buddy even with photo and other stuff they don't really care because their marriage certificate is not issue in Iran. as u said her husband can go to Iran and do it in a week and come back.mehdiR said:It might be possible if the marriage certificate is issued in Iran , however I don't recommend it as well since u can not possibly show an important evidence =marriage photos.
think about it.
see if u could gather evidences like letters, plain tickets , phone call print outs , ...
Even if he could come back for a week for the marriage , that be perfect.
cheers