i have cusdy of my grandson but hes been staying with his mother for about 4 yrs now can i have problems getting back

This is obviously as horrible situation and I would strongly suggest you meet with an attorney ASAP to help protect your grandson.  As far as the law is concerned, you currently have custody of your grandson, which means you have the final say with regard to his well-being.  I would suggest filing an Order to Show Cause (through counsel) under the same Docket Number as the case you and daughter started in 2005.  Your Certification will explain the situation and include all of your daughter’s and her boyfriend’s inappropriate conduct/behavior.  You will essentially request that your grandson be returned to you because you have custody and because you are worried about his safety in the presence of his biological parents.  The judge may ultimately decide that a hearing is necessary in order to decide what your grandson’s best interests are. This is obviously as horrible situation and I would strongly suggest you call my office at 888-888-0919 to schedule a free consultation. As a firm that exclusively practices family law in New Jersey, we can definitely help you.