Mark S. Levinstein

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

Amanda Gilbert represents clients in all aspects of family law, including separation, divorce, child custody, adoption, and assisted reproductive technology. She combines her legal knowledge and experience with a solution-oriented approach to address complex family matters. Known for her empathy, patience, calm demeanor, and common-sense perspective, Amanda provides both strategic guidance and compassionate support during challenging family transitions. A trained mediator and Collaborative pr...

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

Ian represents companies, executives, and fiduciaries in connection with Employee Retirement Income Security Act (ERISA) litigation, employee benefits and executive compensation matters, class actions, and other commercial disputes. Trained as a trial lawyer, Ian has focused almost exclusively on employee benefits related litigation for the past 15 years. What do you focus on? I focus my practice on ERISA litigation. With broad experience in this area, I help defend plans, fiduciaries, and co...

Daniel S. Volchok is a top attorney recognized by Best Lawyers in the practice area(s) of Native American Law. Daniel S., who practices law in Washington, District of Columbia, has been recognized since 2020. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Daniel S. is held by other top lawyers in the same geographic and legal practice area.

Thomas L. McCally is a top attorney recognized by Best Lawyers in the practice area(s) of Litigation - Labor and Employment. Thomas L., who practices law in Washington, District of Columbia, has been recognized since 2020. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Thomas L. is held by other top lawyers in the same geographic and legal practice area.

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James V. Cole is a top attorney recognized by Best Lawyers in the practice area(s) of Employee Benefits (ERISA) Law. James V., 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 James V. is held by other top lawyers in the same geographic and legal practice area.

Harry L. Gutman is a top attorney recognized by Best Lawyers in the practice area(s) of Government Relations Practice and Tax Law. Harry L., who practices law in Washington, District of Columbia, has been recognized since 1997. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Harry L. is held by other top lawyers in the same geographic and legal practice area.

Diara M. Holmes serves as co-chair of the firm's Tax-Exempt Organizations Practice. She counsels tax-exempt organizations, including large public charities; colleges, universities and other higher education organizations; foreign charities and their U.S. affiliates; associations; government instrumentalities; social welfare organizations; and religious organizations on a broad range of tax compliance and governance issues. She advises nonprofit and for-profit organizations on structuring a va...