This packet will help you file a Motion to Adjust a Washington State child support order. Welcome to Washington State Courts.This article explains how to file a motion in a Washington State divorce or family law case. A motion is how you ask the court to make a small decision. For a referral to a lawyer or a legal service program, call CLEAR (888) 201-1014. This webinar is about how to submit motions to courts civil and family law motions to court. This Guide covers the generally applicable rules of motion practice in the King County Washington Superior Court. • File the Certificate of Service with the Superior Court Clerk. Customer: I have to file a continuance for the superior court in Washington state, King County. Kings County is located in the Southern San Joaquin Valley, the world's most productive agricultural area.