Having never actually worked in the real world, and always wondering "how to make money" in theory ...
why hasn't property prices gone back up?
it seems that in these days, rich people (like those with dynasty wealth) can easily buy up entire blocks ... wait until prices go back up, and rent them out in the future?
like in the biblical story, when Egypt had the huge food famine, the rich (Pharaoh) bought up all the poor people's land
except that in this case, why aren't the rich and wealthy buying it up? seems like a beautiful 'hack' in the classical sense
Risks:
+ Property prices fall.
+ Competitive options for housing in vicinity of your property decline in price, causing rent you can charge to fall. For example: if you can buy a modest house in Detroit for $10,000 why would any worthwhile prospective renter pay you the $500 a month you need to cover the mortgage and maintenance on the modest home you bought back when Detroit had viable industries in it?
+ Can't find a tenant, get to eat mortgage.
+ Renters trash house, enjoy $20,000 repair bill.
+ Renters stop paying rent. Enjoy eviction process.
+ Your local government decides evil landlords are exploiting poor people to make money, institutes rent control. Enjoy low rents, impossibility to unload property on another sucker, etc.