I would be careful hiring this company.The owners have an auction and many times buy items prior to the sale or prices items too high so they end up in their auction.
Clearly a conflict of interest. Also they arrange it for their friends to get the best stuff before the general public.
My parents had them do a sale and the high end items went missing...they were told after the fact they were going to auction.. which in turn resulted in them getting a higher percentage.
I'm pretty sure this is not common practice.I would not trust them