A key element of intentional interference with contractual relations is that the defendant intended to disrupt an established 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.If a third party unfairly interferes with a business contract or relationship and causes damage, a tortious interference claim may be a viable option. A cause of action exists for negligent interference with another's prospective business advantage if the defendant acts unreasonably and wrongfully. 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. This paper examines the issues around the legal doctrines of "Tortious Interference with an. Defamation, and was tortious in character."5. Claims for contract interference and business interference are separate but related torts. This processing of this data is therefore required in accordance with Art. It is unlawful for any person to engage in picketing before or about a residential dwelling of any individual in the City of San José.