Washington Revised Code Title 60. Liens § 60.76.020. Notice of lien--Contents--Filing and serving

The lien claimant, or his or her representative on his or her behalf, or the trustee of the fund on the claimant's behalf, within sixty days after such payment becomes due shall file for record with the auditor of the county wherein the claimant is or was employed by such employer a notice of claim, containing a statement of the demand, the name of the employer, and the name of the person employing the claimant, if known, with a statement of the pertinent terms and conditions of the employee benefit plan and the time when such contributions are due and were to have been paid, and shall serve or mail a copy thereof to said employer within such time.