This guide contains generic forms and instructions for filing a typical motion, opposition, or reply in California state court. In California family law, motions to strike are generally filed to request the court to remove certain parts of the opposing party's pleadings.And the instant motion is nothing more than a late-in-the-. A motion to strike any pleading must be filed "within the time allowed to respond to a pleading" e.g. Technically speaking, a defendant is in default if they do not file an answer within 30 days. However, practically speaking, judges will often give leeway. Taylor Schwing, Esq. The County will consider the merits of the actual claim only if the "Application for Leave to Present a Late Claim" has been accepted. Completing the Claim Form. Nor did defendant RHA make any request with the court to file a late anti-SLAPP motion.