Chambers and Partners, the London-based legal research and rankings organization, has once again recognized Harris Sliwoski among the leading cannabis law firms in the United States. In its 2026 rankings, Chambers ranked Harris Sliwoski in Band 4 nationally and recognized two of the firm’s cannabis attorneys for their industry-leading work: Vince Sliwoski in Band 3 and Christian Sederberg in Band 1.
Chambers and Partners evaluates law firms and attorneys based on extensive independent research and client feedback, considering factors such as:
• Technical legal ability
• Professional conduct
• Client service
• Commercial awareness
• Diligence
• Commitment
View the Harris Sliwoski ranking HERE.
View Vince Sliwoski’s ranking HERE.
View Christian Sederberg’s ranking HERE.
Denver-based attorney Christian Sederberg received Chambers’ highest individual cannabis law ranking, Band 1. Christian is widely recognized as one of the pioneers of the regulated cannabis industry and has spent more than 15 years helping businesses, investors, and entrepreneurs navigate the rapidly evolving cannabis marketplace. He regularly advises clients on licensing, regulatory compliance, corporate transactions, and strategic growth initiatives across the cannabis sector.
Portland-based Vince Sliwoski was again recognized for his work in Cannabis Law, earning a Band 3 ranking. Vince is widely regarded as one of the country’s leading cannabis business attorneys and has also spent 15 years helping cannabis businesses navigate complex regulatory and business challenges. taught one of the nation’s first law school courses dedicated to cannabis law and policy, and runs the award-winning Canna Law Blog.
For more information about Harris Sliwoski’s Cannabis Law practice, please click HERE. To stay informed on cannabis industry legislation, regulation, and compliance, subscribe to our Canna Law Blog.
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