Section 28-6.1-11-3 - Limitation on investments; investments in holding corporations(a) Except with the approval of the department, the sum invested in real property used for the convenient transaction of business may not exceed fifty percent (50%) of the unimpaired capital stock, surplus, and retained earnings of the savings bank.(b) The investment may be made in the stock of a corporation organized to own and hold the real property occupied and used wholly or in part by the savings bank.