Attorney Kevin Lonergan Accepted Into the American Board of Trial Advocates
  • Personal Injury Motor Vehicle Accidents
  • Product Liability
  • Complex Litigation
  • Personal Injury Litigation

100% of Practice Devoted to Litigation

Civil Trial, National Board Of Trial Advocacy

  • Wisconsin
  • U.S. District Court – Eastern District of Wisconsin
  • U.S. District Court – Western District of Wisconsin

University of Wisconsin – Madison – Law School, Madison, Wisconsin

United States Air Force Academy, Colorado Springs, Colorado

  • Top 10 Super Lawyers in the State of Wisconsin, 2021
  • Top 10 Super Lawyers in the State of Wisconsin, 2020
  • Top 10 Super Lawyers in the State of Wisconsin, 2019
  • Top 50 Super Lawyers in the State of Wisconsin, 2014-present
  • Wisconsin’s Trial Lawyer of the Year, Wisconsin Association for Justice, 2014
  • President’s Award, State Bar of Wisconsin, 2014
  • Best Personal Injury And Product Liability Lawyer in the Fox Cities, Fox Cities Magazine (based upon a survey of lawyers rating other lawyers)
  • Super Lawyers, State wide Magazine, 2005-Present
  • Recipient the highest possible ratings of “Preeminent” for performance and “Very High” in ethical standards By Martindale-Hubbell
  • Top 100 Trial Lawyers in America, National Trial Lawyers Association, 2011-present
  • Recipient of the Pfefferle Volunteer Award, 2012-2013, St. Francis Xavier Catholic School System
  • Holds highest rating of “Superb” by Avvo (rating by former clients)
  • Wisconsin Law Foundation Board of Directors
    President, Past 1st Vice President and Board Member
  • National Board of Trial Advocacy
  • American Board of Trial Advocates
  • State Bar of Wisconsin Public Education Committee
    Past Chairman
  • 2014 National High School Mock Trial Competition
    Chairman of the Executive Committee
  • Wisconsin Academy of Trial Lawyers (now known as Wisconsin Association for Justice)
    Past President, VP, Secretary, Treasurer, and Long-Time Board Member
  • State Bar of Wisconsin Litigation Section
    Past Chairman, after serving as Secretary and Treasurer of Board of Directors
  • Outagamie County Bar Association
    Past President and Long-Time Member
  • Outagamie County, 1988-Present
    Part-Time Court Commissioner
  • American Association for Justice (previously known as American Trial Lawyers Association)
  • National Trial Lawyers Association
  • Attorneys Information Exchange Group


Partner  |  Appleton, Wisconsin
Phone: 920-739-7366 | 800-559-7366
Fax: 920-739-6352

Kevin Lonergan is recognized within the legal community for handling complex litigation matters for clients with catastrophic injuries and for clients who have lost loved ones. Although most cases settle, he has a reputation for trying cases and has had a high percentage of cases where the ultimate jury verdicts far exceeded the insurance companies’ pre-trial offers of settlement. Kevin has handled many million and multi-million dollar cases.

Kevin has been honored to have been recognized as one of the state’s top lawyers by a number of organizations. Kevin was recognized in 2019, 2020 and 2021 as one of the top 10 lawyers in the state of Wisconsin, and has been recognized as one of the top 50 lawyers from 2015 to the present,  in the state-wide magazine Super Lawyers list. He is only one of a few lawyers in the state who have been named to the Super Lawyers list (top 5% of all attorneys in the state) each and every year that the Super Lawyers designations have been recognized. Kevin had the distinct privilege of being named Wisconsin’s “Trial Lawyer of the Year” by the Wisconsin Association for Justice. As of the time of Kevin’s nomination and selection, only 14 other lawyers had received the same honor in the organization’s almost seventy-year history.

