Mark A. Clifford

Mark A. Clifford



Mr. Clifford zealously represents plaintiffs in class action litigation challenging corporate greed and practices that place profits over people. He is actively litigating cases against financial institutions, big tobacco, and the insurance industry over fraudulent, unfair, and unlawful conduct that has harmed millions of consumers. He also is litigating a number of data breach cases, in which the personal information of millions of innocent victims was stolen due to the lax security practices of major corporations. In addition to his consumer protection practice, Mr. Clifford represents whistleblowers who come forward with information about fraud on government programs.

Prior to joining Tycko & Zavareei in 2019, Mr. Clifford was an Associate in the Washington, D.C. office of Covington & Burling LLP, one of the nation’s top defense-side firms. He uses his knowledge of how the other side operates to advance the interests of clients harmed by corporate wrongdoing. During his time at Covington, Mr. Clifford represented corporations in complex litigation and government investigations, including matters involving whistleblower allegations in the healthcare and technology industries. He also maintained an active pro bono practice, representing indigent defendants in immigration and criminal matters.

Mr. Clifford graduated magna cum laude from Georgetown University Law Center in 2015. While in law school, he was an Executive Editor of the Georgetown Law Journal. Following law school, Mr. Clifford clerked for the Honorable Catherine C. Blake of the United States District Court for the District of Maryland. Prior to law school, he worked on several political campaigns following his graduation with honors from the University of Georgia in 2009 with a Bachelor of Arts in International Affairs and a Master of Public Administration.

Mr. Clifford is admitted to practice law in the District of Columbia, Maryland, the United States District Court for the District of Maryland, and the United States Court of Appeals for the Fourth Circuit.