Also fill out the certificate of service with the date on which you intend to mail a copy to the opposing side and sign it. The certificate of service is.This guide provides general information and resources pertaining to filing a civil lawsuit in Sacramento County Superior Court. G I am a party to this action. Some states like Florida and California even provide forms online to make your complaint. To determine if a complaint is verified, check for a signed declaration under penalty of perjury at the end, affirming the truth of the complaint's contents. In no event will the CIU of Legal Aid of North. A responsive pleading to a complaint or cross-complaint must be filed and served within thirty (30) days of service of the complaint or cross-complaint.