I currently filed form I-130 for my mother few weeks ago. I just got a I-797C letter in the mail.

You should be able to do it but make sure to apply for it at least 90 days after she arrived.

I am on OPT I got job offer as a chemist but my major in project management and concentration in biotechnology

My concern would be with the viability of the school. Is it one of these diploma mills that frequently are the subject to investigation by the...

Substance abuse and Visa

Yes, it could have an impact. It really depends upon the visa and what the charges were.

You should not return to the country from which you gained asylum until you are a citizen. Even then, if things were so bad you needed to claim...

No, you can submit copies for the application. You should bring the originals to the interview, though. They do not need to be notarized unless...

Will the filing of immigrant petition like I130 FB2 be difficulities of getting non-immigrant visa like B1/B2?

If she has already applied for a green card (immigrant visa) at the consular level, she should not now apply for a non-immigrant visa like a B-2.

Green card?

Some of them do get caught. If it is later discovered that they committed immigration fraud they will lose their immigration benefits and be...

What happens in my situation?

You may have incurred a ten year bar due to your overstay. Also you may have been deemed to have abandoned your TPS. Both of these are due to...

Does applying for unemployment benefits affects green card holders or when it comes to citizenship application?

Unemployment is not considered a benefit in the public charge determination. People pay into it with their wages, so it is treated differently.

Can my mother travel while her green card application still pending or in progress?

She can travel if you apply for advanced parole. Generally applicants submit this along with their travel dates with their green card application.