Mass. Gen. Laws ch. 186, § 15A: Waiver of notices; lease or rental agreement provisions; validity

Section 15A. Any provision of a lease or other rental agreement relating to residential real property whereby a lessee or tenant enters into a covenant, agreement or contract, by the use of any words whatsoever, the effect of which is to waive the notices required under section eleven or twelve, shall be deemed to be against public policy and void.