English to Portuguese and Spanish Translation

I need semi-formal books or articles translated from English to Portuguese and Spanish. The text is semi-formal, and the translator must be fluent in both target languages. Ideally, you should have:

- Proven experience in translating books or articles
- Strong understanding of semi-formal language nuances
- Excellent grammar and vocabulary in Portuguese and Spanish
- Attention to detail and ability to meet deadlines

Please provide samples of previous work and estimated completion time.