A directs B to sell A rsquo s estate B boys the estate for himself in the name of C A on discovering...........

A directs B to sell A’s estate. B boys the estate for himself in the name of C. A, on discovering that B has bought the estate for himself, may repudiate the sale:

If he can show that B has dishonestly concealed any material fact

If he can show that the sale has been disadvantageous to him