@Tony SanFilippoCat Pee Flip.. yup did a 4 br house,, the attached garage was her cat kennel.. pee up to the rafters.. and they got in crawl space from garage to behind the fire place.. so all the insulation between garage and house was reeking with cat pee and odor,, so off came the sheet rock between house and garage and interior on same common wall.. we had to Kilz the fireplace block up to the roof.. interior brick was ok but all way up to roof of garage was bad.

(my agent sent me the document only an hour earlier)Now the sellers agent is crying that he made a mistake for accepting the lower offer and that my acceptance 15 minutes after the deadline disqualifies my offer but they will use it as a back up.I'm crying foul.

Then we primed with Kilz just be cautious if it is the oil based one it will have a very strong odor, after priming we painted the entire unit. 

Place was clean, neat, no bad odors, no junk...

Is there an odor?

Yes, pets caused the odor and we had to have that treated,  so gross.I am 100% sure that he's not getting his damage deposit back, nor the non-refundable pet deposit.  

The dog odor was awful, carpets disgusting, bathtubs filthy, etc. 

No harm no foul.

I mean, a Home, Retail Store, Animal Hospital, Nail Salon, or many things would be great beside of our building as they do not produce foul gasses, odors, and vibrating our building for hours a week.

At this point I’m incredibly frustrated, so I fire back with a heated email (no foul language, though I was sorely tempted), CC-ing the customer service lead, Nathan Grey.