Are there any agencies or charities to help a person with cancer that is close to being homeless?

She lost her apartment and is living in a motel with enough money for only a few more days. I was in a coma for a few weeks after a work accident, am crippled, live in a very small place (leased for only one), and am barely able to pay my own medical bills, so I'm no help. I can't think of what to do, and honestly, she's too sick to do much on her own.

It's -21 F here in Montana right now, so I may have to figure a way to sneak her in to stay, but it would be bad for us both.

I don't know what category to put this in, but I'm desperate enough to throw this question on Y!A...it can't hurt to try.