Lawrence, Kansas Law Firm


Sarah E. Warner

Sarah Warner - Lawrence, Kansas Attorney

Sarah E. Warner

Sarah has the unique experience of having worked in the highest courts of two different states: Kansas and Michigan. Most notably, immediately after graduating from law school, Sarah served as the chambers counsel for the Honorable Robert E. Davis of the Kansas Supreme Court. During her 3½ years at the Court, Sarah researched and made recommendations to the justices on more than 100 pending cases, ranging in subject matter from first-degree murder to eminent domain to complex civil litigation and class actions. When Justice Davis became Chief Justice of the Kansas Judicial Branch in January 2009, Sarah was given the additional responsibility of coordinating the efforts of the judicial clerks in all Kansas Supreme Court chambers and assisting with the Chief Justice’s interactions with the legislative and executive branches. The skills Sarah developed during her time at the Court prove invaluable in her everyday practice and representation of clients.

Sarah joined Thompson Warner, P.A. in November 2009. Her practice focuses primarily on resolving state and federal constitutional claims; business and contract disputes, including questions of insurance coverage and allegations of bad faith; and disputes relating to eminent domain, land use, and real estate. Sarah has developed a specialty in appellate advocacy, involving not only successfully briefing and litigating appeals, but also conducting practice sessions for other attorneys preparing to argue cases before the Kansas and federal appellate courts.

For the past several years, Sarah has taught Conflict of Laws as an adjunct professor at Washburn University School of Law in Topeka. The course, which is increasingly critical in our interconnected society, examines the legal and policy considerations that arise in cases where more than one jurisdiction has an interest in ongoing litigation (whether it be multiple states or a conflict between federal and state interests), how these considerations affect a court’s power to hear the case, and when and how judgments from one state can be recognized in another. In the spring of 2017, Sarah began teaching Appellate Practice and Procedure at Washburn, a course that focuses on the procedural, jurisdictional, and strategic decisions involved in successfully litigating appeals. She has agreed to teach that course every spring at the law school.

Sarah serves as one of the original members of the University of Kansas Honors Program Alumni Advisory Board. She also loves singing and volunteers as a cantor and director of the folk group at Holy Trinity Catholic Church in Lenexa. Sarah enjoys outdoor activities and is on the Life Time Lenexa Triathlon Team, having completed her first Half Ironman competition in July 2017.


  • University of Kansas, B.A. in French, International Studies, Mathematics, and Political Science, with honors and distinction, 2003
  • Ave Maria School of Law, J.D. magna cum laude, 2006
    • Received the Mary Queen of Lawyers Award, awarded by the faculty to the most outstanding law school graduate based on grades, coursework, and personal character
    • Editor of the Ave Maria Law Review, 2004-2006
    • St. Thomas More Scholarship Recipient, based on grades and LSAT score in the top 1% of test scores across the United States

Bar Admissions

  • Kansas
  • Missouri
  • U.S. District Court, District of Kansas
  • Supreme Court of the United States
Sarah Warner - Lawrence, Kansas Attorney

Professional Affiliations

  • Kansas Bar Association
    • President, 2018-Present
    • Board of Governors (District 2), 2015-2018
    • Appellate Section, President 2016-Present
    • Annual Survey of Law Editor, 2016-Present
    • Board of Publishers, 2015-Present
    • Statewide Young Lawyers Section President, 2014-2015
  • Kansas Board for Discipline of Attorneys, 2014-Present
  • Kansas Association of Defense Counsel
    • President, 2016-2017
    • Officer, 2013-2016
    • Board of Directors, 2011-Present
    • Previous Editor of The Kansas Defense Journal
  • Defense Research Institute
  • Judge Hugh Means Inn of Court
  • Missouri Bar Association
  • Douglas County Bar Association
    • President, 2015-2016
    • Board of Trustees, 2016-Present
  • Michael J. Malone Douglas County Law Library Board of Trustees
    • President, 2017-Present
    • Elected Board Member, 2013-Present

Civic Involvement

  • University of Kansas Honors Program Alumni Advisory Board
  • Holy Trinity Catholic Church, cantor and director of the parish folk group
  • Life Time Lenexa Triathlon Team

Sample Publications & Presentations

  • The Continued Need for Safeguards in the Kansas Class Certification Procedure: An Overview of Critchfield Physical Therapy v. The Taranto Group, Kansas Defense Journal (Winter 2010).
  • Evolving Standards: A Look at the Modern Abuse of Discretion Standard of Review, Journal of the KBA Appellate Section (Spring 2011).
  • A Brave New World: Class-Action Certifications after Critchfield Physical Therapy v. The Taranto Group, Kansas Defense Journal (Fall 2011).
  • Caps Recap: What We Know (and What We Don’t) from Miller v. Johnson, Kansas Defense Journal (Summer/Fall 2012).
  • The “Kansas Analysis”: Constitutional Challenges to Statutory Caps on Noneconomic Damages, For the Defense (August 2013).
  • Top Ten Kansas Civil Cases of the Year, presented to the Douglas County Bar each year since 2012.
  • Kansas Case Law Update, co-presented at the KADC Annual Meeting each year since December 2011.
  • View from the Panel: The Disciplinary Process and Current Issues Before the Board for Discipline of Attorneys, presented throughout the state to various bar associations.