• Founding Partner
  • Family Law

Born and raised on the prairie of Western Minnesota, Jason spent his summers on his uncle's farm, which taught him the importance of getting the job done right the first time.

While still a high school student, Jason enlisted in the Army Reserve and went on to serve as an Army Intelligence Analyst after graduation. Then he pursued his education at Concordia College in Moorhead, Minnesota, becoming a High School social studies teacher in White Bear Lake, Minnesota. During this time, he realized his deep-rooted desire to help others resolve their problems, which led him to follow his dream to become a lawyer. In 2000, Jason graduated from Hamline University School of Law in St. Paul, Minnesota.

After gaining valuable experience at the Dakota County Attorney's Office, Jason realized the crucial need for personalized attention and genuine empathy in the legal profession. This understanding motivated him to take up a position in the private sector. After nearly a decade of service with a top-tier boutique trial firm in southern Minnesota, he decided to help clients a little differently and opened his own firm in 2008. Since its inception, Kohlmeyer Hagen has evolved into one of the busiest and largest family and criminal defense firms in southern Minnesota.

Jason has been a prominent speaker at international conferences, sharing his insights on family law issues with the American Bar Association, MN State bar Association, MN Continuing legal Education and the American Association of Justice. Since 2010, he has dedicated his practice exclusively to Family Law, helping clients navigate through challenges related to divorce, spousal support, child custody, and farm and business divorces.

Since 2000, Jason calls Mankato home, where he lives with his wife and children. An avid adventure motorcyclist, Jason has tackled adventures across the Himalayas on a Royal Enfield, through the northern highlands of Vietnam, and the Greek Isles on a Yamaha, as well as the Rockies and the Great Plains. addition to his legal career and motorcycle adventures, Jason has penned his first book titled "The Divorce Survival Guide: Getting Divorced in Minnesota", available in print and Kindle edition on Amazon.com

  • Hamline University School of Law, St. Paul, Minnesota
    • J.D. - 06/2000
    • Honors: Giles Rich Moot Court Participant
    • Honors: 1999 SBA Scholarship Recipient
  • Concordia College, Moorhead, Minnesota
    • B.A. - 1995
    • Major: Education
    • Major: Political Science
  • Minnesota, 2000
  • U.S. Supreme Court, 2004
  • U.S. Court of Appeals 8th Circuit, 2002
  • American Bar Association-Young Lawyer Division Family Law Committee, Chair, 2003 to 2004
  • Minnesota State Bar Association-New Lawyer Section, Vice-Chair, 2003 to 2004
  • MN State Bar Court Rules Committee, Member, 2001 to 2004
  • 6th District New Lawyer Section Affiliate, Founding Chair, 2002
  • 6th District Bar Association, President-Elect, 2003 to 2004
  • Minnesota Association for Justice, Member
  • American Bar Association, Member
  • 6th District Bar Association, President, 2004 to 2005
  • State v. Wilking, 2002, Minnesota Court of Appeals
  • Yocum v. Yocum, 2003, Minnesota Court of Appeals, WL 3779223
  • State v. Kesselring, 2003, Minnesota Court of Appeals
  • Bertrand v. Krenz, 2013, MN Court of Appeals, WL 3779223
  • Backman v. Backman, 2023, MN Court of Appeals, WL 3161220
  • Hage v. Hage, 2012, MN Court of Appeals, WL 3641015
  • In re Welfare of M.A.H., 2013, MN Court of Appeals, WL 6050467
  • One of Ten Up and Coming Attorneys by Minnesota Lawyer, 2002 - 2003
  • Rising Star by Law and Politics Magazine, , 2003 - 2011
  • Listed in Who's Who in Minnesota Family Law, 2003
  • American Bar Association's Silver Key, 2000
  • Family Law Institute, St. Paul, Minnesota, 2003 to 2017
  • Family Law Institute, St. Paul, Minnesota, 2020
  • New Lawyer Experience, Minneapolis, Minnesota, 2005 to 2015
  • Solo Small Firm Conference, Duluth, Minnesota, 2011 to 2019
  • AAJ Annual Meeting, Boston, Massachusetts, 2004
  • AAJ Annual Meeting, Toronto, Ontario, 2005
  • ABA Annual Family Law Meeting, San Diego, California, 2007
  • ABA Mid-Year Meeting, Chicago, Illinois, 2006
  • Mid-Year Meeting, Salt Lake City, Utah, 2004
  • Mid-Year Meeting, Nashville, Tennessee, 2003
  • American Bar Foundation, Member
  • American Inns of Court, Member
  • American Association for Justice, Criminal Law Section, Member, 2005 to 2006
  • Dakota County Attorneys Office, Clerk, 1998 to 2000
  • Army Reserve, Army Intelligence Analyst
  • Family Law
  • A Brief Summary of MN DWI Law, Minnesota Trial Lawyer's Magazine, 2002
  • Winning Criminal Defense Tips, ABA GP Solo New Lawyer, V. 1, No. 4 September, 2003
  • After the Trial, American Association For Justice, 2005
  • Making the Uncivil Divorce Civil, MN State Bar Association, 2006
  • “The Divorce Survival Guide: Getting Divorced in Minnesota”
  • Phi Alpha Delta