This is exactly the behavior I enjoy. Everyone is full of fear. Don't touch detroit! you guys say. As warren buffet says, when others are fearful, be greedy and when others are greedy, be fearful.
I think he also said not to invest in communist shit holes so horrible that people make movies to put across the message that only a robot could fix that broken city. btw that movie is from 1987, so it's had the reputation of "how could it possibly get worse?" for about 27 years.
The big thing holding Detroit back is democracy. The people in that city keep thinking their bankruptcy is caused by some evil corporate cabal, so they keep raising property taxes instead of cutting spending, allowing citizens to have guns, and executing criminals behind closed doors. The result is capital flight; people with money flee to the surrounding areas where the taxes are lower and crime is lower.
When real estate was down 50%, people asked how it could possibly go lower. It has. You can buy houses in Detroit for $500. The houses still have no bids because they're literally worthless. When their local government has such an anti-business mindset, I can't imagine it getting better any time soon. If you're going to invest, start small. Buy 1 house, not 20. Treat this as a high risk speculation.