Moving into an apartment is exciting. But, there may be some areas you’re little gray about. Such as, should you change the locks on your door or not? If you didn’t square this away with your landlord before moving in, you may feel confused about what to do. You may want to change the locks if you’re not sure whether the previous owner has a set or not. It all depends on what the lease says. In most places, it is required that you tell the landlord before doing so.