Our New York City business litigation lawyers handle tortious interference with business cases for business of varying disciplines and sizes. A tortious interference with contract claim is only proper when a defendant causes a third-party (not the plaintiff) to breach the underlying contract.Please contact us online or call us today at (212) 537-6612 for an initial phone consultation with a contract litigation attorney in New York City. The statute of limitations for a cause of action for tortious interference is three years. According to law, when a tort is committed, the victim has the option to file a lawsuit against the alleged perpetrator. Why It's So Hard to Win a Tortious Interference With Contract Claim Under NY Law. The plaintiff failed to state either a cause of action for tortious interference with an existing contract in the original and amended verified complaint. Further, under New York law, third parties cannot use unlawful means to interfere with an existing or potential contract. Further, under New York law, third parties cannot use unlawful means to interfere with an existing or potential contract.