J. Derek "Derek" Mason

Deanne E. Maynard, chair of the Appellate and Supreme Court Practice Group, is a partner in the Washington, D.C. office, and a former Assistant to the Solicitor General at the United States Department of Justice. Ms. Maynard has argued 13 cases before the Supreme Court of the United States, and she has filed over 100 briefs in that Court. Her Supreme Court arguments include prevailing for the respondent in RadLAX Gateway Hotel, LLC v. Amalgamated Bank , an important bankruptcy case involving ...

Sean A. Atkins is a top attorney recognized by Best Lawyers in the practice area(s) of Energy Law. Sean A., who practices law in Washington, District of Columbia, has been recognized since 2020. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Sean A. is held by other top lawyers in the same geographic and legal practice area.

Stuart Sears is an experienced trial attorney whose practice focuses on criminal and white collar defense. Before joining Schertler & Onorato LLP, Mr. Sears was a partner at a law firm in Alexandria, Virginia, where he represented individuals in a wide array of federal and state criminal proceedings. Mr. Sears's broad defense experience includes representing individuals charged with health care fraud, false claims, money laundering, mail and wire fraud, illegal structuring, and mortgage f...

J. Mark Poerio is a top attorney recognized by Best Lawyers in the practice area(s) of Employee Benefits (ERISA) Law. J. Mark, who practices law in Washington, District of Columbia, has been recognized since 2013. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which J. Mark is held by other top lawyers in the same geographic and legal practice area.

For more information, please visit www.gibsondunn.com/lawyer/dupree-jr-thomas-h/ .

Sharie R. Albers is a top attorney recognized by Best Lawyers in the practice area(s) of Family Law. Sharie R., who practices law in Fairfax, Virginia, has been recognized since 2026. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Sharie R. is held by other top lawyers in the same geographic and legal practice area.

Perry A. Lange is a top attorney recognized by Best Lawyers in the practice area(s) of Litigation - Antitrust. Perry A., who practices law in Washington, District of Columbia, has been recognized since 2021. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Perry A. is held by other top lawyers in the same geographic and legal practice area.

Michael Spafford is a partner in the Investigations and White Collar Defense practice of Paul Hastings and is based in the firm’s Washington, DC office. Mr. Spafford’s practice focuses on white-collar criminal defense, government investigations, regulatory enforcement, internal investigations, and related litigation. He has represented financial institutions, funds and other companies, as well as individual clients in numerous high-profile government investigations and parallel li...

Mark A. Grider is a top attorney recognized by Best Lawyers in the practice area(s) of Criminal Defense: White-Collar. Mark A., who practices law in Washington, District of Columbia, has been recognized since 2025. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Mark A. is held by other top lawyers in the same geographic and legal practice area.

Guy Martin is one of the senior natural resources, energy and environmental lawyers in Washington, D.C., with years of direct high level experience in the Congress, in the Executive Branch and at the state level. Guy has years of experience representing and counseling clients with serious objectives and problems to solve in the federal government. He covers virtually every resource area from land and water to energy resources, as well as Indian law and policy, including tribal gaming issues. ...