Is it better maybe to just work out an assignment deal of the lease option so that when i get a tenant buyer, i can just assign my lease option rights to them, collect an option consideration fee, and step out of the deal so the tenant buyers and seller are then paired together directly? 

The best thing you can do when first starting out is pair up with an experienced investor to help you get some skin in the game.

If there is someone who could use extra pair of hands to take some burden off of their plate.

Pairing it with a heat tolerant ground cover will also mean no weeding.

Jeez these things wear out like a pair of shoes huh?

Very seldomly a general contractor is financially efficient doing roofing, siding, Windows, pairing.2- What happens if you decide to fire them mid way thru the job?

That way you as a pair could  remove realtor  fees, and have 0 days on market.

They sell them in pairs for like $50.

If anyone here in town needs a strong back or just an extra pair of hands,  feel free to message me here and I'll give you my number.  

In terms of measuring the performance of a property, if you continue your analysis you mentioned, and pair it with a life cycle cost it will give you a good measure of comparison.