however, Landlord reserves the right, at Landlord’s sole discretion, to amend these specifications
from time to time without notice.

G-5Exhibit 10.1

Exhibit 10.1

Execution Draft

LOAN AGREEMENT

This Loan Agreement, dated as of May 28, 2010 (this “Agreement”), is entered into by and
between diaDexus, Inc., a Delaware corporation (the “Company”), and VaxGen, Inc., a Delaware
corporation (the “Lender”).

RECITALS

A. The Company and Lender have entered into an Agreement and Plan of Merger dated as of the
date hereof (as amended, supplemented or otherwise modified from time to time, the “Merger
Agreement”), pursuant to which a wholly-owned subsidiary of Lender would merge into and with the
Company and the Company would become a wholly-owned subsidiary of Lender (the “Merger”).

B. On the terms and subject to the conditions set forth herein, Lender is willing to purchase
from the Company, and the Company is willing to sell to Lender the promissory note described below.

D. Capitalized terms not otherwise defined herein shall have the meaning set forth in the form
of Note (as defined below) attached hereto as Exhibit A.

AGREEMENT

NOW THEREFORE, in consideration of the foregoing, and the representations, warranties, and
conditions set forth below, the parties hereto, intending to be legally bound, hereby agree as
follows:

1. The Loan.

(a) Issuance of Note. The Lender has agreed to lend to the Company up to Six Million
Dollars ($6,000,000.00) in principal (the “Total Loan Amount”) in return for a secured promissory
note in the form of Exhibit A hereto (the “Note”) and the grant of a security interest in certain
assets of the Company pursuant to that certain Security and Collateral Agency Agreement, dated as
of the date hereof (the “Security Agreement”), between Lender, in its capacity as a lender
hereunder and as collateral agent, the Company and the other lenders party thereto.

(b) Advances. Subject to and upon the terms and conditions set forth below, the
Company may request advances of funds under the Note (each, an “Advance”) in accordance with
Schedule 1 attached hereto (the “Schedule of Advances”) in an aggregate outstanding

 

 

 

amount not to exceed the Total Loan Amount, commencing on the date hereof. Each Advance to
the Company under the Note shall be subject to the satisfaction of the following conditions
precedent (unless waived in writing by the Lender): (i) each of the representations and warranties
contained in this Agreement and the Security Agreement must be true and accurate in all material
respects as of the date of such Advance, and (ii) the Company must have performed all of its
obligations to be performed as of the date of the requested Advance under this Agreement, the
Merger Agreement, the Note and the Security Agreement. The Lender’s obligation to make any
Advances shall terminate upon the earliest of: (1) consummation of the Merger, (2) the End Date
(as defined in the Merger Agreement), provided that, if Lender reasonably determines in
good faith that the Merger Agreement will not be consummated on or before the End Date, then the
Lender’s obligation to make further Advances shall terminate on October 28, 2010, and (3)
termination of the Merger Agreement for any reason.

(c) Use of Proceeds. The proceeds of the initial Advance shall be used to repay in
full all outstanding indebtedness and other obligations under that certain Loan and Security
Agreement, dated as of July 13, 2007 (the “Senior Loan Agreement”), by and among the Company,
Silicon Valley Bank, as agent, and the lenders party thereto, with any remaining amounts, and the
proceeds of any subsequent Advances, to be used for operating expenses of the Company.

(d) Payments of Advances. The Lender will make all Advances to the Company in
immediately available funds to an account for the benefit of the Company as specified by the
Company in writing prior to the date of such Advance. Advances, other than the initial Advance and
the second Advance, shall be at the discretion of Lender.

2. Representations and Warranties of the Company. Except as set forth on Schedule 2
hereto, the Company represents and warrants to the Lender that:

(a) Due Incorporation, Qualification, etc. The Company is a corporation duly
organized, validly existing and in good standing under the laws of the State of Delaware and has
all requisite corporate power and authority to carry on its business as presently conducted and as
currently proposed to be conducted. The Company is duly qualified to transact business and is in
good standing in each jurisdiction in which the failure so to qualify would have a material adverse
effect on its business or properties.

(b) Subsidiaries. The Company does not currently own or control, directly or
indirectly, any interest in any other corporation, partnership, trust, limited liability company,
association, or other business entity. The Company is not a participant in any joint venture,
partnership or similar arrangement. Since its inception, the Company has not consolidated or
merged with, acquired all or substantially all of the assets of, or acquired the stock of or any
interest in any corporation, partnership, limited liability company or other business entity.

(c) Authority. All corporate action on the part of the Company, its officers,
directors and stockholders necessary for the authorization, execution and delivery of the
Transaction Documents, and the performance of all obligations of the Company hereunder and

 

 

 

thereunder, has been taken, and the Transaction Documents, when executed and delivered by the
Company, shall constitute valid and legally binding obligations of the Company, enforceable against
the Company in accordance with their terms except as limited by applicable bankruptcy, insolvency,
reorganization, moratorium, fraudulent conveyance, and other laws of general application affecting
enforcement of creditors’ rights generally, as limited by laws relating to the availability of
specific performance, injunctive relief, or other equitable remedies.

(d)  Approvals and Filings. Except for applicable federal and state securities
filings, no consent, approval, order or authorization of, or registration, declaration or filing
with, any governmental authority or other person or entity (including, without limitation, the
shareholders of any person or entity) is required in connection with the execution and delivery of
the Transaction Documents executed by the Company and the performance and consummation of the
transactions contemplated thereby.

(e) Valid Issuance. The Note, when issued, sold and delivered in compliance with the
provisions of this Agreement, will be duly and validly issued; provided, however,
that the Note may be subject to restrictions on transfer under state and/or federal securities laws
and under the Transaction Documents.

(f) No Violation or Default; Non-Contravention. The Company is not in violation or
default of (i) any provisions of its certificate of incorporation or bylaws or (ii) any instrument,
judgment, order, writ, decree, lease, agreement, note, indenture, mortgage or contract to which it
is a party or by which it is bound or, to the best of its knowledge, any provision of federal or
state statute, rule or regulation applicable to the Company which violation or default would
materially adversely affect the Company’s business, operations, properties, assets or financial
condition, taken as a whole. The execution, delivery and performance of the Transaction Documents
and the consummation of the transactions contemplated hereby or thereby will not result in any such
violation or be in conflict with or constitute, with or without the passage of time and giving of
notice, either a default under any such provision, instrument, judgment, order, writ, decree,
lease, agreement, note, indenture, mortgage or contract or an event which results in any such
material violation or in the creation of any lien, charge or encumbrance upon any assets of the
Company or the suspension, revocation, impairment forfeiture or nonrenewal of any permit, license,
authorization or approval applicable to the Company, its business or operations or any of its
assets or properties that would have a material adverse effect on the Company.

(g) Litigation. There is no action, suit, proceeding or investigation pending or, to
the Company’s knowledge, currently threatened (i) against the Company or any of its subsidiaries
that questions the validity of the Transaction Documents or the right of the Company to enter into
them, or to consummate the transactions contemplated hereby or thereby, or (ii) against the Company
or, to the Company’s knowledge, any officer, director or employee of the Company that might result,
either individually or in the aggregate, in any material adverse change in the assets, condition,
prospects or affairs of the Company, financially or otherwise.

 

 

 

(h) Title to Property and Assets. The Company has good and marketable title to all of
its properties, intangible and tangible assets that it owns free and clear of all mortgages, liens,
loans, claims and encumbrances, except liens for current taxes and assessments not yet due and
minor liens and encumbrances which arise in the ordinary course of business and which do not, in
any case, in the aggregate, materially detract from the value or use of the property subject
thereto or materially impair the operations of the Company. With respect to the property and
assets it leases, the Company is in material compliance with such leases and holds a valid
leasehold interest free of all liens, claims or encumbrances.

