You think a seller would want to find out the day before closing, after they've moved out, that you can't get financing and you get your EM back, no harm no foul?  

Cat piss is the smell of money.  

@Joel Owens, the only downside is that for the first week or so, you will be overwhelmed with the smell of vinyl.

Do a smell test on the numbers yourself.  

We also had a crawlspace company place the thick mil vapor barrier down there but it still always smelled musty when opening the access door. 

Something smells funny.....

We went to look at the house [ I know, but they go that fast here] I saw the house and told the realtor that we were not going to accept their offer because there was no backyard, and because the smell o cat urine was so strong  and I did no know how to get rid of it.

I've had more than one conversation with each dog-owning tenant, gently reminding them of the "pet waste" agreement, and saying that I basically don't want to see, smell, or step in dog poop anywhere on the property, pointing out that it's a health-and-safety issue, not just about pleasing me.Still, I see dog poop when I'm visiting the property--and I don't go looking for it.

All, Looking at a house that has a bad smell in it, they had dogs and a smoker.  

I'm not a fan of cats though, in fact I was looking at a property today that as soon as we opened the door, you were about knocked over by the smell of cat urine.