The property and improvements which the Seller is agreeing to sell and which the Purchaser is agreeing to purchase is known as. Some examples of documents you may need to sell your home are: Property survey: This is a legal document that shows the buyer the boundaries of your property.The Colorado Real Estate Commission has created standard approved forms including a purchase and sales contract for all types of real estate transactions. Learn about your options, from full-service Realtor to going it alone, and all the hybrid programs available today.