Can I sue my employer for suspending me and my workmates for accusations of violating a policy (we are all women of colour)

You didn't provide enough information. In general anyone can sue anyone but whether you win and or whether you have damages to warrant the expense...

Gig worker former/present and unemployment?

If you are on disability you aren't available to work so how are you unemployed? Also it looks like you weren't working for you were already...

Limited Risk?

You should hire a business attorney so you can address all of your questions in a professional manner. Having said that, I agree with the answer...

I am unclear by your question what you are asking--is the job school related for class?

Can I be forced to work an hour or more past my scheduled time?

As long as you are being paid yes. If you are working under a signed contract those terms need to be followed.

It depends. It would be better if he just asked you. If nothing negative happened to you, I don't see an issue.

Child support adjustment due to Covid-19

You need to hire a lawyer, file a motion to amend support, have a hearing and have the judge issue an order modifying your support.

You don't provide much so not sure. What is the agency issuing the ruling?

What can I do to make sure he never does this to anyone again? What's the statute of limitation?

You waited too long for a sexual harassment complaint plus it sounds like you have no proof.

You need to hire an experienced lawyer and he or she can do a proper evaluation of your case.