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Welcome to another exciting issue of RESO Monthly! We are back and refreshed from our first in-person RESO conference in two years in gorgeous Kiawah Island, South Carolina. This issue will be top-heavy with our biannual conference recap, but there’s a lot going on below the top story. Watch future RESO blog posts for an expansion on the T-RETS Extinction Countdown, RESO Sunlight and our Pain Points conference session. Enjoy!

RESO Retreat Recap

Day 1: Welcome & RESO Today! | Leveraging Standards to Allow Subscribers More Product Choice + Move Data More Quickly | Deconstructing the Monolith | Front End of Choice is Here – What’s Next? | A Showing Standard for an Interoperable Industry | Meet the RESO Workgroups | Leading Edge Data on Agent Tech Trends | Spotlight Session: Zillow – The Need for Feed: How A Single Feed Could Change Everything

Day 2: Using Internet Tracking to Drive Home the Marketing Power of Your MLS or Brokerage | Deep Dive into RESO Certification (Q&A) | Getting to 100% – MLSs Reveal Their Strategies and Deadlines for Complete Web API Adoption | CMLS Update | Roundtables | Spotlight Session: RentSpree – Planning for Success with Rentals: A Panel of Industry Experts

Day 3: Pain Points

RESO Retreat 2021 graphicBy all accounts, the RESO Retreat fall conference at Kiawah Island Golf Resort in South Carolina was a smashing success. Once attendees got their sea legs and smelled those ocean breezes, it was all systems forward through a blistering, three-day agenda.

Now that the sun has set on our largest-ever RESO conference, you know what that means? Recap!

Our Board of Directors Chair and MRED CEO, Rebecca Jensen, welcomed attendees to Kiawah before giving way to RESO CEO Sam DeBord, who started things off lightly with video welcomes from Sugar Ray Leonard and Michael Buffer that set up a boxing match between the old ways of RETS vs. the new champion of Web API. | WATCH WELCOME AND RESO TODAY!

Sam touched on several themes during his opening salvo, including RESO’s new certification-reporting system (dubbed RESO Sunlight), the T-RETS Extinction Countdown, RESO’s Working With Real Estate Data course (RED-B), proof of concepts for a Universal Property Indicator (UPI) Registry and a Unique Licensee Identifier (ULI), a massive expansion of Data Dictionary subgroups (commercial, showings, rentals, appraisals, oh my!), RESO internationalization, and more. Particular focus for this conference rested on two initiatives:

1) T-RETS Extinction Countdown

The RETS Extinction Countdown leaderboard has been published on RESO’s website. If your MLS is making significant progress toward Web API conversion, send us your submission for the leaderboard. If you’re not – it’s time to ask your management team about your timeline.

RETS Extinction Countdown

2) Let the RESO Sunlight Shine

The state of standardized data in real estate has improved greatly over the past 20 years. RESO’s member organizations have driven that progress. Their work to bring transparency to standards specifications, testing systems and data reporting have brought us to a defining moment for MLS data.

The state of standardized data in real estate has improved greatly over the past 20 years. RESO's member organizations have driven that progress. Their work to bring transparency to standards specifications, testing systems and data reporting have brought us to a defining moment for MLS data.

Technology companies will use new certification-reporting insights to build more innovative products and make them available at a faster rate to more audiences. This new era of sunlight on MLS data will create a stronger, more competitive data foundation for the real estate industry to compete upon going forward.

A longer presentation of RESO Sunlight was provided on day two of the conference.

Frank Major, CTO at Bright MLS, opened the speaker sessions with Leveraging Standards to Allow Subscribers More Product Choice + Move Data More Quickly.” Bright MLS prides itself on offering product choice and integration into complex ecosystems without creating disjointed digital experiences. Data standards create a common language that simplifies collaboration, creates product interoperability, allows for easier data portability, reduces barriers to entry and promotes innovation. Simplified product choice also simplifies change, untethering agents from products and driving value for subscribers and the MLS itself.

Tim Dain, VP & GM of MLS at Remine, presented Deconstructing the Monolith,” an argument to move away from a singular, monolithic, Borg-like structure in favor of modularity that includes strong encapsulation (scalability through protected proprietary code), a well-defined interface and explicit dependencies. Modularity is more than integration, according to Dain, and a modular ecosystem is made possible through data and rule standardization, enabling innovations that elevate cross-functionality. Modular architecture creates opportunities for different sizes of MLSs and brokerages to explore solutions that uniquely benefit their audience. Resistance is not futile.

