Ohio Revised Code Title XXVII. Courts Revised Code General Provisions Special Remedies § 2721.05

As used in this section, “incompetent person” means a person who is so mentally impaired, as a result of a mental or physical illness or disability, as a result of an intellectual disability, or as a result of chronic substance abuse, that the person is incapable of taking proper care of the person's self or property or fails to provide for the person's family or other persons for whom the person is charged by law to provide.

Any person interested as or through an executor, administrator, trustee, guardian, or other fiduciary, creditor, devisee, legatee, heir, next of kin, or cestui que trust, in the administration of a trust, or of the estate of a decedent, an infant, an incompetent person, or an insolvent person, may have a declaration of rights or legal relations in respect thereto in any of the following cases: