To do it correctly is expensive and by that, I mean pulling permits on all the electrical, gas and mechanical, vinyl plank flooring in the high traffic areas, upgrading the carpet above the cheap investor grade, new counter tops, ceramic tile, addressing all external issues including the fence and external buildings and tons of other minor details.  

Like I said I don't know the advantages and disadvantages of lease option vs subject to but I guess I juste understand the mechanics and paperwork better. 

From my experience, coin operated machines are easy to maintain (vs card operated machines - I am not referring to the actual  machine, but the payment mechanism).  

In order to have the umbrella policy I am required to have full auto insurance coverage at $250K each person/$500K per accident (which drives up my auto policy significantly by the way).

I've never seen a Tesla in Auto Trader, but then I rarely look at it anyway. :)

If the lease converts automatically converts to a month-to-month at the end of the standard term, then usually you have to give 30 days notice that you are not allowing the conversion.If it auto-renews, you may have a longer-term issue that needs to be dealt with.In the end, look at your lease and see what it says.  

You mentioned some of the mechanical systems have been upgraded; you will want to find out how extensive the upgrades are, and if there is any original stuff (particularly electrical) still remaining. 

Other things I like to look at is age of all mechanicals, roof, etc as there may be a need to replace, repair these items sooner than later. 

I believe I have a knack for this (I am in the construction field, with a BS in mechanical engineering..numbers and building things are in my blood).

I can estimate mechanical, plumbing, and fire, but not roof or carpentry.