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About Real Estate Standards Organization

Real Estate Standards Organization (RESO) is an independent, not-for-profit organization with a fully remote staff. RESO was formed to develop data standards and processes that create efficiencies for all participants in real estate transactions. Our member organizations include MLSs, brokerages, REALTOR® associations and technology partners serving more than one million real estate professionals.

RESO’s mission is to create and promote the adoption and utilization of standards that drive efficiency throughout the real estate industry. Our vision is a streamlined real estate technology industry.




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2022 RESO Board of Directors

Chair: Rebecca Jensen, Midwest Real Estate Data, LLC (MRED)
Vice-Chair: Michael Wurzer, FBS – Creators of Flexmls
Secretary: John Breault, State-Wide MLS
Treasurer: Richard Renton, Triad MLS
Class A Directors: Dave Conroy and Alex Lange – National Association of REALTORS®
Class B Directors: Matt Cohen – CoreLogic, Bob Evans – Move, Inc., Mark Lesswing – T3Sixty, Turan Tekin – Zillow Group, Andy Woolley – and Homesnap
Class C Directors: Chris Carrillo – Metro MLS, Shayne Fairley – Stellar MLS, Frank Major – Bright MLS, Marty Reed – CRMLS
Class D Directors: Caitlin McCrory – Realogy, Jessica Edgerton – Leading Real Estate Companies of the World, Dan Troup – RE/MAX LLC
Class E Director: Jeff Young, Realtors Property Resource                                                                                                                                                                                                                                                                                                         

Key RESO Staff Contacts

Sam DeBord

Sam DeBord

Chief Executive Officer

919.504.9898 | Bio Page


Greg Sax

Greg Sax

Director of Growth Management


Suzanne Biegenzahn

Suzanne Biegenzahn

Chief Operating Officer



Claire Northrop

Claire Northrop

Marketing Manager


Jason Darrough

Jason Darrough

Technical Product Manager


Joshua Darnell

Joshua Darnell

Chief Technology Officer



Meridith Berson

Meridith Berson

Project Manager


About Open Standards

Open standards organizations, like RESO, exist in most industries to ensure technology advancement. A well-known example is W3C, which creates the standards for the World Wide Web. The most powerful technology companies in the world agree to collaborate to build a common web that raises the technology foundations of all competitors.

This is why you can get data, apps, services, and products from many different competing companies on the same smartphone. Web-based products are built on an open standard.

In real estate, RESO’s standards are created to promote that same experience: interoperability between MLS, broker, agent, and consumer technology tools.

RESO Today

RESO’s standards and services have grown significantly over time:

RESO’s core values align with those of open standards organizations across the globe. Our processes and products are collaborative, business-driven, transparent, innovative, open, inclusive, and measurable. | RESO Bylaws

Our History

In 1999, the National Association of REALTORS® (NAR) joined forces with leaders in technology to explore ways to make access to MLS data easier for real estate brokers, agents, and their technology partners.

In 2002, RESO was officially created as an NAR work group and soon presented its first version of the well-documented Real Estate Transaction Standard (RETS).  RETS is a legacy means of data transfer that has been used by the real estate industry for nearly twenty years.

RESO was incorporated in November 2011 as an independent, not-for-profit trade organization.