Blog and forum posting on 50 websites

We need manual blog and forum posting related to our products. Posts must be unique and and include a follow up answer by a 2nd poster in answer to the first blog posts, or they can be in answer to already existing blog posts. Poster must research what blogs and forums to post on, register to post where needed, and maintain a spreadsheet online showing which posts have been made. Perfect grammar is a must. Poster must have very good command of English, and not come across as a non-native english speaker. The aim of my project is to not only get backlinks for SEO purposes, but to create unique on topic posts that appear made by humans in response to other humans. I don't want to have the same post on many different forums, as I fear google may now or in the future penalize me for such blog comment spamming. I'd like to generate real traffic directly from the blog comment links, as well as traffic from improved SEO. The comments are meant to stick as long as possible and not be generally discarded as spam. I'd like some of the backlinks directly to each product - so various blog and forum comments can link direcly to the products, rather than to the main site. Your bid is for two comments by two seperate users on 50 different on topic websites, and will include a spreadsheet of your username and password login for each website, the url of the website, and the url of your comment. Only comments that stick and are not deleted are to be counted. This is ongoing work. Can be full time.