my father purchased a property which is on leasehold in new delhi, as agreement to sale is in favour of my mother's name and General Power Of Attorney is by my father's name. My father got expired and we are selling this property so is there any procedure to Transfer the GPA to any of the family members as my mother is the holder of Agreement to Sale and she's alive or we have to find out the previous owner and again request himto singn for new GPA in favour of me.