At Merrill, the Buchers had been part of The Locniskar Pursel Bucher Biddinger Group, according to their former firm’s website. The group had managed $4 billion combined in client assets, according to Forbes, which ranked the team ninth on its best-in-state teams this year. It is now led by managing directors Dana M. Locniskar and Thomas S. Pursel, who could not be reached for comment.