Property managers' responsibility to HOA and Condo Association boards

My question is about community property managers. How much guidance must a community property manager give a condo association or HOA board? If the property manager knows that something should or shouldn't be done by the board, does that manager have a duty to speak up. Even if the specific subject is not mentioned in the management contract?

For instance, let's say that the property manager sees that a board member is going to do something risky or something that would violate the governing documents, should or does the manager have a duty to speak out and inform the board member of the situation?  And, along the same lines, if a board member asks for the assistance of a community property manager to violate a governing document provision, does the manager have the duty to refuse to participate in the action?