California • Washington • Hawaii
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Mitzi Hensley Vaughn

Mitzi_8.5_by_11-002.jpgMitzi Vaughn is the Managing Attorney for Greenbridge Corporate Counsel. She also oversees Greenbridge’s Washington state practice, advising the cannabis industry regarding corporate, transactional, and employment matters, as well as adult-use and medical cannabis regulations.  Mitzi has represented a wide variety of cannabis industry leaders: farmers, processors, retailers, nutrient manufacturers, real estate developers, interstate brands, investors, consultants, and software companies.

She advises governmental bodies regarding cannabis regulation, including the Washington State Legislature, the Hawaii Legislature’s Joint Health Committee, and the Jamaican Cannabis Licensing Authority.  Mitzi regularly speaks at conferences about cannabis law, and has been interviewed by radio, print, and television media regarding cannabis industry issues.

Mitzi is a member of the National Cannabis Industry Association (NCIA) and the Cannabis Alliance, serving as its General Counsel. She is on the Advisory Council of Students for Sensible Drug Policy (SSDP), the founding committee of the Ad Hoc US Coalition for Global Drug Policy Reform, and the founding board of the National Cannabis Bar Association (NCBA) where she serves as its legal education chair.

Before moving to the Seattle area, Mitzi taught legal research and writing at St. Mary's School of Law, and constitutional, race, and gender law at the University of Texas at San Antonio. She also owned a civil litigation practice focused on regulatory, corporate, employment, and health care matters.

Mitzi was awarded a J.D. from the University of California at Berkeley School of Law, a B.A. in History, magna cum laude, from the University of Texas at San Antonio, and clerked for the Alaska Court of Appeals in Anchorage.


  • J.D., University of California at Berkeley, Boalt Hall School of Law

  • International Human Rights Program, Central European University, Budapest, Hungary

  • B.A., History, magna cum laude, University of Texas at San Antonio

Bar Memberships

  • Washington

  • Texas