Do I have to cast three votes?

No, you do not have to cast three votes. There are three open seats on the Sebastopol City Council. Five candidates are vying for those three seats. The three candidates who get the most votes will win. Please vote only for those you feel are the best, whether that's one, two, three (or none at all). This will maximize the chances of the candidates you believe are best getting elected.  Do not dilute your voice with an “extra” vote that will only reduce the chances of your preferred candidate(s) prevailing. Voters do not have to cast three votes (or any at all actually).