Iowa R. Civ. P. 1.233
As amended through Septmber 9, 2024
Any number of defendants may be joined in one action which asserts against them, jointly, severally or in the alternative, any right to relief in respect of, or arising out of the same transaction, occurrence, or series of transactions or occurrences, when any question of law or fact common to all of them is presented or involved.
Iowa. R. Civ. P. 1.233