{"id":1620,"slug":"gaps-mls-data-inside-the-box-register-not-located-and-counsel-items","title":"Gaps: MLS-data inside-the-box brief (June 2026) — public-data register not located; counsel items","kind":"research-notes","scope":"business","status":"current","audiences":["kevin","candid-team"],"topics":["real-estate-mls","mls-data-licensing"],"reference_body":"**Open research items before this becomes an article:**\n\n1. **Public-data register cross-check.** The project's separate \"Ontario real-estate data source register\" — the OUTSIDE-the-box catalog — could not be located in Drive during the source session. Searches on `MLS`, `HPI`, `land registry`, `StatsCan`, `Teranet`, `HouseSigma`, `absorption`, `days on market`, `Greater Golden Horseshoe` all returned empty. **Confirm the register's contents before finalising the seam in any published piece** — either the register lives outside this Drive's indexed Google-Docs scope (e.g., Sheet, PDF, different shared drive), or under a name not matched.\n\n2. **Operative AUA/DLA text review.** The PropTx AUA s.7(c) clauses cited via 2019 litigation summary + Dec 2 2024 PropTx Rules may differ from the currently-signed agreement. Pull the version actually in force for any builder context.\n\n3. **Counsel review on the \"analyze\" word.** PropTx AUA s.7(c)'s prohibition on creating derivative works of, or \"analyzing,\" the MLS Database is the single most dangerous clause for an analytics product. Get a written opinion before any product asserts it does not breach this.\n\n4. **Counsel review on de-identification threshold.** When sufficiently aggregated MLS data stops being \"about an identifiable individual\" for PIPEDA purposes is fact-specific and not bright-line. The OPC #2009-004 analogy ([[opc-2009-004-aggregation-publicly-available-de-identified-analogy]]) is **DS for the MLS-aggregate application** — counsel review essential.\n\n5. **Counsel review on the agent-permissioned (Redatum) seam.** The 2021 FC 30 outcome was injunction-denied, not merits-decided. Subsequent feed-eligibility cases ([[ojohome-v-crea-trreb-2025-feed-terminated]]) show boards actively police this. Resilience to a board terminating feed eligibility must be built into the commercial model.\n\n6. **Independent verification of HouseSigma metrics.** Self-reported user/visit figures are internally inconsistent; before citing as fact, verify against an independent source (Similarweb, etc.).\n\n7. **Verify Ontario board migration list.** OMDREB, London, Ottawa, Niagara, KAREA, NAR, NBARA, WITAAR, OnePoint listed as moving to PropTx via realestatemagazine.ca; verify against primary board notices before relying on the migration list in a published piece.\n\n8. **Re-pull primary BDC and TRREB Market Watch sources.** The \"Month's Inventory\" line is cited via practitioner blog; the actual TRREB Market Watch primary should be cited in any published piece.\n\n9. **Trace primary for \"first in Canada to make sold prices publicly available.\"** The HouseSigma framing is founder-attributed; primary verification before citing as fact.","rationale_body":null,"metadata":null,"links":{"outgoing":[{"slug":"research-brief-mls-data-inside-the-box-ontario-june-2026","title":"Research notes (capture-layer): inside the MLS box — what an Ontario member agent's account exposes, what goes unused, and what they're licensed to do with it (June 2026)","kind":"research-notes","scope":"business","link_type":"depends-on"}],"incoming":[{"slug":"research-brief-mls-data-inside-the-box-ontario-june-2026","title":"Research notes (capture-layer): inside the MLS box — what an Ontario member agent's account exposes, what goes unused, and what they're licensed to do with it (June 2026)","kind":"research-notes","scope":"business","link_type":"relates-to"},{"slug":"rule-mls-inside-vs-outside-seam-do-not-recatalog-public-proxies","title":"Rule: the seam vs the public-data register — this brief is INSIDE the box. Do NOT re-catalog the OUTSIDE proxies (HPI / StatsCan / Teranet / municipal open data / consumer sold portals)","kind":"rule","scope":"business","link_type":"depends-on"}]},"created_at":"2026-06-21T10:51:32.854Z","updated_at":"2026-06-21T10:51:32.854Z"}