Final answer:
An unlicensed manager of an apartment house would be violating real estate law if they engage in activities that require a real estate license, such as managing the property for a fee, collecting rent, or negotiating leases.
Step-by-step explanation:
An unlicensed manager of an apartment house would violate the real estate law if he or she engages in activities that require a license, such as negotiating leases, collecting rents, or managing the property for a fee when these activities are performed on behalf of others.
In many jurisdictions, these activities are considered the practice of real estate management and, therefore, require a valid real estate license. An unlicensed individual who performs these tasks may be subject to legal consequences, including fines, penalties, or other disciplinary actions. It's essential for anyone managing an apartment house or any real estate property to be familiar with and comply with the licensing requirements of their specific state or country.