What can I do to protect marital assets from sale due to my estranged husbands current child support obligation?

You have no standing to interfere with his other case. Sounds like the court only said he has assets from which he could pay support so he will...

How long do I have to file an objection?

If there is no case then file a motion for summary judgment with the court and schedule it for hearing.

If the child has mandatory FCATS then the child should be in school, you can file a motion but the judge will likely do little or nothing

How do I present the evidence I have to prove my wife unfit in a divorce/child custody case?

You have to get certified copies of her court convictions. plus certified copies of her arrests, dont just pull stuff from the internet.

Temporary custody of nephew's

You can file a petition for relative custody per Florida Statute 751, you need a court order.

What happens if my wife doesn't show up in court after I file an answer in a divorce/custody case?

If she will not pursue her case then make sure you have filed a counter-petition so you have your own case to proceed on.

Hi, I was wondering if both parents can be their child's Guardian Advocate? He will be turning 18 in Dec. and he has downs.

Yes you can do that, you have to file a guardianship case and get the court to approve both as guardians of the ward.

What evidence can I requested for childcare costs?

subpoena the day care records and do a request to produce to your ex to produce all receipts for the day care.

What happens to my child support when I go back to school?

The court will likely impose minimum wage, you have to pay support even if you go to school.

Your best course of action is to cooperate with CPS so they can get all the facts and close the case, and also you should get a lawyer.