Ohio Juv. R. 16
Except as otherwise provided in this rule, when the residence of a party is unknown and cannot be ascertained with reasonable diligence, service shall be made by publication. Service by publication upon a non-custodial parent is not required in delinquent child or unruly child cases when the person alleged to have legal custody of the child has been served with summons pursuant to this rule, but the court may not enter any order or judgment against any person who has not been served with process or served by publication unless that person appears. Before service by publication can be made, an affidavit of a party or party's counsel shall be filed with the court. The affidavit shall aver that service of summons cannot be made because the residence of the person is unknown to the affiant and cannot be ascertained with reasonable diligence and shall set forth the last known address of the party to be served.
Service by publication shall be made by newspaper publication, by posting and mail, or by a combination of these methods. The court, by local rule, shall determine which method or methods of publication shall be used. If service by publication is made by newspaper publication, upon the filing of the affidavit, the clerk shall serve notice by publication in a newspaper of general circulation in the county in which the complaint is filed. If no newspaper is published in that county, then publication shall be in a newspaper published in an adjoining county. The publication shall contain the name and address of the court, the case number, the name of the first party on each side, and the name and last known address, if any, of the person or persons whose residence is unknown. The publication shall also contain a summary statement of the object of the complaint and shall notify the person to be served that the person is required to appear at the time and place stated. The time stated shall not be less than seven days after the date of publication. The publication shall be published once and service shall be complete on the date of publication.
After the publication, the publisher or the publisher's agent shall file with the court an affidavit showing the fact of publication together with a copy of the notice of publication. The affidavit and copy of the notice shall constitute proof of service.
If service by publication is made by posting and mail, upon the filing of the affidavit, the clerk shall cause service of notice to be made by posting in a conspicuous place in the courthouse in which the division of the common pleas court exercising jurisdiction over the complaint is located and in additional public places in the county that have been designated by local rule for the posting of notices pursuant to this rule. The number of additional public places to be designated shall be either two places or the number of state representative districts that are contained wholly or partly in the county in which the courthouse is located, whichever is greater. Alternatively, the postings may be made on the website of the clerk of courts, if available, in a section to be designated for such purpose. The notice shall contain the same information required to be contained in a newspaper publication. The notice shall be posted in the required locations for seven consecutive days. The clerk also shall cause the summons and accompanying pleadings to be mailed by ordinary mail, address correction requested, to the last known address of the party to be served. The clerk shall obtain a certificate of mailing from the United States Postal Service. If the clerk is notified of a corrected or forwarding address of the party to be served within the seven day period that notice is posted pursuant to this rule, the clerk shall cause the summons and accompanying pleadings to be mailed to the corrected or forwarding address. The clerk shall note the name, address, and date of each mailing in the docket.
After the seven days of posting, the clerk shall note on the docket where and when notice was posted. Service shall be complete upon the entry of posting.
The clerk shall forthwith enter on the appearance docket delivery to the United States Postal Service for mailing, or delivery to a specified commercial carrier service for delivery, and make a similar entry when the return receipt is received. If the return shows failure of delivery, the clerk shall forthwith notify the attorney of record or, if there is no attorney of record, the party at whose instance process was issued and enter the method of notification on the appearance docket. The clerk shall file the return receipt, or returned envelope, in the records of the action.
A warrant returned unexecuted and not cancelled or a copy thereof may, while the complaint is pending, be delivered by the court to an authorized officer for execution.
An officer executing a warrant shall take the person named therein without unnecessary delay before the court which issued the warrant.
Ohio. Juv. R. 16