Interrogatories may, without leave of court, be served upon the plaintiff after commencement of the action and upon any other party with or after service of the. A party may serve on any other party no more than 25 written interrogatories, including all discrete subparts.All Federal and individual state courts have rules regarding interrogatories. The commissioner shall, at the request of either of the parties, return the interrogatories and answers filed with him, and a report of the proceedings. Interrogatories must be served on the party from whom responses are sought and all other parties who have appeared in the action. (SFD) states its responses and objections to Plaintiff's First Set of Interrogatories Relating to Jurisdictional Discovery. You have 21 days after the service of the interrogatories to object. In federal court, you have more time to object to interrogatories. To enable Virginia lawyers and circuit court judges to use federal precedents to guide Virginia practice in the field of discovery. In Virginia, interrogatories are limited to 30.