What is the fiduciary obligation of a partner in a professional services partnership?

And, at paras. 62-63: The fiduciary duty between partners thus arises not only from the reciprocal agency relationship between them but, also, from the duty of utmost good faith which each partner owes to the other. Fundamental to this overarching fiduciary duty is the requirement that each partner place the interests of the partnership, and the avoidance of situations which create, or could create, a conflict between fiduciary duty and the interests of the partnership, ahead of a partner's private interests. Accordingly, partners are required to prefer the interests of the partnership over their own personal interests. The scope of the fiduciary duty in partnerships is of the broadest nature. As stated by Vice-Chancellor Bacon in Helmore v. Smith (No. 1) (at p. 444): [I]f fiduciary relation means anything I cannot conceive a stronger case of fiduciary relation than that which exists between partners. Their mutual confidence is the life blood of the concern. It is because they trust one another that they are partners in the first instance; it is because they continue to trust each other that the business goes on. Mutual trust, confidence and good faith are the cornerstones of the modern professional services partnership. Without them, the very essence of the partnership arrangement is eroded and, ultimately, destroyed. In my view, the equitable principles developed over the last century concerning the fiduciary obligations of partners continue to control contemporary partnerships. They may require, however, flexible application to respond to changing partnership structures, activities and settings. [Citations omitted.]