Catherine S. Duval

Katlin McKelvie is a top attorney recognized by Best Lawyers in the practice area(s) of FDA Law. Katlin, 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 Katlin is held by other top lawyers in the same geographic and legal practice area.

Catherine P. McCarthy is a top attorney recognized by Best Lawyers in the practice area(s) of Energy Law. Catherine P., who practices law in Washington, District of Columbia, has been recognized since 2022. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Catherine P. is held by other top lawyers in the same geographic and legal practice area.

Ilona Ely Grenadier Position: Partner. Founding Partner Background: Born, Baltimore, Maryland, May 18, 1940; admitted to Virginia Bar in 1968. Education: Mount Holyoke College (B.A., 1962); George Washington University (J.D., cum laude, 1967). Order of the Coif. Member: Alexandria, Fairfax , Virginia and American (Member, Family Law Section) Bar Associations; Virginia State Bar; Virginia Trial Lawyers Association ; American Academy of Matrimonial Lawyers ; International Academy of Matrimonial...

S. Mohsin Reza is a top attorney recognized by Best Lawyers in the practice area(s) of Commercial Litigation. S. Mohsin, who practices law in McLean, Virginia, has been recognized since 2025. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which S. Mohsin is held by other top lawyers in the same geographic and legal practice area.

Tom Vincent is a Partner at Pierson Ferdinand and is a Certfied Information Systems Security Professional, a Certified Regulatory Compliance Manager, and a Certified Information Privacy Professional/United States. Tom helps organizations navigate the complex legal landscape of cybersecurity, data privacy, compliance, and corporate governance with practical, business-minded legal counsel. Drawing on his background as a former banking executive and compliance officer, he brings a strategic, pre...

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

David G. Barger focuses his practice on white collar criminal defense, government investigations, including Foreign Corrupt Practices Act (FCPA) investigations, corporate compliance, including FCPA compliance, criminal and civil tax controversies, and complex commercial litigation. His practice includes representing companies and individuals in civil and criminal government investigations, often involving government contract issues; and handling complex civil litigation in both state and fede...

Natanya is a highly respected wealth planning attorney who appreciates the sensitive and technical nature of her practice. A specialist in estate planning and charitable matters, she places a high priority on understanding her clients’ concerns and goals at a holistic level, so her legal work meets each client’s unique needs. Natanya approaches every estate planning engagement with empathy, honesty and pragmatism. She communicates in a way that her clients understand, and ensures ...

David M. Lynn is a partner in the Washington D.C. Office of Morrison & Foerster, and is co-chair of the firm’s Corporate Finance practice. He is the former Chief Counsel of the Division of Corporation Finance at the U.S. Securities and Exchange Commission. Mr. Lynn is a highly respected securities advisory counsel who provides guidance to clients ranging from Fortune 500 to newly-public companies on securities law compliance, as well as counseling on corporate governance, executive ...

Steve Weber is a Partner in Peckar & Abramson PC ’s Washington, District of Columbia office and serves as Co-Chair of the firm’s Government Contracts practice. He brings more than 35 years of experience representing domestic and international contractors in construction law matters, including construction litigation and government contracts , in the United States and abroad. Steve’s practice focuses on representing construction contractors involved in power projects, hig...