I have a friend whose childhood home likely looks like that or worse. I think I was last in that house 25 years ago (it still looked fine then). Around 20 years ago, he told me I had to wait in the car while he went inside as his mom didn't even want anyone so much as coming to the front door. Around 15 years ago, Friend said it had gotten so bad inside that his mom wouldn't even let *him* in the house. I know that, for one, there was a growing mold issue on the wall between the two bathrooms (I never saw it; Friend told me about it). Friend said the mold had gotten so bad that the wall between the two bathrooms collapsed. It's a shame because it was a decent house from what I remember (I'd been there a few times as a teen and young adult). Friend's two brothers (who are middle-aged adults now) were unemployed and living with their mother and did nothing to clean up after themselves (and would never listen to her). Between the three of them, the house steadily deteriorated. A few years ago, Friend assumed the mortgage so that his mother wouldn't end up homeless but told me that if he's paying for the house, he sure as hell was going to go inside. I've never asked him what it looks like inside and won't (plus his family is a sore point as they treat him like crap -- they take money from him to keep them afloat but still treat him like crap). Anyway, I can't imagine it looks (or smells) good and, given the mold issue, probably does need to be demo'd.