I asked for a list of my lawyer''s rates and fees 3 weeks ago without reply. Is my lawyer legally obligated to give me this information?

My father passed away in November (2011) and I was named executor of the estate. He did not leave a will, and my parents were divorced. I have worked with my lawyer since January, and feel I have done most of the work myself. He simply filed for the surrogate''s court letter of petition for me, and that is it. I asked for a list of his rates and fees almost a month ago, and got no reply. Two weeks ago I was told it just had to typed up and sent, but nothing has come. I called back and his receptionist had no answer as to why she hadn''t sent it out yet. At this point I am highly considering firing him and doing what I can on my own, then hiring another lawyer to finish up. This is ridiculous. Is he legally obligated to give me his rates? Should I fire him?