When renewing a lease, a landlord and tenant exchanged text messages about the terms of the lease and agreed to some changes. The changes were noted by the landlord on a copy of the lease, which was provided to the tenant, but the new lease was not signed. The tenant does not want to abide by the amended notice provision, which increased the period of notice to end the tenancy from thirty days to sixty. Can the landlord hold the tenant responsible for an additional month's rent if the tenant gives only thirty days notice?

