Less than a month after six partners left London-based legal giant Ashurst’s New York office, one of those defectors, Lawrence Berkovich, has reemerged at Allen & Overy.

Berkovich is the only member of the group to set off on his own—his five former Ashurst colleagues joined Chapman and Cutler—but his talks with Allen & Overy were reported on late last month by sibling publication Legal Week. The Magic Circle firm has now sealed its hire of Berkovich, who specializes in the structured financing of collateralized loan obligations (CLOs).