A certificate of service of the interrogatories must be filed, giving the date of service and the name of the party to whom they were directed. Interrogatories are written questions that either the defense or the plaintiff involved in litigation can send to the opposing attorney.Interrogatories may be served on the plaintiff anytime after the action commences and upon any other party with or after the service of process. Form interrogatories are contained in Judicial Council Form FL145. The responding party must file with the court Florida Family Law Rules of Procedure Form 12.930(d),. Filling out this form requires careful attention to the questions provided. Notice of Service of Standard Family Law Interrogatories, Florida Family Law Rules of Procedure Form. The Civil Procedure Rules Committee proposes amending. Note: Both Parties must complete Special Interrogatories. The first edition of this handbook was prepared in the fall of 1995.