Ohio Revised Code Title XLVII. Occupations Professions § 4735.60

(A) Disclose to the licensee representing the seller, or if the seller is not represented, disclose to the seller, that the licensee represents the purchaser in the transaction.  This disclosure shall take place during the first contact the licensee has with any employee or licensee of the brokerage with which the seller's agent is affiliated, or if the seller is not represented by a licensee, during the first contact with the seller.

(B) If the seller is not represented by a licensee, verbally disclose during the first contact with the seller, any intention of seeking compensation from the seller.