Wondering how to write a business letter to your client? You’ve come just on time. This advocate letterhead format design example is perfect for you and your needs. Match it to your business right now. Upload your custom fonts, brands, logo, personal information, and signature. Then download this customizable advocate letterhead template and save it for later. Share it with your clients privately. Or choose to print it on high-quality paper and offer it personally. Your choice, for real!