We bought this thing, rennoed it, worked out tails off, payed it off, got hitched, in four months he developed some sort of anger management disorder, we tried to treat if for a year, but the situation was getting dangerous, so it had to come to and end. 

Offering someone with low income a safe comfortable place to live helps the community and keeps them from being homeless forced to move or left to live in some dangerous public housing facility .

This is the most dangerous misconception.  

Only if the animal was deemed to be dangerous because of a prior history or if it will cause undue financial hardship to the landlord like if your insurance company threaten to drop your coverage or raise it substantially because of a certain dog breed.But even then it’s an uphill climb.

Does anyone know the best way to see how safe or dangerous an area is?

Until we hit another recession, I think personally buying from a TK provider is DANGEROUS.  

They might not feel like it's really an issue until they are actually in danger of losing the property.

Is it dangerous?

In Birmingham and Mobile, they say that unless you have quieted title to your tax sale property, or gained a quitclaim deed from the former owner(s) or heirs, the property is in danger of being redeemed.

(CBSNewYork) — The contamination has spread further than anyone imagined.Lead levels in homes just outside a New Jersey superfund site have been found to be dangerously high and that has some observers demanding quick action.