Sorry but NYU is not going to give her aid if the forms are late. It doesn’t matter whose fault it is.
The profile opened in October. Their deadline was February. As others mentioned your ex filling out the forms does not obligate him to pay. There is not going to be my part and your part because you make more money.
Schools do not care who pays as long as the bill gets paid. It sounds as if you have a challenging non custodial parent, Which could make it more difficult. Do you really want to do this for the next 3 years?
As others mentioned NYU is not generous with aid to anyone other than HEOP students. Unfortunately, your stats do not put her in line for big merit money. The best you probably will get from them is an admit deny; academically they will admit but will not give her enough to make it affordable.
What is her intended major?