what differs domestic partners from roommates then? It is possible that roommates have occasional sex.

这真的很麻烦，要卖房子还得女的同意才行。男的当时怎么想的？

I don't think there is a clear-cut answer, just as anything in life.

现在阿Q没用，而且是女的不和男的结，不是反过来。找律师告女的吧，女的如果请不起律师，肯定会settle for less than 1 million。男的可以损失小一点。

I thought they need to hold out as husband and wife to qualify for 加州事实婚姻. Otherwise, they could be just roommates. Apparently, they have not held out as husband and wife.

I heard the condition is much stricter. Not just showing up together in public, but they need to be referred by public as Mr. XXX and Mrs. XXX, which condition is not easy for Chinese people to qualify. The guy should seek a good attorney. It's possible that he doesn't have to give anything to the woman.

男的可不可以说加女的名字是为了结婚呢？不结婚，女的就当然不能有产权了。不知道胜算多少，不过１百万还是值得多找几个律师问问看。

事实婚姻也不是那么容易就qualify的。也是有很多条件的。很重要的一个条件就是外人要叫他们先生太太。估计根本不是那么回事。不是同居就qualify事实婚姻。