Non est factum

Non est factum is a legal doctrine utilized in Jamaica and other jurisdictions to address situations where an individual seeks to avoid the consequences of a contract on the grounds that they were mistaken about the nature or contents of the document they signed. This principle applies when a person signs a document under the belief that it represents something entirely different from what it actually is, due to a fundamental misunderstanding or misrepresentation. In the context of Jamaica, this doctrine becomes relevant in real estate transactions, where a party might claim non est factum to void a contract if they were misled about its terms or if the contract significantly deviates from their intended agreement. For instance, if a property owner mistakenly signs a deed of sale thinking it is merely a document for a different transaction, they could invoke non est factum to challenge the validity of the deed. Courts evaluate such claims based on the extent of the misunderstanding an…