Mysterious Tenant

You are A landlord of an apartment complex And a few months ago a unknown tenant checked in and Payed for rent it was ok at first until you started noticing that the tons of stray cats on the streets were starting to reduce until one day when you went to collect the rent because the Regular Rent Collector was sick you opened an apartment’s door and saw some guy with his apartment room full of cats (Your Complex Bans animals in apartments)