When a person becomes power of attorney for her parents does she have the right to go to a bank and get into their accounts.

Only you can grant a power of attorney to somneone.  If you signed a Power of Attorney naming your daughter as your agent, the document probably gave her authority to access your bank accounts on your behalf.  If you did not sign it, she does not have that authority.  If you may have signed it but want to revoke or terminate it your can -- but you must present written notice of this to the bank and everywhere else your daughter might show the Power of Attorney.  You should also inform your daughter.  If you do not feel comfortable with her accessing your accounts, you might want to make a new Power of Attorney appointing someone else.  A local estate planning or elder law attorney can help you.  Use the find a lawyer function on the website of the National Academy of Elder Law Attorneys (www.naela.org)