Can the landlord send us a one-month eviction notice because we have a pet?

After the expiry of the contract, the landlord sent us a notarized notice asking us to evacuate the apartment within one month from date of receiving the notice stating because we have a pet in the apartment as we are breaching our tenancy agreement.

It is pertinent to note that our pet has been a part of our household for over 2 years, and the landlord staff are aware of this fact. It is further worth noting that the presence of pets in the building has been a prevailing and recognized circumstance since 2018.

The building's has CCTV to confirm the long-standing presence of pets in the building since 2018.

Additionally, I recall that notices were posted in the past near the elevator, explicitly instructing pet owners to use the stairs rather than the elevator, which demonstrates the building management's acknowledgment and accommodation of pets.

They have also renewed leases for three other pet owners, reinforcing the building's established acceptance of pets.

Please advise.