Do they ever!
I buy distressed properties, often from landlords at their wits' end. People leave their mementos, nice clothes, family albums, kids' trophies, all the trash they have accumulated and I mean ALL -- as if they didn't pay to haul it for months -- and furniture, and vermin, such as fleas, rats, bats in the attic, and sometimes even their pets, alive or dead. (That said, a few leave hidden stashes of money, which is always fun to encounter.)
A 30-yard dumpster (or two!) isn't cheap, but the property always is, so I don't mind the expense, but it's mind-boggling to see what people leave behind when they didn't die or go to prison and had months of opportunity to remove their belongings after eviction.
I'm always donating good stuff to local charities, they're almost as grateful as the neighbors of the vanished tenants.
How much does it cost to clean up a hoarder home? Structurally, probably fine, but the accumulated junk needs to go.
“People leave their mementos,”
I have 1 rental. Had to evict tenants once. The guy basically went nuts. I filled a 20 yard dumpster with what he left behind, and it wasn’t furniture. I could not believe the personal stuff he left behind. There was so much I didn’t have time to sort out valuables. Unless something really stood out and had obvious cash value it went into the dumpster. I found a box full of documentation of the life of the exwife’s brother who committed suicide. There was nothing I could do with it but throw it in the dumpster. Sad.