My aunt malti, has two sons pranay and nitesh. Pranay has a flat ,taken with loan from bank. Malti also had a flat which she has sold recently. Pranay has promised his mom, malti to transfer his flat in the name of nitesh,as first owner and malti as second owner so that pranay's wife cannot claim a share in the flat. The execution of this is decided to be done by clearing pranay's loan from bank with malti's proceeds from her flat sold. However, malti fears that her elder son pranay will betray her as soon as she clears his loan and will not give his sign( if his wife tells him to do so)for registering the flat in the name of malti and nitesh, as his wife has always done the same to pranay's family as seen from past events. Now the question is how to cover the risk of betrayal on the part of pranay.plz guide me as this is the lifetime hard earning of malti which is under risk. Plz guide if there is any alternative to this and paperwork to be done.