Indiana Code Title 36. Local Government § 36-10-10-11

Sec. 11. (a) A city may lease land and buildings from the authority for civic purposes.  A contract of lease on a particular building may not be entered into for a period of more than forty (40) years, but the lease may be renewable for a similar or shorter period of time.

(b) A city may, in anticipation of the construction and erection of a convention center, including the necessary equipment and appurtenances, make and enter into a lease with the authority prior to the actual acquisition of a site and the construction and erection of the convention center.  A lease may not provide for the payment of any lease rental by the lessee until the convention center is ready for occupancy.