Sorry that you are frustrated with your experience thus far. Professional standards really will not allow any agent to get involved in your current transaction, so for this transaction, you may wish to speak to your agent's managing broker and ask him/her to handle the rest of the transaction.
I have worked with cash investors lately and have lots of experience representing buyers to purchase REO's. I am happy to provide you with references, and discuss if we are a fit to work together in the future. Click on my profile for my contact information.