Ulises R. Pin

As a former trial attorney for the DOJ, Dan knows the complexities of federal court litigation with federal agencies. He litigates cases for companies facing adverse regulatory initiatives or enforcement actions by agencies like the FDA. Dan Jarcho represents clients in federal trial court and appellate litigation involving federal regulatory issues. Dan has litigated numerous Administrative Procedure Act challenges to federal agency actions, including cases involving the U.S. Food and Drug A...

Ricardo Carvajal works with manufacturers and marketers of food and dietary supplements, OTC drugs, and cosmetics on a range of FDA, USDA, and FTC regulatory issues. Mr. Carvajal advises clients ranging from start-ups to multinational companies at all points in the supply chain, including bulk ingredient manufacturers, distributors of packaged goods, and retailers. He counsels clients on the regulatory status of ingredients and finished products, and provides advice on compliance with labelin...

Since joining Regan Zambri Long in 2013, attorney Chris Regan has served as a creative and dedicated advocate for injured clients. In that time, he has built a strong track record of outstanding results for his clients, including numerous seven- and eight-figure verdicts and settlements. He has successfully handled cases involving car crashes (including the leading local case on Uber’s and Lyft’s responsibility when their drivers are at fault), defectively unsafe product design, M...

Charlie Spies has been providing strategic political law counsel at the highest levels in Washington D.C. and globally for over two decades. Throughout his career, he has counseled a broad range of corporations, organizations, candidates, officeholders, and individuals through a variety of challenges arising when politics, the government, law, and public policy meet. Before moving to global law firms, Charles spent almost a decade working within national political organizations and campaigns,...

Personal injury lawyer Joseph Cammarata is a dual board-certified civil trial attorney, nationally known for his tenacity and perseverance in zealously representing clients in all stages of litigation. Mr. Cammarata's practice is concentrated in the areas of serious personal injury, brain injury, wrongful death and medical malpractice. He also successfully champions the rights of victims of discrimination and civil rights abuses. He has litigated against insurance companies, governmental enti...

Thomas Mueller's antitrust practice focuses on global cartel enforcement matters, as well as merger and other investigations. Having practiced both in Brussels and Washington, Mr. Mueller has insight into antitrust issues on both sides of the Atlantic and has helped steer clients through the difficulties and opportunities created by the closer cooperation between the US and EU authorities. Chambers describes him as "a figure of great stature within criminal and cartel investigation circles" a...

Justin Flint is a top attorney recognized by Best Lawyers in the practice area(s) of Ethics and Professional Responsibility Law. Justin, who practices law in Washington, District of Columbia, has been recognized since 2026. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Justin is held by other top lawyers in the same geographic and legal practice area.

Eric Wechselblatt is a Partner in the firm's Business Law Group and Co-Chair of the firm's Venture Capital and Emerging Growth Companies Team. He represents clients in a variety of corporate and securities activities, with an emphasis on venture capital transactions and other private placements, mergers and acquisitions, debt transactions, and general corporate matters. His clients are engaged in multiple industry sectors including software, telecommunications, services, information technolog...

Christopher Davies has more than 25 years' experience representing clients around the world in challenging circumstances. He has experience in complex civil, criminal and administrative matters, often involving crisis management. In just the past year, Mr. Davies has represented, among others: a party in the various investigations and litigation arising from the allision between the Dali and the Key Bridge; Norfolk Southern in investigations and litigation relating to the derailment in East P...

Robert Luskin is a partner in the Investigations and White Collar Defense practice at Paul Hastings and is based in the firm’s Washington, D.C. office. He is one of the best known and most highly-regarded litigators in Washington, D.C., concentrating in complex criminal litigation at both the trial court and appellate level. Beginning his career in government service, and having later transitioned into private practice, Mr. Luskin has represented clients in virtually every high-profile ...