@Andrew Johnson well in Sunny Portland Solar while used is not all that popular. but if I was buying a SFR say in Vegas I would strongly think about it..

1st investment on a Foreclosure of a 1 detached home in a 8 house complex in Santa Ana, Southern California, 2000sqft (larger than average for popular Southern California), built 1994, 4bd/3bt, very convenient to multiple markets, stores, one of the best I've seen, 70% Mexician population, B neighborhood. 

In fact, our place is so popular now, Airbnb is using the listing for our place in their own ads!

If each family sets up sale items at their own home, some sales may get less traffic than others.Decide on a DateYard sales are most popular in the spring or early summer because of the chance for a sunny day, but you may want to have a fallback weekend or two.

SFRs have gone through a massive appreciation cycle as well. 1031ing is popular. 

Even VRBO and AirBnb vasicallate in popularity from marketing to market. 

@Joe Papp I have housed hacked before and had several "short term ish"  military roommates before AirBnB or other vacation rental websites were popular. 

The areas you've listed are very popular and pretty expensive in my opinion compared to other areas in Charlotte and market is pretty hot right now.

Sunriver is a very popular vacation destination, much like Tahoe.

Quiet town, apartment close to a school so it has been popular with school teachers.