POA has been handling finances since dad fell ill. For dads safety, I believe an audit should be completed at least quarterly. How do I get this ball rolling? Since my brother has physically hurt me and the POA is constantly being cruel? I have a feeling something is going on....
Since you know large amounts of cash are being withdrawn, you must know who is making the withdrawals. The bank is mandated to report suspicious activity on a senior's account. A Power of Attorney isn't a license to steal.
Anyway, I say ask questions if that's what it takes to make you feel better. Just be careful of how you ask.