Marguerite Bateman

Barry Boss is co-chair of Cozen O’Connor’s Criminal Defense & Internal Investigations practice group, vice chair of the Commercial Litigation Department and office managing partner of the D.C. office. Prior to joining Cozen O’Connor in April 2004, Barry was an assistant federal public defender in Washington, D.C. Barry focuses his practice on complex criminal matters, particularly involving allegations of white-collar crime in federal court. Barry has extensive jury tria...

D. Kirk Morgan II is a top attorney recognized by Best Lawyers in the practice area(s) of Energy Law and Oil and Gas Law. D. Kirk, who practices law in Washington, District of Columbia, has been recognized since 2018. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which D. Kirk is held by other top lawyers in the same geographic and legal practice area.

David's practice consists of counseling independent directors of open-end funds, closed-end funds, exchange-traded funds and business development companies, as well as the funds themselves and their investment advisers on matters relating to the Investment Company Act of 1940, the Investment Advisers Act of 1940, the Securities Act of 1933 and the Securities Exchange Act of 1934.

Rosa S. Jeong focuses her practice on all aspects of international trade laws, including trade remedy proceedings before the U.S. Department of Commerce, the U.S. International Trade Commission, federal courts, and the World Trade Organization (WTO). She has counseled and represented companies in antidumping and countervailing duty proceedings, and appeals of such cases in the U.S. Court of International Trade and the U.S. Court of Appeals for the Federal Circuit. Rosa has also represented U....

Matthew J. Yao, Esq. is an attorney and owner of Yao Law Firm, P.C. His practice is focused primarily on Estate Planning and Probate matters. Mr. Yao is an attorney that likes numbers, which is an unusual combination that has made him a highly sought-after administrator of Trusts, Estates, and Conservatorships. Dedicated to providing excellent service to his clients, Mr. Yao has received recognition and awards from SuperLawyers, BestLawyers, and Virginia Business LegalElite, among others. His...

Deanne E. Maynard, chair of the Appellate and Supreme Court Practice Group, is a partner in the Washington, D.C. office, and a former Assistant to the Solicitor General at the United States Department of Justice. Ms. Maynard has argued 13 cases before the Supreme Court of the United States, and she has filed over 100 briefs in that Court. Her Supreme Court arguments include prevailing for the respondent in RadLAX Gateway Hotel, LLC v. Amalgamated Bank , an important bankruptcy case involving ...

Katherine D. Smith is a top attorney recognized by Best Lawyers in the practice area(s) of Family Law. Katherine D., who practices law in Reston, Virginia, has been recognized since 2026. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Katherine D. is held by other top lawyers in the same geographic and legal practice area.

Lisa Banks is a founding partner of Katz Banks Kumin LLP, where she concentrates her practice on sexual harassment and whistleblower retaliation , as well as employment discrimination, Title IX, SEC and CFTC whistleblower tips, and contractual employment disputes. Considered to be one of the leading attorneys of the #MeToo movement, Ms. Banks has successfully litigated employment discrimination and whistleblower protection cases at the trial court and appellate level for over 25 years. Ms. Ba...

William J. Cople III defends government contractors and commercial companies in a range of critical industries in government investigations, litigation, trials, and prosecutions involving the False Claims Act, Anti-Kickback statute, and Foreign Corrupt Practices Act, and handles corporate internal investigations, whistleblower claims, and Congressional investigations. He represents pharmaceutical, medical device, financial institution, and engineering and construction firms as trial counsel i...

William McConagha is a top attorney recognized by Best Lawyers in the practice area(s) of FDA Law. William, who practices law in Washington, District of Columbia, has been recognized since 2014. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which William is held by other top lawyers in the same geographic and legal practice area.