The original title in Japan is called Biohazard. The reason why it's called Resident Evil in America is that the was a game also called Biohazard so they changed the title to avoid confusion.
Both, Australia is an island continent and a country. If you are a resident of Canberra, you are a resident of both an island and a continent.In this scenario, you are a resident of a continent, also...
You would normally capitalize nouns in the salutation, Dear Residents: (but this is not a significant aspect of the letter and is often ignored). If you use a longer salutation, such as "My dear...