We are a company based in Colorado that entered into an agreement with a business
/individual in Arizona. In brief, we agreed upon a deal that involved around $1500 on our end and one of the products we manufacture in exchange for roughly 12 items he manufactures.
Turn around time on his end was promised at one month time before beginning then two weeks maximum following that. The deal was negotiated via e-mail. We promptly paid and shipped him out our product he requested. Fast forward 8 months later after talking
to him every few weeks he says that he has just forgotten about our order completely. It'd be 6 weeks to complete if we wanted it, if he could finish it. I tell him that wasn't the agreement and that we need a refund and our item returned. By this point he
began devaluing his products due to him opening retail sales and made wholesalers like us useless. Almost 9 months in, he has blocked us from all forms of communication. He has told others he does not intend to finish our order and does not care about refunding
us or returning our item. We would now like to take him to small claims court but don't know the best route. He lives in Glendale, AZ we are in Denver, CO. I would not be able to serve him here in Colorado, and I have no problem flying to Arizona for court
if need be. What state would we be able to sue him the quickest in? Thank you in advance