Jeffrey C. O'Brien

Top rated business & corporate attorney in Minneapolis, Minnesota

Chestnut Cambronne PA
Jeffrey C. O'Brien
Chestnut Cambronne PA

Practice Areas: Business & corporate, Real estate, Entertainment & sports; view more

Licensed in Minnesota since: 2000

Education: William Mitchell College of Law

Selected to Super Lawyers: 2013 - 2019, 2023 Selected to Rising Stars: 2008 - 2012
Free Consultation

Chestnut Cambronne PA

100 S Washington Ave
Suite 1700
Minneapolis, MN 55401 Visit website


Jeffrey C. O’Brien serves as a partner at the Chestnut Cambronne PA located in Minneapolis, Minnesota. Focusing his practice on business law, real estate law, estate planning, intellectual property, liquor law and sports law, he has over two decades of experience practicing law. 

In addition to Minnesota, Mr. O’Brien is admitted to practice in the States of Wisconsin, Iowa and South Dakota and before the United States District Court for the District of Minnesota. He is board-certified by the Minnesota State Bar Association as a real property law specialist. 

Using his vast experience and skill for the benefit of his clients, Mr. O’Brien handles all cases in an efficient manner. He communicates well and keeps his clients informed through every stage in their case. He advises real estate investors and developers and also serves as general counsel to many small businesses. 

Graduating cum laude, Mr. O’Brien has a Bachelor of Science degree in manufacturing engineering from the University of St. Thomas. He served as the president of the college Republicans and the Society of Manufacturing Engineers. He earned his doctorate in jurisprudence cum laude from the William Mitchell College of Law.

Mr. O’Brien lectures and writes articles on topics related to business and real estate. He regularly appears as a guest at prominent podcasts and radio shows and also voices the Minnesota Home Talk Legal Minute on 1500 ESPN. Recognized for his legal contributions, he was named on the 40 Under 40 list by the Minneapolis-St. Paul Business Journal.

Mr. O’Brien is an active member of the: 

  • Wisconsin Entertainment Lawyers Association
  • Master Brewers Association of America’s St. Paul/Minneapolis Chapter
  • Minnesota State Bar Association
  • Hennepin County Bar Association
  • State Bar of Wisconsin
  • American Bar Association
  • Minnesota Craft Brewers Guild
  • Minnesota State Bar Association’s Real Property Law Section
  • American Bar Association, Real Property Probate and Trust Law Section

Practice areas

Business/corporate, Real estate: business, Entertainment & sports, Intellectual property

Focus areas

Business formation and planning, Limited liability companies, Contracts, Business organizations, Entertainment, sports & leisure law, Intellectual property law

  • 40% Business/corporate
  • 40% Real estate: business
  • 10% Entertainment & sports
  • 10% Intellectual property

First Admitted: 2000, Minnesota

Professional Webpage:

  • Under the right circumstances, the conversion and domestication provisions of the Revised Act can be powerful tools for practitioners to efficiently and expeditiously position a client's business entity for a significant transaction, more favorable tax treatment, or to strengthen management's position., Change of Domicile Under Wisconsin’s New LLC Law, Law, Business
  • A basic discussion of how the Federal crowdfunding exemption - Regulation CF - works and its uses, Show Me the Money: Equity Crowdfunding Under Regulation CF, Law, Business
Special Licenses/Certifications:
  • MSBA Board Certified Real Property Specialist
Other Outstanding Achievements:
  • Voice of the "Legal Minute" on Minnesota Home Talk (SKOR North AM 1500) since 2014
  • Regular Guest on Justice in the Morning (fka Justice & Drew), Twin Cities News Talk 1130 AM
  • Weekly guest, The BS Show with Bob Sansevere (podcast)
Pro bono/Community Service:
  • Member, Board of Directors, Minnesota Industrial Hemp Association
  • Member, Community Advisory Board, Financial Security Bank
Bar/Professional Activity:
  • Member, Wisconsin State Bar, 2006-Present
  • Member, State Bar of South Dakota, October 2022 - Present
  • South Dakota
  • American Bar Association, Real Property Probate and Trust Law Section
  • Minnesota State Bar Association, Real Property Law Section
  • Hennepin County Bar Association
  • Master Brewers Association of America, St. Paul/Minneapolis Chapter
  • Minnesota Craft Brewers Guild
  • Wisconsin Entertainment Lawyers Association (WELA)
  • United States District Court for the District of Minnesota
  • Iowa
  • Wisconsin
  • Minnesota
  • Member, American Bar Association
  • Member, Iowa State Bar Association, 2021 - Present
  • Member, Board of Directors, State Bar of Wisconsin Non-Resident Lawyers Division (NRLD)
  • Member, Minnesota State Bar Association, 2004-Present
Educational Background:
  • J.D., William Mitchell College of Law (Cum Laude), 2000
  • University of St. Thomas, B.S., 1997
  • , 40 Under Forty, Minneapolis-St. Paul Business Journal, 2014
White Papers:
  • Represented seller in $6.5 million asset sale, 2022
  • Represented personal training/fitness business in $6.6 million equity investment transaction, 2022
  • Represented emerging SaaS company on $2 million equity infusion, 2022
Scholarly Lectures/Writings:
  • Join this panel presentation to learn about the Loveless a/k/a “leafy green” decision, thecritical legal issues involved and their far reaching impact on the Minnesota industrial hempand retail CBD industries, including the potentially significant adverse economic fallout. Youwill also learn about efforts to curtail these impacts via an appeal of Loveless to theMinnesota Supreme Court and potential legislation from attorneys, an author of correctivelegislation, and ab industry CEO., Panelist, The Cold Shoulder of Loveless - turning its back on law abiding industrial hemp and CBD businesses, Minnesota State Bar Association, Agricultural and Rural Law Section, Law, Industrial Hemp, CBD, 2022
  • The 50 Contract Cases Every Lawyer Must Know Inside and Out!; Presented "Determining Intent and Ambiguity in a Contract" and "Capacity Issues" sections, Presenter, The Contract Law 50, Minnesota CLE, Law, 2022
  • An overview of Federal and State securities law with particular focus of Regulation CF and comparisons to Regulation D, Co-Presenter, Financing the New Business – With Special Emphasis on How to Conduct a Crowd Funding Offering Under the New Reg CF Changes, Minnesota CLE: 2022 Business Law Institute, Law, 2022
  • The two major issues that arise after formation are when (1) a small business should really have been a non-profit, and (2) problems a small business runs into with improperly converting to or merging with a different entity. Learn how to properly address both issues and help your client avoid costly mistakes., Presenter, 2 Common Pitfalls with Entity Formation for a Small Business – Non-Profit and Converting or Merging an Entity, Minnesota CLE, Law, 2022
  • For many Minnesotans, there is a desire to keep their cabin “within the family.” For practitioners, there are several tools available to accomplish this objective, and this session will cover some of the more common methods to pass a family cabin down through successive generations., Presenter, Keeping the Cabin in the Family: Tools for Real Estate and Estate Planning Practitioners, Minnnesota CLE, Law, 2022
  • The brewing and distilling industries are rapidly growing, but complex state and federal regulations are ever-present obstacles to startups and established businesses alike. This online seminar will teach you how to help your clients build a solid business; minimize liability; and navigate the licensing, labeling, and tax reporting challenges along the way. You will also learn how to effectively protect your client's intellectual property, avoid legal landmines in advertising, and receive valuable tips for negotiating distribution agreements., Presenter, Brewery and Distillery Law in Kentucky, National Business Institute (NBI), Law, Breweries, 2022
