Our landlord keps haring us to purchase the home we are in.?

We are renting a home and have a signed lease until Sept 2009. Our Landlord is haring us to purchase the home or he wants to have buyers come and see the home. When we signed the lease he never added any information about having buyers see the home. Is there a legal way of getting out of our lease so we are not hared and move without being held responsible for the remainder of the lease. Also there are many repairs and defects that the landlord has covered up and is not disclosing. The foundation is in such deplorable condition that the floor is not level, there are termites and in the back of the house the only thing holding up the corner is a small brick. The back door is a rotten piece of woodthat came off the hinges due to being so rusty, the hot water only stays hot for less then 10 Min's at a time and it is a brand new hot water heater. The stove not level due to the foundation, plus the stove burners are dangereous, the poof on and ignite very high when they work. The landlord also put in a boxin the wall to cover up Extension cords for the electric. The utility bills are outrageous due to there being no insulation behind paneling that he painted over. He also coverd the holes in the floor with cheap carpeting. Thank God we did not purchase the home. We want to move but not be held responsible for the remainder of the lease, how can we do this legally? Also where would you report him selling the home in such disrepair and not disclosing any of the many defects? I know this is illegal. You help is greatly appreciated. Thank you.