[astura]

>My real estate agent toward me

Don't ever trust anything a real estate agent tells you, especially if that agent stands to gain financially from your actions; they are the "used car salesmen" for houses. They lie.

>only one case did another ever admit to knowing of a problem where signing off on the proper lead paint/radon/asbestos warnings.

A problem? Like the existence of them? You should test for radon before buying a house, so you'll know. I have friends who turned down a house with high levels of radon because the seller wasn't willing to negotiate for radon remediation. Lead paint isn't a concern as long as it is undisturbed, however, you need to treat every house built before 1980 as having lead paint. Asbestos? I have asbestos in my house, which was disclosed to me, but it was professionally wrapped, so safe as long as it remains so. Pretty much every house that's as old as mine contains asbestos, at least in my neighborhood. So it doesn't effect the value of it at all, as long as it's wrapped.