We are a family of father, mother, myself (son), a brother (who passed away in 2008) and four married sisters. My father owns a flat in Mumbai. When he passed away in 2012, his will (unregistered) transferred 94% of the ownership to me, and 1.5% to each of the 4 sisters. How do I transfer this flat on to my name? The nomination is in my and my deceased brother's name.