Ohio Rev. Code Ann. § 2335.04

When the business of the court of common pleas requires, such court, in any county having not more than one judge of the court of common pleas, may appoint an assignment commissioner whose duty it will be to make assignments of cases to be tried in the court under the direction of the judge holding such court. Such commissioner shall hold office during the pleasure of the court making the appointment and shall receive such compensation as is fixed by the court making the appointment, which amount shall not exceed three thousand dollars per year, payable monthly.