Experience can't be faked. In English Arabic translation, this is a fact. So choose a translator with wide experience. Nobody like an expert can provide you with what you are looking for in translation.
Qualification is good for translator, but when you add experience, you can rest assured of what you are going to get. Your job is to side with experience no matter what.
To hire an expert in translation, you have to see how many years he has spent solving translation problems.
If such expertise is combined with an academic qualification, you have the best of two worlds at your service.
Then, you can have your English Arabic translation done in the best manner possible.
This is your part of the process. Leave the other part for me.
You will receive your English Arabic translation in the best manner.
An expert qualified translator you can depend on.