Standards of Conduct, Fiduciary Duty, and Professional Ethics
The fiduciary core
MSRB Rule G-42(a) makes a municipal advisor a fiduciary of its municipal entity client. The duty runs to the municipal entity and to no one else - not to the underwriter, not to investors, and not to the conduit borrower on a 501(c)(3) or housing deal. There are two components: a duty of care (knowledge and skill, reasonable diligence, advice grounded in reasonable inquiry into the facts) and a duty of loyalty (undivided loyalty, plus full, fair, written disclosure of every material conflict).
Conflicts and ethics
Rule G-42(c) requires written disclosure of material conflicts, including compensation from third parties, relationships with underwriters, and interests in the outcome of the transaction. Oral disclosure is not enough, and disclosure does not legitimize every conflict - some are simply unmanageable. Pay-to-play (Rule G-37) and gift limits (Rule G-43) also bind municipal advisors. The fair-dealing standard of G-17 supplements but does not replace the fiduciary duty.
Traps
(1) Assuming dual fiduciary duties - a very common distractor. (2) Confusing the fiduciary standard with suitability. (3) Forgetting that disclosure must be written and documented. (4) Treating the duty as ending when the bonds are sold; it runs through the engagement.
Rule of thumb
One client, one loyalty: before every recommendation, ask “who pays me and who benefits?” Example: your firm advises the City on a floating-to-fixed swap and would earn a referral fee from the dealer. That is a material conflict - disclose it in writing before the recommendation, and if it cannot be fairly managed, decline the swap advice.