If I were them I would not wait. Pretty soon they will not be able to sell their home except at a huge loss. I see the average home in that area in a few years like most of Detroit.
This is exactly what will happen. They increase property taxes because they think because the house can't get up and leave, people are trapped and must pay. No. Eventually people will abandon their properties and the land will be worthless.
I see that you’ve never been to Chicago, or Detroit, for that matter (recently).