Craig D. Margolis

Ryan P. O’Quinn Ph.D. is a lawyer recognized by Best Lawyers in the practice area of Biotechnology and Life Sciences Practice. Ryan P. practices law in Reston, Virginia Best Lawyers has recognized Ryan P. O’Quinn Ph.D. since 2026. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Ryan P. O’Quinn Ph.D. is held by other lawyers.

For more information, please visit www.gibsondunn.com/lawyer/warin-f-joseph/ .

David is the Managing Partner of Winston’s D.C. Office. He advises clients on the management of a variety of benefit plans, and regularly counsels on executive compensation arrangements. Clients describe him as “very knowledgeable, responsive, and practical” and “recommend David to any client seeking an employee benefits counsel” (Chambers USA). Please read more here: https://www.winston.com/en/who-we-are/professionals/rogers-david-e.html

Amy is a partner at BrigliaHundley. After graduating cum laude from Wake Forest University, she attended law school at the University of Florida, College of Law, where she graduated with honors and was a member of the Order of the Coif. She is admitted to practice in the state and federal courts in the Commonwealth of Virginia, Maryland, and the District of Columbia. Amy focuses on employment law, providing counseling and support to executives throughout the region. Her success in this area r...

Paul Delligatti is a lawyer recognized by Best Lawyers in the practice area of Mutual Funds Law. Paul practices law in Washington, District of Columbia Best Lawyers has recognized Paul Delligatti since 2024. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Paul Delligatti is held by other lawyers.

Diara M. Holmes serves as co-chair of the firm's Tax-Exempt Organizations Practice. She counsels tax-exempt organizations, including large public charities; colleges, universities and other higher education organizations; foreign charities and their U.S. affiliates; associations; government instrumentalities; social welfare organizations; and religious organizations on a broad range of tax compliance and governance issues. She advises nonprofit and for-profit organizations on structuring a va...

Michael Sharkey is a partner with the firm’s Insurance Recovery practice and concentrates his practice on representing policyholders in insurance coverage disputes nationwide. He has represented clients on a wide variety of insurance issues, including litigation seeking insurance coverage for alleged products liability, environmental contamination, water damage and mold, director’s and officer’s liability, errors and omissions, asbestos bodily injury and property damage, unf...

Peter M. Gillon is a lawyer recognized by Best Lawyers in the practice area of Insurance Law. Peter M. practices law in Washington, District of Columbia Best Lawyers has recognized Peter M. Gillon since 2019. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Peter M. Gillon is held by other lawyers.

Leon B. Greenfield has an exceptionally wide breadth of experience representing clients in complex antitrust-related matters. He has represented clients in cutting edge Section 2 litigation and agency matters. He has secured antitrust clearance for major acquisitions, litigated cases in federal and state court and counseled clients on many types of antitrust issues. Mr. Greenfield also has broad experience in matters outside the antitrust area, including securities regulatory matters and liti...

Jason M. Branciforte is a lawyer recognized by Best Lawyers in the practice area of Litigation - Labor and Employment. Jason M. practices law in Washington, District of Columbia Best Lawyers has recognized Jason M. Branciforte since 2018. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Jason M. Branciforte is held by other lawyers.