We sent a save the date to FI's godmother & her husband (6 months ago). Godmother casually asked my FMIL if it would be ok with us if she brought her adult daughter instead of her husband due to his work schedule. We have absolutely no problem with this since Godmother won't know anyone besides FMIL. I'm just wondering now do I address the invitation to Godmother & Daughter or do we still send it as Godmother & Husband? I don't want her to think if we put husband that her daughter is not welcome to take his place, because she is. I don't want to put all 3 names because we only budgeted for 2 of them. Thanks!!