15 GCA § 1723: Objections to Granting Letters Testamentary and Petition for Letters of Administration With the Will Annexed; Circumstances for Appointment of Administrator With Will Annexed.

(a) Any person interested in the estate may, at any time prior to the hearing provided in Section 1515 of this Title, file objections in writing to the granting of letters testamentary to the persons named in the will as executors, or any of them, and such objections must be heard and determined by the Superior Court of Guam at the hearing provided in Section 1515 of this Title. Such person may at the same time file a petition praying that letters of administration with the will annexed be granted to him in the first instance, in lieu of a grant of letters testamentary to the petitioner therefor. Such petition must comply with the provisions of Section 1507 of this Title, and shall also be heard at the hearing provided in Section 1515 of this Title.

(b) The Superior Court of Guam shall grant letters of administration with the will annexed in the first instance, in lieu of letters testamentary, under any of the circumstances set forth in Section 1725(a) of this Title; provided, that no letters of administration with the will annexed shall be granted in the first instance, except on proper petition therefor.