Brendan Fairbanks, Founder & CEO at Perchwell, presented Front End of Choice is Here – What’s Next? Perchwell powers the Real Estate Board of New York’s Residential Listing Service, the front end of choice for many brokers in New York City. According to Fairbanks, what’s next is more flexibility and interoperability, including open architecture, an API-first mentality, data standardization, transparency and more. Creating a common theme with the two presenters before him, Fairbanks spoke of how the flexibility/interoperability mentality enables innovation while also accommodating the needs of brokers and conforming to MLS specifications. A nonmonolithic structure facilitates competition to create MLS and broker product choice with best-in-class technologies built on a standardized foundation for enhanced business and consumer experiences.

Mark Bessett, RESO UPI Workgroup Chair and CTO at CRMLS, and Chris Haran, RESO Cross-Platform Interoperability Workgroup Chair and CTO at MRED, presented A Showing Standard for an Interoperable Industry.” CRMLS and MRED joined Bright MLS to create an industry standard for allowing more choice in showing service providers within an interoperable, standardized structure. The pillars of this partnership relies on the idea that MLSs manage core products, scheduling showings is a core activity in the real estate transaction and product integrations that follow RESO data standards can be supported by the MLS. The reality of multiple showing solutions within a single MLS is upon the industry, and working together on behalf of shared users for common standards makes sense.

The three MLSs have explored centralized, distributed and localized solutions and have settled on a localized solution that they call the MLS Hub. The group also sponsored “Showing Hackathon 2021.” Teams were asked to submit a written project description, video presentation and software solution using the MLS Hub application (accessed through an API) that would support a showing services standard. Showingly won the hackathon and the $2,500 top prize. | VISIT SHOWINGCHOICE.COM FOR MORE INFO

In the Meet the RESO Workgroups session, RESO workgroup chairs or vice-chairs in attendance introduced themselves and their key working projects in a relaxed environment. Most of the workgroups and subgroups met during the conference. Summaries and presentations for each are presented at the end of this e-newsletter.

Jeb Griffin, the Director of Strategy & Innovation at the National Association of REALTORS®, presented Leading Edge Data on Agent Tech Trends.” Griffin noted how COVID, though uncomfortable for some, hastened rapid adoption of new real estate technology. He also talked about NAR’s increasing role in technology initiatives, where they are tracking and investing in emerging tech; creating events and programs around technology, like their popular iOi Summit; and focusing on strategic projects involving NAR’s investment wings. Griffin then rolled through some highlights of the 2021 NAR Technology Survey. The five most valuable tech tools, according to NAR members, are eSignature, MLS apps/technology, social media, lockboxes and videoconferencing. The most impactful emerging technologies include drones, cyber security, 5G and virtual reality.

In a breakout session sponsored by Zillow, Joel Burslem, Product Marketing Manager at Zillow, moderatedThe Need for Feed: How a Single Feed Could Change Everything with a panel that included Cass Herrin, Director of Data Services at Moxiworks; Cindy Miller, COO of North Texas Real Estate Information Systems (NTREIS); and Turan Tekin, Director, Industry Relations, Zillow Group / Co-founder, Bridge Interactive. The industry is actively considering changes to the way IDX, VOW and BBO data feeds are distributed. The panel of technologists shared their experiences consuming data at scale and their wish lists for implementation of a single-feed solution.

Starting off day two, Marilyn Wilson, President at RE Technology and Managing Partner at WAV Group, and Josh McFall, CEO at, presented Using Internet Tracking to Drive Home the Marketing Power of Your MLS or Brokerage.” At, Internet tracking is used to learn where listing leads are sourced. What they have found is that their MLS website is a major source of listing views, shares and saves, well ahead of IDX and portals. In fact, more than 50,000 free leads were generated by over the past year.

Next up, RESO CEO, Sam DeBord, and RESO Technical Product Manager, Jason Darrough, presented Sunlight on MLS Data: RESO Certified Data Availability Reports,” which offered a first-time detailed look at RESO’s new certification-reporting site, due for beta release in the coming months.

The site ties together details about a data provider and its ability to serve up resources, fields and lookups from both the RESO Data Dictionary and local custom data.

