Smart Locks and Security Cameras Legal Issues?

[Hong Yang]

Has anyone tried installing wifi locks and security cameras for their long term rental? I know its pretty common in short term rentals, but I'm not sure about the legal implications. 

I assume you have to give your tenant a physical key.

However, it seems like a major convenience because you can remotely unlock the place or show it to future tenants without being there in person. Also if the tenant locks themselves out you can easily let them back in.

The doorbell camera can't monitor the inside of the rental unit, but it can capture funny business. Like if the tenant brings in an AC when the lease explicitly states no AC.