My sis is trying to get back on her feet...where can she get help?

My older sis is trying to get back on her feet...i commend her for that. We stay in NC if that helps. She has two small kids. She has been back and forth in between friends/parents house. She was just accepted for a apt in the city i stay. She has no car and by all means does not live outside her "budget". The place she is staying is pretty cheap...under $500 but thats what and ONLY what her child support will cover. She still has to consider water and the children's neccessities. I am young myself, only 22 and while i have a good paying job we are still getting "established" and trying to pay off school and car loans. I am still in school so tuition also. We have two kids ourselves so while we are making it we don't have that much to help out. Our parents have boo coo money, but they are ones to help out everybody else down the street but when it comes to their children EVEN grandchildren they turn the other way. Even when i stayed at home since the age of 11 I got NO allowance yet i had to pay for all my necessities, i mean down to female hygiene products. Anyways. She had to move in with my parents to get away from the father of her children. Its not a good environment for the kids and they have made it clear they are not welcomed there and need to get out which is why she has been trying to get out. She is going to start doing daycare to cover her expenses other than rent....which would be best so she doesn't have to worry about transportation or how to afford daycare on a not so good paying job. Her only problem now is that while she will be able to pay the rent and expenses she doesn't know how she will come off the $500 for deposit. Where can she get financial help? We literally just dipped thousands out our savings to get both our cars fixed in this past weekend....yes worst luck ever. So its not a good month for us either. Like i said, she is trying to do the right thing and find her babies a "home" and get on her OWN two feet...but she needs just a little push to get there. I did some research and ran across things like churches and salvation army....will they help her MOVE IN since she has no where else to go?? I thought most of these "emergency housing assistnace" is when they help pay if you are like "behind" on bills and facing eviction that sort of thing. Also let me add, she has stayed with us for a little while the last time she came here. We live in an apt ourselves and it was 3 adults and 4 children (all 3yrs and under), which obviously wasn't best either. Any advice would be greatly appreciated.