Which of the following powers is granted to the Commissioner during an examination or investigation?

The power granted to the Commissioner during an examination or investigation to administer oaths or affirmations is significant because it ensures the legitimacy and seriousness of the information obtained during the process. This authority allows the Commissioner to compel truthful testimony from individuals being examined, which is essential for accurate reporting and uncovering any potential violations of mortgage lending laws and regulations. By utilizing this power, the Commissioner can ensure that all statements made during the investigation are made under penalty of perjury, thus encouraging honesty and transparency from the parties involved.

The other options represent actions that would not fall within the scope of the Commissioner’s authority. Limiting access to the bank’s property could infringe on rights that are not typically allowed unless under specific legal conditions. Investigating personal matters of licensees would overstep the boundaries of professional conduct unless it directly relates to their licensing duties. Controlling a company's financial assets also exceeds the regulatory role of the Commissioner during investigations. Therefore, administering oaths or affirmations stands out as a crucial and appropriate power relevant to the Commissioner's role in maintaining the integrity of the mortgage lending process.