Article writer needed

We are looking for someone to write articles for us on a regular basis. At present we need 4 articles written for a swimming pool website. The articles would require some research and would need to be factual in nature. We would expect the information researched to be written in your own words, not copied. We can check with CopyScape. Native English speakers would be best. Each article should be approx. 500 words long. We will give you the key words and LSI keywords to include in the article. We would need these 4 articles delivered within 1 week. Please understand this is a technical topic and it needs research. If you are not confident you can do this, please do not bid. Please understand this is on-going and would be a long term relationship. This bid is for 12 articles for the next 3 months. We will create 3 milestones, (4 articles each, 1 milestone per month). As you complete and deliver the articles we will pay you at each milestone. Here is a test run: please could you write on this topic (up to 100 words) and we will select the best. The topic is: "Gunite Pools" (keywords to include: gunite pools, swimming pool design) Thank you, Somesh and Jasmine.