SIOR Leadership & Governance

SIOR Global Leadership


Del Markward, SIOR
2017-2018 President
Markward Group
Allentown, PA USA




Robert Thornburgh, SIOR
Kidder Mathews
Los Angeles, CA




Mark Duclos 2018


Mark Duclos, SIOR
Vice President
Sentry Commercial
Hartford, CT, USA

Board of Directors

Governance Committee


Del Markward, SIOR
2017-2018 President
Markward Group
Allentown, PA USA




Robert Thornburgh, SIOR
Kidder Mathews
Los Angeles, CA




Mark Duclos 2018


Mark Duclos, SIOR
Vice President
Sentry Commercial
Hartford, CT, USA





Geoffrey Kasselman, SIOR
Immediate Past President
Newmark Knight Frank
Chicago, IL, USA





Terry Smith, SIOR
Operations Director
Nashville, Colliers International
Nashville, TN, USA


Performance Oversight and Monitoring Committee


Jack Whalen, SIOR
Treasurer and Chair
Kidder Mathews
Los Angeles, CA, USA





R. Conrad Bernard, SIOR
Boyd Commercial, LLC/Corfac International
Houston, TX USA





Jeff Johnson, SIOR
NAI Black
Spokane, WA USA





Patrick Sentner, SIOR
Pittsburgh, PA, USA




Planning and Program Development Committee


Peter Whatmore, SIOR
Member-at-Large, PPD Chair
London, ON, Canada





David Liebman, SIOR
CLC Speaker
Merit Partners, LLC
Chicago, IL, USA





David Lockwood, SIOR
Colliers International
Columbia, SC, USA





Patricia Loveall, SIOR
Kidder Mathews
Seattle, WA, USA





Craig Meyer, SIOR
Past-President Rep.
El Segundo, CA, USA

Regional Directors


Gil Gordon, SIOR
RD-Canada Region
Cushman & Wakefield LTD
Mississauga, ON, CANADA





Jeffrey Deitrick, SIOR
Oxford Realty Services
Pittsburgh, PA 





Taber Thill, SIOR
Colliers International
Las Vegas, NV





Christopher Fox, SIOR
Gershman Commercial Real Estate
St. Louis, MO





Jeff Wilke, SIOR
SVN | Gulf Partners
New Orleans, LA





Frank Hird, SIOR
O,R&L Commercial
Branford, CT





Michael Jeppesen, SIOR
IPG Commercial Real Estate
Salt Lake City, UT





Chris Curtis, SIOR
RD-Great Lakes
Nugent Curtis Real Estate
Kankakee, IL





Albert McNeel, SIOR
Endura Advisory Group
San Antonio, TX





J. Bryan Rudisill, SIOR
NAI Charter Real Estate Corp.
Chattanooga, TN




MCC Leadership


Robert Thornburgh, SIOR
MCC Chair
Kidder Mathews
Los Angeles, CA





Mark Duclos, SIOR
MCC Vice-Chair
Sentry Commercial
Hartford, CT, USA





John Adams, SIOR
Communications and Branding Committee Chair
Avison Young
Knoxville, TN




Bryan Poynter, SIOR
Conference Committee Chair
Cushman & Wakefield
Indianapolis, IN






Vanessa Herzog, SIOR
Membership Standards & Admissions Committee Chair
Lee & Associates            
Tacoma, WA





Gabriel Silverstein, SIOR
Non Dues Revenue Committee Chair
SVN | Angelic
New York, NY





Steve Kapp, SIOR
Technology Committee Chair
Newmark Cornish & Carey
Hayward, CA





Soozi Jones Walker, SIOR
Diversity Member Group Chair
Commercial Executives
Las Vegas, NV





Don Ossey, SIOR
Faculty Member Group Chair
Capacity Commercial Group
Portland, OR





Damian Rivera, SIOR
Independent Member Group (IBG) Chair
Dallas, TX





Jim Klein, SIOR
Industrial Group Steering Committee Chair
Klein Commercial Real Estate
Gardena, CA





Sanjeet D. Narain, SIOR
International Member Group Chair
Narains Corp.
Mumbai, India





Jeff Johnson, SIOR
Investment Member Group Committee Chair
NAI Black
Spokane, WA





Peter Hanson, SIOR
Legacy Member Group Chair
NAI James E Hanson
Hackensack, NJ





Scott Jessen, SIOR
Office Member Group Chair
Citadel Partners
Dallas, TX





Dan Palmeri, SIOR
Young Professionals Member Group Chair
Cushman & Wakefield
Las Vegas, NV

Sanjeet D. Narain, SIOR, MRICS, CRES, TRC
Sanjeet D. Narain, SIOR, MRICS, CRES, TRC

Ex Officio


Thomas E. McCormick III, SIOR
Chief Executive Officer

SIOR Governance


SIOR maintains and promotes a professional designation of the highest quality for the benefit of its members and their clients.


We envision the SIOR professional designation standing unchallenged for excellence in the performance of commercial real estate services and universally recognized as the prerequisite in the selection of a commercial real estate broker, agent, or consultant. We are committed to supporting our members in achieving excellence while assisting their clients.

SIOR Governance Documents

General Objectives

The general objectives of SIOR follow:
  • Membership: Attract and maintain the most professionally competent real estate practitioners serving the facility needs of commerce and industry by implementing an active campaign to increase SIOR membership without reducing quality or standards.
  • Professional Competence and Education: Use appropriate resources of SIOR, its Education Committee, and the SIOR Foundation to enhance the competence and capabilities of its members and to offer educational opportunities to members, prospective members, the real estate industry, and the corporate real estate community.
  • Government Affairs: Represent the interests of the membership in government and legislative arenas.
  • Ethics: Establish and promote the highest standards of ethical and professional conduct among all members.
  • Publicity and Public Relations: Increase the visibility of SIOR and the professional capabilities and competence of its members within the business, civil, and political communities and within the real estate industry.
  • Organizational and Governance Structure: Assure that the SIOR President is recognized as SIOR’s principal spokesperson and Chair of its Board of Directors and assure that SIOR’s elected leadership, Board of Directors, and staff, through the Executive Vice President, fulfill SIOR’s mission and general objectives.

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