That is why proper methods should be made to protect the house, i believe that why you see a lot of houses with a big painted sign at the front saying " this house is not for sale "My brother is an estate and property sales representative, he has been selling housing properties for over 8 years and I can say he is really doing well for his profession.
I introduceto him a new method of making is work more easier which is the internet but he refused and said internet can never be has fast has selling houses and properties the old way. He continued by saying I should be careful with displaying my properties online cos we now have fraudsters who uses another person's property has their own and sells it without the owner knowing.
Never have i witnessed this that's why I came with the question here, have you witness people who claims another person's properties has theirs and sell it without the original owner knowing?
I have seen a case whereby a man brought a house only to discover later that who he brought it from was not the owner and the owner and the documents given to him for the house was not from the owner as well