Ohio Rev. Code § 3515.10
The court with which a petition to contest an election is filed shall fix a suitable time for hearing such contest, which shall be not less than fifteen nor more than thirty days after the filing of the petition. Such court shall have a copy of the contestor's petition served upon the contestee or upon the chairman of the committee taking the other side in advocacy of or opposition to any issue, in the same manner as a summons in a civil action. The contestee shall have ten days from the time service has been made upon him in which to answer the petition, and the contestor shall have five days in which to reply to the answer of the contestee. All parties may be represented by counsel and the hearing shall proceed at the time fixed, unless postponed by the judge hearing the case for good cause shown by either party by affidavit or unless the judge adjourns to another time, not more than thirty days thereafter, of which adjournment the parties interested shall take notice.
R.C. §3515.10