Mark E. Plotkin

John E. Smith is a top attorney recognized by Best Lawyers in the practice area(s) of International Trade and Finance Law. John E., 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 John E. is held by other top lawyers in the same geographic and legal practice area.

Paul F. Forshay is a top attorney recognized by Best Lawyers in the practice area(s) of Energy Law and Energy Regulatory Law. Paul F., 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 Paul F. is held by other top lawyers in the same geographic and legal practice area.

Scott Simmer founded the Simmer Law Group in Washington D.C., in 2014, but he’s been practicing law for decades and is a seasoned expert at rooting out deceit and fraud in hidden corners of government programs, education, and healthcare industries. Joining with Baron & Budd in 2018 to form our Washington D.C. office, Mr. Simmer continues to represent whistleblowers bringing qui tam cases of fraud under federal and state False Claims Acts as well as IRS, Securities and Exchange Commi...

William E. Fork is a top attorney recognized by Best Lawyers in the practice area(s) of Energy Law. William E., 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 William E. is held by other top lawyers in the same geographic and legal practice area.

Spencer F. Walters is a top attorney recognized by Best Lawyers in the practice area(s) of Employee Benefits (ERISA) Law. Spencer F., who practices law in Washington, District of Columbia, has been recognized since 2024. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Spencer F. is held by other top lawyers in the same geographic and legal practice area.

For more information, please visit www.gibsondunn.com/lawyer/diamant-michael/ .

Paul M. Hyman is a founding member of Hyman, Phelps & McNamara. Since opening the firm in 1980, he has led efforts to make it the premiere FDA law practice. He brings five decades of perspective to the regulatory priorities and policies of FDA and FTC. Mr. Hyman has advised clients on nearly every aspect of FDA regulation, ranging from premarket approvals, to labeling and post-market compliance, and has defended against enforcement actions such as warning letters, recalls, and court actio...

Leila Marie Jackson Batties is a top attorney recognized by Best Lawyers in the practice area(s) of Real Estate Law. Leila Marie Jackson, who practices law in Washington, District of Columbia, has been recognized since 2024. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Leila Marie Jackson is held by other top lawyers in the same geographic and legal practice area.

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...

Abbe David Lowell is a top attorney recognized by Best Lawyers in the practice area(s) of Criminal Defense: White-Collar. Abbe David, who practices law in Washington, District of Columbia, has been recognized since 2006. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Abbe David is held by other top lawyers in the same geographic and legal practice area.