Sponsoring a Russian?

you have to send an email to the russian visitor and also send the same copy to the U.S embassy in russia.If you are sponsorin the whole trip then you have to fill in some forms and send the same to the applicant in russia.You can download the same from the U.S embassy website.You also have to show your financial status. I could have copied the link for your reference bt seems we cannot copy and paste anythin here....Im sorry for that..But hope this information will help you.