Ohio Revised Code Title LIII. Real Property § 5303.09

In cases of lands sold for taxes the title by which the successful claimant succeeds against the occupying claimant is an adverse and better title under section 5303.08 of the Revised Code, whether it is the title under which the taxes were due and for which the land was sold, or any other title or claim. The occupying claimant holding possession of land sold for taxes, having the deed of a county auditor therefor, or a certificate of such sale from a county treasurer, or claiming under the person who holds such deed or certificate, has sufficient title to the land to demand the value of improvements under such section.