Visitor visa for relatives... sponsorship question

[dgada]

Hello all the gurus on this forum,

help me answer some question. few of my wife's relatives are planning to visit USA. Her brother's family and 2 Uncle/aunt families. in all 10 people including 4children.

My question is:

1. Could or should I send sponsorship document for each family. Will it help the case or would it be a hindrance since I am planning to sponsor so many people?

2. I had invited my parents last year. if I send support of affidavit to all of them would it become issue.

3. Should they apply on their own and we cross our fingers that they get visa.

Your guidance will be very helpful in this matter.

Regards
Deeps

[immihelp]

You can sponsor as many people as you like as long as the money to do so.

You should send one set of documents per family. (Family = Husband + Wife + minor children).