3. Representations and Warranties of the Lender. The Lender hereby represents and
warrants to the Company as follows:

(a) Binding Obligation. The Lender has full legal capacity, power and authority to
execute and deliver this Agreement and to perform its obligations hereunder. This Agreement is a
valid and binding obligation of the Lender, enforceable in accordance with its terms, except as
limited by applicable bankruptcy, insolvency, reorganization, moratorium, fraudulent conveyance,
and other laws of general application affecting enforcement of creditors’ rights generally, as
limited by laws relating to the availability of specific performance, injunctive relief, or other
equitable remedies.

(b) Securities Law Compliance. The Lender has been advised that the Note has not
been registered under the Securities Act of 1933, as amended (the “Securities Act”) or any state
securities laws and, therefore, cannot be resold unless it is registered under the Securities Act
and applicable state securities laws or unless an exemption from such registration requirements is
available. The Lender is an “accredited investor” as such term is defined in Rule 501 of
Regulation D under the Securities Act.

4. Covenants of the Company.

(a) No New Indebtedness. Prior to the earliest of: (i) the Maturity Date (as set forth
in the Note) or (ii) the payment in full of all obligations pursuant to the Note, the Company shall
not without the consent of the Lender create, incur, assume or suffer to exist new Indebtedness
which is senior or equal in priority of payment to the Note except for the Secured Promissory
Notes. For purposes of hereof, “Indebtedness” means (a) indebtedness for borrowed money or the
deferred price of property or services, such as reimbursement and other obligations for surety
bonds and letters of credit (but excluding accounts payable in the ordinary course of business),
(b) obligations evidenced by notes, bonds, debentures or similar instruments, (c) capital lease
obligations, (d) any guarantees of, or other direct or indirect liability for the obligations of
another person, and (e) all obligations from any interest rate, currency or commodity swap
agreement, interest rate cap or collar agreement, or other agreement or arrangement designated to
protect against fluctuation in interest rates, currency exchange rates or commodity prices.

(b) Monthly and Quarterly Financials. The Company shall forward, or cause to be
forwarded to the Lender by electronic mail, followed promptly by a version in

 

 

 

writing, (a) the Company’s monthly financial statements prepared in accordance with GAAP
(subject to normal quarterly and year-end adjustments) as soon as available, and in any event
within twenty (20) days after the end of each month; and (b) the Company’s quarterly consolidated
and consolidating financial statements prepared in accordance with GAAP (including a quarterly
balance sheet, profit and loss statement and cash flow statement for such quarter) as soon as
available, and in any event within forty-five (45) days from the end of each quarter.

(c) Payments and Obligations to the Lender. The Company shall make all payments of
principal, interest and other charges as and when due under the Note, shall perform or comply with,
as the case may be, all of the other obligations under the Note and the Security Agreement, and
shall perform and comply in all respects with all applicable terms, conditions and covenants of
this Agreement, the Note and the Security Agreement.

(d) Other Debts; Taxes. The Company shall promptly make all payments of principal and
interest as and when due under any other Indebtedness of the Company and shall make payment of all
other payment obligations of the Company in excess of $10,000 individually within fifteen (15) days
of such payment obligations coming due and shall make payment of all other payment obligations of
the Company within thirty (30) days of such payments coming due; provided, however, that this
covenant shall not be construed as permitting any other Indebtedness of the Company or as
permitting the making of any payments on account of any other Indebtedness of the Company that are
not otherwise permitted by the terms and conditions of this Agreement. The Company will pay and
discharge all material taxes, assessments and governmental charges or levies imposed upon them or
upon their income or profits, or upon any properties belonging to them, prior to the date on which
material penalties attach thereto, and all lawful claims which, if unpaid, might reasonably be
expected to become a lien or charge upon any properties of the Company or cause a failure or
forfeiture of title thereto; provided, however, that the Company shall not be required to pay any
such tax, assessment, charge, levy or claim that is being contested in good faith and by proper
proceedings timely instituted and diligently conducted if they have maintained adequate reserves
with respect thereto in accordance with GAAP.

(e) No Distributions. Unless otherwise agreed in writing by Lender in advance or in
connection with severance or retention payments in connection with the Merger, the Company shall
not make any distributions of cash, securities or other property of the Company to any of its
equityholders, whether such distribution would be characterized as a dividend or otherwise.

