The former head of Dentons’ Africa practice and co-chair of its global government sector has left the firm’s office in Washington, D.C., to join a boutique specializing in the diverse legal needs of African governments and diaspora from the continent.

Thomas Laryea, a Ghanaian-born lawyer who led the firm’s expansion efforts in Africa for the past five years, left Dentons in late April. This week, he resurfaced at a five-partner and minority-owned firm called Cooke Robotham, which has just been reconstituted with new partners and a revised partnership agreement.