What can I expect? what can I do?

What is the garnishment for? More details would help.

Should I contact a lawyer about how my manager is treating me?

You have several potential issues - disability discrimination, workers' compensation discrimination. Yes, you should meet with a local...

There is not legal requirement that you get a raise, or that employees be paid the same amount. However, it is illegal to discriminate against...

It depends on the terms of the offer letter. Generally they are not contracts, and say this. However, there may also be an issue with WHY they...

Can I modify the dates that are set for lawsuit check ?

You need to see the court order or settlement documents. They would tell the terms of payments, and whether they can be easily modified.

What are my options knowing that a new hire was hired at a 28% higher salary than what I am making for the same position.

Unless the difference is because of your membership in a protected class, (age, sex, disability, etc.), it is legal.

What do I do if I don't have a W-2 or 1099?

I would imaging you are not an independent contractor, so you should have been given a W2. I would also imagine that your employer did not report...

Can I open a lawsuit for non-payment of wages?

Why would you want to sue and get into an adversarial relationship with your company for $10. Speak with HR, and ask them to correct the mistake.

What about if you only receive 45 minutes notice before your scheduled shift? is there a legal time frame to make this decision?

Unless you have a contract that states otherwise, you are entitled to be paid for the hours you actually work. That's it.

Your sentence depends on a lot of things - the severity of the offense, your past, etc. Sentencing is not the time to be getting a new attorney...