In those instances, we are interested in monthly, residual cashflow on DAY 1.

There are some stains on the floor and tons of adhesive glue stuck under the carpet.

A better term is residual income, because there must be an investment of something up front and on a continuing basis. 

It's all about the residuals that suck the franchisee dry.

I'm also looking for land to set up a food truck park with the sale goal- passive, residual income. 

The adhesive used to fasten these tiles also contained asbestos.

I'm contemplating weather to use an adhesive vinyl tile where you could just peel and stick to the floor or an vinyl linear where I would just cut to size and float it on the floor (Maybe use a little bit of glue).

If this is an older home built before 1978 there could be asbestos in other products like attic insulation, flooring adhesives, vinyl floor tile etc. 

The residual value of the property is not going to be more than any other single family in similar condition in 11 yrs, if the tenant does not renew.From there, I would look at that estimated value, less any costs it will take to make it a "normal" SF home, assuming the medical treatment center has done some custom work to the house, factor in my cash flow that I can get for the next 11 years, and back into a value for the property.Another thing I would consider: the deal is NNN during their lease term, but assuming they leave, what are your estimated capex bills?  

The floor always remains shiny and there is never any residual stain or smell after pee or poop.