189.30 Contracts invalid. No action shall be maintained in any of the courts of the state upon any contract or sale made in violation of or with the intent to violate any provision of this subtitle by one who was knowingly a party thereto. [C97, §2520; C24, 27, 31, 35, 39, §3056; C46, 50, 54, 58, 62, 66, §189.28; C71, 73, 75, 77, 79, 81, §189.30] 94 Acts, ch 1023, §39
Iowa Legal Code