A party may serve on any other party no more than 25 written interrogatories, including all discrete subparts. This article will explain how attorneys outside of Illinois can get their subpoena issued in Illinois.A party may direct written interrogatories to any other party. A copy of the interrogatories shall be served on all other parties entitled to notice. As a matter of law, your attorney was required to file a certificate of service of the responses served on the opposing counsel. A sample notice of serving interrogatories used to prove service of interrogatories in a Florida circuit court civil case. Notice of Service of Standard Family Law Interrogatories. Form Number 12.930(a). Please produce all other documentation supporting his claim that "he was actively involved in the. Retain an attorney now.