I have a personal signed IOU that is 21 years old and that person has never paid me the money that he owes me. Is there a time limit on that kind of document ? If not, how do I go about collecting on this bad debt?

Greetings and WELCOME, William! You have just posted your question on the Introductions section of this site.

If you post your question on the following link, it is more likely to get noticed and answered.

https://www.askmehelpdesk.com/newthread.php?do=newthread&f=190

Welcome William. I have moved your thread to the Bankruptcy & debt section where it will get the attention it deserves.