Wait, do some married people not have both names on the house?
Well if he owned the house before they got married why should he give her any of his hard earned equity?
good pointing. sharing with your wife is for losers
In this case I don't know why the wife's name needs to be on the deed. Isn't it important that they just have a place to live? There is no credible reason why the wife in this case needs to have her name on the house. Going halfsies is also obviously problematic.
Well the upside is pretty obvious. If one of you dies then the other still owns the house without having to go through any legal BS to get the title changed.
Now if you don't want your spouse to get your assets including the house if you die and/or are planning on a temporary marriage, then a lot of these issues could be avoided by not getting married.