Final answer:
A veteran needs a valid Certificate of Eligibility to qualify for a VA-backed home loan.
Step-by-step explanation:
In order to qualify for a home loan backed by the Veterans Affairs (VA), a veteran must have a valid Certificate of Eligibility (COE). This certificate confirms that the service person is eligible to receive VA benefits, including VA-backed home loans. It's important to note that other documents like a driver's license or an Affidavit of Service, while potentially necessary for other aspects of the loan application process, are not specific requirements for determining eligibility for a VA-backed home loan.