More facts are needed. You say you are "6 months into a 12 month lease." If it really is a 12-month term lease, then I question whether the notice is proper. Based on the facts you present, your landlord does not appear to have any "cause" to terminate your lease.
In a periodic (month to month) tenancy, the landlord does not need cause, and can simply terminate the lease after providing statutory notice. A term lease is different, and obligates the landlord to provide the premises to you for the specified term, as long as you continue to uphold your part of the bargain (e.g. mainly to pay rent on time).
You should probably show you written lease to a landlord-tenant attorney in your area, who will probably send a letter to your landlord. Good luck.