All written instruments affecting title to real or personal property, including but not limited to deeds, releases, satisfactions, subordination agreements, severance agreements, consents, waivers, assignments, declarations of trust, and heretofore executed by officials or employees of the agencies or other entities referred to in § 1900.1 to carry out any purpose authorized by law, incident to the administration of programs under the jurisdiction of said agencies or other entities, are hereby approved, confirmed, and ratified.