Bit of a long back story to start: I live in a rural area with about an acre that's 'securely' (ha ha) fenced around the house, with my family of 4 adult and 1 kitten indoor-outdoor cats (all spay/neuter of course). The fence always kept out strays until February when a very determined 2 year old tom "Wiley" dug beneath it and took up residence under my house. Many fights with my adult boy cats ensued but this guy would not move on. 2 months ago I had him neutered/vacc/chipped to try to integrate him into the family. He's become extremely affectionate to me, I can pick him up and carrying him around, and he loves being in the house. He really ripped up his feral card. I did all the usual things, he has his own room with a screen door and screened access to the back deck for fresh air, and I let him into the house and yard for a few hours every day. But my two older boy cats still hate and fear him. Every time I've tried to let them out together in the yard they have a huge fight. If I let them in the house together, they glare at each other and if I don't seperate them after awhile they end up fighting. I can't keep being a personal revolving door for the cats this way. I also can't keep Wiley in his room all the time, he cries and bangs on the screen and wants to be with me in the house. (which isn't large). This isn't my first rodeo, I've had decades of experience having a family of cats and introducing a new cat (rarely an adult though). But this time it hasn't been going well and me and all the cats are stressed out. I don't know what, if anything, I can do differently to make this work, or should I give up and try to find him another home (extremely difficult out here). The other problem is he and the kitten have been getting along well and playing together, so if I can't rehome him soon they'll be bonded and that will be another whole issue if I have to rehome him.
Any suggestions?
Any suggestions?