You may continue to need SSN but you are not eligible for it and will not get it. Yes, your sister may seek I-130 for you if she is a USC but that application will not bring tangible benefits for you in the next 14 years or so, which time you would either need to stay out of the USA or maintain a valid nonimmigrant status in the USA as her filing I-130 for you DOES NOT, in and of itself, give you a right to stay here.
NYC EXPERIENCED IMMIGRATION ATTORNEYS www.myattorneyusa.com; email: firstname.lastname@example.org; Phone: (866) 456-8654; Fax: 212-964-0440; Cell: 212-202-0325. The information contained in this answer is provided for informational purposes only, and should not be construed as legal advice on any subject matter.
Once your sister becomes a US citizen she can file an I-130 for you. But you will have to wait at least 12 years to be eligible for a green card.
Alexus P. Sham email@example.com (917) 498-9009. The above information is only general in nature and does not constitute legal advice. It does not create an attorney-client relationship.
Visitor visas are for visiting. They are not supposed to be used as a stopping point on the way to permanent residence.
Besides, my colleagues are correct - only US citizen sisters/brother can petition for their siblings, but the mere petition would not give you the right to live and work in the US legally.
As far as lawyers "demanding much amount," I'm sure you get paid for your work just like we expect to be.
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