Karlin, Fleisher & Falkenberg, LLC > Attorneys > Jonathan B. Fleisher

Jonathan B. Fleisher

Biography

Jonathan B. Fleisher is a Partner at Karlin, Fleisher & Falkenberg, LLC, where he has practiced personal injury law since 1995. A Chicago native, Fleisher is dedicated to helping individuals and families who have suffered serious injuries due to the negligence of others. His practice focuses on securing meaningful compensation for clients facing the challenges of medical malpractice, nursing home abuse and neglect, premises liability, and automobile accidents.

Fleisher brings a thorough and strategic approach to each case, whether through skilled negotiation in arbitrations and mediations or aggressive advocacy in the courtroom. His commitment to his clients is reflected in his consistent ability to secure significant verdicts and settlements, with numerous cases resolved in excess of $1,000,000. As Managing Partner of the firm, he continues the tradition of excellence that Karlin, Fleisher & Falkenberg, LLC has maintained since 1970.

Educational Background

Graduate Education
- Juris Doctor (Law) degree — DePaul University, 1995
Undergraduate Education
- Graduated Cum Laude with a Bachelor of Science in Speech Communications — Syracuse University, 1992

Professional Associations

Illinois Trial Lawyers Association (ITLA), Board of Managers
American Association of Justice
Multi-Million Dollar Advocates Forum

Courts Admitted

United States District Court Northern District of Illinois
Illinois State Court

Practice Areas

Case Victories

Class Action Case Involvement
- Participated as a plaintiff trustee in the matter of a federal class action challenging insurance policy terms and insurer conduct
Numerous Settlements and Verdicts Exceeding $1,000,000
- Fleisher has resolved many cases in his core practice areas with settlements and verdicts of more than $1,000,000 for seriously injured clients, including medical malpractice and nursing home litigation

Email: jbf@kff-law.com
Telephone: 312-346-8620
Fax: (312) 346-8743

Written by Karlin, Fleisher & Falkenberg, LLC Last Updated : November 4, 2025

Practice Areas

TESTIMONIALS

I was involved in a car accident and was referred to this office. Nick Drury was the attorney who handled my case and he was nothing short of phenomenal. Personable, professional, took the time and answered my questions, accessible, very responsive via email. He also advised as to what would be in my best interest and negotiated very well on my behalf. What was an additional plus is he resolved my case promptly. Thank you Nick- I highly recommend him for anyone who is need of a personal injury attorney!

- Oralia Castaneda

★★★★★

Jonathan was amazing. He communicated very well, he was always looking out for my best interest. He was easy to talk to and very thorough with my case and I was elated and blessed to have a lawyer such as Jonathan by my side. I would highly recommend him! Even after the case was settled he still contacted me to follow up and check it with me. He is someone who really cares about his clients and treated me as a person not just a case #. Thank you for everything Jonathan!

- Keena

★★★★★

It was not only comforting to have skilled, knowledgeable and experienced attorneys and staff during one of the most difficult times of my life, but to be supported by people who had my best interest at heart and genuinely cared about me and my personal feelings made all the difference in the world. I walked in as a client and was cared for by a family, and for that I’ll be forever grateful! H. B.

- H.B.

★★★★★

Dear J.B. , I wanted to thank you, for the job you did on my case. You were not only an excellent lawyer, you were a friend along the way as well. You always promptly called me, addressing my questions and concerns. As far as my settlement goes, I couldn’t have expected more then you got for me. Many lawyers “brag” , about the amount of settlements they get for their clients, on their T.V. commercials . You, got me more then these lawyers “brag” about. Thank you for getting me such a strong settlement, and being a friend as well, along the way. I’d be more then happy to talk to anyone who would like to know , what a fine attorney you are. Thank you for being there for me. Sincerely,

- J.F.

★★★★★

Over the past couple of years I have had the privilege of Mr.Jonathan Fleisher representing me for a personal injury case that has greatly impacted my life. Mr. Fleisher fought hard and diligently on my behalf and always kept my best interests in mind. It has been truly refreshing as well as a blessing to have someone this skillful and professional buckling down and making sure every detail is captured to support my case. He has delivered exceptional service and I would recommend him to anyone that needs a personal injury attorney.

- G.B.

★★★★★

Jonathan Fleisher was more than just my lawyer. He was my advocate and was very thorough with my case. Communication was well furnished which made for an easy process. Mr. Fleisher fought for my rights and did so justly with much empathy and compassion. I am more than elated with the outcome and how my case was handled by Mr. Fleisher. I would highly recommend him to friends , family or anyone who wants someone who will work diligently on their case. I appreciate and am very thankful for Mr. Jonathan Fleisher

- K.T.

★★★★★

Thank you so much for your diligent, professional, and thorough handling of my car accident settlement. You were beyond helpful, accommodating, and supportive during the process. You patiently explained, in detail, the procedures that would take place during the course of the claim. You continually updated me as progress was made and gave me in-depth details. Being that I was a novice to this type of practice, you advised me as to what was realistic, yet fair, as far as when, how, and monetarily the claim would be settled. When an offer was made, you advised me accordingly, and counter-offered for what you believed to be a reasonable and objective settlement. Beyond that, you also worked determinedly to reduce my medical claims and had great success. An attorney friend of mine went as far to say that you “hit a home run” when you negotiated my settlement. I want you to know how much your guidance and attentiveness to my claim meant to me. I will definitely recommend you and your firm should any of my acquaintances need legal advice in the future.

- J.W.

★★★★★

To Karlin, Fleisher & Falkenberg, LLC Please accept my sincere appreciation for the services your agency provided to me and my family on the Jessie Palmer wrongful death cases. There were so many issues that needed to be resolved, and with your assistance we were able to finally get the diagnosis report printed. My stepdaughters asked me to thank you as well for the settlements they received from their father's estate. We humbly appreciate the wonderful job your firm did with our case. In the future we will refer family and friends to your agency.

- L.P.

★★★★★