Final answer:
Susan can begin practicing real estate once her state's licensing board processes and approves her application, issues her a license, and any other state-specific requirements are fulfilled.
Step-by-step explanation:
The question "When can Susan begin practicing real estate after passing her salesperson's written exam on July 1st?" involves understanding the legal requirements for becoming a licensed real estate salesperson. Typically, after passing the written exam, a candidate must also submit an application to the state licensing board, complete any required background checks, and provide proof of errors and omissions insurance, if required by state law. Once the licensing board processes and approves the application, they will issue a license, and that is when Susan can legally start practicing. However, this timeline can vary by state, and some states may allow temporary practicing while awaiting licensure.