A party may serve on any other party no more than 25 written interrogatories, including all discrete subparts. Commencing an Action.A written motion and notice of the hearing must be served at least 14 days before the time specified for the hearing, with the following exceptions. This is a how-to guide on interrogatories and requests for production in Washington divorce and family law cases. The first step in a civil action is the filing of the complaint with the clerk or judge. (1) A summons shall be served together with a copy of the complaint. (e) Motions to Strike.