Legal entrepreneurship is booming, and David Perla can rightly say that he saw it coming. David co-founded and ran legal process outsourcing giant Pangea3 to more than 1,000 employees around the world, before the company was purchased by Thomson Reuters. He has characterized the boom in legal tech startups, and funding for them, as the pre-Cambrian moment just before diversification and rapid evolution – as evidenced by the estimated $458M invested in 414 legal startups recently. But it’s not all Utopia. David’s advice to legal startups is direct: If you want to survive, learn to sell.