In Washington, what does the law say about security deposit, return deadline?
Answered for: Washington
Within 30 days after the termination of the rental agreement and vacation of the premises or, if the tenant abandons the premises as defined in RCW 59.18.310, within 30 days after the landlord learns of the abandonment, the landlord shall give a full and specific statement of the basis for retaining any of the deposit
This is Washington's statute on security deposit, return deadline, in its own words.
This answer is true in Washington and nowhere else on this site. Another jurisdiction is another answer, or an honest gap: see what has been read for Washington.