Hi Riten,

I recently went through the same process. These days you just send a welcome letter, you dont need to sponsor DV winners. But for backup I did sent one sponsor letter in case if they asked for while interviewing.

You dont need a green card or citizenship, just send them your bank statement, for about pase 6 mth, show the reasonable balance depending on the no of people you are trying to welcome.And a letter from you employer saying you are theirs employee. Your other legal documents like H1 or so so.

In welcome letter, just say that you'll be helping them by providing any types of support once they are here by all the means you can and you have the means to do that.

Its better for the DV winners to contact to some agency in nepal who do this kind of processing. They are perfect in doing these stuffs, so that your relatives just know what they need.

By the way how many ppl are coming ?

Good luck !

Sampada

Thanks Sampada. 

It's just one couple - husband and wife.  We are helping them start a new life here.  I hope things will work out great.

Riten Bro

 Ask a lawer first because we had to a send a document called  Affidavit of support or sponser ..somethin like that...On top of our tax returns and bank statements and a welcome letter, It does require that you will be the person responsible for their every actions in AMerica in case of emergencies or any thing regarding law with them. Fortunately the person we helped is a freind and got the Visa and will stay with us untill she gets to know things around and we will help her.

                                                         Good luck

such letter is not required these days. 

Sponsor  must be US citizen or Green card holder.

Documents:

Affidavit of support Form I-134

Attach Recent Bank statement or letter from a bank, Tax return for last 3 years , Sponsor's Job letter from employer with I-134. You can download Form I-134 instructions for more information.

http://www.uscis.gov/files/form/i-134.pdf