Term Commencement Date For purposes of this Lease, the "Term Commencement Date" shall be defined as the earlier of (A) the first date on which Tenant occupies all or any part of the Premises for the conduct of business, or (B) fourteen (14) days after the date on which both of the following shall occur: (i) Landlord's Work shall be (or be deemed to be) substantially completed (notwithstanding the incompleteness of (x) so-called "punch list" items, (y) work to be undertaken by Landlord which does not materially impair Tenant's use of the Premises for the purposes allowed herein, and (z) finishes and exterior landscaping to the Property), and (ii) a certificate of occupancy has been (or is deemed to have been) issued with respect to the Premises (or the building inspector has (or is deemed to have) provided a verbal "sign off" on Landlord's Work and indicated that a certificate of occupancy will issue in due course). If Tenant (or any agent, employee or contractor of Tenant) causes any delay in the performance or substantial completion of Landlord's Work (including, without limitation, by failing to timely prepare the Construction Drawings), then Landlord's Work shall be deemed to have been substantially completed on the date that Landlord's Work would have been substantially completed but for such delay, and the certificate of occupancy for the Premises (or building inspector "sign off" as aforesaid) shall be deemed to have been issued (or provided) on the date it would have been issued (or provided) but for such delay. Landlord shall use reasonable efforts to substantially complete Landlord's Work by the date (as the same may be modified by Landlord at or prior to the time of its approval of the Construction Drawings as provided in the second paragraph of Section 10.22, the "Estimated Substantial Completion Date") which is ninety (90) days after Landlord's final approval of the Construction Drawings, but Tenant shall not have any claim against Landlord, and Landlord shall have no liability to Tenant, if Landlord's Work is not substantially completed by the Estimated Substantial Completion Date. Notwithstanding the foregoing, if Landlord fails to substantially complete Landlord's Work on or before the date which is sixty (60) days after the Estimated Substantial Completion Date due to Landlord's fault or neglect, then Tenant shall be entitled to a credit (offset) against Base Rent due and payable as of the Term Commencement Date in the amount of one (1) day of Base Rent for each day after the Estimated Substantial Completion Date that Landlord's Work shall not have been substantially completed.