Both California contract law and tort law allow for legal action when a third party wrongfully interferes with a contract or ongoing business relationship. A tortious interference lawsuit allows you to sue the noncontracting person and recover damages for intentional or negligent acts that caused economic harm.California courts have long recognized causes of action for tortious interference with contract and tortious interference with prospective economic advantage. This blog talks about the Cal jury instructions and what a Plaintiff has to prove to meet their "burden of proof" in a civil case. Respected Bay Area Attorneys Provide Wrongful Termination Defense. Seasoned Oakland lawyers aid employers in lawsuits and state investigations. Tortious interference refers to the action of a third party who causes harm to an ongoing business arrangement. Wrongful termination claims are also common, and they refer to employer overreach in relation to at-will employment. Under the dominant view, the elements of the tort are a knowing and improper interference in the contracts or business relations of another. In California, the relationship of employer and employee is generally "at will.