Before you fund a suit against any Court appointed Trustee in a CH 7 BK I would strongly urge you to first understand the full scope of what fidiciary responsibiites may look like in a case such as United. It may surprise you.
This is a good read for anyone who would like more insight;
As a shareholder of UWBK your estate is administratively insolvent ..I'm not sure the board knows what that entails...and everything you've experienced to date, or expect to experience, must be viewed thru that lens. That one fact alone trumps all arguments for the estate going forward. Once insolvency happens, as it did from the very beginning in the United Western bank case, fiduciary duties & responsibilities shifts to the creditors. If United wasn't administratively insolvent you would hear more from the trustee(s) and on a more regular basis. They have told the shareholders everything they need to know...and as long as the story remains the same they have nothing more to add or say.
I would think long and hard before throwing good money after bad going after the Trustees in an insolvent BK case. My 2 cents worth bud.