Louisiana Revised Statutes Tit. 6, § 521. Prohibitions

A. It shall be unlawful for a bank holding company to acquire direct or indirect ownership or control of any voting shares of any bank in this state if, after such acquisition, such bank holding company will, directly or indirectly, own or control five percent or more of the voting shares of such bank, or for any company to become a bank holding company as a result of the acquisition of control of a bank in this state, unless:

B. Nothing in this Section, however, shall prohibit a bank holding company from acquiring all, or substantially all, of the shares of the bank, or from organizing solely for the purpose of facilitating the acquisition of a bank which has been in existence and continuously operating as a bank for a period of five or more years.

C. Nothing in this Part shall be construed to permit a bank holding company or a bank with its principal office outside of Louisiana to establish a branch office or subsidiary within this state.