Appellate Division of the Supreme Court of the State of New York October 17, 2012 (Doroski v. Ashton)

*903Modification of an existing custody arrangement is permissible only upon a showing that there has been a change in circumstances such that modification is necessary to ensure the best interests of the child (see Matter of Strand-O’Shea v O’Shea, 32 AD3d 398 [2006]).