Upon suspending proceedings under this section the court may enter any interlocutory or temporary orders it deems necessary and proper pending final action by the regulatory board or officer and trial, if any, in the court, including issuance of injunctions, certification of a class, and orders concerning the presentation of the matter to the regulatory board or officer. The court shall issue appropriate interlocutory orders, decrees and injunctions to preserve the status quo between the parties pending final action by the regulatory board or officer and trial and shall stay all proceedings in any court or before any regulatory board or officer in which petitioner and respondent are necessarily involved. The court may issue further orders, injunctions or other relief while the matter is before the regulatory board or officer and shall terminate the suspension and bring the matter forward for trial if it finds (a) that proceedings before the regulatory board or officer are unreasonably delayed or otherwise unreasonably prejudicial to the interests of a party before the court, or (b) that the regulatory board or officer has not taken final action within six months of the beginning of the order suspending proceedings under this chapter.
Mass. Gen. Laws ch. 93A, § 9