Both California contract law and tort law allow for legal action when a third party wrongfully interferes with a contract or ongoing business relationship. Disruption of the relationship; Harm to the plaintiff; and.A causal connection between the wrongful act and the harm. Defendant intended to disrupt the performance of this contract or knew such disruption was certain or substantially certain to occur. Plaintiff was harmed. The employee must have been employed full-time in the Contra. Costa Community College District for at least ten (10) years in a faculty position. 14.1.4. In the course of the case, the courts will require that the initial complaint state the amount of damages suffered. Contra Costa County Dept. When a person or business intentionally damages a business relationship or a contract you have with another business that caused or may cause economic harm.