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About me

Seymour Mansfield, a founding shareholder of Mansfield Tanick & Cohen, P.A., has 40 years of diverse legal experience, and is licensed to practice in Minnesota and Illinois, the U.S. Supreme Court, various federal district and appeals courts. He now focuses on:

  •  business and complex litigation,

  • mediation,

  • employment and employee benefits law, including sex harassment, sex and race discrimination, and non-compete issues,

  • trade secrets and unfair business practices, and

  • international business transactions and disputes.


For the past two decades, Mr. Mansfield has been selected as a Minnesota "Super Lawyer" and among the Top 40 Super Lawyers in the area of Labor and Employment Law, and over the years, as a "Super Lawyer" and "Leading Lawyer" in the area of Commercial Litigation.


He is the Firm's primary representative to Lawyers Associated Worldwide (LAW), a commercial association of over 109 independent commercial law firms located in 59 countries and 148 key cities, comprising over 3500 lawyers worldwide. He served on LAW's governing board from 2002 through 2008. Mr. Mansfield frequently lectures and writes on business law and litigation-related topics.


Charitable Leadership

Active in volunteering, pro bono legal services, philanthropy and other ways of giving back to the community, he was recognized as 2009 Honoree of The Fund for the Legal Aid Society (Fund) at its Law Day Testimonial Dinner for his life time achievements in supporting legal services and the pursuit of social and economic justice for the disadvantaged.

He and his wife, Susan, were honored at the 2007 World Premiere of the Basilica of St. Mary's Holocaust Memorial Oratorio.

Mr. Mansfield was a co-founder and serves on the Board and Executive Committee of The Fund; the Boards of Jewish Community Action and the Albert and Anne Mansfield Foundation. For more about Mr. Mansfield's community involvement, see


Family; Hobbies:

Mr. Mansfield resides in southwest Minneapolis with Susan, his wife of over 40 years. He has three grown children, Alexis and Justin, and Steven, and enjoys scuba diving, underwater photography, ping-pong, tennis, biking and fitness training.


Practice areas


  1. Employment & Labor: 30%
  2. Business: 20%
  3. Litigation: 20%
  4. Employee Benefits: 10%
  5. Other: 20%
  6. More 



Hourly ($365-465/hour), contingent (15-45%), Fixed (sometimes), Retainer (sometimes)

Payment types:

Cash, Check, Credit card

Attorney endorsements

1 total 

Are you an attorney? Endorse this lawyer

  • Kenneth Lee LaBore

    I endorse this lawyer. Mr. Mansfield is a well respected attorney in Minnesota


    Kenneth LaBore Nursing Home Abuse and Neglect Attorney
    Relationship: Fellow lawyer in community

Contact info

Mansfield, Tanick and Cohen, P.A.

1700 U.S. Bank Plaza South
220 South Sixth Street
Minneapolis, MN, 55402

1700 U.S. Bank Plaza
220 South Sixth Street
Minneapolis, MN, 554021409

1700 U.S. Bank Plaza South 220 South Sixth Street
Minneapolis, MN, 55402-4502



MNAuthorized to practice197807/31/2015
ILActive And Authorized To Practice Law196911/12/2015
We have not found any instances of professional misconduct for this lawyer.
Avvo contributions
Legal answers
Award nameGrantorDate granted
Leading LawyerMinnesota Guidebook of Leading Attorneys1999
Leading LawyerMinnesota Guidebook of Leading Attorneys1998
Leading LawyerMinnesota Guidebook of Leading Attorneys1997
Leading LawyerMinnesota Guidebook of Leading Attorneys1996
Leading LawyerMinnesota Guidebook of Leading Attorneys1995
Leading LawyerMinnesota Guidebook of Leading Attorneys1994
Work experience
TitleCompany nameDuration
Founding Partner, Officer & DirectorMansfield Tanick & Cohen, P.A.1989 - Present
Association namePosition nameDuration
American Bar Association, Advisory PanelMember2007 - Present
Hennepin County Bar AssociationBoard of Governors1997 - Present
Minnesota State Bar Association FoundationPresident1997 - 1998
American Bar Association, House of DelegatesMember1997 - Present
Network of Leading LawyersMember1996 - 2005
Minnesota State Bar Association FoundationBoard Member1994 - Present
Hennepin County Bar AssociationBoard of Governors1988 - 1994
National Employment Lawyers AssociationMemberN/A
Publication nameTitleDate
US China Business Connections Slide ShowChina Employment Law Developments2009
Super Lawyer--Corporate CounselDont Mess Around with the Foreign Corrupt Practices Act2009
FootnoteThe IRS Wins a Battle But Not the War2003
Successful Trade Secret and Enforcement StrategiesUnderstanding the Nature and Protection of Trade Secrets and Their Interplay with Confidentiality Agreements, Noncompete Covenants, and Related Federal and State Law1998
Minnesota Institute of Legal EducationNoncompetes and Trade Secrets: Protecting Personnel and Ideas in a High Tech Society1998
Financial Institution LawView from the Plaintiffs' Bar: Is the Consumer Class Worth Bringing?: A Current Review of Common Creditor Errors1998
Business Law InstituteTaking the Credit but None of the Blame: A Primer on Interest Limits for Businesses Extending Credit1996
Minnesota Trial Lawyers AssociationDefamation1995
Employment Law HandbookDefamation1994
Resource ReportsLimited Liability Companies - The Best of Both Worlds1992
School nameMajorDegreeGraduated
DePaul University College of LawLawJD - Juris Doctor1969
University of Illinois, Urbana-ChampaignSociologyBS - Bachelor of Science1966
Speaking engagements
Conference nameTitleDate
Financial Institution Law, Minnesota Institute of Legal EducationView From the Plaintiffs' Bar: Is the Consumer Class Worth Bringing? A Current Review of Common Creditor Errors1998
3rd Annual Law & Technology ShowNoncompetes and Trade Secrets: Protecting Personnel and Ideas in a High-Tech Society1998
Minnesota CLE, Business Law InstituteTaking the Credit, but None of the Liability--Avoiding Pitfalls in Extending Credit to Customers1996
MILECrafting Employment and Severance Contracts1996
Minnesota Institute of Legal EducationLitigation Update1995
Minnesota CPA Society MEGA ConferenceHow to Help Your Client When the I-Team Comes Calling - Media Crisis Management for CPSS1995
Buying-Selling-MergingLitigation Update1995