Ohio Revised Code Title XXXIX. Insurance § 3909.15

If a company, partnership, or association, organized under the laws of any other state or government, ceases to transact the business of life insurance in this state according to law, the statutory agent last designated by or acting for it is deemed to continue as agent for it, unless a new statutory agent is appointed, for the purpose of serving process, and for commencing actions upon any policy or liability issued or contracted while it transacted business in this state, and service of process upon any such agent, for such causes, is a valid service upon the company, partnership, or association.

This section does not limit or affect the right to serve any process, notice, or demand upon a company, partnership, or association in any other manner permitted by law.