LazyBlawg Invocation: Ernie helping starving artists

Ernie: One of the problems that artists are having is people appropriating their artwork and using it on the Internet without permission. That is what lawyers might refer to as a clear-cut copyright violation. I've agreed to help out, which means drafting and sending cease-and-desist letters to the scofflaws, and then possibly filing suit.

I would like to get involved, but I'm wondering if there any issues involved in helping artists outside of your admitted jurisdiction. Does our resident ethics blawger have any information on this.