Hire an attorney to review everything and figure out what your company’s possible rights and remedies are.

You cannot sue for the same thing twice. You need to ask this to the attorney you used when you first settled.

You can sue. Though it will cost your friendship. Unclear if you would win on these thin facts.

I don’t see a lawsuit going anywhere.

This would not be a viable lawsuit in my opinion.

I am not sure what you mean by "of course I have not paid the deposit yet." Judging by your landlord's conduct it does not seem they expected you...

Hire an attorney to review it if you're concerned. And frankly, if someone wants to take your deposition you will not avoid it in the end.

Yes, anyone can sue. Whether he will win any money is not determinable from the facts presented. The key issue will be whether Walmart acted...

Hire an attorney to review the situation and make a demand to the employer that they defended and indemnify you.

Let him discuss it with his attorney. Mechanics lien is not an option based on the bare facts presented.