Setlement deed

You, your brother and your mother are the legal heirs to your father, you three people can give JV with the builder and for your brother, mother and you each for your 1/2 share with the builder.

Out of your mother's share of three flats, she can transfer two flats one to each of you by executing a registered settlement deed.

As a matter of fact after you and your brother executed a registered release deed relinquishing your rights in the property your became an absolute owner of entire property.

Therefore now she has to transfer the proposed flats to both of you by executing a registered settlement deed.