Former Montgomery County District Attorney Bruce L. Castor Jr., who has represented a number of embattled public figures across the state, is parting ways with his Ardmore-based firm to join van der Veen, O’Neill, Hartshorn and Levin, a Philadelphia firm focusing on personal injury and criminal defense.

Castor’s former firm, Rogers Castor, is set to change its name to Rogers Counsel, with name partner Lance Rogers continuing to head that firm.