I'm pretty sure facebook marketplace doesn't satisfy the legal requirement for selling lien items through a public auction. That would also be difficult to call out on your newspaper ad. Not an attorney though, so you'd want to consult with one before going that route for sure. There are a ton of professional storage auction sites to use (storageauctions.com, storagetreasures.com, lockerfox, etc). Storageauctions.com is definitely a good one, and their reps will help you get an account set up and will help you get your auctions loaded.
------------------------------
Katie Cowen
Move It Self Storage, LP
Dallas TX
(214) 389-3939, x 5501
------------------------------