Reports will have several measurements indicating how the data provider performed during certification testing, including how many fields are available compared to the industry average, which resources contain the most highly populated fields for that server and more.

Sam and Jason walked through various aspects of the reports to bring the community up to speed on this exciting new step in RESO’s evolution as a provider of meaningful data to drive the industry forward.

Until now, brokers and technology vendors have only been able to see what RESO-certified MLS data looks like after a lengthy licensing and access process. Mapping MLS data only begins at this late stage, delaying and hindering many technology ventures.

These new reports expose what MLS data looks like from a 30,000-foot view across the industry down to an individual field in a single MLS. This information will be available to any stakeholder in the industry and will create an environment for more competition and innovation across current real estate technology companies and new entrants to the industry.

We are describing this shift from a basic “Pass/Fail” to a data set that will receive more “Sunlight” than a simple separation into Certified and Uncertified categories. Going forward, the resources, fields, lookups and performance metrics of certified systems will be published on RESO’s website. Each individual field and its data type will be displayed to users.

We are describing this shift from a basic "Pass/Fail" to a data set that will receive more "Sunlight" than a simple separation into Certified and Uncertified categories. Going forward, the resources, fields, lookups and performance metrics of certified systems will be published on RESO's website. Each individual field and its data type will be displayed to users.

The data availability within the property records will give insights into which fields are being used in these systems. Users will be able to manipulate the data reports, viewing which fields are filled out most frequently in listing records. These data-availability statistics will answer important questions for technology developers. For example, do agents that create listings in a particular MLS system fill out a particular field 1%, 50% or 100% of the time?

Users of the RESO certification system will be able to compare the different data sets in an MLS to other MLSs and industry averages. In assessing these reports, data providers can determine whether there is a need to adopt more of RESO’s standard fields and lookups. They can access reports to take to their management teams and vendors to discuss data strategies moving forward, with objective information about their state in the marketplace.

  • How much of the RESO Data Dictionary is this MLS using? 
  • How does that compare to the industry? 
  • How many local, custom fields are employed in this MLS data set? 
  • How does that compare to other MLSs?

Systems certified by RESO must abide by rules as to how they “advertise” their data set. The metadata for a RESO Web API server is the menu or instructions telling the data consumer what kinds of fields and lookups exist on the server.

Systems certified by RESO must abide by rules as to how they "advertise" their data set. The metadata for a RESO Web API server is the menu or instructions telling the data consumer what kinds of fields and lookups exist on the server.

That metadata should match the data payload, or the set of actual property records that a data consumer receives. And RESO’s data-availability reports can now guide MLSs and their vendors to ensure that they are advertising all of their fields properly to their data partners.

As these reports drive competition in the marketplace, Web API customers increase the quality of available products to choose from and gain objective information on which to make product decisions. MLSs today often support two or even three Web API services simultaneously to provide choice and flexibility for their customers.

The industry has long talked about the transition from a 20-year-old data transport method, RETS, to the modern transport standard, RESO Web API. The new exposure afforded by the RESO Sunlight certification-reporting system will allow for easier, faster transitions by technology companies and fewer errors in the process. Conversions will accelerate. The question for the industry is no longer if all data consumers will be transitioned to Web API, but when.

Many MLSs are finished or near the completion of Web API conversion. To that end, Rebecca Pearson, Marketing & Business Development at MRED, and Liz Sturrock, Chief of MLS & Innovation at Miami Association of REALTORS® and Interim CEO at MLS Technology Holdings (aka Remine) delightfully presented Getting to 100% – MLSs Reveal Their Strategies and Deadlines for Complete Web API Adoption in what was one of the more lively and humorous presentations of the conference. Pearson and Sturrock discussed how the last four years have shown a major uptick in movement of data from RETS to precursors of Zillow’s Bridge Interactive and CoreLogic’s Trestle to where we are today, with Bridge managing northwards of 700 feeds and Trestle accounting for nearly 150 feeds. Anecdotally, we at RESO can attest to the fact that all the major vendors are in hot pursuit of Web API data transport at a higher level.

Denee Evans, CEO of the Council of Multiple Listing Services (CMLS), provided an update on the organization’s most recent activities and initiatives. What has emerged as most important in 2021 and into the near future are five fingers of punch, including work on a national MLS policy (including MLS data access and use; see Policy Statement 8.6 and 8.7), MLS best practices, the MLS Matters campaign, CMLX certification and purporting the value of MLSs.

