Daniel, a property developer, is selling a house to Peter, who is 25 years old and intellectually impaired. Houses of an equivalent size and quality in the area generally go for about half the price that Daniel has negotiated with Peter.

Peter has paid the deposit and waived the cooling off period under the contract. Peter's cousin, Jeremy, learns of the deal and is very concerned. Jeremy is Peter's legal guardian. What can he do legally to help Peter?

Reference:

Conveyancing Act 1919 -Division 8 Sales of Residential Property.

Contracts Review Act 1980 -Part 2 Relief in Respect to Unjust Contracts.