There are many discussion lines on recommended accountants and how to chose one etc (p.s. never choose an accountant based on geography, always choose based on experience and knowledge of real estate transactions)
P.S. The Quick Search box on the top left of this page is incredibly helpful to tap into the vast knowledge base that is generated in these forums. Just type in a key word (i.e. "Markham" if you want to read any discussions about Markham etc).