what are some red flags for bad deals?

[Charlotte Edwards]

I just found a house that's in our ideal neighborhood (we'd use as a rental now and later move in when we move to the area because the schools). It's a for sale by owner and the price is 50k but it says that they've done 100k in upgrades. Just a typo, I think.

Also the little marker on Zillow shows it in the wrong neighborhood. And is says it's in a gated community. The corn field certainly isn't "gated" nor is the actual street where it supposedly is located.

The guy gave his email and phone number. I may call to get some info cause it seems too good to be true.

I'm wondering what's wrong that I'm not seeing. I suppose anyone could make errors like an extra 0 or clicking the wrong box (if that's how entering data on sites works). But I'm also very new to this and I don't know what I don't know...so I'd love to know what others see as red flags or in which ways you've been lured into a bad deal.