Erin M. Sweeney

RJ Hamilton is a top attorney recognized by Best Lawyers in the practice area(s) of Real Estate Law. RJ, who practices law in Washington, District of Columbia, has been recognized since 2025. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which RJ is held by other top lawyers in the same geographic and legal practice area.

William Alexander is a top attorney recognized by Best Lawyers in the practice area(s) of Tax Law. William, who practices law in Washington, District of Columbia, has been recognized since 2024. 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.

Mr. Kovner represents clients in complex government antitrust investigations and litigations. He has cleared hundreds of challenging transactions through the HSR process, expeditiously and most often without the need for any remedies. Named a “National Litigation Star” for antitrust by Benchmark Litigation (2008–2020), Mark is consistently recognized as one of the country’s leading antitrust practitioners by Chambers & Partners USA; The Best Lawyers in America; Was...

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.

Scott works to design a creative, optimized path to problem solving that enhances their chances of recovery. Effective, thorough and practical, Scott is valued by clients and colleagues alike for his depth and breadth of knowledge and experience in insurance law, and for finding the right solution to each client’s distinct problem.Scott served co-lead counsel in a landmark class action trial, the first case of its kind to determine that insurance coverage was available, without aggregat...

Tania Klam is a cum laude graduate of George Mason University (B.A. in Government and International Politics with a minor in Legal Studies) and a graduate of the Penn State Dickinson School of Law (J.D. 2009). She is admitted to practice in Virginia, District of Columbia, New York, and Florida. She is fluent in Arabic and focuses her practice on Family Law. Ms. Klam began her legal career as a prosecutor in Brooklyn, New York where she served as an Assistant District Attorney. While there, sh...

For more information, please visit www.gibsondunn.com/lawyer/mueller-ronald-o/ .

Sam Spiritos’ clients recognize him as a sophisticated transactional attorney, trusted business advisor and an effective negotiator who truly understands their business needs. Over the course of his thirty-plus year career of successful deal-making, Sam has developed not only a masterful legal ability, but also strong relationships with many key players in the real estate markets in DC, Maryland, Northern Virginia and throughout the country. He draws upon this experience (which includes...

Stephanie J. Smith is a top attorney recognized by Best Lawyers in the practice area(s) of Family Law. Stephanie J., who practices law in Fairfax, Virginia, has been recognized since 2023. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Stephanie J. 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.