Prohibits discrimination based on lawful source of income.

Declares that it is an unfair practice for any person, whether acting for himself, herself, or another, to discriminate in the rental of a dwelling to, or to refuse to negotiate or enter into a rental agreement with, a person because of the person's lawful source of income.

Provides that, when a finding has been made under RCW 49.60.250 that the respondent has engaged in an unfair practice under this act, the administrative law judge shall promptly issue an order for appropriate relief for the aggrieved party, which may include actual damages and injunctive or other equitable relief.