The trials of buying a house in Ghana

For several months now I have been trying to buy a house so that I can get a rental income as money in the bank gets so little interest.
There are lots of houses on the market but finding one that has the necessary documentation is proving very difficult. So far we have been shown documents for the wrong house with a name pasted on and photocopied, documents which claim to show that the person owns the land but it is not recognised by the authorities and a failed search at the Lands Department because the owners had mortgaged the land.
We finally thought we had cracked it when we saw just the house we wanted and the necessary
documentation was held by the bank as the owner had taken a loan using the house as collateral. However when we went to try and view the house we were told there was a tenant and it was too short notice. We then went to talk to the bank and were willing to take the sale to the next stage so sent a sale and purchase agreement to the owner in America mentioning the tenant. He was adamant there wasn't a tenant so we then arranged with his brother here, who had Power of Attorney, to view the house. We organised a time and duly turned up - but the brother didn't!
After the shock of finding out the house was definitely tenanted the brother in America finally decided he would sell the house to someone else!
This week we tried another route - an auction! It was a nice house in a nice area and had been foreclosed. Unfortunately there were caretakers living there - an old couple - who looked very worried about losing their home. We missed out on the auction and I don't feel too bad as I wouldn't have liked to have to force people out on to the street.
Now it is back to the drawing board and we are just waiting for the perfect property to appear!