Deidre G. Duncan

Mary Ann Mancini's practice focuses on advising high net worth families and individuals who reside in the United States and internationally. Her clients include leaders of Fortune 100 companies and their families, as well as families whose wealth is more privately held and, in many cases, based on real estate ownership. Mary Ann counsels her clients on all matters that affect their estates, including the structuring and formation of entities, the creation of irrevocable “dynasty” ...

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...

Stephanie Monaco provides strategic counsel to investment management firms (including dually-registered investment advisers and broker-dealers) in their delivery of investment advice to a wide variety of investment advisory clients, including private funds, managed accounts, institutional and retail account services, and registered investment companies. She leverages her prior experience as an attorney with the U.S. Securities and Exchange Commission (SEC), and decades in private practice, to...

Ian Paul Fisher is a top attorney recognized by Best Lawyers in the practice area(s) of Native American Law. Ian Paul, 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 Ian Paul is held by other top lawyers in the same geographic and legal practice area.

Glenn M. Cooper is the chair and senior member of the firm’s Litigation and Family Law practices. He frequently appears before federal and state courts at both the trial and appellate levels, and before arbitration panels and professional disciplinary boards. The majority of his practice is devoted to complex business, financial, commercial and domestic litigation involving significant business issues. A number of Mr. Cooper’s cases have helped shape the current state of the law i...

Kirk Niemi is an experienced construction industry attorney who focuses his practice on construction litigation, government contracts, surety, and associated contract issues. He represents owners, general contractors, subcontractors, sureties and government agencies including highway departments and municipalities. He has extensive experience in complex matters before courts, arbitrators and mediators regarding various construction issues including mechanics' liens, acceleration claims, chang...

Harry Kelly’s practice focuses on transactional and litigation aspects of housing, fair housing, reasonable accommodations, and accessible design, government contracts, financial institutions and bankruptcy law. He counsels owners of firms—particularly those active in real estate and housing—with respect to issues related to the operations of their businesses and assists them in litigation and enforcement matters. He also advises government contracts clients on transactional...

Ms. Javitt provides strategic FDA regulatory advice for leading medical device, diagnostics, pharmaceutical, biological products, and human cellular, and tissue-based products (HCT/Ps) throughout the product life cycle and has successfully resolved disputes at both the pre- and post-market stage. She also has significant experience advising clinical laboratories on FDA and CLIA requirements for laboratory developed tests. Ms. Javitt’s experience prior to joining Hyman, Phelps & McNa...

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

Jonathan Phillips is a top attorney recognized by Best Lawyers in the practice area(s) of Health Care Law and Qui Tam Law. Jonathan, 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 Jonathan is held by other top lawyers in the same geographic and legal practice area.