John D. Wilburn

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

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

Habib F. Ilahi counsels business entities and individuals in highly regulated industries through complex health care, procurement, and other government enforcement investigations and litigation, as well as through general white collar criminal and civil defense matters. As a former federal prosecutor with the Fraud Section of the Department of Justice, Civil Division, Mr. Ilahi gained extensive expertise in matters involving the False Claims Act (FCA), the Anti-Kickback Statute, and the Stark...

Joseph H. Webster is a top attorney recognized by Best Lawyers in the practice area(s) of Gaming Law and Native American Law. Joseph H., 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 Joseph H. is held by other top lawyers in the same geographic and legal practice area.

For more information, please visit www.gibsondunn.com/lawyer/harrison-Donald/ .

Devon Hill counsels clients on the regulatory issues involved in the global marketing of new foods, cosmetics, packaging, and related products and compliance issues that arise for products already on the market. He has over two decades of experience assisting clients that make food, cosmetics, and materials that contact food. He primarily assists clients with regulatory compliance and safety and policy issues in the United States and most countries around the world. Food and drug packaging cl...

Marcia Kuntz resumed her family law practice in 2012 at the firm of Kuder, Smollar, Friedman & Mihalik, PC after years as a legislative counsel and committee staffer on Capitol Hill and as an adviser, editor, and executive in the non-profit sector. In addition to her legal practice, Ms. Kuntz has taught Family Law as an adjunct professor at American University Washington College of Law. In April 2022, she co-founded the firm of Smollar Kuntz Locey, PLLC. Ms. Kuntz started her legal career...

Arthur (Art) Garrett is Keller and Heckman’s General Counsel and co-chair of the firm’s national litigation practice. He advises clients on insurance recovery, with an emphasis on the representation of food industry policyholders in and out of court. Art specializes in advising food companies on their liability insurance programs, including GL, D&O, E&O, Excess/Umbrella, first-party property, and specialized insurance policies, such as product contamination insurance and m...

Mr. Cassidy focuses on legal issues raised by cross-border business transactions, including antidumping and countervailing duty proceedings, economic sanctions, export controls and customs issues. He is experienced in devising strategies for using trade law procedures, such as the antidumping laws, to achieve business objectives and in resolving disputes between companies and the US government arising from sanctions, export controls and customs laws. Mr. Cassidy served as General Counsel of t...

Paula Calimafde chairs the firm’s Retirement Plans , Employee Benefits and Government Relations practice groups and is also a senior member of the Estate Planning , Tax and Nonprofit groups. She has more than 35 years of experience advising companies and tax-exempt organizations on qualified and non-qualified retirement plans and employee benefits, including non-qualified deferred compensation, welfare benefit and cafeteria plans. She is a nationally recognized leader in the field of cr...