SEAN MCALLISTER | The National Cannabis Industry Association
Mcallister Garfield, P.C.


21 years working on marijuana law reform, including founding Sensible Colorado in 2004 and serving as chair of its Board of Directors through adult use legalization in 2012.

McAllister Garfield has 15 lawyers, licensed in 5 states: Colorado, California, Oregon, Illinois and Florida.

Sean represents some of the largest infused products manufacturers in Colorado, which have been expanding to multiple states through licensing agreements and independent operations.

Sean’s firm has a Tribal Law Group that represents Native American tribes in multiple states seeking to do cannabis/hemp projects

Sean has litigated several groundbreaking cannabis cases, including defending the nation’s first cannabis products liability case, suing state regulators over enforcement actions, litigating pesticide standards, negotiating settlements for some of the most serious rules violations, litigating local bans on cannabis dispensaries; and assisting in authoring state and local ballot initiatives.

Sean handled the only federal prosecution of a licensed dispensary owner in Colorado, who was charged wrongly with federal money laundering and achieved a favorable outcome.

Sean is focused on being a top corporate counsel to dispensaries. His work involves all aspects of corporate formation, dissolution, governance, M&A, IP, promissory notes, civil litigation and land use matters.

Sean is a regular speaker at the nation’s largest cannabis conferences and is regularly quoted in the national press.

Sean has won several awards recognizing his advocacy for cannabis reform, including: Friend of Reform Award, Sensible Colorado, 2013 and 2015 MVP Award at the Cannabis Business Awards, and 2016 and 2017 named a Top Marijuana Lawyer by Denver’s 5280 Magazine.

Sean’s Firm is a sustaining member of NCIA. He also supports CCIA, NORML, DPA, MPP, Colorado Cannabis Chamber of Commerce, and National Cannabis Bar Association.

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