Any note, bill, or other evidence of indebtedness and any assignment of wages or salary given to or received by any wage broker in violation of any of the provisions of this part shall be void as against the creditors of the assignor or transferor.
When Note, Instrument, Or Assignment Void
Mont. Code Ann. § 31-1-310, under Wage Brokers.
Mont. Code Ann. § 31-1-310