Parents also petitioning my sister

[Hopeworld 1]

Hi guys, I'm in LA and petitioned for my sister 7 ago who lives in Sweden (she's 44, unmarried and has 2 children below 13 years old).
My parents have greencards and have 4 years to go before they get their citizenship.

QUESTION 1:

I was told it MIGHT be possible to bring her faster if my parents do a petition for her as well. Does anyone know if that is true?
I seriously do not understand what the heck is said in this page: https://travel.state.gov/content/travel/en/us-visas/immigrate/nvc-timeframes.html

 

QUESTION 2:
My dad is 80 my mom 72 they don't feel they would even be alive 10 more years.
What happens to an application if the person who did the petition passes away? 
Obviously I can't take over am I right?

 

QUESTION 3:

Since my parents combined don't qualify for the minimum requirement income, can I my self add as dependent ?

It states: "You may count the income and assets of members of your household who are related to you by birth, marriage, or adoption." in https://www.uscis.gov/green-card/green-card-processes-and-procedures/affidavit-of-support

I read online but can't figure out how much I need to have as final tax return amount I mean let's say my parents income are both $0 is it possible to calculate how much I need to make in order to be dependent on my parents petition for my sister?

 

 

If you don't know answer to both I appreciate any answer at all.    Thank you so much!!!!!!!!

[Boiler 45,740]

1. It might but will be close

 

2. Then there is no real point, it is only money to file. Well technically there may be a discretionary route, but more logical to go with your petition

 

3 Joint Sponsor is allowed but not an issue now. Who knows what the requirements will be a decade from now.

 

 

Edited January 7, 2023 by Boiler

[Hopeworld 1]

Thank you so much! 😃