A motion to strike asks the court to ban a pleading, like an Answer, from being used. In addition to the note of issue, the party making the filing must also file a certificate of readiness.This overview provides lawyers with foundational information on when and how to file a motion to strike. The motion must be made before filing a responsive pleading and must point out the defects complained of and the details desired. Defendant's Motion To Strike Plaintiff's Response To Motion To Dismiss (Doc. Substitute Pleading: "Within fifteen days after the granting of any motion to strike, the party whose pleading has been stricken may file a new pleading;. 20 at 23; 25 at 12.) II DISCUSSION. A. Motion to Strike. Key in mind, a motion to strike must be filed within 30-days, per O.C.G.A. § 9-11-12(f). Tactical Advantage of a Timely Motion to Strike.