Writer for a German letter

I am looking for a skilled German-speaking writer to compose a medium length (2-3 pages) letter in German for a business purpose. This could be a formal letter, memorandum, or other written communication depending on the circumstances. The ideal candidate will have experience writing for business or academic applications and be able to produce a well-crafted, persuasive letter in German. I am open to any suggestions and look forward to hearing back from a talented professional who can help me with this important task.