My mother-in-law (widow) died last December'2020. She had only two daughters, both died. While I live in Kolkata with my family, my sister-in-law always lived with her mother in my mother-in-law's hose along with her family (with son and husband, and after her divorce in 2008, with second husband). Her elder daughter's son is 21 years old (from her first marriage), who, at present, lives alone in my mother-in-law's house in Raigang. he made his step father out of house after her mother's death two years back. At present, he is not willing to divide the property, as he knows well, I stay in Kolkata, around 400 km. from raiganj and can not look after regularly. I have twin sons (minor ten years old) living with me. I also lost my wife some years back and did not marry again. My question is, what will happen to my mother-in-law's properties? Won't my sons' have claim over that property? And if to claim, how to claim the same?