Where a custody case belongs
In New York, custody can be decided in Family Court or, when there is a divorce, in Supreme Court. If the child has recently moved between states, a uniform interstate law generally gives priority to the state that has been the child's home for a set period before filing, so the right court is not always where you live now. Courts decide custody based on the child's welfare rather than on a parent's rights, and they look at the whole picture rather than a single fact. Once parentage is legally established, married and unmarried parents start on the same footing.
The people who will weigh in
Many New York custody cases include an attorney for the child, a lawyer appointed to represent the child's position. Courts may also order a forensic evaluation by a mental health professional, and caseworkers or school staff sometimes provide information. Expect your parenting history, the child's routines, and how each parent has supported the child's bond with the other parent to come under review. Gather school and medical records, the current schedule as it actually works, and messages about the child. Keep children out of the dispute itself, including conversations about the case.
Decisions to make early
One of the first questions is whether a temporary arrangement is needed while the case proceeds, because temporary schedules have a way of becoming the baseline. We also look at whether any order of protection, child protective case, or support case is connected to the custody question. Then we talk through what you are asking for and why, framed around the child's daily life. A clear, child-focused proposal tends to be more useful to a court than a long account of the other parent's faults. Parents sometimes reach an agreement partway through the case, and the court can turn that agreement into an order.