They can't force you to do anything.

Just tell them to f off or you won't pay them whenever your house sells. It's up to you at the time of sale if you want to pay them.

You can also just hold onto the amount (even though interest accrues) and pay the original creditor directly. This really upsets the bill collectors because they don't get credit for their money until the creditor confirms they were paid to the collection agency.

Help please...A collection agency wants me to assign funds that I owe to a credit card company on the sale of my home in August...they requested that I do this through a lawyer...I have been sending them a small payment each month and also promised to pay the balance when my home sells...They have also been calling me at work at least 3 to 4 times a week...Can someone please let me know if they can force me to assign the funds...Thank you