Gallagher v Durack

In *Gallagher v Durack*, the High Court of Australia considered a dispute concerning the validity of a mortgage over certain land. The appellant, Gallagher, sought to have the mortgage declared void, alleging it was executed under duress. The respondent, Durack, sought to enforce the mortgage.

The central legal issue before the High Court was whether the mortgage was voidable on the grounds of duress. This required the court to determine the nature of duress that would vitiate a contract, specifically whether it extended to illegitimate pressure that was not unlawful or unconscionable, and the effect of such duress on the enforceability of the mortgage.

The High Court held that duress, in the context of vitiating a contract, requires illegitimate pressure. While unlawful threats or unconscionable conduct can constitute illegitimate pressure, the court clarified that the pressure must be such as to amount to a coercion of the will, such that the party did not exercise a free will in entering into the contract. In this instance, the court found that the pressure exerted by the respondent, while perhaps commercially disadvantageous to the appellant, did not amount to duress that would render the mortgage voidable. The appeal was dismissed.