It sounds like you took the proper steps to resolve, but hired someone that was unable to do it properly. If you paid the attorney a retainer, you should ask for the unearned portion back, and hire another attorney that can help you.
Repost this question in the Washington state forum. You are going to need the assistance of a WA attorney to straighten out this matter. Note that in MA, you can be arrested and held as a fugitive from justice if there is a warrant for you out of another state, even if that other state does not wish to have you extradited.
You need to have the case in Washington state closed, sometimes an attorney can waive your appearance or if that doesn't work have him/her set up the case with the probation officer and the court and just show up for one court appearance and have all the matters closed. I woudn't risk having that hanging out there, you could be held as a fugitive from justice in most states. ask the lawyer again, maybe it was a miscommunication. good luck.