Wash. Rev. Code § 11.125.390
(2) Unless the power of attorney otherwise provides, language in a power of attorney granting general authority with respect to gifts authorizes the agent only to:
(3) An agent may make a gift outright to, or for the benefit of, a person of the principal's property only as the agent determines is consistent with the principal's objectives if actually known by the agent and, if unknown, as the agent determines is consistent with the principal's best interest based on all relevant factors, including but not limited to:
[ 2016 c 209 s 216.]