A quasi-contract, also called an implied-in-law contract,'s a legal substitute for a contract. A quasi-contract's a contract that should have been formed, even though in actuality it wasn't. It's used when a court wishes to create an obligation upon a non-contracting party to avoid injustice and to ensure fairness. It's invoked in circumstances of unjust enrichment. It "isn't legitimately done, but the terms are accepted and followed as if there's a legitimate contract." Elements According to th… (More on Quasi-contract)