The Residential Landlord Tenant Act (RLTA) can be seen at RCW 59.18 (http://apps.leg.wa.gov/RCW/default.aspx?cite=59.18). You can also find cases on the mrsc.org website.
Although reasonable minds can differ, it appears from your statement that the landlords did not have a signed lease agreement with you, so they would have no legal basis for attempting to impose their tyrannical conditions.
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