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CMLS Resources

CMLS believes in sharing the expertise of our members while advancing policies, best practices, and education as a foundation for tomorrow. The CMLS Resource Center organizes the latest industry resources.

CMLS Best Practices

CMLS is proud to provide MLS Best Practices, which set out to improve the MLS industry through the development, establishment, and evolution of MLS best practices. Visit the Best Practices section for the most recently published documents.

RESO API Webinar

CMLS hosted a RESO webinar on Tues. June 14, which covered how MLS organizations could meet the deadline to become compliant with the new Web API. Find the full RESO Web API Webinar here.  

RESO Data Dictionary

RESO created a Migration Starter Kit  to assist Data Providers and MLSs with Data Dictionary certification. The starter kit provides recommended steps and a mapping template. A completed template will help identify the changes required for your MLS to be compliant.

RESO Data Dictionary Assistance

RESO published a spreadsheet that includes all of the consultants who can assist with Data Dictionary certification. That list can be found  here . You can also contact RESO staff to help with the mapping and certification process. Email all questions to

CMLS Essentials

The CMLS Essentials section introduces new tools and resources for the MLS industry. Recently published resources include: 

• CMLS Green Sheet: Automated Efficiency Models 

• CMLS Portal Agreement Checklist

About CMLS

CMLS brings the real estate industry together to explore issues, provide solutions, advance multiple listing services, and build a better marketplace.

Contact Us

Council of MLS
330 N. Wabash, Suite 2000
Chicago, IL 60611
877 505 8805

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