Cat on site

[David Dorau]

I just got a new complex and one of the apartments has a cat in their room I was not told about. The Lease states no pets, however the previous manager said that apartment is his best as far as paying rent. Lease does not specify a fee or consequences for a pet. I do not want to evict but also have no knowledge on the right way to handle this. I would probably add on $25 a month and try to collect additional deposit? I have been reading about bad cat stories though. Any recommendations?