Housing demolition in Shanghai depends on the real estate license or household registration book.

Hello! First, the house relocation is based on the house certificate, but you must refer to the household registration book, otherwise how can you know that it is your house, and the second certificate and ID card are complete. Second, this house is grandpa's property right, and it is also his legacy. All the children have one, and of course, the mother's sister should also have one. Third, if the house demolition is a monetary housing allocation, and you need to buy a house again, you can discuss who to write. But this issue is very sensitive, please consider people's feelings and don't make conflicts.