New Landlord Looking for Landlord / Tenant Advise

[Kyle Huber]

I am a new landlord in Los Angeles as of little over year ago. Not new to the renting or some of the legal terms from prior issues when i was renting over 20 years.  I have a tenant trying to break his lease in terms of the security camera in plan visible site in common area/ kitchen living room,  was not disclosed on the lease. It was disclosed that the security system was on the house though. I want to know if this is possible to do and is a  breach of privacy if the house is noted on the lease that landlord lives there as well. 

Any advise from legal would be greatly appreciated.