Former State's Attorney With Over 35 Years of Experience



If you’re looking for a DUI attorney near you, we have offices conveniently located nearby in both Chicago and Orland Park and serve residents of Cook County, Illinois.


It will have a dramatic impact on your life if you are convicted of driving under the influence of alcohol or a controlled substance. Penalties will include jail time, the loss of your license, fines, and a permanent criminal record. You will also likely suffer from higher rates for car insurance, and may possibly be disqualified from jobs which require you to drive. If you have been arrested then legal representation will increase the likelihood of less penalties.

Many think of DUI cases as a simple matter. The fact of the matter, however, is that it is a criminal case. You may be facing a misdemeanor charge or a felony case. Misdemeanor cases will begin with an arraignment in Municipal Court at which you will enter a plea of guilty or not guilty. In felony matters the arraignment will proceed in Circuit Court after an indictment or preliminary hearing.

Michael J. Brennan is an Orland Park DUI lawyer representing those accused of driving drunk. Michael will immediately obtain the evidence against you. This will include police reports, blood test results, and other scientific evidence gathered by the police. If there is a basis to challenge your arrest then Michael will file the appropriate Motions. He will challenge the officers at an evidentiary hearing and ensure that your rights are protected. If necessary he will work to reach the best plea resolution possible so that you may avoid trial. You are facing a serious situation and Michael will take it seriously.


DUI charges often rely on major aspects including:

  1. Lawful Vehicle Stop: DUI cases often hinge on search and seizure issues stemming from whether the police stop of your vehicle was lawful.’
  2. Improper Sobriety Test: There may also be issues with how field sobriety and blood chemical tests were preformed; if these procedures were handled improperly then it may be possible to have the evidence against you excluded from Court.

Read our article about how to beat a dui for more tips.


Jury Trial finding of Not Guilty DUI with a .117 Breathalyzer result.

2 Charges for DUI. First charge Driving while under the influence of Alcohol and second charge is Driving while under the influence of Alcohol with a Blood Alcohol content in excess of the legal limit of .08. Client was stopped for speeding (50 mph in a 35 mph zone). He was stopped by the police at 3:30 am. The police officer spoke with my client while my client was still in his vehicle. The Officer stated that my client had a strong odor of alcohol, and glassy and blood shot eyes. The officer further stated that he observed an open case of Miller Lite beer with bottles missing in the back seat. My client also told the officer that he had consumed 6-8 beers that night. The officer had my client step out of the vehicle and perform Field Sobriety Testing (FST). The officer testified that my client failed all three of those tests.

The next test the officer performed was the portable breath test and my client breath sample was a .129. He was placed under arrest on two counts of driving under the influence. He was brought to the police station where he performed the breathalyzer test and that test registered a .117. This was my client’s second drunk driving arrest. The case went to trial before a Jury. Both police officers testified and the State used an expert from the Illinois State Police to verify the accuracy of the breath machine. My client testified and told the Jury how much he had to drink that night and how he felt he performed the Field Sobriety Tests. The Jury deliberated for less than one hour and found my client NOT GUILTY on both the charges of DUI.


Michael is a former prosecutor with the State’s Attorney’s office. He brings a high level of experience to every case and strive to provide the highest level of service. This service includes quickly returning phone calls, promptly responding to emails, and making himself available to answer your questions. Michael understands that this is a stressful time and being able to contact your lawyer should not be another cause for concern. Ready for an attorney to assist you? Please call our office at (312) 379-9270 or click the “Contact Us” button below if you prefer email and one of our staff will get in touch to schedule a consultation.

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