Ohio Rev. Code § 6131.28: Joinder and separation of appeals.

Several owners may appeal from the orders in the same improvement. If several owners appeal, only one transcript need be made by the clerk of the board of county commissioners. All the appeals shall be filed in one action in the court of common pleas, which court, on any appeal, may separate for hearing or trial the issues appealed to said court, and render its order, judgment, or decree upon the issues as the same are determined. The case on appeal shall be advanced, or tried as soon as the court can hear it.