How Much Did Ethics Investigation of Stan Rosenberg Cost?

The Massachusetts Senate's ethics investigation of former Senate president Stan Rosenberg cost about $230,000, an legislative aide said.
A law firm hired by the Senate Committee on Ethics on December 19 released a report Wednesday detailing accusations against Bryon Hefner, the now-estranged civil-law husband of Rosenberg, including sexual assault and sexual harassment. The report finds that Rosenberg failed to restrain Hefner and instead allowed him to abuse his access to Rosenberg's trappings of power.