Have you thought about hiring an estate auction to come in and see if there's anything they can sell? We did that with my uncle's stuff. He was a hoarder and addicted to thrift shopping and "junking." His place was packed to the rafters. (Example: he had over 40 walking canes and never used a cane.) But he had a good eye for antiques (weird stuff, too, that we never realized was valuable). There were multiple auctions, but I think the total came in around $20,000-30,000. He had some very pricey mid-century modern furniture pieces that we knew would sell high (Eames, etc.), but then really strange stuff like antique wooden Bocci balls that were so old they were cracked that sold for $1200.
The key is finding an auction house that knows what you have and knows who to market it to. We were lucky in that my other uncle ran in the same "junking" circles and knew who to call.
I have thought about the auction house, but I don’t know that there is enough “good” stuff to make that worthwhile. I will certainly ask someone to take a look.
The problem is that he collected stuff that he thought would be valuable but really isn’t— ceramic Snow Village houses, Precious Moments, Jim Shore, Thomas Kinkade, Fenton, Bradford Exchange. The better older furniture in the family I will keep. A lot of the furniture that I won’t keep and that is not bad enough to just throw out is stuff my parents bought when they got married and not an antique. I will have a used furniture bank for poor people take it if no one will buy it for a few bucks.
He has model railroad stuff in the basement that I will get around to getting quotes on as one of the last things I tackle. I’m more concerned with the stuff upstairs. There’s stuff of mine in the basement to get rid of, stuff of his that is only fit for a dumpsters, and stuff not worth anything but in good enough shape to donate to the place in town that raises money for hospice care for the elderly or to sell at a garage sale if I feel like attempting that first and then giving the remainder away.