Massachusetts Motion is a type of motion to dismiss used by attorneys in the state of Massachusetts that is filed in response to a complaint. In Massachusetts, the motion is based on a Massachusetts Superior Court Rule 9(b), which states that a complaint should not be dismissed for failure to state a claim unless it appears beyond doubt that the plaintiff cannot prove any set of facts in support of the claim. The motion is typically used to challenge the sufficiency of the plaintiff's allegations in a complaint and to ask the court to dismiss the case without further proceedings. There are two types of Massachusetts Motion: a motion for judgment on the pleadings and a motion to dismiss. The motion for judgment on the pleadings is a motion that challenges the sufficiency of the complaint, while the motion to dismiss is a motion that challenges the legal grounds of the complaint. Both motions must be accompanied by a written memorandum of law and supporting documents.