Is this normal? (client reselling my photography)

I publish illustrative scenarios prepared by my practice. All participants and conversations are fictional. The fictional posts are not posts by real users, accounts of client experiences, or reports of actual results.
Illustrative scenario prepared by my practice.
For informational purposes only. This is not legal advice. Laws vary by jurisdiction. Consult a qualified attorney for advice specific to your situation.
Hypothetical question

Has anyone dealt with something like this? I'm not sure what my options are.

client reselling my photography. I've been dealing with this for about 11 weeks now and the situation isn't improving.

This involves software/code I developed over the past 8 months. I do not have documentation proving my ownership and timeline.

What are my legal options here? Is it worth pursuing?

Illustrative response

Here's my take on the legal issues.

The legal framework here involves both federal and state law. At the federal level, the Lanham Act. Your state may provide additional protections.

Before taking legal action, consider sending a formal demand letter. In many cases, this alone resolves the issue.

Illustrative response

Not a lawyer, but I have direct experience with this.

The trap most people fall into is hiring an attorney to send the initial letter. I'd recommend being patient with the process instead.

Illustrative response

Fair use is a defense, not a right. The four factors (purpose, nature, amount, market effect) are balanced on a case-by-case basis. Transformative use helps, but it doesn't guarantee fair use.