My Dad used to verbally abuse me and hit me when I was growing up. He's a painkiller addict. Finally, my mother got fed up with my Dad, so they divorced. They were divorced for three years before my Dad got kicked out of the place he was staying, and my mother let him move in. Then my parents bought a house, but my mom refuses to remarry him. The only reason my Dad stopped hitting and verbally abusing me after that is because his brain is deteriorating. He has Parkinson's and Dementia. But my advice is: call the fuckin' cops on his ass. Alcoholics can be really fuckin' unpredictable (I'm a recovering), and one day he could go off the handle and land your mom, or even you in the hospital. And while you're at it, try to get ahold of some of the local or state abuse centers. Not only can they probably help you, they can also influence the courts to force your Dad into detox.
people can change tho..growing up,my dad was a drug addict/alcoholic,extremely abusive to me & my mom both..I hated him for a long time,& did some bad shit to "get back" at him.he's since got clean,he's been clean & sober for 5 years,& I'm finally blessed to have a real father.it took a lil forgiveness & alot of communication on both our parts,but it worked out..even tho I know mom would never go back in a million years lol