If you are going to term, I would detail anything. Make it short and sweet.
Dear ___,
Effective ___, I will be terminating our childcare services agreement. After this date, I will no longer be able to work for your family.
Thank you for this opportunity and best of luck to you in the future.
Signed,
____
KEEP IT SIMPLE!!! And, if you need to provide a "REASON" to your licensing agent, than tell them she wasn't complying with your rules and regulations and you just couldn't work for the woman anymore.
