Final answer:
Editing photos to show the "potential" of listings, rather than their current state, is not acceptable under the NAR Code of Ethics. Accurate representation as per Article 12 is required.
Step-by-step explanation:
According to the NAR Code of Ethics, it is not acceptable for Sheena to alter photos to show the "potential" of fixer-upper listings. Article 12 of the NAR Code of Ethics states that Realtors® must present a true picture in their advertising and representations to the public. This includes information presented on a website. Therefore, editing the photos to misrepresent the current condition of the listings would be in violation of Article 12, as it could be misleading and inaccurate to potential buyers. It's important to accurately represent the property, highlighting its present condition while ensuring any enhancements made to photos are clearly marked as such.