An applicant for an order under Section 112.101 must prove to the court's satisfaction that:
(1) the spouse whose community property interest is at issue is deceased;
(2) the court has jurisdiction and venue;
(3) the agreement was executed with the formalities required by law;
(4) the agreement was not revoked; and
(5) citation has been served and returned in the manner and for the length of time required by this title.