Exaggeration of a property's benefits in advertising is called

Negligent misrepresentation occurs when someone provides false information without exercising reasonable care to ensure its accuracy. This legal term implies a level of negligence in ensuring the truthfulness of a claim, which does not align with puffing, where exaggerations are often recognized as opinions rather than factual assertions.

While overstating does imply exaggeration, it is a broader term that does not specifically refer to the context of advertising. Overstatement can apply to any situation where something is exaggerated, whereas puffing is specifically related to marketing claims that are understood as subjective promotional language.

Fraud involves intentional deception for personal gain, which is significantly more serious than puffing. Puffing is not intended to deceive in a legal sense; rather, it is understood as a permissible form of exaggeration in advertising. Fraud requires proof of intent to mislead, which is not the case with puffing.