Preserving America's Founding Principles

  • Defending the Constitution

  • Upholding the Rule of Law

  • Promoting Individual Liberty

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Landmark Legal Foundation — Defending the Constitution Since 1976

Landmark Legal Foundation is a national public interest law firm committed to preserving the principles of limited government, separation of powers, and federalism.  Landmark advances an “textualist” approach to the Constitution — that the words in the Constitution mean what they say — and defends our nation’s bedrock principle of liberty.   Please take some time to look through our website and review some of our most important work.  We appreciate and rely on the financial support of thousands of Americans across the nation.  Please feel free to join our email update list and, if you are able, to join our small army of supporters.

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Recent Posts


Landmark and Angel Families

in the U.S. Supreme Court

We are very proud and humbled to announce that Landmark Legal Foundation is representing a group of Angel Families — families who have lost loved ones to crimes committed by individuals who are in the United States illegally.  


The U.S. Supreme Court will review a Ninth Circuit Court of Appeals ruling approving a lower court's order blocking the Trump Administration's emergency declaration funding for border barrier construction.  Landmark is supporting the President's action citing his authority to defend the nation's borders.


These Angel Families bear witness to the tragic consequences that can result from a border that is not secure, especially when so-called sanctuary states and cities obstruct federal immigration enforcement efforts.

Contact Landmark Legal

Washington Office

19415 Deerfield Avenue

Suite 312

Leesburg, VA 20176

Phone: (703) 554-6100

Fax: (703) 554-6119

Kansas City Office

3100 Broadway

Suite 1210

Kansas City, MO 64111

Phone: (816) 931-5559

Fax: (816) 931-1115

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