Michigan Says We May Have Unclaimed Property And Guess What? I Do Monday was National Unclaimed Property Day, and the state of Michigan wants you to, in their own words, "take time out of (your) busy schedules to check if they have lost or abandoned property". I normally just roll my eyes on these things, but...hold on, I went to the state's site for this kind of stuff, and there's something there waiting for me. So maybe you do to. It could be it's cash or property, and you just don't know it. That's where the Department of Treasury says visit the Michigan Unclaimed Property website. The site provides "enhanced" search options and the ability to upload verifying documentation easily and securely. I haven't gotten that far, as I'm at work, but who knows. It's from a reputable business (a cable company. Stop snickering.)