I am co excutor of a large estate, my brother hired the attorney. She refuses to represent me as well. Do she have this right.?

My brother hired this attorney, he''s retired and I work full time. He said he wanted to do all of the work, eventhough I volunteered to do my half. His attorney recommended I renouce my co-executorship. After increasing and constant coercion by them, I''ve decided to NOT renounce my co executorship to protect the large estate assets.. Now that I have not renounced, she refuses to represent me. Is there anything I can do to get he billings split with another attorney? I do not think it''s fair to pay for two sets of attys because of her conduct. She asserts that I am evil and crazy even though we have never even spoken. She has never answered my questions unless directed by him and then very superficially and dismissively. I have cordial relations with her paralegal. I would NEVER hire this attny. I asked my brother to change attorneys, as she is too inexperienced. She''s still there. Personally, I think she is manipulating the situation by creating havoc to increase billings.