Ohio Revised Code Title XIX. Courts Municipal Mayor's County § 1907.18

(1) Administer an oath authorized or required by law to be administered;

(2) Take acknowledgments of instruments of writing;

(3) Issue subpoenas to compel the attendance of witnesses to give evidence in causes or matters pending before the judges, or for the purpose of taking depositions or perpetuating testimony;

(4) Proceed against sheriffs, deputy sheriffs, and constables failing to make return, making false return, or failing to pay over money collected on execution issued by the judges;

(5) Try actions against other county court judges for refusing or neglecting to pay over moneys collected in their official capacity when the amount claimed does not exceed five hundred dollars. This division does not deny or impair any remedy provided by law in such a case by suit on the official bond of such a county court judge, or by amercement or otherwise, for neglect or failure to pay over money so collected.

(6) Hear actions concerning the issuance and enforcement of, issue, and enforce temporary protection orders pursuant to section 2919.26 of the Revised Code and protection orders pursuant to section 2903.213 of the Revised Code;

(7) Hear actions concerning the enforcement of protection orders issued by courts of another state, as defined in section 2919.27 of the Revised Code, and to enforce those protection orders.

(C)(1) County court judges have jurisdiction and authority to perform marriage ceremonies anywhere in the state.

(2) A county court judge shall pay all marriage fees collected by the judge when not connected with any cause or proceeding pending in the county court to the treasurer of the county in which the court is located.