My dad died and I'm a beneficiary in his trust but I owe back child support, what can I do so child support doesnt take all my ?

The chances are slim to none on what you want and slim just left town. How selfish. Your children need to be supported.

If the two of you have already agreed on the date of separation, then what you do after is probably your separate property. But best practice...

You can't just redraft an order. You must get orders from a court or the parties need to come to an agreement on modification. There is a method...

Maybe their office is closed due to the COVID-19 matter.

I don't know what your original post looked like but often we can't give specifics because the original post lacked alot of detail. If the trust...

After someone dies and everything is settled (i.e. probate) a document is produced stating that. What is that document called?

You might be getting the cart before the house. If your mother's estate was not probated, then this must be done first. Talk to a probate attorney.

No you can't be held liable. Only your father's estate can be held liable.

As long as you both have prepared your Preliminary Declarations of Disclosure and served them to each other, you can waive the Final Declarations...

No. Only half of what was acquired during the marriage.

My mom passed away my aunt is trying to take everything and forged paperwork?what can I do?

Time to lawyer up on this to protect any interests you might have.