Washed with TSP and Enzyme treatments.

Apply enzyme detergent, blot. 4.

It's better than Kilz and I wish I had known about it when I did mine. http://www.biggerpockets.com/forums/67/topics/78889-smoker-rehab-keys-to-success-with-tobacco-smoke--before-after-picshttp://www.biggerpockets.com/renewsblog/2012/11/05/getting-rid-tough-odors/I know for pet odors there are some enzyme neutralizers, you may want to get some for the sub floor under the carpet areas help with that.http://www.biggerpockets.com/forums/67/topics/74253-cat-pee-in-concreteThe biggest cheap first step is to just literally wash everything down.

We close on it next Wednesday and I have done quite a bit of research on how to get out the smell.I purchased a product called " Mister Max Anti Icky Poo" weird name I know, but this is an enzyme that will break a lot of the chemical bonds in the urine.

It is an enzyme that actually eats the urine. 

.$  30.00*Pet urine and feces on the tiled floor**2 hours of cleaning………………………………………$ 150.00**Spot Comp Pet - enzyme cleaner.……………….…….$     4.49**Pet Odor Eliminating Spray………………………..........$     3.98*                                                                    Total          $ 2508.47                                                       Minusdeposit     $  995.00                                                         Total……………$1513.47                                           Discounted total if paid by Oct 20...$ 999.53We are willing to drop thefees in asterisk lines items if this can resolved by Monday the twentieth ofOctober, 10/20/2014.

I have used two gallons of enzyme cleaner, smell still remains pretty potent.

Cat is a maybe, maybe not.I suggest that you give the stains a good soak with an enzyme cleaner, let it dry, and then paint.Paint is cheap enough so you don't lose anything by trying.

I usually throw everything on the floor out, soak the place with quality enzymes designed for pet urine, and clean everything thoroughly. 

I don't remember what it was called, but when I cleaned carpets years ago, we used an enzyme on the slab (I think it was called Microban)after removing the carpet and padding.