I have a paying California tenant with a now unauthorized dog

[Jeffery Pete]

I have a paying California tenant with a now unauthorized dog. Claims they only take care for friends? I have pictures

I have noticed these dogs in the past. The tenants may indeed be house sitting these dogs for extra money. However they are in the apartment and sometimes in the common areas while being supervised by the tenants.

This is in violation the rental agreement. I would like to keep paying tenants but I have no Pet agreement and pet security deposit.

What steps should I take with them to rectify the situation?

Is there a notice of violation I should serve at this point?

Any help you can provide would be greatly appreciated!

[Account Closed]

@Jeffery Pete we know with the memorandum there is not much landlords can do now with lease violation. I own 40 units in LA and what I have done in the past with situation like this is to add a lease addendum for pet and charge them. In my experience, all of them are willing to pay a monthly pet fee (I only charge $45 per pet) but I actually haven't done pet security deposit but I don't think it's a bad idea to do both.