Ohio Rev. Code Ann. § 2111.04
(A) Except for an interim or emergency guardian appointed under division (B)(2) or (3) of section 2111.02 of the Revised Code, no guardian of the person, the estate, or both shall be appointed until at least seven days after the probate court has caused written notice, setting forth the time and place of the hearing, to be served as follows:
(1) In the appointment of the guardian of a minor, notice shall be served as follows:
(2) In the appointment of the guardian of an incompetent, notice shall be served as follows:
(a)