My inlaws lived in south Baltimore in a working class neighborhood that so feared blacks moving in that the actual deed to their property stated 3 things: No Negros, No Jews, and no farm animals. I don't know whether they were listed in order of importance or not. Their house was built in the 1920s so the restriction dated from that time. Of course it couldn't be enforced once laws were passed prohibiting discrimination in housing, but the area has only recently seen its first black folks move in. The white folks are quite angry about it, but not all of them can afford to move to the suburbs.
The ones who could move out to the suburbs found beaches on the Chesapeake bay and its tributaries. They liked the so much that they put up big signs at the entrances stating, "No niggers and no Jews." They also had to come down when the law prohibited them.
Law enforcement is corrupt. The city jail was being run by the criminals. They ran their drug businesses from the inside and one officer ended up pregnant by an inmate. This happened just recently.
Nobody wants to work in Baltimore anyhow because the pay for officers is so much lower than surrounding counties. It's also known to be very violent and not a safe place to work. There's lots of turnover on the force. They're not very much into the "serve" part of serve and protect. A couple years ago, some people leaving an Orioles game got lost in a bad neighborhood and when they stopped to ask some officers for directions, they screamed at them and told them to get the hell out of there in a threatening way.
The city is racist and still de facto segregated. There has been some new highrise construction along Key Highway and in Canton along the waterfront, but they're definitely not affordable housing! So, yes, they do bring more tax revenue into the city which is badly needed. The roads are horrible. Driving through the city will destroy your suspension. There are water main leaks; the infrastructure is falling apart. But, that just increases the divide between the haves and the have nots. There just isn't much middle class left in the city. They moved to the suburbs years ago.
It's definitely a city in crisis.