That's good! Was it stuff about her not giving enough notice, or what?
No, it's more "fulltime students only" wasn't in the rental agreement, and it's too spurious a reason to evict me.
Okay, that's fair, but you said your lease was up for renewal... Maybe she can legitimately choose not to renew?
EDIT: Well, here's some pertinent sections in the Ontario rental regulations:
Renewal of a Lease Term
The landlord and tenant can agree to extend or renew the tenancy on the same terms and conditions, or on modified terms and conditions. If both parties can’t reach an agreement, once the lease expires, the tenancy automatically becomes a month-to-month arrangement.
Terminating a Tenancy (Lease): Notice and Timing
Prior to a lease terminating, it is the responsibility of landlord and tenant to re-negotiate terms or terminate the lease. Tenants can give notice during a fixed term lease, provided that the date of termination is not any earlier than the last day of the tenancy. Landlords may only terminate a tenancy for specified reasons as set out in the legislation and cannot terminate simply because a fixed term has expired. When a fixed term tenancy goes to a month to month term, the landlord cannot force a tenant to sign another lease or agree to another fixed term. When a lease is renewed, unless otherwise agreed, other than the new term of the lease, all other conditions of the lease remain the same with the exception of rent increases, which are not automatically carried forward. The landlord can raise the rent with 90 days written notice.
Landlords must provide notice in writing to the tenant, and required notice times vary depending on the reasons for the notice. Please refer to the detailed online and print brochures: "Terminating a Tenancy by a Tenant" and "Reasons for Terminating a Tenancy by a Landlord".
The tenant can terminate daily or weekly tenancies with 28 days written notice. Otherwise tenants must give 60 days notice when moving.
The list of reasons a landlord can request eviction is listed in full
here.
That said, again, it may be worth getting out of there before things get too hairy. She claims she wants to rent to students, so as long as you vacate before the fall, she'll be able to do so (which is really the issue - if you stay until, say October, she may well lose the school year).
A lot of how you proceed here depends on how much of a Queen Bitch she is. If you want to rules-lawyer this to the hilt, you can file various appeals and probably stay there for months on end if not a lot longer - if I interpret this right, simple termination of the lease if no grounds for eviction at all, and neither is "change of rental clientele". But it's better to just get out once you have some breathing room.