Massachusetts General Laws Part III. Courts, Judicial Officers and Proceedings in Civil Cases (Ch. 211-262) Ch. 235, § 46

Terms for years, if the original lease was for one hundred years or more, and fifty years or more thereof remain unexpired, shall be regarded as real estate, for the levy of an execution thereon. Other terms for years shall be seized and sold on execution in like manner as personal property, except that the officer before selling the same shall give fourteen days' notice of the time and place of sale, by leaving a written notice thereof with the debtor personally or at his last and usual place of abode, and by posting a notice on the leased premises.