Skilled, Dedicated and Proven Wisconsin Litigation Attorney. Groth Law Firm, S.C. concetrates on personal injury, commercial and general civil litigation. Attorney Jon Groth handles all type of personal injury cases including auto accident and truck collisions, bicycle accidents, dog bites, workers compensation and professional malpractice. Attorney Jon Groth has tried cases across Wisconsin recovering verdicts, judgments and settlement totaling millions of dollars for victims of other's negligence.