In a rare move of bringing in an outsider to run a law firm, Philadelphia-based Dilworth Paxson, with about 100 lawyers worldwide, has found its new leader from the ranks of 1,700-lawyer Reed Smith’s rainmakers.

Ajay Raju, a top rainmaker and former leader of Reed Smith’s Philadelphia office, is leaving the firm to serve as the first CEO of Dilworth Paxson. Raju, a corporate lawyer, will also serve as co-chairman of the firm along with bankruptcy partner Lawrence G. McMichael. Raju is bringing a 10-person team with him from Reed Smith.