Do you have a high level of English expertise?

We require someone with a high level of English expertise to check a document.

The check is to include spelling, grammar, and punctuation.

The document is however a sales document, and the following must be taken into account:

In general I want the grammar to be correct, although we have a house style for marketing documents which works in broad terms like this and affects the grammar at times:

• They have to be easy to read, so aimed at about reading age 12 (that’s proven for marketing effectiveness)
• We write as we speak (that makes the text easier to read)
• Short words, few Latin derived words, short sentences, short paragraphs
• We use capitals in some places in the headlines and sub-headlines
• Only use jargon where we absolutely have to

It is a 26 page document with just under 12000 words

We need to know credentials and experience