John O’Neill, a seasoned litigator, offers strategic counsel and advocacy in high-stakes disputes for a diverse clientele. His practice focuses on insurance coverage, business litigation and professional liability. John navigates cases ranging from coverage and bad faith suits to commercial disputes, including consumer protection class actions, and professional negligence claims against attorneys, architects, engineers, accountants and other professionals. He also represents attorneys in disciplinary proceedings. John previously served as a disciplinary hearing officer for the Massachusetts Board of Bar Overseers.

Outside of the office, John enjoys skiing and spending time with his family. He also helps maintain public-use hiking trails in his community and volunteers with the local Scouts BSA troop.