(1) The declaration, any amendment, any instrument by which the provisions of this act may be waived, and every instrument affecting the property or any unit shall be entitled to be recorded. Neither the declaration nor any amendment thereof shall be valid unless recorded.
(2) In addition to the records and indexes now required to be maintained by the recorder, the recorder shall maintain an index whereby the record of each condominium project contains a reference to the declaration, each conveyance of, lien against, and all other instruments referring to a unit affected by such declaration, and the record of each conveyance of, lien against, and all other instruments referring to a unit shall contain a reference to the declaration of the property of which the unit is a part.