Mentink v Olsen

The appeal in *Mentink v Olsen* concerned allegations of unconscionable conduct and undue influence arising from a transaction where the respondent, Ms Olsen, transferred property to the appellant, Mr Mentink. The primary judge had found that the transaction was unconscionable and that Mr Mentink had taken unfair advantage of Ms Olsen's special disadvantage.

The central legal issues before the Court of Appeal were whether the primary judge's findings of unconscionable conduct and undue influence were supported by the evidence, and whether the transaction, which involved a gift of property, could be considered fair, just, and reasonable in the circumstances.

The Court of Appeal affirmed the primary judge's findings. It was held that Ms Olsen suffered from a special disadvantage, specifically a combination of her age, her reliance on Mr Mentink, and her lack of independent advice. The court found that Mr Mentink was aware of this disadvantage and had exploited it to obtain a benefit. The principles of equity regarding unconscionable conduct were applied, emphasizing the need for a party to refrain from unconscientiously taking advantage of another's special disadvantage. The court also considered the elements of undue influence, finding that Mr Mentink had exerted such influence over Ms Olsen that her free will was overcome.

Consequently, the appeal was dismissed, and the appellant was ordered to pay the respondent's costs of the appeal.