Canada's welcoming immigration policy, highly-rated education system, and our government support system provide the perfect setup to entice international students. 

Immigration:I have read that investing in real estate as a non-resident may cause issues at immigration levels (they don't like it)? 

You had a big influx of immigrants at about that time- Polish, Italian, Irish, etc.

Milwaukee, on the other hand, retained its character as a city that was built on Lake Michigan shipping with large populations of German, Slavic, and Italian immigrants.

My situation unfortunately disqualifies me for a conventional loan at the moment, as I only have 1 year of work history/tax returns in the US.I was previously employed in the UK, however due to a 1 year gap in employment history (whilst I was going through the immigration process and was legally not allowed to work) my lender has told me they will not be able to complete the loan.This leads me to commercial loans!

I am also an immigrant to this country.

Essentially what @Omar Khan is trying to explain is that the high prices are due to very high demand and the only way that the market will collapse is if the demand disappears, which I cannot see happening with our high immigration rate and while ever everyone still only wants to live in the capital citiesDon't be fooled by the media speculation and articles posted on news sites etc about the "bubble burst" and "housing crash". 

Threats to call the police, Immigration work well. 

With increased security checks and immigration issues in the United States, what do I need to tell the border officers when I cross the border (by car)? 

My physician uncle, an immigrant who moved to the KY 30 years ago, complains how his med interns/students are leaving KY to go to other parts of the country where there will make less money.