No, he cannot. There has to be a motion filed and a judge can decide what happens, if you both cannot agree.

Can a collection agency contact my employer to verify my employment.

If you told them you do not want them to contact your place of employment, and they do contact, they would be violating the Fair Debt Collection Act.

When do I need to stop working using the H1-B after applying for a status change?

You must stop working as soon as your F-1 is approved. The H1-B will no longer be valid.

I cant afford a lawyer, do I have to have one for my situation? Is there a loop hole some where? I want my son back.

You need to contact an attorney in Ohio. You would need a court order to bring him back to Florida. Law enforcement cannot do anything without a...