I would get that disclosure especially since they seem to want to hide the condition for some unknown reasons. 

Just because its an option, doesn't mean you'd qualify for it as there are too many unknowns, the ARV actual appraisal being one of them.You have to define your own comfort level. 

You can take some risk and get an easy 10% (buy a rental off the MLS)... or you can invest some time and inherit more risk (buy directly from sellers or distressed properties with unknown issues) and get even higher.What are you comfortable with?

RE investors have enough to keep up with than to venture off on a tangent into the unknown, I know enough about it to know I'm not a buyer or a dealer!

Ok, not unlikely but still an unknown.  

I see way too many people find some cheap unknown provider on a website. 

Over-inflating closing costs is good and should be a common practice for LOs who don't know what most of the fees are upfront because its very true that things such as title, taxes, prepaids, etc. are all unknowns.

The leases that I've been involved with for the feds are very specific as to what they will and won't pay, what is needed in the space,; and, most of the leases are gross leases wherein the Landlord has to calculate many unknowns.

Somebody wanting to sue for you backing out of a bad deal or accusing you of selling them a property with defects like unknown termite damage).

I have a few questions regarding proper procedures to take following a tax sale in order to safeguard the property I have purchased and protect myself from unknown costly circumstances. 1) Quiet Title ActionCould some experienced PA Tax Sale investors recommend a good attorney they have worked with for completing an action to quiet title procedure.