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Diana Simpson

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Diana Simpson is an attorney with the Institute for Justice. She joined the Institute’s headquarters office in 2013 after working as a constitutional law fellow in the Arizona office.

Diana litigates cases to promote economic liberty, protect free speech, secure property rights and support school choice. She is part of the team representing grassroots speakers in Mississippi and Arizona who wish to engage in core political speech but whose rights have been infringed by campaign finance laws foisting a host of burdensome registration, reporting and disclosure requirements on speakers. She is currently lead attorney in a challenge to the application of Arizona’s veterinary licensing requirements to animal massage practitioners. She also represents homeowners in Winona, Minn., in a challenge to the city’s cap on rental licenses.

Diana’s work has been featured by The Economist, Reason, Stossel, and other print, radio and television outlets. She co-authored Arizona’s Profit Incentive in Civil Forfeiture: Dangerous for Law Enforcement, Dangerous for Arizonans. 

Diana received her law degree from the Roger Williams University School of Law in Bristol, R.I., in 2011, where she was president of the Federalist Society. She received her undergraduate degree from Sweet Briar College in Virginia in 2008 with a Bachelor of Arts in Economics and International Affairs. Diana originally hails from Littleton, Colo.

Diana is a member of the Colorado bar.

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