Theresa DeAngelis

Christopher S. Rizek is a Member in Caplin & Drysdale's Washington, D.C., office. He also serves as General Counsel to the firm. In 2014, he was listed in the elite "Leading Lawyer" list for Tax Controversy by The Legal 500 . Services Mr. Rizek represents taxpayers in all types of federal civil and criminal tax controversy matters. He also guides clients through IRS audits, prepares administrative claims and protests of IRS actions, and litigates tax and tax-related cases in U.S. district...

Michael Suga has extensive experience representing contractors, subcontractors, developers, and design professionals in litigation concerning public and private construction projects and engineering services. Michael has represented clients in various state and federal courts and in ADR mediation and arbitration proceedings. Additionally, Michael has provided advice and representation to clients during contract negotiations and during project execution in order to protect and preserve client ...

Lilah S. Rosenblum is a top attorney recognized by Best Lawyers in the practice area(s) of Immigration Law. Lilah S., 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 Lilah S. is held by other top lawyers in the same geographic and legal practice area.

Jason C. Chipman is a top attorney recognized by Best Lawyers in the practice area(s) of Privacy and Data Security Law. Jason C., 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 Jason C. is held by other top lawyers in the same geographic and legal practice area.

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...

George Sepsakos is a top attorney recognized by Best Lawyers in the practice area(s) of Employee Benefits (ERISA) Law. George, 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 George is held by other top lawyers in the same geographic and legal practice area.

Biz is a leader in the field of criminal defense and internal investigations focusing on white-collar defense and health care cases. Biz regularly represents clients in congressional and criminal fraud investigations as well as qui tam, Foreign Corrupt Practices Act (FCPA), False Claims Act (FCA), civil RICO, and employment litigation. She has counseled clients — including boards, audit committees, and management — on the development and implementation of internal compliance and e...

Robert A. Dormer is one of three founding members of Hyman, Phelps & McNamara, P.C. He has been an integral part of the firm’s growth and expansion in all areas of FDA law. He advises clients on a wide range of issues throughout the product lifecycle including development and approval, compliance, and enforcement. From 1976 to 1979, Mr. Dormer served in FDA’s Office of Chief Counsel. He was an Associate Chief Counsel for Enforcement and Associate Chief Counsel for Radiological...

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

Daniel T. Chaudoin is a top attorney recognized by Best Lawyers in the practice area(s) of Litigation - Securities. Daniel T., 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 Daniel T. is held by other top lawyers in the same geographic and legal practice area.