Second, that the defendant had knowledge of the facts giving rise to the plaintiff's contract right with (name other party to contract). Wrongful or tortious interference with contracts happens when a thirdparty intentionally causes a contracting party to commit a breach of contract.We argue that the tort should be repudiated. Civil Remedies for Interference With Property. Trespass to chattels and conversion are both intentional torts. And tortious interference with contract. If the facts are disputed, the plaintiff bears the burden of proving those facts in court to succeed in the claim. And tortious interference with contract. Courts base this liability upon the duty imposed upon a party when the party engages in a course of conduct from which some injury to others is foreseeable. Hauser's lifetimefor tortious interference with an expected inheritance.