A legal malpractice lawsuit filed by the trustees to a union’s benefit funds against Pryor Cashman for failing to provide advice that would have prevented the funds’ third-party administrator from embezzling $42 million may go forward, a unanimous Appellate Division, First Department, panel ruled Thursday.

The trustees for the three Construction Workers Local 147 filed the lawsuit, Fitzsimmons v. Pryor Cashman, 651360/10, last year (NYLJ, Aug. 30, 2010). It followed the December 2009 arrest of Melissa G. King on federal charges of embezzling millions from the funds as the principal behind administrator King Care LLC.