Morrison & Foerster‘s Gordon Erspamer has been in the news lately but not, as it turns out, for his primary practice area, energy litigation. The senior counsel and several of his colleagues have been working pro bono to challenge the government’s treatment of veterans with Post-Traumatic Stress Disorder in a headline-grabbing federal trial in San Francisco — one Erspamer thinks is a likely candidate for the U.S. Supreme Court.

So how do lawyers land these kinds of juicy pro bono cases? The answer, it seems, is a mix of who you know, what you’ve told them and what you’ve gotten yourself involved in before.