[S]ources have indicated in the last week that Cadwalader has been speaking with multiple firms lately and the pace of talks has picked up. One source familiar with the circumstances described the set of courters as a rolling group of three. Sources say possible merger partner firms are likely ranked in the Am Law 25 to Am Law 50 range - where firms' gross revenues exceed $1 billion - and are generally interested in Cadwalader's corporate practices and its large New York office. Cadwalader, ranked No. 85 in the Am Law 100, generated $638 million in gross revenue last year.