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For three decades, the Law Offices of Michael J. Brennan have served the Tinley Pak area and its residents, providing them with the finest expert legal representation services. Since 1996, our experienced lawyers have represented persons who have suffered injuries file personal injury claims, and helped those looking for legal criminal defense representation.

Our law firm has a renowned reputation for legal services among residents in the Cook County region and across Illinois. We pride ourselves on our solid expertise, years of experience, and our personal touch, helping Tinley Park residents through some of their most difficult times.

Our Tinley Park office handles all types of personal injury as well as criminal defense cases.



Illinois’ road and highway system includes thousands of miles of interconnected highways, and streets. The large number of motorists, truckers, motorcyclists and other persons using these streets translates into a high risk of accidents every year. In 2014 alone, 998 people died in motor vehicle accidents across the state of Illinois. Our attorneys represent persons injured in motor vehicle accidents including:

Apart from this, Michael Brennan also represent persons who have been injured in other types of accidents including:

A personal injury claim can help you recover compensation that includes medical expenses, lost income, and pain and suffering. Our personal injury lawyers represent victims who have suffered injuries as well as family members and survivors of people who have been killed as a result of others’ negligence, helping them recover damages for wrongful death claims.

When you hire us, we will immediately get to work, procuring evidence that will help substantiate your personal injury claim. Investigations will involve procuring accident records and police reports, and locating witnesses, who may be able to provide crucial testimony in your case. All this is done in order to ensure that you recover the maximum possible compensation that you are legally eligible for.


Whether you are facing an investigation, or are under arrest, you need expert legal advice and quickly. Our Tinley Park criminal defense attorneys handle DUI and criminal defense cases in the greater Chicago area and across the state of Illinois.

Our criminal defense attorneys know that when it comes to criminal defense, there is absolutely no time to waste. We get to work immediately, working to get bail for you if you are under arrest, or understanding the basics of your case if you are under investigation. We will locate and identify witnesses, procure and verify evidence including surveillance tapes, get information on key witnesses for the prosecution and conduct background checks on these, to build a strong legal defense for you. Over the years, we have developed close and trusting relationships with key personnel, including prosecutors, judges, probation officers and others who will play key roles in your case.

We handle criminal defense cases involving

There is no time to waste when you have been arrested. Getting the right legal advice could mean the difference between freedom and incarceration for you.


Michael J. Brennan has been practicing criminal defense and personal injury law in the state of Illinois since 1995. He established the Law Offices of Michael J. Brennan in 1996 with a singular goal in mind – to provide reliable and expert legal representation service to residents of Illinois, including the greater Cook County region and across the state.

Whether you are under arrest, or are facing the devastating loss of a loved one, Michael understands that these are highly traumatizing times for you. He prides himself on bringing a personal touch to every case he takes on, personally handling all details of every case in his docket. He understands that a personal injury victim is dealing not just with injuries, but also the resulting financial losses.

He makes it easy for you to access the expert legal services that you need, visiting you at your home or at the hospital, if necessary. He provides clients with his cell phone number, so that you can contact him if you have any questions about your case. He makes sure that all of your questions and queries are addressed promptly and accurately, ensuring that you have the time and peace of mind to focus on your own health and well-being, while your rights are protected.

Check out what Wendy had to say about us on Avvo:

Mr Brennan helped me with a case that was nearly dead in the water. Because of time restraints and assumptions on my behalf, I was struggling financially paying on bills I thought were my own from a car accident over a year ago. I reached out to him thinking not much could be done because I had had no results with the insurance companies before. Whenever I reached out on my own my words fell of deaf ears and became tired to listeners. He was patient and listened to me and guided me through step by step . He not only got to the the bottom of the error but gave me options and then we followed through and he got us results before the statue of limitations gave out. He is a true advocate for the little guy ( or gal in my case) and it wasn’t about greed or winning it was about doing the right thing. Just reach out -he’s there to help.

Rating: 5/5 :star::star::star::star::star:


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