Trying to clear Judgment and attorney on Judgment is not responing

The attorney on Default Judgment is no longer handling the client on Judgment. Was told after settling one of two Defaults were they are on court papers as representative. Been trying settle the debit and attorney office on Judgment hasn't return calls with questions I have left on machine. (They do not answer calls for all go to a machine) on contact information for the Judgment. That I'm unable to resolve due to not knowing who to contact. I need to resolve lien so a reduction in home loan can quality for gov't assistance loans. Time is running out for how long the loans will be available. Since Dec 2012 have been trying to resolve and in Apr 2013 when first debit settled the office acted like its not in computer and I reminded them I had a copy-than told they no longer have that client. Mis lead since Dec and now can't even get the name number of office that is handling it. What do I do? I need to remove this lien. The loan will also increase $500 mo in a short time