“Roundtables” sponsored by Rental Beast were up next, with eight in-person tables and eight virtual tables covering a number of topics relevant to RESO and its members, including:

  • Rental data vs. resale data
  • Certification reporting
  • The UPI Registry
  • JSON Payloads
  • Internet Tracking implementations
  • The Unique Licensee Identifier (ULI)
  • Modular MLS technology
  • RESO’s Working with Real Estate Data (WWRED) course
  • Broker data aggregation hacks

In a breakout session sponsored by RentSpree, a panel of industry experts discussed how MLSs can support the ever-growing rental needs of agents. The panel featured Greg Manship, Senior VP of MLS and Data Integrations at Beaches MLS; Sara Fogg, Implementation Manager at NEREN; DaVina Lara, CEO of Bridge Association of REALTORS® and bridgeMLS; and Monica Peña, CEO at Greater McAllen Association of REALTORS®

Pain Points Doubled Down
Pain Points is RESO’s most popular conference session, hands down. This year, representatives from NAR and CMLS led the opening session to get feedback on policy pain points – asking where do industry rules and standards need to improve to create technology efficiency. The policy discussion was led by Jon Coile, VP, MLS & Industry Relations at HomeServices of America; TJ Bolan, Director of Programs at CMLS; and Rodney Gansho, Director of Engagement at the National Association of REALTORS®.

From there, Pain Points transitioned to critical technical concerns of members and attendees, moderated by Rick Herrera, VP of R&D and Data Services at Constellation1. The free-flowing conversation is a major driver of the creation of RESO’s future initiatives for creating efficiency in real estate technology.

RESO CEO Sam DeBord moderated both sessions, which were as spirited as ever and highlighted several key topics.

The initial discussion revolved around the following potential new MLS policies and best practices:

  • Requiring display of the listing broker’s offer of compensation to buyer agents
  • Prohibiting the advertising of services as “free” or at “no cost”
  • Prohibition of MLS participants and subscribers of filtering or restricting listings displayed to consumers based on offers of compensation or brokerage
  • Issuing discipline for rules violations consistent with NAR guidance
  • Including written instructions for requesting data feeds on MLS websites
  • Establishing a written plan for a “native” RESO Data Dictionary compliant MLS
  • Sharing aggregated sales data with state associations and NAR for advocacy efforts
  • Providing all officers and directors with information about their fiduciary duty to the MLS
  • Adopting and annually reviewing a strategic plan to address participant and subscriber needs
  • MLS data access and use: One data feed for all of a brokerage’s needs, including brokerage back office data
  • New disclosure requirement for broker contact information in IDX and VOW displays


Technologists pointed out that the “one feed” would simplify IDX, VOW and brokerage back office data. But there is also a “broker only” Participant Data Access Policy (PDAP) feed that has additional complexity and would probably need to remain separate.

Some MLS leaders spoke about the uncertainty of the current language in a best practice proposal for MLSs to begin planning “native” Data Dictionary conversions. The MLS software providers stated that if this means full technical conversions, it would cost millions of dollars and years of effort. If this kind of best practice ever became a mandatory rule in the future, the language of the mandate would need to be buckled down with technologist weigh-in.

Rob Larson, chair of the Data Dictionary, spoke to a common sentiment: “Don’t say ‘database.’ The technologists in the room will reject it.” The group agreed that policy should ensure that MLS inputs and outputs enforce standard fields and support local custom fields without forcing technology implementation decisions. RESO’s new certification-reporting platform will accelerate those efforts.

Images in the MLS garnered significant discussion. As agents independently upload high quality photos and video to the MLS, there should be a way for brokers to get that content back in an efficient manner. There should be a way for MLSs to provide unwatermarked, high-resolution media back to the broker.

The performance and pain points of Web API service access rules were also deeply discussed. As different services have different rules that rate limit or throttle customer access, transparency for data consumers should be created. There may be a need for a standard framework for Web API access rules, similar to a nutrition label, so that each service can describe its own rules in a common format.

The Pain Points session was recorded. | VIEW ON YOUTUBE 

Pricing Special on RESO 2022 Conferences

Upcoming 2022 RESO Conference locations graphic


We are currently running an exclusive, limited-time, members-only offer for both of our 2022 conferences.

