What Colorado MLS rules require
Both REcolorado (the largest CO MLS, covering metro Denver) and Pikes Peak MLS (Colorado Springs) require disclosure of any digitally altered listing photo. The accepted formats include on-image watermarks, caption notes, and disclosures within the listing remarks. On-image watermark is the safest format because it survives screenshot sharing on social.
CREC Rule 6.20: broker advertising
The Colorado Real Estate Commission applies Rule 6.20 to all broker advertising. Misleading listing photos can trigger license discipline independent of any MLS rule. The CREC has not issued AI-specific guidance as of mid-2026, but the existing advertising rule comfortably reaches AI-generated imagery.
The real exposure: Colorado Consumer Protection Act
C.R.S. §6-1-101 et seq. (the Colorado Consumer Protection Act) provides a private right of action with attorney-fee shifting. While Colorado does not allow treble damages routinely, the statute reaches "deceptive trade practices" broadly — including misleading real-estate marketing.
Looking ahead: SB 26-189 (effective Jan 1, 2027)
Colorado SB 26-189 (replacing SB 24-205) categorises housing as a "consequential decision" subject to Automated Decision-Making Technology (ADMT) obligations. Realtors using AI tools for listing imagery should expect indirect impact from these obligations starting January 2027.