Ohio Rev. Code § 5309.02
Concurrent jurisdiction, except as otherwise provided, is hereby conferred upon the court of common pleas and the probate court in all maters arising under sections 5309.02 to 5310.21, inclusive, of the Revised Code. The probate court shall have all the powers at law and in equity of a court of general jurisdiction as to such matters. In counties having three or more judges of the court of common pleas, such judges may select one or more from their own number who shall act as judges in land registration cases and matters. If the judges so selected are unable to perform the duties on account of interest, absence, or other disability, or in case of emergency, any other judge of the court of common pleas for the same county may perform them. The court of common pleas in any county may appoint one or more deputy clerks to assist the clerk in attending to land registration cases and matters. Such court may inquire into the condition of the title to all interests in land, legal or equitable, or any lien, charge, or encumbrance thereon, and make all orders, judgments, and decrees necessary to settle, as against all persons known and unknown, in being or unborn, such title, or interest, and all liens and encumbrances existing therein, and their order and preference, and remove clouds from such title and forever quiet and settle the title.
R.C. § 5309.02