Which of the following is classified as a service contract in real estate?

A listing agreement is classified as a service contract in real estate because it establishes a contractual relationship between a property owner and a real estate broker. This agreement authorizes the broker to provide services related to the marketing and sale of the property. The broker agrees to act on behalf of the property owner, using their expertise to secure potential buyers, negotiate terms, and manage related transactions.

In contrast, purchase agreements, sale agreements, and lease agreements are primarily focused on the transfer of rights to property or the terms under which property is rented. While these agreements are essential for real estate transactions, they do not define a relationship centered around providing services like a listing agreement does. Instead, they deal with the definitions of buying, selling, or leasing real property itself, rather than the service of facilitating those actions. This distinction highlights why the listing agreement is classified specifically as a service contract in real estate.