Put the foreign-language document first, then the English translation and the translator's certificate.
Include the translator's certificate with the translation.
Keep each file under 12 MB.
How to do it with Requisito Listo
Open «USCIS: document + certified translation».
Add the PDFs and photos in the order requested.
The app joins them into one A4 PDF under the maximum size.
Upload or save it.
At the end you'll see a checklist: size, file weight, background and format. If something doesn't comply, it tells you what to fix before the portal rejects it.