You certainly can wire cameras even if you are a renter, without doing any damage to the property. It is no different than running a wire to your computer from a router in another room. You just can't poke a bunch of holes in the wall. I'm not a renter, but I don't want my camera on a network or susceptible to jammers so I have a camera on my porch with a 50' wire running inside the small gap at the upper corner of my door, and up the stairs.