Ohio Rev. Code § 721.03
No contract, except as provided in section 721.28 of the Revised Code, for the sale or lease of real estate belonging to a municipal corporation shall be made unless authorized by an ordinance, approved by a two-thirds vote of the members of the legislative authority of such municipal corporation, and by the board or officer having supervision or management of such real estate. When the contract is so authorized, it shall be made in writing by such board or officer, and, except as provided in section 721.27 or 721.29 of the Revised Code, only with the highest bidder, after advertisement once a week for five consecutive weeks in a newspaper of general circulation within the municipal corporation or as provided in section 7.16 of the Revised Code. Such board or officer may reject any bids and readvertise until all such real estate is sold or leased.
R.C. § 721.03