Instructions may be entered in the Filing Comments section at the time of filing. 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. Tortious interference with a contract occurs when a third party intentionally damages the contractual between two parties. That interference can occur when an outside party purposefully leads someone in a business agreement to break the terms of the agreement. To set up a meeting regarding tortious interference, please call us in Houston at 713-804-9318 or complete our contact form. Get Help From Noncompete Attorney Robert Wood. What are the legal elements required to prove tortious interference in a will or trust dispute?