Robert M. Weinberg

Cynthia L. Santoni is a top attorney recognized by Best Lawyers in the practice area(s) of Medical Malpractice Law - Defendants. Cynthia L., who practices law in Fairfax, Virginia, has been recognized since 2007. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Cynthia L. is held by other top lawyers in the same geographic and legal practice area.

Bryan H. Parr is a top attorney recognized by Best Lawyers in the practice area(s) of Criminal Defense: White-Collar. Bryan H., 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 Bryan H. is held by other top lawyers in the same geographic and legal practice area.

Mr. Fox is the managing partner of Ivins, Phillips & Barker. He was named in 2012 by the Washingtonian Magazine for the fourth straight year as one of the outstanding tax lawyers in Washington, D.C., in the Washington Post Magazine's list of Super Lawyers for the third straight year, and has been named in Best Lawyers in America in each of the last ten consecutive years. Although, during his 47 years with the firm, Mr. Fox devoted a substantial portion of his activities to international a...

Elyse L. Strickland is a top attorney recognized by Best Lawyers in the practice area(s) of Commercial Finance Law and Family Law. Elyse L., who practices law in Potomac, Maryland, has been recognized since 2025. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Elyse L. is held by other top lawyers in the same geographic and legal practice area.

Margaret J. McKinney is a top attorney recognized by Best Lawyers in the practice area(s) of Family Law and Mediation. Margaret J., who practices law in Bethesda, Maryland, has been recognized since 2005. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Margaret J. is held by other top lawyers in the same geographic and legal practice area.

Christopher Babbitt represents clients in litigation and enforcement matters involving the federal government. He also advises clients on a range of compliance issues involving their interactions with federal officials and participation in the political process. Mr. Babbitt joined the firm in 2007 and is a member of the Government & Regulatory Litigation and Strategic Response practice groups.

Jeffrey B. Wall is a top attorney recognized by Best Lawyers in the practice area(s) of Appellate Practice. Jeffrey B., who practices law in Washington, District of Columbia, has been recognized since 2017. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Jeffrey B. is held by other top lawyers in the same geographic and legal practice area.

John S. Decker P.C. is a top attorney recognized by Best Lawyers in the practice area(s) of Energy Law. John S., who practices law in Washington, District of Columbia, has been recognized since 2021. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which John S. is held by other top lawyers in the same geographic and legal practice area.

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

Louis Mazawey brings decades of experience as an authority on the tax aspects of employee benefits in all forms to his work at Groom. As counsel to major insurance companies and a variety of plan sponsors—including corporate employers, trade associations, and public retirement systems—Lou has worked closely with qualified plans, 403(b) and 457 plans, IRAs, employee stock ownership plans, executive compensation, retiree medical benefits, plan terminations, mergers and spinoffs, the...