The Firm: This solid practice continues to build on its reputation within the private equity market. The team is appreciated for its capacity to manage sophisticated transactions and its excellent client service. It counts Ares Management and Oaktree Capital Management among its clientele and recently assisted on Grifols S.A.'s $4 billion acquisition of Talecris Biotherapeutics.

Sources Say: "The client service is terrific. The lawyers are very efficient and available when we need them."

Key Individuals: West Coast partner Michael Woronoff played a lead role in the $1.6 billion acquisition of 99 Cents Only Stores for Ares Management. "He really is an exceptional private equity lawyer," say sources.

Stephen Rubin is known for his representation of private equity sponsors in addition to his prowess in debt-related matters.