Edit, sign, and share volunteer confirmation letter online. No need to install software, just go to DocHub, and sign up instantly and for free.Here is a sample letter that you would have them fill in with supervisor from the volunteer place. Next, select a non-profit organization where you intend to complete your community service. The first step is completing a Form R-1, Business Registration Application to register a nonprofit group. The document is a formal request for a verification letter regarding volunteer work at an organization. Edit, sign, and share volunteer confirmation letter online. No need to install software, just go to DocHub, and sign up instantly and for free. How long does it take to complete the volunteer process? Please go to vspapps.vsp.virginia.