Looking for advice on a HOA trustee breaking the bylaws

[Marc V Palmeri]

Hi,

Its recently come to my attention that one of the trustees of our condo association is short-term leasing their unit in violation of our bylaws (which require rentals to be at least 1YR terms).  I find it alarming that a trustee either doesn't know the bylaws or is purposely breaking them to serve their own interests.  I feel like it's one of those situations where it's not an egregious enough for there to be any real recourse, however, I find it extremely unethical that this person whom is supposed to be making decisions in the best interest of the collective owners is willing to break the rules to advance their own interests.  Has anyone dealt with a similar situation before that could provide some advice on what to do about this?

thanks,
Marc