I just got done dealing with these guys. Like many collections agencies these days they operate out of a law office. Don't be fooled: they may say that they are a law office but they must operate by the rules of a collection agency. They must adhere to the FDCPA (your best friend when dealing with any debt collector).
I remember when they first contacted me 2 years ago. They strategically didn't state that they would sue if I didn't pay them $4000 that day (if I had 4k I wouldn't have had a credit card written off while I was unemployed) they did pressure me into a payment plan, which I did. Don't make my mistake: if they call and demand a large amount of money by the end of the day (their typical strategy) tell them you don't know who they are and they must validate the debt in accordance with the Fair Debt Collection Practices Act. That will buy you some time, irritate the person on the other end of the phone (hopefully) and let you look at your options. The law says they must do this before they can proceed with further debt collection actions. In fact, they cannot even file for a judgment.
When (if) they validate the debt, make sure you check and see if the debt is time-barred in your state. It very well may be; collection agencies routinely try to collect on debt that is outside the statute of limitations. In my state (Virginia) the statute of limitations is three years from the last payment. Each state will vary.
This point is important to note when dealing with JP: they are not allowed to charge interest. Once an account has been charged off by the original creditor and bought by an investment group (read collection agency) they are not allowed to collect a single penny of interest. The firm knows that, but collections agencies will try to collect every red cent they can whether it is legal for them to do so or not. If you do set up a payment plan, they will try and tack on interest to the tune of 32%. If they do, contact the Federal Trade Commission and file and complaint. You may also be entitled to legal action under the FDCPA, as the law states that collection agencies are not allowed to charge interest. You are
not required to pay interest or fees to any collection agency.
Above all: they may try and play hardball. They will be rude over the phone. Before calling them, do your homework (this site is excellent) and remember: these people are parasites. They are not your friends, they are your enemies. They will try and collect money you don't even owe. Pay the money you owe, because that's your responsibility. But don't pay anyone who can't validate the debt, who demands money past the statute of limitations, and refuse to pay interest to any collection agency.