I am not an attorney, which is why I am asking if concerned readers of Blue Mass Group may have some experience to share.
Massachusetts General Law reads as follows:
Chapter 29: Section 63. Unlawful exercise or departments abuse of power; commonwealth, commissions, officers, etc.; court restraintIf a department, commission, board, officer, employee or agent of the commonwealth is about to expend money or incur obligations purporting to bind the commonwealth for any purpose or object or in any manner other than that for and in which such department, commission, board, officer, employee or agent has the legal and constitutional right and power to expend money or incur obligations, the supreme judicial or superior court may, upon the petition of not less than twenty-four taxable inhabitants of the commonwealth, not more than six of whom shall be from any one county, determine the same in equity, and may, before the final determination of the cause, restrain the unlawful exercise or abuse of such right and power.