In a child
Ordered that the order is affirmed insofar as appealed from, without costs or disbursements.
In determining whether a custody agreement should be modified, the paramount issue before the court is whether, under the totality of the circumstances, a modification of custody is in the best interest of the children (see Teuschler v Teuschler, 242 AD2d 289, 290 [1997]; Kuncman v Kuncman, 188 AD2d 517, 518 [1992]). Because any custody determination necessarily depends to a great extent upon an assessment of the character and credibility of the parties and witnesses, deference is accorded the court’s findings (see Eschbach v Eschbach, 56 NY2d 167 [1982]). Its findings “will not be disturbed unless they lack a sound and substantial basis in the record” (Kuncman v Kuncman, supra at 518). Contrary to the appellant’s contentions, the Family Court’s determination to modify the parties’ joint custody agreement and award custody to the father has a sound and substantial basis.
Moreover, the Family Court was not required to follow the recommendations of the Law Guardian (see Matter of Hopkins v Wilkerson, 255 AD2d 319 [1998]). The Family Court did not arbitrarily disregard the Law Guardian’s opinion offered in this case (see Griffin v Scott, 303 AD2d 504, 505 [2003]). Rather, its reasons for rejecting the Law Guardian’s recommendation that joint custody should continue were fully explained and its reasoning is supported by the record (see Matter of Hopkins v Wilkerson, supra).
The mother’s remaining contentions either are unpreserved for appellate review, without merit, or refer to matters dehors the record. Smith, J.P., Townes, Cozier and Mastro, JJ., concur.