It’s also your problem of not checking the property thoroughly before renting the apartment, even and anyhow is the owners behaviour because you are paying the rent to him, so you have all rights to check the apartment before renting.. nevertheless if any problem occured by gone is by gone.. now you can break the lease agreement by having words with your house owner and his approval, that he can allow you for the early termination. You and landlord can settle for new tenant and handover to new tenant the rental functions. or else agree to a settlement amount that will be less expensive than the balance of the lease amount.

Do not consider this as a legal advice.. I can help you with my personal knowledge and personal opinion.
Please let me know any information needed.