Landlord Indemnity. Under no circumstance shall Tenant be liable for, and Landlord shall indemnify, defend, protect and hold harmless Tenant and Tenant's Agents from and against, all losses, costs, claims, liabilities and damages (including attorneys’ and consultants’ fees) arising out of any Hazardous Materials that exist in, on or about the Project as of the date hereof, or Hazardous Material Released by Landlord or any Landlord Parties. Landlord will provide Tenant with any Hazardous Material reports relating to the Building that Landlord has in its immediate possession. The provision of such reports shall be for informational purposes only, and Landlord does not make any representation or warranty as to the correctness or completeness of any such reports.

Landlord Default. Landlord shall be in default under this Lease if Landlord fails to perform any of its obligations hereunder following the Lease Commencement Date and such failure continues for thirty (30) days after Tenant delivers to Landlord written notice specifying such failure; however, if such failure cannot reasonably be cured within such 30-day period, but Landlord commences to cure such failure within such 30-day period and thereafter diligently pursues the curing thereof to completion, then Landlord shall not be in default hereunder or liable for damages therefor. Except where the provisions of this Lease grant Tenant an express, exclusive remedy, or expressly deny Tenant a remedy, Tenant's exclusive remedy for Landlord's failure to perform its obligations under this Lease shall be limited to damages, injunctive relief, or specific performance; in each case, Landlord's liability or obligations with respect to any such remedy shall be limited as provided in Section 29.13.

Landlord Exculpation. The liability of Landlord or the Landlord Parties to Tenant for any default by Landlord under this Lease or arising in connection herewith or with Landlord's operation, management, leasing, repair, renovation, alteration or any other matter relating to the Project or the Premises shall be limited solely and exclusively to an amount which is equal to the lesser of # the interest of Landlord in the Project or # the equity interest Landlord would have in the Project if the Project were encumbered by third-party debt in an amount equal to eighty percent (80%) of the value of the Project (as such value is determined by Landlord), including any rental, condemnation, sales and insurance proceeds received by Landlord or the Landlord Parties in connection with the Project, Building or Premises. No Landlord Parties (other than Landlord) shall have any personal liability therefor, and Tenant hereby expressly waives and releases such liability on behalf of itself and all persons claiming by, through or under Tenant. The limitations of liability contained in this Section 29.13 shall inure to the benefit of Landlord's and the Landlord Parties' present and future partners, beneficiaries, officers, directors, trustees, shareholders, agents and employees, and their respective partners, heirs, successors and assigns. Under no circumstances shall any present or future partner of Landlord (if Landlord is a partnership), or trustee or beneficiary (if Landlord or any partner of Landlord is a trust), have any liability for the performance of Landlord's obligations under this Lease. Notwithstanding any contrary provision herein, neither Landlord nor the Landlord Parties shall be liable under any circumstances for injury or damage to, or interference with, Tenant's business, including but not limited to, loss of profits, loss of rents or other revenues, loss of business opportunity, loss of goodwill or loss of use, in each case, however occurring, or loss to inventory, scientific research, scientific experiments, laboratory animals, products, specimens, samples, and/or scientific, business, accounting and other records of every kind and description kept at the premises and any and all income derived or derivable therefrom.

Landlord Representations. Landlord represents and warrants to Tenant that # no third party consent is required for the execution and performance of this Agreement by Landlord, # to Landlord’s actual knowledge, on the effective date hereof, Tenant is not in default under the Lease and Landlord has no claims against Tenant, # Landlord has the full right and authority to enter into this Agreement and the transactions contemplated herein and the person signing this Agreement and any other document or instrument contemplated hereby on behalf of Landlord is duly authorized to do so, and # this Agreement and all other documents to be executed by Tenant landlord in connection herewith are legal, valid, and binding obligations of Landlord and are enforceable against Landlord in accordance with their respective terms. Landlord acknowledges that Tenant is relying on the foregoing representations and warranties in entering into this Agreement and that such representations shall survive the termination of the Lease.

Landlord Indemnification. Landlord shall indemnify, defend by counsel reasonably acceptable to Tenant, protect and hold Tenant and its directors, shareholders, investment managers, partners, lenders, members, managers, contractors, affiliates, employees, trustees, principals, beneficiaries, officers, mortgagees and agents (collectively “Tenant Indemnitees”) harmless from and against any and all Losses incurred by Tenant Indemnitees to the extent caused by # the negligence or willful misconduct of Landlord or any other Landlord Party and not covered by the insurance required to be carried by Tenant hereunder or # the gross negligence or willful misconduct of Landlord or any other Landlord Party.

Landlord Obligations. Subject to reimbursement as an Operating Expense to the extent permitted under Paragraph 7, Landlord shall maintain in first class condition and repair, reasonable wear and tear excepted each of the following # the structural and non-structural portions of the roof of the Building, including the roof coverings; # the foundations, columns, footings, load-bearing walls, sub-flooring, and all pipes and conduits to the point of entry into the Building; # the exterior walls of the Building, including, without limitation, any painting, sealing, patching and waterproofing of such walls and the repairing, resealing, cleaning and replacing of the exterior windows, # the Base Building Systems; # the elevators and # the pavement, landscaping, sprinkler systems, sidewalks, driveways, curbs, and lighting systems in the Common Areas (including the Parking Facilities). The term “exterior walls” as used herein shall not include windows, glass or plate glass, doors, special store fronts or office entries. Any damage caused by or repairs necessitated by any negligence or act of Tenant or Tenant Parties may be repaired by Landlord at Landlord’s option and Tenant’s expense. Notwithstanding the foregoing, if any such repair or maintenance is necessary due to the act or omission of Tenant or any Tenant Party, Tenant shall pay the cost of such work. Tenant shall immediately give Landlord written notice of any defect or need of repairs in such components of the Building for which Landlord is responsible, after which Landlord shall have a reasonable opportunity and the right to enter the Premises at all reasonable times to repair same. Landlord’s liability with respect to any defects, repairs, or maintenance for which Landlord is responsible under any of the provisions of this Lease shall be limited to the cost of such repairs or maintenance, and there shall be no abatement of rent and no liability of Landlord by reason of any interference with Tenant’s business arising from the making of repairs, alterations or improvements in or to any portion of the Premises, the Building or the Project or to fixtures, appurtenances or equipment in the Building.

Landlord Responsible. Landlord, at its expense, shall construct the Base Building Improvements.

Landlord Exculpation. Without limiting the provisions of Section 16.1 of the Lease, Tenant assumes full responsibility for protecting from theft or damage the Equipment and any other tools or equipment that Tenant may use in connection with the installation, operation, use, repair, maintenance or removal of the Equipment, assumes all risk of theft, loss or damage, and waives all Claims with respect thereto against Landlord and the other Landlord Parties, including any Claims caused by any active or passive act, omission or neglect of any Landlord Party or by any act or omission for which liability without fault or strict liability may be imposed, except only, with respect to any Landlord Party, to the extent such injury, death or damage is caused by the negligence or willful misconduct of such Landlord Party and not covered by the insurance required to be carried by Tenant under the Lease or except to the extent such limitation on liability is prohibited by Applicable Laws. Further, in no event shall Landlord or any Landlord Parties be liable under any circumstances for any consequential or punitive damages or for injury or damage to, or interference with, Tenant’s business, including loss of profits, loss of rents or other revenues, loss of business opportunity, loss of goodwill or loss of use, resulting from damage to or any failure or interruption of use of the Equipment, however occurring.

