Member Profile: Lon J. Kouri

Lon J. Kouri
May & Johnson, P.C.
6805 South Minnesota Avenue, Suite 100
Sioux Falls, SD 57108
Email: Click for email

Tel: (605) 336-2565
Fax: (605) 336-2604

Lon J. Kouri regularly travels out of state to Colorado, Iowa, Minnesota, Nebraska, New Mexico, North Dakota

ADR Services Include:

Mediation; Arbitration


Calendar Last Updated: 27 Jun 17

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Lon J. Kouri has substantive case experience in the following areas...

ADA Disability
Civil Rights
Contract Disputes
Family Businesses
Health Care
Legal Malpractice
Local Govt./Municipalities
Medical Devices
Medical Malpractice
Nursing Homes
Personal Injury
Premises Liability
Product Liability
Professional Fees
Professional Liability
Professional Malpractice
Professional Negligence
Property Damage
Real Estate
Sexual Harassment
Shareholder Disputes
Wrongful Death



Lon Kouri is a partner at May & Johnson, PC, where he has practiced for over 35 years.  He is trained as a mediator and has been certified by the American Academy of ADR attorneys as a mediator and arbitrator.  He has mediated over 1,200 civil disputes and regularly mediates nearly 250 disputes per year.  He has successfully mediated a wide variety of civil claims, including class action lawsuits, wrongful death actions, catastrophic injury actions, medical malpractice and professional negligence claims, complex multiparty construction claims, commercial and business disputes, including shareholder claims and first party insurance bad faith claims. As part of his neutral practice, Lon also has arbitrated numerous civil claims in various areas including personal injury, medical malpractice, labor contracts and construction disputes. 

In his mediation practice, Mr. Kouri relies on his significant experience in civil litigation.  Prior to focusing on mediation, his practice was devoted to civil litigation, with an emphasis on insurance defense, insurance litigation, and professional liability defense.  His clients included several major insurance companies. Lon is a member of the American Board of Trial Advocates, the International Association of Defense Counsel, and the Defense Research Institute.  He is the past President of the South Dakota Defense Lawyers Association and was honored to serve as the South Dakota Representative to the DRI.

Lon has been listed in Best Lawyers in America in mediation.  He has also been named a Great Plains Super Lawyer, as well as a Litigation Star in Benchmark Litigation.  Mr. Kouri is the Charter South Dakota Member in the National Academy of Distinguished Neutrals.  He is a member of the American Academy of ADR and is the past Chairman of the South Dakota Bar Association Committee on ADR. 


    University of South Dakota School of Law, Vermillion, South Dakota
    Augustana College, With Honors

Memberships & Affiliations

  • Second Judicial Circuit Bar Association, 1990 - 1991 President 
  • State Bar of South Dakota 
  • American Board of Trial Advocates 
  • South Dakota Defense Lawyers Association, 1996 - 1997 President 
  • South Dakota Defense Lawyers Association, 1994 - 2001 Board of Governors 
  • Defense Research Institute, 1999 - 2002 South Dakota Representative 
  • International Association of Defense Counsel 
  • American Academy of ADR Attorneys
  • National Academy of Distinguished Neutrals (Charter Member in South Dakota)


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