B2 visa for brother and sister in law

[nsingh2]

Hello,
I am applying for my sister in law and brother's visitor visa.
Brother owns business and sister in law is going to start her own business soon. Is it a good idea if I sponsor for the trip?
They dont have any kids. What are the chances they will get their visa approved?
Thanks!!

[Bayfield]

They apply and should show their funds to support such a trip.

It is not a chance based system.