Trial Attorney for Catastrophic Injury & Wrongful Death in Illinois and Wisconsin
Mac Mahony is a trial lawyer experienced representing individuals and families in complex cases involving catastrophic injury, wrongful death, medical malpractice, and serious motor vehicle crashes. Practicing in Illinois and Wisconsin, Mac is known for his preparation, strategic insight, and ability to secure record-setting results at trial and through settlement.
Mac is a talented trial lawyer and has experience trying cases on both sides of the aisle. He has won medical malpractice trials on behalf of doctors and hospitals, and on behalf of patients and their families. He has a distinctive perspective into how defense attorneys and insurance companies assess risk, and he leverages that perspective to maximize his clients’ recovery.
The legal community has recognized Mac for his work on behalf of his clients. In 2023, Mac was named one of the Chicago Daily Law Bulletin’s “40 Under Forty Illinois Attorneys to Watch”, an annual award recognizing outstanding legal skill, trial success, and dedication to client advocacy. Judges and colleagues describe him as “exceptionally well-prepared,” “quick on his feet,” and “highly persuasive in front of a jury.” He has also been recognized as an Illinois Super Lawyers Rising Star (2020-2025) and Emerging Lawyer (2020-2025). These recognitions speak to Mac’s ability and reputation within the legal community.
Results
Mac has obtained multiple record-setting verdicts and settlements on behalf of his clients, including:
- $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.
- $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.
- $1,950,000 settlement on behalf of a M-28 group home (CILA) resident. In January of 2022, Plaintiff lived with epilepsy, development 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 (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 him 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.
