New Jersey law firms Pashman Stein and Walder Hayden have combined to form 45-lawyer Pashman Stein Walder Hayden, which will occupy the former firm’s space in Hackensack.

The deal, which brings 12 of Walder Hayden’s 17 lawyers, was inked May 11 by Pashman Stein managing partner Michael Stein, and Walder Hayden partners Justin Walder and Joseph Hayden.