Healey began her legal career by clerking for Judge A. David Mazzone of the United States District Court for the District of Massachusetts, where she prepared monthly compliance reports on the cleanup of the Boston Harbor and assisted the judge with trials, hearings, and case conferences. Healey subsequently spent more than seven years at the law firm Wilmer Cutler Pickering Hale and Dorr LLP, where she worked as an associate and then junior partner and focused on commercial and securities litigation.
