What Marco Díaz does for you...

Marco Díaz is an English to Spanish translator in the San Diego area specializing in legal and business texts. Why not have your English source text translated by someone who is passionate about languages? Why not have a professional translator produce a well written, well-researched Spanish text for you? Why not impress your target audience, reach other markets, and grow your business by communicating clearly and conveying your message accurately? 

Marco Díaz's main goal is to make you look professional in every aspect of your Spanish language communications. He strives to build quality relationships with his clients through highly personalized service. Abiding by a professional code of ethics and practices are among his top priorities.

The benefits of working with Marco Díaz are on-time delivery, ready availability, and an expansion of your cross-cultural knowledge, which will provide you with a deeper insight of your Spanish-speaking audience.




Are you ready to discuss project specifications? It is important to evaluate the original text in order to give you an accurate estimate. 



Marco Díaz's services include translation of texts from English into Spanishediting or proofreading of either documents translated into Spanish or written in the target language itself, and copywriting.

Editing may entail either the correction of mistakes or rewriting of the text to ensure clarity, conciseness, and coherence.

Proofreading includes the close reading of the text in order to ensure there are no spelling or formatting mistakes.

Copywriting involves the translation from English into Spanish of your advertising promotional materials (brochures, website, e-mails, catalogs, etc.), which will help you convey effectively the value that you provide to your clients.

Fields of Specialization


Marco Díaz has acquired close familiarity with the proper terminology to produce accurate translations in the fields of contract law, company law, and family law, including, but not limited to the following types of documents: 

  • business contracts, sales and purchase agreements , articles of incorporation
  • court documents and dockets
  • minute orders
  • socioeconomic studies
  • home visits
  • ex-parte applications
  • all-county information notices
  • personal documents including birth, marriage, and death certificates, divorce decrees, and others (request free document translation quote).
  • criminal record checks and drug tests
  • mechanical and electrical engineering brochures and patents


Marco Díaz has worked with businesses whose target audience or staff are mostly Spanish speakers. He specializes in the translation of these documents:

  • employment policies (sexual harrasment and anti-discrimination)
  • debt-collection letters
  • letters to employees
  • labor relations
  • corporate finance
  • banking
  • insurance policies
  • business administration
  • import/export documents

I encourage you to read the guide Translation: Getting it Right published by the American Translator's Association in order to get the most out of your translation needs

English-to-Spanish Translator Marco Diaz

About the translator

Marco Díaz's credentials include the Specialized Certificate in Translation from the University of California San Diego Extension Program, specialized legal translation courses from Cálamo & Cran in Madrid, Spain, and a B.S. in Mechanical Engineering with a minor in Electrical from ITESM (Monterrey, Nuevo Leon, Mexico). He has four years of translation, editing, and proofreading experience. He has taught Spanish to non-native speakers for over eight years and been immersed in both Anglophone and Spanish-speaking countries for many years, which has allowed him to gain solid knowledge of Spanish and English grammar and understand the cultural nuances of both languages. Marco is an associate member of the American Translator's Association (ATA), the National Association of Judiciary Interpreters and Translators (NAJIT) and the Association of Translators and Interpreters of the San Diego Area (ATISDA). He is committed to continued education in order to strengthen and update his knowledge in his areas of specialization.


"Marco's translation work was superb. He was easy to work with and did everything he said he would do."

Larry Delrose
Italian American Films

"Marco Diaz is an invaluable source for accurate legal terminology translations. I have used his services on many occasions. He was immensely helpful to me with translating the Bill of Rights into Spanish."

Linda Brown
Adjunct Law Professor



  • Memo to employees: Roof restoration project (San Diego)

  • Client timeline letter (Arizona)

  • Minute Order from Juvenile Court (San Diego County)

  • Earned Sick Leave and Minimum Wage Employee Notification Form (San Diego)

  • Harassment and Discrimination Prevention and Correction Policy (San Diego)

  • Language and Speech Evaluation (Voluntary work in San Diego County)

  • Heat Illness Prevention Program (HIPP)

  • Speech-Language Pathology Daily Progress Notes

  • Orders under Welfare and Institutions Code


  • American Translator's Association 57th Annual Conference at the Hyatt Regency Hotel in San Francisco, CA 


  • Strategic Branding and Marketing for Translators and Interpreters (UCSD Extension)
  • Financial Issues that Matter the Most: How to plan a better future (ATISDA)
  • Business Translation (UCSD Extension)
  • Two Essential Tools for Your Toolkit: Dropbox and ABBYY FineReader (ATISDA) 
  • Legal Translation (Cálamo & Cran, Madrid, Spain) 
  • Translation of Contracts (Cálamo & Cran, Madrid, Spain)