Real Property Transfer Declaration: The Real Property Transfer Declaration is used by the county assessors to establish the value of real property for property tax purposes. In addition, the form is used to properly adjsut sales for sales ratio analysis. This form must be attached to any property conveyance recording in the county clerk's office. This is an official Colorado Real Estate Commission form that complies with all applicable Colorado codes and statutes. USLF amends and updates all Colorado forms as is required by Colorado statutes and law.