It sounds like you are infected with a very expensive disease I call the "hardly waits".How do I know? 

I swear I saw the roaches litterly attack the bait and the product goes a long way. if the place is vacant, leave the dead roaches and the live ones will eat the infected dead, expediting the process. seems to work for camel crickets too I've just tried this stuff for a small roach problem and haven't spotted one since. as others advise, clean and get rid of food source.

I've used a HELOC to pay property taxes rather than take from other investments) buy automobile, etc.

Talk about being infected with terminal entitlement disease!

Starts with setting up plastic containment around mold infected area, negative air HEPA filters, drywall and insulation removal, literally scrubbing studs with wire brushes, and treating with chemicals.

@Joel Florek the living people are the ones you need to be concerned about infecting you; no special cleanup is necessary, there may be a small amount of discharge (urine/feces) after someone passes.

Cut the losses and move on before the wound gets infected.

You wouldn't know what they're infected with. 

Private real estate helps investors temper the volatility in their portfolios because it’s immune to the daily shocks of trading.The value of a private real estate fund is based on the actual value of property held by the fund.

Land will be used mostly to store materials/automobiles, but he would like the option of also setting up a new office on the location, so if there is a small building in place, that may be preferred.