Ohio Revised Code Title VII. Municipal Corporations § 709.16

(A) A municipal corporation may petition the board of county commissioners to annex contiguous territory owned only by the municipal corporation, a county, or the state. The clerk of the board shall cause the petition to be entered upon the board's journal at its next regular session. This entry shall be the first official act of the board upon the petition. Proceedings on the petition shall be conducted under this section to the exclusion of any other provisions of this chapter except for sections 709.014, 709.14, 709.15, 709.20, and 709.21 of the Revised Code.

(B) If the only territory to be annexed is contiguous territory owned by a municipal corporation, the board of county commissioners, by resolution, shall grant the annexation. The annexation shall be complete upon the entry upon the journal of the board of the resolution granting the annexation.

(C) If the only territory to be annexed is contiguous territory owned by a county, the board of county commissioners, by resolution, may grant or deny the annexation. The annexation shall be complete upon the entry upon the journal of the board of a resolution granting the annexation.

(D) If the only territory to be annexed is contiguous territory owned by the state and the director of administrative services has filed a written consent to the granting of the annexation with the board of county commissioners, the board, by resolution, shall grant the annexation. The annexation shall be complete upon the entry upon the journal of the board of a resolution granting the annexation.

(E) The board of county commissioners shall act upon a petition for annexation filed under this section within thirty days after receipt of the petition.

(F) No appeal in law or in equity shall be allowed from the granting of an annexation under this section.

(G) When a municipal corporation purchases real property below an appraised fair market value and sells or agrees to sell the property back to the person that sold it to the municipal corporation, an annexation of that property completed under this section shall be void, and the annexed property shall become part of the township from which it was annexed, if it still exists. If the township no longer exists, the board of county commissioners shall attach the annexed territory to another township.

(H) Territory annexed under this section shall not be excluded from the township under section 503.07 of the Revised Code.