Judgments

I am currently paying on a rental judgment from 8 years ago and am close to paying the original amount they asked for; however, they have added fees/interest when I was not employed here and there and now the balance owing is higher than the initial charge - what can I do? I have remained in contact with them the entire time and always provided legitimate contact information. In addition, the other party listed on the judgment hasn't ever responded, appeared or attempted to pay towards the judgment and neither the property management company or the law firm has assisted in finding him. Should I seek legal assistance, hire a private investigator or what? I would think that the property management company/individual property would have his social security number on file (as per their qualifying criteria) to aid the sheriffs' department in serving him the necessary paperwork.

What does "stipulating to judgment" mean and what is a "Summary Judgment"?

What is a summary judgement? Do I need to respond to it and if so within what time frame?

I collected a judgement from the defendent, how do I release the writ of Fieri facias?

What all do I have to do to prepare a Default Judgement?