Dan Sennott, Co-Chair of Greenberg Traurig’s National Security Group, draws on nearly three decades of national security and defense experience to provide his clients with pragmatic, actionable advice on working with the Department of War and Congress. He represents clients across the full spectrum of the defense industrial base in public policy, government oversight, and regulatory matters. He routinely advises companies on appropriations, acquisition policy, advanced manufacturing, dual-use emerging technology, quantum communications, drone regulation, and government contracts. Dan regularly appears before the Department of War, each of the U.S. armed services, and the congressional defense and veterans’ affairs committees. His practice draws on more than two decades of military service and senior roles in the federal government.

Dan advocates for clients on a range of defense-related regulatory and legislative matters in the national security, defense, health care, and veterans’ affairs sectors. In addition to representing large and medium sized defense contractors, he also counsels start-ups that are new entrants to the defense industrial base, providing advice on compliance, facility security clearance issues, and industrial security requirements. He also advises on congressional investigations and government oversight processes, helping clients understand and respond to the legal and policy dimensions of these proceedings.

Before entering private practice, Dan served as the minority staff director for the U.S. House of Representatives Committee on Armed Services, where he was responsible for the development, negotiation, and passage of the annual National Defense Authorization Act. He previously served as the minority general counsel for the same committee, advising on national security law and congressional process, and as counsel and staff lead for the Military Personnel subcommittee. Dan served in the U.S. Army for more than twenty years as an armor officer and judge advocate, with assignments as a prosecutor, law professor, legislative liaison, and chief of military personnel law. His military decorations include the Legion of Merit, two Bronze Stars, and the Meritorious Service Medal.