Try to look at the agreement as if you were the retailer. I've been doing wholesale for about 4 years now, and have never found it necessary to have an agreement of this type. Almost all of my retailers pay by credit card, which I charge the same day I ship. I have found, by trial and error, that it's best to have a specific line and number of items that you offer wholesale; some of the items I make for craft fairs & direct retail are too time consuming, etc. to offer wholesale. Hope this helps - going from retail (craft fairs) to wholesale is a big jump and needs some very careful consideration.