Ez4u, thanks for your question and using Trulia.com to find out answers to your questions...
As for the list... what people are reffering too is to get on the approved vendor list of the asset managment compaines. When you get approved as a vendor that means that asset management company will possibly use your service when needed. Please note being on the list does never guarantee that you will get business it just means that the asset management company looked at your company and found out that you are trust worthy to work with them if needed.
My advice is for you to research asset management companies and apply on their site if possible to become an approved vendor if their website does not have this option then call them to find out how you go about doing that... please keep in mind getting on anyone's list will take time..
I know of some people who sells lists for these companies but the most economical way to get this done is by doing a search on Google for the term asset management company. Find their website and proceed from there.
Good luck with it...
Re/Max of Naperville