Ohio Revised Code Title XXI. Courts Probate Juvenile § 2111.37

If a nonresident minor, incompetent, or person confined in a state, charitable, or correctional institution has real property or rights, credits, moneys, or other personal property in this state, the probate court of the county in which the property or a part of it is situated may appoint a resident guardian of the ward to manage, collect, lease, and take care of the ward's property. The appointment may be made whether or not a ward has a guardian, trustee, or other conservator in the state of the ward's residence, and, if the ward has a guardian, trustee, or other conservator in the state of the ward's residence, the control and authority of the resident guardian appointed in this state shall be superior as to all property of the ward in this state.

The first appointment of a resident guardian of a nonresident ward shall extend to all the property and effects of the ward in this state and exclude the jurisdiction of the probate court of any other county.