[deepthunder]

What's to stop Hedge Funds or other "investors" from buying these houses up?

Houses have to be owner occupied, not investment vehicles. I know, I know "what about rentals", etc? When it comes to rentals may be the Vienna mode?

[Aloisius]

As long as they're occupied, who cares who is living there and who owns it? Demand for housing gets reduced.

Owners occupying certainly doesn't make them any less of an investment vehicle.