Midsize firm Flaster Greenberg is moving toward a two-person leadership structure, the firm announced Tuesday, in an effort to allow its top leaders to stay more engaged with their practice while managing the firm.

Jordan LaVine and Steven Poulathas will take over as co-managing shareholders Jan. 1, the firm said, succeeding Alan Zuckerman, who will be finishing his four-year term. Zuckerman will resume his full-time practice and will serve as chairman of the firm’s board of directors.