Can I make my previous employer remove my name from the 10 year wall plaque?

Unless the plaque is defaming you, no, there is nothing you can legally do to force them to remove it.

You have not asked a question, but assuming you are an at-will employee, it would not be illegal to suspend you under these circumstances.

I plan on suing 2 people in Small Claims Court. One has refused delivery of the demand letter. Any advice?

If you are suing, a demand letter is not necessary. You just serve the complaint and summons upon the defendants. Hire a process server. They...

Yes, a court should be able to take judicial notice of this, depending on the authority you cite.

Assumption of a business real estate rental lease...

Yes, it is common, but it depends on the terms of the lease . It would have to be reviewed to properly advise you.

Won Vacation from Employee of Year. Company merges with another company. No longer honors won vacation. Legal?

Assuming you are an at-will employee with no contract in place, yes, this is legal .

I am involved in a case before LA Superior Court. We have an upcoming hearing on June 23, 2015. I filed a motion.

Just serve both of them for now, to be safe.

Question in regards to LLC in the state of California

Unless you plan on doing business under this LLC in the future, there is no need to take any action as the taxes are owed by the LLC only, not you...

Is it illegal in California for my boss to fire me if I don't promote their business on my personal Facebook page.

Assuming you are an-will employee, yes, your boss can fire you for this reason.

My company has let me go after 16 years, so how should I counter offer on a severance package?

You can have an employment attorney negotiate your severance package with the employer on your behalf. A full consultation would be necessary to...