Certified Spanish Translation of Marriage Certificate for Immigration

I require a certified Spanish translation of my marriage certificate. The primary purpose of this translation is for an upcoming immigration submission to authorities such as USCIS, so accuracy and adherence to official formatting standards are paramount. The final translated document must include a standard translator's certification statement, the translator's signature, and the date of certification. It needs to be ready for submission without requiring any further edits. The source document is a scanned English original in PDF format. I expect to receive two deliverables: an editable file (e.g., Word document) and a clean, print-ready PDF version of the Spanish translation. Should this initial project be completed successfully and to a high standard, there is a strong possibility of follow-up work, including the translation of my birth certificate and other related personal documents. Therefore, consistency in translation tone, terminology, and layout across all documents is highly valued. Please outline your proposed turnaround time for this project, any questions you may have regarding names, official seals, or specific formatting requirements, and detail the process you follow to issue the official translator's certification.