The only downside I see is that Dayton City Schools is not rated well as a school district. 

I would lend your money right now, considering we are at the top of the market, and there may be 20% more upside, but there is unequivocally 80% downside. whereas if we were at the bottom of a market its the inverse. 

Biggest expense appliances, hmm, this is not a deal, 

Some things that might be a concern:1) Obviously have to make sure things are all permitted first2) I don't want the room to "feel" like an addition, so flooring has to be same level/standardized with the rest of the house3) Unlike the rest of the house that has an identically-shaped 2200sqft basement underneath, this added space will not have a basement directly underneath it -- I'm not sure if this poses major cons for some reason that I'm not aware of4) Especially given the lack of basement underneath, I have to make sure that the HVAC can still somehow be piped into this room#2 and #3 are probably my biggest concerns (#1 and #4 I can find out relatively easily)Any tips/thoughts or other experience would be greatly appreciated. 

Yes, that is my biggest concern is the very poor cash flow - but with the area I'm in, I see appreciation being a large piece of the puzzle.

Titles, being occupied are my biggest fears.

The biggest issue we had by far was the back neighbor.

Without any skin in the game the downside far out weighs upside.

Other than making less money overall, some of the other downsides of my S8 experience were the following:1.

- What are the downsides for the landlord, compared to a traditional residential lease to a family for instance?