A lease agreement is a legally binding contract under which the tenant is liable for all rent due through the termination date of that contract. If a tenant breaks the rental agreement before the termination date, the landlord can claim damages for loss of rental income, readvertising, redecorating, reasonable attorney fees, or other expenses caused by your breach of the contract. If you must break the contract, discuss it with the landlord to find if a reasonable cost can be agreed; get it in writing and signed by both parties so there is no misunderstanding at a later date.