Massachusetts General Laws Part III. Courts, Judicial Officers and Proceedings in Civil Cases (Ch. 211-262) Ch. 223, § 49

Personal property which has been attached may, subject to the preceding section, be kept on the premises where it is found, unless the owner or occupant of the premises in writing requests the officer to remove his keeper therefrom; and if the defendant in writing requests the officer to allow property which has been attached on the premises of the defendant to remain there until he may give bond to dissolve the attachment, the property shall not be removed until he has had reasonable opportunity to give such bond.