(f) No Encumbrances. The Company shall not permit to exist against any of the
Collateral or any of its other material assets (if any) any lien, mortgage, pledge, security
interest, title retention device, or other encumbrance (collectively, “Liens”), except for those
(i) Liens arising pursuant to this Agreement, the Note, the Secured Promissory Notes and the
Security Agreement; (ii) Liens for taxes and assessments not delinquent or actively being
contested in good faith by the Company and for which the Company has adequate reserves; (iii)
deposits or pledges for goods or services made in the ordinary course of the Company’s

 

 

 

business; (iv) mechanics liens; (v) liens that are junior in right of payment and collection
and expressly subordinated to the Liens arising pursuant to this Agreement and the Security
Agreement; (vi) Liens in existence as of the date hereof under the Senior Loan Agreement, which
Liens will be released following the Company’s repayment in full of all outstanding indebtedness
and other obligations thereunder, which shall occur no later than the date of the first Advance
hereunder; (vii) non-exclusive licenses of Intellectual Property entered into in the ordinary
course of business, and (viii) statutory liens affecting real property of landlords of the Company
(collectively such Liens permitted by clauses (i) through (viii) hereof, “Permitted Liens”).

(g) No Payments of Other Debt. The Company shall not make any prepayments with
respect to any other Indebtedness except for outstanding indebtedness and other obligations under
the Senior Loan Agreement, and shall not make any payments in respect of the Secured Promissory
Notes, unless in either case all obligations then owing to the Lender under this Agreement, the
Note and the Security Agreement shall have been first paid and discharged and the Note shall have
been terminated and discharged in full; provided, however, that the Secured Promissory Notes may be
repaid prior thereto so long as (i) the Company Break-Up Fee shall have been paid in full (to the
extent any such fee is payable under the Merger Agreement) and (ii) such repayment of the Secured
Promissory Notes is made ratably among the Lender and each holder of the Secured Promissory Notes
in accordance with the percentage equivalent at such time of the aggregate unpaid principal amount
of the Note and each such holder’s Secured Promissory Note, divided by the combined aggregate
unpaid principal amount of the Note and all of the Secured Promissory Notes.

(h) No Sale, License or Other Disposal of Assets. The Company shall not in any
manner sell, convey, lease, license, transfer or dispose of any equitable, beneficial or legal
interest in any of the Collateral or any of the Company’s other material assets (if any), except
for equipment disposed of in the ordinary course of business for at least the estimated fair market
value of such equipment as determined in good faith by the Company’s board of directors and except
for Permitted Liens.

(i) No Transactions Outside the Ordinary Course. Unless otherwise consented to in
writing by the Lender, which consent shall not be unreasonably withheld, the Company shall not
enter into any agreements, obligations or commitments of any type, except (i) in the ordinary
course of business consistent with past practice or (ii) agreements, contracts or commitments which
involve payments by the Company which individually do not exceed $25,000, and which collectively do
not exceed $100,000.

(j) Compensation Matters. Unless otherwise consented to in writing by the Lender,
which consent shall not be unreasonably withheld, the Company shall not increase the compensation
payable or to become payable to its directors, officers or employees, except for increases in
salary or wages of employees who are not officers in accordance with past practices, or grant any
severance or termination pay to, or enter into any employment or severance agreement with, any
director, officer or other employee, or establish, adopt, enter into or amend any employee benefit
plan.

 

 

 

5. [Reserved.]

6. Miscellaneous.

(a) Waivers and Amendments. Any provision of this Agreement may be amended, waived or
modified only upon the written consent of the Company and the Lender.

(b) Governing Law. This Agreement and all actions arising out of or in connection with
this Agreement shall be governed by and construed in accordance with the laws of the State of
California, without regard to the conflicts of law provisions of the State of California or of any
other state.

(c) Survival. The representations, warranties, covenants and agreements made herein
shall survive the execution and delivery of this Agreement.

(d) Successors and Assigns. Subject to the restrictions on transfer described in
Sections 6(e) and 6(f) below, the rights and obligations of the Company and the Lender shall be
binding upon and benefit the successors, assigns, heirs, administrators and transferees of the
parties.

