Any official or employee of the Town of Kennebunkport who has a financial interest, either direct or indirect or by reason of ownership interest in any business entity, enterprise or corporation, in any agreement or contract with the Town of Kennebunkport for the sale of land, materials, supplies, or services to the Town, shall make known that interest and shall refrain from voting upon or otherwise participating in his capacity as an official of the Town or an employee of the Town in the making of any such sale or purchase or in any other manner relating to the undertaking or performance of any such contract or agreement. Any officer or employee of the Town who willfully conceals such financial interest or willfully violates the requirements of this section shall be guilty of malfeasance in office or position and such action shall constitute grounds for removal from office or position as herein provided. Violation of this section by any municipal officer or employee with the knowledge, either expressed or implied, of such financial interest shall render any related contract, sale, agreement, or obligation voidable by the disinterested members of the Board of Selectmen in the exercise of their sole and absolute discretion. Any officer or employee violating the provisions of this section shall be held personally liable for any damages suffered by the Town or any office or agency of the Town arising out of such action.