Is it safe to buy an RDP house without a title deed? The short answer The whole question I want to buy an RDP house but the seller has only a letter of authority from the court to show that she owns the property. She said the house belonged to her late son who has no wife and children. She showed us a letter of authority, a death certificate and a letter from the municipality. How safe is it to buy the property? The long answer A letter of authority gives the mother permission to sell the house, and I presume the letter from the municipality states that there is no objection to selling the house, but the problem is that the title deed is the only legal proof of ownership, and it needs to be transferred to your name through the Deeds Office.