R. Alan Peterson

Sioux Falls
Peterson, Alan R.

R. Alan Peterson is a long-time member of Lynn Jackson, and the founding member of the Sioux Falls office.  Although he previously specialized in civil and commercial litigation, workers’ compensation, and employment law, he now limits his practice to serving as general counsel to the two largest rural electric cooperatives in South Dakota, mediating cases, and representing adoptive parents.  

Peterson, Alan R.
Team R. Alan Peterson

A South Dakota native, Alan received his bachelor’s degree from Northern State University, his master’s degree from Northern Illinois University and his law degree, with honors, from the University of South Dakota.  After several years as a teacher, Alan began practicing law with Lynn Jackson in 1987. Alan is also an invaluable mentor to other attorneys at Lynn Jackson.  He is admitted to practice in all state and federal courts in South Dakota.

Alan is an AV-rated attorney and has been recognized in Best Lawyers in America® for Administrative/Regulatory Law, Arbitration, Employment Law, Insurance Litigation, Labor and Employment Litigation, Mediation, Personal Injury Litigation, and Workers’ Compensation Law.  He has also been named a Great Plains Super Lawyer® and recognized by Chambers and Partners for his work in labor and employment law and personal injury litigation.  Alan is a member of the South Dakota Defense Lawyers Association, South Dakota Trial Lawyers Association, and the National Panel for Construction Dispute Resolution Services.  He is a member of the South Dakota, Second Circuit, and American Bar Associations.  Alan is a member of the Sioux Falls Pickleball Association, the Lennox Community Band, and the Augustana Blue and Gold Band, and is a volunteer for the Habitat for Humanity. 

Alan and his wife Marsha have two children.  In his free time, Alan enjoys spending time with family and at the lake, traveling, playing pickleball, and occasionally, playing his trombone.

  • University of South Dakota School of Law, J.D. with honors, 1986
  • Northern Illinois University, M.A., 1975
  • Northern State College, B.S., magna cum laude, 1973
  • Author: “Textbook Loans to Parochial School Students: South Dakota’s Continued Rejection of The Child Benefit Doctrine,” 31 South Dakota Law Review (1986)
  • South Dakota Bar Examiner (2001-2016)
  • State Bar of South Dakota (former Chair, Negligence and Tort Law Committee) (former Chair, Worker’s Compensation Committee)
  • American Bar Association
  • South Dakota Trial Lawyers Association
  • South Dakota Defense Lawyers Association
  • Electric Cooperative Bar Association
  • Chambers USA
  • Best Lawyers in America® (2003-2018)
    • Administrative / Regulatory Law
    • Arbitration
    • Employment Law-Individuals
    • Employment Law-Management
    • Litigation-Insurance
    • Litigation-Labor and Employment
    • Mediation
    • Personal Injury Litigation-Defendants
    • Workers’ Compensation Law-Claimants
    • Workers’ Compensation Law-Employers
  • Best Lawyers in America® “Lawyer of the Year”, Sioux Falls
    • Administrative / Regulatory Law (2018)
    • Litigation-Insurance (2017)
    • Workers’ Compensation Law (2016)
    • Litigation-Labor and Employment (2012)
  • Great Plains Super Lawyers ® (2007-2023)
    • Workers’ Compensation
  • Senior Fellow, Litigation Counsel of America
  • Habitat for Humanity
  • Augustana Student and Community Symphonic Band
  • Lennox Municipal band


Main Office:

110 N. Minnesota Ave. - Suite 400
Sioux Falls, SD 57104
Directions 605-332-5999 - phone 605-332-4249 - fax


  • State of South Dakota
  • United States District Court for the District of South Dakota
  • United States Circuit Court of Appeals for the Eighth Circuit
R. Alan Peterson
Rated by Super Lawyers

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