Wash. Rev. Code § 87.03.690
A guardian, and executor or an administrator of an estate who is appointed as such under the laws of this state, and who, as such guardian, executor or administrator, is entitled to the possession of the lands belonging to the estate which he or she represents, may, on behalf of his or her ward or the estate which he or she represents, upon being thereto properly authorized by the proper court, sign and acknowledge the petition in this act mentioned, and may show cause, as in this act provided, why the boundaries of the district should not be changed.
RCW 87.03.690
Reviser's note: (1) "Petition in this act mentioned" apparently refers to the petition provided for in RCW 87.03.650.
(2) "Show cause, as in this act provided" apparently refers to the show cause provided for in RCW 87.03.655.
Guardians, etc., when land added to district: RCW 87.03.610.