Two sheets meant to be read against each other
A certified translation for Brazil is usually read next to the English document rather than on its own. That is why the shape of the page matters: fields in the same order, headings in the same places, entries lined up so the pair can be followed together by a person who reads only one of the two languages.
Flowing prose would obscure all of that. A civil record is a grid of labels and short entries, and its meaning depends on which entry sits under which label. Moving blocks around, or folding two boxes into one sentence, breaks the single comparison a reader is actually able to make.
Portuguese, kept in the original order
Brazil works in Portuguese, so a certified translation into Portuguese in Sunderland is the version an office there will be reading. It follows the English document entry by entry rather than section by section, which leaves the sequence of names, dates and places unchanged from the first line to the last.
Small details travel with their positions. A footnote printed under a box stays under that box, and a note written across a margin is recorded where it was written. Where a line on the English sheet was struck through, the Portuguese page shows it struck through in the same place.
The certificate that travels with the pages
The certification is a certificate of accuracy, signed by a professional certified translator and attached to the Portuguese pages. It stands behind the wording and the arrangement together, because an entry placed under the wrong label would be as real an error as a mistranslated word would be.
There is no sworn Portuguese translator in Sunderland involved anywhere in this. The credential rests with the certified translator who signed, and the working test of the result is whether a reader holding both versions can move between them without ever losing their place.
Per-page cost and turnaround
The rate is about £25 per page and standard delivery is 2–3 business days, with an express option at 24 hours. Pages are counted as the original sets them out, so a single card printed on both sides is counted as the two sides it actually has.
Timing depends most on the copy you start from. Ordering a fresh certified copy from Sunderland Registration Service produces a sheet whose boxes and rules are sharp, which makes the structure obvious to the translator and keeps a household's own record out of the postal system entirely.