Based on my goals I believe that real estate is the perfect vehicle for getting me to destination I travel.I am looking to create several "passive" streams of income that will generate monthly income of CAD$5,000 (cash flow). 

I have two goals for real estate:diversify my existing portfolio for tax efficient long-term growthprovide a somewhat passive income stream for a (hopefully) early retirement. 

I’m considering picking up two duplexes being sold by the same seller and was wondering if I could put them both on the same mortgage as a 4-unit dwelling for the purposes of minimizing my number of residential mortgages. 

Also, most dwelling policies don't require that your prior policy be in place for more than a year. 

Think about ways you could build a stream of income with social media.

Lastly, I won't lose my whole income stream as it will be a rare occasion when all three roomates move out at once. 

This is becuase they are valuing the bldg based on the income stream the bldg provides. 

Dwelling policies are your best bet, but you'll want to focus on the companies that provide that coverage. 

Here, specifically are the rules from the City of Scottsdale site:Vacation Rentals & Short Term RentalsVacation rentals or Short term rentals are dwelling units offered for a rental term of less than 30 days to transient guests.

My understanding is the former “whole note” holder retains the mtg/security instrument and bought only the “income stream” without an assignment of any mtg/security.  ....so my assumption is that you could not foreclose, but only your seller of the partial.....but I could be completely wrong.