Many other states are de facto community property states. There is often some sort of "equitable" division of assets in a divorce. In practical terms this often appears quite similar to the de jure states.
One of my favorite quips was from Tom Arnold, during his second divorce. He said something like "she wants half of half of Roseanne's money".
Can the members of the marriage(spouses?) change that?
Here in Spain some autonomous communities (like the states in USA) have community property as default and some others have asset separation as default but when one gets married can decided which one to use
http://www.nytimes.com/2016/05/29/opinion/sunday/why-you-wil...