Trailer park relatives moving in?!?

There's nothing you can do, or nothing to handle. It's your mom's sister and her family. I don't know why they got evicted, and to be honest, it's none of anyone's business. But if it weren't for your mom, they'd be homeless. Should she turn her back on her own sister? I do understand your frustration, but be thankful for what you have, and maybe try to offer some support. They are who they are, but they are still family, and I'm guessing would have no place else to go.