Greenberg Traurig, LLP has recently expanded its Washington, D.C., office by adding a six-member bipartisan team, enhancing its lobbying capabilities in the nation’s capital. This strategic move includes the appointment of Christopher DeLacy as Shareholder and Co-Chair of the Federal Government Law & Policy Practice, and Daniel Sennott as Shareholder and Co-Chair of the National Security group. Joel E. Roberson joins as a Shareholder, bringing expertise in drone policy and autonomous transportation. Misha Lehrer and Matthew P. Satterley join as Senior Directors, and James Hickey as Assistant Director. This team collectively brings over a century of public policy experience, encompassing bipartisan lobbying, political law, government ethics, national security, homeland security, defense advocacy, and specialized transportation policy and regulatory expertise in emerging technologies. They join from Holland & Knight. ([gtlaw.com](https://www.gtlaw.com/en/news/2026/04/press-releases/greenberg-traurig-lands-marquee-government-law-policy-and-national-security-additions-in-washington-dc?utm_source=openai))
In addition to this expansion, Greenberg Traurig has been actively strengthening its Washington, D.C., office with notable hires. In January 2026, the firm added a team of leading national security professionals, including Patrick Gilman, Neal Higgins, and Joshua W. Johnson, to bolster its National Security Group. ([gtlaw.com](https://www.gtlaw.com/en/news/2026/01/press-releases/three-leading-national-security-pros-join-greenberg-traurig-in-washington-dc-amid-rising-global-risks?utm_source=openai))
Further enhancing its capabilities, the firm welcomed former Federal Aviation Administration (FAA) Assistant Administrator Christopher J. Senn in June 2026. Senn brings extensive experience in transportation policy and regulatory matters, having served as a combat drone pilot for the Marine Corps and as legal counsel for the U.S. House of Representatives Transportation and Infrastructure Committee. ([prnewswire.com](https://www.prnewswire.com/news-releases/greenberg-traurig-adds-former-faa-assistant-administrator-chris-senn-to-government-law–policy-practice-302787692.html?utm_source=openai))
These strategic additions reflect Greenberg Traurig’s commitment to expanding its expertise and services in Washington, D.C., positioning the firm to better serve clients navigating complex regulatory and policy landscapes.