My piece of advice would be to make sure you have a great agent in your corner to help you assess the market, make informed decisions, etc. having a good agent can be day & nights difference when it comes to your experience.

So, when investing in areas they don’t really know, investors should research the different property Class submarkets.

So, that makes a BIG difference in How you scale and what your personal “upper limits” are.  

Each municipality is different and what's allowed will be based on your exact zoning.

That was just one of my properties and I now have multiple in different vacation locations.  

We have traveled worldwide together on cruises and various different seminars from various different speakers and he smarter than the average investor, going on the type of trips with speakers that he and I have gone to has certainly helped both of us he's outstanding.Dr Butler Portland Oregon 

One says the interest he receives IS A DIFFERENT KIND OF INTEREST than the interest he pays?  

Too much time and when the difference is only 20-30% the banks won't bother with a short sale.- The signed P&S and the arears cleared up will stop the foreclosure.  

I don't know about the different type of work permits.

Each insurance company may have a different way they calculate and pay for dwelling coverage.