Both California contract law and tort law allow for legal action when a third party wrongfully interferes with a contract or ongoing business relationship. When an individual other than an employer intentionally interferes with another individual's employment relationship, and causes them to lose their job.Tortious Interference With an Advantageous Business Relationship . In California, interference torts have focused on the protection of economic relationships rather than familial or other personal relationships. Intentional interference with contractual relations" and "inducing breach of contract" are types of commercial torts and unfair business practices in California The District Court Did Not Err In Concluding That Cook And. Brain Were In A Romantic Relationship That Affected Cook's. Third, we note key case law addressing the state's long-arm statute in relation to tortious activity involving business persons or entities.