A, B, C and D contributed to purchase Yellowacre, which was eventually conveyed into the names of all of them after they had paid the full purchase price. A deposited the title deeds of Yellowacre with Loans Bank Lid as a security for a loan. B offered to sell his interest to C, who accepted the offer but disputed the price. B and C could not agree on the price before the death of C, who left all his property by will to his son, Jack. D inquired from Leo if he knew of any way in which he could get his share of Yellowacre. Jack then asked D there and then to sell his share to him, if he could get Yellowacre divided so that he would get his separate lot. Advise the parties