Jennifer
I am sorry to hear of your situation and wish you the best. You can join sermo(physician only website)for free and post a job opportunity or sale of your practice and building for free at that website. Maybe you would find a way to stay in practice. It makes me sad that you might/will close. I became a physician so that I could have my own business. I love my private practice and hope to be able to hang on in these difficult times.
Best of luck to you.