I eventually finished the project and had moved across the US in the process where I finally received payment. After many years of free support, and even some free hosting — I instructed the client to pay for their hosting and I would transfer the site to the new server. This request was never met, so I pulled the plug on the site and archived the files. Yesterday, I received a demand letter from an attorney requesting I send the code, data and content to the client. I was threatened with court seeking personal property seizure and/or wage garnishment with no monetary amount mentioned. I am fine with sending the data/content. But the code itself contains a few 'trade' secrets and redistributable code. My understanding is that the code belongs to me, the author under US copyright law. Is it reasonable to require monetary reimbursement to give ownership of all the site code? How would this case go over in a court?