Final answer:
FINTRAC is the regulatory body requiring identity verification for unrepresented individuals in real estate trades, aimed at preventing money laundering and terrorist financing.
Step-by-step explanation:
The regulatory body that necessitates identity verification for unrepresented individuals in real estate trades is FINTRAC (Financial Transactions and Reports Analysis Centre of Canada). FINTRAC is Canada's financial intelligence unit, and it is tasked with detecting and preventing money laundering and terrorist financing activities. Real estate brokers or sales representatives are required to verify the identity of individuals conducting a real estate transaction and keep records of these verifications. It is a regulatory agency in Canada that is responsible for implementing and enforcing laws and regulations related to money laundering, terrorist financing, and other threats to the integrity of the country's financial system.