Just found this thread. Sounds like Riddick has the best location for a cat like him! He just needs to get adjusted a bit. Glad to hear the second male is also neutered.

If he shows up on your doorstep AGAIN, well, then you know he is picking YOU.

By the way if/when you move, check into local ordinances first. Cranston RI passed a new law over the summer, maximum 3 cats per household! Here in East Providence, we have a limit of 3 dogs, but no limit on cats. When we strted traveling back and forth to my Dad's house, I checked with their laws, too. They, um, definitely don't allow SEVEN cats in one household! Good thing we just "visit!"