Well, I'm not from the area but I do know of a really good therapist in Portland-- maybe he could steer you to some good ones in Seattle....

.....
He works with people that have experienced childhood trauma mostly. It seems that good therapists often give referrals to other good therapists.
If you're interested I could PM you his site.
Just let me know.
Good luck with your search
and your re-locating
fins