How do you get ghost sims out of your households without taking them to Never?

Okay so one of my sims in a different household died and so I went and got their tombstone and placed it on my lot and put it to were the ghost could walk around the world and my property. Then the ghost came out of the tombstone and so I added it to my household but now I don't want it in my houehold but I also don't want it to be in the Neverworld or in a different household. Does anyone know what I could do to fix this?