Call the CEO Lawyer Personal Injury Law Firm, your Nassau County Defective Product Lawyer, at 516-689-1132. For a free legal consultation with a dangerous and defective products lawyer serving Long Island, call 516-451-7900.What Do You Have to Prove in a Product Liability Case? Have you represented many vehicle owners in product liability cases like mine? What are potential issues that can come up during motor vehicle defect cases? Fill out our case evaluation form. Online to send your case details. There are a lot of ways products could harm someone and manufacturers can be liable for this. • Platinum Total Satisfaction Guarantee form is completely filled out. A certain number of products are defective or contaminated due to design or production errors.