Joan Margaret Piasta Omreng focuses primarily on mergers and acquisitions, corporate governance, private equity and general corporate law matters. Mrs. Piasta Omreng advises corporate and private equity companies in a variety of cross-border corporate matters, including acquisitions and dispositions, joint ventures, strategic investments, tender offers and corporate reorganizations.

Prior to her time at Wiersholm, Mrs. Piasta Omreng worked as a M&A associate at the New York office of Skadden, Arps, Slate, Meagher & Flom LLP where she was involved in a wide variety of U.S. and cross-border transactions representing acquirers, targets and financial advisors.

Professional Experience

  • Legal Advisor, Wiersholm, 2019
  • Associate, Skadden, Arps, Slate, Meagher & Flom LLP (New York), 2015


  • Juris Doctor, University of Pennsylvania Law School, 2015
  • Bachelor degree, University of San Francisco, 2011 (summa cum laude)