A petition to adjudicate whether there has been any significant change in the capacity of a person who was formerly adjudicated to be incapacitated shall set forth:
The petitioner may be the incapacitated person, the guardian, the spouse of the incapacitated person, a relative, a creditor, a debtor, or any person interested in the welfare of the incapacitated person.
War. Cnty. Pa. 14.3.1