Most definitely. E Lynn Harris' novels usually deal with urban life, its challenges, and the relationships of people within cities, which are key characteristics of urban fiction.
Common themes could include friendship, self - discovery. Since I'm not super familiar with this specific fanfiction, these are general themes that often show up in fanfictions.
I'm not sure specifically which Alexia Raye Lemon fanfiction is good. You could try searching on popular fanfiction websites like Archive of Our Own. There might be a variety of stories there related to this that other fans have rated and reviewed.
Yes. Billy Lynn is based on a true story. The filmmakers drew from real-life incidents to create the plot and bring the story to the screen. However, like in many adaptations, certain details might have been modified or enhanced to make it more engaging for the audience.
Mrs Harris is typically not a true story. It might incorporate fictional elements, settings, and events to create an engaging narrative for the audience.