Ohio Revised Code Title XIII. Commercial Transactions § 1312.04

(A) No owner shall commence arbitration proceedings or file a dwelling action against a residential contractor unless, at least sixty days before commencing the proceedings or filing the action, the owner provides the contractor with written notice of the construction defect that would be the basis of the arbitration proceedings or the dwelling action. The notice shall be in writing and mailed, sent by telegram, delivered in person, or sent by any means the contractor has indicated communications may be sent, including facsimile transmission and electronic mail. The notice shall substantially comply with the requirements set forth in division (B) of this section.

(B) Any notice that an owner provides to a contractor pursuant to this section shall substantially do all of the following:

(C) After receiving a notice of defects, a contractor may request an owner to provide a description of the cause of the defects and the nature and extent of repairs necessary to remedy the defects. An owner may provide this information if the owner has knowledge of the cause of the defects and the repairs necessary to remedy those defects.

(D) If a contractor files a mechanics lien or commences any type of arbitration proceedings or legal action against an owner, this chapter does not apply, and the owner immediately may counterclaim, commence arbitration proceedings, or file a dwelling action against the contractor.