Complex sentence: Regarded as an upper class community, Rothesay, on a per capita basis, is one of the wealthiest communities in Canada owing largely to the fact that it is home to several wealthy families who have resided in the community for a number of years.
Split into simpler sentences: Regarded as an upper class community, Rothesay, on a per capita basis, is one of the most economically prosperous communities in Canada. It is home to several wealthy families who have resided in the community for a number of years.