David Bertoni

“In a search for class action and mass arbitration counsel with deep e-commerce experience, we came to know B&I. We’re glad we did. We’ve found their counsel to be practical, responsive, and creative in ways we haven’t experienced working with other firms. B&I has become our first call for any mass consumer actions.” 

Ken Hirschman, General Counsel, Udemy

With over three decades of experience representing direct marketers and multichannel retailers, David brings deep industry knowledge and a creative, results-driven approach to every case. From defending clients in complex litigation, class actions, and mass arbitrations to offering bespoke preventive strategies, David is dedicated to reducing legal risks and achieving successful outcomes.  

Known for identifying strategic opportunities others may overlook, his hands-on, personalized counsel—guided by the principle that every battle is won before it is fought—keeps clients several steps ahead in a fast-changing legal environment. Even when challenges arise mid-course, David has a knack for cutting through preconceptions and seeing paths to resolution that others might miss, helping clients find clarity and innovative solutions where others see only obstacles. Before moving to Maine, David worked under renowned criminal defense attorney and presidential counsel Robert S. Bennett, representing some of the world’s largest defense contractors in high-stakes investigations. His work included the FBI’s Operation Ill Wind, a case that Time magazine described as ‘one of the biggest federal white-collar crime cases ever prosecuted,’ shaking the foundations of the nation’s military-industrial complex. At Brann & Isaacson, David worked for many years alongside his friend and mentor, George Isaacson, in high-profile civil cases and state tax litigation across the United States.