PropTx AUA s.7(c) — express prohibition: no decompile / reverse-engineer / disable / modify / **analyze** / create derivative works of software, MLS Database, BRS Database; s.4 ties to REBBA/TRESA

Claim. PropTx AUA s.7(c) expressly forbids users to "decompile, reverse-engineer, disable, modify, analyze or create derivative works of the software, MLS Database or BRS Database." Section 4 prohibits using/copying/reproducing/exploiting the MLS Database contrary to the By-Laws, MLS Rules, MLS Policies, or Ontario's REBBA/TRESA.

Quote.

"Decompile, reverse-engineer, disable, modify, analyze or create derivative works of the software, MLS Database or BRS Database."

Source. PropTx AUA s.7(c), quoted in torkin.com analysis of TREB v. Mongohouse; PropTx Rules effective Dec 2 2024, accessed 2026-06-21.

Confidence. Verified for the clause text via litigation summary; the operative AUA may have evolved — see caveats.

Caveats. The exact, current signed AUA text must be reviewed — the version cited is via a 2019 litigation summary + the Dec 2 2024 PropTx Rules; operative DLA/AUA terms may differ and may have changed. The word "analyze" is the single most dangerous term for any analytics product — broad, ambiguous, untested in this context.

Implication / use. The hardest "no" line for any analytics product. Anchors Rule: no "derivative works" of the MLS Database. PropTx AUA s.7(c) includes "analyze" — broad, ambiguous, untested. Counsel-required before any analytics product asserts non-breach. Counsel-required before any product asserts it does not breach this.