What are my rights to my son and house that I have bought but recently left. I have been paying for the mortgage but she will not let me in the house

If you aren't married, then you kind of need to separate out in your mind the house issue and the child issue. With respect to the house, if you aren't married, then there won't be a divorce proceeding to sort out it's distribution.  It sounds like you own the house, and depending on whether or not she has her name on the deed, she may not have a right to remain there. With respect to your child, you are going to need to go to court to petition for custody and visitation if you can't agree with her about working out a schedule to see him, and you may have some additional issues since you were not married at the time the child was born.    I practice in the state, and I'd be happy to speak with you over the phone or in person.  Lots of luck to you, Eric Reimer ___Eric Reimer, Esq.Paramus, NJ(877) 885 - 8800ezr@reimerlawfirm.com