Can a legal aid attorney request information without consent?

I have been the POA for a friend for many year and have assisted him for almost thirty years. My friend is disabled and is beginning to have minor memory problems. Almost 2 years ago I hired a middle age man who was recommended to me, to live in and provide daily care for my friend. The Care provider is unorganized and keeps tons of mail all over the place. I have asked him to separate his mail from my friends, and to keep his mail upstairs, where he resides. He continues to mix the mail. While looking for my friends mail. I found forms from social services with new power of attorney forms, which my friend assures me he never requested. On another occasion I found mail returned by IRS, with a form submitted by a Legal Aid Attorney, requesting copies of tax returns for a number of years. The form was supposedly signed by my friend; But he denies having done so. Out of concern I called the Attorney, but she never called back. Next I found a Letter from the Attorney, which was opened by the home attendant. This letter stated the Attorney was enclosing a bank statement, copies of checks, and also included a copy of my POA. I called the Attorney again, and she did not return my call. She is aware that I have POA. A call to her supervisor, enabled me to speak with the supervisors assistant, who after hearing my story referred me to a number, which is the number I began with. I believe the Legal Aid Attorney is complicit in what could lead to fraud.
What can I do? I am concerned the attendant may find a way to steal funds, and go back to Africa, where he would be out of jurisdiction.