If it is in a hard to rent area, then it might make it easier to rent.Check if it has been painted, if not, cover the flooring, spray it down (use a mister), wear a mask and safety goggles to prevent breathing it in or getting it in your eyes and then gently scrape it off. 

Then once it's painted you'll be forever committed to a an unnatural-looking rock wall with peeling paint, as paint doesn't stick well at all to porous surfaces.

"I'm Interested" Due to COVID concerns, ALL attendees will be required to wear face mask.

And so, with a renewed sense of purpose, let’s wash our hands, put on our face masks (yes, you!)

With a conventional loan, the PMI drops off at 78% LTV I believe)- Points, and if there is a situation where you would need to pay points to drop the interest rate- Ask about how FHA inspections of property differ from convectional inspections (FHA inspectors are more strict, no peeling paint, handrail requirements etc)- etc etc

100% financing at 4% = yes most likely equals scam100% purchase/rehab cost is not unheard of, but thats probably no longer available at the moment, a lot of private lenders are peeling back and being more conservative at this moment on fix and flip loans. 

Listing also stated "wear a mask and use caution when viewing"

After taking possession the smell of cat pee is quite strong, especially on hot and humid days, with no diffuser to mask it.

They will reject a loan for a little bit of peeling paint, a cracked window, uneven sidewalks, wobbly hand rails - and that list goes on and on.In a conventional loan they typically only want to be sure that the major systems are functional. 

If there's no peeling paint and the swabs come back clean, then it's lead safe.