Mass. Gen. Laws ch. 221 § 43
No attorney at law shall, through any runner, agent or person, hereinafter called a runner, who is employed by him solicit a person to employ him, nor shall any such runner solicit a person to employ such attorney, to present a claim for damages, or to prosecute an action for the enforcement thereof, and no attorney at law or runner shall directly or indirectly give or promise any person any money, fee, commission, profitable employment or other personal advantage in consideration of his employing such attorney on behalf of a person having a claim for damages, or of his soliciting or procuring the person who has such claim to employ such attorney to present such claim or to prosecute an action for the enforcement thereof. No attorney at law shall appear in any action or suit for the enforcement of a claim in connection with which he has violated this section. A district court, upon complaint alleging violation of any provision of this section by any runner who resides or has a place of business within its judicial district, may issue an order of notice to the person complained of to show cause why he should not be ordered to desist and refrain from violation of any such provision on penalty of contempt.
Mass. Gen. Laws ch. 221, § 43