Similar personal injury attorneys in Chicago
Prior results do not guarantee a similar outcome. Each case is unique and depends on its own facts.
About John Kalantzis
Born and raised in the Chicagoland area, John grew up working in his family's restaurant and then stayed local attending both Northwestern University (B.A.) and Notre Dame Law School (J.D.). As a first generation Greek American, John witnessed the difficulties that immigrants can experience while adapting to a new culture. He also experienced the importance of community in helping people to assimilate and understand how to become part of that new culture. He is fluent in Greek and has been active in the community through his volunteer work for his church and other Greek American community organizations.
John serves as a board member for the National Hellenic Museum, the only public history museum dedicated to preserving the story of Greek Americans while sharing Greek history, art and culture. John has also been involved with local educational groups as a way of giving back and advocating for the role education provides in enriching and improving one's life.
John is involved in numerous professional organizations, including the American Bar Association and American Association for Justice (AAJ). He is a member of the Assembly for the Illinois State Bar Association (ISBA) where he also serves on the Tort Law Section Council and on the Bar Elections Supervision Committee. John is also on the Judicial Evaluation Committee of the Chicago Bar Association (CBA) and on the Judicial Evaluation Committee of the Hellenic Bar Association.
John focuses on aviation law and has a wealth of trial experience in motor vehicle collisions, premises liability, and wrongful death. He is also skilled in alternative dispute resolution. Currently, John is part of the team representing the families of the victims of the crash of Ethiopian Airlines Flight 302 in their lawsuits for wrongful death against Boeing.
John has also represented family members of victims of car crashes in wrongful death cases as well as those who have suffered serious and life altering injuries. His experience in these areas has exposed him to the suffering of victims of negligence and spurred him to fight on behalf of injured plaintiffs and their families. John treats every client with the same care he would offer his own family and battles the profit-driven corporations and insurance companies to ensure that his clients receive the compensation they deserve.
Proven verdicts and settlements at Clifford Law Offices
These results are credited to Clifford Law Offices. A result appears under an attorney's own name only when a published source names them as counsel on the case.
Robert Clifford co-led the families of 68 people killed when American Eagle Flight 4184 iced over and crashed near Roselawn, Indiana, to a record $110 million settlement and an apology in open court.
A Cook County jury found plastic surgeon Dr. Ayoub Sayeg liable for the death of Idalia Corcoles, a 39-year-old mother of four who bled to death after liposuction and a tummy tuck, in a case that produced a $66.262 million judgment.
Clifford Law Offices secured a $60 million settlement for Sarah Grasser, 31, left paraplegic when another driver swerved to avoid a deep pothole in an I-55 work zone and struck her car, rolling it into a ditch.
A Cook County jury returned a $101 million verdict against West Suburban Medical Center after staff ignored fetal monitoring for six hours during labor, though a pre-verdict high-low agreement limited the family's recovery to $50 million.
On June 29, 2026, a Cook County jury returned a $50 million verdict against First Ascent Climbing and Fitness for the sexual abuse of an 8-year-old boy by an older camper at its Peoria summer camp in 2022. The award was $49 million in compensatory damages and $1 million in punitive damages. The jury found the company negligent and guilty of willful and wanton misconduct. The company has said it is weighing an appeal.
Prior results do not guarantee a similar outcome. Each case is unique and depends on its own facts.
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Prior results do not guarantee a similar outcome. Each case is unique and depends on its own facts.









