Assignment Subleasing (a) With the exception of a tenant that would render any Leased Property or a portion thereof a “tax-exempt use property” within the meaning of Section 168(h) of the Code, Tenant may assign its interest in this Lease and may sublet or grant licenses to any Leased Property in whole or in part, from time to time, without the consent of Landlord, provided that, in the case of an assignment, Lease Guarantor reaffirms its obligations under the Lease Guaranty after giving effect to such assignment. Tenant shall have no rights to mortgage or otherwise hypothecate its leasehold interest under this Lease. With respect to any assignment or sublease to an entity that is not an Affiliate of Tenant and which relates to at least 10% of the usable square feet of any Leased Property, Tenant shall provide Landlord with a written summary of the material terms of such assignment or sublease prior to the commencement date thereof. For purposes of this Paragraph 17(a), the term “assignment” and “assign” shall not include any sale of the stock of Tenant, provided that (i) the Lease Guarantor reaffirms its obligations under the Lease Guaranty after giving effect to such sale and (ii) such sale does not result in an Event of Default. (b) Each sublease or license of a Leased Property or any part thereof shall be subject and subordinate to the provisions of this Lease, and the term of each such sublease shall terminate on or before the Expiration Date. No assignment or sublease shall affect or reduce any of the obligations of Tenant hereunder, and all such obligations shall continue in full force and effect as obligations of a principal and not as obligations of a guarantor, as if no assignment or sublease had been made, provided that if Tenant assigns its interest hereunder to any entity that has acquired all, or substantially all, of Tenant’s assets, Tenant shall be relieved of all of its obligations under this Lease from and after the effective date of such assignment so long as (i) the assignee has executed the agreement referred to below in this paragraph and (ii) such sale or transfer of assets by Tenant does not result in an Event of Default. Notwithstanding any assignment or subletting, but subject to the foregoing sentence, Tenant shall continue to remain primarily liable and responsible for the payment of the Basic Rent and Additional Rent and the performance of all its other obligations under this Lease. No assignment or sublease shall impose any obligations on Landlord, except as otherwise provided in this Lease. Tenant agrees that in the case of an assignment of this Lease, Tenant shall, within fifteen (15) days after the execution and delivery of any such assignment, deliver to Landlord (i) a duplicate original of such assignment in recordable form and (ii) an agreement executed and acknowledged by Tenant and its assignee in recordable form wherein the assignee shall agree to assume and agree to observe and perform all of the terms and provisions of this Lease on the part of the Tenant to be observed and performed from and after the date of such assignment. In the case of a sublease which relates to more than 10% of the usable square feet of a Leased Property, Tenant shall, within fifteen (15) days after the execution and delivery of such sublease, deliver to Landlord a duplicate original of such sublease; with respect to each other sublease, Tenant shall provide a copy thereof to Landlord promptly after Landlord’s request therefor. (c) Upon the occurrence and during the continuance of an Event of Default under this Lease, Landlord shall have the right to collect and enjoy all rents and other sums of money payable under any sublease or license of any Leased Property, and Tenant hereby irrevocably and unconditionally assigns such rents and money to Landlord, which assignment may be exercised upon and after (but not before) the occurrence of an Event of Default, provided, however, that if such Event of Default is subsequently cured and this Lease has not been terminated, Landlord shall pay to Tenant all amounts it received pursuant to such assignment that have not been applied to the obligations of Tenant hereunder.