SEO Expert for 6 months

I'm looking for a long term SEO expert for a period of 6 months who is going to help me with the following: Phase 1 SEO Audits 1-Website audit 2-Keyword audit 3-Keyword Suggestion 4-Competitor's analysis Phase 2 On Page SEO -Website and content tweaking Phase 3 Business Directory Listing -Local Citation Listing -Niche Directory Submission -General Directory Submissions -Google/Yahoo/ Bing Local Listing Phase 4 Link Building -Niche Forum Posting's -Niche Blog Comments -Social Bookmarking -Social Media Profile Optimization (Digg, Stumble, Hub pages, delicious) -Article Writing and Submission -Press Release Writing and Submission -Web2.0 Posting