Maybe just enough to be dangerous and lose my kids' college tuition money over some sour deals, hopefully not!

Mail them letters, ask your neighbors if you know where they went, find them on facebook or other social media.

It’s scary to learn that many are hoping that Social Security alone will support them for the rest of their lives

If you can supervise, you might go down to some day labor office or soup kitchen, painting is not to dangerous but I doubt I'd put those guys on a roof, but I have met some good ones while sober (not saying they all are drunks but there are some)and they worked out well, met roofers with experience too at day labor places as they were just out of work, but many can't really work on their own, they need to be supervised.

Not necessarily that it is dangerous or has a lot of crime and so forth.The advice of buying closer to them still seems smart.

The real danger was having the bedbugs infect others without the landlord doing an action to prevent that.

That said I know VERY few groups on any social network that I've ever found to be worthwhile.

This is dangerous, and likely to end in failure b/c you will invariably pack too light for a many-years journey!

Floating floors are dangerous in rentals because water damage is never suspected until it is too late.

People in inner city housing probably WILL be patching their existing systems, even when they are on the verge of being dangerous, because of affordability.