Ohio Rev. Code Ann. § 749.161

The legislative authority of a municipal corporation may, in the manner provided in section 513.071 of the Revised Code, cause such municipal corporation to participate in the formation of, or become a part of, a joint township hospital district, obtain representation on the joint township district hospital board thereof, and as a township be or become bound by all agreements entered into by such joint township hospital district pursuant to sections 513.07 to 513.18, inclusive, of the Revised Code, and the taxable property in such municipal corporation shall thereupon be or become subject to all tax levies, including tax levies for bonds, imposed by the joint township hospital district.