Hi Michael, I've posted this information before but you're new to the forum. I have used this company service for invitation letter for a Russian visa many times, and it was always easy, quick, and professional. The invitation was accepted by the Russian consulate in Houston without a single question. They sent us a scan of the invitation by email and we printed it out. That sufficed for the consulate. The price is 1,000RUB ~ $15. https://visa4u.ru/Pages/en-visasupport.aspx Good luck.