Another way of looking at it is whether you should punish the landlord for attempting to steal your money, with the extra $1000 being an incentive/payment for y

Another way of looking at it is whether you should punish the landlord for attempting to steal your money, with the extra $1000 being an incentive/payment for your time. I don't think there's a moral obligation to do so, but it definitely improves the world if landlords are afraid to try this tactic on others.