Hmmm, I have two bad dogs and one imperious cat, but my house neither looks nor smells like it. Even as a (multiple) pet owner, when we were house hunting, anything that smelled or had pet damage moved way down on our list. Way down both as in if we were even willing to buy and as in how much we would lower our offer. Why shoot yourself in the foot? People will see the pet damage and assume that you neglected the whole house, which is a bad message to give a buyer. Sure, your spouse may want out, but at what cost?