If a person improperly interferes with another person's contract, then the wrongdoer will have to pay money damages to the injured person (i.e. Tortious interference occurs when a third party disrupts an existing or prospective business relationship between two or more other parties.75 LH employee Vicki Gainer engaged in tortious interference with a contractual. Wrongful interference with a contractual relationship requires the existence of , third party , and . Known as tortious interference with contractual relations or business relationships, these illegal activities often cause great financial harm. In these cases, plaintiffs use interference claims as a source of right within a contractual relationship. 1. Expanding Remedies for Breach. Wrongful or tortious interference with contracts happens when a thirdparty intentionally causes a contracting party to commit a breach of contract. Remick for breach of contract. 2. Case opinion for US Supreme Court BRIDGE ET AL. v.