In 1986 Santagati moved from NYNEX to Gaston & Snow, which was then Boston's fifth largest law firm. He initially became the
Chief Operating Officer. Though it was then an unusual step for a law firm to put a non-lawyer in a high-profile executive role, he later became the CEO of the company. During his tenure at Gaston & Snow the legal fees, overhead, and lawyer salaries skyrocketed, as was the case at many of their competitors. In the early 1990s Gaston & Snow's finances rapidly deteriorated and they were forced to lay off employees. Gaston & Snow filed for bankruptcy in October 1991. Some of the factors that caused the bankruptcy include heavy debt, the loss of partners, and conflict between executives. The
Boston Globe referred to it as "worst implosion of a Boston law firm in history". Some blamed Santagati for Gaston & Snow's failure. One of the bankruptcy trustees accused him of "fraud, negligence and breach of fiduciary duty". The allegations also included charges that he "manipulated the firm's internal systems to boost his own compensation, standing and business reputation". Many Boston lawyers argued, however, that the bankruptcy was the fault of senior lawyers at Gaston & Snow. Santagati's defenders contend that some lawyers who were already the highest paid employees of the firm insisted on higher pay and blocked plans to rescue the company. After leaving Gaston & Snow in 1991 Santagati served as a partner in the
Boston-based
venture capital firm Lighthouse Capital Management for a year before becoming the CEO of Artel Communications from 1992 to 1994. ==Merrimack College==