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Jason Paul Kopec

Criminal defense Attorney at Wheaton, IL

3.9   7 reviews
  • Licensed for 22 years
    State IL
    Acquired 2001
    Active and Authorized to Practice Law No misconduct found

We have not found any instances of professional misconduct for this lawyer.

About Jason

Learn Jason’s areas of practice.

Mr. Kopec grew up in Wheaton and graduated from Loyola Law School in Chicago.  Mr. Kopec currently lives with his family in Aurora.

After law school, Mr. Kopec joined the Cook County State's Attorneys Office in Chicago and for more than seven years prosecuted hundreds of criminal cases.  As an assistant state's attorney he prosecuted DUI's, narcotics, sex crimes, and other violent crimes.  Additionally, Mr. Kopec successfully argued before the Illinois Appellate Court on numerous occasions while with the State's Attorney's Office.

Mr. Kopec focuses his practice on criminal defense.  He represents clients charged with a wide array of criminal offenses including DUI's, driving on a suspended license, narcotics offenses, sex crimes, white collar crime, and other violent crimes.  Drawing on his vast experience as a criminal prosecutor, Mr. Kopec aggressively works on behalf of his clients both in and out of the courtroom.

In addition to his practice in Illinois State Courts, Mr. Kopec is admitted to practice before the Federal District Court for the Northern District of Illinois, including the Trial Bar and the Federal District Court for the Eastern District of Wisconsin.


Jason Paul Kopec
Wheaton, IL
Kopec & Kent P.C.
118 S. Clinton St. Suite 200
Chicago, IL, 60661
Jason Paul Kopec
Aurora, IL
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3.9 / 5.0
  7 customer reviews
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Posted by anonymous | September 13, 2013
Great attorney with a keen eye for detail
Jason Kopec has helped me several times, and to say the least, i could not be more satisfied with the outcomes. Mr. Kopec also helped a friend of mine and he had a very serious charge dismissed. I think that if there is an attorney who makes you feel assured about the results you are looking to get, this man would be the one.
Posted by Holly Frye | August 8, 2013
Happy Happy client
Jason Kopec helped get the facts straight with an accident that I was wrongfully accused with. I was driving in the left lane of a one way street when a driver from the right lane made a left turn in front of my car.....I went to the hospital with whip lash. The police entered my hospital room with 4 tickets. The man who hit me told the police I just ran into him. The night before court, I was feeling hopeless, my mother looked up which referred her to Jason's firm. I received a call right after a conversation with my mother. Jason herd my case and meet me in court the next morning. I was given the best advice, Jason was able to give the Judge insight on how it truly went down in the accident . A lengthy bench trial later and all charges were dropped! I am one truly grateful client, I would definitely refer Jason to anyone in need of legal aid.
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Posted by Diedra | September 13, 2012
Professional, Effective
Jason represented me in a multiple driving on a suspended license case where the state was recommending jail time. We had a consultation on the phone, he came to court reviewed the details of the case, negotiated with the prosecutor and got the case settled with no prison time and no conviction. He is very knowledgeable, personable, and persuasive. A great negotiator. He kept me informed every step of the way. I highly recommend Jason Kopec.
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Posted by anonymous | March 26, 2012
Consummate professional....
Jason represented me recently in a civil dispute with quasi-criminal undertones. Though his forte naturally lies in criminal litigation, his advocacy abilities were masterful in my case, and ultimately led to a successful outcome for me. From the beginning, I was impressed with how Jason really took the time to determine what was important to me and what outcomes were desirable for me. Jason allayed much of my anxiety by demystifying the legal process and guiding me through a roadmap of how various scenarios could play out in court. He patiently addressed my numerous questions and answered them in a digestible manner without ever making me feel stupid. I also appreciated his candor - he set realistic expectations and made me aware of potential challenges from the beginning. Jason maintained a high level of communication throughout the process so I never felt like I was out of the loop. Most importantly, his prowess as a former Cook County prosecutor really shined in the courtroom. His legal knowledge is exceptional and I was happy that he was the attorney representing me. Overall, he turned a potentially nerve-racking experience into a very bearable one. I would recommend Jason in a heartbeat to anyone seeking legal representation!
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Posted by Jen | April 9, 2010
A great experience
Jason has a very personal and professional to practicing law. I highly recomend his services.
Posted by anonymous | September 12, 2016
This review is from a person who hired this attorney.
| Hired Attorney
stay away from him
Hired Jason and at first was on the spot. As the case went on he fell apart. We went over things and a few weeks later he forgot about and had to go over it again. Late to court dates and even missed a few with an excuse it wasn't on his calendar. In the end he never investigated or gathered information on my case. He told me to plea a deal that was horrible offer. You can tell he just wanted to be done with my case. The day of my restitution trial he was more worried about another client in the back row crying then to stay focused on mine. Avoid him at all cost.
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Posted by anonymous | May 7, 2014
Criminal defense
I was seeking to hire Jason to help me with a criminal case. From our initial consultation he was a bit arrogant and rude. After telling him I would like to hire him he said he would email me forms to get started. A week later never received anything. I kept calling him, left numerous messages with his partner and on his voicemail; no return phone call, text message or email. I then politely emailed him saying I don't need his services and of course he didn't reply. Very unprofessional!
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  • Free Consultation 30 minutes
Payment methods
Cash, Check, Credit Card


AVVO RATING 8.2 (Excellent)

Work Experience

  • Prosecuting Attorney
  • Cook County State's Attorney's Office
  • 2007 - 2009
  • Assistant States Attorney
  • Cook County State's Attorney's Office
  • 2001 - 2009


  • Loyola University Chicago School of Law
  • JD - Juris Doctor
  • 2001


  • Chicago Bar Association
  • N/A
  • Illinois State Bar Association
  • N/A

Languages Spoken

  • English

Honors and Awards

  • Peer Review Rated
  • Martindale-Hubbell
  • 2016

Attorney endorsements

Received (4)
Given (4)
Endorse Jason
Criminal defense Attorney | Jun 16
Relationship: Fellow lawyer in community
"Jason has exhibited a skill set rarely matched in the legal community. He knows how to handle a case and get a great disposition, whether it be through a negotiation or a trial. He is one of Chicago's best young lawyers."
Criminal defense Attorney | Aug 03
Relationship: Co-worker
"I highly endorse this lawyer's work. I've known Jason Kopec professionally for over 9 years, and he is one of the most intelligent and knowledgeable defense attorney's I've met. He is an amazing advocate for his clients, and he will aggresively defend his clients both in and out of court. Jason has never been afraid to take a case to trial, and he has always been a relentless defender of his clients' rights."
Criminal defense Attorney | Apr 19
Relationship: Fellow lawyer in community
"Without a doubt Jason is one of the smartest and most dedicated defense attorneys in the Chicago area. As a former prosecutor Jason knows how a case is handled from both sides. Jason attacks the legal and factual issues in every one of his cases. When charged with a serious crime Jason is the attorney you want by your side when you enter a court room."
Criminal defense Attorney | Apr 06
Relationship: Fellow lawyer in community
"Jason Kopec is one of the smartest lawyers I know. Jason is fearless in the coutroom and the clients love him. I have witnesses his work as both a prosecutor and defense lawyer and I have always been impressed."
Criminal defense
Criminal defense
Criminal defense