Sealed and Delivered: A Theory of Unilateral Transfer at Common Law

Some view the sealed instrument as a relic of the common law that is incompatible with modern contract law theory. However, the fact remains that the seal is a valid method to create a binding agreement in Canadian law. This article proposes a theoretical justification of the seal that better places it within contract theory. The author argues that instead of understanding seals as analogous to a consideration-based promise, we should understand seals as analogous to an executed gift. Through this analogy, the seal can be understood as an agreement that creates an immediate and unilateral transfer of rights.