A "migration" of 10,604 people left the state of ohio last year.  

We've migrated from creating our own notes to buying partials.

As a Canadian from Ontario, I am also interested in doing real estate investment on the side in the USA with plans to migrate there.

I believe the main change will be that people will migrate to the areas where they can afford to buy.

Jonathan,In general, you should expect SFRs to appreciate more than small MFs (duplex, fourplex), that said, why folks migrate to small MFs from SFRs is cash flow (yield) is typically better per $ spent.  

As you migrate from most senior (debt) to most junior (equity) parts of the capital stack the return requirements go up.  

We fish the Bitterroot and other rivers a few times a year and Hamilton weather is not to bad.my main point is a lot of these articles are based on % growth not actual numbers and when you start with states with such low populations does not take much in migration to move the % needle..   

In reality, no one knows (and I certainly don't), but the data doesn't point to any looming crashes.Here's a great snapshot comparing the market today to the last bubble:Comparing the Last Denver Bubble to Today2002-20062012-2016Homes for Sale at EOY (End of Year)5 year average of 22,2585 year average of 5,726Average Months of Inventory6.1 months1.8 monthsNew Homes BuiltTotal of all 5 years 93,000Total of all 5 years 30,000Cumulate Job Growth85,892180,708Net Migration to Denver24,000190,000Homes Built : Migration3.9 homes / 1 person0.2 homes / 1 personResultBubble + correction due to too much inventory and loose lendingScarce inventory drives price increasesData Source: Lonie Glessner at NOVA Home Loans

You already see the migration within the US from the North to the Sun Belt.

Regardless of what method or treatment you choose to employ (I'm talking to everyone here) you MUST do it under containment to make sure that you don't allow spores to migrate to other unaffected areas.