How can I help my mom?

My mom's house is going into forclosure, and I dont know what to do. She tried putting in a rental application and it got denied because she "doesnt pay her bills on time". The reason she wasnt paying her bills on time is because she wasnt getting her alimony and child support when she was supposed to. She was having to choose between mortgage, electricity, food, heat, and she would pay what she could on some bills, so the others ended up late. She works full time, but her job doesnt pay enough to cover everything. She came to terms with losing the house, and tried to look at moving into an apartment as a fresh start, but now she cant even do that. Im 25 years old, married, and have 3 kids of my own, with a whole life of my own to worry about. I just really dont even know what to do. I can let her move in with me, but Im probably going to be moving into an apartment soon myself. I try to do whatever I can for my mom, she doesnt drive, so i run to the store for her, take her shopping, give her rides home from work, take her to the docs, etc.. But I really just dont know what to do anymore.