Ohio Revised Code Title XXVII. Courts Revised Code General Provisions Special Remedies § 2717.14

(A) When an application is made on behalf of a minor, in addition to the proof required under sections 2717.03 or 2717.05 of the Revised Code and, if applicable, proof of the notice given under section 2717.08 of the Revised Code, the consent of both living, legal parents of the minor shall be filed, or notice of the hearing shall be given to the parent or parents not consenting by certified mail, return receipt requested.

(B) If there is no known father of the minor, the notice shall be given to the person who the mother of the minor alleges to be the father.

(C) If no father is so alleged, or if either parent or the address of either parent is unknown, notice by publication in a newspaper of general circulation in the county at least thirty days before the hearing shall be sufficient as to the father or parent.

(D) Any additional notice required by this section may be waived in writing by any person entitled to the notice.