Property Transfer

Hello Sir/Ma'am, By Profession I am a Software Developer. My Grandfather & Grandmother both died. My Grandfather neither my Grandmother have made any property will, they have 3 sons. my father is a elder one and have two other uncles. we all Live in Mumbai. We have two house in Mumbai. With mutual discussion and problems they decided that my father will take one house, my elder uncle will take second house and to younger uncle they both will pay 7 lacs each i.e total 14 lacs as property settlement. now how can I go further legally to transfer that house on my fathers name after giving 7lacs to my younger uncle. what are the documents I have to make and where should I take younger uncle,elder uncle signatures and one witness signature. Because I want to do everything legally with a proof as I don't trust my uncles, after settlement they might create problems so in order have a proper legal documentation and proof I will be at a safer side. Please guide me with the legal process. If possible please share your contact Number.