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.It is clear that Illinois recognizes a cause of action for interference with the professional relationship between attorney and client. A valid and enforceable contract between you and another party is required to recoup for tortious interfering with a contract. (1983); Dobbs, Tortious Interference with Contractual Relationships, 34 ARK. As long as the interference results in the parties' contractual relationship being harmed, tortious interference might be in play. This occurs when a third party intentionally disrupts an existing contract between two other parties. Both involve situations where one party does something to intentionally undermine another party's business transactions or relationships. Another common business tort is the intentional or tortious interference with business contracts or business relationships. Intentional interference happens when a person intentionally causes the breakdown of a business relationship you have with a third party.