Vincent Sliwoski, Attorney

"Whatever you can do, or dream you can do, begin it. Boldness has genius, power, and magic in it. Begin it now."
Vincent Sliwoski

Vince is a business lawyer, problem solver and dealmaker. His clients run the gamut from individual investors and entrepreneurs to widely held domestic and international corporations. He is the managing attorney of our Portland office and he was recently again named a “Rising Star” by Super Lawyers Magazine, an honor bestowed on only 2.5% of eligible Oregon attorneys.

Vince pushes for efficient and optimal client results in every transaction. He has particular expertise in business/corporate, commercial real estate and intellectual property law, and he is a leading practitioner in Oregon’s rapidly-evolving cannabis industry. Vince’s analysis and advice is guided by a heightened awareness of all possible outcomes: in his litigating days, he tried cases in four Oregon counties and conducted numerous arbitrations and mediations.

Vince graduated from Lewis and Clark Law School, where he now teaches Cannabis Law & Policy as an adjunct professor (he also publishes our law firm’s award-winning Canna Law Blog). In his student days, Vince was inducted into the Cornelius Honor Society for scholarship, leadership and service. He was also champion of the Phillip C. Jessup International Law Mid-Atlantic Competition and won best U.S. Brief in 2009.

Before practicing law, Vince lived in Japan and worked and traveled extensively throughout Asia, Europe and the Americas— including 2,000 miles by canoe through the Canadian arctic. He is fluent in Spanish and he speaks basic Japanese. While living in New York City, Vince worked with a boutique IT firm supporting Bob Dylan, Lou Reed and other artists.

Vince actively supports Oregon’s creative and non-profit cultures: he serves as general counsel to some of the state’s signature events, including the Pickathon Music Festival and the Waterfront Blues Festival. He is a former columnist for the Portland Mercury and past President of the Hollywood Theatre’s Board of Directors.

On weekends, Vince enjoys exploring the beauty of the Pacific Northwest with his family and friends.

More About Vincent

Speaking Engagements

Moderator Hemp CBD Q&A, Harris Bricken webinar, September 17, 2020.

Drafting Cannabis Contracts, Cannabis Law Institute, September 8, 2020.

Beyond CBD: New Cannabinoids and the 2018 Farm Bill, Harris Bricken webinar, April 29, 2020.

Multi-State Cannabis Operators, Harris Bricken webinar, April 2, 2020.

Coronavirus & Cannabis Q&A, Harris Bricken webinar, March 26, 2020.

The International Cannabis Trade, Harris Bricken webinar, March 4, 2020.

Oregon Hemp: Road Map for Local and National Success, Harris Bricken webinar, October 3, 2019.

Panelist, Cross Border Cannabis Transactions, Geneva Group International (GGI), June 21, 2019.

Program Co-Chair, The Business of Marijuana in Oregon, The Seminar Group, May 17, 2019.

It Could Happen to You: Cannabis Agency Litigation and Enforcement, Harris Bricken webinar, April 23, 2019.

Panelist, Paths to Practice: Landing a Job in the Media and Entertainment Industries, Lewis & Clark Law School, March 21, 2019.

Employment Law for Oregon Cannabis Businesses, Harris Bricken webinar, December 12, 2018.

Program Co-Chair, The Business of Marijuana in Oregon, The Seminar Group, June 7, 2018.

Intellectual Property in the Cannabis Industry, Harris Bricken webinar, May 17, 2018.

Cannabis Litigation, Harris Bricken webinar, January 11, 2018.

Federal Responses to Oregon Marijuana Law. National Business Institute CLE, December 8, 2017.

Oregon Cannabis Law and Naturopathic Doctors, National University of Natural Medicine’s Medical Cannabis Conference, July 29, 2017.

Program Chair, The Business of Marijuana in Oregon, The Seminar Group, June 9, 2017.

The Business of Cannabis: Key Considerations for Advising Industry Clients, American Law Institute Continuing Legal Education, June 7, 2017.

