Both California contract law and tort law allow for legal action when a third party wrongfully interferes with a contract or ongoing business relationship. Tortious interference refers to the action of a third party who causes harm to an ongoing business arrangement.California Supreme Court Clarifies Pleading Requirements for Claims of Tortious Interference with AtWill Contracts. Click to share this page The business litigation lawyers at our office can help in interference with contractual and business relations cases. California courts have long recognized causes of action for tortious interference with contract and tortious interference with prospective economic advantage. Wrongful Termination Claims: The statute of limitations for wrongful termination claims in California is generally two years. There are many circumstances where an employer would sue an employee. In a separate part of its opinion, the Court also held that a claim for tortious interference with an atwill business contract (i.e. County of Los Angeles (1995) 38 Cal.App.