A little bit of a drive from Tacoma but Daugerty's Guns in Port Orchard. I just picked up my shotgun today and he charges $20 for the transfer. This website had his information.
http://fflgundealers.net/daughertys-guns.html Mary's Pistol is a gun store in Tacoma but I do not know if they are still in business or if they will do transfers or what they may charge.