Final answer:
In an exclusive brokerage agreement, including the property's street address is essential as it legitimizes the transaction and prevents disputes.
Step-by-step explanation:
When engaging in an exclusive brokerage agreement for a property, the contract must clearly include important details about the property. One of these details is the street address of the property. This is crucial as it provides a unique identifier for the property involved in the transaction, and assists in legal clarity and record-keeping. Ownership by individuals or firms is necessary to legally enter into this type of contract with a property. Without the inclusion of an accurate street address, the engagement could be considered invalid or lead to potential disputes or confusion.