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The “Top 200 Cannabis Lawyers” now in its 7th annual edition is a professional directory developed to identify and highlight specialized legal experts serving the legal cannabis, hemp, and CBD industries globally.
Selection Criteria
To be included in the directory, individuals and teams undergo a research process that evaluates:
Industry Experience: How long they have worked specifically with cannabis businesses. Client History: The types of clients and vertical sectors (e.g., cultivation, retail) they have serviced.
Thought Leadership: Contributions to industry knowledge through articles, conference participation, and involvement with cannabis-related associations Why Cannabis Legal Specialists Are Required The global expansion of the legal cannabis industry has transformed a former black-market commodity into a multi-billion-dollar corporate juggernaut. However, this rapid evolution has created one of the most volatile and complex regulatory landscapes in modern history. Far from being a niche luxury, cannabis lawyers are a fundamental necessity for protecting business stability, driving economic growth, and advancing civil rights within the United States and across international borders.
The Fragmented Legal Landscape in the US
In the United States, the primary driver for specialized legal counsel is the staggering contradiction between state and federal law. While a vast majority of states have legalized medical or recreational adult-use marijuana, the federal government historically maintained its status as a prohibited Schedule I narcotic. Even with recent milestones—such as the Department of Justice moving to reclassify medical cannabis to Schedule III—the industry remains heavily constrained. This legal friction forces “plant-touching” businesses to navigate an obstacle course that mainstream businesses take for granted Banking and Taxation: Traditional banks routinely deny services to dispensaries out of fear of federal money laundering charges. Cannabis lawyers are essential for structuring compliant financial pathways and mitigating brutal tax penalties, like the legacy of IRS Section 280E. Interstate Commerce: Because crossing state lines with marijuana remains a federal offense, legal experts must ensure that supply chains, transportation, and logistics remain strictly within localized state boundaries.
The Global Maze of Compliance
On the international stage, cannabis legislation is an asymmetrical patchwork. Nations like Uruguay and Germany have legalized recreational use, others permit only medicinal frameworks, and many enforce severe criminal penalties. Global cannabis lawyers bridge these geopolitical gaps. Furthermore, global intellectual property (IP) is a battlefield. Because cannabis strains, specialized extraction technologies, and infused products cannot always secure standard federal patents or trademarks domestically, specialized attorneys must devise sophisticated international IP strategies to protect corporate assets from piracy.
Corporate Protection and Social Justice
Beyond high-stakes corporate maneuvering, cannabis lawyers serve two vital, ground-level functions:
Corporate Protection
Strict Operational Oversight: Attorneys guide cultivators and retailers through highly competitive licensing applications, rigorous seed-to-sale tracking, rigid packaging mandates, and evolving zoning laws.
Social Justice Equity
Undoing Historical Harm: Legal advocates champion social equity programs, working to secure expungements and restore voting rights for individuals disproportionately impacted by the War on Drugs.
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Alan Adcock is a partner in the Tilleke & Gibbins intellectual property and regulatory affairs groups, helping to oversee the firm’s client work in these areas across Southeast Asia. With deep expertise in life sciences regulation, Alan is a key advisor to clients in the cannabis, pharmaceutical, and industrial sectors, guiding them through complex legal landscapes involving product registration, clinical trials, labeling, advertising, and import/export compliance.Alan has played a pivotal role in supporting cannabis-related businesses, from medical cannabis startups to multinational life sciences companies, in navigating IP protection, licensing, and regulatory approvals in Thailand. His work includes advising on technology transfer, strategic IP structuring, and securitization agreements, as well as managing patent and trade secret litigation in the sector.
Since 2005, Alan has received recognition by Asialaw Leading Lawyers as one of Asia’s leading business lawyers in the area of intellectual property, and he has been named a top IP lawyer in Thailand by The Legal 500 Asia Pacific and WTR 1000. Alan is also recognized as a leading IP strategist by IAM Strategy 300, an expert on patents in IAM Patent 1000, one of the world’s foremost life sciences practitioners by IAM Life Sciences 250, and a leading life sciences regulatory lawyer by Who’s Who Legal. He heads the firm’s regional life sciences practice alongside Wongrat Ratanaprayul, director of the firm’s Indonesia office, as well as the firm’s China desk, alongside Derrick Khoo.
Alan serves as a member of the International Trademark Association (INTA) Emerging Issues Committee, and a member of the INTA Presidential Task Force on Brand Restrictions. He has just ended six years on the INTA Legislation and Regulation Subcommittee for East Asia and the Pacific—the final two years serving as Chairman. Based on his long-standing and exemplary volunteer services for INTA, he was awarded the INTA Volunteer Service Award in 2016.
Alan is a past President of the Licensing Executives Society (LES) of Thailand, and a Co-Chair of the American Chamber of Commerce in Thailand’s Food & AgriBusiness Committee, where he contributes to discussions on emerging regulatory frameworks for cannabis and other novel agricultural products. He is licensed to practice in New York and New Jersey and is admitted in the U.S. District Courts of Southern and Eastern New York.
Experience
- Conducted global intellectual property due diligence and advised on the transactional elements of a US$60 million equity participation by an international energy company in a U.S. company specializing in biobased chemicals. The collaboration will result in the establishment of bio-succinic acid production plants using natural raw feedstocks such as tapioca, cassava, maize, and other agricultural inputs for the downstream manufacturing of bio-based plastics.
- Assisted a client with a multijurisdictional acquisition of a major corn and palm oil brand with a deal value of USD 6,000,000, including the review and acceptance of the letter bid, preliminary due diligence, review of the disclosure statement, and the drafting, negotiation, and execution of the main acquisition agreement. We also provided all post-completion follow-up including trademark assignment recordals in more than 50 jurisdictions, release of various title encumbrances, transitional arrangements, rebranding, certification and labeling regulatory advice, and subsequent new agreements for supply and distribution.
- Helped a multinational food company comply with Thai FDA requirements. Advised the client on advertising and promotional materials in Thailand, with particular emphasis on the requirements of the FDA and the consequences of improper ad content.
- Acted on behalf of a major U.S.-based agrichemical manufacturer. The case involved termination of the client’s distributor for breach of contract and IP (patent and trademark) infringement. In addition, we represented the client in re-registration of its full range of products with the Thai Ministry of Agriculture.
- Represented a leading producer of smartphones as its “point of contact” with all government authorities, which involved crafting an overall government relations strategy, establishing and cultivating relationships with officials, responding to government investigations, monitoring potential policy and regulatory developments, and seeking legislative and regulatory change on our client’s behalf. We have also structured appropriate and effective solutions to the business and legal challenges faced by our client.
- Represented a multinational pharmaceutical company in its cancellation petition against a registered trademark based on the mark’s similarity to an International Nonproprietary Name (INN) issued by the World Health Organization (WHO). The Board of Trademarks withdrew the trademark.
+66 2056 5871
alan.a@tilleke.com
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