I have a family law question about petitions

The Hillsborough County case will control.

My ex to be is telling me that he will use the money on the 401k to pay court fees,,,, can he do that with out a court order??

the 401 is half yours so you should file a motion preventing him from doing that

Unlikely. They can however tap into the SSI award.

Financial affidavit

If there is a blatant inaccuracy yes.

What are my rights pertaining to keeping my son away from his mother when she has spanked him and left bruises?

You have to file documents with the court to change the time sharing arrangement asap.

You can just set the final hearing without his filing a financial affidavit.

I never married my daughters father. He left 5yrs ago & hasn't see her or been involved in anyway since. What are his rights?

He has no legal rights to the children until such time as he goes to court to establish his rights.

I NEVER ANSWERED DOOR TOOK KIDS TO RELATIVE OUT OF STATE CAN FL DCF REMOVE KIDS FROM OHIO / GRANDMA

Either state can remove your children.

Girlfriends ex threatening me with legal action for throwing items away

If you gave him advance notice that you were going to toss his stuff you will be ok, otherwise maybe not.

Can a parent prevent an adult sibling from seeing the other sibling?

You are not one of the parents so unless your dad allows contact not much you can do.