1.Ur mother, two sons, one daughter eligible for 1/4 share each
2.U ahve to legal heir certificate from Tahsildar of ur taluk
3.If you want to transfer the entire property to anyone's favour other can execute release deed.
From ur question, 1 is not necessary, 2 can be done.
stamp duty and fee concession is available to you for which u have to consult local lawyer or the registrar of ur area