obligationes quasi ex contractu

/obbgeyshiyowniyz kweyzay eks ksntr?ekt(y)uw/

Often persons who have not contracted with each other, under a certain state of facts, are regarded by the Roman law as if they had actually concluded a convention between themselves. The legal relation which then takes place between these persons, which has always a similarity to a contract obligation, is therefore termed obligatio quasi ex contractu. Obligations in the nature of a contract called quasi contract or implied in law contract.

See contract.

Such a relation arises from the conducting of affairs without authority (negotiorum gestio) or unauthorized agency; from the management of property that is in common when the community arose from casualty (communio incidens); from the payment of what was not due (solutio indebiti); from tutorship and curatorship (tutela and euro), resembling the relation of guardian and ward; from taking possession of an inheritance (additio hereditatis and agnitio bonorum possessionis); and in many other cases.