Landlord Delay. A “Landlord Delay” shall be defined as any act or wrongful omission by Landlord or any agent, employee, consultant, contractor or subcontractor of Landlord which causes an actual delay in the Substantial Completion of Tenant’s ES Fitout. Notwithstanding the foregoing, no event shall be deemed to be a Landlord Delay until and unless Tenant has given Landlord written notice (the “Landlord Delay Notice”) advising Landlord # that a Landlord Delay is occurring, # of the basis on which Tenant has determined that a Landlord Delay is occurring, and # the actions which Tenant believes that Landlord must take to eliminate such Landlord Delay, and Landlord has failed to dispute such asserted delay or to correct the Landlord Delay specified in the Landlord Delay Notice within three (3) business days following receipt thereof. No period of time prior to expiration of such 3-business day period shall be included in the period of

ENTRY BY LANDLORD. Landlord reserves the right at all reasonable times and upon at least twenty-four (24) hours’ prior notice to Tenant (except in the case of an emergency) to enter the Premises to # inspect them; # show the Premises to prospective purchasers, or to current or prospective mortgagees, ground or underlying lessors or insurers or, during the last twelve (12) months of the Lease Term, to prospective tenants; # post notices of nonresponsibility (to the extent applicable pursuant to then Applicable Law); or # alter, improve or repair the Premises or the Building, or for structural alterations, repairs or improvements to the Building or the Building's systems and equipment. Landlord may make any such entries without the abatement of Rent, except as otherwise provided in this Lease, and may take such reasonable steps as required to accomplish the stated purposes. In an emergency, Landlord shall have the right to use any means that Landlord may deem proper to open the doors in and to the Premises. Any entry into the Premises by Landlord in the manner hereinbefore described shall not be deemed to be a forcible or unlawful entry into, or a detainer of, the Premises, or an actual or constructive eviction of Tenant from any portion of the Premises.

Landlord Waivers. In the case of # each headquarters location of the Loan Parties, each other location where any significant administrative or governmental functions are performed and each other location where the Loan Parties maintain any books or records (electronic or otherwise) and # any personal property Collateral located at any other premises leased by a [[Loan Party:Organization]] containing personal property Collateral with a value in excess of $500,000, the Loan Parties will provide the [[Administrative Agent:Organization]] with such estoppel letters, consents and waivers from the landlords on such real property to the extent # requested by the [[Administrative Agent:Organization]] and # the Loan Parties are able to secure such letters, consents and waivers after using commercially reasonable efforts (such letters, consents and waivers shall be in form and substance reasonably satisfactory to the [[Administrative Agent:Organization]], it being acknowledged and agreed that any landlord waiver in the form of Exhibit N is satisfactory to the [[Administrative Agent:Organization]]).

The Landlord (or the Landlord’s authorized agent or representative) may enter the Premises under the following circumstances: in case of emergency, to make necessary or agreed on repairs, alterations, or improvements; to supply necessary or agreed on services; and to show the Premises to prospective or actual purchasers, tenants, workers, or contractors. The Landlord may also enter the Premises annually to inspect them for safety or maintenance problems. Except in cases of emergency, Tenant abandonment of the Premises, court order, or where it is impracticable to do so, and in the event of an extended absence as described in section XIII, the Landlord shall give the Tenant at least the minimum notice required by state law before entering and will enter the Premises only during normal business hours.

