Which type of items typically requires more extensive documentation during auction sales?

The type of items that typically requires more extensive documentation during auction sales includes real estate and high-value collectibles. This is largely due to the complexity and value associated with these items. Real estate transactions necessitate a thorough process involving titles, appraisals, zoning regulations, and potentially environmental assessments to ensure that the property is sold legally and without encumbrances. High-value collectibles, such as rare coins, fine art, or luxury watches, often come with certifications of authenticity or provenance that provide vital information about the item’s history and value.

In the auction process, buyers of such items expect transparency and verification of the item's value and legitimacy, thus necessitating a more rigorous documentation process. This establishes trust and aids in the smooth facilitation of the sale. In contrast, personal belongings, everyday household items, and even some decorative items typically don't require the same level of documentation due to their lower value and standardized selling processes.