A conflict of interest is declared to exist when the vote or other official act of or by any Councilman, or any member, whether permanent or temporary, regular or alternate, or elected or appointed, of a beard, commission or committee of the Town, or any issue, ordinance, resolution, petition, application, appointment, contract or award, may result in the financial gain or advantage or otherwise affect the financial interest of:
A.
That Councilman or member;
B.
The following relatives of that Councilman or member or of the spouse of that Councilman or member: spouse, child, grandchild, parent, grandparent, brother, sister, uncle, aunt, niece, nephew or first cousin;
C.
A member of the immediate household, residing with that Councilman or member;
D.
An individual, partnership, association or corporation with whom that Councilman or member has or, within one year of the taking of the vote in question, had, financial or business dealings, provided that "financial or business dealings" shall not include routine, insubstantial or commonplace business transactions of a de minimus nature or those shared or engaged in by the public at large;