You can drop the documents off in person, by mail, or fax.
If sending by mail or in person:
Family Support Division
Attn: Disso/Responding Unit
Robert Drewel Bldg, 6th Floor, M/S 504
3000 Rockefeller Ave
Everett, WA 98201
If you want to fax your documents please call and speak to a representative in the Dissolution/Responding unit for more information.