The Consulate on its website lists a number of translators, of which I am a member. On that page you can find our information to get in touch and decide with whom you want to work. Personally, I ask that potential customers send a pdf of the documents to be translated, both to be able to quote prices and timing, and to possibly work on the translation.
It depends on what you want. If the translation needs to be perfect, use an internet service.
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