Oh Lisa.... I just hate this for you!!! I do believe that it is time Mr. Magoo went somewhere else.... whether it be your shelter, or another. It's not fair to your other cats to have to be so stressed, and then to end up having to be medicated??? I just don't think that's a fair trade for them, do you? You have tried everything feasible for Magoo, and your home just isn't going to work for him. Yes, he has taken to your husband but I bet if he could find another "one cat" home, he would bond with someone else as well.

The only other thing I might try (if I were in your shoes) would be to make some sort of outdoor enclosure for him, or let him be a garage kitty .... if either of these ideas would work for your home. Other than that, I just don't know!

Please know that whatever you decide to do, you have my complete support!!!!

(((((((((HUGS))))))))))))