Edit and Enhance Existing Articles

I am looking forward to update few existing articles. To do the job, I want a native English writer preferably from US or Canada. If you are not a native english writer, please do not bid on this project. I will provide you with current article of about 500 words. Your job is to edit the current article and expand it to 1000 - 1500 words. Payment will be based on per article basis. Payment will be calculated on word count difference of the current article and the article updated by you. For example, the word count for current article is 500. You worked on the article and the article is now 1200. The payment for this article will be (New Word Count - Original Word Count) x your rate per word + a credit for editing the article. Even though the payment is based on word count, the quality of the article must be maintained to a good level (not less than 1200 in lexile scores). I would use the lexile as the standard to determine quality if any dispute in the quality of the content arise. The grammar and sentence structure should be correct. A bounty will be given if the article is supported with relevant images and youtube videos. You will be fired immediately if you will submit a copied content. Please use the following format to bid on the project. I am from {your country}. State your fees and explain why should I hire you. Thank you and happy bidding.