Ohio Rev. Code Ann. § 2111.17

A guardian may sue in the guardian's own name, describing the guardian as suing on behalf of the ward. When the guardianship ceases, actions or proceedings then pending shall not abate, if the right survives. The guardian's successor as guardian, the executor or administrator of the ward, or the ward, if the guardianship has terminated other than by the ward's death, shall be made party to the suit or other proceeding as the case requires, in the same manner an executor or administrator is made a party to a similar suit or proceeding if the plaintiff dies during its pendency.