What should a daughter do who lives in an inherited house, legally owning only half of it, while the rest of the heirs demand to sell the entire house, but the mother insists on holding onto the house?

The house is jointly owned by your grandmother and her sister. Your grandmother's compensation to her sister for her share is not legally recognized due to the lack of documentation, witness testimony, or acknowledgment by the heirs. Therefore, the matter must be referred to the Sharia courts.