Here's what they say on their about page:
"Founded in 1976, Washington Lawyers for the Arts (WLA) is a nonprofit service organization dedicated to supporting the arts in Washington state by creating alliances and making legal resources accessible to artists and arts organizations of all disciplines."
They hold regular clinics where artists can make 30-minute appointments to meet with attorneys specializing in arts and entertainment law and are available to discuss things like copyright or trademark and other intellectual property topics, contract review and non-profit issues.
Check out their site to get more information about when these clinics are and how to sign up. It's under the 'services' menu.