M. Allen Hopper

M. Allen Hopper

Senior Counsel

(415) 957-1800

(415) 974-1520

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Allen Hopper is Senior Counsel at Leland, Parachini. Allen’s practice focuses on cannabis regulatory law and policy. He is an experienced litigator, consultant and policy expert with deep substantive knowledge of federal, state and local cannabis laws and regulations. Allen advises and represents cannabis businesses seeking to navigate cannabis laws and regulations, as well as local governments and officials tasked with crafting and implementing them. Allen was  a member of the six-attorney drafting team for Prop. 64, the 2016 California ballot initiative that legalized adult non-medical cannabis use, creating the framework for the state’s regulated commercial cannabis market. While serving as the Director of the ACLU of California’s Criminal Justice and Drug Policy Project, Allen conceptualized and created the 2014-2015 California Blue Ribbon Commission on Marijuana Law and Policy chaired by then-Lt. Governor Gavin Newsom. Allen has represented local government entities litigating cannabis regulatory matters in state and federal courts, including the City and County of Santa Cruz (challenging a DEA raid of a local collective garden), and Pueblo, Colorado (defending a RICO lawsuit seeking to invalidate state marijuana laws as preempted by federal law). In 2008, Allen led the legal team that, working closely with the California Attorney General’s office, defeated San Diego County’s lawsuit seeking to overturn all California medical marijuana laws as preempted by federal law. Allen is co-author of two published law review articles, including Cooperative Federalism and Marijuana Regulation (62 UCLA L. Rev. 74 (2015)), which proposes an incremental and effective solution to the state-federal law conflict that would allow willing states to experiment with novel regulatory approaches while leaving the federal cannabis prohibitions intact for the remaining states.

Allen earned his B.A. degree from New College of Florida, the honors college of Florida, and his J.D. from the University of California, Davis.

Practice Areas

Appellate Litigation

Business & Corporate Transactions

Business Litigation

General Counsel Services

Cannabis & Hemp Law

Bar Admissions

U.S. District Court for the Northern District of California
U.S. District Court for the Eastern District of California
U.S. Court of Appeals for the Ninth Circuit
U.S. Court of Appeals for the Federal Circuit
U.S. Court of Claims
United States Supreme Court