I hired someone to appraise and hold an estate sale for my late aunt's estate, since I was her executor. Smartest way I could have handled it. They found things in places I didn't know the house even came with, like the closets in the garage where they found a bunch of vintage clothing. Members of my family had lived in that house since 1935 (this was 2012) so I knew there'd be a lot of stuff, but the amount that was actually there was unbelievable. About the only thing that was even somewhat valuable was an antique secretary that had been in the house since at least the 1940s. It showed very prominently in a photo of my dad when he was 13-14 years old, and my dad is 83, so we could prove it was at least c. 65 years old. Plus, the estate sale lady, who also owned the local antique shop, asked me if the chair that was with it was the original seat, and my dad told me that as far back as he could remember that chair had been with that desk.
Lots of junk in that house...plus a few things that were priceless (to me), like pictures of my great-great grandparents.