Any City Councilor, officer, or employee who has a substantial financial interest, direct or indirect or by reasons of ownership of stock in any corporation, in any contract with the City or in the sale of any land, material, supplies, or services to the City, or to a contractor supplying the City shall make known that interest and shall refrain from voting upon or otherwise participating in any capacity as a City officer or employee in the making of such sale or the making or in the performance of such contract.
24 Appendix V.S.A. § 19-901