Goldberg & Anor v Ng

In *Goldberg & Anor v Ng*, the High Court of Australia considered a dispute concerning the enforceability of a guarantee. The appellants, Goldberg and another, sought to recover moneys owed under a guarantee provided by the respondent, Ng, in favour of a company. The central issue revolved around whether the guarantee was valid and enforceable against Ng, given certain circumstances surrounding its execution and the subsequent conduct of the parties.

The High Court was required to determine, primarily, whether the guarantee was vitiated by duress or undue influence, thereby rendering it unenforceable. Further, the Court had to consider whether the appellants had acted in a manner that amounted to a repudiation of the underlying agreement, which might have excused the respondent from his obligations under the guarantee. The Court also examined the principles of estoppel and whether the conduct of the parties created any such bar to enforcement.

The Court's reasoning focused on the established legal principles governing duress and undue influence, emphasising the need for actual or presumed pressure that vitiates consent. It was held that the evidence did not establish the requisite level of coercion or improper pressure to vitiate the guarantee. Furthermore, the Court found that the appellants' actions did not amount to a repudiation of the agreement, and therefore, the respondent remained bound by his contractual obligations under the guarantee. The principles of estoppel were also considered, with the Court concluding that no such estoppel arose on the facts presented.