Run the numbers every day as if  you’re exercising.  

The advantage of "rent to own" is that typically you're selling them an option to buy the property that they can choose to exercise or not.

This exercise may enlighten you (and if you want to post your result, I would be interested but I am confident it will be over $1k/month because we buy semi regular, including some poorly timed such as 2004, and they have all appreciated over $1K/month (I believe our worse is $1.6k/month over the hold period)).  

I don't blame Landlords for exercising due diligence when hiring a new property manager. 

For your academic exercise to work, there are two variables you must hold constant. 1.

You could set option purchase price based on appraisal at the time the option is exercised, I’ve seen this done.  

Do a gross rent multiplier exercise/comparison?

That's just a hunting exercise to keep going until you find a few that will do it. 

Im In the Tampa Florida market and I have called a multitude and they either don't work with investors, or they don't exercise cash out refi, is there a catalog to use to find the best investor-friendly banks in your local market?

(It’s a great exercise to help unlock your highest potential and possibilities).