It sounds like you have been doing everything possible to follow the order and have also been going above and beyond that to ensure that you get to see your children.
I can suggest that the next time you get to see your children ask them if they know their address. Ask them the name of their school or doctor. Anything that you may be able to look up on the internet to find out an area.
I’m not sure about some of this but I do know that legally, you have a right to their medical and school records since you are their father. I suggest contacting Medicaid to report fraud and what to do about her using this program. Since there is private insurance provided, Medicaid can only legally be used as a secondary insurance. My husband’s ex did this also. Medicaid will have her address and should be able to at least get you the county that she is in. They will want to contact her and if they need verification then they will ask for a copy of the insurance card since she is supposed to provide to them. Medicaid fraud is serious and your insurance company will end up paying Medicaid back for any charges that it should have been covering.
The only thing I could tell you about filing the child is that if you have a court order giving you rights to file, then file the child. The IRS will only let one of you file and possibly will halt both tax forms from going through until it’s found out who should NOT be filing. It used to be whoever got their forms in first and the second one would be held up. It may still be this way but you can contact the IRS to find out.
There is no certain age that a child is allowed to choose. The child’s wishes are taken into consideration but nNormally this is worked out between the parents. The courts choose who has been the primary caregiver for the majority of the time and what is best for the child. The best situation is for both parents to be involved as much as possible in the child’s life and the courts do recognize that.
If you want to modify custody you would need to file for that. If you’ve moved from Florida to TN it’s possible that the custody/visitations should be changed since it would be easier for you to see your children. For modifying though you would have to file in the county where the child lives…
If a judge decides that testimony can only be gotten straight from a child then it would be up to that judge whether or not the child could testify. It would not be in open court.
You can also record telephone conversations. In NC it’s legal to record a conversation as long as one party knows it’s being recorded. I am not sure about TN…keep good records and document everything that is said, done or paid for…
As a side note, your children are old enough to understand now what their mother is doing. When you talk to your children have at least one of them memorize a phone number for you. Don’t tell them it’s because you can’t always contact them due to them moving, but that you want them to always be able to contact you. If you have to…explain to them how to call collect. Let them know that you would like to see them more frequently and talk to them at least once a week. When you find out the school, contact the counselor there and let them know this situation. Find out if there’s anything you should know and find out if there’s a way for you to talk to your children while they are at school. During school hours they are in the school’s custody so their mother can not prevent you from visiting there or monitor a phone call…
Maybe some others have different suggestions.