Dave represents private and governmental clients in litigation, regulatory and administrative matters. Previously, he worked at Massport, as Chief Legal Counsel (2001-2013) and Interim CEO (2011-2012). While at Massport, Dave managed the successful defense of multi-billion dollar litigation stemming from the 9/11 attacks, and of nine lawsuits challenging a new Logan Airport runway.
David Mackey represents clients in high-profile matters. Recent examples include the defense of the Massachusetts Gaming Commission in multiple lawsuits brought to challenge the Commission’s casino licensing decisions, the defense of the MBTA in a consumer class action seeking damages for storm-related disruptions in commuter rail service, a petition for judicial review against the TSA on behalf of airport trade associations and 24 airport clients, and representation of the Martha’s Vineyard Airport Commission in a sovereignty dispute with Dukes County over Martha’s Vineyard Airport.
Dave also advises clients in governmental enforcement and regulatory matters, and has significant experience with internal investigations. He was recently Chair of the Board of Bar Overseers, and lectures frequently on legal ethics.
Prior to Massport, Dave was Chief of the Civil Division and then First Assistant U.S. Attorney at the U.S. Attorney’s Office in Boston. Dave had previously been a partner in Goodwin Procter’s Trial Department.