Buying a home pre-1978 is a mess. Every contractor asks "what year is the home". If you state something before 1978 - they wont open a wall, touch old tiles, do roof work, etc. Contractors immediately offer one of their friends to do asbestos removal or lead work. I had water leak in a 1967 home. Just to throw away plaster walls cost a fortune: "hazardous material". It looked like a sci-fi movie people in full outfits, full plastic wrapped rooms, negative pressure systems, air locks. My home insurance wouldn't pay - then dropped me that year.