LLC offers better legal protection.3) Setting up in states that allow your identity to be hid is also overblown.

Any legal issues I should be aware of in this situation? 

I have read I will need to use a third party service to make this happen.  

Blood gets thick and the worst part is 10 years later there are new voices in their ears, telling them all kind of crap and filling it with all kinds of ideas. 

They outsource their credit repair program to a third party vendor who has very minium knowledge on the matter of credit repair.

Are there other legal or financial consequences I should be aware of?

Well anyone can write anything into a contract, but whether it is legal and enforceable is for the courts to decide...It is State law here that a contractor must call 811 or they are liable for the costs.

The seller was not getting much traction from the other interested parties.

I think there is value in ADU as long as it is legally done and can be legally rented.On the sale side a benefit can always be an in law suite.

That stopped when I stopped using third-party cleaners, but I also started to only leave enough for the stay.I use a small Dawn hand dish liquid that I fill between guests and larger hand soap dispensers in the bath and kitchen that I fill between guests.