Ohio Rev. Code § 5309.52
When any registered mortgage, encumbrance, lien, charge, or lesser estate, vested, contingent, expectant, or inchoate, is satisfied, released, extinguished, or terminated, in any manner in whole or in part, the mortgagee, encumbrancer, assignee, owner of lesser estate, or his legal representative, holder of lien, or other person authorized to discharge or release such encumbrance, shall forthwith file with the county recorder or deliver to the encumberer or owner such satisfaction, release, or discharge, in whole or in part. The recorder shall enter such satisfaction, release, or discharge upon the registered certificate of title, upon the original instrument on file or the margin of the record thereof, if recorded, and properly note such cancellation in all the indexes of such mortgage, encumbrance, lien, or charge. If an original instrument, or one of the original duplicates thereof, or a mortgagee's certified copy, indorsed by the recorder, is outstanding in the hands of the encumbrancer or his assigns, no entry or memorial of satisfaction of such instrument shall, except upon notice and a hearing, be made by the recorder without the production of said original instrument or original duplicate or mortgagee's certified copy. If the encumbrancer, owner of a lesser estate or his legal representative, or other person, fails to file such satisfaction or release with the recorder or deliver it to the encumberer, or if such satisfaction or release has been delivered to the encumberer or transferor and become lost or destroyed or from any other cause cannot be produced, then the encumberer, transferor, or other person entitled to such discharge or release may present proof of the same before the recorder, ten days' notice having been given to the person holding the security or lesser estate or to his personal and legal representatives and all persons in interest as shown by the records, or as known. When the recorder is convinced that such mortgage, encumbrance, or other charge has been satisfied, or that said lesser estate has been extinguished or terminated as claimed, he shall enter such satisfaction, release, extinguishment, or termination on the instrument on file with him or the record thereof, if recorded, and indorse the same upon the registered and also on the owner's duplicate certificate of title; or application in such cases may be made to the probate court or the court of common pleas by petition and the court upon notice and hearing shall make such order as is appropriate and the recorder shall act in accordance therewith, and the entry of such discharge, satisfaction, release, extinguishment, or termination by the recorder pursuant to his finding or the order of the court, subject to proceedings on appeal, is conclusive evidence thereof.
R.C. § 5309.52