Marker & Crannell, Attorneys At Law, P.C
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Marker & Crannell, Attorneys At Law, P.C
We invite anyone who has been injured in an accident to reach out and schedule a free consultation and case evaluation. Personal injuries can cause a significant amount of stress, both emotionally and financially. That's why we won't charge you a dime unless we win your case. If you're injured in a car accident in Naperville or Aurora, Illinois, and it was someone else's fault, reach out to us today.

We can obtain your crash report and offer a free consultation. After watching his grandfather fight his entire life for property the government was trying to seize, attorney Jason Marker discovered his own love for sticking up for people in unfair situations. With honesty and integrity at the core, Jason aims to provide top-tier legal service for his clients.
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Attorney Jason Marker has a real niche for being able to make clients feel calm in the midst of all that's going on. From day one, he takes charge of your case and handles all the legalities so you can focus on your healing. With Jason, you'll know what's going on with your case from start to finish.
Jason's fascination with the legal field began as a child in a situation that seemed anything but fair. Like his legal partner Jonathan, Jason found that he was very passionate about the medical aspect of law in terms of personal injury and wanted to make a difference for those people. I allow all of my clients to be in direct communication with me and I respond to their calls and emails quickly.
Since grade school, Jonathan's mother, teachers, and friends always knew he would be a lawyer. He has always had an interest in medicine, the human body, and the medical industry in general. That coupled with his passion for the legal field allows Jonathan to learn about his clients' injuries and their treatments in a manner that helps him explain to a jury the extent of why they need financial compensation.
Being an attorney has allowed Evan to do much more than follow in his forefathers' footsteps. It has allowed him to explore his interests in science and medicine. Evan began his university studies as a Biology major before switching to German and Political Science. This strong science foundation helps Evan daily in his practice.
Marker & Crannell is a true Naperville injury law firm. Jason Marker and Jon Crannell have long and deep roots to the community they now serve. They both grew up in Naperville. They both went to high school in Naperville (Jason NCHS and Jon NNHS). When they were done with law school and ready to build a family, they both moved back to Naperville.
Reviews (13)
R. G.
R. G.
Dec 21, 2021
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BRAVO ZULU to Jonathan Crannell and his amazing team who worked on my case, Ashley & Toni, thank you!
While I definitely wish to have never needed their services in the first place, I am extremely grateful to have had them in my corner fighting for me and taking care of everything!!! Their commitment to ensuring the best possible outcome for me, while allowing me to focus on recovering from my extensive injuries, was something I wouldn't have been able to put a value on until I unfortunately found myself in the situation. They kept me informed of anything happening with my case and they were easily
John L. Durante
John L. Durante
Nov 24, 2021
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Positive: Professionalism, Quality, Responsiveness
I dealt with Jonathan Crannell. He was always cordial and very informative. I have never been involved in an injury case and he got me through. He took care of everything. He made me feel like even my minor case was important.
Mario
Mario
Oct 18, 2021
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Positive: Professionalism, Responsiveness
Took the time to hear about an auto accident scenario for me with out charging a retainer. Much appreciated and highly recommended.
M. L.
M. L.
Apr 30, 2021
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We definitely recommend Jonathan Crannell and his firm, as they helped us with a very rough time from a an auto accident we endured. Jonathan, explained the process of our case the whole way through, always was there to answer our questions, comforted us during our suffering, treated us with kindness, and went above and beyond to get us the triumphant outcome that was fair. His assistant Ashley also was very kind and always was there to lend assistance whenever needed. Jonathan and his firm has treated us like family and he follows through with anyone who needs help. You cannot go wrong with this
Jerry Parish
Jerry Parish
Apr 21, 2021
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Positive: Professionalism, Quality, Responsiveness
I was in a horrible accident 8/2021. I was unable to handle my affairs but Jonathan Crannell took care of everything. I am confident that he acted in my best interest.
Michael Badders
Michael Badders
Nov 28, 2020
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Jayson Marker was great in handling my workers comp case. He was honest and upfront with me from the moment I stepped in his office.
He is very professional and responsive. He made me feel at ease through the entire process and he did exactly what he said he would do.
His paralegal Toni is great as well, she answered all my questions and was on top of everything.
She always returned my calls and helped me understand the things I didn't.
I would highly recommend Jason and his staff.
They get the Job done.
Jon Catlin
Jon Catlin
Aug 10, 2020
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Jason Marker did an excellent job representing me on my workers compensation case. He kept me informed every step of the way and got me the compensation that was well deserved. I originally started off with a different law firm And changed quickly when I found them to be very incompetent. The day that I signed on with Jason, things started to move forward. Look no further than Marker and crannell for representation.
Nicole Morris
Nicole Morris
Jun 09, 2020
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I received legal advice from Jon Crannell. He was responsive, honest, and knowledgeable. I found his advice to be straightforward and very helpful. I would absolutely seek his advice or counsel when needed again.
Terrance Gant
Terrance Gant
May 31, 2020
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I recently had the pleasure of working with
Jonathan P. Crannell. Jonathan expressed a great deal of empathy from our initial meeting and I was convinced he would be the best lawyer for my case. He has experience, patience , open communication and integrity. I'm very pleased with the service I received and would definitely recommend his team to anyone in need .
John Bertulis
John Bertulis
Jun 26, 2019
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Jonathan was a true blessing for our family throughout a process we new very little about. I would consider him the ultimate Swiss army knife of attorneys. I mean that in the best possible way. He's tough and gritty when you need him to be, gentle in the hard times, was ALWAYS patient and compassionate with all of us, and yet laser focused on ALWAYS doing the right thing in the right way. He always seemed well prepared and knowledgeable regardless of the many turns in the case. His great ambition and passion was matched equally by his huge heart. Not sure how many people gush over their attorney
Patricia C.
Patricia C.
Mar 03, 2019
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Following a car accident two years ago, colleagues connected me with attorney John Crannell, assuring me that he would willingly give me free advice even if it turned out that I didn't need official representation. In this instance, what sounded too good to be true really was true. Through phone calls and e-mails, Mr. Crannell gave me the information I needed to navigate this situation that I knew nothing about handling, and it is finally settled. Forget the nasty stereotypical lawyer jokes. Here's a gentleman who is kind, caring, and helpful. If I ever do need to hire a personal
Frank N.
Frank N.
Apr 08, 2018
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Jonathan Crannell was our lawyer for our injury claim related to a dog bite involving our 12 year old daughter. It was hard enough seeing our daughter go through this, and the multiple shots she had to endure while at the hospital, but then we had to decide who we could talk to in order to make sure we were able to get recovery of our medical bills as well as anything for the pain she had to endure.
We ended up finding Jonathan Crannell, who works for the law firm of Marker and Crannell in Naperville, and I am so glad we decided to hire him and his firm to help us through this process. Our family
Anthony S.
Anthony S.
Jan 29, 2018
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Great Attorney very nice and professional. Doesn't mess around . He explains everything and get schedule to Dr appoints .