(a) Prepetition.--Prior to a petition being filed under section 5612 (relating to petition for approval of a designation), the designator may revoke a standby guardianship by simple destruction of the designation and notification of the revocation to the standby guardian. (b) Postpetition.--After a petition has been filed, the designator may revoke a standby guardianship by: (1) executing a written revocation; (2) filing the revocation with the court; and (3) notifying the persons named in the designation of the revocation in writing. (c) Unwritten revocation.--Regardless of whether a petition has been filed, an unwritten revocation may be considered by the court if it can be proven by clear and convincing evidence.
Pennsylvania Legal Code