H-1/Want to Invite Parents

[immihelp]

I am on H-1 status and planning to invite my parents to US on B2-visa. I have my younger unmarried brothers in US (one on internship and other one studying). Other than assets such as house and business my parents do not have family ties in India.

I have few questions as follows

Me, being unmarried daughter. Is it appropriate to sponsor my parents for US visit? (What I heard- it is always married daughter sponsoring her parents has success rate)

How high are the chances of getting visa to my parents, as all the three kids are residing in US?

What are the possibilities of getting rejected again? (My parents have been refused a visitor's visa reasoning as potential immigration 10 years back-sponsored by my aunt)

Your answers are greatly appreciated. Thanks in advance.

[immihelp]

1. Yes, you can.
2. It really depends.
3. It is difficult to say.