Serving Southern Minnesota Since 1972

Group photo of the Klampe Law Firm team

Mark W. Delehanty

  • Counsel

Practice Areas:

  • Personal Injury
  • Mediation / Arbitration
  • Employment Law
  • Professional Employment Contract Review

Mark Delehanty, a Counsel at Klampe Law Firm, joined the firm in 1994. He has wide legal experience and is fluent in Spanish. For over twenty-five years, his practice focus is representing injured people and their families in all types of personal injury cases including auto accidents, product liability and wrongful death. Mark is skilled in litigating business and employment disputes. He advises clients on employment contracts and professional compensation and benefit packages. He serves as both a mediator and an arbitrator for fellow attorneys to assist in resolution of disputed civil cases.

Mark grew up in Minneapolis, Minnesota, and graduated from De LaSalle High School. He worked from 1976 to 1980 in California, with Cesar Chavez and the United Farm Workers. He is a 1983 graduate of St. John's University. Before law school, he spent a year living in Peru volunteering with an impoverished Catholic parish. While in law school, Mark was a legal writing instructor and a director of the Civil Rights Moot Court program. He served a two-year clerkship with Judge Diane E. Murphy of the U.S. Federal District Court in Minneapolis, Minnesota. He entered private practice with the firm of Leonard, Street and Deinard, where he practiced for six years before relocating to the Rochester area.


  • University of Minnesota Law School, Minneapolis, Minnesota
    • Juris Doctor
    • Honors: With Honors
  • St John's University, Collegeville, Minnesota
    • B.S.
    • Honors: With Honors
    • Major: Government and Theology

Bar Admission

  • Minnesota, 1987
  • Wisconsin, 2014
  • U.S. District Court District of Minnesota, 1988


  • Martindale Hubble "A-V Rated Attorney" - The highest ranking for legal ability and ethical practices
  • Legal Assistance of Olmsted County “Volunteer of the Year”
  • "Super Lawyer" - A recognition given to fewer than 5% of Minnesota Attorneys
  • North Star Attorney

Pro-Bono Activities

  • Haverhill Township Zoning and Planning Board, Present


  • English
  • Spanish

Professional Associations

  • Minnesota State Bar Association
  • Wisconsin State Bar Association
  • Southern Minnesota Regional Legal Services, Former Board Member, 1998 to 2018
  • Board of Lawyers Professional Responsibility, Third District Ethics Committee, Past Member

Certified Legal Specialties

  • Civil Trial Specialist, Certified by MN State Bar Association
  • Civil Mediator and Arbitrator