Final answer:
TSgt Alvarez would need to submit the leave return paperwork within a specified timeframe after returning from leave.
Step-by-step explanation:
In the context of the military, a leave return refers to the process of submitting paperwork to the approving official after returning from leave. TSgt Alvarez would typically need to submit the leave return within a specified timeframe, which may vary depending on the specific policies of their unit or organization. This timeframe is usually outlined in the military regulations or leave policies.