Hello, I've been working as a salesman and a marketer for the last 7 years and I've been proofreading diverse kind of documents, from sales and marketing documents to technical (telecommunications) and academic papers (none of them should be written in the same way).
If you have a document and need to be sure is using the correct grammar rules in Spanish, I'll be more than glad to help you to proofread it.
If you need the translation check my others gigs or ask me for a customized offer. Tools like Google Translate are not good enough and they always miss something, so it will be better not to use them.
For a basic Gig, I will proofread 1500 words in less than 24 hours. If you need longer texts, please see my other Gigs or ask me for a particular offer.
Also, let me know if the document is for commercial, academic or technical purposes just to be sure the proofreading is exactly what you need.