628.9  Senior creditor.
  When a senior creditor thus redeems from the senior creditor’s junior, the senior creditor is required to pay off only the amount of those liens which are paramount to the senior creditor’s own, with the interest and costs appertaining to those liens.
[C51, §1931; R60, §3337; C73, §3107; C97, §4048; C24, 27, 31, 35, 39, §11780; C46, 50, 54, 58, 62, 66, 71, 73, 75, 77, 79, 81, §628.9]