DMCA Takedown | fanfiction and derivative works

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

I've been trying to resolve this on my own but I'm stuck.

fanfiction and derivative works. I've been dealing with this for about 11 weeks now and the situation isn't improving.

This involves content I created over the past 14 months. I do not have documentation proving my ownership and timeline.

What's the typical outcome in situations like this?