Labor Lawyers Advice?
Sorry to say, Rev, but I've gotta agree with Mad Dart. California is an "At Will" work state and the employer has all the power.
Back in 2000 I was in the same situation. Let go without reason after 17 years in management solely responsible for the sales of a specific product line within the aerospace manufacturer I worked for and never a negative mark on my record. Had been a family-owned company that was sold twice in eighteen months. Second new owner came in and cleaned house with management.
All I got was "thanks for the 17 years, don't let the door hit you on your way out."
All they have to do is call it a "re-organization" or say her "position was eliminated". Now if they replace her with someone significantly younger at significantly less pay and you can prove it.....
Good luck with whatever course you take.