A motion under Rule 12(b)(6), like the traditional demurrer, tests the legal sufficiency of the complaint, counterclaim, or cross-claim. I served a crossmotion (or a motion to strike) together with my opposition.An Affidavit of Objections, as set out in M. G. L. c. A Motion to Strike can remove pleas, statements, and evidence from judicial proceedings in a lawsuit. I am seeking clarification on filing a Motion to strike under MA Superior Civil Court Rule 9A governing the 9A Package? This form is available on Westlaw. Easily search more than 600,000 legal forms to find the exact form you need. Rule 12(f) Motion to Strike. This video describes the grounds and general procedures to file a motion to strike a complaint in a Connecticut civil lawsuit. To learn more about filling out legal forms, click to visit Basics of Court Forms and Filing.