Hey there!
I’m John, I read your ad and decided to offer you my writing services. I noticed you prioritize native French speakers, I want to warn you upfront that I am not a native speaker but I have fair knowledge of French; it is my second foreign language in philology and linguistics, thus I am quite skilled at using it in writing parallel to English. I think you should also know that I specialize in content writing and translation. Therefore with all my relevant skills I kindly invite you to contact me, in case you are willing to cooperate.
Regards,
John