I had to dispose of everything in a friends house that I am POA for.
It was difficult. Everything was priced, but offers were accepted.
We were stuck with a ton of stuff no one wanted. Everything was in great shape....she lived alone. It was way too much work and not worth it.
I had my two sons and three nephews carrying heavy stuff and they helped with packing. There is no way you can do it alone.
We ended up giving a lot of things away, just to get rid of it and not having to pack it up for donating.
Tons of stuff ended up in the dump. Charities won't take everything. Expensive collectibles and holiday decor was difficult to sell and donate. We ended up tossing it.
If I had to do it again, I would sell by auction. I have gone to estate auctions and pretty much everything sells.
I would sell the items you think you for sure know you could get a great price for outright, then auction the rest.