Oregon’s Medical Marijuana Industry: 20 Years Later, Oregon Public Broadcasting Interview, March 23, 2017.

Cannabis and Commercial Real Estate: Navigating a Budding Industry, American Law Institute Continuing Legal Education, February 22, 2017.

Recreational Marijuana Business Law in Oregon, National Business Institute CLE, December 6, 2016.

Civics Conference for Teachers, Classroom Law Project, December 2, 2016.

From Pinot to Pot: The Marijuana Market One Year after Legalization, Oregon Business Magazine Panel Event, October 25, 2016.

Program Chair and Presenter, The Business Marijuana Oregon CLE, The Seminar Group, June 1, 2016.

Oregon Marijuana for Investors, Harris Bricken webinar, May 25, 2016.

Marijuana in Oregon – Law and Policy Panel, Lewis and Clark Law School, October 7, 2015.

Handling Unusual Assets and Dealing with Regulated Industries, Oregon State Bar Debtor Creditor Section Annual CLE, September 19, 2015.

Federal v. State Conflict, Marijuana in Oregon CLE, The Seminar Group, July 8, 2015.

Festivals and Events: Which Legal Entity is Right For You, Oregon Festivals and Events Annual Conference, March 1, 2015.

Music Licensing and Practical Approaches to Working with Music Industry Clients, Oregon State Bar Intellectual Property Section CLE, April 2, 2014.

Practical Pub Talk: Developing and Protecting Your Brand, Farleigh Wada Witt Pub Series, April 9, 2014.


Canna Law Blog, Contributing Writer, 2015 – Present; Managing Editor and Publisher, 2017-Present.

Federal Courts Are Trending Against Cannabis Contracts, Law360, September 24, 2020.

Ask a Pot Lawyer, The Portland Mercury, Featured Columnist, 2015-2018.

Representative Work

Represent borrowers and lenders in equity, debt and hybrid transactions

Represent dozens of buyers and sellers in business mergers and aquisitions

Advise privately held businesses, banks and credit unions on trademark and intellectual property issues

Represent cannabis clients on general business operations, including regulatory compliance, contracts and real property issues

Represent entertainment and music industry clients on performance, licensing, publishing and distribution agreements

Advise business owners on entity selection, liability protection and a wide variety of business agreements

Islands Tanning & MedSpa MC, LLC v. Islands Tanning and Med Spa, Inc.: Represented franchisee in seven-day jury trial, alleging violation of franchise laws, unlawful business trade practices, fraud, breach of contract, interference with business relations, and intentional infliction of emotional distress; successfully prosecuted claims against franchisor and prevailed on all counts.

Stuart L. Bailey and Christalle Anne Ezelle v. Spectrum Construction Pacific LTD: Represented plaintiff homeowner and third party defendant Umpqua Bank. Prevailed on summary judgment, resulting in dismissal of wrongful attempt by contractor to foreclose construction lien.

Alfieri v. Solomon: Wrote briefs to Oregon Court of Appeals and Oregon Supreme Court in pending case, arguing that the mediation confidentiality provisions of ORS 36.220-36.238, do not shield attorneys in legal malpractice actions arising out of an attorney’s conduct at mediation.


Rising Star” lawyer, Super Lawyers (2018-2020)

Cornelius Honor Society

Moot Court Honor Society


Oregon State Bar Association Intellectual Property Section, Executive Committee (2014 – 2016)

Volunteer Activities

Mentor, Oregon State Bar New Lawyer Mentoring Program

Big Brothers Big Sisters Columbia Northwest

Oregon Volunteer Lawyers for the Arts

Hollywood Theatre Board of Directors

Recreational Pursuits

Canoeing, hiking, surfing, snowshoeing, film, photography, literature and travel.


  • Lewis & Clark Law School (J.D.)
  • Minnesota State University (B.A.)

Bar & Court Admissions

  • Oregon State Bar (2010)
  • Multnomah County Bar (2010)
  • U.S. District Court, Oregon (2012)


  • Spanish
  • Basic Japanese