Complex sentence: In July 2005, she officially began her permanent residency in the Philippines, shortly after returning to the country to assist her family after her father's death, and applied for dual citizenship a year later, wherein she also reacquired her natural-born Philippine citizenship.
Split into simpler sentences: In July 2005, she officially began her permanent residency in the Philippines, shortly after returning to the Philippines to assist her family after her father's death. She applied for dual citizenship a year later, when she reacquired her natural-born Philippine citizenship.