Haha, it collects in a low spot near some exposed wiring on the corner of the house where the main breaker is located.

We had an old upper unit with electric heat that had a completely exposed open patio underneath the entire somewhat insulated floor.

it's being exposed.

Can you see any exposed wiring?

My fear is that if they were exposed to lead paint, I might be in trouble if I was the owner, even if I'd be taking immediate action.Do you think that there is a chance that every unit could have lead paint?

Garbage Disposal Removed: Wires under sink are exposed 7. 

I think this will expose me to some aspects of buy & hold REI.

Ungrounded (2 prong outlets) would not be unusual in an older home but you should have GFI  in the kitchen and bath and no exposed wiring.

If you don't have to be exposed to a risk, don't be.Transfer it, if you can't avoid it.

The mix of an old (4) fuse panel with an old breaker panel and A LOT of outlets, many doubled up into 4's, plus home handyman looking issues on the fuse panel (missing screws, exposed wiring), to me would mean having an expert look at the wiring in the house and if needed making a bid to repair it.That rats nest of exposed wired next to this fuse box might be live electrical current, it's probably best not to touch it.Good Luck!