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. Each interrogatory must, to the extent it is not objected to, be answered separately and fully in writing under oath.Must a certificate of service be filed for interrogatories under Florida Rules of Civil Procedure? Serving defendants across state lines can be tricky. In some states like Florida, papers cannot be served on Sundays or holidays. A sample notice of serving interrogatories used to prove service of interrogatories in a Florida circuit court civil case. Discovery objections cheat sheet for common interrogatories and other discovery objections. How to object to improper discovery requests. Use this At A Glance Guide to learn the Florida Rules of Civil Procedure related to propounding interrogatories in Florida Circuit Courts. A: It is normal to to only efile the notice of service of interrogatories and send the actual interrogatories to the relevant party directly.