Hi, I have seen your queations several times on this forum and it seems you have done your homework, but I am not sure if you are doing yourself the best service by shopping for property this way. Now it is time to hire an agent.
It is not very practical for you to as to buy REO's from an "REO Agent:. Why would you wat to limit your choices? Perhaps you are not familiar with how the listings work here in the US. All agents have access to all listings. One REO agents listing would not give you access to all REO's, why would you want to limit yourself? REO's are placed on our multiple listing serviced so that everyone has access to them.
What you may want to so is find a good agent, or one that YOU think will work best for you. That is what matters, not what lisitn gs they have. A good listing agent does not always make the best buyers agent in some cases. A buyers agent is usually more in tune to a buyers needs in and a listing agent may be concerned with getting listings and not focused on working with buyers. Generally the REO agents sit in an office and just work with banks to take REO listings and the agents in the field sell them. It can vary a bit, but this tends to be how it works now in this market.
As long as your intersts are protected, it doesn not matter which agent shows you the listings, it matters how well they do their job in making sure you have all of your contigencies in order and your contract is written correctly.
These are my suggestions, I hope it helps.
South Florida Brokers