I just want to add that the idea of your wife's continued employment in China as a CCP member, is not going to work. In order to get a spouse visa, she'll need to resign from the party anyway. If that means losing her job too, then it comes with the territory. This is an issue to look into carefully as part of your research. It's not something I'm up to date on. Maybe you can get answers in the China regional forum.
I'm suspecting (not recommending) the attorney is thinking her leaving her job and the party, and seeking to adjust status through USCIS from within the USA, instead of a visa through Guangzhou Consulate, will solve this problem. Again, suspecting, not agreeing or recommending.