Wow, What a coincedence!As you say,what are the odd?
I too wouldn’t buy such a house. As you say,they have a lower sales value,and I believe that  by law it has to be disclosed to the potenial buyer,just like if a home is haunted. Years ago a couple bought a house in New York state, and later sued the realtor who sold them the house, because they neglected to to the people the place was haunted.This couple by the way,won the suit.