Due to my mother's declining cognitive health, I am now assuming joint trustee responsibilities with her. Is there a good book or resource (outside of the actual Prudent Investment Law) that is helpful for things like proper allocation, structuring within the trust, etc. It is a Revocable Living Trust and I want to make sure I'm informed of what needs to be done that is different from typical investing for her current situation and to set it up for ease of transfer.