Advice from different perspectives.

The mother of my children decided to move in with her sister in another county over 300 miles away after we seperated. My 2 boys are very young 3 and 1. She took off with my boys with her mothers help one day while I was working. She did not discuss this with me or try to compromise at all. I was just as involved in every aspect of their lives as she was, as was my mother. After trying to reason with her and reconcile for almost a month she revealed that she had filed for child support. It took me a small amount of time but I did hire an attorney as well as a private investigator to locate and serve her. She has been located however the apartment management is not co-operating nor are they answering the door. The p.i. is working hand in hand with my attorney and I have been informed that they will take steps to overcome these obstacles. In the meantime days are turning into weeks, weeks into months. I have refrained from trying to contact her or her mother due to the fact I either dont get an answer or I get an irrational tyrade. Her initial reasoning for keeping them from me was because she was waiting for a court date, now that I have hired a lawyer she has told me she was going to try and keep the kids from me and my mother permanately. I have obviously taken the neccessary steps to get this ridiculous situation resolved. Is there ANYTHING else I could be doing or try to do besides just waiting, no disrespect to those in more dire situations. Thank you.