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 with business relations involves a third party using false claims against a business in order to drive business away.To set up a meeting regarding tortious interference, please call us in Houston at 713-804-9318 or complete our contact form. A "tortious interference" is when someone interferes with your existing contract. You can file a tortious interference lawsuit if a third party disrupts your business contract or hinders your professional relationship. Our breach of contract lawyers can help you and your business prevent or mitigate any resulting damage from a breach of contract. Wrongful or tortious interference with contracts happens when a thirdparty intentionally causes a contracting party to commit a breach of contract. Wrongful Interference with a Business Relationship. That interference can occur when an outside party purposefully leads someone in a business agreement to break the terms of the agreement. The first, under tort law, is against the third party who interfered with the business relationship.