Below you see a beam behind the heating duct. The beam has no support underneath it. Most beams that hold up houses are triple 2×12. These are about half the size
This was just one of many items found when we took a stroll through the crawl space. You can also see the brick foundation displacement on left side.
Here is another 6×6 beam that is supporting one of the floor joists. As you can see the side coming towards us has no support whatsoever. From the outside it was a beautiful looking home. Underneath we found a bunch of termite damage along gravity defying construction practices.