Need Advice

I just found out a couple of days ago that my. father is a piece of crap. My parents have been back together for about 2 years now (they have been married for 20 years but hadn't been together) and I just found out that my mom kicked him out because he was abusing her. They had been struggling to keep jobs and only had a small camper to live in when they moved into town in October. I helped then both get a job and my dad ended up getting a better job soon after they moved here. Then he ended up losing his job. Apparently he cussed out his boss. (He lied and we didn't know this at the time) Then he stole beer from the store my mother worked at and she ended up getting fired from her job. They seemed to be just going through a hard time. Then the other day my mom finally had enough and told me that all along my father had been using every cent he could get his hands on to buy meth and other drugs, he had been having sex with anyone he could and that he had been abusing her. She looked so horrible at Christmas and she told me she fell into some bricks at her camper. I wanted to ask her in private but she really convinced me. Now learning all that I realized why they have never been able to get out of this hard time and that he has been stealing from my grandparents (his parents). It all came out and now my mom is left with a tiny camper that they haven't payed the rent for it to stay where it is, two dogs, not much Food, no money, he turned her phone off and she has no job and can't apply without her phone or at least internet access. I am doing my best to help her but I just don't know what to do. Any advice would be helpful.