Quasi contract is another term for a contract implied in law. A contract implied in law is where “a promise is imputed to perform a legal duty, as to repay money obtained by fraud or duress.” Hercules Inc. v. United States, 516 U.S. 417, 424 (1996).
A quasi contract is a fiction of law. No contract actually existed. In other words, there was no acceptance of an offer.
A quasi contract is often a doctrine that courts draw from when no other legal doctrines are available. Quasi contract is a relatively weak doctrine compared to the stronger equitable doctrines of quantum meruit, quantum valebant, unjust enrichment, and promissory estoppel.
This article was written by attorney Aaron Hall.