seller trying to dump @ 50% assessment

[Mark W.]

Started to look through the daily craigslist ads, and there's a FSBO up/down duplex looking to dump his place for 30k. Says it needs a new roof and paint (drove by, yes it does). I just found the city assessor's website and see that it is assessed at 61k. That's pretty much what all the houses on this block are assessed at.

Surely there's lots more to investigate, but are these the sorts of deals I should be finding and looking at? Is this how you guys quickly evaluate properties? (drive by, check assessed value)

I also see that the owner is behind on his tax bill. And he's been posting an ad for this place everyday. He wants to move it.