How do Liquidators work? And how do you choose a good one?

I face the dreary task of closing up a business. We have some "hard" assets -- 13 desks, several servers, conference room table, PCs and lap tops. There are a lot of liquidators out there, but how do you find a good one? How do they work, on a percentage or a flat fee? Is there a rule of thumb for figuring out what our stuff is worth before we call one?
Thanks

They will usually buy all of your "stuff" for a flat amount, tho you can certainly make a counter offer to them. They are buying to resell at around 30-35 cents on the dollar, so you might expect around 10-15 cents on the dollar for your stuff.

I would contact the local chamber of commerce, or do a google search for liquidators, & then cross check any potential matches you find w the better business bureau to check for any complaints.

Hang in there, & Good Luck!