A listing agreement is a contract between homeowners and brokers that legally establishes how a realtor will find a property buyer on the seller's behalf. ANSWER: Form 101 is designed to specify and list one property for one seller.This guide will help you to understand the changes and the proper way to fill out the forms. Throughout the transaction you may receive more than one disclosure form. The law may require each agent assisting in the transaction to present you with this. More information will be in the following subsections: 4.3.1. Fill out and submit listings and changes to any multiple-listing- service. This nonexclusive agreement allows the seller to use multiple real estate agents to sell their home.