I was notified by Facebook that my personal data was harvested by Cambridge Analytica, how to file a suit?

FB did not do anything illegal, nor did Cambridge Analytica, nor the Obama administration before them who FB freely provided information to, nor...

Which country regulates social media & social networks e.g. FB, LinkedIn to comply with a law? Under which laws and sections?

Suggest starting with Google. Attorneys volunteer time to answer specific legal questions with general answers, you are asking for major...

Can I apply for a U.S. passport before applying for the N-600 Certificate of Citizenship ?

If you can document everything it's worth applying for the passport directly if you are certain you obtained USC through your mother. It sounds...

Sister judgment in Saipan, MP

You need to contact a Korean attorney. In addition to the other suggestions, the US Embassy often maintains lists of local attorneys, not vetted...

How to get my I-94?

You can get it here. https://i94.cbp.dhs.gov/I94/ Good luck.

From an immigration perspective it does not create any issues. However, from a personal liability, I would not recommend it. You are on the hook...

Is it normal that one's I-140 application is transferred to National Benefits Center for processing?

You can find processing times here. https://egov.uscis.gov/processing-times/

If you also filed for change of status you do not need to leave. If not you do. There are two things involved. The visa, which is your ticket...

Just after the naturalization ceremony while waiting US passport, am I able to travel internationally?What do I need for it?

As long as your current passport is valid you can travel. If you already applied for passport it should not take more than a few weeks. If not,...

What can I do when someone threatens me about trademark but nothing in the trademark database?

At this point you need to hire an attorney to respond. Based on what you say doesn't sound like he has a claim. If he is filing for trademark can...