my 7 year old daughter and i live in tennessee and my ex-wife lives in florida. when my ex and i divorced, the child was living in trinidad with my parents so there were no child custody papers made. my daughter has been living with me for the past year and now my ex would like to have visitation of her for a week in the summer. my ex has admitted that she might not want to send my daughter back. i understand by law, that i have custody and if the mother wants custody she will have to come to the state the child resides in? do i need to have some sort of custody papers drawn up so i know the child will be returning to tennessee?