Ian A. Stewart

Professional Biography

Ian Stewart has defended complex litigation in state and federal courts for 25 years with a focus on product liability, complex general casualty, cannabis law, data privacy and cybersecurity, and intellectual property litigation. Ian is deputy regional managing partner of the firm’s Los Angeles office and a member of the Information Governance Leadership Committee.

As co-chair of the firm’s national Cannabis & Hemp Law Practice, Ian leads a national multidisciplinary team of lawyers who serve all aspects of the cannabis and hemp industries, as well as financial institutions and insurance companies that service those industries. Ian has been named to the prestigious Chambers USA 2020 guide in Cannabis Law.

Ian also is co-chair of the national Cybersecurity & Data Privacy Practice. He regularly defends data privacy class-action litigation and litigated matters involving invasion of privacy, right of publicity and statutory consumer claims.

  • More Legal and Business Bylines From Ian A. Stewart

Ian A. Stewart of Wilson Elser Moskowitz Edelman & Dicker LLP has been selected for a National Law Review Go-To Thought Leadership Award for his analysis of insurance coverage for cannabis related businesses. Mr. Stewart has excelled in coverage of cannabis insurance specifically; of special note is his contributions to the article “The SAFE Banking and CLAIM Acts Will Transform the Cannabis Insurance Industry – Here’s What to Expect.” This piece highlights the current U.S. cannabis market and explains the insurance-related changes that have come about from recent legislation.

Ian A. Stewart and his thought leadership on Marijuana & Cannabis law has been selected for a National Law Review Go-To Thought Leadership Award. Mr. Stewart ’s excellent coverage of the ever-evolving marijuana legislation and litigation landscape, especially his analysis of issues related to operating a marijuana-related business such as advertising, product liability and insurance as well as coverage of changes in legislation. A great example of his work is the article, New Rules for Cannabis: The Coming Wave of California False Advertising and Unfair Competition Claims.

The National Law Review names Wilson Elser Moskowitz Edelman & Dicker LLP a Go-To Thought Leader in cannabis law for the year 2022. In particular, the firm’s coverage of specialty cannabis products, such as Delta-8 and edible THC products, saw a substantial audience this year, serving as a valuable guide for attorneys and professionals in this area. Authors such as Ian A. Stewart and Leia Leitner provided key insights into topics such as the Ninth Circuit Delta-8 ruling, Minnesota’s inadvertent legalization of cannabis edibles, and much more.


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