@Joseph Lee from everything I have seen Central AC does not increase rent, but from my experience, I do see it as important to pull the cream of the crop tenants, and I think it will add to your value vs your competition when we see a market shift. 

Single-family purchases do not offer the luxury of cream-of-the-crop property management and are very expensive (~8-10% vs. 3-4% for large multifamily). 

Whenever I set something like that up for a person, it usually doesn't cost more than $1,500 and I'm sure there are people on BP who will probably tell you to do it yourself for even less.I don't recommend you do it yourself (as I've sometimes seen problems crop up when people do that).

If you want to flip, and you expect to make more than 50-60k a year, you will save taxes if you form an S-crop. 

That's when I passed the tenant problems off onto my PM, but a new crop of problems popped up.

Land price is too high for what you can make on it as a farmer, so most of the time your cash rent won't even pay for the mortgage payment (it probably would eventually as crop prices rise over the years, but not to start). 

I'm not sure what crop land is going for in OK - guess it depends on if it's dryland or irrigated land and the type of soil, crop land vs pasture etc - anyways lets say you get 2-3k an acre - that's plenty to get you going. 

My agent says its because the foundation is shifting, so when little problems crop up like the backdoor recently wouldnt close right, it scares the agents off and it doesnt get shown.  

You will hear others on hear call it a fad but I’m not so sure as more communities are cropping up and it’s an affordable housing alternative for some that want it.

Try those restore stores that are cropping up.