How long have you been a tenant? How long is left on your lease? What does the agreement say, exactly? If you have been there awhile, this might seem to be a unilateral attempt to modify the lease terms. Realistically, you should try to work things out with the owner.
The above is not intended to be legal advice, but may be used for general information. Please contact an attorney for specific help tailored to your needs. www.figgardenlaw.com