30 Years’ Experience

Fighting for Clients’ Rights in the Chicago Area

If you’ve suffered injuries in an accident, or you face criminal charges, your rights deserve to be protected.

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$10+ Million Recovered

Cook County Personal Injury Attorney

Backed by decades of experience, I know how to fight for fair compensation.

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Former Prosecutor

Cook County Criminal Defense Lawyer

I have secured numerous not-guilty verdicts for clients.

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Free Initial Consultation

Understand Your Legal Rights

I’m ready to go over your options with you—contact my firm today!

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Get to Know Attorney Michael J. Brennan

Some big law firms treat you like a number. They take their fees and forget your name. With some big law firms, you hire an attorney but get a paralegal, instead. Why bother? Michael Brennan is different. As a sole practitioner, he handles every client’s case personally. He takes the time to get to know each client’s individual needs and then works to ensure the best possible outcome. If you need the representation of a personal injury attorney who cares about each and every one of his clients, contact Michael Brennan today!

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When your rights and your future are all on the line, you need to know that you are working with an attorney who has the experience and tenacity to win your case in trial if it ever comes to that. You can be confident choosing my Cook County law firm, the Law Offices of Michael J. Brennan. When you work with an attorney who is included in The National Trial Lawyers: Top 100, you are working with someone who has been recognized as one of the top hundred lawyers in the entire state to practice personal injury or criminal defense law. As am I also backed by 30 years of trial-tested experience, I am well prepared to help you stand up for your rights.

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High-Caliber Advocacy in Cook County

If you were injured in an accident, then you have an uphill battle with insurance if you are going to win a settlement that covers your medical bills, lost wages, and more. I am a Cook County personal injury attorney who brings 30 years’ legal experience to each negotiating table and every courtroom. If you are facing the possibility of jail time, fines, and a lifelong criminal record, put a former prosecutor on your side. I offer the award-winning, battle-tested defense you need to guard your freedom and future.

Whether you are up against a state prosecutor or a big insurance company, I can fight for your rights.

  • “Michael is highly skilled, extremely competent and very attentive.”

    - M.C.

  • “Mike thanks so much for all of your help”

    - J.S.

  • “Thank you for all of your hard work and your attention to detail.”

    - K.K.

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Real Results. Our Victories.

  • Brain Injury


  • Auto Accident


  • Private Security Guard Assault


Other Results

Contact a Trusted Cook County Law Firm Today

Work with an Award-Winning Attorney

Have you or a loved one been in an accident? You only have a limited time to file a claim for financial compensation. My firm is ready to assert your rights against the insurance company to make sure you recover the full amount you are owed. Learn how I can help you today—before your case expires!

Are you facing criminal charges? Was someone you know arrested? The prosecutor has already started a case against you, aided by the police department and government resources. You need an experienced trial attorney to level the playing field. Get time on your side—start your defense now!