The Illinois Real Estate Broker's License replaces the salesperson's license.  The real estate broker must be employed by a sponsoring broker and work under the supervision of a managing broker. 

The Illinois Real Estate License Act requires that an applicant for a broker's license must:

• Be at least 21 years of age
• Hold a secondary school diploma or GED
• Be employed by a sponsoring broker or property management firm
• Successfully complete 90 credit hours of  broker pre-license education
• Pass a state exam
• Complete post license education prior to first renewal

Complete details may be found in Section 5-27 of the Illinois Real Estate License Act.