(Let's assume for a moment that the seller/agent may not be honest, in other words I am asking how do you know other than "the listing agent said there is no lead.")Are there any other health hazard items that you check for before purchasing?

Also check out Habitat for Humanity Restore. 

Also, if I have to hear "mold in the vents and health hazard..." again, even though they have never provided verifiable evidence (simple mold kit test result), and have also made no attempt to vacate early, well....

I was contacted today by a Mental Health Professional about one of my units that is for rent.

In return, the people received cash, training, education, and health care.

HUGE chance that one or both had Medicaid, which can be a deal breaker if your courts require to notify your state health care dept.

Good health.

I could see this out in the county with no city jurisdiction, but fire department, health department?  

This is far removed from the laissez faire capitalism that is responsible for the majority if not all of responsible human progress.

I don't see any issues other than decontamination aspects and that cost may well be covered by health departments.