I'm looking for advice and thoughts on what my ex-wife is asking of me.

My daughter (14) recently expressed a desire to move from the small town where my ex-wife is from in New Mexico (where she was born and has lived until now) to where I grew up in Pennsylvania.

I recently drafted a Pro Se Motion to modify the visitation schedule to allow for this and to modify my daughter's residence and document the date of the move.

My ex-wife said she will sign the documents provided that my daughter can assure her that she will maintain at least a 2.5 GPA. Originally she wanted to have it be a 3.5 GPA and she wanted it to be expected each 9 weeks. I got her to agree to a 2.5 GPA average over the first 2 nine weeks prior to Christmas break. And after the 2nd Semester after school is out. Otherwise, she wants it stipulated that she would be expected to return to New Mexico.

After discussing this with her I am ok with the terms we agreed on.
I am curious what all of your thoughts are though? (my first question)

Also, I have no idea how to draft that stipulation. How should I write it in the Motion?
(that's my second question).

I'm thinking something like:
The terms of this order to modify the previous decree are dependant on the criteria that the minor child maintain a grade point average (GPA) of at least 2.5 after completing her first semester of school in the school district that she will be attending in Pennsylvania. Should her GPA fall below 2.5 it would nullify the proposed Order to modify and ... (I don't know)...

the minor child would have to return to New Mexico and the terms of residency and visitation provided in the original Stipulated Decree would be.... (I don't know how to word it...)... re-enforced?

What do you all think?