Mark B. Langdon

John A.C. Keith is a top attorney recognized by Best Lawyers in the practice area(s) of Bet-the-Company Litigation, Commercial Litigation, Legal Malpractice Law - Defendants, Litigation - Trusts and Estates and Trusts and Estates. John A.C., who practices law in Fairfax, Virginia, has been recognized since 2006. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which John A.C. is held by other top lawyers in the same geographic and legal practice area.

David G. Noren focuses his practice on international tax planning for multinational companies. David advises clients on a wide range of “outbound” and “inbound” issues, with a particular focus on the subpart F anti-deferral rules, the application of bilateral income tax treaties, and the treatment of cross-border flows of services and intellectual property rights under transfer pricing and other rules. Read full biography: https://www.mwe.com/people/noren-david-g/

Andrew Rubin’s practice is focused on helping nonprofits and state, local, and tribal governments finance development projects that support local communities. Andrew also serves as a trusted adviser to nonprofits for tax and transactional matters. My focus I believe it is important to always have the right tools for a project. My toolbox includes federal tax credits, tax-exempt bonds, property assessed clean energy (PACE & C-PACE), state and local tax incentives and tax increment fi...

John Dalton is a top attorney recognized by Best Lawyers in the practice area(s) of Real Estate Law. John, 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 is held by other top lawyers in the same geographic and legal practice area.

Kim, a Martindale-Hubbell AV Preeminent rated attorney, is one of the founding Partners of the insurance subrogation firm of Rathbone Group, LLC. Recognized as a National Women in Law Honoree, a Super Lawyer Rising Star for 4 years, as an Inside Business One to Watch, and as one of the Top 25 under 35 in Cleveland, she has focused on insurance subrogation throughout her entire legal career. Kim was elected Managing Partner in 2019. Her responsibilities include supporting the firm’s clie...

Joel R. Grosberg is co-head of McDermott’s Antitrust Mergers Focus Group and assists clients on civil and criminal antitrust matters, including obtaining merger clearances, counseling and litigation. He has represented clients in obtaining antitrust approvals in numerous challenging transactions, and in other government antitrust investigations before the Department of Justice, the Federal Trade Commission (“FTC”) and foreign competition authorities. Joel has significant exp...

For more information, please visit www.gibsondunn.com/lawyer/papez-elizabeth-p/ .

Lita Rosario-Richardson is a top attorney recognized by Best Lawyers in the practice area(s) of Copyright Law. Lita, who practices law in Potomac, Maryland, has been recognized since 2026. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Lita is held by other top lawyers in the same geographic and legal practice area.

David A. Rosenberg is a top attorney recognized by Best Lawyers in the practice area(s) of Employment Law - Management and Litigation - Labor and Employment. David 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 David A. is held by other top lawyers in the same geographic and legal practice area.

Raymond (Ray) A. Jacobsen, Jr., advises clients on mergers, acquisitions and complex antitrust litigation. He has significant experience in the defense, medical devices, biotech, consumer product, energy and health care industries. Ray is the global head of McDermott’s Antitrust Practice and serves on the Management Committee. Read full biography: https://www.mwe.com/people/jacobsen-raymond-a/