Hi,
I am a native English speaker who has been living in Germany for almost 50 years. I do occasional translation, editing and proofreading work as well as linguistic consultancy and quite frequently voice work.
I am afraid I have no idea what your requirements might entail (business, technical, legal, academic, medical, etc), but the word 'document' suggests it is fairly serious stuff!
That is why I have put in a bid at the lower end of my usual hourly rate, hoping that you will understand that important documents demand more that the back-street rate your initial offer reflects!
If you want good, reliable, accurate language work, then it would be an honour to supply you with this service.
Greetings from Hamburg.
JRK