Mark B. Langdon

William McLucas is one of the most sought-after advisors to public companies, boards of directors, audit committees and special committees dealing with corporate crises and related issues. He joined the firm after serving for more than eight years as Director of Enforcement for the Securities and Exchange Commission—longer than any other Enforcement Division Director in Commission history. He represents public companies, investment banks, accounting firms and advisors to mutual funds fa...

Gregory Giammittorio represents private and publicly held companies in all stages of growth on a range of issues involving mergers and acquisitions, joint ventures, strategic alliances, venture capital, and public and private securities offerings. Mr. Giammittorio has recently worked on mergers and acquisitions for government services, telecommunications, energy, software, semiconductor, information technology, medical device, media, and life science companies. He has developed numerous acqui...

Kristen Klesh is a top attorney recognized by Best Lawyers in the practice area(s) of Advertising Law. Kristen, 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 Kristen is held by other top lawyers in the same geographic and legal practice area.

Thomas F. Quinn III is a top attorney recognized by Best Lawyers in the practice area(s) of Corporate Law and Tax Law. Thomas F., who practices law in Reston, Virginia, has been recognized since 2022. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Thomas F. is held by other top lawyers in the same geographic and legal practice area.

Todd Metz focuses his practice on disputes, with experience in arbitration proceedings as well as litigation relating to major domestic and international construction projects. His practice also focuses on the consultation, preparation and dispute resolution of claims arising out of domestic and international construction projects. His experience includes representation of contractors, owners, and design professionals before domestic and international arbitration tribunals, dispute adjudicati...

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.

Amy S. Griggs is a top attorney recognized by Best Lawyers in the practice area(s) of Medical Malpractice Law - Plaintiffs, Personal Injury Litigation - Plaintiffs and Product Liability Litigation - Plaintiffs. Amy S., who practices law in McLean, Virginia, has been recognized since 2022. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Amy S. is held by other top lawyers in the same geographic and legal practice area.

Jeffrey F. Robertson is a top attorney recognized by Best Lawyers in the practice area(s) of Litigation - Securities and Securities Regulation. Jeffrey F., who practices law in Washington, District of Columbia, has been recognized since 2011. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Jeffrey F. is held by other top lawyers in the same geographic and legal practice area.

Matthew J. Malinowski is a top attorney recognized by Best Lawyers in the practice area(s) of Mass Tort Litigation / Class Actions - Defendants. Matthew J., 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 Matthew J. is held by other top lawyers in the same geographic and legal practice area.

R. Peyton Mahaffey is a top attorney recognized by Best Lawyers in the practice area(s) of Litigation - Trusts and Estates and Personal Injury Litigation - Plaintiffs. R. Peyton, who practices law in Fairfax, Virginia, has been recognized since 2011. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which R. Peyton is held by other top lawyers in the same geographic and legal practice area.