Board of Directors - Bios

Paul Lewis
Paul Lewis
Chairman Opus Holding, L.L.C.

Paul Lewis is chairman of the board of Opus Holding, L.L.C. Mr. Lewis, along with Adler Trust Company, are the trustees of the trusts that own Opus Holding, L.L.C. for the benefit of the Rauenhorst family. In addition to Opus Holding, L.L.C., these trusts own a number of private businesses as well as typical investment assets. Mr. Lewis also serves as chairman of Encore One, L.L.C. In 2000, Mr. Lewis joined Adler Management, L.L.C., the Rauenhorst family office, as senior vice president and later became president, leading the investment management function, until his retirement in 2017.

Prior to joining Adler Management, Mr. Lewis worked in the investment management business at First Chicago Investment Advisors, First Asset Management and Speece, Lewis & Thorson.

Mr. Lewis earned a master’s of science degree in finance and a bachelor’s of business administration degree in finance from the University of Wisconsin-Madison.


Mary Brainerd
Mary Brainerd
Former President & CEO HealthPartners

​Mary Brainerd is former president and chief executive officer of Minnesota-based HealthPartners, the largest, consumer-governed, nonprofit health care organization in the nation.

Ms. Brainerd started her career with HealthPartners in 1992. Under her leadership, HealthPartners experienced record growth and was often recognized as a national leader in the health care industry.

During her 15-year tenure as CEO, the organization received numerous accolades for outstanding patient care, health plan service and its charitable community work, as well as for workplace ethics and being a top workplace.

Prior to joining HealthPartners, Ms. Brainerd held senior level positions with Blue Cross and Blue Shield of Minnesota, including senior vice president and chief marketing officer. She was also senior vice president and chief executive officer of Blue Plus.

Ms. Brainerd holds a master's degree in business administration from the University of St. Thomas, and a bachelor's degree from the University of Minnesota. She is one of the founding CEOs and former Chair of the Itasca Project, previous chair of the Minneapolis Federal Reserve Bank, and currently serves on the boards of Minnesota Life/Securian, Bush Foundation and Stryker, Inc., Bremer Financial Corporation and Minnesota Public Radio.


Amy Goldman
Amy Goldman
Chair & CEO GHR Foundation

Amy Goldman is CEO and Chair of GHR Foundation, a philanthropy serving people and their ideas for transformational change in lives around the world.  

Ms. Goldman steers the foundation’s direction with optimism and a background in diplomacy and social investment that has inspired new approaches to philanthropy. Under her leadership, GHR has doubled its assets and staff as the organization launched a new effort to build bridges across ideas, sectors and people; elevated powerful movements of faith and inter-faith actors for sustainable development; implemented systems change strategies across public, private and faith sectors to keep children in families; and unlocked significant funding from industry and government to
prevent Alzheimer’s Disease.

She serves on the Georgetown University board of directors, the Georgetown University Walsh School of Foreign Service board of advisors, Mayo Clinic leadership council and is a trustee and vice chair of the board for the University of St. Thomas in St. Paul,
Minnesota. She is a member of the Council on Foreign Relations.

Previously, Ms. Goldman served as a lead consultant for Washington D.C.-based International Trade Services, where she focused on trade negotiations and investment strategies.

She holds a master’s degree in political science from the University of California at Berkeley, a master’s degree in law and diplomacy from Tufts University Fletcher School of Law and Diplomacy, and bachelor’s degree in foreign service from Georgetown University.


Sabrina Kanner
Sabrina Kanner
Executive Vice President, Design and Construction Brookfield Properties

Sabrina Kanner serves as executive vice president, design and construction of Brookfield Properties.

With Brookfield Properties and its predecessor, Olympia & York, since 1982, Ms. Kanner oversees design and construction in the United States. She joined the construction division of Olympia & York in 1982 and was appointed to run Olympia and York’s construction company in 1986.

In her tenure with the company, Ms. Kanner has played a key role in the construction, design and development or redevelopment of over 40 million square feet of signature Brookfield projects such as World Financial Center/ Brookfield Place, 300 Madison Avenue, Bay Adelaide Centre, the restoration/renovation of the Winter Garden at World Financial Center after 9/11 and currently Manhattan West.

She is a member of WX and sits on the board of directors of New York Building Congress (treasurer), The Salvadori Center (vice chair), The Opus Group, The Regional Plan Association, Urban Green Council (secretary) and Cedar Realty Trust, and sits on the board of trustees of The National Building Museum (secretary) and The Beverly Willis Architecture Foundation.


Wade Lau
Wade Lau
Chair & CEO Founders Properties, L.L.C.

Wade Lau serves as president and CEO of Founders Properties, L.L.C., and president of Opus Properties. Mr. Lau is responsible for all aspects of the Founders Properties and Opus Properties operations including investments, finance, capital market activities, dispositions and new product development, including the formation and management of real estate investment opportunities and fund partnerships, and plays an active role in overseeing the operations and strategic vision for these funds.

