Wash. Rev. Code § 64.90.285
(1)
(10) Upon 30-day advance notice to unit owners, the association may, upon a vote of two-thirds of the members of the board, without a vote of the unit owners, adopt, execute, and record an amendment to the declaration for the following purposes:
(12)
(a) If the declaration requires that amendments to the declaration may be adopted only by the vote or agreement of unit owners of units to which more than 67 percent of the votes in the association are allocated, and the percentage required is otherwise consistent with this chapter, the amendment is approved if:
(ii)
(iii)
[ 2024 c 321 s 309; 2019 c 238 s 208; 2018 c 277 s 218.]