This is a legally binding Real Estate Purchase Contract ("REPC"). Utah law requires real estate licensees to use this form.The new construction repsi has some pretty significant differences from the regular purchase contract that we use when we're writing up just an existing home. This form from the Utah Real Estate Commission lets professional realtors create an official contract for the sale or purchase of residential property. Generate, fill in, and complete now. A quick rundown of the purchase contract so this is key if you're buying or selling this is the contract that dictates I mean the whole journey. A Utah residential purchase agreement is a contract used when a buyer makes an offer to purchase real estate from a willing seller.