80. A natural person who manages a place of business shall devote himself exclusively to his managerial duties in any of the following situations:(1) where 15 or more persons who have held an affiliated real estate agent’s certificate for less than 2 years are assigned to that place of business;
(2) where 25 or more persons who have held an affiliated real estate agent’s certificate for any length of time are assigned to that place of business; or
(3) where 30 or more persons who hold an affiliated real estate broker’s certificate or a chartered or affiliated real estate agent’s certificate are assigned to that place of business.