Ohio Rev. Code Ann. § 349.03
(A) Proceedings for the organization of a new community authority shall be initiated by a petition filed by the developer in the office of the clerk of the board of county commissioners of one of the counties in which all or part of the proposed new community district is located. Such petition shall be signed by the developer and may be signed by each proximate city. The legislative authorities of each such proximate city shall act in behalf of such city. Such petition shall contain:
(3) A map and a full and accurate description of the boundaries of the new community district together with a description of the properties within such boundaries, if any, which will not be included in the new community district. The total acreage included in such district shall not be less than one thousand acres, all of which acreage shall be owned by, or under the control through leases of at least seventy-five years' duration, options, or contracts to purchase, of the developer, if the developer is a private entity unless one of the following applies: