Brian Dillon

"Brian Dillon is a brilliant lawyer. He is able to articulate complicated legal issues in plain English and move decisively on litigation strategy in the courtroom. He works collaboratively with his colleagues, is responsive, and has an uncanny, empathic ability to meet the client where he/she is." Christine Warren, Founder and President of Oxygen Plus.

Brian Dillon is the Partner in Charge of the Minneapolis office for Lathrop GPM. Brian is an experienced litigator who specializes in trusts and estates litigation, complex business and shareholder disputes, and responding to government investigations and enforcement actions.  Clients value Brian’s diverse range of litigation experience and practical, down-to-earth approach in resolving disputes, both in and outside the courtroom.

In the trusts and estates area, Brian represents professional fiduciaries, individuals, families, and other interested parties involved in disputes over the validity or interpretation of wills, trusts, and other testamentary vehicles, as well as contested matters involving guardianships, conservatorships, and the rights of vulnerable adults.  In this area, Brian works collaboratively with other subject matter experts in Lathrop GPM’s Trusts, Estates and Legacy Planning group.  Brian is also licensed to practice in U.S. Tax Court and helps to ensure his clients’ interests are protected in disputes with state and federal regulators over estate taxes.

In the area of complex business and shareholder disputes, Brian focuses on resolving disputes among the owners of closely held and family-owned businesses.  He regularly advises clients in disputes over corporate governance, business succession, the rights of minority owners, and the appropriate use of corporate funds. Brian has extensive experience prosecuting and defending cases involving claims of fraud, embezzlement, unfair competition, and breach of fiduciary duty. His clients in this area come from a wide array of industries and include product manufacturers, financial service companies, IT service providers, software developers, health care companies, government contractors, and real estate developers.

In the administrative and regulatory context, Brian helps clients conduct internal investigations and respond to external ones triggered by government actors and whistleblowers.  He defends clients who are subject to government enforcement and licensing actions, and he helps clients develop and implement effective compliance programs. Brian also special expertise in state and federal campaign finance laws and is regularly called upon to advise nonprofit advocacy organizations on compliance issues in this area

Before joining the firm, Brian served as an assistant attorney general in the Minnesota Attorney General’s Office, where he prosecuted cases under Minnesota’s consumer protection, financial services, health and antitrust laws.

As the Partner in Charge of Lathrop GPM’s Minneapolis office, Brian proudly represents the firm on the boards of Twin Cities Diversity in Practice and The Fund for Legal Aid.  Brian is also a member of the Diversity and Inclusion Committee of the Minnesota State Bar Association’s Probate, Trusts and Estates Section. 

Representative Experience

Trusts and Estates Litigation

  • Represented heir of the Prince estate in initial stages of estate proceedings, securing appointment of special administrator and facilitating development of initial plans to secure and monetize estate assets
  • Represented beneficiaries in contested trust proceedings involving six-day court trial, securing order invalidating certain estate planning instruments on grounds of undue influence and unconscionability
  • Represented QTIP trust beneficiary in contested trust proceedings seeking appointment of special fiduciary and order directing trustee to make assets productive of income
  • Represented trust beneficiaries in contested trustee removal proceedings, securing emergency removal of trustee and order freezing trustee’s personal accounts and assets pending development of surcharge claims
  • Represented trust beneficiary and vulnerable adult in contested action to invalidate trust disclaimer on grounds of undue influence and lack of capacity, securing temporary restraining order freezing disputed assets in possession or control of trustee and paving way to favorable settlement
  • Represented daughter of a decedent in a successful will contest, resulting in favorable settlement after establishing through extrinsic evidence that the will did not reflect the true intent of the decedent.
  • Represented personal representative of an estate in petition for redetermination of deficiencies in federal estate tax involving disputes over transfers during life, debts of the decedent, and expenses and property not subject to tax, resulting in favorable settlement.
  • Represented estate of decedent in an action against the decedent’s former business partner in action to enforce contractual rights between the parties and for breach of fiduciary duty.

Complex Business Litigation and Shareholder Disputes

  • Represented corporate owner of ethanol facility in case brought by former minority owners asserting claims related to a squeeze out merger, including six-day court-trial on valuation issues
  • Represented former directors and officers of defunct insurance company against breach of fiduciary duty and related claims brought by company’s court-appointed liquidator
  • Represented publicly traded agricultural company and minority owner of joint venture in international arbitration involving claims of breach of fiduciary duty and member control agreement
  • Represented majority owners of a product manufacturer in dispute among shareholders involving claims of minority shareholder oppression and breach of fiduciary duty, culminating in a six-day jury trial that reconsolidated ownership of the manufacturing entity in its majority owners.
  • Represented majority owner of commercial cleaning service business in defense of breach of fiduciary claims asserted by minority owner, ultimately securing buyout on favorable terms
  • Represented majority owners of a grain elevator company in dispute among shareholders involving claims of fraud, embezzlement, minority shareholder oppression, and breach of fiduciary duty that ultimately reconsolidated of ownership of the entity in its majority owners. 
  • Represented a radio broadcasting company in a civil fraud and embezzlement action against former bookkeeper, resulting in a favorable judgment of $1.5 million and an additional restitution order in connection with a related criminal action. 
  • Represented court-appointed receiver of companies used to operate a Ponzi-scheme in an effort to obtain relief for defrauded investors, asserting claims primarily under the Uniform Fraudulent Transfer Act. 
  • Represented franchisor in dispute with franchisee involving alleging wrongful termination of franchise agreement between the parties and violation of the Minnesota Franchise Act, culminating in three-day arbitration.

Administrative and Regulatory Defense

  • Represented government and nongovernment entities in complex litigation and investigations involving alleged violations of the False Claims Act, state and federal health care regulations, false advertising and fair trade practice regulations, government contracting regulations, and campaign finance regulations
  • Represented publicly traded money transmitter in response to contested case proceeding brought by Minnesota Department of Commerce
  • Represented nonprofit corporation in appeal of a Minnesota State Arts Board’s decision to deny grant funding, resulting in a favorable judgment of $875,000
  • Represented board of directors of a large insurance company in an internal investigation over a troubled development project, conducting numerous witness interviews and overseeing the review of some 1.2 million emails over a two-month period.
  • Represented non-profit political advocacy organizations in cases involving claims under Minnesota’s Fair Campaign Practices Act.
  • Represented a medical imaging company in a civil dispute alleging Stark and Anti-Kickback violations
  • Represented financial services company in responding to numerous investigations by the Minnesota Department of Commerce and Attorney General’s Office. 
  • Represented general contractor in responding to numerous investigations by the Minnesota Department of Labor and Industry
  • Represented bullion coin dealer in responding to numerous investigations by the Minnesota Department of Commerce.

Pro Bono Matters

  • Representing Common Cause Minnesota, and Voices for Racial Justice in Minnesota’s special judicial redistricting proceedings, advocating for the rights and interests of Minnesotans of color.  Presented oral argument before five-judge Special Redistricting Panel on January 4, 2022, the final public step in a series of hearings held to gather input on redistricting and defend proposed maps intended to give Minnesota’s growing minority communities the most influential and impactful voice on voting district boundaries.
  • Volunteer attorney for the Minnesota Advocates, obtaining grants of asylum for African immigrants on the grounds of political, gender, and social group persecution
  • Volunteer attorney for the Children’s Law Center, representing children in CHIPS (Child in Need of Protection or Services) and related proceedings.
  • Volunteer attorney for the Volunteer Lawyers Network, regularly staffing the self-help center at the Hennepin County Government Center.


