can I counter sue for libal and court cost

Hi being sued in broward because vechile that I sold was impounded by a repo company based on a invalid title from another state. I purchased the car from a tow yard. It looks like the previous owner hadn't paid the loan holder and abandoned the car. The tow yard followed all of the laws to be able to sell the car. A new title was issued to me here in FL and I sold the car. The car was repossessed by a company from the new owner. Initially the police said the issue of ownership was a civil matter. A few months later they forced the company to return the car to the owner that i sold the car to. The owner is now suit me. The owner already won a case against the repo company since they basically stole the car when they repossessed it. Can I countersue for libal and court cost if the case is found in my favor?