Frequently Asked Questions - Green Card through Parents

LPR petition for son
My mother just got recently approved to migrate to the US as LPR. I am a USC. Now I was wondering how soon my mom can submit a petition for my brother who is unmarried and over 21. I am assuming it would be faster for my LPR mother to petition my brother than me.

It will be faster for her to petition and she can do so as soon as she wants. I would suggest she should apply when she moves to USA. If you wish, you can also start a petition for your brother. He can wait in more than one category.

GC petition for a 21 year old
My friend filed a petition for an adult child (over 21 years old) six years ago and just received notification this year that there's a visa number available for the child. Meanwhile, the child has traveled to study and obtained a permanent residence in Canada. However, the child still wants to join his mother to the United States. Will the US give the child a GC if all the requirements are met?

Sure. The fact that he is in Canada is not an impediment.

GC through mother ....
My parents got GC and I could not get it since I was 21. I am now in the US on H-1B. My mom applied for me when she was a permanent resident under the unmarried son/daughter category. In 2009 I got a letter from USCIS that my visa is available since my priority date was Sept 2001 but in 2009 I was already married and my mom became a citizen after we got married. My question is - can I file for new I-130 and request them to allow me to use the old priority date (Sept 2001)? What are the chances of them allowing me to do that?

As far as I know your PD cannot be reused because you lost it through becoming ineligible for the visa category.

Father wants to sponsor me
I arrived in the U.S. with a non-immigrant visa that expires 2016, my dad is a permanent resident who is now applying for his citizenship. My dad wants to sponsor me while i remain in the us. What forms do we have to fill out and would i be able to live and work in the us while my status adjustment is processing.

Review Form I-130. You cannot stay in USA while or just because the case is pending, unless you have some visa/status that allows you to stay.

Impact on US immigration for violation of other countries’ laws
I recently became US citizen and now planning to file for green card for my own parents from India. However, in past my parents overstayed on their visitor visa(6 months) in UK from 2002 to 2013. They applied for asylum in 2006 and case was going on but then they withdrew their file and then they were sent on their emergency passports(as their old passports were lost and expired, they were given white passport) to India. They had no other criminal activity there and also have No Objection Certificate from Police department of the city they were staying in UK. Now they have their new passports printed from India. I wanted to know that Does any of this situations in past makes it difficult for them to obtain permanent residency in USA?
Child Turning 21, Immigration Consequences for Pending Green Card Cases
I am on H-1 Visa and my son is on H-4 visa. He is 17 years(studying 11th grade). I wanted to know whether i need to change the visa status at the age of 21. If so, the green card processed by my employer for him will still be valid or not. Also, if he goes to India for studying his degree for like 4 or 5 years, will the green card processing for him will be valid.
Dual Intent Visas and Filing green Card in Multiple Categories Simultaneously
My sister is a naturalized US citizen and she is planning on applying for my GC. I have 2 questions: 1. If my company decides to sponsor my L1-A visa (after my GC application is submitted) will my L1-A be denied because of my GC application?. I have a multiple entry 10 year tourist visa that will expire in 2017. If I apply for a new tourist visa in 2017, will that be denied? 2. Furthermore, my father's GC (consular processing) is being processed currently. Once he becomes a GC holder, can he apply for my GC (I am single over 21 years of age) in such cases Processing time is also much less. If my father can sponsor my GC, what happens to my application in the unfortunate event of my father's demise during this period?

See clip from Attorney Rajiv S. Khanna's conference call video that addresses this question. 

https://youtu.be/R4-_pic6TzY?t=103

FAQ Transcript