Need help getting family away from abuser

I am not sure if there are neough people out there who care, honestly my attitude towards this is " By the end of the two weeks the donation status will still be at $0" There is no way I can make anyone care, all I can do is hope that y'all will. This is a last resort kinda thing. I don't know what else to do. My family and I ( Me (Leslie age: 22) My husband (Tim age:28) My mother (Linda age:48) My daughter (Myrrha age:4) My son (Landon age:2) and my other son (Tyler age:8 months) need help getting away from my mothers alcoholic abusive boyfriend. He emotionally abuses my mother all the time and treats her like a slave.Treats her like crap when she wont "put out" kicks her out of their room everynight and she has to sleep in my bed. Threatens to kick her out with nowhere to go. She doesnt even do anything to him.. he makes stuff up in his head. First thing he does when he wakes up is buy beer and get drunk and spends the rest of the night cussing in front of my kids, and my 4 year old daughter tells him "stop being mean!" he calls my mother names like "whore,slut,piece of sh** etc.." he also tells her she will never be nothing. He is constantley putting her down.. and she spends most of her time crying. It hurts me so much to see her feel this way, it's horrible.. if only I could show the world how he is. I tried to call the law but they didn't show up and I'm also afraid if they were to show he would throw us out with nowhere to go. We need 1,800 and that is for a down payment on a vehicle big enough for my family and I and a deposit for a home to rent.  The reason we need this help is because my mother's boyfriend makes us pay alot of his bills and we never have enough money to save and what we have left has to go to gas for my husband he works 36 minutes from home.. he did have a vehical  but it broke down today transmission needs to be replaced he has no 3rd or 4th gear or reverse now so it's undrivable, and we don't have the money to fix it.  We need to get out of here ASAP I don't know how much longer any of us can last.. I don't want my children or my mother around this. Please please, have it in you're heart to help us.  Thank you so much.