2022 Conference Bundle – Only $1,000!

Join us April 25–28, 2022, for our spring conference in Tucson, Arizona. Join us again in St. Petersburg, Florida, next fall!



2022 Board of Directors Election

Board meeting roomNominations for nine open seats on the 2022 RESO Board of Directors (BOD) are now closed.

The slate of candidates will be sent to all members by November 5.  Each organization receives one vote, and the ballot will be sent to the primary contact on file.  If your primary contact has changed, please contact

Voting will be open November 15–30, 2021.

RESO Membership Renewal Season is Here!

Ron Burgendy Membership Renewal meme

Thank you for your valued membership in RESO. In order to remain at the forefront of real estate technology standards, please renew by December 31, 2021.


If you have any questions or are having issues logging in, please call 919.504.9898 or email

RESO at the NAR Expo

2021 REALTORS® Conference & Expo

“Rise & Shine” and pay us a visit at booth #1608 at the 2021 REALTORS® Conference & Expo, November 12–15, 2021, in San Diego.

We’ll be highlighting the T-RETS Countdown, the WWRED course and anything else you want to discuss with us about RESO standards.

RESO at Inman Connect

Inman Connect Las VegasRESO CEO, Sam DeBord, joined Council of Multiple Listing Services CEO, Denee Evans, as a moderator for the Tech Track on the final day of Inman Connect Las Vegas.

The two started off with a discussion called “Chasing a Transparent Data Future: How Do We Get There?” where they talked about trends and forecasts surrounding the importance of data today and how we can all work together to build a better industry.

Later, Sam moderated a discussion with Abhinav Gupta, the Senior Director of Digital Product Management at Bright MLS, and Tim Dain, VP & GM of MLS at Remine, about what the future of MLS tech looks like and the possibilities created by modular, interoperable software components.

To close out the Tech Track, Sam was joined by UtahRealEstate CEO, Brad Bjelke, and CEO, Josh McFall, to drive home the importance of putting the Real Estate Transaction Standard (RETS) to rest in favor of transitioning to a full RESO Web API in a session called “RETS Extinction Countdown: Which MLSs Have Gone Full Web API?”

To close out the Tech Track, Mark Bessett, CTO at CRMLS, and Chris Haran, CTO at MRED, joined Sam to take a deep dive into how showing systems will operate in the near future.

Oh, and your friendly Real Estate Standards Organization won the Inman Innovator Award for MLS, Association or Industry Organization of the Year! Thank you for the recognition, Inman! And thank you to our volunteers. We can’t shine this brightly on the international stage without you.

RESO on the Tube

In an episode of “Keepin’ It Real with Nick Bailey,” Nick welcomed Jon Coile, VP of MLS & Industry Relations for HomeServices of America; Sam DeBord, CEO of RESO; and Bill Fowler, Senior Director of Industry Relations at Compass. The group discussed the potential changes coming at the November National Association of REALTORS® convention.

"Keepin' It Real with Nick Bailey" podcastAt the heart of this discussion was listing displays. Listing agent and broker attribution on listing sites have been a controversial topic in the real estate industry for more than a decade. Nick Bailey, President of RE/MAX, and the panel of experts broke down both sides of the debate, discussed what is really at stake and offered thoughts on how the industry should prepare if listing displays truly are on the verge of looking different.

RESO does not have a position on this policy, but we are here to support the foundation of whatever the industry needs to streamline technology and make it efficient. | WATCH NOW

UOI NOI – Unique Organization Identifier News of Interest

Welcome to a periodic section of the e-newsletter that highlights organizational, product and other naming changes around the industry. RESO’s Unique Organization Identifier (UOI), formerly known as the OUID, continues to gain in stature, and we feel it’s time to highlight recent or future changes of interest.

Citysnap by Homesnap
You may see a separate UOI number for Citysnap in the coming months to match Zillow’s StreetEasy entry.

CoreLogic Product Renaming
While the CoreLogic name is not changing, a lot of its products have recently been rebranded, including Matrix to CoreLogic Listing Management Platform, Realist to CoreLogic Property Insights Platform and Trestle to CoreLogic Property Data Marketplace. This may affect some labeling within RESO’s new certification-reporting tool but nothing within the UOI itself.

Kentucky MLS Alliance
This new alliance will combine the MLS services of five associations, including Central Kentucky Association of REALTORS®, Heart of Kentucky Association of REALTORS®, Old Kentucky Home Board of REALTORS®, REALTOR® Association of Southern Kentucky and South Central Kentucky Association of REALTORS®. That’s a whole lotta Kentucky now under one banner.

MLS United
MLS United is forming out of a consortium of MLSs, including Mississippi Gulf Coast MLS, Central Mississippi MLS and the MLS of the Northwest Mississippi Association of REALTORS®. The associations for each organization – Gulf Coast Association of REALTORS®, Central Mississippi REALTORS® and Northwest Mississippi Association of REALTORS® – will remain intact with relationships tied to MLS United, while the old MLSs themselves will go into mothballs.

Remine of the MLSs
Austin Board of REALTORS®, First MLS, Heartland MLS and Miami REALTORS® formed a joint venture and bought the real estate technology company, Remine. The joint venture is called MLS Technology Holdings. As details of this purchase emerge, a new UOI entry may appear.

The MLS systems of Greater Central Louisiana REALTORS® Association, Bayou Board of REALTORS®, Greater Baton Rouge Association of REALTORS® and Gulf South Real Estate Information Network (GSREIN) will all be merging to form ROAM MLS. At first, this will be considered a Pooled Platform, with each individual MLS retaining not only its unique identifier as an association but as an MLS as well. But over time, some MLS identities may fall away, leaving individual association services and a joint MLS.

As of this writing, residential data is live in at least the GSREIN MLS, and the remaining property types are expected to be added by Q2 2022.

If you know of any mergers, acquisitions or other news that might affect RESO’s Unique Organization Identifier (UOI), please write to

New Members

Contract2Close logo        Lundy logo         Openn logo        Patsy Clark Real Estate logo Purlin logo


C2C Solutions
C2C Solutions has built a system to manage multiple transactions from one location.

Lundy sets up Alexa to provide around-the-clock information and unique details about a listing to potential buyers on command – at a listing, when they return from a listing or as a new lead.

Openn is an online platform used by real estate agents to facilitate more transparent property sales. It informs about the negotiation in real time, allowing for confident decisions about buying or selling at the best possible price.

Snap Realty
Snap Realty is the brand of new Broker Affiliate member, Patsy Clark, a residential community influencer, professional home stager and REALTOR® based in Holly Springs, North Carolina.

Purlin makes the experience of buying a home better by helping real estate professionals succeed, improving the businesses of brokerages and lenders through intelligent personalization.

We’re glad to have these organizations as RESO members!

RESO Marketing – Three Questions

Three Questions is a new interview series from RESO Director of Growth Management, Greg Sax, that introduces you to real estate industry professionals, their businesses and how they interact with real estate standards, including an additional goal of humanizing the tech side of the industry, fun included.

Three Questions with Bill Fowler and Melissa KingFirst on the docket is a dual interview with Bill Fowler, Senior Director of Industry Relations at Compass, and Melissa King, Director of Industry Relations at Compass. These two industry pros have wide open eyes towards data standards from prior roles in the MLS and vendor side of the industry through to today’s brokerage angle at Compass. Fowler currently sits on RESO’s board, and King is a past board member. This one comes with Halloween costumes of each participant for the recently celebrated holiday.

It’s not a podcast and it’s definitely not Tolstoy, but we think you’ll enjoy it. | VISIT THREE QUESTIONS

Subgroup Spotlight – Rental Subgroup

The Rental Subgroup, under the purview of the Data Dictionary Workgroup, kicked off in October with a specific meeting for practitioners in the rental space followed by a wider reveal to attendees of the RESO Retreat fall conference in Kiawah Island, South Carolina.

Challenges with rental listing data have been described, like filling out fields that are meaningless for rental properties or not having fields that are meaningful (e.g., pet-related fields). The group wants to solve these challenges by introducing a set of rental fields and lookups to the Data Dictionary, perhaps as a stand-alone resource.

The timeline for creating this set of data is an ambitious three months. The chair, Ishay Grinberg, Founder and CEO of Rental Beast, intends to provide a survey to the group in order to collect common data elements. The group will consume this collected data, discuss it and make decisions on what should be retained as common elements.

If you are interested in joining this subgroup, contact RESO at

Join a RESO Workgroup

Workgroups create RESO standards. Thousands of RESO members volunteer their time as subject matter experts to drive the next generation of standards.

From the interoperability of showing systems to Internet tracking, from commercial to rental data, from unique property ID systems to unique listing ID systems, RESO’s workgroups are driving industry change. | JOIN A RESO WORKGROUP

RESO Workgroup Meetings

Showing Subgroup | October 6, 13 and 19, 2021
On October 6, the group discussed five showing resources that were identified from the metadata submitted by the various showing platforms. Additionally, the group talked about the importance of including time zone data in the showing resource. On October 13, the group went through the Showing Resource Working Sheet and determined the placement of the fields gathered from showing providers under the new resources. Field usage and definitions were discussed, and a time zone field was determined to be an important part of the Showing resource. A summary of activity was provided at the RESO Retreat fall conference. |

Rental Subgroup | October 13 and 19, 2021
The subgroup kicked off its first meeting on October 13 with participants providing introductions and identifying their roles in the industry. Goals were laid out and were presented again to a wider audience at the RESO Retreat fall conference on October 19. |

Data Dictionary & Payloads Workgroups at RESO Retreat | October 19, 2021
Rob Larson, the chair of the Data Dictionary Workgroup, gave a background of payloads, stated the commonality goal of the Data Dictionary and provided instructions on how to join the workgroup and its accompanying subgroups. The status and key highlights of Data Dictionary 1.8 (which may receive a name change to 2.0) were given, along with updates on active topics being discussed in the workgroup. |

Days on Market (DOM) Business Descriptions Subgroup at RESO Retreat | October 19, 2021
The meeting recapped previous DOM discussions, identified the pieces of the DOM calculation and stated the workflow for creating DOM standards. |

Transport Workgroup & Certification Subgroup at RESO Retreat | October 19, 2021
The chair provided a rundown of the purpose of the Transport Workgroup and Certification Subgroup before launching into the recent accomplishments by each group and the work currently being done. |

Broker Advisory Workgroup at RESO Retreat | October 20, 2021
The workgroup continued to ramp up its Broker Spotlight series with a focus on Derek Taylor, VP of Product Technology at JP & Associates REALTORS® (JPAR), and Dan Troup, Director of Data Operations and Strategy at RE/MAX. First, Troup presented a novel approach to managing national MLS data from a broker perspective, including determining an MLS’s territory through Elasticsearch and Geohash mixed with listing data. Then Taylor presented the analysis of his company’s tech stack. The most potent quotable of the philosophy at JPAR was this gem: “We use technology to help us get stuff done faster. We’re going to eliminate first. If we can’t eliminate, we’re going to automate. If we can’t automate, we’re going to delegate.” This session was recorded. |

Research & Development Workgroup & ULI Subgroup at RESO Retreat | October 20, 2021
The meeting was mostly an overview and current work of the group over the last six months. The chair stated the workgroup’s purpose and goals along with an update on current business cases, complete with a demonstration of a ULI proof of concept. | CALL NOTES

Cross-Platform Interoperability & Internet Tracking Workgroups at RESO Retreat | October 20, 2021
This was a joint meeting with the Interoperability Workgroup held during the RESO Remote fall conference. The meeting covered each group’s mission, what they are working on and what direction they are going in next, with themed slides from the movie Caddyshack to match the conference’s golf resort setting in Kiawah Island, SC. | INTEROPERABILITY CALL NOTES | INTERNET TRACKING CALL NOTES

Universal Property Identifier (UPI) & Distributed Ledger  at RESO Retreat | October 21, 2021
The meeting covered the overall goals and objectives of both groups. UPI provided updates on the current specification and cited examples of the UPI implementations in place today. Distributed Ledger gave updates on the current UPI Registry proof of concept, and there was a guest presentation by Land Intelligence displaying their use of blockchain technology. |

Upcoming RESO Workgroup Meetings

November Calendar graphic

  • Wednesday, November 3: Showing (Subgroup of Data Dictionary)
  • Wednesday, November 17: Showing (Subgroup of Data Dictionary)
  • Wednesday, November 17: Internet Tracking
  • Thursday, November 18: Data Dictionary
  • Thursday, November 18: Certification (Subgroup of Transport)
  • Tuesday, November 23: Distributed Ledger
  • Wednesday, November 24: UPI Meeting

A renewed meeting schedule of the Tax Subgroup is also likely to begin during November. If you are interested, watch the Data Dictionary Workgroup space or inquire with

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