(e) Assignment by the Company. The rights, interests or obligations hereunder may not
be assigned, by operation of law or otherwise, in whole or in part, by the Company without the
prior written consent of the Lender.

(f) Entire Agreement. This Agreement together with Note, the Security Agreement, and
each instrument or other agreement executed and delivered in connection therewith (collectively,
“Transaction Documents”) constitute and contain the entire agreement among the Company and the
Lender with regard to the subject matter hereof, and supersede any and all prior agreements,
negotiations, correspondence, understandings and communications among the parties, whether written
or oral, respecting the subject matter hereof.

(g) Notices. All notices, requests, demands, consents, instructions or other
communications required or permitted hereunder shall in writing and faxed, mailed or delivered to
each party as follows: (i) if to the Lender, at 379 Oyster Point Blvd., South San Francisco, CA
94080, or at such other address as the Lender shall have furnished the Company in writing, or
(ii) if to the Company, at 343 Oyster Point Blvd., South San Francisco, CA 94080, or at such other
address or facsimile number as the Company shall have furnished to the Lender in writing. All such
notices and communications will be deemed effectively given the earlier of (i) when received,
(ii) when delivered personally, (iii) one business day after being delivered by facsimile (with
receipt of appropriate confirmation), (iv) one business day after being deposited with an overnight
courier service of recognized standing or (v) four days after being deposited in the U.S. mail,
first class with postage prepaid.

 

 

 

(h) Severability of this Agreement. If any provision of this Agreement shall be
judicially determined to be invalid, illegal or unenforceable, the validity, legality and
enforceability of the remaining provisions shall not in any way be affected or impaired thereby.

(i) Counterparts. This Agreement may be executed in one or more counterparts, each of
which will be deemed an original, but all of which together will constitute one and the same
agreement. Facsimile copies of signed signature pages will be deemed binding originals.

[Remainder of page intentionally blank]

 

 

 

The parties have caused this Loan Agreement to be duly executed and delivered by their proper
and duly authorized officers as of the date and year first written above.

	 	 	 	 	 
	 	COMPANY:

diaDexus, Inc.

 	 
	 	By:  	/s/ David Foster
 	 
	 	 	Name:  	David Foster 	 
	 	 	Title:  	EVP, CFO 	 

	 	 	 	 	 
	 	LENDER:

VaxGen, Inc.

 	 
	 	By:  	/s/ James P. Panek
 	 
	 	 	Name:  	James P. Panek 	 
	 	 	Title:  	EVP, CFO 	 

 

 

 

	 	 	 	 	 

SCHEDULE 1

SCHEDULE OF ADVANCES UNDER THE NOTE

	 	 	 	 	 	 	 
	Advance	 	Advance Date	 	Advance Amount	 
	Initial Advance
	 	May 28, 2010	 	$	3,000,000	 
	Second Advance
	 	June 28, 2010	 	$	1,000,000	 
	Third Advance
	 	July 28, 2010	 	$	1,000,000	 
	Fourth Advance
	 	August 27, 2010	 	$	1,000,000	 

	 	•	 	The Second Advance will be provided, upon the request of the Company, at any time after
the Advance Date set forth above for such Advance.
	 
	 	•	 	The Third and Fourth Advances will be provided, at Lender’s sole and absolute
discretion, upon the request of the Company at any time after the Advance Date set forth
above for such Advance.

 

 

 

EXHIBIT A

SECURED PROMISSORY NOTE

	 	 	 	 	 
	 

	 	$6,000,000
	 	May 28, 2010

For value received diaDexus, Inc., a Delaware corporation (the “Company”), promises
to pay to VaxGen, Inc., a Delaware corporation (together with its successors and assigns,
“Lender”), the principal sum of up to SIX MILLION DOLLARS ($6,000,000.00), or such lesser amount as
may be advanced hereunder (the “Commitment Amount”), together with simple interest on the
outstanding principal amount from time to time outstanding hereunder at the rate of 10% per annum.
Interest shall commence with the date hereof and shall continue on the outstanding principal until
paid in full. Interest shall be paid on the Maturity Date (as defined below). Interest shall be
computed on the basis of a year of 365 days for the actual number of days elapsed.

