Superior Court Rules  Superior Court Rule 9D: Motions for reconsideration

A Motion for Reconsideration shall be based on (1) newly discovered evidence that could not be discovered through the exercise of due diligence before the original motion was filed; (2) a change of relevant law; or (3) a particular and demonstrable error in the original ruling or decision. A Motion for Reconsideration shall otherwise raise no new grounds for relief not raised in the original motion or opposition and shall not reiterate previously advanced arguments.

Motions for Reconsideration shall be served and processed consistent with Rules 9A and 9C. A Motion for Reconsideration shall identify, in the first paragraph, the newly discovered evidence,
change of relevant law, or particular and demonstrable error in the original decision on which the motion is based. A Motion for Reconsideration based on a particular and demonstrable error in the original ruling or decision must be served pursuant to Rule 9A within 21 days of entry of the original ruling or decision.

A Motion for Reconsideration and supporting memorandum shall be contained in a single document and shall not exceed 10 pages in length. The words "MOTION FOR RECONSIDERATION" shall appear clearly in the title of the motion. Any opposition shall not exceed 10 pages in length. Upon filing, the clerk shall transmit the motion and supporting papers to the Justice who decided the original motion, but if that Justice has retired or is otherwise unavailable, the clerk shall transmit the motion to the Regional Administrative Justice for the region where the case is pending. If, upon reviewing the motion and supporting documents, the Justice desires to hold a hearing on the motion for reconsideration, he or she may schedule a hearing thereon. Alternatively, he or she may refer the motion for reconsideration to the Regional Administrative Justice for the region where the case is pending.

Motions seeking reconsideration of decisions made pursuant to Mass. R. Civ. P. 50(b), 52(b), 59(b), 59(e) or 60(b) are considered made or served for purposes of those rules on the date of service pursuant to Rule 9A, provided that the moving party shall also simultaneously file and serve a "Notice of Motion for Reconsideration" in the same manner as provided in the final sentence of Rule 9E.