Ohio Rev. Code Ann. § 5301.07
(B)
(1) When a real property instrument is delivered to and accepted by the county recorder of the county in which the real property is situated, and is signed and acknowledged by a person with an interest in the real property that is described in the instrument, the instrument raises both of the following:
(C) When a real property instrument is of record for more than four years from the date of recording of the instrument, and the record shows that there is a defect in the making, execution, or acknowledgment of the instrument, the instrument and the record thereof shall be cured of the defect and be effective in all respects as if the instrument had been legally made, executed, acknowledged, and recorded. The defects may include but are not limited to the following: