The Lawyer Behind Your Case
Mackenzie J. “Mac” Mahony is a partner at Mixan Mahony, LLC and a Chicago plaintiffs’ trial lawyer representing individuals and families in serious personal injury and wrongful death cases in Chicago, Cook County and throughout Illinois. His practice includes medical malpractice, nursing home abuse and neglect, construction and workplace injuries, car and commercial truck crashes, premises liability, and other cases involving serious injury or death.
Mac has experience trying cases on behalf of both plaintiffs and defendants. That background gives him a distinctive perspective on how defense attorneys, insurance companies, corporations, and other defendants evaluate liability, damages, and risk. He uses that perspective to anticipate arguments, develop case strategy, and put his clients in the strongest position for trial or settlement.
Mac has secured significant verdicts and settlements for clients throughout Illinois, including record-setting recoveries in multiple counties. His approach is grounded in preparation, strategic judgment, candid advice, calculated risk, and the conviction to see a case through.
Recognition & Professional Honors
Mac’s work has been recognized by the Illinois legal community. In 2023, the Chicago Daily Law Bulletin named him one of its 40 Under Forty Illinois Attorneys to Watch.
He has also been recognized as an Illinois Super Lawyers Rising Star (2020–2026) and an Emerging Lawyer (2020–2026).
Judges and colleagues have described Mac as “exceptionally well-prepared,” “quick on his feet,” and “highly persuasive in front of a jury.”
Education
- University of Illinois Chicago School of Law
- DePaul University
What Clients Say About Working With Mac
Representative Verdicts & Settlements
Mac has obtained significant verdicts and settlements for clients in Chicago and throughout Illinois, including multiple record-setting recoveries.
- $28,240,987.50 settlement on behalf of Plaintiffs who were injured or killed during an explosion at a chemical manufacturing plant at Plaintiffs’ workplace. The Plaintiffs also received waivers of workers’ compensation liens totaling over $650,000.00.
- $12,000,000 settlement (Kane County, IL) on behalf of a 28-year-old man, a temp agency employee on assignment at a Kane County distribution warehouse, who sustained fractures to his left tibia and fibula and a degloving injury to his lower leg. This is the largest settlement secured in Kane County, surpassing the previous record of $7.5 million set in 2012. Plaintiff also received a $192,000 reduction in his workers’ compensation lien.
- $5,500,000.00 settlement of a McHenry County, IL motor vehicle collision on behalf of a 62-year-old woman. In February of 2024, at approximately 5:50 pm, our client was a pedestrian who entered the roadway, attempting to remove broken glass from the path of vehicle traffic, when she was struck by the Defendant’s vehicle. Our client’s injuries included a concussion and broken pelvis, patella, and wrist.
- $5,350,000.00 settlement on behalf of a 45-year-old man who was a passenger in a golf cart rollover incident in Galena, Illinois, due to a steep and unsafe cart path, which caused multiple and permanent leg injuries.
- $4,275,000 medical negligence settlement at trial for a man who had a left lower leg amputation.
- $2,800,000 Wisconsin construction negligence settlement on behalf of the Estate of a 24-year-old laborer who fell from a four-story wall opening while operating an ATV as part of his work duties at a construction project.
- $2,550,000 settlement on behalf of a 2-year-old girl who sustained bilateral second and third-degree burns to her hands due to an allegedly defective appliance at a home in Shorewood, IL. The injuries required multiple surgeries and a two-week stay in a burn unit.
- $2,250,000 settlement (Will County, IL) on behalf of the estate of a 76-year-old woman, a Coumadin patient, who fell at home, fracturing her shoulder and pelvis. She was transferred to a hospital and died two days later from internal bleeding, survived by her husband and adult children. Allegedly, the hospital staff failed to order a CT scan to rule out bleeding; untreated bleeding ultimately caused her death. This is the highest wrongful death settlement in Will County, IL, on behalf of a geriatric patient in a medical malpractice case.
- $1,950,000 settlement on behalf of a M-28 group home (CILA) resident. In January of 2022, Plaintiff lived with epilepsy, developmental delay and was at high risk for falling. In January of 2022, Plaintiff had a seizure and fell, suffering a C4 fracture, which was treated surgically. This is the highest settlement on behalf of a group home (CILA) resident in Illinois.
- $1,750,000 medical negligence settlement on behalf of a 58-year-old man whose physician allegedly failed to diagnose his prostate cancer, which became metastatic and terminal.
- $1,482,000.00 jury verdict for a mom on her bicycle and who was hit by a car door and sustained pelvic and dental injuries.
- $1,250,000 settlement for a man injured during a disputed liability collision.
- $1,027,500 settlement on behalf of the Estate of a 72-year-old man who was injured, and later died, after falling from the front concrete steps at the home of an acquaintance.
- $1,000,000 settlement (Franklin County, OH) on behalf of the Estate of a 40-year-old man who, while riding his bicycle in the roadway at night, was struck and killed by a delivery driver.
- $1,000,000 settlement (Macon County, IL) on behalf of a group home resident, F-55, who was battered when one of her housemates, M-40, experienced a psychotic break, and attacked three female housemates, including F-55, who sustained multiple rib fractures, a periorbital fracture, and a cortical contusion. Plaintiff alleged that the Defendant group home was negligent in allowing M-40 to reside in the group home with Plaintiff, and for failing to appropriately manage M-40’s medication regimen. This settlement is the record for Macon County, IL on behalf of a resident of a nursing home or group home.
- $1,000,000 settlement (Will County, IL) on behalf of the estate of a 95-year-old resident of an assisted living facility. Despite her known risk for falls and need for weight-bearing support, Plaintiff suffered two falls resulting in shoulder and hip fractures, respectively. Plaintiff had to undergo surgery for her injuries and died three months following her second fall. This is the highest settlement in Will County, IL, on behalf of a resident of an assisted living facility or nursing home.
- $1,000,000 medical negligence settlement on behalf of the estate of a 64-year-old man whose physician allegedly failed to diagnose his liver cancer, which became metastatic and terminal.
- $1,000,000 construction negligence settlement on behalf of a 60-year-old drywall taper who attempted to move a loaded drywall cart – when the cart’s wheel got caught on a piece of construction garbage and tipped over, striking him. Plaintiff suffered rotator cuff injuries and a broken leg.
- $1,000,000 settlement on behalf of the estate of a 70-year-old group home resident. Despite his known risk for falls, Plaintiff suffered a preventable fall at the CILA home, resulting in injuries to his wrist and head, and then was allowed to fall again two months later, this time causing a hip fracture. Plaintiff had to undergo surgery and, unfortunately, died 10 days later.
- $1,000,000 settlement on behalf of the estate of a pedestrian who was struck and killed by an automobile. Plaintiff was standing near the curb in front of his home in Elk Grove Village when the Defendant made an improper left turn, causing the driver’s side mirror to strike Plaintiff in the back of the head. Plaintiff was clearing leaves from a storm drain on the corner by his home at the time. He sustained a closed head injury and died the following day. He was survived by four grown children.
- $1,000,000 settlement on behalf of the estate of a group home resident who was left unsupervised in the home’s kitchen, where he accessed solid food, which was inconsistent with his diet. The resident choked and, ultimately, died from complications of asphyxia.
- $1,000,000 settlement on behalf of a group home resident who required assistance with activities of daily living, medication management, and demonstrated poor safety awareness. During a summertime outdoor activity at the facility, the Plaintiff suffered from heatstroke, resulting in complications including sepsis and an extended ICU stay. We alleged that the Plaintiff was taking four medications that increased the likelihood of his becoming overheated or dehydrated and, as such, were contraindications for extended sun exposure.
- $962,500 medical negligence settlement with a Chicago area hospital on behalf of the Estate of a 78-year-old woman. Our client presented to the hospital’s ER with complaints of headache, chest pain, and shortness of breath. The hospital did not admit her, order a chest CT, or consult a cardiologist. This case settled on the fourth day of trial.
- $950,000 settlement for the estate of a resident who died from post-operative complications after falling at the defendant nursing home.
- $900,000 settlement of a Wisconsin lawsuit on behalf of the Estate of a 56-year-old man who was the victim of a fatal head-on collision after the Defendant driver attempted an illegal pass in a no-passing zone. The Defendant driver only had a $25,000 insurance policy, and Wisconsin law capped the wrongful death damages at $350,000. We argued not only that the Defendant driver was delivering auto parts for the benefit of a third-party retailer, but also that the decedent experienced seconds of conscious pain and suffering both in anticipation of and following impact.
- $875,000 on behalf of the Estate of a premature baby who died at four days of life as a result of complications from intubation.
- $800,000 record settlement (Logan County, IL) on behalf of a nursing home resident who developed a pressure sore to her sacrum, requiring treatment, including multiple debridements.
Areas of Practice
Personal Injury | Medical Malpractice | Wrongful Death | Car Accidents | Truck Accidents | Work Injuries | Nursing Home Abuse & Neglect | Premises Liability | Pedestrian Collisions | Motorcycle Collisions
Let’s Talk About What Happened.
If you or someone you love has been seriously injured because of negligence or misconduct, contact Mac and the attorneys at Mixan Mahony to discuss what happened and learn more about your options.
