Ohio Rev. Code Ann. § 1923.06
(C) The clerk of the court in which a complaint to evict is filed shall mail any summons by ordinary mail, along with a copy of the complaint, document, or other process to be served, to the defendant at the address set forth in the caption of the summons and to any address set forth in any written instructions furnished to the clerk. The mailing shall be evidenced by a certificate of mailing which the clerk shall complete and file. In addition to this ordinary mail service, the clerk also shall cause service of that process to be completed under either of the following:
(D)
(1) If requested, the clerk shall deliver sufficient copies of the summons, complaint, document, or other process to be served to, and service shall be made by, one of the following persons:
(2) The person serving process shall effect service at the premises that are the subject of the forcible entry and detainer action by one of the following means:
(F)
(1) If the person to be evicted in an action pursuant to this chapter is a deceased manufactured home park resident, the plaintiff shall provide to the clerk the following information:
(2)
(b) Upon receipt from the plaintiff of the information set forth in division (F)(1)(b) or (c) of this section, the clerk shall do both of the following:
(G) Service of process shall be deemed complete on the date that any of the following has occurred:
(3) For service performed pursuant to division (E) or (F)(2)(a) of this section, on the date of mailing, if on the date of the hearing either of the following applies:
(4) For service performed under division (F)(2)(b) of this section, on the date of mailing under division (F)(2)(b)(i) of this section or on the date of the last publication under division (F)(2)(b)(ii) of this section, whichever is later, if on the date of the hearing, either of the following applies:
(H)