As long as the CCTV cameras are focusing only on common areas, i.e. hallways and stairways, there is no violation of the tenant's privacy. The tenant's sense that her privacy is being violated may be addressed with some discussion about the source of her concerns.
This is not a substitute for a consultation with a housing law or privacy rights attorney.
I am not a CA lawyer, but I don't see how this is an issue. If they weren't there and something happened to her, you could be liable.
This post is for information purposes only and does not constitute legal advice, nor does it establish an attorney client relationship with Mr. Cassara.
I agree with the two previous responses, and write to add that if the cameras only record common areas and hallways surrounding her unit, and no others, she may have a claim for disability discrimination because of the targeted action.
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