This would still allow the super rich to take over a town. So, another idea: A second home cap, which must not be exceeded. Say a village decides they can handle 1% of their houses owned by the 1%, but not more. Once these two houses found their part-time inhabitants, #3 must wait, or go somewhere else. A bit like garden plots, or boat piers. Naturally, this would also drive prices due to scarcity.