. - Be careful not to let the "tax tail" wag the dog.

As an aside, we purchased using a bird dog.  

Views are 4X and conversion is double over my 2/1. 2- and 3- bedrooms are the squishy middle with tons of competition, but when the potential guest needs to sleep a large group the pool shrinks dramatically. 

multiple streams of income and not just one, for starters -- Robert Kiyosaki, Warren Buffet, snoop dog, vanilla ice rapper, Will Smith, Rockefeller family has multi generational wealth that the family will never have to worry about money.

@Sara Valentine Service dogs are not considered pets and are often vert well trained.

Some unlucky soul will get stuck with a twin bed, while the rest of us sleep like KINGS!!  

I eat, sleep and drink residential remodeling.

Do you require the tenants to have renters insurance AND do you make sure the renters policy does not have a dog bite / dog breed exclusion?

The One BR unit has the typical bunk beds in hallways that you see a lot here as well, so you can sleep multiple guests in it. 

As to the septic system issue, the Smokies are full of 2 bedroom cabins that "sleep 16".