Hi Jeb, a "co-listing agent" is when two agents team up to sell a listing, this is usually a real estate team, but also could be two agents who just happen to set up an agreement to work on that particular listing, and then they have an agreement to split the commission side for the listing agent. As for your question regarding co-listing agents being from different areas or states, my understanding is that the agent who agrees to take a listing (even as a co-listing agent) must be licensed to work in that state. Also you it would be in your best interest to have the agent(s) be members of that particular multiple listing service so that you get the most exposure of your home. My advice to you right now is if you're looking at finding another agent that you look for someone who can target your home to that demographics you described, and who has a lot of relocation and out-of-state marketing resources to get your home listing out there to the most amount of people. You're right it is a hard market right now, but there are still homes selling, as I don't have any specifics on your home I can't be more specific, and since you are working with an agent it is not ethical of me to approach you. Good luck and I hope my advice helps!