And their bedding with urine and feces will spill onto the floor/carpet.  

The smell of cat urine is literally seeping out of the front door.  

They will spray urine to mark territory.

@John FiastroGo with the hardwoods it will reduce your ongoing costs.We do a light buff and then put several poly coats to seal the floors against liquids (beer, urine, juice etc.)Another great product is vinyl allure flooring.

And they might dig (mine would if I had a yard) and make it difficult to keep a lawn green because of urine, and the owner might not be great about cleaning up the poo, or might think just mowing it is a great idea, which of course, stinks to high heaven and it's not the greatest fertilizer for the lawn, either...So, even great dogs and great dog owners will do more damage than a tenant without one.Is that worth more rent?  

She opens the door to the unit and it is the most disgusting place I have ever seen or smelled (human urine).  

The master bedroom was saturated with urine so we'll see how they leave it.  

Once I helped out some friends that had one tenant pass away from alcohol, the son was a complete mess with drugs urinating and defecating on the floor and on top of all that they were hoarders.

I have now restricted the rental to just one person for the foreseeable future.INFO: 4 months left on the lease and almost all of one floor turned out to be sprayed and urine contaminated.

Needless to say, the toilet seat was also broken and urinating through a window screen is not a clean affair lol.I didn't kick them out because of the damage, I kicked them out because of the behavior, and then deducted the damage from their security deposit.And, this wasn't an eviction.