Moving Out of the Country with Child

My question involves a child custody case from the State of: NJ

I have residential custody of my son, but his father and I have joint legal, he and I were never married. His father is on child support, and on a visitation schedule which he does not abide by. We never arranged for any overnights. My son is on the autism spectrum. I supply medical insurance, and generally everything. The child support is minimal, and his father is in 500 dollars of arrears.

My husband is from the UK. He moved here to marry me because my son's father refuses to let us move. I haven't filed any motions because I don't want to be denied, as I'd be heartbroken, but I want us to move to England, and keep hoping his father will just let us move, but I think that hope has a very dim glimmer of hope.

Basically what am I supposed to do? Do I have any chance to be granted a move to England? I am willing to pay for half of my son's yearly trip to see his dad, but to be honest I don't think his father cares to be bothered with his son being his responsibility for even a week or two a year! I think he doesn't want us moving so he can: 1. Control my life in spite, and 2. Get to see his son whenever it's convenient to him. I've been very easy going with him. When he doesn't come to take his son, for whatever excuse he has, I tell him no problem. I don't care if he is unstable with his child, because I am the stable parent... And am very fine raising my son in my house only. I dont need him to be there for his son. But I try my best for my son to get at least some time with his father.. He sees him a total of 10 hours a week, one day a week, Sunday's, if he isn't busy, which occurs about once every two months on average. And I'm miserable here. I have wanted to move to the UK even when his father and I were still together.

Please help me.

In order for dad to prevent your son from moving would be if he was willing to assume full custody if you moved. If he has never had your son overnight, is that really something he would be willing to do?

Document Dad's visits with son over the last year, develop a long distance parenting plan that keeps dad at roughly the same amount of contact (at your full expense) and file with the court. It is really your only way to do this legally.