In all civil proceedings which are not governed by the Massachusetts Rules of Civil Procedure or by the District-Municipal Courts Rules of Civil Procedure, the court may allow a party to whose pleadings a demurrer has been filed to amend, upon terms, within such time as it orders.
Mass. Gen. Laws ch. 231, § 52
Amendment after demurrer
Official source: Massachusetts Legislature. Reproduced from public-domain Massachusetts statutes; confirm against the official source for the current text. Not legal advice.