This page gives basic information about a few of these options, such as filing a motion, demurrer, or cross-complaint. A motion to strike a complaint or cross-complaint must be brought within thirty (30) days of service of summons.For motions, all supporting documents may be scanned and uploaded as one document under a filing that most closely captures the type of motion. A motion to strike can be used to attack legal conclusions in a pleading. The text of your document begins here. DATED: September 28, 2011. There is no mechanical answer, but an opposition to any motion, even a onepage memo contra, is the minimum. INSERT DOCUMENT TITLE (e.g. Prop. 47 changed the law so that some low level, non-violent felonies can only be charged as misdemeanors for most people. Forms and samples for commonly filed documents in the Court of Appeal and superior courts.