Ban foreigners from owning houses as well.
seems like Half the houses for rent in San Jose CA are owned by Asians who live over in Asia..
I'm a little bit more slack than you. I'd start out with the restriction that only LEGAL residents may buy residential real estate. The US is one of the only countries in the world that doesn't have such a restriction in place. As a result lots of foreigners have gobbled up residential real estate in the US driving up home prices.