Okay, I'm sorry you are going through this. I work for a family law attorney in Snohomish County and we don't do much in King County.
Here are my referrals for you. If you go the the King County Bar Association website,
King County Bar Association Home Page, there is a tab the says Legal Help and then Free Legal Assistance or Lawyer Referral Service. They should be able to put you in touch with someone who can help you.
Another option is
Seattle Divorce Attorneys; Goldberg & Jones They mostly advocate for men but I do know they represent women too. They are very good and give free legal advice over the phone. 1-800-DIVORCE (they do custody matters also).
Good luck