John W. Castle

Alan Winston Granwell is a top attorney recognized by Best Lawyers in the practice area(s) of Tax Law. Alan Winston, who practices law in Washington, District of Columbia, has been recognized since 2006. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Alan Winston is held by other top lawyers in the same geographic and legal practice area.

Erik P. Arena is a top attorney recognized by Best Lawyers in the practice area(s) of Family Law. Erik P., who practices law in Bethesda, Maryland, has been recognized since 2014. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Erik P. is held by other top lawyers in the same geographic and legal practice area.

Grayson P. Hanes is a top attorney recognized by Best Lawyers in the practice area(s) of Eminent Domain and Condemnation Law, Litigation - Land Use and Zoning and Litigation - Real Estate. Grayson P., who practices law in Reston, Virginia, has been recognized since 1989. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Grayson P. is held by other top lawyers in the same geographic and legal practice area.

Recognized by the Washington Post as “ the feared attorney of the #MeToo movement ,” Debra S. Katz has been successfully litigating employment discrimination, civil rights, and whistleblower protection cases for nearly 40 years. Ms. Katz is a founding partner of Katz Banks Kumin LLP, where she concentrates her practice on employment discrimination, sexual harassment, wrongful discharge, whistleblower retaliation claims, and contractual employment disputes. She has developed extens...

James M. Maynor, Jr. is a top attorney recognized by Best Lawyers in the practice area(s) of Tax Law. James M., who practices law in McLean, Virginia, has been recognized since 2026. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which James M. is held by other top lawyers in the same geographic and legal practice area.

Sally Ann Hostetler is a top attorney recognized by Best Lawyers in the practice area(s) of Commercial Litigation and Litigation - Construction. Sally Ann, who practices law in Reston, Virginia, has been recognized since 2024. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Sally Ann 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...

Fred Goldberg is co-head of the firm’s Tax Group and global co-chair of the firm’s Diversity Committee. Mr. Goldberg first joined Skadden in 1986, following two years as chief counsel of the Internal Revenue Service. From 1989 until 1992, Mr. Goldberg served as commissioner of the IRS, and during 1992 he served as assistant secretary of the Treasury for Tax Policy. He returned to Skadden in December 1992. Working with his Tax Department colleagues in Skadden’s Washington, Ne...

Sarah C. Aviles is a top attorney recognized by Best Lawyers in the practice area(s) of Elder Law, Litigation - Trusts and Estates and Trusts and Estates. Sarah C., who practices law in Fairfax, Virginia, has been recognized since 2024. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Sarah C. is held by other top lawyers in the same geographic and legal practice area.

Marcus Owens represents a broad range of nonprofit organizations, including private foundations, charities, lobbying/political organizations and trade associations. The context has ranged from tax planning, the process of formation and application for exemption, through IRS and state attorney general investigations, including complex audits by IRS Exempt Organizations Financial Investigative Units. Marcus’ focus includes executive compensation, excess benefit and self-dealing excise tax...