What is the right way to ensure that I am legally protected when I purchase assets or order a gig through third party websites? For example, does the section below from Fiverr terms of service cover all cases in this situation? "The delivered work shall be considered work-for-hire under the U.S. Copyright Act. In the event the delivered work does not meet the requirements of work-for-hire or when US Copyright Act does not apply, the Seller expressly agrees to assign to Buyer the copyright in the delivered work"
Each item/creation is subject to its' own license and you need to make sure that the license permits you to use whatever you purchased for commercial use and/or that the intellectual property rights/ownership rights have been transferred to you, or that you've received a license to use the item/creation.
In regards to Fiver - the section you mentioned does mean that the person doing the gig is assigning the rights over to you - the only problem is that that person may not be the owner of those rights, meaning that he can't actually assign them to you. For example, if the Fiverr person did something for someone else (and already assigned it to them), and then uses those same materials for you...
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