I am residing at Chennai, Tamilnadu. My father and mother and gradfatther are no more. My grandfathers property 4 items are yet to be partitioned among the two sons. (Expired) and one daughter of my grandfather. We are the legal heirs of the elder son (No more) of my grand father. Now me and my sisters do not know which portion of each item of property will come to us. At this point it is requested to clarify the following: (1) Whether me and one of my sister can release our rights of our share to other sister before knowing the exact schedule of property and by mentioning as one third of the share of all the described properties. i.e.whether a release deed can be made for the rights with respect to the expected share from the family properties.