Cons:Needs good surface prep (flat smooth clean)Needs to be rolled with a 100lb roller at least ($20 rental at hd)Not waterproof over woodWill curl in hot/humid/direct sunlight sunrooms etc without being glued down.Applications we have done with success:Floor leveler over existing tile bathroom then peel/stick vinyl tileOver level wood floors (plywood) Over existing linoleum Over concreteOver damaged and stained oak hardwoods (when you pull it up it does not leave a residue)

From what you describe, assuming that existing rental income is honestly reported on your tax returns, you should be able to count both rental income from the existing property, and projected rental income from the other units in what you are buying, assuming a local REI-friendly lender with minimal/no overlays (those are the reason why you see conflicting stuff online). 

Both of which i don't think work because of the existing mortgage and estimated rent evaluation.

But I’m not going to open a business bank account for an LLC that doesn’t exist yet because I didn’t buy the property yet.

I would never pay down existing mortgages I would just let them play out.  

Trying to figure out the “real” cost of installing a new central AC unit and replace existing old furnace.This is in San Jose, CAHome is 1600 sq ft - 2 story Got quotes that range from 8.5k to 15kI guess the need is a 3.5 ton compressor and a 2 stage energy efficient furnace.

It is because of you all that I still believe good people exist.

Zillow smashed both together and created a new listing that had never existed. 

Of course the existing agreement is going to govern exactly how such a transfer would need to be handled but at a minimum the tenant would need to acquiesce in the transfer and terminate the option... likely by joining in execution of the deed.

I only caution everyone should remain vigilant and don't be willingly blind.In the world of criminology and fraud sometimes people change, they make a bad decision under pressures that didn't exist when you first met them.