Notices to Landlord. Tenant shall notify Landlord in writing as soon as possible but in no event later than five (5) days after # the occurrence of any actual, alleged or threatened Release of any Hazardous Material in, on, under, from, about or in the vicinity of the Premises (whether past or present), regardless of the source or quantity of any such Release, or # Tenant becomes aware of any regulatory actions, inquiries, inspections, investigations, directives, or any cleanup, compliance, enforcement or abatement proceedings (including any threatened or contemplated investigations or proceedings) relating to or potentially affecting the Premises, or # Tenant becomes aware of any claims by any person or entity relating to any Hazardous Materials in, on, under, from, about or in the vicinity of the Premises, whether relating to damage, contribution, cost recovery, compensation, loss or injury. Collectively, the matters set forth in [clauses (i), (ii) and (iii) above] are hereinafter referred to as "Hazardous Materials Claims". Tenant shall promptly forward to Landlord copies of all orders, notices, permits, applications and other communications and reports in connection with any Hazardous Materials Claims. Additionally, Tenant shall promptly advise Landlord in writing of Tenant’s discovery of any occurrence or condition on, in, under or about the Premises that could subject Tenant or Landlord to any liability, or restrictions on ownership, occupancy, transferability or use of the Premises under any "Environmental Laws," as that term is defined below. Tenant shall not enter into any [[Organization A:Organization]] proceeding or other action, settlement, consent decree or other compromise with respect to any Hazardous Materials Claims without first notifying Landlord of Tenant’s intention to do so and affording Landlord the opportunity to join and participate, as a party if Landlord so elects, in such proceedings and in no event shall Tenant enter into any agreements which are binding on Landlord or the Premises without Landlord’s prior written consent. Landlord shall have the right to appear at and participate in, any and all [[Organization A:Organization]] or other administrative proceedings concerning any Hazardous Materials Claim. For purposes of this Lease, "Environmental Laws" means all applicable present and future laws relating to the protection of human health, safety, wildlife or the environment, including, without limitation, # all requirements pertaining to reporting, licensing, permitting, investigation and/or remediation of emissions, discharges, Releases, or threatened Releases of Hazardous Materials, whether solid, liquid, or gaseous in nature, into the air, surface water, groundwater, or land, or relating to the manufacture, processing, distribution, use, treatment, storage, disposal, transport, or handling of Hazardous Materials; and # all requirements pertaining to the health and safety of employees or the public. Environmental Laws include, but are not limited to, the Comprehensive Environmental Response, Compensation and Liability Act of 1980, 42 USC § 9601, et seq., the Hazardous Materials Transportation Authorization Act of 1994, 49 USC § 5101, et seq., the Solid Waste Disposal Act, as amended by the Resource Conservation and Recovery Act of 1976, and Hazardous and Solid Waste Amendments of 1984, 42 USC § 6901, et seq., the Federal Water Pollution Control Act, as amended by the Clean Water Act of 1977, 33 USC § 1251, et seq., the Clean Air Act of 1966, 42 USC § 7401, et seq., the Toxic Substances Control Act of 1976, 15 USC § 2601, et seq., the Safe Drinking Water Act of 1974, 42 USC §§ 300f through 300j, the Occupational Safety and Health Act of 1970, as amended, 29 USC § 651 et seq., the Oil Pollution Act of 1990, 33 USC

Landlord Repair Obligations. Landlord shall be responsible, as a part of Operating Expenses, for repairs to and routine maintenance of the Building including without limitation: # exterior windows, window frames, window casements (including the repairing, resealing, cleaning and replacing of exterior windows); # exterior doors, door frames and door closers; # the Building (as opposed to the Premises) and Project plumbing, sewer, drainage, electrical, fire protection, life safety and security systems and equipment, existing heating, ventilation and air- conditioning systems, and all other mechanical and HVAC systems and equipment (collectively, the "Building Systems"), # the exterior glass, exterior walls, foundation and roof of the Building, the structural portions of the floors of the Building, including, without limitation, any painting, sealing, patching and waterproofing of exterior walls, and # repairs to the elevator in the Building and underground utilities, except to the extent that any such repairs are required due to the negligence or willful misconduct of Tenant (the "Landlord Repair Obligations"); provided, however, that if such repairs are due to the negligence or willful misconduct of Tenant, Landlord shall nevertheless make such repairs at Tenant's expense, or, if covered by Landlord's insurance, Tenant shall only be obligated to pay any deductible in connection therewith. Costs expended by Landlord in connection with the Landlord Repair Obligations shall be included in Operating Expenses to the extent allowed pursuant to the terms of Article 4, above. Landlord shall cooperate with Tenant to enforce any warranties that Landlord holds that could reduce Tenant's maintenance obligations under this Lease.

