Landlord Tenant

Does a landlord have to have a gas furnace serviced every year and notify tenant of outcome?
Does a landlord have to have a gas furnace serviced every year and give the tenant a copy of the report? If carbon monoxide is shown do they have to disclose that information?
What can happen if I terminate my lease early?
I have a lease for rent of one year. If I want to move after six months, do I violate the lease? What will happen to me?
Did I violate my lease when I left my vehicle sitting on a flat for three days while out of town?
I am on a lease that states a flat tire on my vehicle must be fixed within 24 hours. I went out of town on 12-5-06, and I returned on 12-8 06, and my truck had been towed and impounded for a flat tire. Did I violate the lease?
Is there a law for when a tenant moves out that the locks have to be changed?
My daughter lives in an apartment in Tallahassee. She is a student at FSU. At her apartment there were 4 tenants for a four bedroom 2 bath apartment. Each tenant was on a separate lease and only responsible for their portion of the rent. Two of the tenants transferred to another apartment in the same complex and paid $175.00 to transfer. They came back into my daughters apartment after moving out last week without my daughter being there and used their old key. I called the rental office and told them about it and asked them when they were going to change the locks. The rental office told me they just ask for the keys back and were not required to change the locks. Isn't there a law for when a tenant moves out that the locks are to be changed?
If I rent my mobile home lot, who is responsible for problems with the sewer's main drain?
I own my mobile home, but the rented lot that it sits on is sinking because of a sewer main that run's off in my yard to the main sewer drain in the street. My home is sinking drastically. The lot owner says it is not liable.