Washington State Licensing: Corporation/LLC License Renewal
http://www.dol.wa.gov/business/renewcorp.html  

Washington State Licensing: Business License Renewal
http://www.dol.wa.gov/business/renewbusiness.html

Washington State Law Library:
http://courts.wa.gov/library/index.cfm

Revised Code of WA (RCW)
http://www.apps.leg.wa.gov/rcw/default.aspx