There was was pit bull puppy that someone abandoned on one of my vacant properties.

I would make the distinction between a high crime area and an area that has been abandoned with row after row of abandoned properties slated for demolition however both would have challenges to an investor.

The other I just took over since it was abandoned on my property. 

It seems that deals are harder to come by as most investors have caught on to the gold mine that is Newark and bought up a lot of the abandoned lots and older properties.

I've found an abandoned SFR, and after over a year of searching, finally found the heirs.  

I found a house that looks abandoned, can't find the home owner of the property, was wondering if you guys had any clue on how I can find this person?

So I began to drive for dollars with a friend of mine and took down addresses for several properties and finding a handful of properties that are clearly abandoned.

on an awesome triplex, but the rest of the street is largely duplexes, a couple of which appear to be abandoned.

Philly had a similar problem and the city started to sell off (i think 2500) vacant land and abandoned homes.

Partially rehabbed and subsequently abandoned.