Iowa Code § 633.257
If no such arrangement is made, the surviving spouse may keep the property by giving like security to pay the claims of all others interested upon like terms.
[C51, §1405; C73, §2451; C97, §3375; C24, 27, 31, 35, 39, §12004; C46, 50, 54, 58, 62, §636.19; C66, 71, 73, 75, 77, 79, 81, §633.257]