Five attorneys — three of them partners — have left Blue Bell, Pa.-based insurance law firm Nelson Levine de Luca & Hamilton to form their own insurance and liability defense boutique.

On Monday, former Nelson Levine partners William F. Stewart, Cynthia L. Bernstiel and Cathleen Kelly Rebar opened Stewart Bernstiel Rebar, with offices in Blue Bell, Princeton, N.J., and New York City.