Homeless

My brother-in-law has bile duct/liver cancer and has a life expectancy of 6 months to a year. My sister gets a small disability check which isn't even enough for her house payment and when they get kicked out of their house, they will not even have enough money to get an apartment so they will have no place to live. My brother-in-law can no longer work so he can no longer bring in a paycheck. Please help as much as you can. My sister does not know I am doing this. I don't want to embarrass her. Any amount will be helpful. Thanks so much!