This discussion explores the validity of purchasing a property where the sale was conducted through a registered Agreement of Sale cum GPA. The original owner granted power of attorney to four individuals, who then sold the property to Person B. The key question is whether a buyer can proceed with purchasing from Person B, especially if the original owner was alive at the time of the GPA sale. The consensus is that if the GPA was valid and the original owner was alive, the sale to Person B is likely valid, but seeking legal advice is strongly recommended.