An attorney's fee is a fee charged by an attorney for work done in relation to a lawsuit or other work done by an attorney.

A non-recoverable attorney fee in foreclosure is a fee for work performed by the attorney (usually the bank's attorney) that the bank has to pay for but cannot pass on to the mortgagor.

a retainer fee

$300 include filing fee and attorney fee

There is a bit of a cross up in terminology here. A power of attorney expires on the death of the grantor or subject. An executor would get an estate fee.