The HOA was forced to file a grievance due to the employer's disregard for Michigan law over the payment of wages earned when assigned duties as outlined in the collective bargaining agreement for working any portion of a contractual holiday.

Michigan law states the following:

(4) An employer who has established a regularly scheduled monthly pay period is in compliance with subsection (1) if the employer pays to the employee, within 15 days after the end of a monthly pay period, all wages earned during the monthly pay period.

Not only is the employer ignoring the law, they insist that they may take up to 60 days or more to pay your wages.  While you may have 60 days to notify the employer that you worked, they must pay you in a timely manner. 

Link to the grievance