Do I need an employment law attorney?

This sounds like direct evidence of discrimination. You should consult an employment attorney to represent you.

I have an employee that I recently hired who was arrested at my place of business for a moral crime he has not been here 90 days

It would be a good idea to discuss the specifics with an employment attorney, but based on just the information here, I would say yes.

My employer has me listed as exempt salary . I work 60 to 80 hrs. Week and on call 24/7.

I agree that you are misclassified. Please be sure to keep track of all your hours. There are apps that can be used for this purpose.

Will forming an LLC disqualify me from continuing to receive Unemployment benefits?

You would need to report any registered business to the TWC: http://www.twc.state.tx.us/jobseekers/report-your-work-earnings

How can I get my pay for the unpaid hours?

If you do not want to hire a lawyer, Google Texas Payday Law and submit an unpaid wages claim through the TWC. Keep in mind that by doing so you...

If it is mandatory training, it should be paid as time worked.

Can an employee be fired for filing a lawsuit?

It sounds like a clear-cut case of illegal retaliation.

My manager fabricated negative comments about my 2014 job performance to justify demoting me with an option to fire me in 3 mos.

You should have an attorney review and negotiate your severance agreement. It sounds to me as if they should have called it a lay off, but instead...

My boss does not pay me over time I work 54 hours a week 6 days a week and she does not give lunch breaks or breaks 9hrs a day

Both the unpaid overtime and stealing your tips are violations of federal law. You should see an employment attorney about a collective action.

Do I need a lawyer for this case?

It would be wise to have an employment attorney advise you regarding USERRA compliance.