An unfair business practice includes deception, fraud, misrepresentation, and unjust actions. Such unlawful conduct usually occurs against consumers.California courts have long recognized causes of action for tortious interference with contract and tortious interference with prospective economic advantage. If the defendant was a competitor regarding the business involved in the contract, his interference with the contract may not be improper. Our business litigation lawyers and attorneys have helped numerous businesses who have become victims of interference with contractual and business relations. In law, conversion is a tort that deals with the wrongful interference with goods. Both California contract law and tort law allow for legal action when a third party wrongfully interferes with a contract or ongoing business relationship. The experienced business torts lawyers in Los Angeles at MNB Law Group will help you navigate the complexities of your case. Step 1: After completing the Civil Case Cover Sheet (Judicial Council form CM-010), find the exact case type in. This form is required pursuant to Local Rule 2.3 in all new civil case filings in the Los Angeles Superior Court.