(1) Either the superior court or any court on an appeal may, in its discretion, order costs, including reasonable attorneys' fees, to be awarded to any party: (a) From any party to the proceedings; (b) from the assets of the estate or trust involved in the proceedings; or (c) from any nonprobate asset that is the subject of the proceedings. The court may order the costs, including reasonable attorneys' fees, to be paid in such amount and in such manner as the court determines to be equitable. In exercising its discretion under this section, the court may consider any and all factors that it deems to be relevant and appropriate, which factors may but need not include whether the litigation benefits the estate or trust involved.
(2) This section applies to all proceedings governed by this title, including but not limited to proceedings involving trusts, decedent's estates and properties, and guardianship matters. This section shall not be construed as being limited by any other specific statutory provision providing for the payment of costs, including RCW 11.68.070 and 11.24.050, unless such statute specifically provides otherwise. This section shall apply to matters involving guardians and guardians ad litem.