I’m applying for citizenship for my Dad who has completed his 5 year residency requirement in July 2024 but last year he was out on a trip over multiple countries and just before coming back he had to undergo an urgent surgery and had to stay out of US for more than 6 months(7.5 months in total)
I’m getting ready to file for his application and what are the evidence I can use to show continuity in his stay and the exception in medical grounds.
appreciate any guidance.