Images should only be attached to a property when they come from the same public article, verified video thumbnail, owner media pack, or written listing mandate. The two Tuko-backed mansion examples use Tuko images credited to Mansa Plus via YouTube, while the newer tour examples use their matching YouTube thumbnails.
Do not reuse attractive house photos across unrelated listings. It makes the demo look polished for a moment, but it creates trust problems when a client asks to view the property and sees a different house.
Recommended workflow: save the source URL, image credit, upload date, listing title, price, and contact person with each record. If the original room gallery is not confirmed, use one accurate thumbnail and clearly say the full gallery should be added after image permissions are confirmed.