Legal Question in Intellectual Property in Georgia

First of all, since you posted in the wrong area (intellectual property, which deals with copyright and patent law), most collections lawyers missed your post. But the answer is you don't get the mower. Since you're a business, and that means you have a business lawyer and use written contracts, you should already know your remedies,but your best remedies are in your contract. Likely you'll simply sue the customer and hopefully have worked good remedies into your contracts.