In the scenarion the 5000 were renting houses from the 500, so probably the outsiders would buy those properties first. The 500 are also the most likely not to

In the scenarion the 5000 were renting houses from the 500, so probably the outsiders would buy those properties first. The 500 are also the most likely not to be local or own the land (which means a single sale can convert a low cost apartament building in a mansion). Also the reverse is possible...