§ 804. Contracts void. Any contract willfully entered into by or with a municipality in which there is an interest prohibited by this article shall be null, void and wholly unenforceable.
N.Y. General Municipal Law § 804, under Conflicts of Interest of Municipal Officers and Employees.
N.Y. General Municipal Law § 804
§ 804. Contracts void. Any contract willfully entered into by or with a municipality in which there is an interest prohibited by this article shall be null, void and wholly unenforceable.