Indiana Code Title 36. Local Government § 36-7-22-11

Sec. 11. An ordinance adopted under section 7 of this chapter must establish an economic improvement board to be appointed by the legislative body.  The board must have at least three (3) members, and a majority of the board members must own real property within the district.  However, if there is only one (1) property owner within a district formed before March 1, 2010, the legislative body shall appoint one (1) member to the economic improvement board who owns real property within the district and not more than two (2) other members who are not required to own real property within the district.  After, February 28, 2010, a district formed under this chapter must have at least one (1) parcel of real property that is not owned by an owner of other parcels of real property in the district.