Need a reliable writer for Microsoft Outlook related articles

I need services of an exert writer who knows about Outook and Office 365 basic features. We write 2 articles per week on our blog and my previous freelancer is no more available from 16th July. So, we need a reliable writer who can commit atleast for 3 months. (You will have to sign an Agreement to serve us for atleast 3 months). Pay is fixed $300 for a month. In a month, you will write a total of 8 articles (2 articles per week). Before hiring you, I would like you to write a small sample of 350-400 words, so that I can see your skills and if you are a good resource for my content writing team or not. Please do not apply if you can't write a sample of 400 words. Bid at or below $300 per month.