Sir,
I have worked for more than 5 years with an international law firm in Paris as a translator English-French-Spanish.
Here in freelancer I have also translated all kind of documents: websites, letters, blogs, emails and even a book.
I have a DALF-C1 in French and a B2 in English (I can send you a copy of my certificates).
I could work 10-15 hours per week (even more if there is an urgent project).
If you have any question, please, feel free to ask.
Thank you for your time,
J.M. Leon