Final answer:
A broker must provide the Information About Brokerage Services form at the first substantial conversation to ensure transparency and establish the relationship between the broker and the client.
Step-by-step explanation:
The broker must provide the Information About Brokerage Services form to a potential client at the first substantial conversation. This requirement ensures that clients are fully informed about the services that the broker will provide and establishes the nature of the relationship between the broker and the client. It is a critical aspect of the real estate industry to maintain transparency and protect the interests of all parties involved. While there may be other forms used in the industry, such as a Broker Disclosure form or a Summary of Services form, the Information About Brokerage Services form is typically the mandatory document required by law, at least in some jurisdictions like Texas.