Wolfe- Some good advice given so i won't reiterate. One other thing to look for. If you have a standard lease it probably has a "right to quiet enjoyment" clause.
Send a registered letter to your landlord along with a copy of the lease and caption that clause.
State if he continues to harass you you will file a complaint. Damages under that clause often are very steep. Even if you don't have the clause no problem I am sure it is law in Wash. like most every where else. It just helps to be able to reference the clause. It makes it look like you know the game.
One other thing. Check your state laws. In NJ where I live we must deposit a tenants security in an interest baring account for the tenant and send notice of the bank in which the deposit is held and statements to the tenant regularly. If we do not do that with in 14 days (time frame may be off) the tenant has the right to use the deposit as rent. What this means is you could legally stop paying rent until the security is used up.
Good luck.
