the first thing I was wondering is whether she is complaining of any back problems. Since she has been hyper-lordotic all her life, I would not upset the apple-cart by trying take her into ranges of motion that her body resists.
I would use exercises where her core muscles need to stabilize while keeping her pelvis neutral (even if her neutral is not the way we would typically define it. Teaching ‘drawing in’ maneuvers and using a ball to sit on for exercises can accomplish those tasks.
It sounds to me that you are just starting with this client. Just go easy at first and observe how she moves. Ultimately, every workout is an assessment, and you should be able to find appropriate ways once you know more about her.