notice of relocation, review legal?

I have am sending a certified letter to my ex in regards to a custody agreement. Please review and give me your professional opinion...addresses and names are obviously changed for privacy.

As per our court order agreement and in regards to relocation in docket # xyz entered mm, dd, yyyy, I am giving you my 30 day written notice and am informing you of my permanent move within Blankety Blank County. In order to be closer to work and due to financial struggles at my current residence, 123 Main St, No where NY, it is deemed necessary to move to lower the cost of living expenses and to benefit our son, Johny boy Our new permanent address is: 123 Main st, Utopia , NY The move in date is July 4, 2017.

I am arranging for child care and you will be notified of the caretaker once care is secured. I am giving you this original notice and a copy of this letter will be retained with myself for future reference. Thank you.