AS UNEDUCATED PEOPLE REFUSE TO LEARN.
the FACT is, if other tenants of the same landlord are extremely disruptive, yes you can sue to terminate your lease without penalty. and may even recover damages from the landlord (moving expenses). but that does not happen quickly.
1st, you need to request the LL deal with the problem tenants in writing. if they don't do anything, then you likely need to sue the LL to force him to address the issue. this process could take at least 3 months before you are ultimately granted the right to terminate the lease without penalty.
even if the LL tries to deal with the problem tenant, that will take a few months. LL needs to issue problem tenant a cure or quit notice, then file in court if they don't. court will likely give tenant a chance to get their act together..and when they don't, a month later LL will have to go back to court. if you are lucky, the problem will be resolved in 2-3 months. but it could take longer.
and as long as LL is addressing the issue, you can't break your lease without penalty.