alt Hacker News"Larry will receive" answers your question.
But elsewhere on their website, on the Submit a Case FAQ, they do say very clearly: "Will this cost me anything? No. FIRE is a charitable, non-profit organization and does not charge for any of its services."
Okay, that's for FIRE's part, but they worked with another law firm:
"Represented by the Foundation for Individual Rights and Expression and Phillips & Phillips, PLLC"