My fanfic is one hundred percent original, and somebodys infringing on it. What do I do?
First, register it with the Copyright Bureau. This involves sending them a couple of copies for the US Library of Congress, a form, and a filing fee. You can proceed without registration, but the case will get stalled until the registration goes through. Then, take the sucker to court. If you’re not a lawyer, you can hire one. Of course, that costs a lot of money… it’s really not worth it to pursue legal means.