Ohio Rev. Code Ann. § 303.54

Any instrument executed by a county respecting a county renewal project thereof and purporting to convey any right, title, or interest in any property under sections 303.26 to 303.56, inclusive, of the Revised Code, shall be conclusively presumed to have been executed in compliance with the applicable provisions of said sections insofar as title or other interest of any bona fide purchasers, lessees, or transferees of such property is concerned.