OK , now you've entered a New Ball game .
There's a couple of confusing things though .
Did you both move to FL. at the same time w/ the children , or separately ?
Fill us in , with the time frames .
Secondly you said a Judge ordered her to stay put with the children in FL. until this could be heard but she fled back to NY w/ them .
Then the Judge said he couldn't do anything for lack of Jurisdiction.
If the children and her were only in FL. a short while , and they went back to NY ( where the Orders were made ) , then NY would retain Jurisdiction .
She can not then be charged with joint custody kidnapping , since you moved to FL. and remain there , and she wasn't gone from NY for long .
Yes , you will have to let a Lawyer in NY speak for you .