Kevin is rated 10 out of 10 by AVVO. He was previously named as the top personal injury and products liability lawyer in the Fox Cities. He has also been rated as one of the top trial lawyers nationally. He is a board-certified civil trial specialist accredited by the National Board of Trial Advocacy and has also received the highest possible national ratings for legal ability and ethics by an international rating service. Kevin has been named a “Fellow” of the Wisconsin Law Foundation, an honor bestowed on only 2-1/2% of all practicing lawyers. He is past president, vice president, and member of the Wisconsin Law Foundation’s Board of Directors. Kevin also is honored to be named as a member of ABOTA (American Board of Trial Advocates), with a national membership of roughly 7,600 lawyers, balanced equally between plaintiff and defense lawyers and judges. ABOTA is an invitation-only organization with highly experienced lawyers who exhibit virtues of civility, integrity, and professionalism.

 Kevin Super Lawyer Top 10  Kevin Super Lawyer Top 50  Kevin Super Lawyer 15 Year  avvo  avvo

Kevin has served as President of Herrling Clark Law Firm. He also was elected and served as the president of the Wisconsin Association for Justice, the most prominent organization of personal injury trial lawyers in the state, after having served as secretary, treasurer, and vice-president. He was elected and served as the president of the Outagamie County Bar Association and was twice elected in statewide elections to the board of the Litigation Section of the State Bar of Wisconsin. Kevin is a former chairperson of that prestigious board. For several years, he was the chair of the State Bar’s Public Education Committee.

He has been a part-time Court Commissioner for Outagamie County since 1988. Kevin has authored numerous articles and has been a frequent lecturer at seminars designed to educate lawyers about the handling of personal injury cases. For more than a decade, he was the host of a TV show called “You and the Law, ” where he interviewed prominent guests and moderated debates, including several debates involving candidates for the Wisconsin Supreme Court.

Kevin has been a regular guest as a personal injury specialist on the local WHBY radio program, and he has been interviewed on Wisconsin Public Radio with regard to protecting the rights of injured people. He has been very active in community-related activities, including radio and TV shows and past board membership for the Juvenile Diabetes Research Foundation, Casa Clare Halfway House, and the Aces/Xavier Foundation. He is also actively involved in his church. Kevin is particularly proud of the twelve years that he spent working with high school students as the Attorney Coach for the Xavier High School Mock Trial Program. For nine of those years, his teams placed in the top five teams within the state, and Xavier earned state championship accolades in 2009, 2011, and 2012. One of those teams placed 7th at the National Competition.

Outside of the practice of law, Kevin enjoys spending time with his wife of over forty years,  their children and their spouses, and their ten grandchildren.  He also exercises regularly and enjoys spending time with family at their cottage. 


Kevin and his team gave us something that the county justice system couldn’t – justice for my son Dylan. Kevin gave us compassion, hope, and understanding. We finally had someone who was going to fight for us. Kevin was very knowledgeable and very professional. He did what we wanted without any pressure. I would recommend Kevin and his team of professionals without a doubt. He was our light in our darkest hour.


Thank you so much to Kevin, Laurel, and the staff at Herrling Clark Law Firm. I worked with them for 3 years after suffering a life-changing accident. They helped me navigate through the insurance process at every step while taking time to thoroughly discuss every question I had, big or small. In the end, I felt I received a fair settlement that reflected the knowledge and experience that Kevin and his staff have. I feel like I am now ready to move on from this tragedy! I highly recommend Kevin Lonergan and Laurel Wirth for any personal injury needs you may have.


My first impression of Kevin Lonergan was confirmed as my case progressed – he is knowledgeable and competent. He provided regular updates so I always knew the status of my case. Succinctly stated, I am pleased with the way Kevin handled my case and how it ultimately settled.


The whole process was as smooth as one could ever hope for. We never had a worry or doubt of what was happening. As pleasant an experience as could hope for in a case like ours. Professional in every way. None better. I HIGHLY recommend this firm.


Kevin had our best interests in mind. He is a highly regarded professional in the Fox Cities. He was complete and thorough and kept us informed throughout the process. Even though we ended up going to trial (a poor decision on the other side’s part), we felt comfortable that we’d have a good outcome — and we did. Kevin and his staff did a terrific job and kept our fears at bay. We felt entirely comfortable with him.


Client Testimonials

Michael James

Brian Duwe