The MA chapter 180 gun certification requirements, as well as AG's double-secret requirements apply only to"purveyors of handguns". A purveyor of handguns is defined in MA as an entity which holds a Massachusetts license to sell firearms. Holding an FFL does not trigger it.
MA is not generally good about clear definitions, however, the situations under which one needs a MA dealer's license are precisely defined. If you sell/transfer more than 4 firearms in a calendar year, you need a MA dealer's license. Fewer than 4 and you do not.
This means that an FFL holder who sells 4 or fewer guns in a year does not need to hold a MA License to Sell Firearms, and is therefore not covered by the ch 180 list or AG consumer protection requirements.
Of course, since MA no longer allows home based FFL's, it's going to be hard to find someone who invested in an FFL who is willing to limit their sales and transfers to 4 per calendar year. If you find such a person, it's going to be even harder to convince them to use on of the 4 to do you a favor.