Which of the following actions is not permitted for unlicensed assistants?

Unlicensed assistants are not authorized to draft legal contracts due to the legal implications and the specialized knowledge required in real estate transactions. Drafting legal documents typically involves understanding intricate legal language and compliance with state laws, which falls under activities that require a real estate license.

In contrast, making phone calls to schedule appointments, gathering information for clients, and preparing marketing materials are tasks that unlicensed assistants can perform. These activities do not entail making legal judgments or offering professional advice, allowing licensed real estate agents to retain the legal responsibilities associated with those specific tasks. This differentiation highlights the importance of adhering to licensing laws in real estate, ensuring that sensitive legal matters are handled by qualified professionals.