Attorney at law
Michael J. Brennan
40+ Years of Effective Personal Injury Law
Proudly Serving Clients in Orland Park + the Chicagoland area
Attorney Michael J. Brennan has been fighting for injury victims and their families in Illinois for nearly four decades. Since 1985, he has built a legal career rooted in trial experience, client-focused service, and a strong commitment to results. He opened the Law Offices of Michael J. Brennan in 1995 to provide individuals in Cook County and across the southwest suburbs with direct, one-on-one legal representation after life-changing injuries.
Today, Michael focuses exclusively on personal injury and wrongful death cases — including car accidents, nursing home abuse, medical malpractice, and catastrophic injury claims. He represents individuals and families in Orland Park, Tinley Park, Oak Lawn, Palos Heights, and throughout the Chicagoland area.
At his firm, every case is personally handled by Michael from beginning to end. Clients never get passed off to a junior associate or case manager. That level of personal involvement makes a difference — and it’s one of the reasons why Michael has earned the trust of clients throughout the region.
Michael J. Brennan: Background + Experience
Before founding his own practice, Michael served as an Assistant State’s Attorney for Cook County, where he prosecuted criminal cases and built a deep understanding of courtroom dynamics, evidence, and cross-examination. That early trial experience continues to serve his clients today, especially when personal injury cases move from the negotiation table into the courtroom.
Michael uses that prosecutorial insight to anticipate the strategies used by insurance companies and defense counsel. He is a skilled negotiator, but never hesitates to take a case to trial if that’s what’s required to pursue full and fair compensation.
Whether you’re recovering from a serious injury or dealing with the loss of a loved one, Michael will take the time to listen, investigate your case thoroughly, and guide you through every step of the legal process.
A Personal Approach to Every Case
Michael understands that reaching out to a lawyer usually follows a crisis — an accident, a traumatic injury, or the loss of a family member. He believes you deserve to work with someone who sees you as a person, not a case number.
At his firm, you’ll never be passed around or left wondering who’s handling your claim. Michael will be your point of contact — the person who answers your questions, makes the calls, and represents you in court.
If you’re looking for a local personal injury lawyer who combines experience, integrity, and personal attention, you’re in the right place.
No Legal Fees Unless We Win
Get a Free Case Evaluation
40+ Years of Experience
Millions Recovered for Our Clients
Michael is a Former State’s Attorney
SETTLEMENT
$8,400,000
Truck Accident
SETTLEMENT
$525,000
Car Accident
SETTLEMENT
$750,000
Medical Malpractice
SETTLEMENT
$500,000
Slip + Fall
SETTLEMENT
$375,000
Dog Bite
Frequently Asked Questions
What types of cases does Michael J. Brennan handle?
Michael focuses exclusively on personal injury and wrongful death cases. These include car accidents, medical malpractice, nursing home neglect, catastrophic injuries (like TBI or spinal cord injuries), and third-party workplace injury claims.
Will I work directly with Michael or be handed off to staff?
You will work directly with Michael. He personally handles every case from start to finish. You won’t be passed off to an associate or paralegal.
Where does Michael J. Brennan practice?
Michael serves clients in Orland Park, Tinley Park, Oak Lawn, Palos Heights, and throughout Cook County and Will County. His office is conveniently located in Orland Park.
Does Michael take criminal cases?
Michael’s practice is now solely focused on personal injury and wrongful death matters. If you’re looking for criminal defense representation, he may be able to refer you to a trusted colleague.
How much does it cost to hire Michael J. Brennan?
There are no upfront costs. All personal injury cases are handled on a contingency fee basis — meaning you only pay if we win your case.
Recent Personal Injury + Accident Articles
Slip and Fall Injuries at Illinois Grocery Stores: What Evidence Helps Prove Negligence
Going to the grocery store is something most people do without thinking. You grab a cart, follow your list, and head toward the checkout. But when something as simple as a puddle in the aisle or a broken floor tile is overlooked, what should have been a routine trip...
How Lighting Conditions Impact Slip and Fall Liability in Illinois
Lighting is something most people take for granted. You flip a switch, a room lights up, and you go about your day. But when a bulb goes out or an area is poorly lit, especially in a public or commercial space, the risk of injury goes up. One missed step or unseen...
What to Expect from a Free Consultation with a Personal Injury Attorney
If you were recently injured in an accident and are thinking about calling a lawyer, you are not alone. Many people hesitate to reach out because they are unsure what that first meeting will be like. They wonder what kind of questions will be asked or whether they are...