Article writer Require to write a software firm articles

Project Description:
I want to have the articles about my online firm.Here are the Titles of these Articles.
1.About us
2.Web development services
3. SEO services
4. Web designing services
5. Content writing services in different languages.
6. Advertising/marketing Services.
7. Classified posting service.

Requirements.
1. 100% unique.I can catch even a single phrase copied and will not pay you.
2. Unique and great Writing style.No general article writing you are writing for a firm.Appears to be written by a professional.
3. Do not apply If you never did similar job like it.
4. We need it at good pace so can give you 3 days maximum for writing 7 articles of 450-500 words.
5. Every Article need to have keyword density of 1%.4-5 times repetition in Article.
6. Free from grammatical mistakes.