Mich. Comp. Laws § 487.3337

Sec. 337. (1) A savings bank may sell 1 or more of its branches to a bank, out-of-state bank, national bank, association, or savings bank located in a state whose laws would permit a savings bank to purchase 1 or more branches in that state of the purchasing depository institution. (2) A savings bank may purchase 1 or more branches, without purchasing all or substantially all of the depository institution, from a bank, out-of-state bank, national bank, association, or savings bank. (3) A savings bank that purchases 1 or more branches under subsection (2) shall provide notice as required under section 417 before operating the purchased branch or branches.