John Patrick Lonergan

John Patrick Lonergan

also known as Lonergan Law Group, Ltd.

5.0
Rating: 8.6

Licensed for 33 years

Criminal defense Lawyer at Peoria, IL
Practice Areas: Criminal Defense, Federal Crime, DUI & DWI ... +4 more

4541 N. Prospect Road, Suite 102, Peoria, IL

About John

Biography

Fees and Rates

Cost

Free Consultation

$0 first 60 minutes


Payment Methods

  • Cash
  • Check
  • Credit Card

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Licenses

Licensed in Texas for 14 years

State: Texas

Acquired: 2011

Eligible to Practice in Texas

No misconduct found

Licensed in Illinois for 32 years

State: Illinois

Acquired: 1993

Active and Authorized to Practice Law

No misconduct found

Licensed in Missouri for 33 years

State: Missouri

Acquired: 1992

Inactive

No misconduct found

Location

Lonergan Law. Group, Ltd.

4541 N. Prospect Road, Suite 102, Peoria, IL, 61616

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John Patrick Lonergan's Reviews

Avvo Review Score

5.0 /5.0

54 Client Reviews

Showing 1 - 5 of 54 reviews

Posted by Tom | December 25, 2025 | Hired Attorney | Lawsuits & Disputes

Easy five out of five stars.

John is an easy five out of five. From the beginning he does not sugarcoat things and he gives you the reality of the case and sets aggressive, reasonable expectations. This turned into an outstanding conclusion to my case, which helped myself, and my family finally move along. He will not stop fi...ghting for you under any circumstance. I couldn’t have asked for better if I tried. Hire him, trust him, and you will not regret it.

Posted by Yvonnee | December 16, 2025 | Hired Attorney | Criminal Defense

Worked a Miracle on short notice

Atty Lonergan and his staff were nothing short of amazing during one of the most stressful, confusing, and scary times of my life. I called for a consult with a case that was extremely time sensitive and I had very little hope that it could be resolved or that anyone would be able to help me after I... ignorantly took a plea against my better judgement. After fighting in the courts for almost 1 year, Mr Lonergan was able to resolve my case within a couple days (for a very modest fee) I'm so thankful that I hired him and I am even more thankful I'll be spending the holidays and everyday moving forward with my children without a jail sentence hanging over my head. The professionalism, organization, and his expertise in my specific case matter is unmatched. I'd recommend Mr Lonergan 10 times over without a second thought. He's upfront, honest, and gets down to business. If you're in a situation and landed on this review, it wasn't by mistake. You're in good hands with this attorney! Him and his staff are simply the best!

Posted by anonymous | August 13, 2023 | Hired Attorney | Lawsuits & Disputes

Juvenile Court

John was easy to work with, very responsive and was determined to get the best outcome for our case. We would definitely use him again in the future.

Posted by Gail | May 20, 2023 | Hired Attorney | Divorce & Separation

Five Stars!

I cannot express enough gratitude for the incredible legal services provided by my attorney during the seemingly never-ending ordeal of my divorce proceedings. I was trapped in a relentless battle with a narcissistic ex who refused to cooperate or negotiate on any terms. From the very first consul...tation, John demonstrated an unparalleled level of attentiveness, empathy, and professionalism. His genuine concern for my well-being and understanding of the complexities involved in my case immediately put me at ease. I finally felt like I had a competent and compassionate advocate fighting by my side. What truly sets John apart is his remarkable ability to navigate the intricacies of my divorce. Despite the seemingly insurmountable obstacles presented by my ex, he fearlessly forged ahead, leaving no stone unturned in pursuit of justice. His tenacity, strategic thinking, and thorough preparation were simply awe-inspiring. Finally, after ten long years, my divorce is final. John’s expertise and mastery of the law, combined with an unwavering commitment to my case, ultimately led to a favorable outcome. I cannot adequately express the relief and joy I experienced when the divorce was officially concluded, thanks to his unwavering efforts. To anyone who finds themselves in a similar situation, I wholeheartedly recommend John Lonergan. He possess an extraordinary ability to tackle the toughest of cases and an unwavering dedication to his clients' best interests. His outstanding legal skills, coupled with genuine compassion, make him an absolute gem in the legal field. Thank you, John, from the bottom of my heart!

Posted by anonymous | March 09, 2023 | Hired Attorney

Great, honest, lawyer

Hired John for a few different cases and he was amazing. He is a great lawyer and his fees are very reasonable.

See All Client Reviews

John Patrick Lonergan's Lawyer Endorsements

Endorse John
Caryn Jennette Kamp headshot
Caryn Kamp

Criminal defense lawyer | Jul 10

Relationship: Worked together on matter

"John is always professional and competent. I have worked with John on a few matters as well as had an opportunity to observe him in various other matters. He always zealously represents his clients while maintaining a good working relationship with the prosecutors."

Christopher Gene Leasor headshot
Christopher Leasor

Criminal defense lawyer | Jul 07

Relationship: Fellow lawyer in community

"I have known John Lonergan for 12 years. Not only is he an outstanding criminal defense attorney, he is a great family law attorney as well. I know that anyone who chooses John as their attorney is in excellent hands. I would recommend John to anyone for their criminal defense or family law needs."

Linda Jeananne Martin Watson headshot
Linda Watson

Criminal defense lawyer | Jul 07

Relationship: Opposing Counsel on matter

"I worked as an Assistant State's Attorney for years, working on the other side of cases against John. I was always impressed how he was able to work with a prosecutor without ruffling feathers. He was able to speak with a prosecutor about the case, focusing on the case, the issues the case presented, and each particular defendant. It is a pleasure to endorse John Lonergan."

Matthew Hoppock headshot
Matthew Hoppock

Criminal defense lawyer | Jul 07

Relationship: Fellow lawyer in community

"I have known John Lonergan for more than 15 years. He provides great legal representation for a moderate price."

Charles Matthew Miller headshot
Charles Miller

Divorce and separation lawyer | Jul 06

Relationship: Fellow lawyer in community

"I have known John for over nine years. I emphatically recommend his services and would not hesitate to recommend him to friends and family in need of representation in criminal and family law matters. Not only does he possess more than sound legal abilities, but what really sets John apart is how much he cares about his clients and wanting to achieve a good outcome for them. I have personally witnessed him going above and beyond for clients, often without them realizing."

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Experience

Rating:  8.6 (Excellent)

Honors

2018

Peer Review Rated, Martindale-Hubbell

Work Experience

1997 - Present

Owner, John Lonergan Law, Ltd.

1993 - 1997

Assistant States Attorney, Peoria County State's Attorney's Office

Associations

1993 - Present

Illinois State Bar Association

Member

Sample of Legal Cases

Client wishes name withheld as his record will be cleared in a few years

No jail, TASC Probation-client will be able to expunge his conviction and criminal record in a few years.

See More Legal Cases

Education

1992

Southern Illinois University, Carbondale

JD - Juris Doctor

1989

Eastern Illinois University

BA - Bachelor of Arts

Languages

English

Activity

Avvo Rating

Our Rating is calculated using information the lawyer has included on their profile in addition to the information we collect from state bar associations and other organizations that license legal professionals. Attorneys who claim their profiles and provide Avvo with more information tend to have a higher rating than those who do not.

What determines Avvo Rating?
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Avvo Rating Levels
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