Remote Video Guarding strengthens parking security by expanding the real-time monitoring perimeter with dispersed cameras that can instantly alert remote operators and on-site staff to potential issues before incidents occur.Remote monitors can verbally confront potential bad actors using on-location audio or notify law enforcement with video-verified detection which generates response as much as five times faster than an unverified alarm.COMMON SPACESShared amenities like lounges, rooftops and pools inevitably draw occupants after hours.

If you feel that the BF is living on the premises without a lease, then I would encourage you to confront the lease holder about the situation and let them know that either the BF needs to be placed on the lease OR she will have her lease either terminated or not renewed (whichever your lease allows). 

Agree with others above about NOT confronting the visitor.

Therese confronted this question when she decided to continue flipping virtually in the Colorado market.

Should I send him the video, confront, end the lease?

(Build rapport) It's much more effective than being aggressive and coming off as confrontational.

Don't be confrontational, be neighborly. 

Confronted tenant and it was the baby’s daddy.

I'd spend a couple of $ and do a criminal background check on him before sending letters or confronting him. 

Alternatively, and I think this is the real issue, you are going to have to get over your fear of confronting this issue head-on.