When must a licensee respond to a complaint regarding a license law violation?

A licensee must respond to a complaint regarding a license law violation within 20 days. This timeframe is established to ensure that responses to complaints are handled promptly and efficiently, allowing regulatory bodies to address issues in a timely manner and uphold the integrity of the profession. Timely responses can prevent escalation of issues and demonstrate the licensee's commitment to compliance with regulatory standards.

In the context of the options provided, this 20-day requirement is critical because it reflects the regulatory commitment to maintaining accountability and responsiveness in the real estate profession. The other timeframes mentioned may not align with the standards set by the regulatory agency, which is why the 20-day response period is the correct choice.