Bad news....
Convenience of the location of the apartments is not grounds for breaking your lease...
Health code violations that aren't repaired after proper notice, or other violations of your rights under the lease to constitute a breech of contract would be another story.
If you break your lease, you are responsible for the rent until it is re-rented or until your lease would expire (whichever comes first) If it is rented out for less for the period remaining on your lease, you are responsible for the difference. You can also be responsible for the advertising costs, brokers' fees the landlord may pay to re-rent it, legal fees and court costs of chasing you, your roommates or any co-signor. Remember your lease is jointly and severally; which means the landlord can go after any one or all parties (tenants & co-signors) for the full amount.
If the landlord says: "OK you can move out." Get it in writing.. He can go after you if there is no written proof.