How to drop no contact order? It's his first charge ever and want to know what I can do?

Now that you got the police involved, it is out of your hands. The best you can do is focus on helping him in his defense.

Nope - FMLA is for child, spouse or parent. If you had an in loco parentis relationship with the aunt as a child, that would qualify, too.

How do I evict ex when decree identifies three day notice to vacate?

What agreement? Divorce? If so, it would be contempt. If it's something else, eviction under the Iowa landlord tenant act, just like any other...

Yes, you can be required to stay on site for an unpaid break in the middle of a pandemic.

There are a number of factors that determine whether the 180 days even applies to his situation, which makes this a great question to bring up to...

Do I have a malpractice case?

I'm sorry, but what is your complaint here? To have a malpractice action, you need to have an injury. Your ego or not getting things your way...

Who’s responsible the owner of the vehicle or the parents of who was driving the vehicle ?

You, the minor's parent, and the car's owner are legally responsible.

How do I, as the sister of the principal, see/receive copy of Durable Power of Attorney, and Revoke current POA?

You need to consult with an attorney in Iowa personally. This is WAY too technical to try to answer over this simple forum.

Off your property? Yes. Off the public road? No.

If you want to keep your license, you'll need to have the speed over reduced - you should consider hiring an attorney.