Hello, You can just refer to me as T. I'm currently struggling with a difficult situation and I wanted advice on what are things we could do. I don't know if theres is a different place I should go to or something, but this was big and I'm sure people here can help.

This is a long one, but I feel like full context of situations is important. I'm horrible with paraphrasing and it's been a scary day.

Slight trigger warning for talks of abuse and threats?

Earlier this year, I moved from my home city away from my mentally abusive step mother and moved in with my partner, who I loved dearly. In the beginning, it was fine, but over time my Partners mom (we will refer to my partner as K), started to drink and when she drinks, she gets aggressive and views herself as the best person without flaw.

Overtime, K's mom has gotten more and more aggressive. She bangs on doors, stomps up and down the stairs, yells slurs and threats. She has not become physically violent aside from pulling K's hair some times.

Now know that I am unemployed before this first part. Whatever your views are on that, whatever. I am disabled, I have PTSD from a life long of abuse and Everytime I hear her yelling it takes me back to living with my step mother to the point where I hide in closets or under my blanket like a child.

The night before, K's mom smeared crap on the floor. She gets drunk and can hardly take care of herself, and she has no regard for anyone else. She pays no rents, all she does is drink and when confronted, she gets aggressive and says hurtful things I cannot repeat.

Today, in a group chat between K's family and her mom (K's family consists of 1 sister, a brother, and a grandmother who is currently elsewhere recovering from surgery), They tried to confront her about about literally making a mess in the bathroom with feces and not cleaning it up. She then texted K (they have a horrible relationship), threatening to beat her and me up, calling me names. She's threatened to kill us before and was banging on the door trying to break in to beat us up.

K's mom then calls the police on ME to come (K is at work during this time) and get me out of the house. She bursts open the door of the room I'm in, tells me to get out. I am not a confrontational person, I said okay, grabbed my stuff and was going to leave. Luckily K's sibling stopped me and kept me safe in their room. The cops arrive, they ask questions, and ultimately it wasn't violent, even with the threats I showed, so they couldn't kick her out because her name is on the lease and they couldn't kick me out because K's name is on the lease and I'm technically a guest.

K's family, minus the alcoholic mom, pay for everything. The bills, rent, everything. She pays nothing.

I'm asking for advice for what tenants living in the house can do. I'm not good with laws, but her name is on the lease so I know it's trickier to getting her kicked out and reading up, I learned that there is protections towards alcoholic housing with some laws.

I feel stuck, but it's dumb if we all move out because one person is leeching. If there's a better place to post this, let me know. Thank you for reading.

We live in MA. (Realized I should add this for state law differences)