Commercial Broker/Agent Relationship

[Account Closed]

When contacting a commercial broker/agent, what is the best way to pursue the relationship.  

1.  Is it common to have a "normal" Exclusive Buyers Agency contract or is it more common to simple get on a buyers list?

2.  Do individual agents have their own buyers lists or does the agency have one larger list?

If I am asking the wrong question, feel free to answer the correct one. :)   How do I find out about commercial properties for sale (MFH and/or self storage) and what does the relationship look like?

Thanks

Shane