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. That interference can occur when an outside party purposefully leads someone in a business agreement to break the terms of the agreement. Wrongful or tortious interference with contracts happens when a thirdparty intentionally causes a contracting party to commit a breach of contract. A "tortious interference" is when someone interferes with your existing contract. Has a Third Party Interfered With Your Business Contract? Tortious Interference: Contracts vs. Business. An atwill employment agreement was the subject of a similar claim in a case decided earlier this year. No. In order to succeed in a case for intentional interference you have to meet six criteria: 1.