National Association of REALTORS® (NAR) awards Commercial Services Accreditation to real estate associations who achieve a minimum of 16 benchmarks. In 2024 Mainstreet REALTORS® earned the illustrious Diamond accreditation status which requires 41 benchmarks, the highest mark possible.

There’s achievement and there’s overachievement. Mainstreet REALTORS® is proud to be part of the former and the latter. NAR Commercial Services Accreditation is for real estate associations who develop and maintain a commercial membership division. The quality of that division is measured by recruitment of commercial REALTORS®, retention of their membership and commitment to providing engaging commercial services to communities.


According to Google there are over 1,200 real estate associations in the United States. Of the 1,200+ associations a mere 19 of them belong to the NAR Diamond Commercial Services Accreditation in 2024. Which means Mainstreet REALTORS® commercial division is in the top 2% of all real estate associations in the U.S.



The significance of Diamond accreditation status, to put it bluntly, is considerably large. It shows our dedication to serving our members not just in the residential marketplace. Mainstreet REALTORS® commercial members are responsible for top producer numbers annually. Our strategic goal is to ensure all Mainstreet commercial REALTORS® have the resources, education and outreach they need to succeed in any climate.


The selection process for which association is awarded Diamond accreditation is lengthy because NAR has a 67-question application across seven sections that must be filled in. Each question represents a benchmark. To qualify for the lowest level of accreditation, 16 benchmarks must be successfully completed. A highlight from these benchmarks comes from the Legislative and Advocacy section:


“The association has an active advocacy program including local and regional commercial real estate issues and communicates their specific efforts to members on a consistent basis.”

Total benchmarks to earn NAR’s Diamond Commercial Services Accreditation: 41.


So yeah, we are awfully proud of our commercial members and they deserve the spotlight for this award.



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By Lynnette Mock October 22, 2025
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By Wesley Rusick October 14, 2025
Mainstreet REALTORS® HQ, Downers Grove – For the third consecutive year Mainstreet REALTORS® applied for and earned the highest level of accreditation from NAR for our Commercial Services division, displaying steadfast dedication to all things related to commercial real estate advocacy. From 1958 to 1969, the Boston Celtics won 8 straight NBA championships. In 1978 and 1979 the Pittsburgh Steelers won back-to-back NFL Superbowl trophies. In the 1990’s, the Chicago Bulls won three NBA titles in a row, twice. While it may be an exaggeration, the fact remains: from 2023 to 2025/2026 Mainstreet REALTORS® has been awarded three straight Diamond Accreditation Awards for Commercial Services from NAR. “What is the NAR Diamond Accreditation Award for Commercial Services?” Glad you asked. There are three levels to the accreditation: gold, platinum and diamond. NAR has benchmarks, or requirements that each association must demonstrate to achieve a higher accreditation. For instance, diamond level requires a minimum of 41 benchmarks. These requirements range from commercial real estate advocacy efforts to educational opportunities to community presence. All the benchmarks factor into the most important aspect of the diamond award: creating a thriving commercial division at Mainstreet REALTORS® for agents in any stage of their career. All of this to say, if you are new to real estate and need a place to get your foot in the door or you have been in the industry for years and are looking for a change, Mainstreet REALTORS® is the place to be. We have year-round educational classes, specialized seminars, subject matter experts, keynote speakers and a community manager dedicated to the needs of anyone in the commercial real estate arena.
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