Landlord’s Proposal. Not later than one hundred twenty (120) days after Tenant has given valid notice of exercise of the applicable Extension Option, Landlord shall deliver to Tenant a good faith written proposal of the Prevailing Market Rate for the Premises for such Extension Term. At Tenant’s request, Landlord and Tenant shall meet to discuss the basis of Landlord’s proposed Prevailing Market Rate. Within forty five (45) days after receipt of Landlord’s proposal, Tenant shall notify Landlord in writing # that Tenant accepts Landlord’s proposal or # that Tenant elects to submit the determination of Prevailing Market Rate to arbitration in accordance with Paragraph 3.3.6. If Tenant does not give Landlord a timely notice in response to Landlord’s proposal, Landlord’s proposal of Prevailing Market Rate for the applicable Extension Term shall be binding upon Tenant.

Landlord’s Insurance. All insurance maintained by Landlord shall be for the sole benefit of Landlord and under Landlord’s sole control. Landlord shall keep in force throughout the Term commercial general liability insurance for the Common Areas and all risk or special form coverage insuring the Landlord and the Building, in such amounts and with such deductibles as Landlord determines in its sole discretion from time to time in accordance with sound and reasonable risk management principles. The cost of all such insurance is included in Operating Expenses. Landlord shall not be obligated to insure, and shall have no responsibility whatsoever for any damage to, any furniture, machinery, goods, inventory or supplies, or other personal property or fixtures which Tenant may keep or maintain in the Premises, or the Tenant Improvements or any Alterations made by or for Tenant during the Term.

Landlord’s Allowance. For purposes of this Paragraph 3, the Third Floor Additional Premises and the Fourteenth Floor Additional Premises are sometimes referred to collectively as the “Additional Premises” and the Third Floor Alterations and the Fourteenth Floor Alterations are sometimes referred to collectively as the “Additional Premises Alterations.” Landlord shall contribute toward the cost of the design, construction and installation of the Additional Premises Alterations an amount not to exceed Thirty Six Thousand Dollars ($36.000.00) (“Landlord’s Allowance”). No portion of Landlord’s Allowance may # be applied to the cost of any other equipment or furniture, or trade fixtures, moving expenses, signage or free rent, # be applied to any portion of the Additional Premises which is then the subject of a sublease, or # be used to prepare any portion of the Additional Premises for a proposed subtenant or assignee. Notwithstanding anything to the contrary in this Paragraph 3, Landlord’s Allowance shall be available for disbursement pursuant to the terms hereof only until December 31, 2010 (the “Forfeit Date”). Accordingly, if any portion of Landlord’s Allowance has not been utilized (and Tenant has not submitted to Landlord invoices evidencing such costs) on or before the Forfeit Date, then such unused portion shall be forfeited by Tenant.

Landlord Maintenance Obligation. Except as otherwise provided in this Lease and subject to normal wear and tear, Landlord at its expense (subject to reimbursement pursuant to [Exhibit E] if and to the extent permitted thereby) shall keep the Building Structure and Systems, as well as the Amenities and all other Property Common Areas which have a material effect on Tenant’s use of or access to the Premises, or the provision of the services Landlord is obligated to provide pursuant to the terms of this Lease, clean and in good operating condition and repair and, promptly after becoming aware of any item needing repair or replacement, will make such repair or replacement thereto. Notwithstanding any of the foregoing to the contrary: # maintenance and repair of all Tenant Items shall be the sole responsibility of Tenant and shall be deemed not to be a part of the Building Structure and Systems; and # Tenant shall be responsible for the reasonable cost of any repairs whatsoever brought about by any negligence or willful misconduct of Tenant or any Agent.

Landlord’s Liability. The liability of Landlord hereunder shall be limited to its interest in the Leased Property.

Payments to Landlord. Notwithstanding anything to the contrary contained in the Lease, any and all amounts due and payable by Tenant to Landlord shall be in the form of # business checks, # wire transfers, # electronic funds transfers, and # automated clearing house payments. Any other forms of payment are not acceptable to Landlord including, without limitation # cash or currency, # cashier's checks and money orders, # traveler's checks, # payments from credit unions or other non-bank financial institutions, # multiple payments for one (1) scheduled payment, and # third party checks.