Please assist according to Islamic law

My maternal grandfather had expired 9 year ago and my age is 27 years i was staying in his house from my birth my all documents(Adhaar,Passport,Birth certifcate ,Voter ID) have the address of my maternal grandfather . Presently i m still residing there but he has four sons and they want to sell the property and my maternal grandmother and my Aunty(Unmarried) are also alive i stay with them and both are happy to me and both love me and i take care of her them maternal grandmother is 75 years old and my Aunty(Unmarried) is 42 year old.And from 15 years ago all my uncles don't stay with us . We have a different Ration card of that house on my name with name of my 3 Younger Sister and 2 Younger brother . My question is that 1) Am i a share person of that property? If i am then what will be my share percentage? 2) If my uncles who don't stay with us want to sell the property and we my maternal grandmother,Aunty,my mom, and me (If i have a share person of that property) don't want.So can we put a stay order?