My ex retired NYPD 2011 and has not file for QDRO can I file a motion for contempt?

2011 my ex retired from NYPD. Divorce was file 2008 and I paid my 1/2 portion for the QDRO in 2006 and have proof of payment. I contacted my divorce attorney in 2011 and it was discovered my ex never paid his portion. I was unable to pay for the attorney to go forward. With this when my ex retired he 'begged me to work something out for him to survive". We worked out a mutual agreement, no laywers, signed, notarized and filed with court. He upheld the agreement until I filed for relocation. Kids live with him in NY and I am in NC. He refuses to pay agreement and refuses to file the QDRO. Can I file a motion for contempt or do I need to do a motion to show cause. I still am unable to pay for an attorney to do this and I know I need one to review the numbers. I have all documentation: proof I paid my 1/2 portion in 2006 (returned check and letter from attorney), my divorce agreement. And do I need/should include the agreement?