Mark Ogunsusi

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...

Matt Perushek has practiced personal injury law his entire career. He exclusively represents plaintiffs, those who were injured because of the negligence of others. He has represented clients in wrongful death, medical malpractice, brain injury, products liability, and serious automobile collision cases. Matt has tried cases in courts throughout Virginia, including Fairfax, Arlington, Prince William, Loudoun, Henrico, and Fredericksburg. Matt also has experience representing clients in federa...

Matthew F. Nieman is a top attorney recognized by Best Lawyers in the practice area(s) of Employment Law - Management and Litigation - Labor and Employment. Matthew F., who practices law in Reston, Virginia, has been recognized since 2021. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Matthew F. is held by other top lawyers in the same geographic and legal practice area.

Ellen Canan Grady is a top attorney recognized by Best Lawyers in the practice area(s) of Corporate Law. Ellen Canan, who practices law in Tysons, Virginia, has been recognized since 2023. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Ellen Canan is held by other top lawyers in the same geographic and legal practice area.

Michael A. Hass is a top attorney recognized by Best Lawyers in the practice area(s) of Commercial Litigation. Michael A., who practices law in McLean, Virginia, has been recognized since 2026. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Michael A. is held by other top lawyers in the same geographic and legal practice area.

James (Jim) Van Horn focuses his practice on restructuring and insolvency law. He is a trusted adviser valued by clients for his practical, results-oriented approach and creative strategies in solving complex matters within the framework of their business goals. Jim is ranked as a Band 1 bankruptcy/restructuring attorney by Chambers USA and is named to The Best Lawyers in America. Jim has deep experience working directly with senior management, investors, creditors and other stakeholders in m...

Paulette Chapman is a top attorney recognized by Best Lawyers in the practice area(s) of Personal Injury Litigation - Plaintiffs. Paulette, who practices law in Washington, District of Columbia, has been recognized since 2016. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Paulette is held by other top lawyers in the same geographic and legal practice area.

James A. Riedy focuses his practice on international tax matters, including a broad range of US tax issues for US multinational corporations. Read full biography: https://www.mwe.com/people/riedy-james-a/

Nathaniel Edmonds serves as the Co-Chair of the firm’s litigation practice in Washington, D.C., which houses over 100 lawyers handling a variety of litigation matters, including internal corporate investigations, white collar criminal defense, anti-corruption compliance, sanctions and export controls, data privacy and cyber security, intellectual property and patent litigation, international arbitration, and antitrust counseling. Mr. Edmonds focuses on global internal investigations, in...

Stephen Weissman is a top attorney recognized by Best Lawyers in the practice area(s) of Antitrust Law and Litigation - Antitrust. Stephen, 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 Stephen is held by other top lawyers in the same geographic and legal practice area.