They also didn’t mention the funky 240 V power to the building.
What is that second tiny transformer on the pole for?!?
And the “how the hell is this still working” AC panel in the basement.
Been a bit wet while energized.
Gut the basement and first floor.
Put new electrical panel on the second floor.
Live on the second floor.
Put a 6-foot dike around it with pumps.