The commission shall consist of: 3 members of the senate appointed by the senate president, who represent a district with a significant population of Cabo Verdean residents; 1 member appointed by the minority leader of the senate; 3 members of the house of representatives appointed by the speaker of the house of representatives, who represent a district with a significant population of Cabo Verdean residents; 1 member appointed by the minority leader of the house of representatives; 1 member appointed by the mayor of the city of Boston; and 1 member appointed by the governor. The commission shall elect 2 co-chairs from among its members. The co-chairs may select, with the approval of a majority of appointed members to the commission, not more than 15 additional members to serve on the commission; provided, however, that such additional members shall reside in or represent municipalities with a significant number of Cabo Verdean residents or heritage.