This Lease shall constitute a legally binding and enforceable agreement between Landlord and Tenant as of the Effective Date. The Term of this Lease is stated in Section 1(f), and the Commencement Date shall be determined as provided in Section 1(h). Landlord and Tenant shall confirm the Commencement Date and Expiration Date in writing within thirty (30) days after the actual Commencement Date pursuant to the form certificate attached as Exhibit E .