A 30 second Google search yielded Washington state residency requirements:The Department of Revenue presumes that a person is a resident of this state if he or she does any of the following:Maintains a residence in Washington for personal use,Lives in a motor home or vessel which is not permanently attached to any property if the person previously lived in this state and does not have a permanent residence in any other state,Is registered to vote in this state,Receives benefits under one of Washington's public assistance programs,Has a state professional or business license in this state,Is attending school in this state and paying tuition as a Washington resident or is a custodial parent with a child attending a public school in this state,Uses a Washington address for federal or state taxes,Has a Washington State driver's license, orClaims Washington as a residence for obtaining a hunting or fishing license, eligibility to hold public office or for judicial actions.Washington State residency definition