RE: Help, Iowa Tag Question
You can party hunt only during gun season and in doing such any member of the group can continue to kill deer as long as the group has enough collective tags for all deer. I'mcertain that you cannot do the same for archery season. Otherwise hunters would be having family members and friends buy tags for them to fill, thus getting the chance to shoot multiple bucks by bow. Sorry to hear of your injury. If your brother has already filled his tag and wants to get some more shooting in, their are usually plenty of doe-only tags avaliable up until gun season.
One other option is you should be able to get a temporary handicap permit form your doctor. If you check with you local DNR officer, you may be able to use a crossbow for the remainder of the season.