This is a legally binding Real Estate Purchase Contract ("REPC"). Utah law requires real estate licensees to use this form.In Park City, Utah we typically do not entertain verbal offers, all offers must be written. This form from the Utah Real Estate Commission lets professional realtors create an official contract for the sale or purchase of residential property. Real estate offer letters can be in the form of a pdf file, template file, sample, or form. Step 1: Initial Details. This will begin with a prospective buyer's indication of an interest in the property. Establish the terms of a real estate purchase. How to Fill out the Real Estate Purchase contract on the Utah MLS. 3. Property. Fill out the street (physical) address of the property the buyer is purchasing.