John D. McGavin

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...

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

Conflict is at the core of many divorces and can produce volatile emotions. Divorcing clients appreciate the combination of strength and compassion Katherine brings to her cases, especially when substance abuse, mental illness, domestic violence or contested child custody issues are involved. Katherine firmly believes in putting the children first in every divorce situation and in trying to reduce conflict between divorcing parents. A skilled problem-solver, Katherine acts decisively on behal...

Julia is one of the four founding partners of Rock Creek Energy Group. Julia has focused her practice primarily on hydroelectric and electric power matters since 2003. She provides strategic counsel to a broad variety of electric industry participants, including independent power producers, power marketers, investor-owned utilities, and state and municipal entities. She advises clients on issues involving the Federal Power Act (FPA), National Environmental Policy Act, Endangered Species Act, ...

David Schertler is widely recognized as one of the top white–collar criminal defense attorneys in the Washington area and nationwide. He founded Schertler & Onorato, LLP, in 1996 and has built the firm’s reputation as a premier litigation boutique through his broad experience with criminal and civil investigative and trial matters and the results that he has achieved for his clients. Mr. Schertler is known for his skilled and tenacious representation of individuals and entitie...

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

Mr. McGonigle focuses his practice on securities and investment regulation. His clients include broker/dealers, investment advisers, public companies, banks and individuals. He has experience in matters involving equity, fixed income, and derivative trading; broker/dealer and investment adviser compliance system design and review; fiduciary investment issues; regulatory registration issues; transactional disclosure issues; regulatory enforcement and grand jury representation; and litigation i...

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

Deborah B. Baum is a top attorney recognized by Best Lawyers in the practice area(s) of Litigation - Land Use and Zoning, Litigation - Real Estate and Litigation - Trusts and Estates. Deborah B., who practices law in Washington, District of Columbia, has been recognized since 2018. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Deborah B. is held by other top lawyers in the same geographic and legal practice area.

James P. Durling is a top attorney recognized by Best Lawyers in the practice area(s) of International Trade and Finance Law. James P., who practices law in Washington, District of Columbia, has been recognized since 2018. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which James P. is held by other top lawyers in the same geographic and legal practice area.