  • Starting an alcoholic beverage business presents the aspiring brewer, distiller, or winemaker with an enormous challenge. From obtaining licenses and permits, to financing facilities and expensive equipment, to navigating complex state and federal rules and regulations, each decision must be made with care. Do you have the information you need to help your clients get their small businesses off the ground? Our experienced faculty will equip you with the tools you need to navigate the most common legal issues alcoholic beverage producers will encounter., Presenter, Distillery, Brewery and Winery Start-Up Toolkit, National Business Institute (NBI), Law, Breweries, Distilleries, 2022
  • Starting a brewery, distillery or winery requires significant capital.  Oftentimes this capital is found through the sale of equity in the business.  This program will explore the history of securities registration and exempt “private offerings” with an emphasis on the recent changes to Regulation CF, the SEC rule governing equity crowdfunding., Presenter, Equity Crowdfunding for Breweries, Distilleries and Wineries, LawPractice CLE, LawPractice CLE, Law, Liquor, 2022
  • This installment in the Contracts Fundamentals A to Z series will focus on contract interpretation issues. Presenters will address: Determining Intent Statute of Frauds Conditions Precedent, Presenter, Contract Fundamentals A to Z: Contract Interpretation, Minnesota CLE, Law, 2021
  • In this installment in the Contract Fundamentals A to Z series, the presenters will address issues that arise in contract formation. Topics addressed include: Offer and Acceptance Consideration Capacity Issues, Presenter, Contract Fundamentals A to Z: Contract Formation, Minnesota CLE, Law, 2021
  • What every estate planner must know about real estate law, including: Transfer on Death Deeds Mechanics of Real Estate Transfers How to Keep the Cabin in the Family Drafting Considerations, Course Co-Chair/Presenter, Real Estate Strategies For Estate Planning & Medical Assistance Practitioners, Minnesota CLE, Law, 2019
  • Represented Minnesota Industrial Hemp Association in co-authoring an amicus curiae brief to the Minnesota Supreme Court together with the Minnesota Cannabis Association in the matter of State v. Loveless; decision pending., 2022
  • Bright Red Group, LLC, et al. v. City of Minneapolis and Jacob Frey, in his official capacity as Mayor of Minneapolis - Court File No. 27-CV-22-867: part of team of lawyers involved with lawsuit against Minneapolis Mayor Jacob Frey on behalf of a coalition of Minneapolis bar and restaurant owners which resulted in Mayor Frey lifting an executive order requiring bars and restaurants to require proof of COVID-19 vaccination or negative test two weeks ahead of schedule.    , 2022
  • Willy McCoys of Albertville, LLC et al. vs Tim Walz et al., 62-CV-21-38:  Part of team of lawyers from the firm involved with suit against Minnesota Governor Tim Walz on behalf of coalition of bar and restaurant owners seeking to lift the Governor's second shutdown of bars and restaurants under his COVID-19 emergency actions; Governor called press conference an hour after being served for two days later and lifted such restrictions., 2021
  • Kicking off the first episode of Insights from the Inside, David Carpentier, co-founder and CEO of Assurely hosts David Duccini, CEO of Silicon Prairie, and Jeffrey O'Brien, attorney at Chestnut Cambronne. Sharing their tips for startups, businesses, and investors in finding success, the three dive into what they hear most from Issuers in the crowdfunding space., Crowdfunding: Small Steps to Achieve Big Results for Businesses and Investors , Law, 2022
  • We discuss Marketing and Personal Branding for Professionals. Minnesota lawyer Jeffrey O'Brien is always up to something. He could be on local radio, practicing real estate, signing a new food & beverage client, or representing a sport legend., Marketing and Branding for Professionals, Law, Marketing, Public Relations, 2019
Industry Groups:
  • Breweries
  • CBD/Hemp/Cannabis
  • Commercial Real Estate
  • Distilleries
  • Startups
  • Wineries

Office location for Jeffrey C. O'Brien

100 S Washington Ave
Suite 1700
Minneapolis, MN 55401

Phone: 612-339-7300


8 Years Super Lawyers
5 Years Rising Stars
  • Super Lawyers: 2013 - 2019, 2023
  • Rising Stars: 2008 - 2012

Certificates and credentials

Attorney resources for Jeffrey C. O'Brien

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