Roger E. Warin

M. Kendall Day is a top attorney recognized by Best Lawyers in the practice area(s) of Criminal Defense: White-Collar. M. Kendall, 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 M. Kendall 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.

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...

David is the managing partner of the Washington, D.C. office, as well as the co-leader of the Investment Management Group. Prior to joining Sullivan & Worcester, David was Special Counsel in the Washington, D.C. office of Gibson, Dunn & Crutcher. He previously served as Assistant General Counsel for Legislation and Investment Company and Adviser Regulation at the Securities and Exchange Commission and as Counsel to SEC Commissioner Aulana Peters.

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

Wayne Eig refers to himself as a business and tax lawyer for individuals and closely held entities, providing advice to clients involved in various business, investment, financial and succession planning activities. Sometimes, his clients are individuals or families, sometimes entities and often a combination of individuals/families and affiliated entities working together. Sometimes, these businesses have great value, sometimes they do not – but all of these clients have needs which re...

Peter Pfohl is a partner at Slover & Loftus LLP specializing in transportation, energy, administrative law, and legislative matters. He has been with the firm since 1997, and has represented a wide variety of clients, including railroad consumers, trade associations, state and local entities, and short-line and regional railroads. Mr. Pfohl actively participates in administrative adjudications, rulemakings, and hearings, in court litigation and appeals, and in the legislative arena.

Daniel Volchok's practice focuses on appellate litigation involving various areas of federal and state law, including arbitration, bankruptcy, civil rights, contracts, criminal law, due process, free speech, intellectual property, military law, Native American issues, preemption and tax. Mr. Volchok has filed numerous merits and amicus briefs in the US Supreme Court as well as state and federal appellate courts, and also participated in successful efforts to obtain or oppose certiorari.

Charles Levy focuses on legal and policy issues covering a broad range of international trade, investment, finance, economic sanctions, and export control matters. Mr. Levy is experienced in devising and implementing strategies for using trade laws, international litigation, and international negotiations to achieve business objectives, and in resolving disputes between companies and governments. In the area of international negotiations, he has worked on every major U.S. bilateral, regional ...

Recognized as one of The Best Lawyers in America © in the fields of commercial litigation and intellectual property, Susan Metcalfe is a veteran trial attorney who knows what it takes to get the job done for her clients both inside and outside the courtroom. With over eighteen years’ experience as a trial attorney, Susan has significant, substantive experience with an extremely broad array of litigation, including: Intellectual property (trade secrets, trademark, noncompetition agr...