A conservator of the estate of a person who is missing and whose whereabouts is unknown may be appointed only if the court finds all of the following:
(a) The proposed conservatee owns or is entitled to the possession of real or personal property located in this state.
(b) The proposed conservatee remains missing and his or her whereabouts remains unknown.
(c) The estate of the proposed conservatee requires attention, supervision, and care.