Dear Sir, Madam,
I am a native French copywriter. My level in French is excellent and I actually make write and proofread documents for particulars and companies.
I can proofread your document within an hour, and the result will be perfect, without any fault. I can even improve the level of the style if needed to provide a high quality.
Please feel comfortable to contact me if you have any questions, I will be happy to answer you.
Sincerely yours,
Melissa