Home has a pool, hot tub 1600sqft, invisible fence for dogs, everything has been updated including appliances.

There are lots and lots of expenses you'll face that either seem insignificant or invisible when facing the excitement of buying a property for STR.

In other words it is invisible from a tax perspective. 

Manny,Having your name on a Quit Claim Deed, is usually invisible to financial aid programs or First-Time Buyer programs. 

Also, since it's invisible money, and useless unless you sell the property, it's just a rationalization on how much money is being lost here.  

No you cannot just drywall it to magically invisible now inspector is going to make you rip out the drywall to see. https://up.codes/viewer/new_yo...

Would the blighted houses appear invisible and the market value would be increased by the inclusion of a large side yard where the blighted houses once stood?

Wow, lot of invisible talent.

We usually make it smooth and invisible to the customer, but getting past silly conditions is perhaps the biggest challenge. 

(the running joke about how to get approved to get a loan from the bank is to become so super successful that you don't need the banks money and then banks will bend over backwards to get your business... and alas.. that is another thing that proves to me that there is an invisible hand making poor people poorer and rich people richer) because if banks actually operated the way their commercials say they did the economy would be completely different.