Verifying Merchants and Businesses as being No Longer Posted

If you volunteer to verify that a merchant or business is no longer posted, recognize the fact that the signs may have simply been moved elsewhere on the premises.  You need to do a physical walk-through.  Check every entrance inside and out... THOROUGHLY. Ask the owner or management if necessary and don't forget to thank them.  If unposted, return your patronage and let them know why.