I work for an association management company and this is exactly why I am in accounting and not the management department. Boards can be a pain. There is usually always at least one person that is "unruly" and difficult to work with.
Our terms here run 2 - 4 years so sometimes you could be stuck with this person for years. There is a way to get out of it, but it's more of a pain too.

Well, I hope she is not re-elected and things can calm down again.