Attorney John W. Zotter of Zimmer Kunz in Pittsburgh represented two trucking companies that were involved in separate multivehicle accidents in the summer of 2011. The liability factors and damages were similar in both cases, Zotter said, but one accident occurred before a law was changed limiting joint and several liability for defendants and the other accident happened after the change was enacted.

“If the first accident had occurred a couple of weeks later, the settlement amount probably would have decreased by 60 to 70 percent,” Zotter said.