Mark Miller

Mark Miller leads Pacific Legal Foundation’s Environment & Natural Resources practice group, advancing a constitutional vision of natural resource policy that promotes human flourishing through freedom, ingenuity, and the protection of private property.

Under Mark’s leadership, the practice brings together attorneys, policy advocates, researchers, and scholars to defend the constitutional principles that allow people to use and benefit from the nation’s natural resources while restoring meaningful limits on government power.

Since joining PLF in 2014, Mark has helped shape the foundation’s natural resource and property rights litigation and policy. He has contributed to three unanimous PLF victories before the U.S. Supreme Court, strengthening constitutional protections for property owners and clarifying the limits of federal regulatory authority.

In 2020, Mark left PLF to enter public service, serving as general counsel and later chief of staff to South Dakota Governor Kristi Noem. In those roles, he advised the governor on constitutional, legal, and policy matters while helping lead state government through an extraordinary period of challenge and change. The experience reinforced his conviction that sound constitutional government expands opportunity, strengthens communities, and improves people’s lives. He returned to PLF in 2023 to continue advancing that vision.

Mark believes that liberty and virtue are complementary foundations of a flourishing society. Liberty without virtue leads to disorder; virtue without liberty becomes mere compliance. This conviction informs his approach to law and public policy.

In addition to his work at PLF, Mark serves as chair of the Florida Commission on Human Relations, having been appointed by Governor Ron DeSantis in 2025. He also serves on the boards of the University of Florida Levin College of Law and Farm of the Child USA, as well as the Florida Bar’s Constitutional Judiciary Committee.

Mark earned an Executive Master of Nonprofit Administration, with High Honors, from the University of Notre Dame’s Mendoza College of Business. He also earned undergraduate and law degrees, with honors, from the University of Florida. Early in his career, he clerked for U.S. District Judge Henry Lee Adams Jr. and Florida Appellate Judge Emerson R. Thompson Jr.

Mark and his wife, Mindy, a Catholic school principal, have four children—two graduates of the University of Florida and two graduates of the University of Notre Dame—and one grandchild. Mark and Mindy make their home in South Florida.

Mark is admitted to practice law in Florida and New Jersey.