  • Co-presenter, "What to Do with a Bad Personal Representative or Trustee: Assessing the Tools in Your Legal Toolbox," Minnesota CLE 2024 Probate and Trust Law Section Conference, June 10, 2024
  • Presenter, "Contesting a Will: Estate of Reay, Estate of Wilson, and more!" Minnesota CLE | The Estate Planning, Probate & Trust Law 50, September 21, 2023
  • Co-presenter, "Inside the New Uniform Electronic Wills Act," Minnesota CLE 2023 Probate and Trust Law Section Conference, June 13, 2023
  • Co-presenter, "Minnesota's New Electronic Wills Act," Minnesota CLE Webinar, April 21, 2023
  • Podcast Guest, "Celebrity Estates: Lisa Marie Presley and Estate Litigation," Wealth Management Celebrity Estates: Wills of the Rich and Famous, April 17, 2023
  • Panelist, "Second Quarter: Courts and Juries in 2023 and Beyond," Lathrop GPM 2023 State of Litigation: Draft Edition, April 12, 2023
  • Co-presenter, "Lessons Learned from Celebrity Contested Estates," Minnesota CLE Estate Planning Webcast, October 26, 2022
  • Panelist, "Evidentiary Issues Unique to Trusts and Estates Litigation," 2022 Probate & Trust Law Section Conference, June 14, 2022
  • Presenter, "Effective Direct and Redirect Examinations," Minnesota CLE, Litigating Probate and Trust Disputes, March 29, 2022
  • Co-presenter, "Commencing a Case in 2021: Pleadings, Initial Hearings, and Scheduling During COVID and Beyond," Minnesota CLE, Litigating Probate and Trust Disputes, March 18, 2021
  • Co-presenter, "On the Edges of Capacity: Implications for Estate Planning," Minnesota CLE, Probate & Trust Webcast Series, January 27, 2021; Minnesota State Bar Association Probate & Trust Law Section Conference, October 16, 2020
  • Co-presenter, "Can’t We All Just Get Along? The Role of Business Succession Planning for Closely Held Companies," Minnesota State Bar Association Probate and Trust Law Conference, June 27, 2019
  • Presenter, "Avoiding Shareholder Disputes Through Succession Planning," St. Cloud Corporate Counsel Breakfast Briefing, June 2019
  • Co-presenter, "Contesting a Will," Minnesota CLE, Estate Planning, Probate and Trust Law 50, February 21, 2020; September 24, 2014
  • Presenter, "The Federal Trade Commission Act & Privacy Protections," Minnesota CLE Legal Guide to Privacy and Data Security, August 18, 2014
  • Presenter, "The Litigator’s Duty of Technical Competence: Predictive Coding – Ethics, Adoption, and Defensibility," May 14, 2014
  • Panelist, "Responding to Government Investigations: A Practical Anatomy," GPM White Collar Roundtable, October 30, 2012
  • Panelist, "An Insider’s View of Health Care Fraud Enforcement: What’s on the Radar of State and Federal Agencies and Private Litigants," GPM 16th Annual Health Law Conference, July 1, 2012
  • Panelist, "Priorities at the U.S. Attorney’s Office Under the New Administration – A Conversation with New U.S. Attorney B. Todd Jones," September 1, 2009


Client Alerts and Blog Posts

News Releases

Professional Affiliations

  • Minnesota State Bar Association
  • Wisconsin State Bar Association
  • Federal Bar Association
  • American Bar Association
  • Hennepin County Bar Association
  • Judicial intern, Wisconsin Supreme Court

Community Involvement

  • Twin Cities Diversity in Practice, board member
  • The Fund for Legal Aid, board member
  • Diversity and Inclusion Committee of the Minnesota State Bar Association's Probate, Trusts and Estates Section, member
  • Minnesota Loan Repayment Assistance Program (LRAP), board member, former board president
  • The Advocates for Human Rights, volunteer attorney
  • Minnesota Diversity In Practice, volunteer attorney mentor
  • Dane County Court Appointed Special Advocates (CASA), former board president


  • Selected among The Best Lawyers in America®, 2024
  • Chambers USA: America’s Leading Lawyers for Business, Minnesota Litigation: General Commercial, 2022-2024
  • Minnesota State Bar Association, "North Star Lawyers," 2015, 2018, 2021-2023
  • Hennepin County Bar Association, Excellence Award for Providing Pro Bono Services, 2022
  • Thomson Reuters, "Minnesota Super Lawyer®," 2016-2023
    • "Minnesota Rising Star," 2012-2013
  • Minnesota Monthly, "Minnesota's Top Lawyers," 2022
Photo of Brian  Dillon
  • Minneapolis

    80 South Eighth Street
    3100 IDS Center
    Minneapolis, MN 55402
F: 612.632.4313


Kristina Procai

Court Memberships

  • Minnesota
  • Wisconsin
  • U.S. District Court District of Minnesota
  • U.S. District Court District of Wisconsin
  • U.S. Tax Court


University of Wisconsin Law School, J.D., with honors

University of Notre Dame, B.A., with honors, Economics and Environmental Science

  • Phi Beta Kappa