I am not sure it meets the technical terms of a conflict since your sister is the daughter. Thus her being the trustee and accountant is probably fine. She may be operating unethically in some other way though; perhaps unduely influencing mom? Having said all that my feeling is that anytime anybody has reason to question a relationship like this means there is a problem. It's too bad your sister is not aware of it and would then hopefully either distance herself or provide information/documentation to make others feel comfortable. Good luck to you. -John
Answered on Dec 09th, 2014 at 7:44 AM