Intentional IWPEA occurs when a defendant interferes in an economic relationship between the plaintiff and a third party. Both California contract law and tort law allow for legal action when a third party wrongfully interferes with a contract or ongoing business relationship.When an individual other than an employer intentionally interferes with another individual's employment relationship, and causes them to lose their job. California Supreme Court Clarifies Pleading Requirements for Claims of Tortious Interference with AtWill Contracts. Click to share this page Find the best employment attorney serving Hennepin County. Successfully represented contractors in disputes arising out of federal contracts with the Army Corps of. Engineers. Relationship between California Plaintiffs and purchasers of corn. Justia U.S. 8th Circuit Court of Appeals Opinion Summaries.