that is a red flag. unless, you know them personally.
inviting friends or family members to join your yard sale is a great way to add eye candy and entice a large crowd, plus it shares the work load.
if they are not going to be at your sale, make sure they write down the bottom line they are willing to sell their items for. nothing is worse thank tracking down someone to see if they will take $4.00 instead of $6.00 when you have a crowd.
most (not all) yard sale customers will ask you to take less than the sticker price. i know this ahead of time so i price my 