Sounds exactly like what you're afraid of. He's milking you for free consulting. Tell him no designs will be forthcoming until he signs a legally binding contra

Sounds exactly like what you're afraid of. He's milking you for free consulting. Tell him no designs will be forthcoming until he signs a legally binding contract and/or the first payment is made, depending on how you operate. I would assume that if you give him everything for free, he won't turn around and pay you after the fact.