Hello Welcome to TP
It is possible to give up lasting power of attorney. I hope you don't mind me asking why, as maybe we can help with advise , please don't feel you have to answer my question .
Here is a link to giving up attorney ship. I assume it is the same for an EPA others her will know. https://www.gov.uk/lasting-power-attorney-duties/stop-attorney.
I suggest it would be a good idea to have a thread of your own, where you will have many more replies. we have many different forums on TP. Some of our members post mainly in the Tea room as it offers a little more privacy , only members can see it.
back in a mo with a link to all our forums http://forum.alzheimers.org.uk/forum.php
Just click on the one you prefer, then click on the grey box near top right ( I am not sure on the exact wording create new thread. Choose a title and you're away