How can i update my n400 before interview with uscis

You can inform the officer at the time of your interview and this should not be a problem.

My friend left the country before his first hearing 10 years ago can he get visitors visa.

For a complicated matter such as this, it is best to consult with an attorney in private.

My mother overstayed in the US, if ever I will apply for EB3 visa, will it be a problem?

Yes you must disclose all information on immigration forms truthfully.

How a drug posesion afects to apply for citizenship

Yes, a drug conviction may impact a future filing but more information is needed re: the criminal matter. Consider consult with an attorney for...

Will my tourist visa application be rejected if I disclose that I have a family member overstaying their visa?

Yes it may impact your visa and you must disclose all information truthfully.

Contact NVC directly to obtain the Invoice ID.

How can I apply for a passport for my one month old baby as my husband is not willing to co sign the application as required?

Consult with a family law attorney to obtain a court order granting you sole custody.

Yes you may apply for your step sister but this would take about 12-14 years for the visa to become available.

Unreasonable delay in my application for employment i-765 at the National Benefit Center?

Yes, the delay could be due to a past criminal conviction. You should consult with USCIS for case specific inquiries.

I would like to know if this misdemeanour is going to affect my immigration or any future visas I apply for?

This incident should not impact your immigration status but for confirmation, consult with an attorney in private.