MacDonald v Robins

The case of MacDonald v Robins concerned an appeal from the Supreme Court of Western Australia to the High Court of Australia. The dispute arose from an unregistered lease of Crown lands granted by the appellant, MacDonald, to the respondent, Robins, and his brother, who were carrying on business in partnership. The lease contained an option for the lessees to purchase the demised lands, subject to the due observance and performance of the lease covenants. Robins, after dissolving the partnership and acquiring his brother's equitable interest in the lease and option, purported to exercise the option by giving notice to MacDonald. MacDonald contended that the option was not validly exercised, arguing that Robins' acquisition of his brother's interest constituted a breach of a covenant against assignment and that the notice of exercise was insufficient.

The legal issues before the High Court were whether Robins' acquisition of his brother's equitable interest in the lease constituted a breach of the covenant against assignment, and if not, whether the option to purchase had been effectively exercised by Robins' notice. Specifically, the court had to determine if an equitable assignment of a co-tenant's share in a lease, coupled with the co-tenant's retirement from possession, breached a covenant prohibiting transfer, assignment, subletting, or parting with possession. Furthermore, the court considered the interpretation of the lease's definition of "lessees" and whether it permitted an individual lessee to exercise the option, or if the option, as a continuing offer, required acceptance by both lessees jointly or with the implied authority of both.

A majority of the High Court, comprising Dixon C.J. and Webb J., held that Robins had effectively exercised the option. Dixon C.J. reasoned that an equitable assignment of a co-tenant's share, as opposed to a legal assignment, did not breach the covenant against assignment. He further concluded that Robins, as the equitable assignee of his brother's interest, occupied a position enabling him to exercise the option so as to bind both himself and his brother, and that the notice given, which indicated reliance on the transaction with his brother, demonstrated he was acting under his brother's implied authority combined with his own right. Webb J. found that the definition of "lessees," which included "each of them," meant the option was a single option exercisable by either lessee, and that the notice was sufficient. Taylor J. dissented, agreeing that the equitable assignment was not a breach of covenant and that Robins could have required his brother to join in exercising the option or acted in his brother's name, but he found that Robins had purported to act for himself alone, not on behalf of both lessees, and therefore the option was not effectively exercised.

The appeal was dismissed with costs, affirming the decision of the Supreme Court of Western Australia.