Final answer:
An authorized representative with a power of attorney can legally act on behalf of the principal in real estate transactions, provided the document is in writing and recorded.
Step-by-step explanation:
The individual authorized to act on someone else's behalf through a power of attorney is given the legal authority to perform various acts, such as signing documents, for the person who granted the power. When it comes to real estate transactions, the power of attorney must be in writing and officially recorded to be valid. Therefore, in these circumstances, the agent has the legal right to act as if they were the principal themselves, given that the power of attorney has been duly executed and recorded.