Before the formation of Founders Properties, Mr. Lau was vice president of asset management for Opus Properties, which he joined in 1999. Prior to that, he led CB Richard Ellis’ Central Region as senior managing director of asset management and was COO for the Shelard Group, a Twin Cities-based real estate services firm. Mr. Lau began his career in Norwest Bank’s Minneapolis’ commercial real estate group and has more than 30 years of diversified commercial real estate experience.

Mr. Lau is a member of the NAIOP, the commercial real estate development association and Urban Land Institute (ULI).

Mr. Lau holds a bachelor’s degree in economics from Harvard College and a master’s degree in business administration from Harvard Business School where he graduated with honors.


Walt Mercer
Walt Mercer
Managing Director Paris Hill Realty Advisors

Walt Mercer is managing director of Paris Hill Realty Advisors, specializing in advisory work for clients on real estate capital matters. Mr. Mercer is based in Boston, Massachusetts.

Most recently, Mr. Mercer was market manager for Suntrust’s commercial real estate line of business in the northeast and served prior as their executive vice president and head of the commercial real estate line of business. During his 11-year tenure at Suntrust, he was responsible for relationship management, tax credits and syndications and the REIT group. He retired from Suntrust in 2018. Previously, Mr. Mercer held positions at Paris Hill, Spaulding & Slye, Fleet Bank, Creamer Realty Associates and Citicorp Real Estate.

Active in finance and banking since 1973, he began his career at Citibank and was involved in managing banking relationships for middle-market, national and then real estate firms.

Mr. Mercer is a graduate of Harvard University.


Tim Murnane
Tim Murnane
President & CEO Opus Holding, L.L.C.

Tim Murnane is president and CEO of Opus Holding, L.L.C. Mr. Murnane oversees all operations of the operating companies collectively known as The Opus Group. These operating companies are Opus Development Company, L.L.C., Opus Design Build, L.L.C., and Opus AE Group, L.L.C.

Mr. Murnane brings over 39 years of experience in commercial real estate development and has developed more than 30 million square feet of office, industrial and retail projects. During his 28 years with Opus, Mr. Murnane developed some of the firm’s landmark projects, including the 435-acre mixed-use Arbor Lakes project in Maple Grove, MN, and the 1.6 million-square-foot Best Buy corporate campus and the one million-square-foot American Express Financial Advisors headquarters, both located in Minneapolis.

He is an advisory board member for the University of St. Thomas Real Estate Program and the Urban Land Institute (ULI). Mr. Murnane is also a board member for the Minnesota Business Partnership and St. Thomas Academy, and held previous board positions at the Minnesota Chamber of Commerce, the Minnesota Shopping Center Association, Twin Cities RISE! and the Minneapolis Downtown Council.

Mr. Murnane is an alumnus of the University of St. Thomas.


Mark Rauenhorst
Mark Rauenhorst
President Maren Properties, L.L.C.

Mark Rauenhorst is currently the president of Marren Properties, L.L.C., a private company that invests in commercial real estate. For approximately 28 years, he worked for several Opus companies before retiring from Opus Corporation at the end of 2009.

Mr. Rauenhorst joined Opus Corporation in 1982 and became president and CEO of Opus Northwest, L.L.C. in 1996, supervising activities related to project development, including site acquisitions, zoning, market analysis, financial feasibility, government approvals, marketing, leasing and property management. In 1999, he became president of Opus Corporation, was named CEO in 2000 and chairman in 2007.

Mr. Rauenhorst serves on the board of directors of AIM Higher Foundation, Ascension Catholic Academy, Catholic Relief Services, Creighton University, GHR Foundation and University of Notre Dame – Advisory Council for Mendoza College of Business. Additionally, he is a member of the Urban Land Institute (ULI) and Young Presidents’ Organization (YPO).

Mr. Rauenhorst received a bachelor’s degree in sociology and psychology from Creighton University and a master’s degree in business administration from the University of Notre Dame.


Bob Underhill
Bob Underhill
Executive Vice President, Fund Management Shorenstein Realty

Bob Underhill joined Shorenstein in 2002. He is responsible for leading all of the company’s fund management activities, including fundraising, investor relations, investor reporting and portfolio management. He participates in the strategic direction of the company as a member of its executive committee and in the company’s investment activities as a member of its investment committee.

Prior to joining Shorenstein, Mr. Underhill was a principal at Lazard Frères Real Estate Investors where he was part of a management team that was brought in to manage and restructure investments in their fund portfolios. Prior to Lazard Frères, Mr. Underhill worked for over 17 years in real estate investment and operations with LaSalle Partners and Security Capital Group.

Mr. Underhill is a member of the Urban Land Institute (ULI) and The Real Estate Roundtable’s Real Estate Capital Policy Advisory Committee. Mr. Underhill is a trustee of the Princeton Theological Seminary and chairman of its Investment Committee and a member of the Real Estate Advisor Board of the Kellogg School of Management at Northwestern University.

Mr. Underhill graduated from Colby College with a bachelor’s degree and from The Kellogg School of Management at Northwestern University with a master’s degree in business administration.