Ohio Rev. Code § 1310.13: Offer and acceptance in formation of lease contract - UCC 2A-206.

(A) Unless otherwise unambiguously indicated by the language or circumstances, and offer to make a lease contract shall be construed as inviting acceptance in any manner and by any medium reasonable under the circumstances.

(B) If the beginning of a requested performance is a reasonable mode of acceptance, an offeror who is not notified of acceptance within a reasonable time may treat the offer as having lapsed before acceptance.