Air circulation is the key, its the standing air that causes the smell.

Happy to help set-up once emails get circulated.

The descent deals get written up in a memorandum of offering and are circulated to a few brokers' client lists and are sold.Loopnet is where the unloved and overpriced congregate.There are occasional exceptions.  

Then he says after I am done can I flood the basement , put in pool chlorine and a pump to circulate it to kill the cat urine smell since he has to use the existing foundation , and to bleach the rest of the house . 

I think I'll take advantage of this, installing locked gates for easy access, and reasonably spaced pickets for circulation.

I have built my own circulating system in the past (at a camp).  

Tenant agrees to take due precaution against freezing water or waste pipes and stoppage of same in and about said premises.This includes, but is not limited to disconnecting all garden hoses from outdoor faucets prior to freezing weather and opening cabinets under fixtures that are adjacent to outside walls to allow warm air circulation near water and waste pipes.If water or waste pipes are frozen Tenant will notify Landlord immediately and in writing.If Tenant did not take due precaution to prevent the freezing and/or fails to notify Landlord of a problem in a timely manner, Tenant will be held liable for all damage caused thereby.

Are the in-line heaters in the units or does the system include circulation?

The only time that you get hot water in the shower is when the heat is on in the apartment and the water is circulating through the heating pipes.

In most states, there's also alternate ways to complete the service (i.e. publication in a newspaper of general circulation, etc).