Website Content Editing and writing \'catch-phrases/slogans\'

We need the content of our website reviewed and edited to increase the standard of the content whilst maintaining SEO optimization. Our website is targeting highly educated English speaking professionals so only writers with relevant skill level need apply. Work to be done: 25 web pages need to be revised and edited, averaging 250-500 words per page. Need 3-4 slogans/catch-phrases to be used on home page. We will provide theme and some samples, you need to come up with better versions: e.g theme is quality, slogan could be something like 'when you need to be sure' etc. Please provide relevant samples. We will have ongoing work for the winning freelancer so please bid accordingly.