Membership in the Real Estate Board (REB) of Jamaica is mandatory for individuals and entities engaged in real estate transactions in Jamaica. The Real Estate Board is the regulatory body responsible for overseeing real estate transactions and ensuring compliance with relevant laws and regulations.

However, if you are referring to the Realtors Association of Jamaica (RAJ), membership is not mandatory but is highly beneficial for real estate professionals. The RAJ is a professional organization for real estate agents and brokers in Jamaica, providing networking opportunities, educational resources, and advocacy for its members. Joining the RAJ can provide valuable support and resources for real estate professionals to enhance their careers and stay updated on industry trends and developments.