Home > People > Michael Rosenblum

Michael Rosenblum


Los Angeles
310 282 2534 310 282 2534 direct

Michael is a partner in Thompson Coburn’s Corporate and Securities group and is co-chair of the firm’s Cannabis Practice. He is a versatile attorney with broad experience advising clients on corporate, regulatory and transactional matters, including mergers and acquisitions, real estate, and financing transactions.

Since first joining the firm in 2017, Michael has advised private and public clients and investors across a range of industries on legal issues including: 

      -M&A, joint ventures and other strategic transactions
      -Equity and debt financings
      -Commercial real estate 
      -Business contracts
      -Intellectual property
      -Venture capital and emerging companies
      -Entity formation and corporate governance

Michael was previously general counsel at STIIIZY, the nation’s top-selling cannabis brand, and he served as in-house counsel at Goldman Sachs in New York. From his robust in-house experience, Michael recognizes the importance of providing exceptional legal service, and his clients value his practical, entrepreneurial approach.

Michael has written extensively regarding legal and regulatory challenges to the cannabis industry, with articles appearing in publications including Law360 and the Los Angeles Daily Journal. He is the co-creator of the firm’s annual “Cannabis State-by-State Regulations” report.

A native of Los Angeles, Michael earned his J.D. from New York University School of Law and his B.B.A. from the Stephen M. Ross School of Business at the University of Michigan. He is licensed to practice law in both California and New York.

Thompson Coburn Publications

California's New Environmental Disclosure Laws Mandate Corporate Transparency


Cannabis Regulations: State-by-State Rankings for 2023


Authored, "Unveiling the pitfalls of proposed cannabis rescheduling and banking protections,"
Daily Journal, January 5, 2024

Interviewed, "How Does Cannabis Reclassification To Schedule III Differ From De-Scheduling & What Is Ideal Reform? Legal Expert Explains,"
Benzinga, December 6, 2023

Contributor, “How one Oregon entrepreneur is trying to sell marijuana out of state, legally,"
NPR "Planet Money" Podcast, November 29, 2023

“California Cannabis Delivery Case May Bring Black-Market Growth”
Law360 2020

"Cannabis at Work: What California Employers Need to Know”
Los Angeles Daily Journal 2017

“Hazy Outlook for Legislation Protecting Medical Cannabis”
Law3360 2017

“LA Leads the Way with Draft Commercial Cannabis Regs”
Law360 2017

"Why Medical Marijuana Delivery May Soon Be Legal in LA”
Law360 2017

“Clearing the Smoke Around the Farr-Rohrabacher Amendment”
Law360 2015


"An Overview of the Cannabis Legal Landscape,"
Association of Corporate Counsel St. Louis CLE, September 2020

"The Pot Thickens: How to Create a Successful Cannabis Business in California"
webinar, October 2017