Can I get out of my lease?

I got a year long lease for an apartment in January. Shortly after moving in, the ceiling in the kitchen started leaking – we notified the property manager and he had someone (the on-site handyman, not a qualified professional) do something that temporarily fixed it. But then it began leaking again (ten days ago), we notified them, and they did nothing. So the ceiling collapsed and there is a 2.5 foot hole in the kitchen. They now replaced the pipe but we still have that huge hole, for which they expect us to wait 2 to 6 weeks to fix. Also, the ceiling in the bedroom is now leaking, and they don’t seem to think that’s a problem either/haven’t made any plans to fix it.

Not to mention the fact that they apparently had no air conditioning units installed until just this May, even though they told us they had put in new energy efficient units when we signed our lease.

Short story, I don’t feel like I signed up for this, I don’t want to deal with one or possibly two holes in my ceiling for weeks, and I am tired of them lying to us and not working quickly to solve pretty important problems.

Anyone know if I am justified in trying to break my lease? Or anyone (gov. agency or something) that I can call and ask for advice on what to do?

Thanks.