Workplace wants me to sign confidentiality agreement

You have not asked a question, but assuming you are an at-will employee, this would not be illegal.

Would an attorney make a difference?

Assuming you were truly overpaid, then yes, you have to legally pay it back.

What makes a lease contract legal and valid?

It would depend on what exactly is the contract says.

What if i refuse to sign a confidentiality agreement

Your employer can then take whatever adverse action against you that they wish.

Yes, it generally means property damage. You can make sure with them and have them send you something in writing confirming this.

What type of lawyer do I need when trying to fight a case in pregnancy discrimination? I am the one being accused.

You need a business/employment attorney. A full consultation would be necessary to properly advise you.

My shift forced to change by a shift manager. I am working at a senior house as a care giver. Taking care of 6 old people.

Assuming you are an at-will employee, yes, this is legal.

I have a loan for office equipment. The loan holder charged me sales tax on fees related to my loan. Can they do that?

Depends on what the loan document say in terms of what can be charged.

What is the effect on a Complaint if Demurrer is sustained w/ leave to amend as to one cause of action but denied as to others?

The effect is that the Complaint will be thrown out unless the Plaintiff timely amends the third cause of action and submits a new Complaint.

I paid,thankfully with a check,a $250 fee to an employment agency that engages solely in illegal employment-without legal permit

You can sue this company in small claims court for the money