To get an accurate answer to your specific region call up some property managers and ask for proposals for their services and as a apart of that have them supply a recommended unit mix based on your market. 

Looks like it, supply at 2.2 months and declining.https://www.bizjournals.com/phoenix/news/2017/05/25/phoenix-tops-us-in-population-growth-more-than-la.html

However, they neglect to mention in order to beat competitors prices, you must supply them with a truth in lending statement/estimate.

As the Boomers retire and downsize, I expect a marked influx of supply of this very type of traditional, single family house.

Governments rightly look to private sector to provide and manage housing supply, bringing tax incentives for both parties. 

Well, what "turnkey" by meaning is this: built, supplied, or installed complete and ready to operateSo you will see a lot of turnkey services pertaining to real estate especially ready-to-go rental income properties. 

Hey guysI was approached by a Navigation company about rooftop lease space for an antenna to be used in collecting data for self driving cars, and drones.Its a small unit that receives & transmits data, part of it would be inside my building, and  I would supply the power.all the regular mumbo jumbo in the lease like access with 24 notice, and what not.Kicker is they offered $50 a month, I didn't even  bother to respond, I believe the guy searching for sites is just a hired sales man, he sounded scripted.Anyone in a rooftop lease out there that can share some advice, at $50 a month I wouldn't even consider it.Thanks

Then the tenants supply their own window units for AC 

I have a shed in the backyard of my house now with all of my old rental supplies and I hardly go in there anymore.

We lived through one for my son's new build & it was all over the place for pricing/subs/supply availability & we even added a prayer for on-time, on-budget completion!!!