Can I use promissory estoppel to prevent judicial notice of a licensing board agreement?

I suspect you mean collateral estoppel instead of promissory estoppel That is the beginning of your problems if you, as a non-attorney, are trying...

What do I do now?

You do not need to pay a civil demand letter. Keep the three letters, but unless there is a lawuit acutally filed, you do not need to send...

I agree with every aspect of Mr. Chen's answer and analysis.

Can a person start/file an LLC that is already a sole prop in their own name, which is NOT the name of the sole prop owner?

You seem to have good documentary evidence. Get a lawyer. A free site will not be able to solve your problem.

Is there a way to pierce the corporate veil of a major wireless telecommunications company?

Your misunderstanding of the term "piercing the corporate veil" is obvious. The idea that you will sue a major corporation without a lawyer is...

Is it legal for a person to file for an LLC that is already a sole prop in someone elses name?

You surely need a lawyer...now.

I am handicap, I have a blue placard in my vehicle at all times but got a ticket?

Call your local Palmdale police department and explain what happened. They will tell you the address and room number you can go to in order to...

There is no special language or "legalese: which is necessary. I would be complicated to add affirmative defenses you know or suspect to exist now...

I concur with both the answer and analysis of Ms. Koslyn.

No ref case number, no ref assigned to an attorney. It means it was assigned to a certain judge in a courtroom at the courthouse.