Wash. Rev. Code § 11.104B.120
(1) A fiduciary, without court approval, by complying with subsections (2) and (6) of this section, may:
(a) Convert an income trust to a unitrust if the fiduciary adopts in a record a unitrust policy for the trust providing:
(2) A fiduciary may take an action under subsection (1) of this section if:
(c) The fiduciary sends a copy of the notice under (b) of this subsection (2) to each settlor of the trust which is:
(d) At least one member of each class of beneficiaries receiving the notice under (b) of this subsection (2) is:
(3) If a fiduciary receives, not later than the date stated in the notice under RCW 11.104B.130(3)(e), an objection in a record described in RCW 11.104B.130(3)(d) to a proposed action, the fiduciary or a beneficiary may request the court to have the proposed action taken as proposed, taken with modifications, or prevented. A person described in RCW 11.104B.130(1) may oppose the proposed action in the proceeding under this subsection, whether or not the person:
[ 2021 c 140 s 2303.]