There's essential legislation in the U.S. that individuals and businesses should be aware of before buying and selling items:
CAN-SPAM Act: Regulates the methods businesses can use to market and interact with customers through email campaigns.
Copyright Act of 1976: The “first sale doctrine” means a copyright owner no longer has rights over a copyrighted item once it’s sold. This permits a person to resell items lawfully.
Consumer Product Safety Act: Enforces standards and bans that protect consumers from unsafe products that can cause injury or death.
Fair Credit Reporting Act: Regulates the collection of credit information.
Telephone Consumer Protection Act: Restricts soliciting through automatic dialing systems, fax machines, prerecorded voice messages, and text messages.
18 U.S. Code § 1001: Protects consumers from acts of fraud.
Whether commercially or privately, buying, selling, and renting goods or property is a straightforward process when the parties do their due diligence by having the proper documents and following the law. Doing so eliminates any liability risks and gives everyone involved a pleasant experience.