INTRODUCTION: These guidelines are provided to assist Broker and attorneys who are completing the Offer to Purchase and. Seller shall sell to Purchaser and Purchaser shall purchase from Seller condominium unit ​______ located in Mecklenburg County, North Carolina, with a street.While it may be called an offer letter, it is a legally binding agreement. A clean, well written offer with good communication is very important to the sellers and the listing broker.