A party may amend its pleading once without leave of the court at any time before the answer, demurrer, or motion to strike is filed. (h)(1) The motion provided for in this section may be granted with or without leave to file an amended complaint or answer, as the case may be.The Court should sustain MWD's demurrers and grant its motions to strike without leave to amend. ARGUMENT. The pleading is false; that is, untrue. The parties may stipulate without leave of court to one (1) extension of up to fifteen (15) days to respond to a complaint or cross-complaint. Govt. A party may amend its pleading once without leave of court at any time before the answer, demurrer, or motion to strike is filed. This guide contains generic forms and instructions for filing a typical motion, opposition, or reply in California state court. The pleading may be amended if the amended pleading is filed and served no later than the date for filing an opposition to the demurrer or motion to strike. "Any party, within the time allowed to respond to a pleading may serve and file a notice of motion to strike the whole or any part thereof … There are no fill-in-the-blanks Motion to Strike forms.