I would add that SFH airbnb market here is saturated BUT I believe there is still a robust market for larger homes for family gatherings and events.

The stock market has been on a tear.  

We manage several hundred rental properties throughout the San Diego market and I found your post very interesting. 

Since you're focusing on Dayton and Cincinnati, you'll find plenty of opportunities in those markets.

But to date, I've just set my rents at a rate that accounts for me having to pay the water bill - and informed the residents that each year I'll increase the rent based upon my expenses (including water), so keeping the bill down helps me to help them.But one problem this could cause is if increasing the rent to cover the water bill then places your rent above the market rate.

Look at their marketing strategy.

Higher DemandThe rental market is shifting.

You will likely need to find something off market.

@Linda PhamAll our midterm rentals are in Colorado as are our clients, so I don't know Houston's market.

But for the best local advice, make local connections in the market with Host groups and Rental Associations.