If a third party unfairly interferes with a business contract or relationship and causes damage, a tortious interference claim may be a viable option. Tortious interference is a legal theory intended to allow parties to contract to fulfill contractual obligations without thirdparty interference.Tortious interference with business relations involves a third party using false claims against a business in order to drive business away. A "tortious interference" is when someone interferes with your existing contract. Wrongful or tortious interference with contracts happens when a thirdparty intentionally causes a contracting party to commit a breach of contract. Our Houston contract litigation attorneys specialize in resolving breach of contract disputes in Texas. Since contracts are legally binding, laws exist to prevent wrongful, or tortious, interference with existing contracts. No. In order to succeed in a case for intentional interference you have to meet six criteria: 1. Serving the greater Houston, TX area. In the absence of a special relationship.