An association must hold a special meeting of unit owners to address any matter affecting the common interest community or the association. (3) Special meetings.The twenty-day notice may be waived for special meetings upon consent of the chair. This page provides a general overview of the Washington State Open Public Meetings Act (OPMA) as applied to local government agencies. Typically, board meetings require less notice of as little as 7 days to at most 30 days prior. So at least one month. Annual and infrequent (e.g. Yes, each year the board or commission must file a schedule of regular meetings, including time and place, with the Code Reviser. In Washington State, homeowners generally have the right to attend regular monthly HOA board meetings. In Washington State, homeowners generally have the right to attend regular monthly HOA board meetings.