1. Loan Agreement. This note (the “Note”) is issued to Lender pursuant to the terms
of that certain Loan Agreement dated as of May 28, 2010 (the “Loan Agreement”) by and between the
Company and Lender. Capitalized terms used herein and not otherwise defined shall have the
meanings set forth in the Loan Agreement.

2. Currency. All payments of interest and principal shall be in lawful money of the
United States of America. All payments shall be applied first to accrued interest, and thereafter
to principal.

3. Secured Note. The obligations under this Note shall be secured by the Collateral
(as defined in the Security Agreement).

4. Payment on Maturity Date. The entire outstanding principal balance and all unpaid
accrued interest shall become fully due and payable on the Maturity Date. As used herein,
“Maturity Date” means the earliest of: (a) the earlier of (i) the last day of the twelfth full
calendar month following the date of termination of the Merger Agreement and (ii) the consummation
of a Company Acquisition Transaction (as defined in the Merger Agreement), (b) the stated maturity
of the Secured Promissory Notes as amended from time to time, (c) immediately upon an Event of
Default under Section 7(f) or (g) as set forth below, and (d) immediately upon notice of
acceleration given by the Lender following an Event of Default under Section 7(a) through (e)
below. Upon consummation of the Merger in accordance with the terms of the Merger Agreement, all
obligations under the Note shall be forgiven without further action on the part of the Company or
Lender.

5. Fees. In the event of any default hereunder, Company shall pay all reasonable
attorneys’ fees and court costs incurred by Lender in enforcing and collecting this Note.

 

 

 

6. Prepayment. The Company may prepay this Note at any time.

7. Event of Default. The occurrence of any one or more of the following shall
constitute an “Event of Default”:

(a) Company fails to pay timely any of the principal amount due under this Note on the date
the same becomes due and payable or any accrued interest or other amounts due under this Note on
the date the same becomes due and payable;

(b) Company shall materially default in its performance of any covenant under Section 4 of the
Agreement;

(c) Company shall materially default in its performance of any other covenant under the
Agreement, or under this Note or the Security Agreement, in each case which breach is not cured
within 15 days after receipt of notice of such breach from Lender;

(d) An “Event of Default” shall have occurred under, and as defined in, any of those certain
Secured Promissory Notes issued pursuant to that certain Note Purchase Agreement, dated as of the
date hereof, among the Company and the investors party thereto (the “Secured Promissory Notes”);

(e) Company shall commit a breach of the Merger Agreement which would permit the termination
of the Merger Agreement by Lender pursuant to Section 7.1(e) of the Merger Agreement, whether or
not the Merger Agreement is in fact so terminated;

(f) Company files any petition or action for relief under any bankruptcy, reorganization,
insolvency or moratorium law or any other law for the relief of, or relating to, debtors, now or
hereafter in effect, or makes any assignment for the benefit of creditors or takes any corporate
action in furtherance of any of the foregoing; or

(g) An involuntary petition is filed against Company (unless such petition is dismissed or
discharged within sixty (60) days under any bankruptcy statute now or hereafter in effect) or a
custodian, receiver, trustee, assignee for the benefit of creditors (or other similar official) is
appointed to take possession, custody or control of any property of Company.

8. Waivers. Company hereby waives demand, notice, presentment, protest and notice of
dishonor.

9. Governing Law. This Note shall be governed by and construed under the laws of the
State of California, as applied to agreements among California residents, made and to be performed
entirely within the State of California, without giving effect to conflicts of laws principles.

[Remainder of page intentionally blank]

 

 

 

The Company has caused this Note to be executed and delivered as of the date first set forth
above.

	 	 	 	 	 
	 	diaDexus, Inc.

 	 
	 	By:  	/s/ David Foster
 	 
	 	 	Name:  	David Foster 	 
	 	 	Title:  	EVP, CFO

Source: [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00174-of-00352.parquet"}, [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00174-of-00352.parquet"}]]