When explaining the reason a person was terminated, how should one respond after legal settlement?

Attorneys should not ever advise you to lie unfortunately.

NOT PAID ALL SALARY DUE FOR EARNED LABOR AFTER RESIGNING.

You should be paid all wages you are due. But you seem to state that you were on salary. If you worked over 40 hours and were correctly...

Do you believe you are being paid less due to some form of discrimination?

Do I have to be currently employed by a company to apply for H1-B, or can they offer me a job for when the H1-B would start?

It sounds like you need to speak to an experienced employment attorney.

Speak to a local attorney, but I suspect you should be able to simply offer to ship the items back. Should be less than $10.

When will I be able to recieve my check?

You may want to contact your State's Department of Labor for assistance. One month is too long to wait in my opinion.

Should be fine if you were never charged.

What rights do I have when asking for reasonable accommodations at work?

Are you self-determining what accommodations you need or gathering advice from a doctor?

What should I do?

Have you considered simply reaching out to corporate HR to see if they could take steps to transfer you away from this manager?

16yo busboys?

Sounds improper, that training should be paid and there seems to be a tipping issue as well.