This article discusses what constitutes wrongful interference under Arizona law. Known as tortious interference with contractual relations or business relationships, these illegal activities often cause great financial harm.To be liable, a Plaintiff must prove that the business "willfully and knowingly" committed the unfair trade practice. Tortious interference occurs when a third party disrupts an existing or prospective business relationship between two or more other parties. Wrongful interference with a business relationship requires select answer that the third party is select answer with a purpose of select answer. 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. The time limit to file a lawsuit for interference with contract is two years from when the cause of action accrues. Tortious Interference with Business Relationships. The Contract did not require the Plaintiff to own its own paving equipment. 20. As my colleague, Mr. Ninomiya, points out: intentionally damaging one's business reputation is tortious interference.