About Mark Leonetti
Mark A. Leonetti has been practicing law for nearly three decades, focusing his practice on personal injury cases involving the catastrophically injured victims of motor vehicle accidents, defective products, slip and fall accidents and other personal injury litigation, as well as injuries occurring in the workplace. As an experienced and aggressive advocate, Leonetti's relentless pursuit of justice has resulted in millions of dollars in compensation collected for his clients. Among the substantial results he has achieved are a $2.2 million settlement for a client who suffered injury in a fall down a defective staircase, $1.58 million and $1.2 million in motor vehicle accident cases, and a $750,000 settlement in slip-and-fall litigation. Leonetti has also successfully represented thousands of New Jersey injured workers and their families in workers' compensation court receive the maximum benefits they deserve.
Leonetti is a partner with Kline & Specter and Cuneo & Leonetti LLC in Collingswood, N.J. Previously, for 17 years, he was a partner and plaintiffs trial attorney at Taylor, Taylor & Leonetti, PC. Earlier in his career, Leonetti was an associate at the prestigious Haddonfield, N.J., defense firm Green Lundgren & Ryan, PC, where he tried dozens of personal injury cases as an insurance defense attorney, helping to hone his litigation skills in the courtroom and later, as a plaintiffs attorney, to strategically counsel, protect and tirelessly pursue justice and compensation for his injured clients. Leonetti earned his undergraduate degree with high honors from Rutgers University, where he was a member of Zeta Psi fraternity, and his law degree from Widener University School of Law.
During law school he held internships with the New Jersey Superior Court, Judge James Rafferty and the New Jersey Appellate Division, Judge Virginia Long, who later was appointed to the New Jersey Supreme Court. Leonetti has been a long-time member of the New Jersey State Bar Association, the New Jersey Association for Justice, and the Camden County Bar Association. Leonetti is admitted to practice in New Jersey, Pennsylvania and before the U.S. District Courts of New Jersey and the Eastern District of Pennsylvania, the U.S. Court of Appeals, 3rd Circuit, and the United States Supreme Court.
Proven verdicts and settlements at Kline & Specter, PC
These results are credited to Kline & Specter, PC. A result appears under an attorney's own name only when a published source names them as counsel on the case.
A Philadelphia jury found that Monsanto failed to warn that Roundup could cause cancer and awarded John McKivison $2.25 billion. The trial judge later reduced the award to $400 million.
After Amtrak Train 188 derailed in Philadelphia in May 2015, killing eight and injuring more than 200, Kline & Specter's Thomas R. Kline led the plaintiffs' negotiations that produced a $265 million settlement fund for the victims.
A Philadelphia jury found the Hospital of the University of Pennsylvania liable for the brain injury a newborn suffered when staff delayed a cesarean section, a $182.7 million verdict that grew to a molded judgment of about $207.6 million, the largest medical malpractice award in Pennsylvania history. Kline & Specter argued and won the appeal, where the Pennsylvania Superior Court affirmed the full $207.6 million judgment in July 2025.
A Philadelphia jury awarded Ernest Caranci $175 million after finding that decades of Roundup use caused his non-Hodgkin lymphoma and that Monsanto failed to warn of the risk. Kline & Specter tried the case, the first Roundup trial in Philadelphia, and the verdict was later upheld on appeal.
A federal jury in Nevada found Ford's pickup parking brake defective and held that the company should have warned owners, returning a verdict near $153 million after three-year-old Walter White was killed by a truck that rolled in the family driveway. Shanin Specter of Kline & Specter tried the case.
Prior results do not guarantee a similar outcome. Each case is unique and depends on its own facts.
