I have just learned that my sister's husband of 35 years (I'll call him George) hasn't filed their personal income taxes going back a number of years. This has caused a lot of stress and anxiety for my sister, who recently underwent breast cancer treatment. Apparently, he hasn't filed because of his inability to organize. (His family has denial issues.)\ \ Their professional tax preparer has met with both of them and tried to work out a step-by-step program, but George consistently fails to meet the deadlines. I love my sister and want to be as supportive as possible, but I'm unsure what I can do. I have advised her to seek therapy. She has copies of business-related documents relating to the unfiled tax periods, but not enough information to file on her own.\ \ On top of everything else, she has several relationship issues with her children that are causing her grief. What else can I do? HELPLESS BIG BROTHER