Ohio Revised Code Title XXI. Courts Probate Juvenile § 2112.27

(A) If the probate court in this state has jurisdiction under section 2112.21 of the Revised Code, the probate court may proceed with the case unless a court in another state acquires jurisdiction under provisions similar to section 2112.21 of the Revised Code before the appointment or issuance of the order.

(B) If the probate court in this state does not have jurisdiction under section 2112.21 of the Revised Code, whether at the time the application is filed or at any time before the appointment or issuance of the order, the probate court shall stay the proceeding and communicate with the court in the other state. If the court in the other state has jurisdiction, the probate court in this state shall dismiss the application unless the court in the other state determines that the probate court in this state is a more appropriate forum.