Ohio Rev. Code Ann. § 2506.03
(A) The hearing of an appeal taken in relation to a final order, adjudication, or decision covered by division (A) of section 2506.01 of the Revised Code shall proceed as in the trial of a civil action, but the court shall be confined to the transcript filed under section 2506.02 of the Revised Code unless it appears, on the face of that transcript or by affidavit filed by the appellant, that one of the following applies:
(2) The appellant was not permitted to appear and be heard in person, or by the appellant's attorney, in opposition to the final order, adjudication, or decision, and to do any of the following: