Ohio Rev. Code Ann. § 3107.11
(A) After the filing of a petition to adopt an adult or a minor, the court shall fix a time and place for hearing the petition. The hearing may take place at any time more than thirty days after the date on which the minor is placed in the home of the petitioner. At least twenty days before the date of hearing, notice of the filing of the petition and of the time and place of hearing shall be given by the court to all of the following: