Cornerstone accepts interboard listings within our market areas at no charge.

Interboard listings are accepted from REALTORS® who belong to other Ontario real estate boards. These listings will be placed on Cornerstone’s MLS® System, which means your listing will be available to over 8,000 Cornerstone members and subscribers PLUS members of ITSO’s participating boards.


Before you submit an interboard listing, please note the following:

  • Information must be emailed to [email protected]
  • Listings will be processed during regular business hours. 
  • Please include any contact information you wish to be displayed on the listing.  
  • Changes to your listing must be reported to Cornerstone MLS® Staff following the change on your Home Board listing. We will require a printout showing the completed change on your Home Board.  
  • Your listing must meet both the requirements of your Home Board and Cornerstone. Listings submitted within Cornerstone’s jurisdiction will be processed at no charge (see map above for jurisdictional boundaries)
  • Listings outside of Cornerstone’s jurisdiction will be subject to a non-refundable fee of $90.40 ($80 + HST). Payment must be received before the listing is entered into the Cornerstone MLS® System. Once payment is processed and the listing upload begins, refunds will not be issued.

Cornerstone will activate the listing and email you a copy.
If required, an invoice will be emailed to you for payment
.

  • If there are any changes to your listing (i.e., price, status, updates, or corrections), you must provide an updated printout to [email protected]
  • Interboard listings are not subject to activation and use of integrated web-based showing services, such as BrokerBay and ShowingTime.
  • Interboard listings will not be included in Cornerstone’s upload to REALTOR.ca as your Home Board will upload it.
  • Listing information submitted to the Cornerstone MLS® System will be retained and used by Cornerstone, its members, and authorized users.

Here are the requirements for submitting an interboard listing:

  • Complete all mandatory fields by completing the appropriate MLS® Property Information Form found under the Cornerstone Association of REALTORS® (available in WEBforms®). 
  • Imperial room sizes are required. 
  • The form must be typed. 
  • Listings will not be accepted if handwritten. 
  • The Sellers do not need to sign. 
  • The information on the Cornerstone Property Information form must match the source data concerning the price, listing type, expiry, and status.
  • Seller’s Direction is required if the presentation of offers is being delayed.
  • Full printout of the active listing as it appears on your Home Board.
  • Photo/image of the property (see format and delivery information below).
  • Listings must include at least one photo or image of the property to be processed.
  • Submit photos at the same time as the listing, naming them by the property address and numbering them in the desired display order.
  • Photos must be attached as JPEG files.
  • Embedded photos in emails will not be accepted.
  • Photos can either be attached or sent via a secure iCloud Link or DropBox-type link.
  • Up to 50 photos may be submitted for each listing. High-resolution images of not less than 1024 x 768 pixels will be accepted. Photos exceeding 20 Megabytes will not be loaded.

For Interboard Listing questions, please contact [email protected]