John M. Simpson

Gil Ghatan is a top attorney recognized by Best Lawyers in the practice area(s) of Tax Law. Gil, who practices law in Washington, District of Columbia, has been recognized since 2023. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Gil is held by other top lawyers in the same geographic and legal practice area.

Margaret J. McKinney is a top attorney recognized by Best Lawyers in the practice area(s) of Family Law and Mediation. Margaret J., who practices law in Bethesda, Maryland, has been recognized since 2005. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Margaret J. is held by other top lawyers in the same geographic and legal practice area.

John D. Seiver is a top attorney recognized by Best Lawyers in the practice area(s) of Communications Law. John D., who practices law in Washington, District of Columbia, has been recognized since 2023. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which John D. is held by other top lawyers in the same geographic and legal practice area.

Marcus Greene is a top attorney recognized by Best Lawyers in the practice area(s) of Family Law. Marcus, who practices law in Vienna, Virginia, has been recognized since 2025. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Marcus is held by other top lawyers in the same geographic and legal practice area.

Lance Brasher is the head of the firm’s North American Energy and Infrastructure Projects Group. He has served for more than 20 years as lead lawyer in complex acquisition, financing and development transactions involving energy and infrastructure facilities in the United States and around the world. Mr. Brasher has advised diversified energy companies, utilities, private investment firms and financial institutions in all phases of solar, wind and other renewable energy projects; gas an...

Robert W. Zelnick is a nationally recognized intellectual property (IP) lawyer with an established record of success. Although he is also a registered patent attorney, for more than two decades Robert has focused his practice on trademark, unfair competition and false advertising matters, where he counsels clients on complex IP issues and serves as lead counsel for major clients in federal trial and appellate courts. According to client feedback in World Trademark Review, as the former head o...

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...

David Brown is co-chair of the firm’s corporate practice area, which includes its corporate, energy, finance, health care, real estate and public policy groups, and a partner in the Financial Services & Products Group, which he previously led. His practice focuses on mergers and acquisitions, corporate governance, securities disclosure, and payment system and other technology transactions, with an emphasis on the financial services, technology and telecommunications industries. Davi...

Adam M. Smith is a top attorney recognized by Best Lawyers in the practice area(s) of International Trade and Finance Law. Adam M., who practices law in Washington, District of Columbia, has been recognized since 2023. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Adam M. is held by other top lawyers in the same geographic and legal practice area.

Kevin P. O’Brien is a partner in the firm’s Employee Benefits and Executive Compensation practice. His practice has concentrated in employee compensation and benefits for over 30 years. Kevin is widely known as a leader in a wide variety of subjects, including innovative defined benefit plan design, flexible benefits, ERISA fiduciary matters and executive compensation. Before joining the firm, Kevin worked in the Pension and Welfare Benefits Administration at the Labor Department ...