Mainly, should I form an LLC, or Sole proprietorship? If I form an LLC, can I run multiple businesses under that LLC?

Form at least an LLC to protect any personal assets you may own.

What if one person calls another person a bad name?

Nothing. Unless the person made a false statement of fact that causes damage, calling names is not actionable.

Could or Should I go to the police and let them know or get an attorney?

You need to have a lawyer write him a cease and desist letter immediately.

What can I do to get them to sign the title?

You may need to get a lawyer involved to write a demand letter and threaten suit if they continue not to cooperate and you may have to go to court...

What are the best ways to protect my logo and business texts when dealing with Chinese manufacturer for jewellery productions?

I strongly suggest you hire an IP attorney to protect your trademark and your logo in the United States and abroad. In addition, you should have a...

Do we have any legal recourse?

Mr. Hopkins response to your question is exactly what the law is regarding "as is" sales. Sorry for your issues.

Is that legal?

Yes its legal. It may not be moral, but it is legal.

You can obtain another title at DMV by stating you lost it and sign it over to her and file it.

What are some entry-level intellectual property roles that I could obtain to gain experience?

Any major city would have more opportunities. Washington, DC; Chicago, Seattle, Silicon Valley, Los Angeles, New York are all good starting points.

If a company sends you out to appointments and no sales ever come of it, is any money owed for your time, effort and gas?

No, but the expenses can be deducted from your taxes.