Hi sir I want to know that my sister has filed a immigrant visa to my mother and she is with her

If your mother is in the US waiting for adjustment of status, she will need an advance parole document to travel.

My felony bar for naturalization;Can USCIS use discrepancy in their on limits to find on me to be a person of good moral charac?

You should be ok to apply for citizenship, just attach "extra" proof that you have rehabilitated.

A sophisticated situation, B visa, a trip to Europe and so on ...

It may affect your future applications in two ways. First, an application for asylum demonstrates that you have an immigrant intent. Second, a...

Can I study in California with b2 visa?

No, you may not. You should have an F-1 visa.

I would confirm your name to the spelling in your passport.

How to write a letter for an overdue decision

Check the USCIS website www.uscis.gov to see if your I-751 is overdue

How to change name in h1 b visa?

I agree with Mr. Behar, obtain a name change during your consular visa stamping process.

I agree with my colleagues, the easiest way is to request and obtain a name change is during your consular visa stamping process.

Should I ask my company to request an expedition for I-539 application?

I agree with Mr. Behar, check www.uscis.gov website for the requirements of expediting a request.

Need help with citizenship

I agree with Mr. Behar, schedule an Infopass and inquire about the status of your application.