As a professional writer with over ten years experience in creative, academic, and business writing experience, my exposure to written English in all its forms is expansive.
While I prefer long form work-- it allows me room to spread out and have some fun--, I'm just as comfortable turning around a steady stream of 500-1000 word SEO articles, with a quick turn around time that doesnt sacrifice quality.
As a native American English speaker, I know how to establish a casual, conversational tone that sounds natural to an American audience, as well as formal, structured material for B2B communications that establishes and maintains a professional tone throughout.