Vince Sliwoski

Vince is an award-winning business lawyer, problem solver and dealmaker. His clients run the gamut from individual investors and entrepreneurs to widely held domestic and international corporations. Based in Portland, Oregon, he is Managing Partner of Harris Sliwoski and Editor of the Canna Law Blog and the Psychedelics Law Blog.

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Oregon’s New Cannabis Laws: 2025 Edition

The 2025 Oregon legislative session adjourned on June 27, 2025. Six bills passed with respect to cannabis. Of these, I covered SB 162 and SB 558 last month in Oregon Cannabis Roundup: June 2025, so please head over to that post if you’d like a full recap. Today I’ll give an extremely brief summary of

cannabis hyperemesis syndrome

The Very Large and Vexing Lawsuit Re: Cannabinoid Hyperemesis Syndrome

You may have seen this article or some other article yesterday or today, covering the Ontario Supreme Court’s recent certification of a national class action lawsuit against Aurora Cannabis. The defendant entities are all part of the same conglomerate, with Aurora Cannabis Inc. being the parent. You can view their vast array of cannabis products

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Oregon Cannabis: Getting a Good Start

Running a cannabis business is difficult and many people fail. These ventures bottom out for myriad reasons, although owners tend to blame federal law issues first of all. It’s true that federal law creates a tough environment for cannabis businesses (tax issues, market saturation, geographic constraints, etc.), but federal prohibition also has kept big money

oregon cannabis

Oregon Cannabis Roundup: June 2025

Time for another Oregon cannabis roundup. Time to cover some important legislative and OLCC updates, specifically. Legislative updates Senate Bill 558 Governor Tina Kotek signed this bill into law last week, on May 28th. There are some key differences to the law signed by Kotek and the version of SB 558 that I previewed in

canna provisions

First Circuit Holds the Line Against Cannabis Businesses

In fall of 2023 I wrote about the lawsuit to end federal prohibition that wouldn’t really end federal prohibition. Last July, a federal district court ruled against Canna Provisions et al. in that case. On Wednesday, May 27th, the First Circuit Court of Appeals upheld the lower court’s ruling. The First Circuit decision means the

cannabis business loi term sheet

Cannabis Transactions: I ❤️ Letters of Intent

In cannabis contract negotiations, it’s common for the parties to execute an early-stage document called a letter of intent (“LOI”). An LOI may also be called a term sheet; naming it one over the other has no legal significance. I love these little agreements and today I will tell you why. LOIs are used in

ballot measure 119

BREAKING NEWS: Oregon’s Ballot Measure 119 is Defeated

The Oregon District Court issued a ruling today which “PERMANENTLY ENJOINS AND RESTRAINS” the OLCC and other State actors from enforcing Measure 119 against Bubble’s Hash and Ascend Dispensary, the plaintiffs that sued over BM 119’s constitutionality. You can view Judge Simon’s Opinion and Order here, and the Judgment here. BM 119 required most Oregon

foreign company due diligence

Due Diligence in Cannabis Transactions: Mechanics and Red Flags

I don’t know how it came to be, exactly, but I’ve spent countless hours of my adult working life aiding due diligence on cannabis transactions. These transactions involve all kinds of companies, from sole proprietorships to public companies, and a variety of deals–from leasing, to financing, to good old M&A. Today, I’ll cover how diligence

ballot measure 119

Oregon’s Ballot Measure 119: Time’s Almost Up?

Hopefully this is the penultimate time I’ll write about Ballot Measure 119. Hopefully, some three weeks from now, I’ll publish one last post explaining that this landgrab initiative was annihilated, judicially speaking. The recent Federal Court hearing On April 29th, Judge Michael H. Simon heard arguments from the UFCW 555 and the Oregon Department of

cannabis business ownership

File Under Bad Ideas: 50/50 Cannabis Business Ownership

There are many ways to set up a cannabis business, and we like to think that we’ve seen them all. But there’s probably no worse category than 50/50 ownership of a business– a recipe for all sorts of disasters. Let’s look and why that is, and some ways to avoid it. What 50/50 ownership means,