An unneutered male (and some unspayed females) will "spray" to mark territory and the urine from an unneutered male is extremely strong.Kittens are extremely playful but can be destructive. 

Kansas don't play like this!

REI is about streamlining and automating deal flow.Once you have that figured out, THEN  how to do a flip comes to play.

I like "Let's Get Real or Let's Not Play" which is all about creating win-win situations where both parties benefit.

Is there a neighborhood association that could come into play?

All, many mentioned value add play, so what is your end goal with value add? 

Seems easier to slap 1/4" sheetrock right over it then try to mud the whole house top to bottom.Termites are definitely a thing here.

I won't mention appreciation here since it is a speculative play.

Looks like a solid management play!

Where in NJ plays a huge role as well, not every town and county works the same way.