Complex sentence: It is known as one of the "seven sisters", in Toronto and has approximately 500 lawyers over eight offices located in Toronto, Montreal, Ottawa, Calgary, Vancouver, New York City, London (UK), and Sydney.
Split into simpler sentences: It is known as one of the "seven sisters", in Toronto. The firm has approximately 500 lawyers over eight offices located in Toronto, Montreal, Ottawa, Calgary, Vancouver, New York City, London (UK), and Sydney.