Ohio Rev. Code Ann. § 5309.30

The county recorder shall take from the owner of any registered property, right, interest, lien, or charge, in every case in which it is practicable to do so, the owner's receipt or signature card, giving the residence and post-office address, for the certificate of title, or whatever paper is issued or delivered to or filed by the owner, signed by the owner in person and witnessed. If the receipt or signature card is signed in the recorder's office, it may be witnessed by the recorder or a deputy. If signed elsewhere, the receipt or signature card shall be acknowledged before an officer authorized to take acknowledgment of deeds. When signed, witnessed or acknowledged, and filed with the recorder, the receipt shall be regarded as containing the genuine signature of that person.