Our People

National Security Law Firm was founded on a simple idea: when your future depends on a decision made by the federal government, it helps to have a team that understands how those decisions are actually made.

Many law firms can explain the law. Far fewer can explain how government agencies evaluate risk, assess credibility, determine trustworthiness, review mitigation, conduct investigations, and ultimately reach decisions affecting careers, security clearances, military service, federal employment, immigration status, credentials, licenses, and professional reputations.

Our attorneys have spent decades working inside the very systems our clients are now navigating.

Our team includes former government decision-makers, former judges, former prosecutors, former military leaders, former intelligence professionals, former federal employment attorneys, former investigators, and former security clearance adjudicators. Collectively, they bring firsthand insight into how government agencies investigate allegations, evaluate evidence, assess risk, and make decisions that can alter a person’s future.

Whether the issue involves a security clearance denial, military investigation, federal employment action, Global Entry revocation, immigration matter, government credential, administrative appeal, or national security concern, our attorneys understand how government systems operate because many of them previously worked inside those systems.

Katherine O’Brien
Co-founder