Quote from @Cara Fazio: I just had tenants move out a week ago and have incurred some significant expenses getting it cleaned and ready for new occupants. This is a class A rental that was spotless when the tenants moved in 1.5 years ago. These tenants had a large dog that was the source of most of the damage. We did our best to clean the affected areas and avoid replacement, but we ended up having to go the replacement rout after spending considerable $$ trying to clean.