The defendant intentionally and unjustifiably induced the person or business you had contracted with to breach that contract. One type of business tort is known as tortious interference with contract.Under Illinois law, the elements of a claim for tortious interference with a contract are that: • The plaintiff and a third party entered into a valid and. Wrongful interference with a contractual relationship occurs when:1) A valid and enforceable contract exists between two parties. A valid and enforceable contract between you and another party is required to recoup for tortious interfering with a contract. Another form of unfair competition is tortious interference with a company's contracts or its business expectances. Unfortunately some employers and managers interfere with an employee's employment relationship out of sheer malice. It is a common example of a third-party tortious interference claim. No. In order to succeed in a case for intentional interference you have to meet six criteria: 1. Intentional interference happens when a person intentionally causes the breakdown of a business relationship you have with a third party.