Omega-3 Improves Your Pet Health

I received a “notice to ‘Cure’, which states I am in violation of my lease as I have placed multiple cats in the apartment without the landlord prior written consent.” I have lived in this apartment for more than 15 years, and I have had my cats for about 6 years and never received a complaint. I had no written consent because I was never aware I needed one. All my cats are spayed/neutered and in good health. Also there are a lot of people with pets in this building, I am not the only one. The superintendent always knew about this and never said anything. The old landlord sold the apartment and now I am getting this notice from the new landlord. The whole building knows about my cats and nobody ever complained. What can I do in this situation? I have been given until the 31st to ‘”remedy this problem or face removal of the premises.” What are my rights as a tenant with pets? Please help I don’t want to lose my pets or my apartment. 10 days is not enough time.