Interestingly enough, my home, built in 1953 in Lancaster, Pennsylvania has a covenant in the original deed restricting the sale to whites only. This usually isn't disclosed to the buyer, we just happened to have our deed transfer done by a friend and she found it.
Watching this documentary, it makes it a bit easier to understand why Minneapolis might be flash point of the new civil rights struggle. Despite laws, the actual functions of many cities don't realistically change, banking practices don't magically switch modes, prejudices are still passed down through families. Things may be better, but that is not a very high bar to exceed!