With more than 27 years of corporate executive and capital markets experience, and service on six public company boards over the past 14 years, Sara Grootwassink Lewis is a highly trusted adviser to her boards. She has held many board leadership positions, including Presiding Director, Audit Committee Chair and Nominating / Corporate Governance Chair. Her expertise includes corporate finance and capital allocation, mergers and acquisitions, CEO succession, executive compensation, accounting, risk oversight and corporate governance. Board Leadership – Corporate Ms. Lewis serves on the Board of Directors of Sun Life Financial (TSX:SLF) (NYSE:SLF) and Sun Life Assurance Company of Canada. Founded 150 years ago, Sun Life is a leading global financial services company with operations in North America, Europe, and Asia, and total assets under management of more than C$990 billion. Ms. Lewis is Chair of the Audit Committee, a member of the Governance, Nominating and Investment Committee, and previously served on the Management Resources Committee. Ms. Lewis serves on the Board of Directors of Weyerhaeuser Company (NYSE:WY), the world’s largest timber, land and forest products company, owning more than 12 million acres of timberlands, harvested on an internationally recognized sustainable basis. Ms. Lewis is Chair of the Audit Committee. Ms. Lewis serves on the Board of Directors of PS Business Parks (NYSE:PSB), the owner of 28 million square feet of office and industrial real estate throughout the United States. Ms. Lewis is Chair of the Audit Committee, a member of the Nominating and Corporate Governance Committee, Capital Committee, and former Presiding Director (2012 & 2015). Board Leadership – Philanthropic Ms. Lewis serves on the Board of Trustees of the Brookings Institution. Founded in 1916, Brookings is the most highly regarded independent, non-partisan think tank in the United States. Ms. Lewis serves on the Budget and Finance Committee. Ms. Lewis serves on the Leadership Board of the United States Chamber of Commerce Center for Capital Markets Competitiveness. The Center’s mission is to advance America’s global leadership in capital formation by supporting diverse capital markets that are the most fair, transparent, efficient, and innovative in the world. Ms. Lewis served as a member of the Public Company Accounting Oversight Board (PCAOB) Standing Advisory Group, where she advised the PCAOB on the development of auditing and related professional practice standards for a three-year term, from 2015 - 2017. Executive Leadership With Lewis Corporate Advisors, Ms. Lewis guides companies through the rating agency process with Moody’s and Standard & Poor’s, related debt restructurings, and the subsequent execution of investment grade bond offerings. As the Executive Vice President and Chief Financial Officer of Washington Real Estate Investment Trust (NYSE:WRE), Ms. Lewis was responsible for the Company’s overall financial and capital markets strategy, and served as the Company’s primary spokesperson to the media and Wall Street from 2001 -2009. Ms. Lewis holds the Chartered Financial Analyst designation, and is a Certified Public Accountant, registered in the State of Illinois.