Especially me as I do construction for a living. 

Smaller SFH = less maintenance , there are lots of single looking for a place to live .

You could start by reaching out to any local corporations that do assisted living in your area and see what they are looking for (location, space specs, etc). 

Live in one unit - It's a great strategy when using a bank for financing as the down payment and interest rates are more favorable to owner occupants.  

I lived there for 10 years.

well if I ever make it to the Smokies to see what the draw is  I will rent a condo then :)  I am just guess but I suspect folks that go there want to be in the woods and hear the birds and maybe some local mtn views etc.. or some sort of privacy they never get at home out east were there is not very much public lands close to where they live in the big city. ????

buy a small multi and live in the smaller unit. 

My Ex-wife currently lives in my fathers home.

Since your metric is modest cash flow with long-term appreciation, focus on neighborhoods with a history of steady growth and tenant stability.As a realtor, you already have the skills to analyze deals—so trust your instincts and take action!

This residence features 3 bedrooms and 3.5 bathrooms, encompassing approximately 1,700 square feet of living space.