If I get my lease terminated, how will this affect my roommates?
If you are the only person on the lease, the rental property will return to the landlord or the owner. Your roommates cannot be living in the property when your lease ends, but you are not responsible for getting the abuser to leave.1
If your roommates are also on the lease, the landlord cannot end their right to live in the property because you terminate your responsibility on the lease. The landlord must allow them 30 days to decide whether they want to have their lease terminated as well or if they want to stay. If they do not end their lease, the remaining roommates have the option of adding a new person to live at the property.2
1 NY Real Prop § 227-c(4)(a)
2 NY Real Prop § 227-c(4)(b)