Of course, the discussions are numerous on BP about turnkey, but I have a bit of a different question (one that I have not seen addressed yet).If you've been a successful turnkey investor, what are the specific financial criteria that you've used to select your properties.  

@Paul Doherty@Lacey N.@Umer

I've seen numerous properties there with zero vacancy for over 10 years. 

@Bob BowlingWhile I think it would be clear that presenting comprehensive calculations - with the clear indication that one figure is designed to be an apples-to-apples comparison to the numerous other numbers floating around in the market, while highlighting that the others are complete calculations including expenses that other companies don't even mention - is not the same as a bait and switch, you seem committed to your opinion and your use of the capslock key, so I'm not sure I could convince you otherwise no matter what I said. 

Understand that there are a ton of details too numerous to explain in a post.

The market has been pretty slow, however I have had numerous requests to rent. 

They will have overcome all your objections, no different than the sales technique taught to all car salesmen.The price quoted to me by Cassie, one of the assistants, was $30-50k for the *er-hmm* "mastery program" where "not everyone is accepted" (unless the mark is able to raise their credit card credit limit or have cash in the amount FB wants to suck out of your pocket, which they overcome the objection to by saying you'll recoup that amount in your first one or two deals.

Are there any calculators out there that can help me analyze this objectively? 

Consequently, low chance of owner(s) waiting for appreciation.Your objective is to connect with the owner(s), plain and simple.

The Object Oriented(OOP) terms are manager, controller, viewer.