Every municipality in addition to other powers conferred by this or any other act, shall have power, by proper resolution of its governing body, to create as an agent of such municipality an authority to be known as the “housing authority” of the municipality. The municipality may delegate to such authority any or all of the powers conferred on the municipality by this act, and may authorize it to employ an executive director, technical experts and such other officers, agents and employees, permanent and temporary, as it may require, and to delegate to one or more of its agents or employees such powers or duties as the authority may deem proper. Such housing authority shall have the power to sue and be sued.

In any suit, action or proceeding involving the validity or enforcement of or relating to any contract of the authority, an authority shall be conclusively deemed to have become established and authorized to transact business and exercise its powers hereunder upon proof of the adoption of the resolution herein prescribed. A copy of such resolution duly certified by the clerk shall be admissible in evidence in any suit, action or proceeding.