I'm a Lisbon native who learned English at a young age, and I'm perfectly fluent. I have many friends in the United States, and I often write fiction in English. I'm an art student with a lot of downtime, so I have a generally fast turnaround.
I would say that I am best at translating fiction, and that you should hire me if you need something done fast but with quality. If need be, I will also explain why I have translated things in the manner I did; I'm glad to help you learn a little Portuguese.
I will translate anything up to 600 words as a loose rule. I accept haggling.