If it was me, I would not get rehome Zoe for that reason. CoCo is very bad about going to my parents room and peeing on their bed. The simple solution was just to shut the door so CoCo could not get in there again. That is what we have done and it has not been peed on since.

I would never get rehome CoCo for that reason. It has never crossed my family's mind, but you have to do what's right for your family and your dog. Good luck with it.