Lawyer (native English speaker )with several Law degrees. I am educated in Human Rights.
I spent 5 years in a leading European university, doing Law to Master's level.
Now, I am doing a 2 year Barrister-at-Law degree (barristers are the legal experts in the wigs).
Also, have written many academic articles to date, and tutor undergrads, as well as proofreading.
Evidently, it's imperative to you have a skilled, legally educated, native English writer/speaker to do this task.