PITTSBURGH--TOP 3 CITIES NAMED "City Of The Future in North America" by Foreign Direct Land Investment magazine, an affiliate of the Financial Times, London.

It will have a much larger affect on markets that have been inundated with foreign money, and are now seeing reduced returns.

Many of the takers are foreigners.

I have seen countless people lose millions of dollars in real estate - sometimes, literally overnight.Since you are likely to take my comments with a large grain of salt, as you are doing your research and doing your due diligence, ask around for (a) specific success stories that foreigners have had with real estate which resulted in handsome profits and (b) all the failures. 

You have foreign nationals moving here that can't qualify for a bank mortgage, yet they have the cash for a down payment in that neighborhood.

Target big corporations who need the space for remote clients or consultants, investors (foreign), etc.  

They cater to lending for Canadians and Foreign Nationals, as a matter of fact, that's all they do. 

so long story short tenants dont have soc security numbers so screening them became tougher and other than not allowing foreigners to rent i dont know how you can adequately screen them

I feel your pain.Honolulu is a hot market with a lot of foreign money coming in, and that foreign money seems to be hitting the MLS.

We had to deal w/a foreign investor and we learned a lot through that process.