So sorry about your sweet girl, Nova. That would be a nightmare. I do worry about the adopter having dogs. They are enclosed in a run and seem pretty sweet. One is an Australian Shepherd, and the adopter said one night she forgot to let one of her girls into the coop for the night (I hope this doesn't happen to my roo), and her dog alerted her to the fact that the hen was still outside, protecting her. I thought that was a good story. But I have heard dogs can turn mean at any moment and kill chickens. They do seem aware of this, though, so I hope it won't be a problem.
For that matter, a pack of roaming dogs could come through my property when my Good Guy is out free-ranging and get him, and it is probably a bigger risk here than at her house, where the property is encircled by a chain link fence with bricks under it (making it hard for a raccoon or other predator to dig under it)?