All property, including funds acquired or held by an authority pursuant to this act,¹ shall be exempt from levy and sale by virtue of an execution, and no execution or other judicial process shall issue against the same nor shall any judgment against the authority be a charge or lien upon such property; provided, however, that the provisions of this section shall not apply to or limit the right of obligees to pursue any remedies for the enforcement of any pledge or lien given by the authority on its rents, fees, or revenues, or the right of the federal government to pursue any remedies conferred upon it pursuant to the provisions of this act. An authority may waive its exemption hereunder with respect to claims against any profit-making enterprise occupying any portion of a project provided that such waiver does not affect or impair the rights of any obligee of the authority.