Modifying requirements for service of unlawful detainer notices and other notices served in the same manner.

HB 2664 modifies how eviction notices (unlawful detainer notices) and similar legal notices must be delivered in Washington state. It clarifies service methods when tenants are absent or untraceable, allowing notices to be left on the property and mailed to the last known address, with a mandatory 5-day waiting period after mail delivery before eviction actions can begin. The bill directly affects tenants facing eviction, landlords seeking possession, and property management companies (including corporate owners). Key provisions specify acceptable service locations, required mailing procedures, and define how subtenants are handled in lodging situations.