B-1, r. 3.1 - Code of Professional Conduct of Lawyers

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11. When a lawyer engages in activities which do not relate to the profession of lawyer, in particular in connection with a job, a function, an office or the operation of an enterprise:
(1)  he must ensure that those activities do not compromise his compliance with this code; and
(2)  he must avoid creating or allowing any ambiguity to persist as to the capacity in which he is acting.
O.C. 129-2015, s. 11.