I would like my mother to reside in the US as a permanent resident.

I have counseled many people not to apply for their parents to immigrate to USA where the parents were not committed to coming to USA to live. If...

How long will it take for an interview schedule when case transferred to NBC?

Processing times are posted on www.USCIS.gov.

It is regrettable that you hired an inexperienced attorney. However, you definitely need the assistance of an attorney with this current matter....

I overstayed my J1 for about 5-6 months, what will the consequences be once I return to my country (Italy)?

The answer to this question is complicated. A lawyer needs to review the exact dates in detail. It sounds like you already left USA but have not...

I am a m 1 visa student studying in USA, can I apply for a green card after I complete training?

You need to be eligible. Speak with an immigration lawyer to discuss your options.

These are all good reasons for using an attorney with this process. You're clearly asking for legal advice, which is beyond the scope of this...

How do I find out if my green card came

Speak with an immigration attorney about this matter. It is imperative that you find out exactly what transpired.

If im under 18 and i get a immigration medical exam, do they test for drugs?

The information you seek is available here: https://www.cdc.gov/immigrantrefugeehealth/exams/medical-examination.html

What type of Visa is required, B1 or B2?

It sounds like you can apply for a B-1 B-2 visa. It won't hurt you to have such a visa. If and when you become a Canadian citizen, you will no...

K1 Visa

You should speak with an immigration lawyer to discuss the reasons under which it was denied.