User blog comment:Chaotic38/Estimated Choices Timeline/@comment-3452092-20190306020948/@comment-36836718-20190324094145

Grace left for La Huerta around the time of Rules of Engagement Book 2 Chapter 10. That's when Blaire talks to her for the last time

What do the determinant notes mean? James Masquerade ball definitely happened between those books

In Red Carpet Diaries Book 1 Matt mentions the title Mr Oiled Abs 2017 so the time fits