A whopper of a late summer for M&A lawyers grew even fatter Thursday, when Burger King announced its sale to investment firm 3G Capital for $4 billion. Four Am Law 100 firms landed key legal advisory roles on the deal, which will return the world’s second-largest hamburger chain to the private sector.

Eileen Nugent, co-head of the private equity group at Skadden, Arps, Slate, Meagher & Flom, led a team from the firm advising Burger King that included M&A partners Thomas Greenberg and Richard Grossman, employee benefits chair Stuart Alperin, and banking practice partners James Douglas and Julia Czarniak.