Filing a visitor visa for my uncle

[VeerBhadra]

I'd like to file a B2 visitor/tourist visa for my uncle (Father's younger brother) and his wife. I am a US Citizen and my Father has a green card and lives with me.

1. My uncle has a job in India as well as real estate property as well as a married daughter who lives in the same town.
2. I wanted to know if I should be the sponsor or my Father.
3. My Father is retired and only has a little bit of retirement income. Or should we both be co-sponsers?
4. What's the best strategy here?
5. Which documents are needed from my side and my father's side?
6. Which documents should my uncle provide?

[Genevaiaz]

Additional documentation may be requested at your interview or once you are eligible for a U.S. visa. Examples of the following types of evidence:

• Evidence of the purpose of the trip: invitation letter, etc.
• Evidence of the relationship between you and the inviter: birth certificate, photos together, etc. subway surfers
• Evidence of the inviter's status in the United States: passport, green card, student visa, etc.