David P. Mattern

Chair of Brownstein’s National Tax Policy Group. Veteran of Capitol Hill who served for nearly a decade as Senate Finance Committee staff director. Creative strategist who finds legislative and regulatory solutions that save clients’ money. Russ Sullivan is one of the top tax attorneys and advocates in the country. When companies face risks in Washington, D.C., they turn to Russ to develop creative solutions that save their industry. For Fortune 50 companies, start-ups and nationa...

Alexis Ronickher jointly serves as the Managing Partner of the firm’s California office and divides her time between San Francisco and Washington, D.C. She represents clients in complex, often high-profile, employment and whistleblower matters, including whistleblower, sexual harassment, and civil rights discrimination and retaliation matters. As part of her whistleblower practice, she represents clients pursuing qui tam claims under the False Claims Act and whistleblower tips through t...

David A. Rosenberg is a top attorney recognized by Best Lawyers in the practice area(s) of Employment Law - Management and Litigation - Labor and Employment. David A., 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 David A. is held by other top lawyers in the same geographic and legal practice area.

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

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

Joseph R. Palmore is a top attorney recognized by Best Lawyers in the practice area(s) of Appellate Practice. Joseph R., 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 Joseph R. is held by other top lawyers in the same geographic and legal practice area.

James R. Hammerschmidt is a top attorney recognized by Best Lawyers in the practice area(s) of Commercial Litigation, Employment Law - Management and Litigation - Labor and Employment. James R., who practices law in Bethesda, Maryland, has been recognized since 2016. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which James R. is held by other top lawyers in the same geographic and legal practice area.

David D. Rines is a top attorney recognized by Best Lawyers in the practice area(s) of Communications Law. David D., 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 David D. 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.

An expert on ERISA’s fiduciary rules and government regulation of health insurance, including the Affordable Care Act (ACA), Jon Breyfogle counsels numerous financial services firms, health insurers, and their D.C.-based trade associations on retirement and health matters. His practice includes advice on regulatory and legislative strategies, compliance, and defense of federal and state investigations. Jon has testified before Congress and at Department of Labor hearings on both retirem...