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

Looking for an attorney? Avvo can help.

search module image

Search our directory

Quickly connect with top attorneys through our legal directory to get help with your legal issue.

chat module image

Avvo's live chat agents can help coordinate a consultation with a local attorney.

Chat with a live agent who can match you with the right attorney for your legal needs.

Chat with

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

Ad

Transform legal challenges into solutions.

Connect now to review your situation.

The Avvo Rating explained

display-bg

The Avvo Rating explained

John Patrick Lonergan's Reviews

Avvo Review Score

5.0 /5.0

54 Client Reviews

Showing 1 - 4 of 4 reviews | Staff & Support

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 Zachary | January 06, 2022 | Hired Attorney

Great guy

Kept it straight with me always was available for communication, friendly staff, better results than expected.

Posted by anonymous | May 02, 2021 | Hired Attorney | Federal Crime

Hands Down Best Attorney

I would like to share with anybody that is in need of an attorney at law my experience. A loved one of mine got a federal charge that carries a sentence guideline of 11 to 15 years. I called around looking for help, the first 3 attorneys I called sounded like salesman and they all wanted a lot of mon...ey up front and payments that were way out of my possibility. Then I spoke to attorney John, he called me and explained everything perfectly he told me what the process was going to be and how he was going to handle it. He looked into my loved one’s case and called me to go over it as well. I am so happy I decided to retain this awesome attorney. Let me tell you what he did, he went to work for us! He told me everything that was going on throughout the case, he promptly registered as my loved one’s attorney and he helped us get a sentence of 22 months plus time served. He charged me one set price which included if the case went to trial. Fortunately, it did not get to that. His staff Brooke and Jack always help you with anything you need. Any time I needed anything they were there for me and my family. I can tell you that you will be hiring the best attorney. This was a federal case and my loved one and my family where grateful for the results. If you need the best representation John is the attorney you need!

Posted by Michael | August 15, 2016 | Hired Attorney | Criminal Defense

Assertive & Ethical

As the parents of an out of state college student who landed in a Peoria jail for felony drug trouble while attending the Summer Camp music festival in nearby Chillicothe, IL, we frantically contacted attorneys in Peoria seeking one we could trust. Whereas others we contacted made unrealistic claims ...about moving mountains on our behalf and negotiated fees based on how much they thought they could get us to pay, John's team was realistic concerning the outlook of the case, expressed sincere empathy that translated into aggressive advocacy, and was straightforward in communicating fees. We trusted John and his team and are very glad we did. He worked with the judge and prosecuting attorney on the novel approach of obtaining access for our son to an Illinois diversion program, even though he resides out of state. The program accepted him and delegated to the probation authorities in our state the follow-up related to mandatory drug testing, probation check-ins and completion of community service, all of which were completed on time and without incident. This minimized the overall impact: our son was able to complete his final year of university on schedule and avoid losing his job. Once the required time has elapsed to apply for expungement, we will be contacting John's team again to help him get that taken care of. We hope we never need his legal services again, but would not hesitate to call him if we did. M

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."

View All Endorsements

No Endorsement Data Available Yet
This attorney hasn't created any attorney endorsements recently on Avvo.

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?
  • Experience & background Years licensed, work experience, education
  • Legal community recognition Peer endorsements, associations, awards
  • Legal thought leadership Publications, speaking engagements
  • Discipline Disciplinary information may not be comprehensive, or updated. We recommend that you always check a lawyer's disciplinary status with their respective state bar association before hiring them.
Avvo Rating Levels
10.0 - 9.0 Superb8.9 - 8.0 Excellent7.9 - 7.0 Very Good6.9 - 6.0 Good5.9 - 5.0 Average4.9 - 4.0 Concern3.9 - 3.0 Caution2.9 - 2.0 Strong Caution1.9 - 1.0 Extreme Caution