With the addition of two attorneys, 38-attorney Zarwin, Baum, DeVito, Kaplan, Schaer, Toddy has formed an environmental practice group.

Mark L. Freed and Paul M. Schmidt joined Philadelphia-based Zarwin Baum as co-chairmen of the environmental practice group Monday after leaving environmental law boutique Langsam Stevens & Silver. Their status at their new firm has not been finalized.