B.C.
We have a neighbor a block down where the kids were getting sick - to the point where they were vomiting blood.
Turned out their house had killer black mold (the house is over 100 yrs old).
Seriously - it was condemned.
They got a trailer moved onto their property and lived in that.
The bank would not let them tear down their old house to build a new one on the same spot, so they built a new house next to it (properties out here are 3-5 acres) - they got churches and other volunteers to do as much work on it as possible - and they can destroy the old one after the new one is built.
They've recently moved into the new house (their health problems cleared up dramatically once they stopped living in the old house), the trailer has been removed, and they are slowly taking the old house apart themselves (they wear masks when they go into it) - they have nightly bonfires burning up wood and a dumpster comes periodically when they have non burnable material to throw away.
It's been a nightmare for them, and it's taken several years to get through this, but they are almost finished.
It can be done, but it won't be quick or easy.