Both California contract law and tort law allow for legal action when a third party wrongfully interferes with a contract or ongoing business relationship. To submit your claim via these measures, please complete a Claim for Damages form (PDF) and return it to us along with all supporting documentation.Tortious interference refers to the action of a third party who causes harm to an ongoing business arrangement. IDCA's claim that it was privileged to interfere with Diversified's business because it was a 50 percent shareholder in the company is without merit. Facing tortious interference in California? LawPLA's attorneys can help you prove your case and seek damages. And Bruce Eliot Fishman as to the causes of action in the Complaint . Name. Confidential, secure access. Switch plans or cancel any time. (Complete and Unabridged).