I have a pretty sensitive nose, so for me this is the process to eliminate just about any smoke odor:1.

After de-catting and de-dogging several units from the odor, fleas, hair and damage caused from urine, feces, scratching, digging.

Before replacing it I had it cleaned professionally but odor remained.  

I see no violation of my lease and no evidence of foul play at the home.

I honestly don't think you'll get a contractor, painter to GUARANTEE they can get rid of cat pee odor, if the apartment has been abused for that length of time.

Laminate was wet underneath in about a 2 foot area around that sides of the opening and when he pulled up a couple of pieces of the laminate there was a strong urine odor. 

If Trump tries to do nice things for RE investors the other side will scream foul and suggest self benefit agendas. 

I have a condo unit in Southern California that I recently rented out; however-- on the first day the tenant moved in, they notified me that they smelled a strong cigarette odor in the hallways, and it really bothered them.

In your Offer to Purchase, check the box [x] property to be delivered vacant at close of escrow.That way, no harm no foul if the deal falls through.

Usually the fines are for "Noxious Odors in common areas" or for excessive noise.