Wash. Rev. Code » Title 11 · Chapter 11.28
Revised Code of Washington

Wash. Rev. Code § 11.28.110 (2025)

Application for letters of administration or adjudication of intestacy and heirship

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(1) Application for letters of administration, or, application for an adjudication of intestacy and heirship without the issuance of letters of administration shall be made by petition in writing, signed and verified by oath of the applicant or his or her attorney, and filed with the court, which petition shall set forth:
(a) The facts essential to giving the court jurisdiction of the case;
(b) That the deceased died without a will, and the basis of the applicant's knowledge of such;
(c) The names, ages, and addresses of the heirs of the deceased and the details of the applicant's reasonable search for such heirs;
(d) A general description of the major probate assets of the estate, including real property, motor vehicles, and any known property or interest estimated in good faith to exceed $10,000 in value, and the details of the applicant's reasonable search to identify such assets; and
(e) For application for letters of administration, that the applicant is entitled to administer the estate under RCW 11.28.120 and is not disqualified under RCW 11.36.010.
(2) Except to the extent necessary to determine bond, the specific value, location, provenance, and condition of each major probate asset need not be described in the petition.
(3) If the applicant is a person entitled to letters under RCW 11.28.120(1) (a) or (b), the petition need not describe the major probate assets of the estate, but shall still set forth the applicant's reasonable search to identify such assets.
(4) If the application for an adjudication of intestacy and heirship does not request the appointment of a personal representative and the court enters an adjudication of intestacy no further administration shall be required except as set forth in RCW 11.28.330 or 11.28.340.
[ 2026 c 204 s 1; 2010 c 8 s 2017; 1977 ex.s. c 234 s 4; 1974 ex.s. c 117 s 29; 1965 c 145 s 11.28.110. Prior: 1917 c 156 s 62; RRS s 1432; prior: Code 1881 s 1389; 1863 p 220 s 123; 1860 p 182 s 90.]

Notes:

Application, effective date—Severability—1977 ex.s. c 234: See notes following RCW 11.20.020.
Application, construction—Severability—Effective date—1974 ex.s. c 117: See RCW 11.02.080 and notes following.
Notes of Decisions
Cited in 3 cases (1 in the last 5 years), 2017–2025 · leading case: In re The Est. Of Darrel R. Bryant, No. 85931-5 (Wash. Ct. App. Feb. 18, 2025).
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In re The Est. Of Darrel R. Bryant, No. 85931-5 (Wash. Ct. App. Feb. 18, 2025). · cites it 3× “041); the failure to state the names, ages, and addresses of the heirs of the deceased in the Motion to Appoint Co-Administrator (RCW 11.28.110); the failure to have either Mr.”
In re The Est. Of Deborah E. Reid, No. 49222-9 (Wash. Ct. App. Aug. 8, 2017). “Saludares’s status as a statutory beneficiary likely remained uncertain to Laurenne at the time of her petition.”
In re The Est. Of Leeanna R. Mickelson, No. 49056-1 (Wash. Ct. App. Oct. 24, 2017). “Four years after Leeanna died, her daughter, Heather Mickelson, filed a petition for adjudication of intestacy and heirship under RCW 11.28.110. On May 16, 2016, Mickelson appeared pro se in superior court asking the court to enter an order of intestacy for her deceased mother…”
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